{"id":278,"date":"2025-12-23T13:23:41","date_gmt":"2025-12-23T13:23:41","guid":{"rendered":"https:\/\/www.labracse.gr\/?page_id=278"},"modified":"2026-01-26T16:39:58","modified_gmt":"2026-01-26T16:39:58","slug":"journal-papers","status":"publish","type":"page","link":"https:\/\/www.labracse.gr\/el\/journal-papers\/","title":{"rendered":"\u0395\u03c0\u03b9\u03c3\u03c4\u03b7\u03bc\u03bf\u03bd\u03b9\u03ba\u03ac \u03a0\u03b5\u03c1\u03b9\u03bf\u03b4\u03b9\u03ba\u03ac"},"content":{"rendered":"
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Ioannidis, D.; Rigopoulos, P.; Braimakis, K.; Pallis, P.; Karellas, S. Multi-objective ANN-driven genetic algorithm optimization of energy efficiency measures in an NZEB multi-family house building in Greece.
Energy and Buildings 2026, 351, 116653. https:\/\/doi.org\/10.1016\/j.enbuild.2025.116653<\/a><\/span><\/p>

Polychronakis, K.; Korres, D.; Sammoutos, C.; Vidalis, E.; Tzivanidis, C. Frequency domain model of wave-induced mismatch in a moored floating solar platform with thermal effects. Solar Energy 2026, 304, 114180. https:\/\/doi.org\/10.1016\/j.solener.2025.114180<\/a><\/span><\/p>

Lykas, P.; Bellos, E.; Tzivanidis, C. Dynamic investigation of a multiple energy production and storage system for a residential building. Renewable Energy 2026, 256, 123938. https:\/\/doi.org\/10.1016\/j.renene.2025.123938<\/a><\/span><\/p>

Lykas, P.; Bellos, E.; Tzivanidis, C. Comprehensive review and performance assessment of Carnot battery storage systems with multiple energy outputs. Energy Conversion and Management 2026, 348, 120702.
https:\/\/doi.org\/10.1016\/j.enconman.2025.120702<\/a><\/span><\/p>

Bellos, E.; Lykas, P.; Sammoutos, C.; Kitsopoulou, A.; Gonidaki, D.; Vidalis, E.; Rahbari, H.R.; Arabkoohsar, A.; Tzivanidis, C. Transient investigation of solar-powered absorption heat transformers for process heat production in industries. Renewable Energy 2026, 256, 124316. https:\/\/doi.org\/10.1016\/j.renene.2025.124316<\/a><\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t\t

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Avgerinou, H.; Braimakis, K.; Roumpedakis, T.C.; Karellas, S. Thermodynamic modeling and techno-economic assessment of hydrogen-fuelled diabatic compressed air energy storage configurations. Applied Thermal Engineering 2025, 278, 127325.
https:\/\/doi.org\/10.1016\/j.applthermaleng.2025.127325<\/a><\/p>

Braimakis, K.; Westermeier, M.; Schifflechner, C.; Beaughon, M.; Serafino, A.; Charalampidis, A.; et al.
A general framework for part-load optimization of air-cooled ORCs with screw expanders. Energy 2025, 332, 137061. https:\/\/doi.org\/10.1016\/j.energy.2025.137061<\/a><\/p>

Braimakis, K. Comparative techno-economic assessment of solar district heating architectures based on combined solar thermal collectors, heat pumps, PVs and batteries. Applied Thermal Engineering 2025, 281, 128723. https:\/\/doi.org\/10.1016\/j.applthermaleng.2025.128723<\/a><\/p>

Kitsopoulou, A.; Bellos, E.; Mitsopoulos, G.; Tzivanidis, C. A benchmark comparative thermodynamic analysis of transcritical CO\u2082 heat pump configurations for heating purposes. Thermal Science and Engineering Progress 2025, 68, 104200. https:\/\/doi.org\/10.1016\/j.tsep.2025.104200<\/a><\/p>

Vidalis, E.; Bellos, E.; Sammoutos, C.; Kitsopoulou, A.; Lykas, P.; Korres, D.N.; Gonidaki, D.; Tzivanidis, C. Design and performance investigation of a solar photovoltaic installation on a university building.
Green Energy and Sustainability 2025, 1, 0010. https:\/\/doi.org\/10.47248\/ges2505040010<\/a><\/p>

Lykas, P.; Tsimpoukis, A.; Bellos, E.; Tsagkalidis, N.; Nikolopoulos, N.; Tzivanidis, C. Evaluation of different thermal storage scenarios in an industrial polygeneration unit driven by waste heat and solar thermal collectors. Applied Thermal Engineering 2025, 279, 127606. https:\/\/doi.org\/10.1016\/j.applthermaleng.2025.127606<\/a><\/p>

Vagiakis, A.; Korres, D.N.; Tzivanidis, C. Simulation of natural convection heat transfer in dielectric liquids for single-phase immersion cooling rack servers. Applied Thermal Engineering 2025, 274, 126595.
https:\/\/doi.org\/10.1016\/j.applthermaleng.2025.126595<\/a><\/p>

Syngounas, E.; Tsimpoukis, D.; Bellos, E.; Koukou, M.K.; Tzivanidis, C.; Vrachopoulos, M.Gr.
Energy and exergy performance investigation of a transcritical CO\u2082 vapor ejector-based refrigeration system for marine provision plants. Applied Thermal Engineering 2025, 269, 126036. https:\/\/doi.org\/10.1016\/j.applthermaleng.2025.126036<\/a><\/p>

Rahbari, H.R.; Elmegaard, B.; Bellos, E.; Tzivanidis, C.; Arabkoohsar, A. Thermochemical technologies for industrial waste heat recovery: A comprehensive review. Renewable and Sustainable Energy Reviews 2025, 215, 115598. https:\/\/doi.org\/10.1016\/j.rser.2025.115598<\/a><\/p>

Sammoutos, C.; Kitsopoulou, A.; Lykas, P.; Gonidaki, D.; Vidalis, E.; Korres, D.; Rahbari, H.R.; Tzivanidis, C.; Bellos, E. Dynamic investigation of thermochemical heat upgrade and alternative industrial heating technologies. Energies 2025, 18, 1990. https:\/\/doi.org\/10.3390\/en18081990<\/a><\/p>

Braimakis, K.; Kitsopoulou, A.; Roumpedakis, T.C.; Stavrakakis, G.M.; Tzivanidis, C. Part-load-based optimization of solar ejector cooling cycle. Renewable Energy 2025, 243, 122582. https:\/\/doi.org\/10.1016\/j.renene.2025.122582<\/a><\/p>

Said, Z.; Bellos, E.; Muhammad Ali, H.; Rahman, S.; Tzivanidis, C. Nanofluids, turbulators, and novel working fluids for heat transfer processes and energy applications: Current status and prospects. Applied Thermal Engineering 2025, 258, 124478. https:\/\/doi.org\/10.1016\/j.applthermaleng.2024.124478<\/a><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t\t

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Stavrakakis, G.M.; Bakirtzis, D.; Drakaki, K.-K.; Yfanti, S.; Katsaprakakis, D.A.; Braimakis, K.; et al.
Application of the typology approach for energy renovation planning of public building stocks at the local level: A case study in Greece. Energies 2024, 17, 30689. https:\/\/doi.org\/10.3390\/en17030689<\/a><\/p>

Braimakis, K. Mapping the waste heat recovery potential of CO\u2082 intercooling compression via organic Rankine cycle. International Journal of Refrigeration 2024, 159, 309\u2013322. https:\/\/doi.org\/10.1016\/j.ijrefrig.2024.01.008<\/a><\/p>

Braimakis, K.; Karellas, S. Thermodynamic investigation of integrated organic Rankine cycle\u2013ejector vapor compression cooling cycle waste heat recovery configurations for cooling, heating and power production.
Energy 2024, 305, 132020. https:\/\/doi.org\/10.1016\/j.energy.2024.132020<\/a><\/p>

Fisher, R.; Ciappi, L.; Niknam, P.; Braimakis, K.; Karellas, S.; Frazzica, A.; et al. Innovative waste heat valorisation technologies for zero-carbon ships: A review. Applied Thermal Engineering 2024, 253, 123740.
https:\/\/doi.org\/10.1016\/j.applthermaleng.2024.123740<\/a><\/p>

Han, X.; Dai, Y.; Guo, X.; Braimakis, K.; Karellas, S.; Yan, J. A novel dual-stage intercooled and recuperative gas turbine system integrated with transcritical organic Rankine cycle: System modeling, energy and exergy analyses. Energy 2024, 305, 132252. https:\/\/doi.org\/10.1016\/j.energy.2024.132252<\/a><\/p>

Korres, D.N.; Papingiotis, T.; Koronaki, I.P.; Tzivanidis, C. Experimental analysis and optimization of a concentrated thermo-photovoltaic collector with bifacial receiver. Renewable Energy 2024, 236, 121401.
https:\/\/doi.org\/10.1016\/j.renene.2024.121401<\/a><\/p>

Sammoutos, C.; Bellos, E.; Kitsopoulou, A.; Lykas, P.; Vidalis, E.; Tzivanidis, C. Optical, thermal and exergy analysis of a beam-down linear Fresnel reflector coupled with a flat plate receiver. Solar Energy 2024, 282, 112949. https:\/\/doi.org\/10.1016\/j.solener.2024.112949<\/a><\/p>

Kitsopoulou, A.; Bellos, E.; Tzivanidis, C. An up-to-date review of passive building envelope technologies for sustainable design. Energies 2024, 17, 4039. https:\/\/doi.org\/10.3390\/en17164039<\/a><\/p>

Tsimpoukis, D.; Syngounas, E.; Bellos, E.; Koukou, M.; Tzivanidis, C.; Anagnostatos, S.; Vrachopoulos, G.
Data-driven energy efficiency comparison between operating R744 and R448A supermarket refrigeration systems based on hybrid experimental\u2013simulation analysis. Thermal Science and Engineering Progress 2024, 53, 102776. https:\/\/doi.org\/10.1016\/j.tsep.2024.102776<\/a><\/p>

Kitsopoulou, A.; Pallantzas, D.; Bellos, E.; Tzivanidis, C. Mapping the potential of zero-energy building in Greece using roof photovoltaics. Designs 2024, 8, 68. https:\/\/doi.org\/10.3390\/designs8040068<\/a><\/p>

Kitsopoulou, A.; Pallantzas, D.; Sammoutos, C.; Lykas, P.; Bellos, E.; Vrachopoulos, M.Gr.; Tzivanidis, C.
A comparative investigation of building rooftop retrofit actions using an energy and computational fluid dynamics approach. Energy and Buildings 2024, 315, 114326. https:\/\/doi.org\/10.1016\/j.enbuild.2024.114326<\/a><\/p>

Kitsopoulou, A.; Ziozas, N.; Iliadis, P.; Bellos, E.; Tzivanidis, C.; Nikolopoulos, N. Energy performance analysis of alternative building retrofit interventions for the four climatic zones of Greece. Journal of Building Engineering 2024, 87, 109015. https:\/\/doi.org\/10.1016\/j.jobe.2024.109015<\/a><\/p>

Lykas, P.; Bellos, E.; Kitsopoulou, A.; Sammoutos, C.; Tzivanidis, C. Electricity and hydrogen cogeneration: A case study simulation via the Aspen Plus tool. Energy 2024, 294, 130903.
https:\/\/doi.org\/10.1016\/j.energy.2024.130903<\/a><\/p>

Kitsopoulou, A.; Bellos, E.; Sammoutos, C.; Lykas, P.; Vrachopoulos, M.G.; Tzivanidis, C. A detailed investigation of thermochromic dye-based roof coatings for Greek climatic conditions. Journal of Building Engineering 2024, 84, 108570. https:\/\/doi.org\/10.1016\/j.jobe.2024.108570<\/a><\/p>

Bellos, E.; Arabkoohsar, A.; Lykas, P.; Sammoutos, C.; Kitsopoulou, A.; Tzivanidis, C. Investigation of a solar-driven absorption heat transformer with various collector types for industrial process heating. Applied Thermal Engineering 2024, 244, 122665. https:\/\/doi.org\/10.1016\/j.applthermaleng.2024.122665<\/a><\/p>

Lykas, P.; Bellos, E.; Kitsopoulou, A.; Tzivanidis, C. Dynamic analysis of a solar\u2013biomass-driven multigeneration system based on an s-CO\u2082 Brayton cycle. International Journal of Hydrogen Energy 2024, 59, 1268\u20131286. https:\/\/doi.org\/10.1016\/j.ijhydene.2024.02.093<\/a><\/p>

Korres, D.N.; Bellos, E.; Tzivanidis, C. An innovative asymmetrical CPC with integrated PCM as an in-line water heater. Solar Energy 2024, 269, 112342. https:\/\/doi.org\/10.1016\/j.solener.2024.112342<\/a><\/p>

Papingiotis, T.; Korres, D.N.; Koronaki, I.; Tzivanidis, C. Utilization of H\u2082O\/CuO and Syltherm 800\/CuO nanofluids in a concentrating solar collector with photovoltaic elements. Energies 2024, 17, 576.
https:\/\/doi.org\/10.3390\/en17030576<\/a><\/p>

Pavlovic, S.; Bellos, E.; Grozdanovic, M.; Stefanovic, V.; Vukic, M.; Ilic, M.; Tzivanidis, C. Daily thermodynamic analysis of a solar dish-driven reheating organic Rankine cycle. Thermal Science 2024, 28, 3209\u20133218. https:\/\/doi.org\/10.2298\/TSCI230902055P<\/a><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t\t

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Braimakis, K.; Karellas, S. Exergy efficiency potential of dual-phase expansion trilateral and partial evaporation ORC with zeotropic mixtures. Energy 2023, 262, 125475. https:\/\/doi.org\/10.1016\/j.energy.2022.125475<\/a><\/p>

Wieland, C.; Schifflechner, C.; Braimakis, K.; Kaufmann, F.; Dawo, F.; Karellas, S.; et al. Innovations for organic Rankine cycle power systems: Current trends and future perspectives. Applied Thermal Engineering 2023, 225, 120201. https:\/\/doi.org\/10.1016\/j.applthermaleng.2023.120201<\/a><\/p>

Stavrakakis, G.M.; Katsaprakakis, D.A.; Braimakis, K. A computational fluid dynamics modelling approach for the numerical verification of the bioclimatic design of a public urban area in Greece.
Sustainability 2023, 15, 11642. https:\/\/doi.org\/10.3390\/su151511642<\/a><\/p>

Bellos, E.; Lykas, P.; Tzivanidis, C. Thermodynamic investigation of a novel organic Rankine cycle including partial evaporation, dual-phase expander, flash tank, dry expander and recuperator for waste heat recovery. Thermal Science and Engineering Progress 2023, 46, 102244. https:\/\/doi.org\/10.1016\/j.tsep.2023.102244<\/a><\/p>

Kitsopoulou, A.; Bellos, E.; Lykas, P.; Sammoutos, C.; Vrachopoulos, M.Gr.; Tzivanidis, C. A systematic analysis of phase change material and optically advanced roof coatings integration for Athenian climatic conditions. Energies 2023, 16, 7521. https:\/\/doi.org\/10.3390\/en16227521<\/a><\/p>

Bellos, E.; Tzivanidis, C. A detailed investigation of an evacuated flat plate solar collector. Applied Thermal Engineering 2023, 234, 121334. https:\/\/doi.org\/10.1016\/j.applthermaleng.2023.121334<\/a><\/p>

Korres, D.N.; Koronaki, I.P.; Tzivanidis, C. Thermal efficiency enhancement of an evacuated tube collector: Experimental, numerical and analytical approach. Thermal Science and Engineering Progress 2023, 45, 102152. https:\/\/doi.org\/10.1016\/j.tsep.2023.102152<\/a><\/p>

Papingiotis, T.; Korres, D.N.; Koronaki, I.; Tzivanidis, C. Energetical and exergetical analyses of a concentrating PV\/T collector: A numerical approach. Applied Sciences 2023, 13, 10669. https:\/\/doi.org\/10.3390\/app131910669<\/a><\/p>

Tsimpoukis, D.; Syngounas, E.; Bellos, E.; Koukou, M.; Tzivanidis, C.; Anagnostatos, S.; Vrachopoulos, M.G. Optimization analysis of organic Rankine cycle powered by waste heat of a supermarket transcritical CO\u2082 multi-ejector refrigeration cycle. Journal of Cleaner Production 2023, 418, 138106. https:\/\/doi.org\/10.1016\/j.jclepro.2023.138106<\/a><\/p>

Bellos, E.; Lykas, P.; Sammoutos, C.; Kitsopoulou, A.; Korres, D.; Tzivanidis, C. Thermodynamic investigation of a solar-driven organic Rankine cycle with partial evaporation. Energy Nexus 2023, 11, 100229. https:\/\/doi.org\/10.1016\/j.nexus.2023.100229<\/a><\/p>

Sammoutos, C.; Kitsopoulou, A.; Lykas, P.; Bellos, E.; Tzivanidis, C. Dynamic investigation of a solar-driven Brayton cycle with supercritical CO\u2082. Applied Sciences 2023, 13, 71. https:\/\/doi.org\/10.3390\/asi6040071<\/a><\/p>

Korres, D.N.; Tzivanidis, C. A flat plate collector with a multi-cavity receiver as an innovative alternative in contrast to the classical design: A comparative study with experimental validation. Thermal Science and Engineering Progress 2023, 42, 101874. https:\/\/doi.org\/10.1016\/j.tsep.2023.101874<\/a><\/p>

Korres, D.N.; Papingiotis, T.; Koronaki, I.; Tzivanidis, C. Thermal and optical analyses of a hybrid solar photovoltaic\/thermal (PV\/T) collector with asymmetric reflector: Numerical modeling and validation with experimental results. Sustainability 2023, 15, 9932. https:\/\/doi.org\/10.3390\/su15139932<\/a><\/p>

Kitsopoulou, A.; Bellos, E.; Lykas, P.; Vrachopoulos, M.Gr.; Tzivanidis, C. Multi-objective evaluation of different retrofitting scenarios for a typical Greek building. Sustainable Energy Technologies and Assessments 2023, 57, 103156. https:\/\/doi.org\/10.1016\/j.seta.2023.103156<\/a><\/p>

Tsimpoukis, D.; Syngounas, E.; Bellos, E.; Koukou, M.; Tzivanidis, C.; Anagnostatos, S.; Vrachopoulos, G. Thermodynamic and economic analysis of a supermarket transcritical CO\u2082 refrigeration system coupled with \u00a0olar-fed supercritical CO\u2082 Brayton and organic Rankine cycles. Energy Conversion and Management: X 2023, 18, 100351. https:\/\/doi.org\/10.1016\/j.ecmx.2023.100351<\/a><\/p>

Bellos, E.; Lykas, P.; Tsimpoukis, D.; Korres, D.N.; Kitsopoulou, A.; Vrachopoulos, M.Gr.; Tzivanidis, C.
Multicriteria analysis of a solar-assisted space heating unit with a high-temperature heat pump for Greek climate conditions. Applied Sciences 2023, 13, 4066. https:\/\/doi.org\/10.3390\/app13064066<\/a><\/p>

Bellos, E.; Lykas, P.; Tzivanidis, C. Performance analysis of a zero-energy building using photovoltaics and hydrogen storage. Applied Sciences 2023, 13, 43. https:\/\/doi.org\/10.3390\/asi6020043<\/a><\/p>

Bellos, E.; Korres, D.N.; Tzivanidis, C. Investigation of a compound parabolic collector with a flat glazing.
Sustainability 2023, 15, 4347. https:\/\/doi.org\/10.3390\/su15054347<\/a><\/p>

Bellos, E.; Tsimpoukis, D.; Lykas, P.; Kitsopoulou, A.; Korres, D.N.; Vrachopoulos, M.Gr.; Tzivanidis, C.
Investigation of a high-temperature heat pump for heating purposes. Applied Sciences 2023, 13, 2072.
https:\/\/doi.org\/10.3390\/app13042072<\/a><\/p>

Lykas, P.; Georgousis, N.; Bellos, E.; Tzivanidis, C. A comprehensive review of solar-driven multigeneration systems with hydrogen production. International Journal of Hydrogen Energy 2023, 48, 437\u2013477. https:\/\/doi.org\/10.1016\/j.ijhydene.2022.09.226<\/a><\/p>

Lykas, P.; Bellos, E.; Korres, D.N.; Kitsopoulou, A.; Tzivanidis, C. Energy, exergy, economic, and environmental (4E) analysis of a pumped thermal energy storage system for trigeneration in buildings.
Energy Advances 2023, 2, 430\u2013440. https:\/\/doi.org\/10.1039\/D2YA00360K<\/a><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t\t

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Kontou, V.; Grimekis, D.; Braimakis, K.; Karellas, S. Techno-economic assessment of dimethyl carbonate production based on carbon capture and utilization and power-to-fuel technology. Renewable and Sustainable Energy Reviews 2022, 157, 112006. https:\/\/doi.org\/10.1016\/j.rser.2021.112006<\/a><\/p>

Lykas, P.; Georgousis, N.; Kitsopoulou, A.; Korres, D.N.; Bellos, E.; Tzivanidis, C. A detailed parametric analysis of a solar-powered cogeneration system for electricity and hydrogen production. Applied Sciences 2022, 12, 433. https:\/\/doi.org\/10.3390\/app13010433<\/a><\/p>

Korres, D.N.; Bellos, E.; Lykas, P.; Tzivanidis, C. An innovative parabolic trough collector design with a twin-cavity receiver. Applied Sciences 2022, 12, 12551. https:\/\/doi.org\/10.3390\/app122412551<\/a><\/p>

Korres, D.N.; Bellos, E.; Tzivanidis, C. Integration of a linear cavity receiver in an asymmetric compound parabolic collector. Energies 2022, 15, 8635. https:\/\/doi.org\/10.3390\/en15228635<\/a><\/p>

Lykas, P.; Bellos, E.; Caralis, G.; Tzivanidis, C. Dynamic investigation and optimization of a solar-based unit for power and green hydrogen production: A case study of the Greek island of Kythnos. Applied Sciences 2022, 12, 11134. https:\/\/doi.org\/10.3390\/app122111134<\/a><\/p>

Korres, D.N.; Tzivanidis, C. A novel asymmetric compound parabolic collector under experimental and numerical investigation. Renewable Energy 2022, 199, 1580\u20131592. https:\/\/doi.org\/10.1016\/j.renene.2022.08.030<\/a><\/p>

Bellos, E.; Lykas, P.; Tzivanidis, C. Theoretical analysis of a biomass-driven single-effect absorption heat pump for heating and cooling purposes. Applied Sciences 2022, 12, 99. https:\/\/doi.org\/10.3390\/asi5050099<\/a><\/p>

Korres, D.N.; Tzivanidis, C. An innovative small-sized double cavity parabolic trough collector under investigation and comparison with a conventional design. Sustainable Energy Technologies and assessments 2022, 53, 102462. https:\/\/doi.org\/10.1016\/j.seta.2022.102462<\/a><\/p>

Bellos, E.; Said, Z.; Lykas, P.; Tzivanidis, C. A review of polygeneration systems with CO\u2082 working fluid.
Thermal Science and Engineering Progress 2022, 34, 101435. https:\/\/doi.org\/10.1016\/j.tsep.2022.101435<\/a><\/p>

Bellos, E.; Lykas, P.; Tzivanidis, C. Heat and flow study of internally finned tubes with different fin geometries. Applied Sciences 2022, 12, 50. https:\/\/doi.org\/10.3390\/asi5030050<\/a><\/p>

Lykas, P.; Georgousis, N.; Bellos, E.; Tzivanidis, C. Investigation and optimization of a CO\u2082-based polygeneration unit for supermarkets. Applied Energy 2022, 311, 118717. https:\/\/doi.org\/10.1016\/j.apenergy.2022.118717<\/a><\/p>

Bellos, E.; Lykas, P.; Tzivanidis, C. Investigation of a solar-driven organic Rankine cycle with reheating.
Applied Sciences 2022, 12, 2322. https:\/\/doi.org\/10.3390\/app12052322<\/a><\/p>

Bellos, E.; Lykas, P.; Tzivanidis, C. Pumped thermal energy storage system for trigeneration: The concept of power-to-XYZ. Applied Sciences 2022, 12, 970. https:\/\/doi.org\/10.3390\/app12030970<\/a><\/p>

Georgousis, N.; Lykas, P.; Bellos, E.; Tzivanidis, C. Multi-objective optimization of a solar-driven polygeneration system based on CO\u2082 working fluid. Energy Conversion and Management 2022, 252, 115136. https:\/\/doi.org\/10.1016\/j.enconman.2021.115136<\/a><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t\t

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Braimakis, K. Solar ejector cooling systems: A review. Renewable Energy 2021, 164, 566\u2013602. https:\/\/doi.org\/10.1016\/j.renene.2020.09.079<\/a><\/span><\/p>

Georgousopoulos, S.; Braimakis, K.; Grimekis, D.; Karellas, S. Thermodynamic and techno-economic assessment of pure and zeotropic fluid ORCs for waste heat recovery in a biomass IGCC plant. Applied Thermal Engineering 2021, 183, 116202. https:\/\/doi.org\/10.1016\/j.applthermaleng.2020.116202<\/a><\/span><\/p>

Braimakis, K.; Grispos, V.; Karellas, S. Exergetic efficiency potential of double-stage ORCs with zeotropic mixtures of natural hydrocarbons and CO\u2082. Energy 2021, 218, 119577. https:\/\/doi.org\/10.1016\/j.energy.2020.119577<\/a><\/span><\/p>

Pallis, P.; Varvagiannis, E.; Braimakis, K.; Roumpedakis, T.; Leontaritis, A.D.; Karellas, S. Development, experimental testing and techno-economic assessment of a fully automated marine organic Rankine cycle prototype for jacket cooling water heat recovery. Energy 2021, 228, 120596. https:\/\/doi.org\/10.1016\/j.energy.2021.120596<\/a><\/span><\/p>

Roumpedakis, T.C.; Fostieris, N.; Braimakis, K.; Monokrousou, E.; Charalampidis, A.; Karellas, S.
Techno-economic optimization of medium-temperature solar-driven subcritical organic Rankine cycle.
Thermo 2021, 1, 77\u2013105. https:\/\/doi.org\/10.3390\/thermo1010007<\/a><\/span><\/p>

Pallis, P.; Braimakis, K.; Roumpedakis, T.C.; Varvagiannis, E.; Karellas, S.; Doulos, L.; Katsaros, M.; Vourliotis, P. Energy and economic performance assessment of efficiency measures in zero-energy office buildings in Greece. Building and Environment 2021, 206, 108378. https:\/\/doi.org\/10.1016\/j.buildenv.2021.108378<\/a><\/span><\/p>

Braimakis, K.; Charalampidis, A.; Karellas, S. Techno-economic assessment of a small-scale biomass ORC\u2013CHP for district heating. Energy Conversion and Management 2021, 247, 114705. https:\/\/doi.org\/10.1016\/j.enconman.2021.114705<\/a><\/span><\/p>

Tsimpoukis, D.; Syngounas, E.; Bellos, E.; Koukou, M.; Tzivanidis, C.; Anagnostatos, S.; Vrachopoulos, M.G. Investigation of energy and financial performance of a novel CO\u2082 supercritical solar\u2013biomass trigeneration system for operation in the climate of Athens. Energy Conversion and Management 2021, 245, 114583. https:\/\/doi.org\/10.1016\/j.enconman.2021.114583<\/a><\/span><\/p>

Bellos, E.; Tzivanidis, C. Investigation of a novel CO\u2082 transcritical organic Rankine cycle driven by parabolic trough solar collectors. Applied Sciences 2021, 11, 53. https:\/\/doi.org\/10.3390\/asi4030053<\/a><\/span><\/p>

Bellos, E.; Tzivanidis, C. Parametric analysis of a solar-driven trigeneration system with an organic Rankine cycle and a vapor compression cycle. Energy and Built Environment 2021, 2, 278\u2013289. https:\/\/doi.org\/10.1016\/j.enbenv.2020.08.004<\/a><\/span><\/p>

Bellos, E.; Tzivanidis, C. Parametric investigation of a ground source CO\u2082 heat pump for space heating.
Energies 2021, 14, 3563. https:\/\/doi.org\/10.3390\/en14123563<\/a><\/span><\/p>

Bellos, E.; Tzivanidis, C.; Said, Z. Investigation and optimization of a solar-assisted pumped thermal energy storage system with flat plate collectors. Energy Conversion and Management 2021, 237, 114137.
https:\/\/doi.org\/10.1016\/j.enconman.2021.114137<\/a><\/span><\/p>

Bellos, E.; Tzivanidis, C. Dynamic investigation and optimization of a solar-fed trigeneration system.
Applied Thermal Engineering 2021, 191, 116869. https:\/\/doi.org\/10.1016\/j.applthermaleng.2021.116869<\/a><\/span><\/p>

Bellos, E.; Chatzovoulos, I.; Tzivanidis, C. Yearly investigation of a solar-driven absorption refrigeration system with ammonia\u2013water absorption pair. Thermal Science and Engineering Progress 2021, 23, 100885.
https:\/\/doi.org\/10.1016\/j.tsep.2021.100885<\/a><\/span><\/p>

Bellos, E.; Tzivanidis, C. Parametric analysis of a polygeneration system with CO\u2082 working fluid. Applied Sciences 2021, 11, 3215. https:\/\/doi.org\/10.3390\/app11073215<\/a><\/span><\/p>

Tsimpoukis, D.; Syngounas, E.; Petsanas, D.; Mitsopoulos, G.; Anagnostatos, S.; Bellos, E.; Tzivanidis, C.; Vrachopoulos, M.G. Energy and environmental investigation of R744 all-in-one configurations for refrigeration and heating\/air-conditioning needs of a supermarket. Journal of Cleaner Production 2021, 279, 123234. https:\/\/doi.org\/10.1016\/j.jclepro.2020.123234<\/a><\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t\t

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Tsimpoukis, D.; Syngounas, E.; Petsanas, D.; Mitsopoulos, G.; Anagnostatos, S.; Bellos, E.; Tzivanidis, C.; Vrachopoulos, M.G. Energy and environmental investigation of R744 all-in-one configurations for refrigeration and heating\/air-conditioning needs of a supermarket. Journal of Cleaner Production 2021, 279, 123234. https:\/\/doi.org\/10.1016\/j.jclepro.2020.123234<\/a><\/p>

Braimakis, K.; Magiri-Skouloudi, D.; Grimekis, D.; Karellas, S. Energy\u2013exergy analysis of ultra-supercritical biomass-fuelled steam power plants for industrial CHP, district heating and cooling. Renewable Energy 2020, 154, 252\u2013269. https:\/\/doi.org\/10.1016\/j.renene.2020.02.091<\/a><\/p>

Braimakis, K.; et al. Exergetic performance of CO\u2082 and ultra-low-GWP refrigerant mixtures as working fluids in ORC for waste heat recovery. Energy 2020, 201, 117801. https:\/\/doi.org\/10.1016\/j.energy.2020.117801<\/a><\/p>

Roumpedakis, T.C.; Loumpardis, G.; Monokrousou, E.; Braimakis, K.; Charalampidis, A.; Karellas, S.
Exergetic and economic analysis of a solar-driven small-scale ORC. Renewable Energy 2020, 157, 1008\u20131024. https:\/\/doi.org\/10.1016\/j.renene.2020.05.016<\/a><\/p>

Bellos, E.; Sarakatsanis, I.; Tzivanidis, C. Investigation of different storage systems for solar-driven organic Rankine cycle. Applied Sciences 2020, 10, 52. https:\/\/doi.org\/10.3390\/asi3040052<\/a><\/p>

Bellos, E.; Tzivanidis, C. Solar concentrating systems and applications in Greece: A critical review.
Journal of Cleaner Production 2020, 272, 122855. https:\/\/doi.org\/10.1016\/j.jclepro.2020.122855<\/a><\/p>

Bellos, E.; Tzivanidis, C. Polynomial expressions for the thermal efficiency of the parabolic trough solar collector. Applied Sciences 2020, 10, 6901. https:\/\/doi.org\/10.3390\/app10196901<\/a><\/p>

Bellos, E.; Tzivanidis, C. Incorporation of an organic Rankine cycle in a transcritical booster CO\u2082 refrigeration system. International Journal of Energy Research 2020, 44, 7974\u20137988.
https:\/\/doi.org\/10.1002\/er.5192<\/a><\/p>

Bellos, E.; Tzivanidis, C. Energy and financial analysis of a solar-driven thermoelectric generator.
Journal of Cleaner Production 2020, 264, 121534. https:\/\/doi.org\/10.1016\/j.jclepro.2020.121534<\/a><\/p>

Bellos, E.; Tzivanidis, C. Concentrating solar collectors for a trigeneration system: A comparative study.
Applied Sciences 2020, 10, 4492. https:\/\/doi.org\/10.3390\/app10134492<\/a><\/p>

Korres, D.N.; Tzivanidis, C. Investigation of a novel small-sized bifacial cavity PTC and comparison with conventional configurations. Thermal Science and Engineering Progress 2020, 17, 100355. https:\/\/doi.org\/10.1016\/j.tsep.2019.100355<\/a><\/p>

Bellos, E.; Tzivanidis, C.; Said, Z. A systematic parametric thermal analysis of nanofluid-based parabolic trough solar collectors. Sustainable Energy Technologies and Assessments 2020, 39, 100714.
https:\/\/doi.org\/10.1016\/j.seta.2020.100714<\/a><\/p>

Bellos, E.; Tzivanidis, C. Financial optimization of a solar-driven organic Rankine cycle.
Applied Sciences 2020, 10, 23. https:\/\/doi.org\/10.3390\/asi3020023<\/a><\/p>

Tzivanidis, C.; Bellos, E. A comparative study of solar-driven trigeneration systems for the building sector.
Energies 2020, 13, 2074. https:\/\/doi.org\/10.3390\/en13082074<\/a><\/p>

Bellos, E.; Tzivanidis, C. Parametric investigation of a trigeneration system with an organic Rankine cycle and absorption heat pump driven by parabolic trough collectors for the building sector. Energies 2020, 13, 1800. https:\/\/doi.org\/10.3390\/en13071800<\/a><\/p>

Kasaeian, A.; Bellos, E.; Shamaeizadeh, A.; Tzivanidis, C. Solar-driven polygeneration systems: Recent progress and outlook. Applied Energy 2020, 264, 114764. https:\/\/doi.org\/10.1016\/j.apenergy.2020.114764<\/a><\/p>

Bellos, E.; Tzivanidis, C. Enhancing the performance of a parabolic trough collector with combined thermal and optical techniques. Applied Thermal Engineering 2020, 164, 114496. https:\/\/doi.org\/10.1016\/j.applthermaleng.2019.114496<\/a><\/p>

de Riese, T.; Hansen, L.; Magiri-Skouloudi, D.; Braimakis, K.; Clemens, L.; Bergins, C.; Fendt, S.; Karellas, S.; Spliethoff, H. The Biofficiency Project\u2014Part 2: A Blueprint Design for the Next Generation of Biomass-Fired Cogeneration Plants. VGB PowerTech<\/em> 2020, 100<\/em>, 62\u201369. https:\/\/mediatum.ub.tum.de\/node?id=1577107&change_language=en<\/a><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t\t

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2019 <\/div><\/span>\n\t\t\t\t\t\t\t\n\t\t\t<\/path><\/svg><\/span>\n\t\t\t<\/path><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t
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Roumpedakis, T.C.; Christou, T.; Monokrousou, E.; Braimakis, K.; Karellas, S. Integrated ORC\u2013adsorption cycle: A first- and second-law analysis of potential configurations. Energy 2019, 179, 46\u201358. https:\/\/doi.org\/10.1016\/j.energy.2019.04.069<\/a><\/p>

Pallis, P.; Gkonis, N.; Varvagiannis, E.; Braimakis, K.; Karellas, S.; Katsaros, M. Cost-effectiveness assessment and beyond: A study on energy efficiency interventions in Greek residential building stock.
Energy and Buildings 2019, 182, 1\u201318. https:\/\/doi.org\/10.1016\/j.enbuild.2018.10.024<\/a><\/p>

Pallis, P.; Gkonis, N.; Varvagiannis, E.; Braimakis, K.; Karellas, S.; Katsaros, M.; et al. Towards NZEB in Greece: A comparative study between cost optimality and energy efficiency for newly constructed residential buildings. Energy and Buildings 2019, 198, 115\u2013137. https:\/\/doi.org\/10.1016\/j.enbuild.2019.06.005<\/a><\/p>

Tzivanidis, C.; Bellos, E. Energetic, exergetic, and financial investigation of biomass-driven trigeneration system. Journal of Energy Engineering 2019, 145, 04019020. https:\/\/doi.org\/10.1061\/(ASCE)EY.1943-7897.0000622<\/a><\/p>

Bellos, E.; Tzivanidis, C. Enhancing the performance of a CO\u2082 refrigeration system with the use of an absorption chiller. International Journal of Refrigeration 2019, 108, 37\u201352. https:\/\/doi.org\/10.1016\/j.ijrefrig.2019.09.009<\/a><\/p>

Bellos, E.; Tzivanidis, C.; Nikolaou, N. Investigation and optimization of a solar-assisted heat pump driven by nanofluid-based hybrid PV. Energy Conversion and Management 2019, 198, 111831. https:\/\/doi.org\/10.1016\/j.enconman.2019.111831<\/a><\/p>

Bellos, E.; Skaltsas, I.; Pliakos, O.; Tzivanidis, C. Energy and financial investigation of a cogeneration system based on linear Fresnel reflectors. Energy Conversion and Management 2019, 198, 111821.
https:\/\/doi.org\/10.1016\/j.enconman.2019.111821<\/a><\/p>

Plytaria, M.; Tzivanidis, C.; Alexopoulos, I.; Bellos, E.; Antonopoulos, K. Comparison of two solar-assisted underfloor heating systems with phase change materials. International Journal of Thermodynamics 2019, 22, 138\u2013147. https:\/\/doi.org\/10.5541\/ijot.495329<\/a><\/p>

Bellos, E.; Tzivanidis, C. Design of a solar-driven cogeneration system using flat plate collectors and evacuated tube collectors. International Journal of Energy Research 2019, 43, 5841\u20135851.
https:\/\/doi.org\/10.1002\/er.4689<\/a><\/p>

Bellos, E.; Tzivanidis, C.; Moghimi, M.A. Reducing the optical end losses of a linear Fresnel reflector using novel techniques. Solar Energy 2019, 186, 247\u2013256. https:\/\/doi.org\/10.1016\/j.solener.2019.05.020<\/a><\/p>

Bellos, E.; Daniil, I.; Tzivanidis, C. A cylindrical insert for parabolic trough solar collector. Heat and Fluid Flow 2019, 29, 1846\u20131876. https:\/\/doi.org\/10.1108\/HFF-05-2018-0190<\/a><\/p>

Bellos, E.; Vrachopoulos, M.Gr.; Tzivanidis, C. Theoretical investigation of a novel hybrid refrigeration cycle based on the partial thermal isochoric compression. Thermal Science and Engineering Progress 2019, 11, 239\u2013248. https:\/\/doi.org\/10.1016\/j.tsep.2019.04.003<\/a><\/p>

Plytaria, M.T.; Tzivanidis, C.; Bellos, E.; Antonopoulos, K.A. Parametric analysis and optimization of an underfloor solar-assisted heating system with phase change materials. Thermal Science and Engineering Progress 2019, 10, 59\u201372. https:\/\/doi.org\/10.1016\/j.tsep.2019.01.010<\/a><\/p>

Plytaria, M.T.; Bellos, E.; Tzivanidis, C.; Antonopoulos, K.A. Numerical simulation of a solar cooling system with and without phase change materials in radiant walls of a building. Energy Conversion and Management 2019, 188, 40\u201353. https:\/\/doi.org\/10.1016\/j.enconman.2019.03.042<\/a><\/p>

Korres, D.N.; Tzivanidis, C.; Koronaki, I.P.; Nitsas, M.T. Experimental, numerical and analytical investigation of a U-type evacuated tube collectors array. Renewable Energy 2019, 135, 218\u2013231.
https:\/\/doi.org\/10.1016\/j.renene.2018.12.003<\/a><\/p>

Korres, D.N.; Tzivanidis, C. Development of two new semi-empirical formulas for estimation of solar absorptance in circular cavity receivers. Thermal Science and Engineering Progress 2019, 10, 147\u2013153.
https:\/\/doi.org\/10.1016\/j.tsep.2019.01.017<\/a><\/p>

Bellos, E.; Tzivanidis, C. CO\u2082 transcritical refrigeration cycle with dedicated subcooling: Mechanical compression vs. absorption chiller. Applied Sciences 2019, 9, 1605. https:\/\/doi.org\/10.3390\/app9081605<\/a><\/p>

Korres, D.N.; Tzivanidis, C. Numerical investigation and optimization of an experimentally analyzed solar CPC. Energy 2019, 172, 57\u201367. https:\/\/doi.org\/10.1016\/j.energy.2019.01.119<\/a><\/p>

Bellos, E.; Bousi, E.; Tzivanidis, C.; Pavlovic, S. Optical and thermal analysis of different cavity receiver designs for solar dish concentrators. Energy Conversion and Management: X 2019, 2, 100013. https:\/\/doi.org\/10.1016\/j.ecmx.2019.100013<\/a><\/p>

Bellos, E.; Pavlovic, S.; Stefanovic, V.; Tzivanidis, C.; Nakomcic-Smaradgakis, B.B. Parametric analysis and yearly performance of a trigeneration system driven by solar-dish collectors. International Journal of Energy Research 2019, 43, 1534\u20131546. https:\/\/doi.org\/10.1002\/er.4380<\/a><\/p>

Bellos, E.; Tzivanidis, C. Evaluation of a solar-driven trigeneration system with conventional and new criteria. International Journal of Sustainable Energy 2019, 38, 238\u2013252. https:\/\/doi.org\/10.1080\/14786451.2018.1494173<\/a><\/p>

Bellos, E.; Tzivanidis, C. Alternative designs of parabolic trough solar collectors. Progress in Energy and Combustion Science 2019, 71, 81\u2013117. https:\/\/doi.org\/10.1016\/j.pecs.2018.11.001<\/a><\/p>

Bellos, E.; Tzivanidis, C. A theoretical comparative study of CO\u2082 cascade refrigeration systems. Applied Sciences 2019, 9, 790. https:\/\/doi.org\/10.3390\/app9040790<\/a><\/p>

Plytaria, M.T.; Bellos, E.; Tzivanidis, C.; Antonopoulos, K.A. Financial and energetic evaluation of solar-assisted heat pump underfloor heating systems with phase change materials. Applied Thermal Engineering 2019, 149, 548\u2013564. https:\/\/doi.org\/10.1016\/j.applthermaleng.2018.12.075<\/a><\/p>

Korres, D.; Bellos, E.; Tzivanidis, C. Investigation of a nanofluid-based compound parabolic trough solar collector under laminar flow conditions. Applied Thermal Engineering 2019, 149, 366\u2013376. https:\/\/doi.org\/10.1016\/j.applthermaleng.2018.12.077<\/a><\/p>

Bellos, E.; Tzivanidis, C. Multi-objective optimization of a solar-assisted heat pump driven by hybrid PV.
Applied Thermal Engineering 2019, 149, 528\u2013535. https:\/\/doi.org\/10.1016\/j.applthermaleng.2018.12.059<\/a><\/p>

Bellos, E.; Tzivanidis, C. Investigation of a booster secondary reflector for a parabolic trough solar collector.
Solar Energy 2019, 179, 174\u2013185. https:\/\/doi.org\/10.1016\/j.solener.2018.12.071<\/a><\/p>

Mitsopoulos, G.; Syngounas, E.; Tsimpoukis, D.; Bellos, E.; Tzivanidis, C.; Anagnostatos, S. Annual performance of a supermarket refrigeration system using different configurations with CO\u2082 refrigerant.
Energy Conversion and Management: X 2019, 1, 100006. https:\/\/doi.org\/10.1016\/j.ecmx.2019.100006<\/a><\/p>

Bellos, E.; Tzivanidis, C.; Papadopoulos, A. Enhancing the performance of a linear Fresnel reflector using nanofluids and internal finned absorber. Journal of Thermal Analysis and Calorimetry 2019, 135, 237\u2013255.
https:\/\/doi.org\/10.1007\/s10973-018-6989-1<\/a><\/p>

Bellos, E.; Tzivanidis, C. Thermal efficiency enhancement of nanofluid-based parabolic trough collectors.
Journal of Thermal Analysis and Calorimetry 2019, 135, 597\u2013608. https:\/\/doi.org\/10.1007\/s10973-018-7056-7<\/a><\/p>

Bellos, E.; Tzivanidis, C. Investigation of a nanofluid-based concentrating thermal photovoltaic with a parabolic reflector. Energy Conversion and Management 2019, 180, 171\u2013182. https:\/\/doi.org\/10.1016\/j.enconman.2018.11.008<\/a><\/p>

Bellos, E.; Tzivanidis, C. A review of concentrating solar thermal collectors with and without nanofluids.
Journal of Thermal Analysis and Calorimetry 2019, 135, 763\u2013786. https:\/\/doi.org\/10.1007\/s10973-018-7183-1<\/a><\/p>

Bellos, E.; Tzivanidis, C. A comparative study of CO\u2082 refrigeration systems. Energy Conversion and Management: X 2019, 1, 100002. https:\/\/doi.org\/10.1016\/j.ecmx.2018.100002<\/a><\/p>

Korres, D.; Tzivanidis, C. Thermal analysis of a serpentine flat plate collector and investigation of the flow and convection regime. Thermal Science 2019, 23, 47\u201359. https:\/\/doi.org\/10.2298\/TSCI161130172K<\/a><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t\t

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Braimakis, K.; Karellas, S. Exergetic optimization of double-stage organic Rankine cycle (ORC).
Energy 2018, 149, 296\u2013313. https:\/\/doi.org\/10.1016\/j.energy.2018.02.044<\/a><\/span><\/p>

Braimakis, K.; Karellas, S. Energetic optimization of regenerative organic Rankine cycle (ORC) configurations. Energy Conversion and Management 2018, 159, 353\u2013370. https:\/\/doi.org\/10.1016\/j.enconman.2017.12.093<\/a><\/span><\/p>

Staub, S.; Bazan, P.; Braimakis, K.; M\u00fcller, D.; Regensburger, C.; Scharrer, D.; Schmitt, B.; Steger, D.; German, R.; Karellas, S.; Pruckner, M.; Schl\u00fccker, E.; Will, S.; Karl, J. Reversible heat pump\u2013organic Rankine cycle systems for the storage of renewable electricity. Energies 2018, 11, 1352. https:\/\/doi.org\/10.3390\/en11061352<\/a><\/span><\/p>

Bellos, E.; Tzivanidis, C. Investigation of the environmentally-friendly refrigerant R152a for air conditioning purposes. Applied Sciences 2018, 8, 119. https:\/\/doi.org\/10.3390\/app9010119<\/a><\/span><\/p>

Plytaria, M.T.; Tzivanidis, C.; Bellos, E.; Alexopoulos, I.; Antonopoulos, K.A. Thermal behavior of a building with incorporated phase change materials in the south and the north wall. Computation 2018, 7, 2.
https:\/\/doi.org\/10.3390\/computation7010002<\/a><\/span><\/p>

Mitsopoulos, G.; Bellos, E.; Tzivanidis, C. Parametric analysis and multi-objective optimization of a solar heating system for various building envelopes. Thermal Science and Engineering Progress 2018, 8, 307\u2013317. https:\/\/doi.org\/10.1016\/j.tsep.2018.09.007<\/a><\/span><\/p>

Korres, D.; Tzivanidis, C. A new mini-CPC with a U-type evacuated tube under thermal and optical investigation. Renewable Energy 2018, 128, 529\u2013540. https:\/\/doi.org\/10.1016\/j.renene.2017.06.054<\/a><\/span><\/p>

Bellos, E.; Theodosiou, I.-C.; Vellios, L.; Tzivanidis, C. Investigation of a novel solar-driven refrigeration system with ejector. Thermal Science and Engineering Progress 2018, 8, 284\u2013295. https:\/\/doi.org\/10.1016\/j.tsep.2018.09.005<\/a><\/span><\/p>

Plytaria, M.T.; Tzivanidis, C.; Bellos, E.; Antonopoulos, K.A. Energetic investigation of solar-assisted heat pump underfloor heating systems with and without phase change materials. Energy Conversion and Management 2018, 173, 626\u2013639. https:\/\/doi.org\/10.1016\/j.enconman.2018.08.010<\/a><\/span><\/p>

Bellos, E.; Vellios, L.; Theodosiou, I.-C.; Tzivanidis, C. Investigation of a solar\u2013biomass polygeneration system. Energy Conversion and Management 2018, 173, 283\u2013295. https:\/\/doi.org\/10.1016\/j.enconman.2018.07.093<\/a><\/span><\/p>

Bellos, E.; Tzivanidis, C.; Papadopoulos, A. Daily, monthly and yearly performance of a linear Fresnel reflector. Solar Energy 2018, 173, 517\u2013529. https:\/\/doi.org\/10.1016\/j.solener.2018.08.008<\/a><\/span><\/p>

Bellos, E.; Tzivanidis, C. Development of analytical expressions for the incident angle modifiers of a linear Fresnel reflector. Solar Energy 2018, 173, 769\u2013779. https:\/\/doi.org\/10.1016\/j.solener.2018.08.019<\/a><\/span><\/p>

Bellos, E.; Daniil, I.; Tzivanidis, C. Multiple cylindrical inserts for parabolic trough solar collector.
Applied Thermal Engineering 2018, 143, 80\u201389. https:\/\/doi.org\/10.1016\/j.applthermaleng.2018.07.086<\/a><\/span><\/p>

Mitsopoulos, G.; Bellos, E.; Tzivanidis, C. Financial and energetic optimization of Greek buildings insulation. Designs 2018, 2, 34. https:\/\/doi.org\/10.3390\/designs2030034<\/a><\/span><\/p>

Bellos, E.; Tzivanidis, C.; Torosian, K. Energetic, exergetic and financial evaluation of a solar-driven trigeneration system. Thermal Science and Engineering Progress 2018, 7, 99\u2013106. https:\/\/doi.org\/10.1016\/j.tsep.2018.06.001<\/a><\/span><\/p>

Bellos, E.; Tzivanidis, C.; Papadopoulos, A. Secondary concentrator optimization of a linear Fresnel reflector using Bezier polynomial parametrization. Solar Energy 2018, 171, 716\u2013727.
https:\/\/doi.org\/10.1016\/j.solener.2018.07.025<\/a><\/span><\/p>

Bellos, E.; Tzivanidis, C. Assessment of linear solar concentrating technologies for Greek climate.
Energy Conversion and Management 2018, 171, 1502\u20131513. https:\/\/doi.org\/10.1016\/j.enconman.2018.06.076<\/a><\/span><\/p>

Bellos, E.; Said, Z.; Tzivanidis, C. The use of nanofluids in solar concentrating technologies: A comprehensive review. Journal of Cleaner Production 2018, 196, 84\u201399.
https:\/\/doi.org\/10.1016\/j.jclepro.2018.06.048<\/a><\/span><\/p>

Bellos, E.; Tzivanidis, C.; Tsimpoukis, D. Enhancing the performance of parabolic trough collectors using nanofluids and turbulators. Renewable and Sustainable Energy Reviews 2018, 91, 358\u2013375. https:\/\/doi.org\/10.1016\/j.rser.2018.03.091<\/a><\/span><\/p>

Bellos, E.; Tzivanidis, C. Investigation of a star flow insert in a parabolic trough solar collector.
Applied Energy 2018, 224, 86\u2013102. https:\/\/doi.org\/10.1016\/j.apenergy.2018.04.099<\/a><\/span><\/p>

Bellos, E.; Tzivanidis, C. Development of an analytical model for the daily performance of solar thermal systems with experimental validation. Sustainable Energy Technologies and Assessments 2018, 28, 22\u201329.
https:\/\/doi.org\/10.1016\/j.seta.2018.05.003<\/a><\/span><\/p>

Bellos, E.; Daniil, I.; Tzivanidis, C. Energetic and financial optimization of solar heat industrial process with parabolic trough collectors. Designs 2018, 2, 24. https:\/\/doi.org\/10.3390\/designs2030024<\/a><\/span><\/p>

Bellos, E.; Tzivanidis, C. Parametric analysis and optimization of a cooling system with ejector\u2013absorption chiller powered by solar parabolic trough collectors. Energy Conversion and Management 2018, 168, 329\u2013342. https:\/\/doi.org\/10.1016\/j.enconman.2018.05.024<\/a><\/span><\/p>

Bellos, E.; Tzivanidis, C.; Tsimpoukis, D. Optimum number of internal fins in parabolic trough collectors.
Applied Thermal Engineering 2018, 137, 669\u2013677. https:\/\/doi.org\/10.1016\/j.applthermaleng.2018.04.037<\/a><\/span><\/p>

Bellos, E.; Tzivanidis, C. Energetic and exergetic evaluation of a novel trigeneration system driven by parabolic trough solar collectors. Thermal Science and Engineering Progress 2018, 6, 41\u201347.
https:\/\/doi.org\/10.1016\/j.tsep.2018.03.008<\/a><\/span><\/p>

Bellos, E.; Tzivanidis, C. Enhancing the performance of evacuated and non-evacuated parabolic trough collectors using twisted tape inserts, perforated plate inserts and internally finned absorber.
Energies 2018, 11, 1129. https:\/\/doi.org\/10.3390\/en11051129<\/a><\/span><\/p>

Tsekouras, P.; Tzivanidis, C.; Antonopoulos, K. Optical and thermal investigation of a linear Fresnel collector with trapezoidal cavity receiver. Applied Thermal Engineering 2018, 135, 379\u2013388.
https:\/\/doi.org\/10.1016\/j.applthermaleng.2018.02.082<\/a><\/span><\/p>

Loni, R.; Pavlovic, S.; Bellos, E.; Tzivanidis, C.; Asli-Ardeh, E.A. Thermal and exergy performance of a nanofluid-based solar dish collector with spiral cavity receiver. Applied Thermal Engineering 2018, 135, 206\u2013217. https:\/\/doi.org\/10.1016\/j.applthermaleng.2018.02.070<\/a><\/span><\/p>

Bellos, E.; Tzivanidis, C. Thermal analysis of parabolic trough collector operating with mono and hybrid nanofluids. Sustainable Energy Technologies and Assessments 2018, 26, 105\u2013115. https:\/\/doi.org\/10.1016\/j.seta.2017.10.005<\/a><\/span><\/p>

Bellos, E.; Tzivanidis, C. Multi-objective optimization of a solar-driven trigeneration system.
Energy 2018, 149, 47\u201362. https:\/\/doi.org\/10.1016\/j.energy.2018.02.054<\/a><\/span><\/p>

Bellos, E.; Tzivanidis, C. Analytical expression of parabolic trough solar collector performance.
Designs 2018, 2, 9. https:\/\/doi.org\/10.3390\/designs2010009<\/a><\/span><\/p>

Bellos, E.; Tzivanidis, C.; Papadopoulos, A. Optical and thermal analysis of a linear Fresnel reflector operating with thermal oil, molten salt and liquid sodium. Applied Thermal Engineering 2018, 133, 70\u201380.
https:\/\/doi.org\/10.1016\/j.applthermaleng.2018.01.038<\/a><\/span><\/p>

Bellos, E.; Tzivanidis, C. Multi-criteria evaluation of a nanofluid-based linear Fresnel solar collector.
Solar Energy 2018, 163, 200\u2013214. https:\/\/doi.org\/10.1016\/j.solener.2018.02.007<\/a><\/span><\/p>

Bellos, E.; Tzivanidis, C. Assessment of the thermal enhancement methods in parabolic trough collectors.
International Journal of Energy and Environmental Engineering 2018, 9, 59\u201370. https:\/\/doi.org\/10.1007\/s40095-017-0255-3<\/a><\/span><\/p>

Stefanovic, V.P.; Pavlovic, S.R.; Bellos, E.; Tzivanidis, C. A detailed parametric analysis of a solar dish collector. Sustainable Energy Technologies and Assessments 2018, 25, 99\u2013110. https:\/\/doi.org\/10.1016\/j.seta.2017.12.005<\/a><\/span><\/p>

Bellos, E.; Tzivanidis, C. Performance analysis and optimization of an absorption chiller driven by nanofluid-based solar flat plate collector. Journal of Cleaner Production 2018, 174, 256\u2013272.
https:\/\/doi.org\/10.1016\/j.jclepro.2017.10.313<\/a><\/span><\/p>

Bellos, E.; Tzivanidis, C. A realistic approach of the maximum work extraction from solar thermal collectors. Applied Sciences 2018, 8, 6. https:\/\/doi.org\/10.3390\/asi1010006<\/a><\/span><\/p>

Bellos, E.; Tzivanidis, C.; Tsimpoukis, D. Thermal, hydraulic and exergetic evaluation of a parabolic trough collector operating with thermal oil and molten salt-based nanofluids. Energy Conversion and Management 2018, 156, 388\u2013402. https:\/\/doi.org\/10.1016\/j.enconman.2017.11.051<\/a><\/span><\/p>

Bellos, E.; Tzivanidis, C. Investigation of a hybrid ORC driven by waste heat and solar energy.
Energy Conversion and Management 2018, 156, 427\u2013439. https:\/\/doi.org\/10.1016\/j.enconman.2017.11.058<\/a><\/span><\/p>

Bellos, E.; Pavlovic, S.R.; Vasiljevi\u0107, D.; Stefanovic, V.P.; Tzivanidis, C. Experimental and numerical investigation of a triple-dish solar concentrator: A thermal and exergy study. International Journal of Exergy 2018, 26, 481. https:\/\/doi.org\/10.1504\/IJEX.2018.093191<\/a><\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t\t

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2017 <\/div><\/span>\n\t\t\t\t\t\t\t\n\t\t\t<\/path><\/svg><\/span>\n\t\t\t<\/path><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t
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Braimakis, K.; Karellas, S. Integrated thermo-economic optimization of standard and regenerative ORC for different heat source types and capacities. Energy 2017, 121, 570\u2013598. https:\/\/doi.org\/10.1016\/j.energy.2017.01.042<\/a><\/span><\/p>

Braimakis, K.; Thimo, A.; Karellas, S. Techno-economic analysis and comparison of a solar-based biomass ORC\u2013VCC system and a PV heat pump for domestic trigeneration. Journal of Energy Engineering 2017, 143, 04016048. https:\/\/doi.org\/10.1061\/(ASCE)EY.1943-7897.0000397<\/a><\/span><\/p>

Han, X.; Karellas, S.; Liu, M.; Braimakis, K.; Chen, W.; Yan, J.; et al. Integration of organic Rankine cycle with lignite flue gas pre-drying for waste heat and water recovery from dryer exhaust gas: Thermodynamic and economic analysis. Energy Procedia 2017, 105, 1614\u20131621. https:\/\/doi.org\/10.1016\/j.egypro.2017.03.518<\/a><\/span><\/p>

Roumpedakis, T.C.; Chapaloglou, S.; Pallis, P.; Leontaritis, A.-D.; Braimakis, K.; Karellas, S.; Vourliotis, P.
Experimental investigation and CFD analysis of heat transfer in single-phase subcooler of a small-scale waste heat recovery ORC. Energy Procedia 2017, 129, 487\u2013494. https:\/\/doi.org\/10.1016\/j.egypro.2017.09.166<\/a><\/span><\/p>

Bellos, E.; Tzivanidis, C.; Belessiotis, V. Daily performance of parabolic trough solar collectors.
Solar Energy 2017, 158, 663\u2013678. https:\/\/doi.org\/10.1016\/j.solener.2017.10.038<\/a><\/span><\/p>

Bellos, E.; Tzivanidis, C. Yearly performance of a hybrid PV operating with nanofluid.
Renewable Energy 2017, 113, 867\u2013884. https:\/\/doi.org\/10.1016\/j.renene.2017.06.060<\/a><\/span><\/p>

Bellos, E.; Tzivanidis, C. Parametric investigation of supercritical carbon dioxide utilization in parabolic trough collectors. Applied Thermal Engineering 2017, 127, 736\u2013747. https:\/\/doi.org\/10.1016\/j.applthermaleng.2017.08.032<\/a><\/span><\/p>

Bellos, E.; Tzivanidis, C. Parametric analysis and optimization of an organic Rankine cycle with nanofluid-based solar parabolic trough collectors. Renewable Energy 2017, 114, 1376\u20131393. https:\/\/doi.org\/10.1016\/j.renene.2017.06.055<\/a><\/span><\/p>

Bellos, E.; Tzivanidis, C. Optimum design of a solar ejector refrigeration system for various operating scenarios. Energy Conversion and Management 2017, 154, 11\u201324. https:\/\/doi.org\/10.1016\/j.enconman.2017.10.057<\/a><\/span><\/p>

Bellos, E.; Tzivanidis, C.; Tsimpoukis, D. Thermal enhancement of parabolic trough collector with internally finned absorbers. Solar Energy 2017, 157, 514\u2013531. https:\/\/doi.org\/10.1016\/j.solener.2017.08.067<\/a><\/span><\/p>

Bellos, E.; Tzivanidis, C.; Tsimpoukis, D. Multi-criteria evaluation of parabolic trough collector with internally finned absorbers. Applied Energy 2017, 205, 540\u2013561. https:\/\/doi.org\/10.1016\/j.apenergy.2017.07.141<\/a><\/span><\/p>

Bellos, E.; Tzivanidis, C.; Daniil, I. Thermal and exergetic evaluation of parabolic trough collectors with finned absorbers operating with air. Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy 2017, 231, 631\u2013644. https:\/\/doi.org\/10.1177\/0957650917712403<\/a><\/span><\/p>

Bellos, E.; Tzivanidis, C. Energetic and financial analysis of solar cooling systems with single-effect absorption chiller in various climates. Applied Thermal Engineering 2017, 126, 809\u2013821.
https:\/\/doi.org\/10.1016\/j.applthermaleng.2017.08.005<\/a><\/span><\/p>

Bellos, E.; Tzivanidis, C. A detailed exergetic analysis of parabolic trough collectors. Energy Conversion and Management 2017, 149, 275\u2013292. https:\/\/doi.org\/10.1016\/j.enconman.2017.07.035<\/a><\/span><\/p>

Bellos, E.; Vrachopoulos, M.Gr.; Tzivanidis, C. Energetic and exergetic investigation of a novel solar-assisted mechanical compression refrigeration system. Energy Conversion and Management 2017, 147, 1\u201318. https:\/\/doi.org\/10.1016\/j.enconman.2017.05.040<\/a><\/span><\/p>

Bellos, E.; Tzivanidis, C.; Tsifis, G. Energetic, exergetic, economic and environmental (4E) analysis of a solar-assisted refrigeration system for various operating scenarios. Energy Conversion and Management 2017, 148, 1055\u20131069. https:\/\/doi.org\/10.1016\/j.enconman.2017.06.063<\/a><\/span><\/p>

Bellos, E.; Tzivanidis, C.; Pavlovic, S.; Stefanovic, V. Thermodynamic investigation of LiCl\u2013H\u2082O working pair in a double-effect absorption chiller driven by parabolic trough collectors. Thermal Science and Engineering Progress 2017, 3, 75\u201387. https:\/\/doi.org\/10.1016\/j.tsep.2017.06.005<\/a><\/span><\/p>

Bellos, E.; Tzivanidis, C. Parametric analysis and optimization of a solar-driven trigeneration system based on ORC and absorption heat pump. Journal of Cleaner Production 2017, 161, 493\u2013509.
https:\/\/doi.org\/10.1016\/j.jclepro.2017.05.159<\/a><\/span><\/p>

Bellos, E.; Tzivanidis, C. Energetic and financial sustainability of solar-assisted heat pump heating systems in Europe. Sustainable Cities and Society 2017, 33, 70\u201384. https:\/\/doi.org\/10.1016\/j.scs.2017.05.020<\/a><\/span><\/p>

Pavlovic, S.; Bellos, E.; Le Roux, W.G.; Stefanovic, V.; Tzivanidis, C. Experimental investigation and parametric analysis of a solar thermal dish collector with spiral absorber. Applied Thermal Engineering 2017, 121, 126\u2013135. https:\/\/doi.org\/10.1016\/j.applthermaleng.2017.04.068<\/a><\/span><\/p>

Bellos, E.; Tzivanidis, C. Optimization of a solar-driven trigeneration system with nanofluid-based parabolic trough collectors. Energies 2017, 10, 848. https:\/\/doi.org\/10.3390\/en10070848<\/a><\/span><\/p>

Pavlovic, S.; Bellos, E.; Stefanovic, V.; Tzivanidis, C. Optimum geometry of parabolic trough collectors with optical and thermal criteria. International Review of Applied Sciences and Engineering 2017, 8, 45\u201350.
https:\/\/doi.org\/10.1556\/1848.2017.8.1.7<\/a><\/span><\/p>

Bellos, E.; Tzivanidis, C.; Daniil, I. Energetic and exergetic investigation of a parabolic trough collector with internal fins operating with carbon dioxide. International Journal of Energy and Environmental Engineering 2017, 8, 109\u2013122. https:\/\/doi.org\/10.1007\/s40095-017-0229-5<\/a><\/span><\/p>

Bellos, E.; Tzivanidis, C. Parametric investigation of nanofluids utilization in parabolic trough collectors.
Thermal Science and Engineering Progress 2017, 2, 71\u201379. https:\/\/doi.org\/10.1016\/j.tsep.2017.05.001<\/a><\/span><\/p>

Bellos, E.; Tzivanidis, C.; Antonopoulos, K.A. Parametric analysis and optimization of a solar-assisted gas turbine. Energy Conversion and Management 2017, 139, 151\u2013165. https:\/\/doi.org\/10.1016\/j.enconman.2017.02.042<\/a><\/span><\/p>

Bellos, E.; Tzivanidis, C.; Symeou, C.; Antonopoulos, K.A. Energetic, exergetic and financial evaluation of a solar-driven absorption chiller: A dynamic approach. Energy Conversion and Management 2017, 137, 34\u201348. https:\/\/doi.org\/10.1016\/j.enconman.2017.01.041<\/a><\/span><\/p>

Bellos, E.; Tzivanidis, C.; Daniil, I.; Antonopoulos, K.A. The impact of internal longitudinal fins in parabolic trough collectors operating with gases. Energy Conversion and Management 2017, 135, 35\u201354.
https:\/\/doi.org\/10.1016\/j.enconman.2016.12.057<\/a><\/span><\/p>

Bellos, E.; Tzivanidis, C.; Antonopoulos, K.A. A detailed working fluid investigation for solar parabolic trough collectors. Applied Thermal Engineering 2017, 114, 374\u2013386.
https:\/\/doi.org\/10.1016\/j.applthermaleng.2016.11.201<\/a><\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t\t

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Karellas, S.; Braimakis, K. Energy\u2013exergy analysis and economic investigation of a cogeneration and trigeneration ORC\u2013VCC hybrid system utilizing biomass fuel and solar power. Energy Conversion and Management 2016, 107, 103\u2013113. https:\/\/doi.org\/10.1016\/j.enconman.2015.06.080<\/a><\/span><\/p>

Kalogirou, S.A.; Karellas, S.; Badescu, V.; Braimakis, K. Exergy analysis on solar thermal systems: A better understanding of their sustainability. Renewable Energy 2016, 85, 1328\u20131333.
https:\/\/doi.org\/10.1016\/j.renene.2015.05.037<\/a><\/span><\/p>

Kalogirou, S.A.; Karellas, S.; Braimakis, K.; Stanciu, C.; Badescu, V. Exergy analysis of solar thermal collectors and processes. Progress in Energy and Combustion Science 2016, 56, 106\u2013137.
https:\/\/doi.org\/10.1016\/j.pecs.2016.05.002<\/a><\/span><\/p>

Bellos, E.; Tzivanidis, C.; Zisopoulou, E.; Mitsopoulos, G.; Antonopoulos, K.A. An innovative Trombe wall as a passive heating system for a building in Athens\u2014a comparison with the conventional Trombe wall and the insulated wall. Energy and Buildings 2016, 133, 754\u2013769. https:\/\/doi.org\/10.1016\/j.enbuild.2016.10.035<\/a><\/span><\/p>

Bellos, E.; Mathioulakis, E.; Tzivanidis, C.; Belessiotis, V.; Antonopoulos, K.A. Experimental and numerical investigation of a linear Fresnel solar collector with flat plate receiver. Energy Conversion and Management 2016, 130, 44\u201359. https:\/\/doi.org\/10.1016\/j.enconman.2016.10.041<\/a><\/span><\/p>

Bellos, E.; Tzivanidis, C.; Antonopoulos, K.A. Parametric investigation and optimization of an innovative trigeneration system. Energy Conversion and Management 2016, 127, 515\u2013525. https:\/\/doi.org\/10.1016\/j.enconman.2016.09.044<\/a><\/span><\/p>

Tzivanidis, C.; Bellos, E.; Antonopoulos, K.A. Energetic and financial investigation of a stand-alone solar-thermal organic Rankine cycle power plant. Energy Conversion and Management 2016, 126, 421\u2013433.
https:\/\/doi.org\/10.1016\/j.enconman.2016.08.033<\/a><\/span><\/p>

Bellos, E.; Tzivanidis, C.; Antonopoulos, K.A.; Daniil, I. The use of gas working fluids in parabolic trough collectors\u2014an energetic and exergetic analysis. Applied Thermal Engineering 2016, 109, 1\u201314.
https:\/\/doi.org\/10.1016\/j.applthermaleng.2016.08.043<\/a><\/span><\/p>

Tzivanidis, C.; Bellos, E. The use of parabolic trough collectors for solar cooling\u2014a case study for Athens climate. Case Studies in Thermal Engineering 2016, 8, 403\u2013413. https:\/\/doi.org\/10.1016\/j.csite.2016.10.003<\/a><\/span><\/p>

Bellos, E.; Tzivanidis, C.; Antonopoulos, K.A. Exergetic and energetic comparison of LiCl\u2013H\u2082O and LiBr\u2013H\u2082O working pairs in a solar absorption cooling system. Energy Conversion and Management 2016, 123, 453\u2013461. https:\/\/doi.org\/10.1016\/j.enconman.2016.06.068<\/a><\/span><\/p>

Tzivanidis, C.; Bellos, E.; Mitsopoulos, G.; Antonopoulos, K.A.; Delis, A. Energetic and financial evaluation of a solar-assisted heat pump heating system with other usual heating systems in Athens.
Applied Thermal Engineering 2016, 106, 87\u201397. https:\/\/doi.org\/10.1016\/j.applthermaleng.2016.06.004<\/a><\/span><\/p>

Bellos, E.; Tzivanidis, C.; Antonopoulos, K.A.; Gkinis, G. Thermal enhancement of solar parabolic trough collectors by using nanofluids and converging\u2013diverging absorber tube. Renewable Energy 2016, 94, 213\u2013222. https:\/\/doi.org\/10.1016\/j.renene.2016.03.062<\/a><\/span><\/p>

Bellos, E.; Korres, D.; Tzivanidis, C.; Antonopoulos, K.A. Design, simulation and optimization of a compound parabolic collector. Sustainable Energy Technologies and Assessments 2016, 16, 53\u201363.
https:\/\/doi.org\/10.1016\/j.seta.2016.04.005<\/a><\/span><\/p>

Bellos, E.; Tzivanidis, C.; Moschos, K.; Antonopoulos, K.A. Energetic and financial evaluation of solar-assisted heat pump space heating systems. Energy Conversion and Management 2016, 120, 306\u2013319.
https:\/\/doi.org\/10.1016\/j.enconman.2016.05.004<\/a><\/span><\/p>

Bellos, E.; Tzivanidis, C.; Antonopoulos, K.A. Exergetic, energetic and financial evaluation of a solar-driven absorption cooling system with various collector types. Applied Thermal Engineering 2016, 102, 749\u2013759. https:\/\/doi.org\/10.1016\/j.applthermaleng.2016.04.032<\/a><\/span><\/p>

Tsekouras, P.; Drosou, V.; Tzivanidis, C.; Antonopoulos, K.A. Experimental results of a solar absorption cooling plant in Greece. International Journal of Sustainable Energy 2016, 35, 309\u2013322. https:\/\/doi.org\/10.1080\/14786451.2014.899229<\/a><\/span><\/p>

Pavlovic, S.; Bellos, E.; Stefanovic, V.; Tzivanidis, C.; Stamenkovic, Z. Design, simulation and optimization of a solar dish collector with spiral-coil thermal absorber. Thermal Science 2016, 20, 1387\u20131397.
https:\/\/doi.org\/10.2298\/TSCI160213104P<\/a><\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t\t

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Braimakis, K.; Prei\u00dfinger, M.; Br\u00fcggemann, D.; Karellas, S.; Panopoulos, K. Low grade waste heat recovery with subcritical and supercritical organic Rankine cycle based on natural refrigerants and their binary mixtures. Energy 2015, 88, 80\u201392. https:\/\/doi.org\/10.1016\/j.energy.2015.03.092<\/a><\/span><\/p>

Tzivanidis, C.; Bellos, E.; Korres, D.; Antonopoulos, K.A.; Mitsopoulos, G. Thermal and optical efficiency investigation of a parabolic trough collector. Case Studies in Thermal Engineering 2015, 6, 226\u2013237.
https:\/\/doi.org\/10.1016\/j.csite.2015.10.005<\/a><\/span><\/p>

Braimakis, K.; Atsonios, K.; Panopoulos, K.D.; Karellas, S.; Kakaras, E. Economic evaluation of decentralized pyrolysis for the production of bio-oil as an energy carrier for improved logistics towards a large centralized gasification plant. Renewable and Sustainable Energy Reviews 2014, 35, 57\u201372.
https:\/\/doi.org\/10.1016\/j.rser.2014.03.052<\/a><\/span><\/p>

Tzivanidis, C.; Antonopoulos, K.A.; Kravvaritis, E.D. Parametric analysis of space cooling systems based on night ceiling cooling with PCM-embedded piping. International Journal of Energy Research 2012, 36, 18\u201335. https:\/\/doi.org\/10.1002\/er.1777<\/a><\/span><\/p>

Tzivanidis, C.; Antonopoulos, K.A.; Kravvaritis, E.D. Transient three-dimensional numerical solution of night ceiling cooling using PCM-embedded piping. Journal of Energy Engineering 2011, 137, 177\u2013186.
https:\/\/doi.org\/10.1061\/(ASCE)EY.1943-7897.0000048<\/a><\/span><\/p>

Kravvaritis, E.D.; Antonopoulos, K.A.; Tzivanidis, C. Experimental determination of the effective thermal capacity function and other thermal properties for various phase change materials using the thermal delay method. Applied Energy 2011, 88, 4459\u20134469. https:\/\/doi.org\/10.1016\/j.apenergy.2011.05.032<\/a><\/span><\/p>

Tzivanidis, C.; Antonopoulos, K.A.; Gioti, F. Numerical simulation of cooling energy consumption in connection with thermostat operation mode and comfort requirements for the Athens buildings. Applied Energy 2011, 88, 2871\u20132884. https:\/\/doi.org\/10.1016\/j.apenergy.2011.01.050<\/a><\/span><\/p>

Antonopoulos, K.A.; Gioti, F.; Tzivanidis, C. A transient model for the energy analysis of indoor spaces. Applied Energy 2010, 87, 3084\u20133091. https:\/\/doi.org\/10.1016\/j.apenergy.2010.04.002<\/a><\/span><\/p>

Kravvaritis, E.D.; Antonopoulos, K.A.; Tzivanidis, C. Improvements to the measurement of the thermal properties of phase change materials. Measurement Science and Technology 2010, 21, 045103. https:\/\/doi.org\/10.1088\/0957-0233\/21\/4\/045103<\/a><\/span><\/p>

Antonopoulos, K.A.; Vrachopoulos, M.; Tzivanidis, C. Experimental evaluation of energy savings in air-conditioning using metal ceiling panels. Applied Thermal Engineering 1998, 18, 1129\u20131138. https:\/\/doi.org\/10.1016\/S1359-4311(98)00022-2<\/a><\/span><\/p>

Antonopoulos, K.A.; Vrachopoulos, M.; Tzivanidis, C. Experimental and theoretical studies of space cooling using ceiling-embedded piping. Applied Thermal Engineering 1997, 17, 351\u2013367. https:\/\/doi.org\/10.1016\/S1359-4311(96)00040-3<\/a><\/span><\/p>

Antonopoulos, K.A.; Tzivanidis, C.; Vrachopoulos, M. Using orthogonal expansion of functions over multilayer walls for calculating the layer thermal properties. Applied Thermal Engineering 1997, 17, 193\u2013201. https:\/\/doi.org\/10.1016\/S1359-4311(96)00015-4<\/a><\/span><\/p>

Antonopoulos, K.A.; Tzivanidis, C. Numerical solution of unsteady three-dimensional heat transfer during space cooling using ceiling-embedded piping. Energy 1997, 22, 59\u201367. https:\/\/doi.org\/10.1016\/S0360-5442(96)00079-5<\/a><\/span><\/p>

Antonopoulos, K.A.; Tzivanidis, C. Finite-difference prediction of transient indoor temperature and related correlation based on the building time constant. International Journal of Energy Research 1996, 20, 507\u2013520. https:\/\/doi.org\/10.1002\/(SICI)1099-114X(199606)20:6%3C507::AID-ER167%3E3.0.CO;2-T<\/a><\/span><\/p>

Antonopoulos, K.A.; Tzivanidis, C. Analytical solution of boundary value problems of heat conduction in composite regions with arbitrary convection boundary conditions. Acta Mechanica 1996, 118, 65\u201378. https:\/\/doi.org\/10.1007\/BF01410508<\/a><\/span><\/p>

Antonopoulos, K.A.; Tzivanidis, C. A correlation for the thermal delay of buildings. Renewable Energy 1995, 6, 687\u2013699. https:\/\/doi.org\/10.1016\/0960-1481(95)00076-V<\/a><\/span><\/p>

Antonopoulos, K.A.; Tzivanidis, C. Time constant of Greek buildings. Energy 1995, 20, 785\u2013802. https:\/\/doi.org\/10.1016\/0360-5442(95)00015-9<\/a><\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"

Journal Publications Publications in peer reviewed Scientific Journals\u00a0 2026 Ioannidis, D.; Rigopoulos, P.; Braimakis, K.; Pallis, P.; Karellas, S. Multi-objective ANN-driven genetic algorithm optimization of energy efficiency measures in an NZEB multi-family house building in Greece.Energy and Buildings 2026, 351, 116653. https:\/\/doi.org\/10.1016\/j.enbuild.2025.116653 Polychronakis, K.; Korres, D.; Sammoutos, C.; Vidalis, E.; Tzivanidis, C. Frequency domain model […]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-278","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.labracse.gr\/el\/wp-json\/wp\/v2\/pages\/278","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.labracse.gr\/el\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.labracse.gr\/el\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.labracse.gr\/el\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.labracse.gr\/el\/wp-json\/wp\/v2\/comments?post=278"}],"version-history":[{"count":59,"href":"https:\/\/www.labracse.gr\/el\/wp-json\/wp\/v2\/pages\/278\/revisions"}],"predecessor-version":[{"id":2562,"href":"https:\/\/www.labracse.gr\/el\/wp-json\/wp\/v2\/pages\/278\/revisions\/2562"}],"wp:attachment":[{"href":"https:\/\/www.labracse.gr\/el\/wp-json\/wp\/v2\/media?parent=278"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}