{"id":291,"date":"2025-12-23T13:34:03","date_gmt":"2025-12-23T13:34:03","guid":{"rendered":"https:\/\/www.labracse.gr\/?page_id=291"},"modified":"2026-04-28T14:20:57","modified_gmt":"2026-04-28T12:20:57","slug":"conference-papers","status":"publish","type":"page","link":"https:\/\/www.labracse.gr\/el\/conference-papers\/","title":{"rendered":"\u03a0\u03c1\u03b1\u03ba\u03c4\u03b9\u03ba\u03ac \u03a3\u03c5\u03bd\u03b5\u03b4\u03c1\u03af\u03c9\u03bd"},"content":{"rendered":"
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Kitsopoulou, E. Bellos, D.\u00a0Gonidaki, C.\u00a0Sammoutos, P.\u00a0Lykas, E.\u00a0Vidalis, K. Polychronakis, G. Mitsopoulos, C. Tzivanidis, Multi-objective Evaluation of Cooling Passive Building Envelope Technologies for Optimal Thermal Performance and Indoor Comfort, In Proceedings of \u201cInternational Conference ENERGY in BUILDINGS 2025\u201d, 15 November 2025, Athens, Greece<\/p>

Kitsopoulou,\u00a0D.Pallantzas, G. Kosmadakis, C.\u00a0Sammoutos, P.\u00a0Lykas, E.\u00a0Vidalis, D.\u00a0Gonidaki, E. Bellos, C.\u00a0Tzivanidis, Energy and thermal comfort investigation of a passive house building using field monitoring data,\u00a0In Proceedings of \u201cThe 38th<\/sup>International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems\u201d, Paper ID: 7250, 29 June – 4 July, 2025, Paris, France<\/p>

Kitsopoulou, E. Bellos, C.\u00a0Sammoutos, P.\u00a0Lykas, D.\u00a0Gonidaki, E.\u00a0Vidalis, G. Mitsopoulos, C. Tzivanidis, Development of a simplified comfort evaluation tool for multi-objective evaluation analysis of building energy retrofit strategies, In Proceedings of \u201cAlternative Energy Sources, Materials & Technologies – (AESMT\u201925)\u201d, 13 – 14\u00a0May,\u00a02025, Sofia, Bulgaria<\/p>

Bellos, C. Sammoutos, P. Lykas, A. Kitsopoulou, A. Arabkoohsar, C. Tzivanidis, I. Alexopoulos. A mini\u2011review of industrial waste sources, efficiency enhancement techniques, and heat upgrade solutions with an emphasis on thermochemical processes. In Proceedings of \u201cThe 37th International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems (ECOS 2024)\u201d, pp. 2066\u20132077, 30\u202fJune\u202f\u2013\u202f5\u202fJuly, 2024, Rhodes, Greece.<\/p>

Bellos, P. Lykas, A. Kitsopoulou, C. Sammoutos, I. Alexopoulos, A. Arabkoohsar, C. Tzivanidis. Thermodynamic analysis of a solar\u2011driven absorption heat transformer for industrial process heat. In Proceedings of \u201cThe 37th International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems (ECOS 2024)\u201d, pp. 2078\u20132089, 30\u202fJune\u202f\u2013\u202f5\u202fJuly, 2024, Rhodes, Greece.<\/p>

Alexopoulos, C. Tzivanidis, V. Papaefthimiou, P. Lykas. Thermochemical energy storage using CaCO\u2083\/CaO simulation of the charging and discharging process. In Proceedings of \u201cThe 37th International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems (ECOS 2024)\u201d, pp. 2185\u20132194, 30\u202fJune\u202f\u2013\u202f5\u202fJuly, 2024, Rhodes, Greece.<\/p>

Kitsopoulou, E. Bellos, P. Lykas, C. Sammoutos, M. Gr. Vrachopoulos, C. Tzivanidis, \u03a3\u03c5\u03c3\u03c4\u03b7\u03bc\u03b1\u03c4\u03b9\u03ba\u03ae \u03b1\u03bd\u03ac\u03bb\u03c5\u03c3\u03b7 \u03b5\u03bd\u03c3\u03c9\u03bc\u03ac\u03c4\u03c9\u03c3\u03b7\u03c2 \u03c5\u03bb\u03b9\u03ba\u03ce\u03bd PCM \u03ba\u03b1\u03b9 \u03bf\u03c0\u03c4\u03b9\u03ba\u03ac \u03c0\u03c1\u03bf\u03b7\u03b3\u03bc\u03ad\u03bd\u03c9\u03bd \u03b5\u03c0\u03b9\u03c3\u03c4\u03c1\u03ce\u03c3\u03b5\u03c9\u03bd \u03bf\u03c1\u03bf\u03c6\u03ae\u03c2 \u03b3\u03b9\u03b1 \u03ad\u03bd\u03b1 \u03c4\u03c5\u03c0\u03b9\u03ba\u03cc \u03ba\u03c4\u03af\u03c1\u03b9\u03bf \u03c3\u03c4\u03b7\u03bd \u0391\u03b8\u03ae\u03bd\u03b1 \/ (A systematic analysis of PCM and optically advanced roof coatings integration for Athenian climatic conditions), In Proceedings of \u201c13th<\/sup>\u00a0National Conference of soft energy sources\u201d, 15-17 May 2024, Athens, Greece\u00a0<\/p>

Sammoutos, P. Lykas, A. Kitsopoulou, E. Bellos, C. Tzivanidis, \u039c\u03bf\u03bd\u03c4\u03b5\u03bb\u03bf\u03c0\u03bf\u03af\u03b7\u03c3\u03b7 \u03c3\u03c5\u03b3\u03ba\u03b5\u03bd\u03c4\u03c1\u03c9\u03c4\u03b9\u03ba\u03bf\u03cd \u03b7\u03bb\u03b9\u03b1\u03ba\u03bf\u03cd \u03c3\u03c5\u03c3\u03c4\u03ae\u03bc\u03b1\u03c4\u03bf\u03c2 \u03bc\u03b5 \u03ba\u03b5\u03bd\u03c4\u03c1\u03b9\u03ba\u03cc \u03b4\u03ad\u03ba\u03c4\u03b7 \u03c3\u03b5 \u03c3\u03c5\u03bd\u03b4\u03c5\u03b1\u03c3\u03bc\u03cc \u03bc\u03b5 \u03ba\u03cd\u03ba\u03bb\u03bf Brayton \u03c5\u03c0\u03b5\u03c1\u03ba\u03c1\u03af\u03c3\u03b9\u03bc\u03bf\u03c5 CO2<\/sub>\u00a0\/ (Dynamic modeling of a solar central receiver coupled to a supercritical brayton power cycle), In Proceedings of \u201c13th<\/sup>\u00a0National Conference of soft energy sources\u201d, 15-17 May 2024, Athens, Greece\u00a0<\/p>

Lykas, A. Kitsopoulou, E. Bellos, C. Tzivanidis, Investigation of a solar-driven cogeneration unit for power and hydrogen production via Aspen plus software, In Proceedings of \u201cInternational Journal of Polygeneration 2023\u201d, 26-28 July 2023, Kuta, Bali, Indonesia<\/p>

Lykas, A. Kitsopoulou, E. Bellos, C. Tzivanidis, Parametric investigation of a CO2-based polygeneration system driven by renewable energy sources, In Proceedings of \u201cInternational Journal of Polygeneration 2023\u201d, 26-28 July 2023, Kuta, Bali, Indonesia<\/p>

Pavlovic, E. Bellos, M.\u00a0Grozdanovic, V. Stefanovic, M. Vukic, M. Lakovic-Paunovic, C. Tzivanidis, Dynamic analysis of a solar dish concentrating collector coupled to an organic Rankine cycle with reheating, In Proceedings of \u201c20th<\/sup>International Conference on Thermal Science and Engineering of Serbia\u201d, 169-176, 18-21 October 2022,\u00a0Ni\u0161, Serbia<\/p>

Bellos, C. Tzivanidis, Polygeneration systems driven by renewable energy sources \u2013 A critical mini review for the units with organic Rankine cycles, In Proceedings of \u201c6th<\/sup>International Conference on Polygeneration\u201d, 351-359, 4-6 October 2021 Zaragoza, Spain<\/p>

Bellos, C. Tzivanidis,\u00a0Yearly\u00a0dynamic investigation of a solar-trigeneration unit in Athens by using TRNSYS software, In Proceedings of \u201c6th<\/sup>International Conference on Polygeneration\u201d, 360-370, 4-6 October 2021 Zaragoza, Spain<\/p>

Pavlovic, E. Bellos, V. Stefanovic, M. Ilic, M.\u00a0Grozdanovic, C. Tzivanidis, The use flat plate collectors in a pumped thermal energy storage latent system,\u00a0\u0399n\u00a0Proceedings of \u201c15th<\/sup>International Conference on Accomplishments in Mechanical and Industrial Engineering – (DEMI 2021)\u201d, 210-215, 28-29 May 2021, Banja Luka, Bosnia and Herzegovina<\/p>

Pavlovic, V. Stefanovic, E. Bellos, C. Tzivanidis, Solar Thermal Collector Efficiency Map: A New Evaluation Tool,\u00a0\u0399n\u00a0Proceedings of \u201cThe 5th<\/sup>International conference mechanical engineering in XXI century – (MASING)\u201d, 43-46, 9-10 December 2020, Faculty of Mechanical Engineering in Nis, Serbia<\/p>

Alexopoulos, C. Tzivanidis. Simulation of the operation of a heat tank with phase change materials (PCM). In Proceedings of \u201cThe 32nd International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems (ECOS 2019)\u201d, pp. 2483\u20132494, 23\u202f\u2013\u202f28\u202fJune, 2019, Wroc\u0142aw, Poland.<\/p>

Pavlovic, E. Bellos, V. Stefanovic, M. Lakovic, B.\u00a0Drobnjakovic, C. Tzivanidis, Energy and Exergy Design of a Solar Thermal System with Phase Change Materials, \u0399n Proceedings of \u201c19th<\/sup>Conference on Thermal Science and Engineering of Serbia – (Simterm\u00a02019)\u201d, 269-278, 22\u201325 October 2019,\u00a0Sokobanja, Serbia<\/p>

A.C. Montenon, P. Tsekouras, C. Tzivanidis, M. Bibron, C. Papanicolas. Thermo\u2011optical modelling of the linear Fresnel collector at the Cyprus Institute. In AIP Conference Proceedings<\/em>, p. 100004, 2019, Casablanca, Morocco.<\/p>

Bellos, C. Tzivanidis, N. Nikolaou, G. Mitsopoulos, Yearly Performance of a Cogeneration System with Nanofluid-based Thermal Photovoltaic Coupled to a Heat Pump, In Proceedings of \u201cEinB2018 – 7th<\/sup>International Conference ENERGY in BUILDINGS 2018\u201d, 115-124, 3 November 2018, Athens, Greece<\/p>

M.Th.\u00a0Plytaria, C. Tzivanidis, E. Bellos, I. Alexopoulos, K.A. Antonopoulos, The impact of phase change materials in the heating and the cooling loads of a building, In Proceedings of \u201c8th<\/sup>\u00a0International Conference from Scientific Computing to Computational Engineering\u201d, Vol. II, 386-395, 4-7 July 2018 Athens, Greece\u00a0<\/p>

Mitsopoulos, E. Syngounas, E. Bellos, C. Tzivanidis, S. Anagnostatos. Experimental and numerical evaluation of a supermarket refrigeration system. In Proceedings of \u201cThe 31st International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems (ECOS 2018)\u201d, 17\u202f\u2013\u202f22\u202fJune, 2018, Guimar\u00e3es, Portugal.<\/p>

Mitsopoulos, E. Bellos, C. Tzivanidis, S. Anagnostatos, E. Papanikolaou. Multi\u2011criteria evaluation of a solar assisted heating system for various building envelopes. In Proceedings of \u201cThe 31st International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems (ECOS 2018)\u201d, 17\u202f\u2013\u202f22\u202fJune, 2018, Guimar\u00e3es, Portugal.<\/p>

D.N. Korres, C. Tzivanidis, C. Lindos. Thermal investigation of a new flat plate collector with a coaxial flow tube. In Proceedings of \u201cThe 31st International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems (ECOS 2018)\u201d, 17\u202f\u2013\u202f22\u202fJune, 2018, Guimar\u00e3es, Portugal.<\/p>

D.N. Korres, C. Tzivanidis. Simulation and optimization of an experimentally analyzed compound parabolic collector. In Proceedings of \u201cThe 31st International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems (ECOS 2018)\u201d, 17\u202f\u2013\u202f22\u202fJune, 2018, Guimar\u00e3es, Portugal.<\/p>

Alexopoulos, T. Christos, M.Th. Plytaria. The impact of fins on the operation of a heat tank with phase change materials (PCM). In Proceedings of \u201cThe 31st International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems (ECOS 2018)\u201d, 17\u202f\u2013\u202f22\u202fJune, 2018, Guimar\u00e3es, Portugal.<\/p>

M.Th.\u00a0Plytaria, C.\u00a0Tzivanidis, I. Alexopoulos, E. Bellos, K.A. Antonopoulos, Application of Phase Change Materials on the underfloor heating system of a building in Athens using TRNSYS simulation software, In Proceedings of \u201cThe 31st<\/sup>\u00a0International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems\u201d, 17-22 June 2018, Guimaraes, Portugal\u00a0\u00a0<\/p>

Pavlovic, E. Bellos, V. Stefanovic, C.\u00a0Tzivanidis, Comparison of a conical and a spiral absorber for a solar dish collector, in Proceedings of \u201c10th<\/sup>International Symposium on Exploitation of Renewable Energy\u00a0Sourses\u00a0and Efficiency\u201d, 39-44, 5-7 April 2018, Subotica, Serbia<\/p>

Bellos, C. Tzivanidis, G. Tsifis, E\u03bd\u03b5\u03c1\u03b3\u03b5\u03b9\u03b1\u03ba\u03ae, \u03b5\u03be\u03b5\u03c1\u03b3\u03b5\u03b9\u03b1\u03ba\u03ae \u03ba\u03b1\u03b9 \u03bf\u03b9\u03ba\u03bf\u03bd\u03bf\u03bc\u03b9\u03ba\u03ae \u03b1\u03be\u03b9\u03bf\u03bb\u03cc\u03b3\u03b7\u03c3\u03b7 \u03b5\u03bd\u03cc\u03c2 \u03ba\u03bb\u03b9\u03bc\u03b1\u03ba\u03bf\u03b5\u03b9\u03b4\u03bf\u03cd\u03c2 \u03c3\u03c5\u03c3\u03c4\u03ae\u03bc\u03b1\u03c4\u03bf\u03c2 (cascade) \u03b1\u03c0\u03bf\u03c1\u03c1\u03cc\u03c6\u03b7\u03c3\u03b7\u03c2-\u03bc\u03b7\u03c7\u03b1\u03bd\u03b9\u03ba\u03ae\u03c2 \u03c3\u03c5\u03bc\u03c0\u03af\u03b5\u03c3\u03b7\u03c2 \u03bc\u03b5 \u03c7\u03c1\u03ae\u03c3\u03b7 \u03b7\u03bb\u03b9\u03b1\u03ba\u03ae\u03c2 \u03b5\u03bd\u03ad\u03c1\u03b3\u03b5\u03b9\u03b1\u03c2 \/ (Energetic, Exergetic and financial evaluation of a cascade absorption-compression refrigeration system driven by solar energy), In Proceedings of \u201c11th<\/sup>National Conference of soft energy sources\u201d, Vol. \u0392(2), 907-918, 14-16 March 2018, Thessaloniki, Greece<\/p>

E. Bellos, C. Tzivanidis, \u0395\u03c4\u03ae\u03c3\u03b9\u03b1 \u03b5\u03bd\u03b5\u03c1\u03b3\u03b5\u03b9\u03b1\u03ba\u03ae \u03ba\u03b1\u03b9 \u03b5\u03be\u03b5\u03c1\u03b3\u03b5\u03b9\u03b1\u03ba\u03ae \u03b1\u03c0\u03cc\u03b4\u03bf\u03c3\u03b7\u00a0 \u03b8\u03b5\u03c1\u03bc\u03bf\u03c6\u03c9\u03c4\u03bf\u03b2\u03bf\u03bb\u03c4\u03b1\u03ca\u03ba\u03bf\u03cd \u03c3\u03c5\u03bb\u03bb\u03ad\u03ba\u03c4\u03b7 \u03bc\u03b5 \u03c7\u03c1\u03ae\u03c3\u03b7 \u03bd\u03b1\u03bd\u03bf\u03c1\u03b5\u03c5\u03c3\u03c4\u03bf\u03cd \/ (Energetic and exergetic evaluation of a hybrid PV operating with nanofluids in yearly basis), In Proceedings of \u201c11th National Conference of soft energy sources\u201d, Vol. \u0392(2), 1193-1203, 14-16 March 2018, Thessaloniki, Greece<\/p>

Mitsopoulos, E. Bellos, C.\u00a0Tzivanidis, The insulation thickness as a design parameter in Greek climate, In Proceedings of \u201cEinB2017 \u2013 6th<\/sup>International Conference ENERGY in BUILDINGS 2017\u201d, 99-108, 12 October 2017, Athens, Greece\u00a0<\/p>

Bellos, C.\u00a0Tzivanidis, Thermodynamic Investigation of an Innovative Solar Driven Trigeneration System Ideal for the Building Sector, In Proceedings of \u201cEinB2017 – 6th<\/sup>International Conference ENERGY in BUILDINGS 2017\u201d, 109-118, 12 October 2017, Athens, Greece<\/p>

Plytaria, C.\u00a0Tzivanidis, E. Bellos, K.A. Antonopoulos, Thermal analysis of a building in Athens with phase change materials in roof using simulation program TRNSYS 17, In Proceedings of \u201c7th<\/sup>International Conference on Experiments\/Process\/System Modelling\/Simulation\/Optimization\u201d, Vol. II, 509-518, 5-8 July 2017, Athens, Greece\u00a0<\/p>

Bellos, C.\u00a0Tzivanidis, M.\u00a0Plytaria, Analytical Expression for Thermal Efficiency Coefficients of Parabolic\u00a0\u03a4rough\u00a0Collectors, In Proceedings of \u201c7th<\/sup>International Conference on Experiments\/Process\/System Modelling\/Simulation\/Optimization\u201d, Vol. I, 67-74, 5-8 July 2017 Athens, Greece<\/p>

Pavlovic, E. Bellos, V. Stefanovic, C.\u00a0Tzivanidis, Experimental and numerical investigation of a solar dish collector with spiral absorber, In\u00a0Proceedings of \u201c13th<\/sup>International Conference on Accomplishments in Mechanical and Industrial Engineering – (DEMI 2017)\u201d, 217-225, 26-27 May 2017, Banja Luka, Bosnia and Herzegovina<\/p>

Tzinnis, E. Bellos, C.\u00a0Tzivanidis, Parametric Analysis of a Solar Cooling system Designed for Athens Climate, In Proceedings of \u201cEinB2016 – 5th<\/sup>International Conference ENERGY in BUILDINGS 2016\u201d, 119-130, 12 November 2016, Athens, Greece\u00a0<\/p>

Bellos, C.\u00a0Tzivanidis, K.A. Antonopoulos, Solar\u00a0assisted\u00a0heat pump space heating systems in Athens – An energetic and financial analysis, In Proceedings of \u201cEinB2016 – 5th<\/sup>International Conference ENERGY in BUILDINGS 2016\u201d, 41-48, 12 November 2016, Athens, Greece<\/p>

Alexopoulos, C.\u00a0Tzivanidis, E. Bellos, G. Mitsopoulos, D.\u00a0Korres, Thermal Behavior of a Building Simulation using COMSOL, In Proceedings of \u201c7th<\/sup>International Conference from Scientific Computing to Computational Engineering\u201d, Vol. II, 409-413, 6-9 July 2016, Athens, Greece<\/p>

Mitsopoulos, E. Bellos, C.\u00a0Tzivanidis, I. Alexopoulos, D.\u00a0Korres, The Impact of Insulation Thickness in Various Greek Cities, In Proceedings of \u201c7th<\/sup>International Conference from Scientific Computing to Computational Engineering\u201d, Vol. II, 385-394, 6-9 July 2016, Athens, Greece<\/p>

Bellos, C.\u00a0Tzivanidis, G. Mitsopoulos, I. Alexopoulos, Energetic,\u00a0Exergetic\u00a0and Financial Evaluation of Concentrating and No-Concentrating Solar Collectors, In Proceedings of \u201c7th<\/sup>International Conference from Scientific Computing to Computational Engineering\u201d, Vol. I, 138-146, 6-9 July 2016, Athens, Greece<\/p>

Korres, C. Tzivanidis. Thermal analysis of an entire flat plate collector with a serpentine flow system and determination of the water and air flow and convection regime. In Proceedings of \u201cThe 29th International Conference on Efficiency, Cost, Optimisation, Simulation and Environmental Impact of Energy Systems (ECOS 2016)\u201d, 19\u202f\u2013\u202f23\u202fJune, 2016, Portoro\u017e, Slovenia.<\/p>

Korres, C. Tzivanidis. Optical and thermal analysis of a new U\u2011type evacuated tube collector with a mini\u2011compound parabolic concentrator and a cylindrical absorber. In Proceedings of \u201cThe 29th International Conference on Efficiency, Cost, Optimisation, Simulation and Environmental Impact of Energy Systems (ECOS 2016)\u201d, 19\u202f\u2013\u202f23\u202fJune, 2016, Portoro\u017e, Slovenia.<\/p>

Tzivanidis, S. Zoi, A. John. Simulation of a heat tank with phase change materials (PCM). In Proceedings of \u201cThe 29th International Conference on Efficiency, Cost, Optimisation, Simulation and Environmental Impact of Energy Systems (ECOS 2016)\u201d, 19\u202f\u2013\u202f23\u202fJune, 2016, Portoro\u017e, Slovenia.<\/p>

Tzivanidis, S. Zoi, A. John. Simulation of a heat exchanger. In Proceedings of \u201cThe 29th International Conference on Efficiency, Cost, Optimisation, Simulation and Environmental Impact of Energy Systems (ECOS 2016)\u201d, 19\u202f\u2013\u202f23\u202fJune, 2016, Portoro\u017e, Slovenia.<\/p>

Bellos, C.\u00a0Tzivanidis, K.A. Antonopoulos\u00a0Optical Performance and Optimization of Two Stationary Compound Parabolic Collectors (CPC), In Proceedings of \u201cWorld Congress on Momentum, Heat and Mass Transfer (MHMT\u201916)\u201d,\u00a0paper no. 101, 4-5\u00a0April 2016, Prague, Czech Republic<\/p>

Bellos, C.\u00a0Tzivanidis, N. Zervas, G. Mitsopoulos, K.A. Antonopoulos, Energetic and Financial Comparison between a 1-Stage Absorption Chiller Driven by FPC and a 2-Stage Absorption Chiller Driven by PTC, In Proceedings of \u201cWorld Congress on Momentum, Heat and Mass Transfer (MHMT\u201916)\u201d, paper no. 102, 4-5 April 2016, Prague, Czech Republic\u00a0<\/p>

Bellos, C.\u00a0Tzivanidis, K.A. Antonopoulos, Comparison of two solar driven absorption chillers for air-conditioning in Greece, In Proceedings of \u201c6th<\/sup>International Conference on Experiments\/Process\/System Modelling\/Simulation\/Optimization\u201d, Vol. I, 133-140, 8-11 July 2015, Athens, Greece<\/p>

Bellos, C.\u00a0Tzivanidis, K.A. Antonopoulos, Thermal performance of a direct-flow coaxial evacuated tube with\u00a0solidworks\u00a0flow simulation, In Proceedings of \u201c6th<\/sup>International Conference on Experiments\/Process\/System Modelling\/Simulation\/Optimization\u201d, Vol. II, 505-513, 8-11 July 2015, Athens, Greece<\/p>

Bellos, C. Tzivanidis, D. Korres, K.A. Antonopoulos. Thermal analysis of a flat plate collector with Solidworks and determination of convection heat coefficient between water and absorber. In Proceedings of \u201cThe 28th International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems (ECOS 2015)\u201d, 30\u202fJune\u202f\u2013\u202f3\u202fJuly, 2015, Pau, France.<\/p>

Bellos, C. Tzivanidis, A. Delis, K.A. Antonopoulos. Comparison of a solar driven heat pump heating system with other typical heating systems with TRNSYS. In Proceedings of \u201cThe 28th International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems (ECOS 2015)\u201d, 30\u202fJune\u202f\u2013\u202f3\u202fJuly, 2015, Pau, France.<\/p>

Bellos, C.\u00a0Tzivanidis, A. Prassas, K.A. Antonopoulos, Modelling of a solar assisted\u00a0heating system with TRNSYS, In proceedings of \u201cGlobal Conference on Global Warming GCGW-15\u201d, 24-27 May 2015, Athens, Greece<\/p>

Bellos, C.\u00a0Tzivanidis,\u00a0A.\u00a0Kouvari, K.A.\u00a0Antonopoulos, Comparison of heating and cooling loads of a typical building with TRNSYS and\u00a0Equest, In proceedings of \u201cGlobal Conference on Global Warming GCGW-15\u201d, 24-27 May 2015, Athens, Greece\u00a0<\/p>

Tzivanidis, E. Bellos, Parametric analysis of Phase Change Materials in buildings, In Proceedings of \u201c6th<\/sup>International Conference from Scientific Computing to Computational Engineering\u201d, Vol. II, 405-413, 9-12 July 2014, Athens, Greece\u00a0<\/p>

Bellos, C.\u00a0Tzivanidis, I.\u00a0Touris, Effect of thermal mass in the cooling\u00a0and heating loads of buildings, In Proceedings of \u201c6th<\/sup>International Conference from Scientific Computing to Computational Engineering\u201d, Vol. I, 161-168, 9-12 July 2014, Athens, Greece<\/p>

Tzivanidis,\u00a0E. Bellos, Parametric analysis of a solar refrigeration system with parabolic trough collectors (PTC), In Proceedings of \u201cMaterial and renewable energy Conference \u2013 (MRE)\u201d,\u00a01-3 July 2013, Athens, Greece<\/p>

Tzivanidis, E. Bellos,\u00a0Economotechnical\u00a0comparison of\u00a0Photovoltaic collectors and Solar thermal collectors for a roof in Athens, In Proceedings of \u201cMaterial and renewable energy Conference \u2013 (MRE)\u201d,\u00a01-3 July 2013, Athens, Greece\u00a0<\/p>

Tzivanidis, K.A. Antonopoulos, E.D. Kravvaritis. Effects of insulation and phase change materials (PCM) combinations on the energy consumption for buildings indoor thermal comfort. In Proceedings of \u201c25th International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems (ECOS 2012)\u201d, pp. 119\u2013133, 26\u202f\u2013\u202f29\u202fJune, 2012, Perugia, Italy.<\/p>

Tzivanidis, K.A. Antonopoulos, F. Gioti. Adjustment of envelopes characteristics to climatic conditions for saving heating and cooling energy in buildings. In Proceedings of \u201c25th International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems (ECOS 2012)\u201d, pp. 24\u201339, 26\u202f\u2013\u202f29\u202fJune, 2012, Perugia, Italy.<\/p>

Tzivanidis, K.A. Antonopoulos, E.D. Kravvaritis. Numerical evaluation of the degree of phase change materials exploitation in building passive solar heating and cooling. In Proceedings of \u201c24th International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems (ECOS 2011)\u201d, pp. 2007\u20132022, 4\u202f\u2013\u202f7\u202fJuly, 2011, Novi Sad, Serbia.<\/p>

Tzivanidis, K.A. Antonopoulos, F. Gioti. Computational analysis of the envelope parameters effects on the transient heating energy consumption of buildings. In Proceedings of \u201c24th International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems (ECOS 2011)\u201d, pp. 1894\u20131908, 4\u202f\u2013\u202f7\u202fJuly, 2011, Novi Sad, Serbia<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t

\n\t\t\t\t\t\t\t\t\t

Kitsopoulou, E. Bellos, D.\u00a0Gonidaki, C.\u00a0Sammoutos, P.\u00a0Lykas, E.\u00a0Vidalis, K. Polychronakis, G. Mitsopoulos, C. Tzivanidis, Multi-objective Evaluation of Cooling Passive Building Envelope Technologies for Optimal Thermal Performance and Indoor Comfort, In Proceedings of \u201cInternational Conference ENERGY in BUILDINGS 2025\u201d, 15 November 2025, Athens, Greece<\/p>

Kitsopoulou,\u00a0D.Pallantzas, G. Kosmadakis, C.\u00a0Sammoutos, P.\u00a0Lykas, E.\u00a0Vidalis, D.\u00a0Gonidaki, E. Bellos, C.\u00a0Tzivanidis, Energy and thermal comfort investigation of a passive house building using field monitoring data,\u00a0In Proceedings of \u201cThe 38th<\/sup>International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems\u201d, Paper ID: 7250, 29 June – 4 July, 2025, Paris, France<\/p>

Kitsopoulou, E. Bellos, C.\u00a0Sammoutos, P.\u00a0Lykas, D.\u00a0Gonidaki, E.\u00a0Vidalis, G. Mitsopoulos, C. Tzivanidis, Development of a simplified comfort evaluation tool for multi-objective evaluation analysis of building energy retrofit strategies, In Proceedings of \u201cAlternative Energy Sources, Materials & Technologies – (AESMT\u201925)\u201d, 13 – 14\u00a0May,\u00a02025, Sofia, Bulgaria<\/p>

Bellos, C. Sammoutos, P. Lykas, A. Kitsopoulou, A. Arabkoohsar, C. Tzivanidis, I. Alexopoulos. A mini\u2011review of industrial waste sources, efficiency enhancement techniques, and heat upgrade solutions with an emphasis on thermochemical processes. In Proceedings of \u201cThe 37th International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems (ECOS 2024)\u201d, pp. 2066\u20132077, 30\u202fJune\u202f\u2013\u202f5\u202fJuly, 2024, Rhodes, Greece.<\/p>

Bellos, P. Lykas, A. Kitsopoulou, C. Sammoutos, I. Alexopoulos, A. Arabkoohsar, C. Tzivanidis. Thermodynamic analysis of a solar\u2011driven absorption heat transformer for industrial process heat. In Proceedings of \u201cThe 37th International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems (ECOS 2024)\u201d, pp. 2078\u20132089, 30\u202fJune\u202f\u2013\u202f5\u202fJuly, 2024, Rhodes, Greece.<\/p>

Alexopoulos, C. Tzivanidis, V. Papaefthimiou, P. Lykas. Thermochemical energy storage using CaCO\u2083\/CaO simulation of the charging and discharging process. In Proceedings of \u201cThe 37th International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems (ECOS 2024)\u201d, pp. 2185\u20132194, 30\u202fJune\u202f\u2013\u202f5\u202fJuly, 2024, Rhodes, Greece.<\/p>

Kitsopoulou, E. Bellos, P. Lykas, C. Sammoutos, M. Gr. Vrachopoulos, C. Tzivanidis, \u03a3\u03c5\u03c3\u03c4\u03b7\u03bc\u03b1\u03c4\u03b9\u03ba\u03ae \u03b1\u03bd\u03ac\u03bb\u03c5\u03c3\u03b7 \u03b5\u03bd\u03c3\u03c9\u03bc\u03ac\u03c4\u03c9\u03c3\u03b7\u03c2 \u03c5\u03bb\u03b9\u03ba\u03ce\u03bd PCM \u03ba\u03b1\u03b9 \u03bf\u03c0\u03c4\u03b9\u03ba\u03ac \u03c0\u03c1\u03bf\u03b7\u03b3\u03bc\u03ad\u03bd\u03c9\u03bd \u03b5\u03c0\u03b9\u03c3\u03c4\u03c1\u03ce\u03c3\u03b5\u03c9\u03bd \u03bf\u03c1\u03bf\u03c6\u03ae\u03c2 \u03b3\u03b9\u03b1 \u03ad\u03bd\u03b1 \u03c4\u03c5\u03c0\u03b9\u03ba\u03cc \u03ba\u03c4\u03af\u03c1\u03b9\u03bf \u03c3\u03c4\u03b7\u03bd \u0391\u03b8\u03ae\u03bd\u03b1 \/ (A systematic analysis of PCM and optically advanced roof coatings integration for Athenian climatic conditions), In Proceedings of \u201c13th<\/sup>\u00a0National Conference of soft energy sources\u201d, 15-17 May 2024, Athens, Greece\u00a0<\/p>

Sammoutos, P. Lykas, A. Kitsopoulou, E. Bellos, C. Tzivanidis, \u039c\u03bf\u03bd\u03c4\u03b5\u03bb\u03bf\u03c0\u03bf\u03af\u03b7\u03c3\u03b7 \u03c3\u03c5\u03b3\u03ba\u03b5\u03bd\u03c4\u03c1\u03c9\u03c4\u03b9\u03ba\u03bf\u03cd \u03b7\u03bb\u03b9\u03b1\u03ba\u03bf\u03cd \u03c3\u03c5\u03c3\u03c4\u03ae\u03bc\u03b1\u03c4\u03bf\u03c2 \u03bc\u03b5 \u03ba\u03b5\u03bd\u03c4\u03c1\u03b9\u03ba\u03cc \u03b4\u03ad\u03ba\u03c4\u03b7 \u03c3\u03b5 \u03c3\u03c5\u03bd\u03b4\u03c5\u03b1\u03c3\u03bc\u03cc \u03bc\u03b5 \u03ba\u03cd\u03ba\u03bb\u03bf Brayton \u03c5\u03c0\u03b5\u03c1\u03ba\u03c1\u03af\u03c3\u03b9\u03bc\u03bf\u03c5 CO2<\/sub>\u00a0\/ (Dynamic modeling of a solar central receiver coupled to a supercritical brayton power cycle), In Proceedings of \u201c13th<\/sup>\u00a0National Conference of soft energy sources\u201d, 15-17 May 2024, Athens, Greece\u00a0<\/p>

Lykas, A. Kitsopoulou, E. Bellos, C. Tzivanidis, Investigation of a solar-driven cogeneration unit for power and hydrogen production via Aspen plus software, In Proceedings of \u201cInternational Journal of Polygeneration 2023\u201d, 26-28 July 2023, Kuta, Bali, Indonesia<\/p>

Lykas, A. Kitsopoulou, E. Bellos, C. Tzivanidis, Parametric investigation of a CO2-based polygeneration system driven by renewable energy sources, In Proceedings of \u201cInternational Journal of Polygeneration 2023\u201d, 26-28 July 2023, Kuta, Bali, Indonesia<\/p>

Pavlovic, E. Bellos, M.\u00a0Grozdanovic, V. Stefanovic, M. Vukic, M. Lakovic-Paunovic, C. Tzivanidis, Dynamic analysis of a solar dish concentrating collector coupled to an organic Rankine cycle with reheating, In Proceedings of \u201c20th<\/sup>International Conference on Thermal Science and Engineering of Serbia\u201d, 169-176, 18-21 October 2022,\u00a0Ni\u0161, Serbia<\/p>

Bellos, C. Tzivanidis, Polygeneration systems driven by renewable energy sources \u2013 A critical mini review for the units with organic Rankine cycles, In Proceedings of \u201c6th<\/sup>International Conference on Polygeneration\u201d, 351-359, 4-6 October 2021 Zaragoza, Spain<\/p>

Bellos, C. Tzivanidis,\u00a0Yearly\u00a0dynamic investigation of a solar-trigeneration unit in Athens by using TRNSYS software, In Proceedings of \u201c6th<\/sup>International Conference on Polygeneration\u201d, 360-370, 4-6 October 2021 Zaragoza, Spain<\/p>

Pavlovic, E. Bellos, V. Stefanovic, M. Ilic, M.\u00a0Grozdanovic, C. Tzivanidis, The use flat plate collectors in a pumped thermal energy storage latent system,\u00a0\u0399n\u00a0Proceedings of \u201c15th<\/sup>International Conference on Accomplishments in Mechanical and Industrial Engineering – (DEMI 2021)\u201d, 210-215, 28-29 May 2021, Banja Luka, Bosnia and Herzegovina<\/p>

Pavlovic, V. Stefanovic, E. Bellos, C. Tzivanidis, Solar Thermal Collector Efficiency Map: A New Evaluation Tool,\u00a0\u0399n\u00a0Proceedings of \u201cThe 5th<\/sup>International conference mechanical engineering in XXI century – (MASING)\u201d, 43-46, 9-10 December 2020, Faculty of Mechanical Engineering in Nis, Serbia<\/p>

Alexopoulos, C. Tzivanidis. Simulation of the operation of a heat tank with phase change materials (PCM). In Proceedings of \u201cThe 32nd International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems (ECOS 2019)\u201d, pp. 2483\u20132494, 23\u202f\u2013\u202f28\u202fJune, 2019, Wroc\u0142aw, Poland.<\/p>

Pavlovic, E. Bellos, V. Stefanovic, M. Lakovic, B.\u00a0Drobnjakovic, C. Tzivanidis, Energy and Exergy Design of a Solar Thermal System with Phase Change Materials, \u0399n Proceedings of \u201c19th<\/sup>Conference on Thermal Science and Engineering of Serbia – (Simterm\u00a02019)\u201d, 269-278, 22\u201325 October 2019,\u00a0Sokobanja, Serbia<\/p>

A.C. Montenon, P. Tsekouras, C. Tzivanidis, M. Bibron, C. Papanicolas. Thermo\u2011optical modelling of the linear Fresnel collector at the Cyprus Institute. In AIP Conference Proceedings<\/em>, p. 100004, 2019, Casablanca, Morocco.<\/p>

Bellos, C. Tzivanidis, N. Nikolaou, G. Mitsopoulos, Yearly Performance of a Cogeneration System with Nanofluid-based Thermal Photovoltaic Coupled to a Heat Pump, In Proceedings of \u201cEinB2018 – 7th<\/sup>International Conference ENERGY in BUILDINGS 2018\u201d, 115-124, 3 November 2018, Athens, Greece<\/p>

M.Th.\u00a0Plytaria, C. Tzivanidis, E. Bellos, I. Alexopoulos, K.A. Antonopoulos, The impact of phase change materials in the heating and the cooling loads of a building, In Proceedings of \u201c8th<\/sup>\u00a0International Conference from Scientific Computing to Computational Engineering\u201d, Vol. II, 386-395, 4-7 July 2018 Athens, Greece\u00a0<\/p>

Mitsopoulos, E. Syngounas, E. Bellos, C. Tzivanidis, S. Anagnostatos. Experimental and numerical evaluation of a supermarket refrigeration system. In Proceedings of \u201cThe 31st International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems (ECOS 2018)\u201d, 17\u202f\u2013\u202f22\u202fJune, 2018, Guimar\u00e3es, Portugal.<\/p>

Mitsopoulos, E. Bellos, C. Tzivanidis, S. Anagnostatos, E. Papanikolaou. Multi\u2011criteria evaluation of a solar assisted heating system for various building envelopes. In Proceedings of \u201cThe 31st International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems (ECOS 2018)\u201d, 17\u202f\u2013\u202f22\u202fJune, 2018, Guimar\u00e3es, Portugal.<\/p>

D.N. Korres, C. Tzivanidis, C. Lindos. Thermal investigation of a new flat plate collector with a coaxial flow tube. In Proceedings of \u201cThe 31st International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems (ECOS 2018)\u201d, 17\u202f\u2013\u202f22\u202fJune, 2018, Guimar\u00e3es, Portugal.<\/p>

D.N. Korres, C. Tzivanidis. Simulation and optimization of an experimentally analyzed compound parabolic collector. In Proceedings of \u201cThe 31st International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems (ECOS 2018)\u201d, 17\u202f\u2013\u202f22\u202fJune, 2018, Guimar\u00e3es, Portugal.<\/p>

Alexopoulos, T. Christos, M.Th. Plytaria. The impact of fins on the operation of a heat tank with phase change materials (PCM). In Proceedings of \u201cThe 31st International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems (ECOS 2018)\u201d, 17\u202f\u2013\u202f22\u202fJune, 2018, Guimar\u00e3es, Portugal.<\/p>

M.Th.\u00a0Plytaria, C.\u00a0Tzivanidis, I. Alexopoulos, E. Bellos, K.A. Antonopoulos, Application of Phase Change Materials on the underfloor heating system of a building in Athens using TRNSYS simulation software, In Proceedings of \u201cThe 31st<\/sup>\u00a0International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems\u201d, 17-22 June 2018, Guimaraes, Portugal\u00a0\u00a0<\/p>

Pavlovic, E. Bellos, V. Stefanovic, C.\u00a0Tzivanidis, Comparison of a conical and a spiral absorber for a solar dish collector, in Proceedings of \u201c10th<\/sup>International Symposium on Exploitation of Renewable Energy\u00a0Sourses\u00a0and Efficiency\u201d, 39-44, 5-7 April 2018, Subotica, Serbia<\/p>

Bellos, C. Tzivanidis, G. Tsifis, E\u03bd\u03b5\u03c1\u03b3\u03b5\u03b9\u03b1\u03ba\u03ae, \u03b5\u03be\u03b5\u03c1\u03b3\u03b5\u03b9\u03b1\u03ba\u03ae \u03ba\u03b1\u03b9 \u03bf\u03b9\u03ba\u03bf\u03bd\u03bf\u03bc\u03b9\u03ba\u03ae \u03b1\u03be\u03b9\u03bf\u03bb\u03cc\u03b3\u03b7\u03c3\u03b7 \u03b5\u03bd\u03cc\u03c2 \u03ba\u03bb\u03b9\u03bc\u03b1\u03ba\u03bf\u03b5\u03b9\u03b4\u03bf\u03cd\u03c2 \u03c3\u03c5\u03c3\u03c4\u03ae\u03bc\u03b1\u03c4\u03bf\u03c2 (cascade) \u03b1\u03c0\u03bf\u03c1\u03c1\u03cc\u03c6\u03b7\u03c3\u03b7\u03c2-\u03bc\u03b7\u03c7\u03b1\u03bd\u03b9\u03ba\u03ae\u03c2 \u03c3\u03c5\u03bc\u03c0\u03af\u03b5\u03c3\u03b7\u03c2 \u03bc\u03b5 \u03c7\u03c1\u03ae\u03c3\u03b7 \u03b7\u03bb\u03b9\u03b1\u03ba\u03ae\u03c2 \u03b5\u03bd\u03ad\u03c1\u03b3\u03b5\u03b9\u03b1\u03c2 \/ (Energetic, Exergetic and financial evaluation of a cascade absorption-compression refrigeration system driven by solar energy), In Proceedings of \u201c11th<\/sup>National Conference of soft energy sources\u201d, Vol. \u0392(2), 907-918, 14-16 March 2018, Thessaloniki, Greece<\/p>

E. Bellos, C. Tzivanidis, \u0395\u03c4\u03ae\u03c3\u03b9\u03b1 \u03b5\u03bd\u03b5\u03c1\u03b3\u03b5\u03b9\u03b1\u03ba\u03ae \u03ba\u03b1\u03b9 \u03b5\u03be\u03b5\u03c1\u03b3\u03b5\u03b9\u03b1\u03ba\u03ae \u03b1\u03c0\u03cc\u03b4\u03bf\u03c3\u03b7\u00a0 \u03b8\u03b5\u03c1\u03bc\u03bf\u03c6\u03c9\u03c4\u03bf\u03b2\u03bf\u03bb\u03c4\u03b1\u03ca\u03ba\u03bf\u03cd \u03c3\u03c5\u03bb\u03bb\u03ad\u03ba\u03c4\u03b7 \u03bc\u03b5 \u03c7\u03c1\u03ae\u03c3\u03b7 \u03bd\u03b1\u03bd\u03bf\u03c1\u03b5\u03c5\u03c3\u03c4\u03bf\u03cd \/ (Energetic and exergetic evaluation of a hybrid PV operating with nanofluids in yearly basis), In Proceedings of \u201c11th National Conference of soft energy sources\u201d, Vol. \u0392(2), 1193-1203, 14-16 March 2018, Thessaloniki, Greece<\/p>

Mitsopoulos, E. Bellos, C.\u00a0Tzivanidis, The insulation thickness as a design parameter in Greek climate, In Proceedings of \u201cEinB2017 \u2013 6th<\/sup>International Conference ENERGY in BUILDINGS 2017\u201d, 99-108, 12 October 2017, Athens, Greece\u00a0<\/p>

Bellos, C.\u00a0Tzivanidis, Thermodynamic Investigation of an Innovative Solar Driven Trigeneration System Ideal for the Building Sector, In Proceedings of \u201cEinB2017 – 6th<\/sup>International Conference ENERGY in BUILDINGS 2017\u201d, 109-118, 12 October 2017, Athens, Greece<\/p>

Plytaria, C.\u00a0Tzivanidis, E. Bellos, K.A. Antonopoulos, Thermal analysis of a building in Athens with phase change materials in roof using simulation program TRNSYS 17, In Proceedings of \u201c7th<\/sup>International Conference on Experiments\/Process\/System Modelling\/Simulation\/Optimization\u201d, Vol. II, 509-518, 5-8 July 2017, Athens, Greece\u00a0<\/p>

Bellos, C.\u00a0Tzivanidis, M.\u00a0Plytaria, Analytical Expression for Thermal Efficiency Coefficients of Parabolic\u00a0\u03a4rough\u00a0Collectors, In Proceedings of \u201c7th<\/sup>International Conference on Experiments\/Process\/System Modelling\/Simulation\/Optimization\u201d, Vol. I, 67-74, 5-8 July 2017 Athens, Greece<\/p>

Pavlovic, E. Bellos, V. Stefanovic, C.\u00a0Tzivanidis, Experimental and numerical investigation of a solar dish collector with spiral absorber, In\u00a0Proceedings of \u201c13th<\/sup>International Conference on Accomplishments in Mechanical and Industrial Engineering – (DEMI 2017)\u201d, 217-225, 26-27 May 2017, Banja Luka, Bosnia and Herzegovina<\/p>

Tzinnis, E. Bellos, C.\u00a0Tzivanidis, Parametric Analysis of a Solar Cooling system Designed for Athens Climate, In Proceedings of \u201cEinB2016 – 5th<\/sup>International Conference ENERGY in BUILDINGS 2016\u201d, 119-130, 12 November 2016, Athens, Greece\u00a0<\/p>

Bellos, C.\u00a0Tzivanidis, K.A. Antonopoulos, Solar\u00a0assisted\u00a0heat pump space heating systems in Athens – An energetic and financial analysis, In Proceedings of \u201cEinB2016 – 5th<\/sup>International Conference ENERGY in BUILDINGS 2016\u201d, 41-48, 12 November 2016, Athens, Greece<\/p>

Alexopoulos, C.\u00a0Tzivanidis, E. Bellos, G. Mitsopoulos, D.\u00a0Korres, Thermal Behavior of a Building Simulation using COMSOL, In Proceedings of \u201c7th<\/sup>International Conference from Scientific Computing to Computational Engineering\u201d, Vol. II, 409-413, 6-9 July 2016, Athens, Greece<\/p>

Mitsopoulos, E. Bellos, C.\u00a0Tzivanidis, I. Alexopoulos, D.\u00a0Korres, The Impact of Insulation Thickness in Various Greek Cities, In Proceedings of \u201c7th<\/sup>International Conference from Scientific Computing to Computational Engineering\u201d, Vol. II, 385-394, 6-9 July 2016, Athens, Greece<\/p>

Bellos, C.\u00a0Tzivanidis, G. Mitsopoulos, I. Alexopoulos, Energetic,\u00a0Exergetic\u00a0and Financial Evaluation of Concentrating and No-Concentrating Solar Collectors, In Proceedings of \u201c7th<\/sup>International Conference from Scientific Computing to Computational Engineering\u201d, Vol. I, 138-146, 6-9 July 2016, Athens, Greece<\/p>

Korres, C. Tzivanidis. Thermal analysis of an entire flat plate collector with a serpentine flow system and determination of the water and air flow and convection regime. In Proceedings of \u201cThe 29th International Conference on Efficiency, Cost, Optimisation, Simulation and Environmental Impact of Energy Systems (ECOS 2016)\u201d, 19\u202f\u2013\u202f23\u202fJune, 2016, Portoro\u017e, Slovenia.<\/p>

Korres, C. Tzivanidis. Optical and thermal analysis of a new U\u2011type evacuated tube collector with a mini\u2011compound parabolic concentrator and a cylindrical absorber. In Proceedings of \u201cThe 29th International Conference on Efficiency, Cost, Optimisation, Simulation and Environmental Impact of Energy Systems (ECOS 2016)\u201d, 19\u202f\u2013\u202f23\u202fJune, 2016, Portoro\u017e, Slovenia.<\/p>

Tzivanidis, S. Zoi, A. John. Simulation of a heat tank with phase change materials (PCM). In Proceedings of \u201cThe 29th International Conference on Efficiency, Cost, Optimisation, Simulation and Environmental Impact of Energy Systems (ECOS 2016)\u201d, 19\u202f\u2013\u202f23\u202fJune, 2016, Portoro\u017e, Slovenia.<\/p>

Tzivanidis, S. Zoi, A. John. Simulation of a heat exchanger. In Proceedings of \u201cThe 29th International Conference on Efficiency, Cost, Optimisation, Simulation and Environmental Impact of Energy Systems (ECOS 2016)\u201d, 19\u202f\u2013\u202f23\u202fJune, 2016, Portoro\u017e, Slovenia.<\/p>

Bellos, C.\u00a0Tzivanidis, K.A. Antonopoulos\u00a0Optical Performance and Optimization of Two Stationary Compound Parabolic Collectors (CPC), In Proceedings of \u201cWorld Congress on Momentum, Heat and Mass Transfer (MHMT\u201916)\u201d,\u00a0paper no. 101, 4-5\u00a0April 2016, Prague, Czech Republic<\/p>

Bellos, C.\u00a0Tzivanidis, N. Zervas, G. Mitsopoulos, K.A. Antonopoulos, Energetic and Financial Comparison between a 1-Stage Absorption Chiller Driven by FPC and a 2-Stage Absorption Chiller Driven by PTC, In Proceedings of \u201cWorld Congress on Momentum, Heat and Mass Transfer (MHMT\u201916)\u201d, paper no. 102, 4-5 April 2016, Prague, Czech Republic\u00a0<\/p>

Bellos, C.\u00a0Tzivanidis, K.A. Antonopoulos, Comparison of two solar driven absorption chillers for air-conditioning in Greece, In Proceedings of \u201c6th<\/sup>International Conference on Experiments\/Process\/System Modelling\/Simulation\/Optimization\u201d, Vol. I, 133-140, 8-11 July 2015, Athens, Greece<\/p>

Bellos, C.\u00a0Tzivanidis, K.A. Antonopoulos, Thermal performance of a direct-flow coaxial evacuated tube with\u00a0solidworks\u00a0flow simulation, In Proceedings of \u201c6th<\/sup>International Conference on Experiments\/Process\/System Modelling\/Simulation\/Optimization\u201d, Vol. II, 505-513, 8-11 July 2015, Athens, Greece<\/p>

Bellos, C. Tzivanidis, D. Korres, K.A. Antonopoulos. Thermal analysis of a flat plate collector with Solidworks and determination of convection heat coefficient between water and absorber. In Proceedings of \u201cThe 28th International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems (ECOS 2015)\u201d, 30\u202fJune\u202f\u2013\u202f3\u202fJuly, 2015, Pau, France.<\/p>

Bellos, C. Tzivanidis, A. Delis, K.A. Antonopoulos. Comparison of a solar driven heat pump heating system with other typical heating systems with TRNSYS. In Proceedings of \u201cThe 28th International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems (ECOS 2015)\u201d, 30\u202fJune\u202f\u2013\u202f3\u202fJuly, 2015, Pau, France.<\/p>

Bellos, C.\u00a0Tzivanidis, A. Prassas, K.A. Antonopoulos, Modelling of a solar assisted\u00a0heating system with TRNSYS, In proceedings of \u201cGlobal Conference on Global Warming GCGW-15\u201d, 24-27 May 2015, Athens, Greece<\/p>

Bellos, C.\u00a0Tzivanidis,\u00a0A.\u00a0Kouvari, K.A.\u00a0Antonopoulos, Comparison of heating and cooling loads of a typical building with TRNSYS and\u00a0Equest, In proceedings of \u201cGlobal Conference on Global Warming GCGW-15\u201d, 24-27 May 2015, Athens, Greece\u00a0<\/p>

Tzivanidis, E. Bellos, Parametric analysis of Phase Change Materials in buildings, In Proceedings of \u201c6th<\/sup>International Conference from Scientific Computing to Computational Engineering\u201d, Vol. II, 405-413, 9-12 July 2014, Athens, Greece\u00a0<\/p>

Bellos, C.\u00a0Tzivanidis, I.\u00a0Touris, Effect of thermal mass in the cooling\u00a0and heating loads of buildings, In Proceedings of \u201c6th<\/sup>International Conference from Scientific Computing to Computational Engineering\u201d, Vol. I, 161-168, 9-12 July 2014, Athens, Greece<\/p>

Tzivanidis,\u00a0E. Bellos, Parametric analysis of a solar refrigeration system with parabolic trough collectors (PTC), In Proceedings of \u201cMaterial and renewable energy Conference \u2013 (MRE)\u201d,\u00a01-3 July 2013, Athens, Greece<\/p>

Tzivanidis, E. Bellos,\u00a0Economotechnical\u00a0comparison of\u00a0Photovoltaic collectors and Solar thermal collectors for a roof in Athens, In Proceedings of \u201cMaterial and renewable energy Conference \u2013 (MRE)\u201d,\u00a01-3 July 2013, Athens, Greece\u00a0<\/p>

Tzivanidis, K.A. Antonopoulos, E.D. Kravvaritis. Effects of insulation and phase change materials (PCM) combinations on the energy consumption for buildings indoor thermal comfort. In Proceedings of \u201c25th International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems (ECOS 2012)\u201d, pp. 119\u2013133, 26\u202f\u2013\u202f29\u202fJune, 2012, Perugia, Italy.<\/p>

Tzivanidis, K.A. Antonopoulos, F. Gioti. Adjustment of envelopes characteristics to climatic conditions for saving heating and cooling energy in buildings. In Proceedings of \u201c25th International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems (ECOS 2012)\u201d, pp. 24\u201339, 26\u202f\u2013\u202f29\u202fJune, 2012, Perugia, Italy.<\/p>

Tzivanidis, K.A. Antonopoulos, E.D. Kravvaritis. Numerical evaluation of the degree of phase change materials exploitation in building passive solar heating and cooling. In Proceedings of \u201c24th International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems (ECOS 2011)\u201d, pp. 2007\u20132022, 4\u202f\u2013\u202f7\u202fJuly, 2011, Novi Sad, Serbia.<\/p>

Tzivanidis, K.A. Antonopoulos, F. Gioti. Computational analysis of the envelope parameters effects on the transient heating energy consumption of buildings. In Proceedings of \u201c24th International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems (ECOS 2011)\u201d, pp. 1894\u20131908, 4\u202f\u2013\u202f7\u202fJuly, 2011, Novi Sad, Serbia<\/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<\/div>","protected":false},"excerpt":{"rendered":"

Conference Papers Publications in peer reviewed Conference Proceedings\u00a0 Kitsopoulou, E. Bellos, D.\u00a0Gonidaki, C.\u00a0Sammoutos, P.\u00a0Lykas, E.\u00a0Vidalis, K. Polychronakis, G. Mitsopoulos, C. Tzivanidis, Multi-objective Evaluation of Cooling Passive Building Envelope Technologies for Optimal Thermal Performance and Indoor Comfort, In Proceedings of \u201cInternational Conference ENERGY in BUILDINGS 2025\u201d, 15 November 2025, Athens, Greece Kitsopoulou,\u00a0D.Pallantzas, G. Kosmadakis, C.\u00a0Sammoutos, P.\u00a0Lykas, […]<\/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-291","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.labracse.gr\/el\/wp-json\/wp\/v2\/pages\/291","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=291"}],"version-history":[{"count":40,"href":"https:\/\/www.labracse.gr\/el\/wp-json\/wp\/v2\/pages\/291\/revisions"}],"predecessor-version":[{"id":2569,"href":"https:\/\/www.labracse.gr\/el\/wp-json\/wp\/v2\/pages\/291\/revisions\/2569"}],"wp:attachment":[{"href":"https:\/\/www.labracse.gr\/el\/wp-json\/wp\/v2\/media?parent=291"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}