Mr. George Meramveliotakis

Email: gmera@ipta.demokritos.gr

Mr. George Meramveliotakis is a research associate at the Laboratory of Solar and Other Energy Systems, since 2024. He holds a diploma in Mechanical Engineering from the National Technical University of Athens (NTUA), where he is also pursuing a Ph.D. focusing on the modeling and experimental investigation of renewable energy-based systems combining solar and geothermal energy sources with heat pumps. He has worked at NCSR “Demokritos” as a research associate, contributing to various EU and nationally funded projects (since 2021), and in the industry as an R&D Mechanical Engineer (since 2023). His research interests focus on the design, thermodynamic analysis, simulation, and experimental testing of heat pumps for building and industry, as well as their integration with renewable sources. He also has experience in the simulation and experimental testing of Organic Rankine Cycle (ORC) systems and high-temperature heat pumps (HTHPs), with a particular emphasis on waste heat recovery. Furthermore, he has gained experience in industrial automation, specialized in the control of heat pumps and refrigeration systems.

Education:

• Ph.D. School of Mechanical Engineering, National Technical University of Athens, ongoing.
• Diploma, School of Mechanical Engineering, National Technical University of Athens, 2020

Research Interests:

• Heat pumps for domestic applications
• High-temperature heat pumps
• Organic Rankine cycle systems
• Waste heat recovery in industrial and marine applications
• Solar thermal and applications, renewable energy sources

Publications: Mr. Meramveliotakis has 6 publications in Int. peer-reviewed Journals and 7 conference publications, with an h-index of 4 (Scopus, January 2025).

Publications in International Journals:

1. Kosmadakis G, Meramveliotakis G, Bakalis P, Neofytou P. Waste heat upgrading with high-temperature heat pumps for assisting steam generation in ships: Performance, cost and emissions benefits. Applied Thermal Engineering 2024; 236:121890.
2. Mbuwir B.V, Geysen D, Kosmadakis G, Pilou M, Meramveliotakis G, Toersche Hermen. Optimal control of a heat pump-based energy system for space heating and hot water provision in buildings: Results from a field test. Energy and Buildings 2024; 310:114116.
3. Pilou M, Kosmadakis G, Meramveliotakis G. Modeling of an Integrated Renewable-Energy-Based System for Heating, Cooling, and Electricity for Buildings. Energies 2023; 16(12):4691.
4. Meramveliotakis G, Kosmadakis G, Karellas S. Methods based on a semi empirical model for simulating scroll compressors with HFC and HFO refrigerants. Open Res. Europe 2022; 1:148.
5. Meramveliotakis G, Kosmadakis G, Karellas S. Identifying the performance and losses of a scroll compressor with vapour injection and R1234ze(E). Open Res. Europe 2022; 2:49.
6. Pilou M, Kosmadakis G, Meramveliotakis G, Krikas A. Towards a 100% renewable energy share for heating and cooling in office buildings with solar and geothermal energy. Solar Energy Advances 2022; 2:100020.

Publications in conferences:

1. Koliou N, Boura T, Konstantopoulos S, Meramveliotakis G, , Kosmadakis G. Comparing Prior and Learned Time Representations in Transformer Models of Timeseries. 13th Conference on Artificial Intelligence (SETN 2024) 11 – 13 September 2024, Piraeus, Greece.
2. Boura T, Koliou N, Meramveliotakis G, Konstantopoulos S, Kosmadakis G. Predicting Solar Heat Production to Optimize Renewable Energy Usage. 13th Conference on Prestigious Applications of Intelligent Systems (PAIS) 19 – 24 October 2024, Santiago de Compostela, Spain.
3. Meramveliotakis G, Tyris D, Gkountas A, Bakalis P. Performance investigation of a Dual -Source heat pump for a swine nursery barn in norther Italy. 37th International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems (ECOS 2024) 30 June – 5 July 2024, Rhodes, Greece
4. Tyris D, Constantino A, Goliomytis M, Bakalis P, Gkountas A, Meramveliotakis G, Manolakos D. An integrated renewable energy system for the decarbonization of a laying hens farm in Central Greece. AIIA 2024 Biosystems engineering promoting resilience to climate change 17 – 19 June 2024, Padova, Italy.
5. Meramveliotakis G, Kosmadakis G, Pilou M, Karellas S. Testing a Flexible Configuration of a Solar-Assisted Heat Pump with PVT Collectors for Domestic Hot Water Production. ISES and IEA SHC Conference on Solar Energy for Buildings and Industry (EuroSun 2022) 25 – 29 September 2022, Kassel, Germany.
6. Pilou M, Kosmadakis G, Meramveliotakis G, Krikas A. Renewable Energy Based Systems with Heat Pumps for Supplying Heating and Cooling in Residential Buildings. The 34th International Conference On Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems (ECOS2021), June 27-July 2 2021, Taormina, Italy.