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Article

Performance Results of a Solar Adsorption Cooling and Heating Unit

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Laboratory of Steam Boilers and Thermal Plants, School of Mechanical Engineering, National Technical University of Athens, 15780 Athens, Greece
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Consiglio Nazionale delle Ricerche (CNR), Istituto di Tecnologie Avanzate per l’Energia “Nicola Giordano” (ITAE), 98126 Messina, Italy
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Fahrenheit GmbH, 80803 Munich, Germany
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AkoTec Produktionsgesellschaft mbH, 16278 Angermünde, Germany
*
Author to whom correspondence should be addressed.
Energies 2020, 13(7), 1630; https://doi.org/10.3390/en13071630
Received: 23 February 2020 / Revised: 15 March 2020 / Accepted: 19 March 2020 / Published: 2 April 2020
(This article belongs to the Section Energy and Buildings)
The high environmental impact of conventional methods of cooling and heating increased the need for renewable energy deployment for covering thermal loads. Toward that direction, the proposed system aims at offering an efficient solar powered alternative, coupling a zeolite–water adsorption chiller with a conventional vapor compression cycle. The system is designed to operate under intermittent heat supply of low-temperature solar thermal energy (<90 °C) provided by evacuated tube collectors. A prototype was developed and tested in cooling mode operation. The results from the testing of separate components showed that the adsorption chiller was operating efficiently, achieving a maximum coefficient of performance (COP) of 0.65. With respect to the combined performance of the system, evaluated on a typical week of summer in Athens, the maximum reported COP was approximately 0.575, mainly due to the lower driving temperatures with a range of 75 °C. The corresponding mean energy efficiency ratio (EER) obtained was 5.8. View Full-Text
Keywords: solar cooling; adsorption; evacuated tube collectors; experimental testing solar cooling; adsorption; evacuated tube collectors; experimental testing
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MDPI and ACS Style

Roumpedakis, T.C.; Vasta, S.; Sapienza, A.; Kallis, G.; Karellas, S.; Wittstadt, U.; Tanne, M.; Harborth, N.; Sonnenfeld, U. Performance Results of a Solar Adsorption Cooling and Heating Unit. Energies 2020, 13, 1630. https://doi.org/10.3390/en13071630

AMA Style

Roumpedakis TC, Vasta S, Sapienza A, Kallis G, Karellas S, Wittstadt U, Tanne M, Harborth N, Sonnenfeld U. Performance Results of a Solar Adsorption Cooling and Heating Unit. Energies. 2020; 13(7):1630. https://doi.org/10.3390/en13071630

Chicago/Turabian Style

Roumpedakis, Tryfon C., Salvatore Vasta, Alessio Sapienza, George Kallis, Sotirios Karellas, Ursula Wittstadt, Mirko Tanne, Niels Harborth, and Uwe Sonnenfeld. 2020. "Performance Results of a Solar Adsorption Cooling and Heating Unit" Energies 13, no. 7: 1630. https://doi.org/10.3390/en13071630

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