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Article

Hybrid Cascade Heat Pump and Thermal-Electric Energy Storage System for Residential Buildings: Experimental Testing and Performance Analysis

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Istituto di Tecnologie Avanzate per l’Energia “Nicola Giordano”, CNR ITAE, 98126 Messina, Italy
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Laboratory of Steam Boilers and Thermal Plants, National Technical University of Athens, 15780 Athens, Greece
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AKG Verwaltungsgesellschaft mbH, Am Hohlen Weg 31, 34369 Hofgeismar, Germany
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Fahrenheit GmbH, Siegfriedstr, 80803 Munich, Germany
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Daikin Europe N.V., Ag. Konstantinou str. 50, 15124 Maroussi, Greece
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Centre Suisse D’électronique et de Microtechnique, CSEM SA, 2000 Neuchâtel, Switzerland
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GREiA Research Group, Universitat de Lleida, Pere de Cabrera s/n, 25001 Lleida, Spain
*
Author to whom correspondence should be addressed.
Academic Editor: Patrick Phelan
Energies 2021, 14(9), 2580; https://doi.org/10.3390/en14092580
Received: 8 April 2021 / Revised: 28 April 2021 / Accepted: 29 April 2021 / Published: 30 April 2021
(This article belongs to the Section Energy and Buildings)
The need for innovative heating and cooling systems to decarbonize the building sector is widely recognized. It is especially important to increase the share of renewables at building level by maximizing self-consumption and reducing the primary energy demand. Accordingly, in the present paper, the results on a wide experimental campaign on a hybrid system are discussed. The system included a sorption module working as the topping cycle in a cascade configuration with a DC-driven vapor compression heat pump. A three-fluids heat exchanger with a phase change material (PCM), i.e., RT4 with nominal melting temperature of 4 °C, was installed on the evaporator side of the heat pump, for simultaneous operation as thermal storage and heat pumping purposes. The heat pump was connected to a DC-bus that included PV connection and electricity storage (batteries). Results showed that the energy efficiency of the heat pump in cascade operation was double compared to compression-only configuration and that, when simultaneously charging and discharging the latent storage in cascade configuration, no penalization in terms of efficiency compared to the compression-only configuration was measured. The self-sufficiency of the system was evaluated for three reference weeks in summer conditions of Athens climate and it was found that up to 100% of the electricity needed to drive the system could be self-produced for a modest cooling demand and up to 67% for the warmer conditions with high cooling demand. View Full-Text
Keywords: heat pump; thermal energy storage; electricity storage; PCM; cooling; buildings heat pump; thermal energy storage; electricity storage; PCM; cooling; buildings
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MDPI and ACS Style

Palomba, V.; Bonanno, A.; Brunaccini, G.; Aloisio, D.; Sergi, F.; Dino, G.E.; Varvaggiannis, E.; Karellas, S.; Nitsch, B.; Strehlow, A.; Groβe, A.; Herrmann, R.; Barmparitsas, N.; Koch, N.; Vérez, D.; Cabeza, L.F.; Zsembinszki, G.; Frazzica, A. Hybrid Cascade Heat Pump and Thermal-Electric Energy Storage System for Residential Buildings: Experimental Testing and Performance Analysis. Energies 2021, 14, 2580. https://doi.org/10.3390/en14092580

AMA Style

Palomba V, Bonanno A, Brunaccini G, Aloisio D, Sergi F, Dino GE, Varvaggiannis E, Karellas S, Nitsch B, Strehlow A, Groβe A, Herrmann R, Barmparitsas N, Koch N, Vérez D, Cabeza LF, Zsembinszki G, Frazzica A. Hybrid Cascade Heat Pump and Thermal-Electric Energy Storage System for Residential Buildings: Experimental Testing and Performance Analysis. Energies. 2021; 14(9):2580. https://doi.org/10.3390/en14092580

Chicago/Turabian Style

Palomba, Valeria; Bonanno, Antonino; Brunaccini, Giovanni; Aloisio, Davide; Sergi, Francesco; Dino, Giuseppe E.; Varvaggiannis, Efstratios; Karellas, Sotirios; Nitsch, Birgo; Strehlow, Andreas; Groβe, André; Herrmann, Ralph; Barmparitsas, Nikolaos; Koch, Nelson; Vérez, David; Cabeza, Luisa F.; Zsembinszki, Gabriel; Frazzica, Andrea. 2021. "Hybrid Cascade Heat Pump and Thermal-Electric Energy Storage System for Residential Buildings: Experimental Testing and Performance Analysis" Energies 14, no. 9: 2580. https://doi.org/10.3390/en14092580

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