Research on the multifunction concentrated solar-air heat pump system

Zhiying Song, Jie Ji, Yuzhe Zhang, Jingyong Cai and Zhaomeng Li

Renewable Energy, 2022, vol. 198, issue C, 679-694

Abstract: To improve space/energy utilization and meet various households’ needs, a high efficient and multifunction concentrated solar-air heat pump system(MC-SA-HP) is proposed in this paper. The concentrator is used to lift the energy density and unit generation of photovoltaic panel, and its three-dimensional feature could realize the layered utilization of space by placing the air source evaporator in the spare part below. By different operating strategies, the system could provide heating, electricity, and cooling. Through testing, MC-SA-HP obtained mean electrical generation and efficiency of 146W and 14.6%, condensing heat of 2114W, COPth and COPPVT of 3.7 and 4.4. Compared with the system using flat-panel photovoltaic, it could improve the electrical generation by 71.8%, heating capacity by 5.9%, total output by 12.6%, overall efficiency of 9.5%, COPPVT by 7.3%, and exergy efficiency of 36.1%. In the cooling mode during experiment, the water temperature drops from 14.6 to 2.6 °C, generating 1.51 × 107 J cooling capacity, and an average COPc of 2.3. The multifunction feature increases the attractiveness and feasibility of this novel system. After calculation, the high-efficient and compact MC-SA-HP system shows great effect on cost and emission reduction, which could help to better cope with climate change and achieve the goal of carbon peak and carbon neutrality.

Keywords: Multifunction; Direct-expansion; Concentrated photovoltaic; Solar-air heat pump (search for similar items in EconPapers)
Date: 2022
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (10)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:renene:v:198:y:2022:i:c:p:679-694

DOI: 10.1016/j.renene.2022.07.105

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