Experimental investigation on a screw-type air source heat pump system with air heat absorption defrosting

Jikang Jia,Pengfei Si,Xiangyang Rong,Boran Liu, Bo Xiang,Lijun Shi, Min Zhang

Applied Thermal Engineering（2024）

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摘要

•A novel ASHP system with air heat absorption defrosting method is proposed.•Experiments are carried out to investigate the system performance.•Heating capacity reaches 315.7 kW with uninterrupted heating during defrosting.•Water temperature fluctuation is reduced by 69% compared to RCD.•The cumulative COP is increased by 9.3% in comparison with RCD.

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关键词

Air source heat pump,Air heat absorption defrosting,Energy efficiency,Continuous heating,Screw compressor

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