Experimental Study on Domestic Heat Pump Water Heater with Waste Heat Recovery

To recover waste heat from household bath wastewater and improve energy efficiency, a heat pump water heater with waste heat recovery was designed. Experimental benches were set up for experimental studies. The experiment was carried out with an inlet water temperature of 16 °C and an outlet water t...

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Main Authors: Fan Xiusong, Xu Shuxue, Ma Guoyuan, Shao Yueyue
Format: Article
Language:zho
Published: Journal of Refrigeration Magazines Agency Co., Ltd. 2019-01-01
Series:Zhileng xuebao
Subjects:
Online Access:http://www.zhilengxuebao.com/thesisDetails#10.3969/j.issn.0253-4339.2019.03.079
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author Fan Xiusong
Xu Shuxue
Ma Guoyuan
Shao Yueyue
author_facet Fan Xiusong
Xu Shuxue
Ma Guoyuan
Shao Yueyue
author_sort Fan Xiusong
collection DOAJ
description To recover waste heat from household bath wastewater and improve energy efficiency, a heat pump water heater with waste heat recovery was designed. Experimental benches were set up for experimental studies. The experiment was carried out with an inlet water temperature of 16 °C and an outlet water temperature of 36–46 °C to study the effects of changing parameters, such as the refrigerant charge amount, water output, heating capacity, and heating coefficient of performance (COP). The experimental results show that increasing the refrigerant charge benefits the heating and heating COP stability. However, the maximum heating capacity is 7.9 kW, and the heating COP is 7.7 at the minimum refrigerant charge. For the outlet water temperature of 36–46 °C, the device can effectively recover the heat in the waste water, the heating output is stable at approximately 7.5 kW, and the heating COP is above 6.0.
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spelling doaj.art-259bc4cb775f4469a28e4820f44340712025-03-04T09:30:23ZzhoJournal of Refrigeration Magazines Agency Co., Ltd.Zhileng xuebao0253-43392019-01-014066509587Experimental Study on Domestic Heat Pump Water Heater with Waste Heat RecoveryFan XiusongXu ShuxueMa GuoyuanShao YueyueTo recover waste heat from household bath wastewater and improve energy efficiency, a heat pump water heater with waste heat recovery was designed. Experimental benches were set up for experimental studies. The experiment was carried out with an inlet water temperature of 16 °C and an outlet water temperature of 36–46 °C to study the effects of changing parameters, such as the refrigerant charge amount, water output, heating capacity, and heating coefficient of performance (COP). The experimental results show that increasing the refrigerant charge benefits the heating and heating COP stability. However, the maximum heating capacity is 7.9 kW, and the heating COP is 7.7 at the minimum refrigerant charge. For the outlet water temperature of 36–46 °C, the device can effectively recover the heat in the waste water, the heating output is stable at approximately 7.5 kW, and the heating COP is above 6.0.http://www.zhilengxuebao.com/thesisDetails#10.3969/j.issn.0253-4339.2019.03.079refrigeration and cryogenic engineeringwaste heat recoveryheat pump water heatersrefrigerant charge
spellingShingle Fan Xiusong
Xu Shuxue
Ma Guoyuan
Shao Yueyue
Experimental Study on Domestic Heat Pump Water Heater with Waste Heat Recovery
Zhileng xuebao
refrigeration and cryogenic engineering
waste heat recovery
heat pump water heaters
refrigerant charge
title Experimental Study on Domestic Heat Pump Water Heater with Waste Heat Recovery
title_full Experimental Study on Domestic Heat Pump Water Heater with Waste Heat Recovery
title_fullStr Experimental Study on Domestic Heat Pump Water Heater with Waste Heat Recovery
title_full_unstemmed Experimental Study on Domestic Heat Pump Water Heater with Waste Heat Recovery
title_short Experimental Study on Domestic Heat Pump Water Heater with Waste Heat Recovery
title_sort experimental study on domestic heat pump water heater with waste heat recovery
topic refrigeration and cryogenic engineering
waste heat recovery
heat pump water heaters
refrigerant charge
url http://www.zhilengxuebao.com/thesisDetails#10.3969/j.issn.0253-4339.2019.03.079
work_keys_str_mv AT fanxiusong experimentalstudyondomesticheatpumpwaterheaterwithwasteheatrecovery
AT xushuxue experimentalstudyondomesticheatpumpwaterheaterwithwasteheatrecovery
AT maguoyuan experimentalstudyondomesticheatpumpwaterheaterwithwasteheatrecovery
AT shaoyueyue experimentalstudyondomesticheatpumpwaterheaterwithwasteheatrecovery