Experimental Study on the Performance of a Household Dual-Source Heat Pump Water Heater

A household dual source heat pump water heater is proposed to utilize the energy of wastewater and air heat in a bathroom. The heat pump system integrates a wastewater source heat pump (WSHP), air source heat pump (ASHP), and a preheater. This aims at energy saving through recovering the heat of was...

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Main Authors: Xiang Gou, Shian Liu, Yang Fu, Qiyan Zhang, Saima Iram, Yingfan Liu
Format: Article
Language:English
Published: MDPI AG 2018-10-01
Series:Energies
Subjects:
Online Access:http://www.mdpi.com/1996-1073/11/10/2811
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author Xiang Gou
Shian Liu
Yang Fu
Qiyan Zhang
Saima Iram
Yingfan Liu
author_facet Xiang Gou
Shian Liu
Yang Fu
Qiyan Zhang
Saima Iram
Yingfan Liu
author_sort Xiang Gou
collection DOAJ
description A household dual source heat pump water heater is proposed to utilize the energy of wastewater and air heat in a bathroom. The heat pump system integrates a wastewater source heat pump (WSHP), air source heat pump (ASHP), and a preheater. This aims at energy saving through recovering the heat of wastewater and ventilation air during the bathing process. The experiment was conducted to verify the feasibility of a dual heat source heat pump water heater system in a bath unit. It is found that the system can achieve an average coefficient of performance (COP) of 4.80 and 4.38 with and without preheater, respectively. At a bath water temperature of 40 °C, a flow rate of 6 L/min, and a room temperature of 26.5 °C, the COP of system can reach 6.08, which shows a significantly promising method for energy saving in-house.
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spelling doaj.art-cda46d85aa76459e975fb27c91703e6b2022-12-22T02:10:28ZengMDPI AGEnergies1996-10732018-10-011110281110.3390/en11102811en11102811Experimental Study on the Performance of a Household Dual-Source Heat Pump Water HeaterXiang Gou0Shian Liu1Yang Fu2Qiyan Zhang3Saima Iram4Yingfan Liu5School of Energy and Environmental Engineering, Hebei University of Technology, Tianjin 300401, ChinaSchool of Energy and Environmental Engineering, Hebei University of Technology, Tianjin 300401, ChinaSchool of Energy and Environmental Engineering, Hebei University of Technology, Tianjin 300401, ChinaSchool of Energy and Environmental Engineering, Hebei University of Technology, Tianjin 300401, ChinaSchool of Energy and Environmental Engineering, Hebei University of Technology, Tianjin 300401, ChinaSchool of Energy and Environmental Engineering, Hebei University of Technology, Tianjin 300401, ChinaA household dual source heat pump water heater is proposed to utilize the energy of wastewater and air heat in a bathroom. The heat pump system integrates a wastewater source heat pump (WSHP), air source heat pump (ASHP), and a preheater. This aims at energy saving through recovering the heat of wastewater and ventilation air during the bathing process. The experiment was conducted to verify the feasibility of a dual heat source heat pump water heater system in a bath unit. It is found that the system can achieve an average coefficient of performance (COP) of 4.80 and 4.38 with and without preheater, respectively. At a bath water temperature of 40 °C, a flow rate of 6 L/min, and a room temperature of 26.5 °C, the COP of system can reach 6.08, which shows a significantly promising method for energy saving in-house.http://www.mdpi.com/1996-1073/11/10/2811dual sourceheat pumppreheatercoefficient of performance (COP)
spellingShingle Xiang Gou
Shian Liu
Yang Fu
Qiyan Zhang
Saima Iram
Yingfan Liu
Experimental Study on the Performance of a Household Dual-Source Heat Pump Water Heater
Energies
dual source
heat pump
preheater
coefficient of performance (COP)
title Experimental Study on the Performance of a Household Dual-Source Heat Pump Water Heater
title_full Experimental Study on the Performance of a Household Dual-Source Heat Pump Water Heater
title_fullStr Experimental Study on the Performance of a Household Dual-Source Heat Pump Water Heater
title_full_unstemmed Experimental Study on the Performance of a Household Dual-Source Heat Pump Water Heater
title_short Experimental Study on the Performance of a Household Dual-Source Heat Pump Water Heater
title_sort experimental study on the performance of a household dual source heat pump water heater
topic dual source
heat pump
preheater
coefficient of performance (COP)
url http://www.mdpi.com/1996-1073/11/10/2811
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