An energetic, economic and environmental evaluation of a dual-source heat pump water heater – A case study in Beijing

2022 ◽  
Vol 253 ◽  
pp. 115190
Author(s):  
Rong Zhao ◽  
Yuming Liu ◽  
Chongxing Li ◽  
Boya Ji ◽  
Binyu Wang
Keyword(s):  
Heat Pump ◽  
Water Heater ◽  
Environmental Evaluation ◽  
Heat Pump Water Heater ◽  
Dual Source

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

Energies ◽  
2018 ◽  
Vol 11 (10) ◽  
pp. 2811 ◽  
Author(s):  
Xiang Gou ◽  
Shian Liu ◽  
Yang Fu ◽  
Qiyan Zhang ◽  
Saima Iram ◽  
...  
Keyword(s):  
Energy Saving ◽  
Heat Pump ◽  
Coefficient Of Performance ◽  
Water Heater ◽  
Pump System ◽  
Heat Pump System ◽  
Air Source Heat Pump ◽  
Heat Pump Water Heater ◽  
Dual Source ◽  
Bath Water

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.

Research and development of an air-cycle heat-pump water heater. Final report

1979 ◽  
Author(s):  
J.T. Dieckmann ◽  
A.J. Erickson ◽  
A.C. Harvey ◽  
W.M. Toscano
Keyword(s):  
Research And Development ◽  
Heat Pump ◽  
Final Report ◽  
Water Heater ◽  
Heat Pump Water Heater
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