The Performance Analysis on the 75°C Hot Water of the Air Source Heat Pump Using R134A

Abstract:

In this paper the system of air-source heat pump water heater(ASHPWH) using R134A to get 75°C hot water is proposed. The experiments on the performance of ASHPWH are conducted in two typical conditions, one for 7°C dry bulb temperature and 6°C wet bulb temperature, the other for 20°C dry bulb temperature and 15°C wet bulb temperature. In addition the variations of the suction temperature, the exhaust temperature, the suction pressure, the exhaust pressure, the transient heat capacity, the input power and COPs with the changing of the hot water tank temperature are analyzed. The results show that 75°C hot water can be produced steadily and the COPs are 2.84 and 3.68 respectively in two different conditions, therefore the ASHPWH has good energy saving effect.

• Periodical: Advanced Materials Research (Volumes 482-484)
• Pages: 758-762
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.482-484.758
• Online since: February 2012
• Authors: Xing Wang Zhu, Chun Xia Hu, Yan Li Lv, Chao Xin Wang, Yu Gui Su
• Keywords: 75°C Hot Water, Heat Pump, R134a, Water Heater

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