Wu Xuehong, Xu Shuai, Gui Xulong, et al. Effect of Water Supply Temperature on the Performance of Low Temperature Air Source Heat Pump System[J]. Journal of refrigeration, 2019, 40(3).
DOI:
Wu Xuehong, Xu Shuai, Gui Xulong, et al. Effect of Water Supply Temperature on the Performance of Low Temperature Air Source Heat Pump System[J]. Journal of refrigeration, 2019, 40(3). DOI: 10.3969/j.issn.0253-4339.2019.03.066.
Effect of Water Supply Temperature on the Performance of Low Temperature Air Source Heat Pump System
the effect of the water supply temperature on the thermal performance of a heat pump is analyzed. The influence of the water supply temperature on the performance of a heat pump system is investigated for an ambient temperature ?12 °C and ?6 °C and an initial water supply temperature of 20 ℃. The experimental results indicate that
under the same initial temperature
the heating capacity of the compressor system first increased and then decreased
with a maximum heating capacity reached for a water supply temperature of 40 ℃. When the ambient temperature was at ?12 ℃
the water was heated by the heat pump from 25 ℃ to 55 ℃. The power consumption of the system increased from 11
905 W to 24
417 W
an increase of 105%
and the system energy efficiency decreased from 4.03 to 2.11