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- Title
Field Study on Winter Heating Performance of the Air Source Heat Pump System in Cold Regions.
- Authors
Feng Xu; Xin Chen; Hongxi Zhang; Yongjiang Shi
- Abstract
This paper aims to study the winter heating performance of the air source heat pump (ASHP) system in cold regions. To this end, a winter operation performance test platform of the ASHP was built in an office building of a university in Zhangjiakou area. In the heating season of 2017-2018, the field test on performance parameters such as heating capacity and power consumption of the ASHP system were conducted. The results showed that the ASHP system used in the test can operate normally in extremely cold weather conditions in Zhangjiakou area; the indoor temperature during the ASHP operation meets the winter heating requirements; the coefficient of performance (COP) during the deep cold period was between 1.32 and 3.29; with the outdoor temperature reduced, the heat pump defrosting and oil return process is one of the main factors for energy consumption increase; when the outdoor temperature is high, 10-hour operating mode can save more power compared to the full-day operation; when the outdoor temperature is low, it does not necessarily save more. The research findings provide a valuable reference for the application and improvement of the ASHPs in cold regions.
- Subjects
SHIJIAZHUANG (Hebei Sheng, China); AIR source heat pump systems; COLD regions; COLD weather conditions; WINTER; BUILDING performance; ELECTRIC heating systems; HEAT pumps
- Publication
International Journal of Heat & Technology, 2020, Vol 38, Issue 1, p213
- ISSN
0392-8764
- Publication type
Article
- DOI
10.18280/ijht.380123