We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
燃气热泵系统在过渡季节制备生活热水的性能研究.
- Authors
胡亚飞; 冯自平; 宋文吉
- Abstract
In this study, the performance characteristics of gas engine-driven heat pump (GHP) system for supplying domestic hot water in transitional seasons were investigated. The influence of the recovered engine waste heat on the GHP system was analyzed. The changes of the heating capacity of domestic hot water (Qh), gas consumption power (Pgas), and primary energy ratio (PER r) in two operating modes of recovery and non-recovery of engine waste heat were studied under the conditions of different ambient air temperatures (15-24°C) and water inlet temperatures (37.7-47.8°C). The results illustrated that with the increase of ambient air temperature, Pgas decreased while Qh and PER r increased. However, as the water inlet temperature increased, Pgas increased while Qh and PER r decreased. The ranges of 20-24°C in ambient air temperature and 37.7-47.8°C in water inlet temperature were the insensitive temperature ranges to Qh. The PER r of the GHP system was as high as 2.004 under the conditions of the ambient air temperature of 24°C and the water inlet temperature of 37.7°C, respectively. In this GHP system, the recovered waste heat accounted for 25.00%-30.16% of Qh and 62.17%-71.56% of the total engine waste heat. The waste heat utilization rate of the GHP system was high.
- Subjects
HEAT pumps; WASTE recycling; HOT-water supply; HEAT engines; WASTE heat; WATER temperature; HEAT capacity
- Publication
Advances in New & Renewable Energy, 2023, Vol 11, Issue 1, p14
- ISSN
2095-560X
- Publication type
Article
- DOI
10.3969/j.issn.2095-560X.2023.01.003