【作者】 张海峰； 葛新石； 叶宏； 焦冬生；

【Author】 Zhang Haifeng Ge Xinshi Ye Hong Jiao Dongsheng (Department of Thermal Science and Energy Engineering, University of Science and Technology of China, Hefei, 230027)

【机构】 中国科学技术大学热科学与能源工程系；

【摘要】 分析兼作制冷和供热的一台热泵与完成相同功能的一台热泵热水器和一台空调制冷机联合运行的功耗。结合热力学第一定律和第二定律,比较了两种应用方案的投入电能消耗。结果表明,空气源热泵系统的废热回收具有显著的节能意义,节能效果和传热温差呈线性关系。更多还原

【Abstract】 The work consumption of a single heat pump, simultaneously used for space cooling and water heating, is analyzed, compared to those of a heat pump water heater and an air conditioner, used for water heating and space cooling, respectively. Based on the first and the second thermodynamic laws, the input electrical powers of the two running modes are comparatively investigated to account for the energy saving. The results show that the energy saving is significant if the waste heat of the air source heat pump can be recovered, and the efficiency is linear to the temperature difference of the heat exchange.更多还原