Application of an air source heat pump (ASHP) for heating in Harbin, the coldest provincial capital of China
Application of an air source heat pump (ASHP) for heating in Harbin, the coldest provincial capital of China
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DOI：
10.1016/j.enbuild.2016.12.044
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发表时间：
2017-03
影响因子：
6.7
通讯作者：
Yaning Zhang;Q. Ma;Bingxi Li;Xinmeng Fan;Zhongbin Fu
中科院分区：
文献类型：
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作者：
Yaning Zhang;Q. Ma;Bingxi Li;Xinmeng Fan;Zhongbin Fu
本文介绍了空气源热泵在中国最冷的省会城市哈尔滨市的应用效果。这些包括加热温度，系统COP（性能系数），并在三个寒冷的日子运行的ASHP的结霜特性。结果表明，由于室内空气温度较高，为19.8-24.2 ° C，因此在三天内，空气源热泵显示出21.9-27.3 °C的高加热温度。ASHP显示三天的COPs较低，为1.04-2.44，主要是由于室内温度高（19.8-24.2 °C）和室外温度低（−20.9至−10.4 °C）所致。虽然该系统具有较低的COP，但在位于冷室外空气中的蒸发器的管和翅片表面上没有观察到明显的结霜现象，这主要是由于室外空气的相对湿度较低（27%-37%）。研究结果表明，ASHP可用于寒冷地区的供暖应用。然而，室内外空气温度之间的差异应控制在41 °C以内，以实现可接受的COP。
This study reports the application results of an air source heat pump (ASHP) for heating in Harbin, the coldest provincial capital of China. These include the heating temperatures, system COPs (coefficient of performance), and frost characteristics of the ASHP operated in three cold days. The results show that the ASHP showed high heating temperatures of 21.9–27.3 °C for the three days, as the indoor air had high temperatures of 19.8–24.2 °C. The ASHP showed low COPs of 1.04–2.44 for the three days, mainly resulting from the high indoor temperatures of 19.8–24.2 °C and low outdoor temperatures of −20.9 to −10.4 °C collectively. Although the ASHP system had low COPs, no obvious frost phenomena were observed on the surfaces of the tubes and fins of the evaporator located in the cold outdoor air, mainly due to the low relative humidities of 27%–37% for the outdoor air. The results obtained from this study show that ASHPs can be used for heating applications in cold regions. However, the difference between indoor and outdoor air temperatures should be controlled within 41 °C to achieve an acceptable COP.