Experimental study on air source heat pump system with compressor frequency conversion and capillary

被引：0

作者：

Niu J. ^{[1
,2
]}

Xu S. ^{[1
]}

Liu S. ^{[1
]}

Ma G. ^{[1
]}

机构：

[1] College of Environmental and Energy Engineering, Beijing University of Technology, Beijing

[2] College of Energy and Environmental Engineering, Hebei University of Architecture, Zhangjiakou, 075000, Hebei

来源：

Huagong Xuebao/CIESC Journal | 2018年 / 69卷

关键词：

Air source heat pump; Capillary; Compressor with frequency conversion; Heating performance;

D O I：

10.11949/j.issn.0438-1157.20181130

中图分类号：

学科分类号：

摘要：

Aiming at the household air source heat pump for "coal to electricity", a capillary as a throttle element is proposed to replace the thermal expansion valve or the electronic expansion valve, and an experimental device for heat pump system was set up. The influence of different capillary length on the compressor suction pressure, exhaust temperature and heat capacity of the unit under variable frequency regulation of compressor were experimentally studied. The experimental results show that, after replacing the thermal expansion valve or the electronic expansion valve, the system can run stably for a long time. The system has the best thermal performance when the capillary length is 500 mm and the compressor frequency is 35 Hz, and the heating capacity and heating COP are the largest, but the suction pressure and the exhaust temperature are moderate. © All Right Reserved.

引用

页码：180 / 185

页数：5

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