太阳能/空气能直膨变频翅片热泵热水器结霜的实验研究
收稿日期: 2017-03-29
修回日期: 2017-05-05
网络出版日期: 2017-06-30
基金资助
国家科技支撑计划项目(2015BAA02B00);
东莞创新科研团队项目(2014607101008)
Experimental Study on Frosting Characteristics of a Solar/Air Source Direct-Expansion Variable Frequency Finned Heat Pump Water Heater
Received date: 2017-03-29
Revised date: 2017-05-05
Online published: 2017-06-30
秦 静 , 季 杰 , 黄文竹 , 秦 红 , 黎天标 , 徐礼颉 . 太阳能/空气能直膨变频翅片热泵热水器结霜的实验研究[J]. 新能源进展, 2017 , 5(3) : 183 -188 . DOI: 10.3969/j.issn.2095-560X.2017.03.004
In this study, the influence of ambient temperature, solar radiation, and compressor frequency on the frost characteristics and heating performance of a solar/air source direct expansion variable frequency finned heat pump was investigated in an enthalpy difference lab with a solar simulator. Results show that, at the beginning, the frost accumulates with the rising of the water temperature, after the water temperature reaches a certain value, the frost gradually dissolves with the rising of the water temperature until totally disappears. The instant COP of the heat pump decreases with the rising of water temperature. When the ambient temperature or solar radiation rises, the frost becomes less serious and COP increases. When the compressor frequency decreases, the frost becomes less serious and the average COP increases.
Key words: solar energy; air energy; direct expansion; heat pump; frost; compressor frequency; fin
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