流体机械Issue(7)：65-68,4.DOI:10.3969/j.issn.1005-0329.2014.07.015
R32在带经济器的风冷冷热水机组的试验研究
Experimental Study of Air-to-water Heat Pump with an Economizer Using R32
于文远 1李征涛 1陈阿勇 1肖庭庭 1陈坤 1王一恒1
作者信息
摘要
Abstract
The advantages of R32 as a substitute to R22 were analyzed.Theoretical cycle performance of R 32 and R410A are calculated and analyzed firstly , because the conventional R 22 system has a higher discharge temperature .Based on the theoretical study , an air-to-water heat pump with an economizer as an experimental prototype is investigated , which are supplied by a compa-ny using R410 A and R32 refrigerant .The experiments were carried out under nominal working conditions in the national standard GB/T 18430 .2-2008 .Some experiments are made to investigate the variation of refrigerant system on charging rate , capacity , COP, discharge temperature after the replacement of R 410A with R32.The results showed a decrease by 70% in charge of R410A which is close to the molar mass fraction , and that the capacity and EER of R32 were no less than R410A under both cooling and heating nominal working conditions , while the discharge temperature and compression ratio were decreased obviously . However , the coefficient of system performance increased a little after using economizer .关键词
R32/R410 A/经济器/风冷热泵机组/充注量Key words
R32/R410 A/economizer/air-to-water heat pump/charge分类
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于文远,李征涛,陈阿勇,肖庭庭,陈坤,王一恒..R32在带经济器的风冷冷热水机组的试验研究[J].流体机械,2014,(7):65-68,4.
