制冷与空调(四川)
製冷與空調(四川)
제랭여공조(사천)
REFRIGERATION & AIR-CONDITION
2015年
3期
330-336
,共7页
上官继峰%马国远%许树学
上官繼峰%馬國遠%許樹學
상관계봉%마국원%허수학
R32%R123%非共沸%组分比
R32%R123%非共沸%組分比
R32%R123%비공비%조분비
R32%R123%non-azeotropic%proportion
根据混合工质优势互补的原理,提出R32与R123的二元非共沸混合制冷剂。基于Matlab计算平台,并调用NIST开发的Refprop物性参数编制了混合工质计算程序,对5种不同工况的单级循环性能进行了计算。结果显示,在工况2和4下,R123中添加R32质量分数5~7%,系统制冷COP相比纯R123提高38.08%~52.94%,系统的压力提高显著;在工况5下,当R32中添加R123质量分数10%时,系统的COP相比纯R32可提高6.4%,排气温度降低3.2℃,混合GWP值相比R32降低8.22%。
根據混閤工質優勢互補的原理,提齣R32與R123的二元非共沸混閤製冷劑。基于Matlab計算平檯,併調用NIST開髮的Refprop物性參數編製瞭混閤工質計算程序,對5種不同工況的單級循環性能進行瞭計算。結果顯示,在工況2和4下,R123中添加R32質量分數5~7%,繫統製冷COP相比純R123提高38.08%~52.94%,繫統的壓力提高顯著;在工況5下,噹R32中添加R123質量分數10%時,繫統的COP相比純R32可提高6.4%,排氣溫度降低3.2℃,混閤GWP值相比R32降低8.22%。
근거혼합공질우세호보적원리,제출R32여R123적이원비공비혼합제랭제。기우Matlab계산평태,병조용NIST개발적Refprop물성삼수편제료혼합공질계산정서,대5충불동공황적단급순배성능진행료계산。결과현시,재공황2화4하,R123중첨가R32질량분수5~7%,계통제랭COP상비순R123제고38.08%~52.94%,계통적압력제고현저;재공황5하,당R32중첨가R123질량분수10%시,계통적COP상비순R32가제고6.4%,배기온도강저3.2℃,혼합GWP치상비R32강저8.22%。
Based on the principle of complementary advantages of mixed refrigerants, this paper proposed binary zeotropic refrigerant mixtures of R32 and R123. Matlab is used for theoretical circular calculation of the mixture at different proportion by calling property parameters from Refprop developed by NIST. By comparasion of performance parameters under 5 different conditions in the single compression system, the result indicates that, after adding 5~7 percent R32 to pure R123 under the second and fourth conditions, the coefficient of performance(COP) of the mixed refrigerant can increase 38.08%~52.94%, significantly increasing the system pressure. After adding 10 percent R123 to R32 under the 5th condition, theCOP of the mixed refrigerant can increase 6.4%, the discharge temperature decreases 3.2℃, TheGWP can be reduced by 8.22%.