本文選題：混合制冷劑 + 熱力學(xué)性質(zhì)　； 參考：《化工進(jìn)展》2017年08期

【摘要】：目前常用的R22的替代制冷劑主要是R410A、R417B等。雖然它們的消耗臭氧潛能值(ODP)值為0,但是其全球變暖潛能值(GWP)值較高,屬于過渡替代物。本文提出了一種新型低GWP三元混合制冷劑,該制冷劑(簡稱NC01)由R1234ze(E)/R134a/R32組成,通過軟件REFPROP9.0分析確定質(zhì)量混合比為17%/33%/50%,對NC01的環(huán)境性、熱物性、循環(huán)性進(jìn)行了分析。NC01的ODP為0,GWP為755,環(huán)境性能良好,GWP比R22降低了57%。臨界溫度、臨界壓力、飽和壓力、性能系數(shù)(COP)等性能參數(shù)與R22比較接近,容積制熱量比R22高。在水源熱泵機(jī)組進(jìn)行了灌注式試驗(yàn),與被替代制冷劑R22進(jìn)行了對比。結(jié)果顯示:當(dāng)冷水進(jìn)水在12~23℃時(shí),新型混合工質(zhì)在排氣溫度比R22高2~3.6℃,相應(yīng)的壓比比R22高8.6%~14.8%,加熱量提高5%~11%,COP比R22平均低約4.5%,加熱速率比R22約提高9%,當(dāng)冷水進(jìn)水高于23℃時(shí),COP值超過R22。最后對試驗(yàn)結(jié)果與理論計(jì)算值進(jìn)行了比較,兩者吻合較好。研究可為類似混合工質(zhì)替代R22研究提供參考。
[Abstract]:At present, the main alternative refrigerants for R 22 are R 410 A O R 417 B and so on. Although their ODP is zero, their global warming potential (GWP) is higher and they are transition substitutes. In this paper, a new low GWP ternary refrigerant is proposed. The refrigerant (NC01) is composed of R1234ze(E)/R134a/R32. The mass mixing ratio is determined to be 17 / 33 / 50 by software REFPROP9.0 analysis. The ODP of .NC01 is 755, and the environmental performance is good. The GWP of NC01 is 57% lower than that of R22. The critical temperature, critical pressure, saturation pressure and coefficient of performance are close to that of R22, and the volumetric heating capacity is higher than that of R22. A water source heat pump unit was tested and compared with the substitute refrigerant R 22. The results show that the exhaust temperature of the new mixed refrigerant is 23.6 鈩，

本文編號(hào)：1811823