电气与信息工程河南科技HenanScienceandTechnology总第799期第5期2023年3月带喷射器直接接触冷凝制冷循环性能研究宁静红杨挺然刘华阳(天津商业大学天津市制冷技术重点实验室,天津300134)摘要:【目的目的】探究带喷射器直接接触冷凝制冷循环(EDCC)制冷系统的性能,为提高制冷系统的能效提供参考。【方法方法】本研究采用总当量变暖影响(TEWI)参数对该系统进行环境分析,讨论影响系统性能的因素,并与蒸气压缩喷射引射制冷循环的性能进行对比。【结果结果】EDCC制冷循环的COP及效率受蒸发温度、主循环冷凝温度的影响。在-27℃以下,EDCC循环的COP比带喷射器蒸气的压缩制冷循环性能提高约1.57%,效率在全工况下优于带喷射器蒸气压缩制冷循环。辅助循环对系统效率和环境性能影响较大,辅助循环中冷凝器的损失最大,直接接触冷凝器和主循环膨胀阀损失较少。【结论结论】EDCC制冷循环具有良好的系统性能、效率和环境友好度。关键词:直接接触冷凝;;环境中图分类号:TB66文献标志码:A文章编号:1003-5168(2023)05-0005-06DOI:10.19968/j.cnki.hnkj.1003-5168.2023.05.001StudyonDirectContactCondensingRefrigerationCyclewithEjectorNINGJinghongYANGTingranLIUHuayang(TianjinKeyLaboratoryofRefrigerationTechnology,TianjinUniversityofCommerce,Tianjin300134,China)Abstract:[Purposes]Inordertoimprovetheenergyefficiencyoftherefrigerationsystem,theperfor⁃manceoftherefrigerationsystemwithejectordirectcontactcondensationrefrigerationcycle(EDCC)wasinvestigated.[Methods]Inthisstudythetotalequivalentwarmingimpact(TEWI)parameterswereusedtoanalyzetheenvironmentofthesystem.Thefactorsaffectingtheperformanceofthesystemwerediscussedandcomparedwiththeperformanceofthevaporcompressionejectorrefrigerationcycle.[Findings]TheCOPandefficiencyoftheEDCCrefrigerationcycleareaffectedbytheevaporationtem⁃peratureandthecondensationtemperatureofthemaincycle.Under-27℃,theCOPoftheEDCCcycleisabout1.57%higherthanthatofthecompressionrefrigerationcyclewithejectorvapor,andtheexergyeffi⁃ciencyisbetterthanthatofthecompressionrefrigerationcyclewithejectorvaporunderalloperatingcon⁃ditions.Theauxiliarycyclehasagreatinfluenceontheeconomicandenvironmentalperformanceofthesystem.Thelosso...