半封闭活塞式制冷压缩机低温工况应用R404A的试验研究

R404AX1)1)1)2)2)1)()2)()R404AR22,R404AR22,R404AStudyonlowtemperatureapplicationsofR404Aforsemi2hermeticreciprocatingrefrigerationcompressorZhangHuajun1)ChenWei1)LiYong1)QinHaijie2)DuXigang2)1)(XianJiaotongUniversity)2)(DalianSanyoCompressorCo.,Ltd.)ABSTRACTCarriesoutcontrastexperimentonreciprocatingcompressorunderlowtempera2tureworkingcondition,usingbothR404AandR22.Throughthestudyofthisexperiment,analyzesthefeasibilityofreplacingR22withR404A.KEYWORDSR404A;experimentalstudy;semi2hermeticreciprocatingrefrigerationcom2pressor,,1999,R404A;2002R404A;(WAL2MART)(HY2MALL),,,,R22R404A(-20-40,3555),R22R404A,1R404AR22R22,R404AODP,GWPR404AR22,R404AR22,R404A,2R22R404A,121):-10,45,18.3,02):-40,45,18.3,0Pe,Pc,,td,COP,q0,w0,qv,wv7320076REFRIGERATIONANDAIR-CONDITIONING71274X:2006210231:,E2mail:[e-mail]1R22R404APe/barPc/bartd/COPq0/(kJkg-1)w0/(kJkg-1)qv/(kJm-3)wv/(kJm-3)R223.5417.294.88100.563.58164.6445.982209.87617.15R404A4.3320.454.7268.883.17114.6636.162169.44684.142R22R404APe/barPc/bartd/COPq0/(kJkg-1)w0/(kJkg-1)qv/(kJm-3)wv/(kJm-3)R221.0517.2916.48179.151.81168.6893.09642.35354.51R404A1.3320.44915.38113.191.64118.6972.52650.7397.591,-4040,R404AR2215%20%,R404AR22,(t0tk),R404A,R22,R22122t0tk,,R404AR22,212,18.3,R22,,R404AR22,R404AR22,R404A,R2230%,:1),R404AR22,1.8%;,R404AR221.3%,R404A;2),R404AR22,2,,GB/T577322004:4,62mm,70mm,-5-40,R22,40.5,-15,30.3kW,13.8kW-20-40,3054.4,18.30303[1]3.140.5,2R22R404A(-20-40)Q0,w,COPI,3,40.5,-20-40,R404AR22,7%27%,R404AR22,R404AR22R404A2773R22R404At0/tk/w/kWI/AQ0/kWCOPR404AR22-2014.75512.57130.3725.2926.09824.3651.7691.938R404AR22-2513.12911.09827.6823.320.64818.7801.5731.692R404AR22-3040.511.7769.77327.4121.6815.89613.2531.3501.356R404AR22-3510.1758.43125.4820.3312.1429.5981.1931.138R404AR22-408.8267.04125.3418.38.7136.9220.9870.983,R404AR22,,,-30,R404AR22,R404A,R22,6%26%,R22,R404A,3.2-40,,2,Q0td,44Q0tdt0/tk/td/Q0/kWR404A-40351229.471R22-4035138.67.220R404A-4040.5124.38.713R22-4040.5142.56.922R404A-4045126.27.841R22-40451456.532R404A-4050128.16.751R22-4050147.26.261R404A-4054.41305.941R22-4054.4149.55.7604,-40,,R404AR22,,R404AR22,R404AR22,,R22R404A,,3.3,40.5,-40,18.3,,,55tgR404AR22R404AR22R404AR22R404AR22tg/00101020203030Q0/kW8.7136.9229.887.3911.037.8912.098.37COP0.990.981.121.061.251.131.371.2,,,R404AR22,103.43,(-5-40,40.5,18.3,0)R404AR22,50%,,R404AR2250%33.5,,-45,R22,,,,R404A,-45,40.5,60.855,,-45,R404A,6t0/tk/t1/Pe/MPaR404A-4540.518.30.112Pc/MPaw/kWI/AQ0/kWR404A1.8357.48022.776.392373:R404A3.64,40.5,20,0hB2G747R404AR22/-40-30-20-40-30-20hB2A/(kJkg-1)48.8641.5533.9437.5432.126.46hA2G/(kJkg-1)79.2785.6691.97356.09360.61364.96hB2G/(kJkg-1)128.13127.21125.91393.63392.71391.42hA2G/hB2G62%67%73%90%92%93%7,,R404A(hB-A)R22,,,,,,R404A,3.7,-20-40,5,R404AR225tk=40.5tdt0R22R404A20R223GSD,,150,-40,54.4R22R404A,,130R404A,,,6,1014,135,R404A6R404Atd41)(-20-40),R404AR22,15%,40%,-30,R404AR222)R404A3)R404AR22,,R404A,R224),R404AR22,,R404AR22,,R404A5)R404A,6)R404A[1].R404A.:,2006.477