论文简介：

Amicrochannelheatexchangerwasnumericallyanalyzedusingthefinitevolumemethod.Theairandrefrigerant-sideheattransfercoefficientsandpressuredropswerecalculatedusingtheexistingcorrelationsthatweredevelopedformicrochannelheatexchangers.Toverifythepresentmodel,performancetestsofthemicrochannelheatexchangerwereconductedatvarioustestconditionswithR134a.Thepresentmodelyieldedagoodcorrelationwiththemeasuredheattransferrate,demonstratingameandeviationof6.8%.TheperformanceofthemicrochannelevaporatorforCO2systemscanbeimprovedbyvaryingtherefrigerantflowratetoeachslabandchangingfinspacetoincreasethetwo-phaseregioninthemicrochannel.



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