制冷循环-secret

1、制制 冷冷 循循 环环 American Standard Inc. 1999period oneHeat and RefrigerationRefrigeration CycleAir Conditioning Clinic TRG-TRC003-ENWhat is Refrigeration?Refrigeration is the process of removing heat from one substance and transferring it to another substance.What is Heat?Heat is a form of energyQuantity

2、 and IntensityQuantity and IntensityMeasuring Heat QuantityPrinciples of Heat TransfersHeat energy cannot be destroyedsHeat always flows from a higher temperature substance to a lower temperature substancesHeat can be transferred from one substance to anotherHeat Energy Cannot Be DestroyedHeat Flows

3、 from Hot to ColdMethods of Heat Transferradiationhotwaterconductionconvectioncool airwarm airRate of Heat FlowTon of Refrigeration American Standard Inc. 1999period twoRefrigerantsRefrigeration CycleAir Conditioning Clinic TRG-TRC003-ENIce as a Coolantice melts atIce as a Coolantice melts atDry Ice

4、 as a Coolantdry iceevaporates atRefrigerant-22R-22 boils atEffect of Transferring HeatEffect of Transferring HeatEffect of Transferring HeatEffect of Transferring HeatLatent HeatSensible HeatABSpecific HeatModern Refrigerants American Standard Inc. 1999period threeRefrigeration CycleRefrigeration C

5、ycleAir Conditioning Clinic TRG-TRC003-ENRefrigeration SystemRefrigeration SystemRefrigeration SystemBoiling Point of WaterBoiling Point of Refrigerant-22Vapor-Compression CycleBasic Refrigeration SystemAB BCDEvaporatorBACompressorCBCondenserCDExpansion DeviceADBasic Refrigeration Systemhigh-pressur

6、esidelow-pressuresideAB BCD American Standard Inc. 1999period fourPressureEnthalpy ChartRefrigeration CycleAir Conditioning Clinic TRG-TRC003-ENPressureEnthalpy (Ph) ChartADPh Chart for WaterBCBCHeat of Vaporization for WaterCEvaporatorBASuperheatCBADCompressorCBADHeat of CompressionCBADGCondenserCB

7、EFAExpansion DeviceDGCBEFAAExpansion DeviceDGCBEFRefrigeration CycleDGCBEFA American Standard Inc. 1999period fiveReviewRefrigeration CycleAir Conditioning Clinic TRG-TRC003-ENReviewPeriod OnesHeat is a form of energysHeat can vary in quantity and intensitysHeat energy cannot be destroyedsHeat can be transferred from one substance to anothersHeat always flows from a higher temperature substance to a lower