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1、冷库制冷技术知识（Coldstoragerefrigerationtechnologyknowledge）Thecoldstoragerefrigerationtechnologyknowledge.Txt9loveisadropofdew,kissthedrysoil,rainitwithwarmth,withadiamondfirm,lookingforwardtotheflashinglightofthebrokensoilfertility;afreezingpointofloveinlifeisnot,itisaflowingriver,therivermakesourlife
2、beautifulscene.ColdstoragerefrigerationtechnologyknowledgeColdstoragerefrigerationtechnologyknowledgeRefrigerationreferstotheuseofrefrigerationequipmenttoremoveheatfromalimitedspacetoreducethetemperaturetothedesiredlevel.Thisprocessisdoneby*heattransfer.Somecommonlyusedtermsforrefrigerationarebri
3、eflydescribedasfollows:1.1temperatureThetemperatureisusedtorepresentthematerialofheatandcold,thedegreeoftemperatureoftheavailablethermometertomeasure,suchastheglassthermometer,theliquidinthepipeaftertheheatexpansion,theliquidlevelrises,thecoolingshrinkage,lowliquidlevel,theliquidlevelofsaidlevelt
4、emperature.Hereareabriefdescriptionofseveralstandardsfortemperaturevalues.A.Celsiusunderstandardpressure,thefreezingpointofwateras0degrees,theboilingpointas100degrees,in0and100degreesbetweentheequilibriummomentinto100lattice,eachlatticeisldegrees,withthesymbolCsaid.B.Fahrenheitunderstandardpressu
5、re,thefreezingpointofwateris32degrees,andtheboilingpointisbetween212degreesandtwobalancedcarvedinto180lattice,eachlatticeisldegrees,tosignoF.C.Kelvin(alsocalledKelvin)totheCelsiusscaleasthebasis,tothefreezingpointofwateris273.16degrees,theboilingpointofwateris373.16degrees,thetheoryofmaterialmole
6、cularmovementtostopallpointsas0degrees,withthesymbolKsaid.ThecommonlyusedscaleisCelsius,Fahrenheit,kelvin.Theconversionformulasbetweenthemareasfollows:Fahrenheitcentigrade:China'sCelsiusconversion:Kelvin'srelationtocelsius:T=T+273.16Type:T:Kelvin,K;t:oCCelsius.1.2caloriesThetemperatureofanobjecti
7、ndicatesthedegreeofthermalmotionofthematerialmolecule,andthetemperaturealsoindicatestheenergyleveloftheobject.Thisenergyiscalledheatenergy.Whenthetemperatureoftwodifferentobjectsincontact,thetemperaturegraduallytendsto
