蒸发式冷凝器空调系统性能实验

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1、维普资讯http://www.cqvip.com№．3陕西科技大学学报JurL2008·138·JOURNALOFSHAANXIUNIVERSITYOFSCIENCE&TECHNOLOGYV0L26‘文章编号：1000-5811(2008)03—0138—07EVAPoRATIVECoNDENSERAIRCoNDITIoNSYSTEMPERFoRMANCETUAi—min。ZHUDong—sheng．ZHAOQiang(InstituteofChemicalandEnergyEngineering，EducationalMinistrysKeyLabofEnhancedHeatTransfe

2、randEnergyConservation，SouthChinaUniv．ofTech，Guangzhou510640，China)Abstract：Aperformancetestofairconditionsystembasedonevaporativecondenseriscar—riedout．Theresultsoftestshowthatthesystemscoefficientofperformance(COP)isuptoaround3．5evenifitrunninginanambientoflargerrelativehumidity．Theheatemissionca

3、pacityofevaporativecondenserisimpactedobviouslybythewetbulbtemperatureofair。Whenotherparametersconstant，theheatemissiondecreasesaround5whilethewetbulbtemperaturerisebyonedegreeCelsiusinthetestingscope．ThetestingresultsforavariableworkingconditiondisplaysthatthesystemsCOPandtheenergyefficiencyratio(

4、R)ofe—vaporativecondenseraredecreasedalongwiththereducingcoldload．Theresultsalsodis—playsthatthesystemsCOPcanincreaseupwardstoover5whileavariablefrequencydrivefortheinducedfanisused．Keywords：evaporativecondenser；aircondition；coefficientofperformance(COP)CLCNumber：TQ051．5DocumentCode：A0IntroductionE

5、vaporativecondenserisakindofcompactheatexchangerwhichcombinedthecharacteristicsofair-cooledcondenser，water-cooledcondenserandcoolingtower．Sinceitmainlyreliesonwaterevaporationtoexhaustheat，therecyclingwaterneededareonly30to60ofthewater-cooledtype．Further—more，duetothecoolingwaterrecycleonlyintheinn

6、erloopofcondenserequipment，pumpspowercostareonlyonefourthtoonethirdofwwww.zhulong.comater—cooledcondenserwithcoolingtowersystem，andwatertreat—mentcostsaremuchlowertoo．Asthecharacteristicsofevaporativecondenserrelyonevaporativecool—ing，generalconsideredthatthistypecondenserismoresuitableforaridregio

7、nsE'．Inaddition。ithasbeenrecognizedthatinlarge-scaleindustrialrefrigerationregion，evaporativecondenserhascertainad—vantages．Therefore，inpetroleum，chemicals，fertilizer，sodaash，beverages，foodandmanyotherin—du