资源描述：
《制冷_外文期刊.doc》由会员上传分享，免费在线阅读，更多相关内容在行业资料-天天文库。
1、.word可编辑.JonrnalofAppliedSciences(8):788-794,2008ISSN1812-56542008AsianNetworkforScientificInformationDesigningofColdStoresandChoosingofSystemElementsS.AkdemirAir-ConditionandRefrigerationProgramme,VocationalSchool,NamikKemalUniversity,59030Tekirdag,TurkeyAbstract:Inthis
2、study,calculationofcoolingloadandchoosingofthecoolingsystemelementssuchascompressor,condenserandevaporatorwereexplainedfordesigningofthecoldstorage.Transmissionheat(q1),infiltrationheat(q2),productheat(q3),heatofothersources(q4)andunknownandunexpectedheat(q5)whichiscompo
3、nentsofthecoolingloadwerecalculated.Inaddition,amountofthecoolingfluidwascalculatedandchoosingofthecompressor,thecondenserandtheevaporatorwereexplained.Keywords:Coldstorage,coolingload,compressor,condenser,evaporatorINTRODUCTIONCoolingcanbedefinedasthedecreaseoftemperatu
4、reofasubstanceormediumbelowtemperatureofitsenvironment(Anonymous,2001).Refrigerationisaprocessofloweringthetemperatureandmaintainingitinagivenspaceforthepurposeofchillingfoods,preservingcertainsubstances,orprovidinganatmosphereconductivetobodilycomfort.Storingperishablef
5、oods,pharmaceuticals,orotheritemsunderrefrigerationiscommonlyknownascoldstorage.Suchrefrigerationchecksbothbacterialgrowthandadversechemicalreactionsthatoccurinthenormalatmosphere.Themostimportantfactorincoldstorageisambienttemperature.Asarule,thetemperatureincoldstorage
6、ishigherthan1-2℃,whichisthefreezingpointtemperatureofstoredfruitandvegetable.Storedproductmustnotbefreezinginthecoldstorage(CemerogluandAcar,1986).Ozkol(1999)reportedthatthereisheattransferinmanyplacesofcoolingsystemandthattheheattransferwidelytakesplaceduringtheprocess.
7、Tashtoush(2000)investigatedprocessofheatandmasstransferduringcoldstorageoffruitsandvegetablesanddeterminedamathematicalmodelforpresentingtheseprocesses,Equationsaresolvedfordifferentcoldstorageconditions.Thepurposeofthecalculationofcoolingloadisimportantchoosingsystemcom
8、ponentssuchascompressor,condenseretc.correctlyandeconomically(Ozkol,1999).Taner(1987)andAybers(1992)sta
