%0 Journal Article
%T performanceinvestigationonasun£¿trackingcpcheatpipeevacuatedtubesolarcollector
%A sunwei
%A wangyinfeng
%A chenhaijun
%A matingting
%A zhajunjie
%A yangmoucun
%A zhuyuezhao
%J ÈÈÁ¦·¢µç
%P 26-30
%D 2013
%X asun£¿trackingcpc(compoundparabolicconcentrator)heatpipeevacuatedtubesolarcollector(st£¿cpc£¿hpet£¿sc)withaconcentrationratioof2.3wassetup,whichintegratedthecpcandsun£¿trackingtechnologyintoheatpipeevacuatedtubecollectorthroughasimplecrank£¿linkmechanism.theheatcollectionperformanceofthisst£¿cpc£¿hpet£¿scwasexperimentallytestedunderconditionsoffixed,intermittent£¿trackingandcontinuous£¿tracking,respectively.theeffectoftrackingmodeonheatcollectiontimeandefficiencywasanalyzed.moreover,theheatefficiencywasfittedandnormalized,anditsinfluencingfactorswereanalyzed.theresultsshowedthat,thesun£¿trackingcpcscouldimprovethermalperformanceoftheheatcollectoreffectively,amongwhichthesimpleintermittenttypewaspreferred.efficientworkingtimeofthest£¿cpc£¿hpet£¿scundertrackingmodeswas6hours,2timesofthatunderthefixedcondition.thedailyaverageheatefficiencyofthest£¿cpc£¿hpet£¿scundertrackingconditionswas45%,about16%higherthanthatunderthefixedcondition.thenormalizedfittingregressioncoefficientswerebothlargerthan0.936,sothefittingprocesswasreliable.finally,theefficiencyinterceptsandheatlosscoefficientsofthest£¿cpc£¿hpet£¿scwereobtained.thisnovelst£¿cpc£¿hpet£¿sccanbeappliedinsolarmedium£¿temperaturethermalutilizationfields.
%K cpc
%K heatpipeevacuatedtubecollector
%K suntracking
%K thermalperformance
%K efficiencynormalizationmethod
%U http://rlfd.paperopen.com//oa/darticle.aspx?type=view&id=201311006