解析太阳能热水工程分析

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1、RETScreen®InternationalCleanEnergyDecisionSupportCentrewww.retscreen.netCLEANENERGYPROJECTANALYSIS:RETS®ENGINEERING&CASESTEXTBOOKCREENSOLARWATERHEATINGPROJECTANALYSISCHAPTERDisclaimerThispublicationisdistributedforinformationalpurposesonlyanddoesnotnecessarilyreflecttheviewsoftheGovernmentofCanada

2、norconstituteanendorsementofanycommercialproductorperson.NeitherCanada,noritsministers,officers,employeesandagentsmakeanywarrantyinrespecttothispublicationnorassumeanyliabilityarisingoutofthispublication.©MinisterofNaturalResourcesCanada2001-2004.ISBN:0-622-35674-8Catalogueno.:M39-101/2003E-PDF©Mi

3、nisterofNaturalResourcesCanada2001-2004.TABLEOFCONTENTS1SOLARWATERHEATINGBACKGROUND...............................51.1SolarWaterHeatingApplicationMarkets................................61.1.1Servicehotwater...................................................61.1.2Swimmingpools......................

4、..............................81.2DescriptionofSolarWaterHeatingSystems..............................91.2.1Solarcollectors....................................................101.2.2Balanceofsystems.................................................132RETSCREENSOLARWATERHEATINGPROJECTMODEL...........

5、.......152.1EnvironmentalVariables............................................162.1.1Basicsofsolarenergy...............................................182.1.2Tiltedirradiance....................................................192.1.3Skytemperature...................................................

6、202.1.4Coldwatertemperature..............................................222.1.5Estimatedloadcalculation.............................................252.2SolarCollectors..................................................262.2.1Glazedorevacuatedcollectors.........................................262.

7、2.2Unglazedcollectors.................................................272.2.3Incidenceanglemodifiers.............................................282.2.4Pipingandsolartanklosses....................................