ASHRAE.4624-2003 Recent Activities on Solar Air Conditioning

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1、4624RecentActivitiesonSolarAirConditioningC.A.Balaras,Ph.D.,P.E.A.A.Argiriou,Ph.D.MemberASHRAEMemberASHRAEE.MichelH.M.Henning,Ph.D.MemberASHRAEABSTRACTneedforimprovedindoorlivingandworkingconditions.AccordingtomarketsurveysbytheHellenicMinistryofThisp

2、aperpresentsanoverviewofsomerecentEuropeanCommerce,about95%ofair-conditioningsalesinGreeceandinternationalprojectsonsolarairconditioning(A/C).TheoccurintheperiodofMay-Augustandreachabout200,000firstpartreviewstheresultsfromarecentlycompletedEuro-units

3、(primarilysmallsplit-typeheatpumps)everyyear.Thepeanresearchprojectonthestudyandmanufacturingofauseofair-conditioningunitsinsummercausespeakelectricsmall10kW(about3ton)prototypesolar-assistedabsorptionloadsthatperiodicallyresultinpowershortagesinlarge

4、areasheatpumpcoupledwithafloorheatingandcoolingsystem.ofmetropolitancities,suchasAthens,inordertomaintaintheThesecondpartreviewsthecurrentactivitiesinaEuropeanstabilityofthenationalpowersystem.Forexample,themostprojecttoperformacomparativestudyofEurop

5、eanandrecenteventwasduringtheheatwaveatthebeginningofJulynationalR&DanddemonstrationactivitiesonsolarA/C,in92000at14:00,whenthepeakloadreached8250MW(28⋅10termsofenergy-savingpotentialandcostperformance,toBtu/h).InSpain(Pereiraetal.1995),thepowerdemand

6、forairpromotetheirfuturegrowthandmarketintegrationandtoconditioningexceeds10GW(34⋅109Btu/h).Actually,inidentifyfutureneeds.Thethirdpartreviewsthecurrentactiv-southEuropeancountries,thereisawell-establishedconnec-itiesinaprojectsupportedbytheInternatio

7、nalEnergyAgencytionbetweenthegrowthofpeakpowerelectricitydemandin(IEA)onsolar-assistedairconditioningofbuildings.summerandthegrowthofair-conditioningsalesinthesmall-andmedium-sizedmarket.INTRODUCTIONEnergyconsumptionincommercialandresidentialbuild-The

8、factthatpeakcoolingdemandinthesummerisasso-ciatedwithhighsolarenergyavailabilityoffersanopportunityingsrepresentsapproximately40%ofEurope'senergybudgettoexploitsolarthermaltechnologiesthatcanmatchcooling(EC2000).Thisisallocatedforsatisfyingthe