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1、AC-02-18-3EvaluationofCooling,Heating,andPower(CHP)forOfficeBuildingsAliA.Jalalzadeh-Azar,Ph.D.,P.E.StevenJ.SlayzakJosephP.RyanMemberASHRAEAssociateMemberASHRAEAssociateMemberASHRAEABSTRACTtotalprimaryenergyconsumptionandcostwasexaminedaswell.Applicationofcooling,heatin
2、g,andpower(CHP)forofficebuildingswasevaluatedbasedonanondimensionalINTRODUCTIONanalysisofenergycostandprimaryenergyconsumption.TwoCHPscenariosforahypotheticalofficebuildinginthreeByfacilitatingon-sitepowergenerationandutilizationofdifferentgeographicallocationswereconsi
3、dered.Gas-firedrecoverablethermalenergy,cooling,heating,andpowermicro-turbinegeneratorswereutilizedinallcasestoprovide(CHP)systemsofferameansforconservingfossilfuelandon-lineelectricityandthermalenergyforthebuildingsystems.reducingemissionsinadditiontoprovidingreliabili
4、tyinOneofthescenariosaimedatmaximumconservationoffossilsupplyingrequiredelectricalandthermalenergy.(Theroleoffuelandemissionreductionbyincorporatingthermallyacti-CHPsystemsinemissionreductionsisdiscussedinCenterforvatedcoolingandheatingsystems.TheotherscenariowasCleanAi
5、rPolicy2001.)DesignofaCHPsystemforagivenprimarilyintendedtoprovidetherequiredelectricalenergyofapplicationisinfluencedbymanyfactors,includingthebuild-thebuildingindependentlyofthelocalelectricutility.Bothingtype,operatingschedule,coolingandheatingloadscenarioswerecompar
6、edwiththebaselinesystemthatincor-profiles,electricityandfueldemands,utilitycosts,andutilityporatedelectriccoolingandgas-firedheatingsystemsutiliz-demandprofiles.Beforeformulatinganobjectivefunctionforingthelocalutilities.anoptimumornear-optimumCHPsystemdesign,however,As
7、aprerequisiteforenergyandenergycostanalysis,thethemainobjectiveforconsideringaCHPsystemhastobeelectricityandgasconsumptionprofilesofthebuildingwereestablished.Amongthepossibleobjectivesareattainingreli-evaluatedforthecasesconsideredusingasimulationabilityinenergysupply,
8、shavingelectricpeakdemand,andprogram.Inthisstudy,thetotalannualenergycostforeachmaximizingenergyefficiencyinco