ResultsfrommeasurementsonthePV-VENTsystemsatSundevedsgade/TøndergadeSolarEnergyCentreDenmarkDanishTechnologicalInstituteSEC-R-15DraftSolarEnergyCentreDenmarkDanishTechnologicalInstituteSEC-R-15ResultsfrommeasurementsonthePV-VENTsystemsatSundevedsgade/TøndergadeSørenØstergaardJensenSolarEnergyCentreDenmarkDanishTechnologicalInstituteApril2001PrefaceThepresentreportconcludestogetherwith(Jensen,2001)SolarEnergyCentreDenmark’s(DanishTechnologicalInstitute)measuringworkinthePV-VENTproject.ThemeasuringprojectwaspartlyfinancedbyEUviatheJOULEproject“PV-VENT–Lowcostenergyeffi-cientPV-ventilationinretrofithousing”,contractno.JOR3-CT97-0160andpartlybytheDanishMinistryofEnvironmentandEnergyviatheproject“PV-VENT”,journalno.51181/97-0021.Theprojectgroupbehindtheprojectwas:CenergiaEnergyConsultants,DKFortumEnergy(formerNESTE-NAPS),SFAirVexDanmark(formerTemovexDenmark),DKFSB,DKDanishTechnologicalInstitute,DKEcofys,NLPA-Energy,DKNTNU,NCopenhagenEnergy,DKThefollowingpersonshaveparticipatedinthemeasuringproject:SørenØstergaardJensen.M.Sc.,SolarEnergyCentreDenmarkWilliamOtto,laboratorytechnician,SolarEnergyCentreDenmarkOleLarsen,laboratorytechnician,SolarEnergyCentreDenmarkLarsMolnit,student(B.Sc.),SolarEnergyCentreDenmarkBertelJensen,B.Sc.,SolarEnergyCentreDenmarkUlrikMehr,M.Sc.,SolarEnergyCentreDenmarkHansOlsen.B.Sc.,VentilationandEnvironment,TechnologicalInstituteofDenmarkJensHeidelbachAndersen,B.Sc.,CenergiaEnergyConsultantsLisbetMichaelsen,B.Sc.,CenergiaEnergyConsultantsResultsfrommeasurementsonthePV-VentsystemsatSundevedsgade/Tøndergade1stprinting,1steditionDanishTechnologicalInstituteEnergydivisionISBN:87-7756-614-9ISSN:1600-37802Listofcontent1.Introduction.............................................................................................................31.1.ThePV-VENTsystems...........................................................................................61.1.1.Controlofthesystems.................................................................