Heat Pump System Modeling

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Power [kW] / Waste heat flow [kW]MotivationRequired wasteheat fowInsufficient waste heat flow toaccomplish the customer’s demandfor comfort especially for HEVs andBEVsTemperature level of coolant too lowto fulfill the customer’s demand forcomfortHigh demand for additional heatsources especially for BEVsICE Internal Combustion EngineHEV Hybrid Electric VehicleBEV Battery Electric Vehicle© IAV · 10/2012 · oka · VI-E22 2
Power [kW]Impact of Conventional Auxiliary <strong>Heat</strong>ers• Electric heaters significantly decrease thepure electric driving range• Strong conflict between acceptabledriving range and high comfort level• Fuel heaters do not fulfill zero emissionrequirement.• Refueling an additional fuel decreasesthe driver’s comfortNew system approaches must beinvestigated to fulfill the customer’sdemand© IAV · 10/2012 · oka · VI-E22 3
Page 4 and 5: Pressure [bar]Motivation for Heat P
Page 6 and 7: RadiatorHCHVHConcept for a New Heat
Page 9 and 10: Compressor power [kW]Refrigerant Co
Page 11 and 12: Modeling a BPHE as a CondenserNusse
Page 14 and 15: Modeling a BPHE as a EvaporatorNuss
Page 16 and 17: Heat Pump System in GT - Suite© IA
Page 18 and 19: Power [kW]Validation of the Heat Pu
Page 20 and 21: Heat flow [kW]Validation of the Hea
Page 22: Thank youOleg KaplanIAV GmbHDomagks

Heat Pump System Modeling

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