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Thermomanagement and cabin climatization in electric vehicles using a hydrogen based A/C-unit

Hegner, Robert and Dittus, Holger and Schier, Michael and Friedrich, Horst and Weckerle, Christoph and Bürger, Inga (2019) Thermomanagement and cabin climatization in electric vehicles using a hydrogen based A/C-unit. 2019 Fourteenth International Conference on Ecological Vehicles and Renewable Energies (EVER), 08.-10. May 2019, Monte Carlo.

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Abstract

In this paper a hydrogen-based air-conditioning unit, which can also function as range extender for electric vehicles, is studied. This hydrogen A/C-unit utilizes the endothermic reaction of hydrogen desorption from metal hydrides to generate a cooling effect. Within DLR’s Next Generation Car project a prototype system was developed and characterized on a test bench. This system represents a world’s first proof of concept, where two metal hydride reactors are coupled to a fuel cell to establish a process which provides cooling power without any electrical power input. The measured cooling power is directly coupled to the hydrogen mass flow taken from the reactors, thus being indirectly linked to the fuel cells electrical power output. A maximal heat flow of 0.72 kW was detected at 5 kW electric fuel cell power. The paper concludes with the discussion of an appropriate vehicle integration concept for this innovative technology.

Item URL in elib:https://elib.dlr.de/129569/
Document Type:Conference or Workshop Item (Speech)
Title:Thermomanagement and cabin climatization in electric vehicles using a hydrogen based A/C-unit
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Hegner, RobertRobert.Hegner (at) dlr.deUNSPECIFIED
Dittus, HolgerHolger.Dittus (at) dlr.dehttps://orcid.org/0000-0002-3981-5560
Schier, MichaelMichael.Schier (at) dlr.deUNSPECIFIED
Friedrich, HorstHorst.Friedrich (at) dlr.deUNSPECIFIED
Weckerle, ChristophChristoph.Weckerle (at) dlr.deUNSPECIFIED
Bürger, Ingainga.buerger (at) dlr.deUNSPECIFIED
Date:12 May 2019
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:hydrogen, air-conditioning, thermomanagement, electric vehicle, absorption
Event Title:2019 Fourteenth International Conference on Ecological Vehicles and Renewable Energies (EVER)
Event Location:Monte Carlo
Event Type:international Conference
Event Dates:08.-10. May 2019
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Transport
HGF - Program Themes:Road Transport
DLR - Research area:Transport
DLR - Program:V ST Straßenverkehr
DLR - Research theme (Project):V - NGC Antriebssystem und Energiemanagement
Location: Stuttgart
Institutes and Institutions:Institute of Vehicle Concepts > Vehicle Energy Concepts
Institute of Engineering Thermodynamics > Thermal Process Technology
Deposited By: Schier, Michael
Deposited On:14 Oct 2019 13:05
Last Modified:14 Oct 2019 13:05

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