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Auxiliary Power Units: Fuel Cells

Henne , RH and Friedrich, KA (2009) Auxiliary Power Units: Fuel Cells. In: Encyclopedia of Electrochemical Power Sources Elsevier. pp. 157-173. ISBN 9780444520937.

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Official URL: http://www.elsevier.com/

Abstract

The expression auxiliary power unit (APU) originated from aircraft, where such units based on relatively small gas turbines deliver electrical power and heat independent of the main engines. They operate preferably on the ground. At present, this expression is used more generally, and owing to economical and ecological reasons, APUs are attracting increasing interest for different mobile applications including passenger cars, trucks, buses, and marine units. Particularly, the independent operation allows, in a number of cases, the shutdown of the main engine(s) at stillstand of the automobile, thereby avoiding the idling of the engine. During this period, the APU delivers power and heat, which means an improvement of the system’s efficiency. Encouraged by the progress made in the performance of fuel cells, an increase in R&D activity for an early application in APUs is observed. Different potential APU applications with their specific operating conditions and the required fuel cell performances are discussed and relevant technological approaches together with the present state of development are explained.

Document Type:Book Section
Title:Auxiliary Power Units: Fuel Cells
Authors:
AuthorsInstitution or Email of Authors
Henne , RHrudolf.henne@dlr.de
Friedrich, KAandreas.friedrich@dlr.de
Date:November 2009
Journal or Publication Title:Encyclopedia of Electrochemical Power Sources
Refereed publication:No
In SCOPUS:No
In ISI Web of Science:No
Volume:1
Page Range:pp. 157-173
Editors:
EditorsEmail
Garche, JürgenUNSPECIFIED
Dyer, CrisUNSPECIFIED
Moseley, PatrickUNSPECIFIED
Ogumi, ZempachiUNSPECIFIED
Rand, DavidUNSPECIFIED
Scrosati, BrunoUNSPECIFIED
Publisher:Elsevier
ISBN:9780444520937
Status:Published
Keywords:auxiliary power unit, fuel cells, hybrids
HGF - Research field:Energy
HGF - Program:Efficient Energy Conversion (old)
HGF - Program Themes:E BZ - Fuel cells (old)
DLR - Research area:Energy, Transport
DLR - Program:E BZ - Fuel cells
DLR - Research theme (Project):E - Elektrochemische Prozesse (old), E - Membran-Brennstoffzellen (old), E - Hochtemperatur-Brennstoffzellen (old)
Location: Stuttgart
Institutes and Institutions:Institute of Technical Thermodynamics > Electrochemical Energy Technology
Deposited By: Prof.Dr. Kaspar Andreas Friedrich
Deposited On:14 Jan 2010 09:03
Last Modified:14 Jan 2010 09:03

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