NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Fuel Cell Auxiliary Power Study Volume 1: RASER Task Order 5This study evaluated the feasibility of a hybrid solid oxide fuel cell (SOFC) auxiliary power unit (APU) and the impact in a 90-passenger More-Electric Regional Jet application. The study established realistic hybrid SOFC APU system weight and system efficiencies, and evaluated the impact on the aircraft total weight, fuel burn, and emissions from the main engine and the APU during cruise, landing and take-off (LTO) cycle, and at the gate. Although the SOFC APU may be heavier than the current conventional APU, its weight disadvantage can be offset by fuel savings in the higher SOFC APU system efficiencies against the main engine bleed and extraction during cruise. The higher SOFC APU system efficiency compared to the conventional APU on the ground can also provide considerable fuel saving and emissions reduction, particularly at the gate, but is limited by the fuel cell stack thermal fatigue characteristic.
Document ID
20070014605
Acquisition Source
Glenn Research Center
Document Type
Contractor Report (CR)
Authors
Mak, Audie
(Honeywell Engines, Systems and Services Phoenix, AZ, United States)
Meier, John
(Honeywell Engines, Systems and Services Phoenix, AZ, United States)
Date Acquired
August 23, 2013
Publication Date
February 1, 2007
Subject Category
Aircraft Propulsion And Power
Report/Patent Number
E-15725
21-13153
NASA/CR-2007-214461-VOL1
Funding Number(s)
CONTRACT_GRANT: NAS3-01136
WBS: WBS 561581.02.08.03.06.01
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
No Preview Available