The more electric aircraft—assessing the benefits

Abstract

The concept of the more electric aircraft (MEA), where electrical power is used for at least some of the on-board functions at present powered by hydraulics and pneumatics, has many claimed benefits and is far from new. However, almost all larger aircraft retain hydraulics and pneumatics.

Over recent years there has been a great deal of interest in the MEA concept, with developments in relevant technologies and their adoption in other areas of engineering. In support of UK efforts on this and related concepts, the College of Aeronautics has been performing studies since the mid 1980s to assess the benefits of changes. This paper describes the background to these studies and the relationships between them as well as some of their findings, concluding that it is important that such assessment work should be continued in the future.

Keywords

more electric aircraft (MEA)electrical power

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References

Woodford

C. G. A.

Electrics for aircraft. J. R. Aeronaut. Soc., September 1945, 49, 518–565.

Secunde

R. R.

Macosko

R. P.

Repas

D. S.

Integrated engine-generator concept for aircraft electric secondary power. NASA TM X2579, NASA Lewis Research Center, June 1972.

Tagge

G. E.

Irish

L. A.

Bailey

A. R.

Systems study for an integrated digital/electric aircraft (IDEA). NASA CR 3840, Boeing Commercial Airplane Company, January 1985.

Cronin

M. J.

et al. Integrated digital/electric aircraft concepts study. NASA CR 3841, Lockheed-California, January 1985.

Peacock

N. J.

Engine design and systems integration for propfan and high by-pass turbofan engines. In AIAA/ SAE/ASME/ASEE Twenty-Third Joint Propulsion Conference, San Diego, California, 29 June—2 July 1987, paper AIAA 87–1730.

Jones

R. I.

Considerations of the all electric aircraft. In Aerotech ‘89 Seminar on The Electric Aeroplane, NEC Birmingham 31 October—3 November 1989, paper C398/1.

Crowder

R. M.

Jones

R. I.

Collaborative research initiative into secondary power systems. Final Summary Report, CoA CIT and University of Southampton, October 1992.

Jones

R. I.

Collaborative research initiative into secondary power systems. Executive Summary Final Report, CoA CIT, January 1993.

Jones

R. I.

Considerations of the all electric (accessory) engine concept. Proc. Instn Mech. Engrs, Part G: J. Aerospace Engineering, November 1995, 209 (G4), 273–280.

10.

Jones

R. I.

The more electric aircraft: A review of activities and need for further UK action. CoA Cranfield University, June 1996.

11.

Battle launches ‘more electric aircraft’ projects. DTI Press Notice P/97/68, 25 November 1997.

12.

Jones

R. I.

The more electric aircraft: Methodologies for the assessment of the benefits and penalties of the adoption of MEA technologies. CoA Cranfield University, July 1996.

13.

Qureshi

H. H.

Collaborative research initiative into secondary power systems. Final Report of the Overall Benefits Prediction Program, CoA CIT, November 1992.

14.

LeClaire

Evaluation of the overall fuel mass penalty of an aircraft system. Aeronaut. J., May 1975, 79 (773), 225–228.

15.

Woodford

Smith

The minimisation of combat aircraft life cycle costs through conceptual design optimisation. In World Aviation Congress and Exposition, Anaheim, California, 28–30 September 1998, SAE paper 985567.

16.

Burns

J. W.

Aircraft cost estimation methodology and value of a pound derivation for preliminary design development applications. In 53rd Annual Conference of SAWE, Long Beach, California, 23–25 May 1994, SAWE paper 2228.

17.

Jones

R. I.

Study of the military more electric aircraft. Final Report January 98–July 98, CoA Cranfield University, October 1998.

18.

IEE Colloquium on All Electric Aircraft, IEE Digest 1998/260, London, 17 June 1998.

19.

IEE Colloquium on Electric Machines and Systems for the More Electric Aircraft, IEE Digest 1999/180, London, 9 November 1999.

20.

In IMechE Seminar S647 on The More Electric Aircraft and Beyond, Lucas Electrical and Electronic Systems, Solihull, 17 May 2000.

21.

More electric aircraft projects take off. Briefing Notice, DTI Interest Notice, August 2001.