Design of a turbo-expander driven generator for energy recovery in automotive systems

Author

Mergiotti, F. ; Crescimbini, F. ; Solero, L. ; Lidozzi, A.

Author_Institution

Dept. of Mech. & Ind. Eng., Univ. ROMA TRE, Rome, Italy

fYear

2010

fDate

6-8 Sept. 2010

Firstpage

1

Lastpage

6

Abstract

This paper deals with the design solution adopted for a high-speed axial-flux permanent-magnet (AFPM) generator devoted to supplementing power in automotive 42V electrical systems. The AFPM generator is suitably designed to be directly coupled with a radial turbo-expander which provides recovery of kinetic energy available from the exhaust gases of an internal-combustion engine. The paper describes the proposed 4 kW power rating generating system and discusses various issues resulting from electromagnetic, thermal and mechanical design of the high-speed AFPM generator.

Keywords

automotive electronics; permanent magnet generators; turbogenerators; automotive electrical systems; automotive systems; electromagnetic design; energy recovery; high-speed axial-flux permanent-magnet generator; internal-combustion engine; kinetic energy; mechanical design; power 4 kW; thermal design; turbo-expander driven generator; voltage 42 V; Generators; Iron; Magnetic cores; Magnetomechanical effects; Rotors; Stator cores; Windings; 42 V Automotive Electrical Systems; Axial-Flux Permanent-Magnet Machines; High-Speed Generators;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Machines (ICEM), 2010 XIX International Conference on

Conference_Location

Rome

Print_ISBN

978-1-4244-4174-7

Electronic_ISBN

978-1-4244-4175-4

Type

conf

DOI

10.1109/ICELMACH.2010.5607830

Filename

5607830