Development of thermomagnetic engine for exhaust heat recovery

Author

Takahashi, Yutaka ; Nishikawa, Masahiro

Author_Institution

Graduate Sch. of Eng., Osaka Univ., Suita, Japan

fYear

2003

fDate

March 30 2003-April 3 2003

Lastpage

12

Abstract

In this report, the high output power thermomagnetic engine can be de designed. In order to decrease the eddy current braking loss, the disc type rotor is designed as piling up discs with 400 mm in diameter. 0.5 mm in thickness and 40 mm in width. The disc consists of the temperature sensitive magnetic material Fe-Ni (31.5 %) alloy which has the maximum value of temperature gradient of magnetic flux density in comparison with other Ni contents. The power per disc is found to be 1.48 W at the rotation speed of 0.4 rps in the optimized engine.

Keywords

eddy current losses; ferromagnetic materials; heat engines; heat recovery; iron alloys; magnetic flux; nickel alloys; rotors; thermomagnetic effects; 0.5 mm; 40 mm; 400 mm; disc type rotor; eddy current braking loss; heat recovery; magnetic flux density; rotation speed; temperature sensitive magnetic material; thermomagnetic engine; Eddy currents; Engines; Magnetic fields; Magnetic flux; Magnetic materials; Nickel alloys; Power generation; Rotors; Saturation magnetization; Temperature sensors;

fLanguage

English

Publisher

ieee

Conference_Titel

Magnetics Conference, 2003. INTERMAG 2003. IEEE International

Conference_Location

Boston, MA, USA

Print_ISBN

0-7803-7647-1

Type

conf

DOI

10.1109/INTMAG.2003.1230545

Filename

1230545