Numerical analysis on a helical-channel seawater MHD generator

Author

Zhao, L.Z. ; Peng, Y. ; Li, J. ; Li, R. ; Xu, Y.Y. ; Liu, B.L. ; Sha, C.W.

Author_Institution

Inst. of Electr. Eng., Beijing, China

fYear

2012

fDate

21-24 May 2012

Firstpage

1

Lastpage

5

Abstract

The steady flow and electromagnetic fields of a demonstration helical-channel seawater MHD (Magnetohydrodynamic) generator were investigated by 3D numerical simulations and then the performance characteristics were studied. The results show that the flow and electrical fields in end regions of the helical wall are very complex. There appear small vortexes, flow irregularity, dead zones, eddy current, leakage current and MHD propulsion which cause energy losses. The calculated electromotive force from 3D simulations agrees well with the test value.

Keywords

electric potential; leakage currents; magnetohydrodynamic convertors; magnetohydrodynamic power plants; numerical analysis; seawater; vortices; 3D numerical simulation; MHD propulsion; dead zones; eddy current; electromagnetic fields; electromotive force; energy losses; flow irregularity; helical wall; helical-channel seawater MHD generator; leakage current; magnetohydrodynamic generator; small vortexes; steady flow; Current density; Educational institutions; Force; Generators; Magnetic fields; Magnetohydrodynamics; Solid modeling; Magnetohydrodynamic power generation; end effect; helical channel; marine current generation;

fLanguage

English

Publisher

ieee

Conference_Titel

Innovative Smart Grid Technologies - Asia (ISGT Asia), 2012 IEEE

Conference_Location

Tianjin

Print_ISBN

978-1-4673-1221-9

Type

conf

DOI

10.1109/ISGT-Asia.2012.6303136

Filename

6303136