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Title: Numerical study of an AC MHD generation with doublesideexciting winding
Authors: Intani, P. 
Buttapeng, C. 
Sasaki, T. 
Kikuchi, T. 
Harada, N. 
Keywords: AC MHD generation;Linear generator;Magnetohydrodynamic;MHD induction generator;Mhu generator;Nagaoka university of technology;Plasma application
Issue Date: 2011
Publisher: Scopus
University of the Thai Chamber of Commerce
Source: P. Intani, C. Buttapeng, T. Sasaki, T. Kikuchi, N. Harada (2011) Numerical study of an AC MHD generation with doublesideexciting winding. IEEJ Transactions on Power and Energy Vol.130 No.10, 903-909.
Abstract: This paper studies physical phenomena, performance and optimal operating point of an AC MHD generator under the slip value by using a numerical simulation. The doubleside exciting winding of the generator is considered. Its structure consists of a channel, an insulator and stators. Channel type is a flat rectangular and the liquid flows along the channel as a conductor.Channel wall acted as an insulator separates metal fluid and stator coils. The top and bottom stator winding of the generator is connected to polyphase system. Under this condition, it can produce a magnetic field by means of time harmonic function in the same direction of the metal fluid. An interaction between traveling wave and metal fluid is explained by finite element method under Maxwell's equation and Ohm law. The distribution of magnetic vector potential and magnetic flux density throughout channel is evidently shown in xyplane.Power flow in AC MHD generator is evaluated by slip value. The optimal operating point of an AC MHD generator performance is reported by active power 0.99 kW, reactive power 50 kVAR, mechanical power 1.58 kW, power dissipation 0.59 kW and electrical efficiency 62.5%.
Rights: This work is protected by copyright. Reproduction or distribution of the work in any format is prohibited without written permission of the copyright owner.
Appears in Collections:RSO: Journal Articles

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