The need for electric power has an another break though with back ground physics from space plasma MHD that is MHD power generation. They are classified in to two broad field one is called on open MHD cycle in which the plasma fluid is let in to atmosphere after power generation. While in the closed MHD cycle the plasma fluid is recycled and reused repeatedly. In both the case it the working temperature is any where between 3000k to 8000K based on the type of channel and the fluid used. For max efficiency, one alternate method is to break the power generation in to three basic part. Firstly, the power generation form heat gas, then form plasma chamber using Faraday, Hall or disc channel methods and since at this stage the fluid has significantly high temperature so it can be passed though ordinary gas turbine and leads to final stage. The MHD power generation technology seems promising but need more research to increase the efficiency. Currently we are able to obtain only about the efficiency of 24.5% approximately form MHD process alone and total of 53%.
Reference
[1]. Naoyuki Kayukawa, 'open-cycle magnetohydrodynamic electrical power generation: a review and future perspectives', 30, Pg 33-60, 2004.
[2]. M.H.Saidi, A.Montazeri, 'Second law analysis of a magnetohydrodynamic plasma generator.' Journal of energy, 32, pg.1603-1616, 2007.
[3]. D.A.Gurnett and A.Bhattacharjee,'Introduction to plasma physics', Cambridge Uni press, 2006.
[4]. Dr. Antonius Otto, Magnetospheric physics notes, May5, 2006.
[5]. http://en.wikipedia.org/wiki/MHD_generator
[6]. http://science.jrank.org/pages/16776/magnetohydrodynamics-%28MHD%29.html
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