This paper describes the results of the first experiments in the operation of a magnetohydrodynamic (MHD) generator on coal at simulated central power conditions. The microscopic examination of the generator after one hour of operation shows no damage to any of the electrode or insulator structures. The relations between these experiments and the full-scale central power direct coal fired plant are discussed along with the problems that have been solved and those that still remain to be solved before this technology can be put into application.

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