Development of a combustor adapted to a coal-burning gas turbine for locomotive use was undertaken for the Locomotive Development Committee by Battelle Memorial Institute some years ago. The coal used in the course of this development was from Ohio No. 8 seam, and no systematic study was made of the effect of variation of coal properties on combustor performance. This phase of the general investigation was undertaken by the Fuels Division of the Mines Branch, Department of Mines and Technical Surveys at Ottawa, Ontario, Canada. The present paper gives a report on 23 coals of various groups within the bituminous class of the ASTM classification by rank.

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