Improved Specific Fuel Consumption of Open Cycle Gas Turbines by Utilization of Waste Heat
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Because of the recent sharp rise in fuel costs, the U. S. Navy is re-emphasizing methods to reduce the specific fuel consumption of gas turbine powered ships to be introduced in future designs. This paper presents the results of a study in which the specific fuel consumption (SFC) of open cycle gas turbines was reduced by two alternate methods of utilizing the waste heat: (a) generation of steam for combined gas and steam turbine power (COGAS) from an existing engine design, and (b) incorporation of a recuperator for a new engine design.
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