Reheat enhanced gas turbine powerplants

Power plants – Combustion products used as motive fluid – With combustible gas generator

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Details

60 3917, 60 39511, F02C 328, F02C 710

Patent

active

058815490

ABSTRACT:
A gas turbine driven powerplant in which a mixture of steam and a combustible hydrocarbon, such as methane, is reformed or partially oxidized to produce a hydrogen-rich fuel which is used to fuel both the primary combustor and a reheat combustor positioned upstream of the final turbine stage, such as the power turbine. Reheat combustion is effected by injecting the hydrogen-rich fuel into the gas flow path between turbine stages where the fuel auto ignites with complete combustion occurring at a nominal distance after injection into the air stream. Further, the hydrogen-rich fuel can be used as a coolant for the turbine stages to allow higher reheat temperatures to be achieved.

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