Power plants – Combustion products used as motive fluid
Patent
1994-12-19
1996-05-07
Casaregola, Louis J.
Power plants
Combustion products used as motive fluid
60 3959, F02C 330
Patent
active
055134882
ABSTRACT:
A process for producing mechanical power utilizing compressed and humidified hot air and a fuel, which are mixed together and combusted and the resulting hot combustion gas is expanded through a gas turbine. The air is initially compressed and intercooled against a water stream, and then further compressed and passed directly to a heat recovery unit where it is humidified using the water from the compressed air intercooling step. The compressed humidified air is further heated against hot turbine exhaust gas and combined with a fuel in a combustor, and the resulting hot combustion gas is expanded through a gas turbine to produce mechanical power needed for driving the air compression. The hot turbine exhaust gas is cooled countercurrently against the compressed humidified air stream and against the water stream, and then discharged to the atmosphere. By eliminating a usual separate air aftercooling and saturator unit upstream of the air combined humidifying and heating step, process thermal efficiency for the present process is increased and equipment cost reduced.
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Casaregola Louis J.
Foster Wheeler Development Corporation
Willis Charles L.
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