Dual mode gas turbine power plant

Details Dual mode gas turbine power plant Dual mode gas turbine power plant

1987-05-18

1989-07-11

Casaregola, Louis J.

Power plants

Combustion products used as motive fluid

Different fluids

60 39161, 60 3933, F02C 310, F02C 726

Patent

active

048459445

ABSTRACT:
Poor fuel economy of a gas turbine power plant when operating at partial loads is avoided in a construction including a main power unit 10 with a low pressure turbine engine 40 and a high pressure turbine engine 42. In normal, full load operation, the engines 40 and 42 are connected so that combustion supporting gas is first compressed in the low pressure turbine engine 40 and subsequently further compressed in the high pressure turbine engine 42 before being directed to a combustor 90 to burn fuel which is then initially expanded in the high pressure turbine engine 42 and further expanded in the low pressure turbine engine 40. Fuel economy at partial load is obtained along with the generation of some power via the high pressure unit 42 by providing valves 76, 102 which may be operated to bypass the low pressure turbine engine 40 thereby reducing the air and corresponding consumption of fuel to that required to drive only the accessory unit 112.

REFERENCES:
patent: 2095991 (1937-10-01), Lysholm
patent: 2529973 (1950-11-01), Sedille et al.
patent: 2622392 (1952-12-01), Boestad et al.
patent: 2748566 (1956-06-01), Fletcher
patent: 3813874 (1974-06-01), Bruder et al.

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