Power plants – Combustion products used as motive fluid – Multiple fluid-operated motors
Patent
1995-08-31
1997-09-09
Freay, Charles G.
Power plants
Combustion products used as motive fluid
Multiple fluid-operated motors
60 39463, F02C 618
Patent
active
056644140
ABSTRACT:
Apparatus for generating power includes a gas turbine unit having a compressor for compressing ambient air and producing compressed air, a combustion chamber to which the compressed air is supplied, a source of relatively high grade fuel for burning in the combustion chamber and producing combustion gases, and a gas turbine connected to generator and to the compressor for expanding the combustion gases and producing exhaust gases. The apparatus further includes a combustor that burns relatively low grade fuel, and produces combustion products, and an indirect contact heat exchanger responsive to the combustion products for heating the compressed air before the latter is applied to the combustion chamber, and for producing cooled combustion products. In addition, an energy converter is provided having an organic working fluid responsive to the exhaust gases for converting heat in the exhaust gases to electricity. Finally, the apparatus of the invention serves to minimize the consumption of high grade fuel in the presence of changes in the heating value of the low grade fuel.
REFERENCES:
patent: 4267692 (1981-05-01), Earnest
patent: 4271664 (1981-06-01), Earnest
patent: 4785622 (1988-11-01), Plumley et al.
patent: 4998408 (1991-03-01), Wiekmeijer
patent: 5072675 (1991-12-01), Fowler
patent: 5457951 (1995-10-01), Johnson et al.
Bronicki Lucien Y.
Doron Benjamin
Sinai Joseph
Freay Charles G.
Ormat Industries Ltd.
Sandler Donald M.
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