Power plants – Combustion products used as motive fluid – With exhaust treatment
Patent
1971-11-26
1976-07-20
Gordon, Clarence R.
Power plants
Combustion products used as motive fluid
With exhaust treatment
60 3952, 60 3965, 60 3966, 60DIG11, 431116, F02C 710
Patent
active
039698920
ABSTRACT:
A combustion system with provisions to minimize undesired exhaust products including carbon monoxide, incompletely burned fuel, and oxides of nitrogen. Air entering the combustion zone of the combustion apparatus is mixed with a relatively large amount of recirculated combustion products, preferably about twice the weight of the fresh air entering the combustion zone. The combustion products which are recirculated are cooled by heat exchange with air flowing to a dilution zone of the combustion apparatus where the combustion products and air are mixed to provide the high temperature gas output of the system which is the motive fluid of a gas turbine.
The recirculated combustion products are cooled to reduce temperature in the combustion zone and thereby nitrogen oxide formation and the heat extracted from the recirculated combustion products is transferred to the dilution air. The combustion products delivered from the combustion zone to the dilution zone may be diverted ahead of or after the heat exchange. The additional air may be mixed with the recirculated combustion products either before or behind the heat exchanger.
REFERENCES:
patent: 2502878 (1950-04-01), Newcombe
patent: 2677236 (1954-05-01), Grinsted
patent: 2718754 (1955-09-01), Lewis
patent: 3323304 (1967-06-01), Llobet
patent: 3656298 (1972-04-01), Wade
Stettler Richard J.
Verdouw Albert T.
Fitzpatrick Paul
General Motors Corporation
Gordon Clarence R.
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