Power plants – Combustion products used as motive fluid – Multiple fluid-operated motors
Patent
1994-02-28
1995-10-17
Nelson, Peter A.
Power plants
Combustion products used as motive fluid
Multiple fluid-operated motors
60 3917, 60 3904, 60 39181, A02C 310
Patent
active
RE0350613
ABSTRACT:
A fuel with or without fuel bound nitrogen (FBN) is burned in a high pressure machine (20 atm) comprising fuel and air compressors, combustor and turbine at an ER of about 2-3 and temperature below the threshold for creating thermal NO.sub.x. Prompt and FBN NO.sub.x are avoided due to the rich mixture, having a dearth of O and OH, producing CO and H.sub.2 and little CH. The turbine cools the products to reduce their temperature. The cooled products are mixed with the remaining air and burned at a temperature below the thermal NO.sub.2 threshold temperature at an ER of about 0.6. Commercial stand alone machines can be used for the rich and for the lean combustors wherein air and fuel are supplied to the rich combustor and only air and the cooled combustion products of the rich machine are supplied to the lean combustor.
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General Electric Company
Nelson Peter A.
Webb II Paul R.
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