Power plants – Motive fluid energized by externally applied heat – Power system involving change of state
Patent
1989-02-03
1990-02-06
Ostrager, Allen M.
Power plants
Motive fluid energized by externally applied heat
Power system involving change of state
60670, F01K 734
Patent
active
048979996
ABSTRACT:
In a multi-stage steam power plant a portion of the bleed steam is passed through a heat exchanger in the combustion air input duct to preheat the combustion air. The condenser output water is also passed through a heat exchanger in the combustion air input duct and then, before returning to the boiler feed water line, is passed through a heat exchanger in the flue and then a further heat exchanger in the air input duct. In this way heat from the condensate is retained in the system and heat from the flue gas is returned to the intake combustion air.
REFERENCES:
patent: 1656985 (1928-01-01), Monroe
patent: 3032999 (1962-05-01), Pacault
patent: 3835650 (1974-09-01), Chesmejef
patent: 3913331 (1975-10-01), Conwell
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