Method for optimizing the operating efficiency of a fossil fuel-

Details Method for optimizing the operating efficiency of a fossil fuel- Method for optimizing the operating efficiency of a fossil fuel-

1994-04-11

1995-06-13

Yuen, Henry C.

Furnaces

Process

Burning pulverized fuel

110264, F23D 100

Patent

active

054232724

ABSTRACT:
A method of operating a fossil fuel-fired power generation system (10, 10', 10", 10'") in order to thereby optimize the operating efficiency thereof. The fossil fuel-fired power generation system (10, 10', 10", 10'"), which may or may not include an SCR (56), includes at least a fossil fuel-fired steam generator (12) having a burner region (16) wherein there is effected the combustion of fossil fuel and air such that gases of combustion are produced therefrom, a first heat transfer surface (32) located downstream of the burner region (16) of the fossil fuel-fired steam generator (12), a bypass (44,58,64) around the first heat transfer surface (32,32a), an air preheater (14) located downstream of the first heat transfer surface (32,32a), first and second flow paths from the burner region (16) of the fossil fuel-fired steam generator (12) to the air preheater (14) for the gases of combustion, a sensor (54) for sensing the temperature of the gases of combustion exiting from the air preheater (14), and when an SCR (56) is included a sensor (55) for sensing the temperature of the gases entering the SCR (56).

REFERENCES:
patent: 4160009 (1979-07-01), Hamabe
patent: 4220633 (1980-09-01), Pirsh
patent: 4602573 (1986-07-01), Tanca
patent: 5020454 (1991-06-01), Hellewell et al.
patent: 5054436 (1991-10-01), Dietz
patent: 5189964 (1993-03-01), Rich, Jr.

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