Method and apparatus for controlling auxiliary fuel addition to

Details Method and apparatus for controlling auxiliary fuel addition to Method and apparatus for controlling auxiliary fuel addition to

1983-08-30

1985-05-21

Favors, Edward G.

Furnaces

Process

Incinerating refuse

110187, 110190, 110210, 236 15BD, 236 15E, 431 76, F23G 1500

Patent

active

045179069

ABSTRACT:
A two-stage starved air furnace system is controlled to simultaneously achieve desired temperatures and percent stoichiometric air operation in the primary stage by modulating transformation relay functions acting upon measured temperature deviations to change both primary combustion air and primary auxiliary burner operation. At the set-point value of percent stoichiometric air, the relay functions are modulated in reverse direction to satisfy changing heat demands.

REFERENCES:
patent: Re31046 (1982-10-01), Lombana et al.
patent: 4013023 (1977-03-01), Lombana et al.
patent: 4046085 (1977-09-01), Barry et al.
patent: 4050389 (1977-09-01), von Dreusche, Jr.
patent: 4097218 (1978-06-01), Womack
patent: 4162889 (1979-07-01), Shigemura
patent: 4182246 (1980-01-01), Lombana et al.
patent: 4421473 (1983-12-01), Londerville
patent: 4439138 (1984-03-01), Craig et al.
patent: 4474121 (1981-12-01), Lewis

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