Flame failure detection

Details Flame failure detection Flame failure detection

1991-04-18

1992-12-15

Casaregola, Louis J.

Power plants

Combustion products used as motive fluid

With safety device

60 39161, F02C 900

Patent

active

051706210

ABSTRACT:
A dual rotor gas generator of a gas turbine generator is fired with fuel delivery based on a fuel demand signal. Actual air flow is determined by sensing the low pressure rotor speed. A ratio of the fuel demand and actual air flow is calculated. Actual fuel flow is not used. Loss of flame is detected based on a fuel/air ratio as compared to a preselected value.

REFERENCES:
patent: 2589971 (1952-03-01), Skarstrom
patent: 3805517 (1974-04-01), Sewell et al.
patent: 3830055 (1974-08-01), Erlund
patent: 4597259 (1986-07-01), Moore et al.

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