Combustible gas analyzer

Details Combustible gas analyzer Combustible gas analyzer

1981-03-17

1983-05-10

Goldstein, Herbert

Thermal measuring and testing

Calorimetry

Heat value of combustion

G01N 2522

Patent

active

043826989

ABSTRACT:
A combustible gas analyzer for determining the Wobbe Index of a combustible gas uses a constant pressure combustible gas supply and constant flow rate air supply to provide oxygen and gas for combustion. The air is supplied directly to be mixed with the combustible gas while the gas is passed through a variable orifice or valve before mixing with the air supply. A zirconium oxide detector is arranged to measure the oxygen content of the combustion products to enable a predetermined oxygen level to be reached. The valve is operated by a valve control response to the output of the zirconium oxide detector to maintain the preset oxygen level. The position of the valve is monitored as a representation of the Wobbe Index of the combustible gas.

REFERENCES:
patent: 3393562 (1968-07-01), Breedlove
patent: 3485606 (1969-12-01), Olivier
patent: 4125123 (1978-11-01), Clingman, Jr.

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