Method and apparatus for determining the Wobbe index of gaseous

Details Method and apparatus for determining the Wobbe index of gaseous Method and apparatus for determining the Wobbe index of gaseous

1981-03-17

1982-11-16

Goldstein, Herbert

Thermal measuring and testing

Calorimetry

Heat value of combustion

G01N 2522

Patent

active

043592848

ABSTRACT:
A method and apparatus for determining the Wobbe Index of gaseous fuels is disclosed in which a mixture of sample fuel, the flow of which is monitored by pressure differential across a flowmeter, and a substantially constant amount of air is burned in the presence of an electrochemical sensor which exhibits a rapid change in output signal about a certain combustion product composition. The fuel content of the mixture is adjusted in response to the sensor output signal until the certain combustion product composition is attained and the Wobbe Index determined from a known relationship between the heating value of the fuel constituents and the amount of oxygen required for the combustion thereof at said certain combustion product composition and the pressure differential across the fuel flowmeter. Calibration of the system may be accomplished with standard gases.

REFERENCES:
patent: 3393562 (1968-07-01), Breedlove
patent: 3783684 (1974-01-01), De Livois
patent: 4315430 (1982-02-01), Szonntagh

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