Method and apparatus for determining the wobbe index of...

Details Method and apparatus for determining the wobbe index of... Method and apparatus for determining the wobbe index of...

G - Physics

01

N

73/95

G01N 25/22 (2006.01) G01N 25/54 (2006.01) G01N 31/12 (2006.01) G01N 33/00 (2006.01)

Patent

CA 1168901

ABSTRACT OF DISCLOSURE 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 composi- tion. The fuel content of the mixture is adjusted in res- ponse to the sensor output signal until the certain com- bustion product composition is attained and the Wobbe Index determined from a known relationship between the heating value of the fuel constitutents and the amount of oxygen required for the combustion thexeof at said certain combus- tion product composition and the pressure differential across the fuel flowmeter. Calibration of the system may be accomplished with standard gases.

397890

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