Calorimeter

Details Calorimeter Calorimeter

G - Physics

01

N

73/95

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

Patent

CA 1183370

-10- ABSTRACT OF THE DISCLOSURE A calorimeter and method of obtaining the calorific value of a test gas comprises a pair of constant flow pumps one for supplying air at known volumetric flow and the other for supplying a test gas at known volumetric flow. The known volumetric flow of air if maintained at a level sufficient to provide enough oxygen to fully burn all oxidizable components of the test gas. The air and test gas are mixed and catalytically burned in a heated block and the combustion products are thereafter supplied to an electrochemical oxygen measuring cell which measures the remaining oxygen in the mixture. A circuit arrangement is utilized to obtain a value pro- portional to the difference between the remaining oxygen and original amount of oxygen which value is proportional to the amount of oxygen util- ized and in turn proportional to calorific value of the test gas.

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