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Title: Feasibility Of A Microcalorimeter Sensor For The Continuous Measurement Of The Heating Value Of Natural Gas
Author: J.R. Stetter, M.W. Findlay, And C. Yue, Max Klein
Source: 1990 International Symposium on Fluid Flow Measurement
Year Published: 1990
Abstract: A microcalorimeter for measuring the heating value in flowing natural gas has been developed and found effective in bench-scale tests. The device, consisting of a tiny catalyst-bead sensor, a solenoid manifold for flow control and sample injection, and a dedicated microprocessor circuit for system control and data acquisition, has been used in the analysis of more than 4500 samples, at three-minute intervals, in a one month period. In tests with a number of synthetic gas compositions, as well as four authentic natural gas samples, the unit achieved precision of better than 0.02% in best cases, leading to the suggestion that an accuracy of at least 0.5% can be expected in a field instrument. A conceptual design for a practicable portable field instrument has been completed.

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