Thermal measuring and testing – Calorimetry – Heat value of combustion
Patent
1981-06-10
1983-08-02
Goldstein, Herbert
Thermal measuring and testing
Calorimetry
Heat value of combustion
G01F 168
Patent
active
043962998
ABSTRACT:
Disclosed are methods and apparatus for measuring and determining the total energy flow, that is, BTUs per minute, of combustible gas flowing through a line such as a pipeline. One method includes taking a continuous sample of the gas flowing through the line which sample is a constant proportion of the gas flowing through the line, and burning the sample in equipment which supplies air to the sample in an amount which maximizes its burning temperature. The flow rate of air which produces the maximum burning temperature of the sample is a flow rate which is directly proportional to the rate of energy flow in the main pipeline. Alternately, the flow rate of air which produces a stoichiometric mixture is directly proportional to the rate of energy flow in the main pipeline. Still further, if an excess of air is flowed to the flame, the amount of excess unconsumed oxygen is also a function of the rate of energy flow in the main pipeline. One or another of these parameters is measured. Also disclosed is equipment capable of effectively performing the several steps of the method.
REFERENCES:
patent: 2139768 (1938-12-01), Naiman
patent: 2574665 (1951-11-01), Schuller
patent: 3777562 (1973-12-01), Clingman, Jr.
patent: 4359284 (1982-11-01), Kude et al.
Clingman, Jr. William H.
Kennedy Lyn R.
Cantrell Thomas L.
Goldstein Herbert
Moore Stanley R.
Precision Machine Products, Inc.
Schley Joseph H.
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