Measuring heating value using predetermined volumes in non-catia

Details Measuring heating value using predetermined volumes in non-catia Measuring heating value using predetermined volumes in non-catia

1996-10-18

1998-10-13

Gutierrez, Diego F. F.

Thermal measuring and testing

Calorimetry

Heat value of combustion

374 36, G01N 2522

Patent

active

058202609

ABSTRACT:
The heating value of a sample gas is calculated by a microcontroller (12) from the heating value of a reference gas, and from an oxidation energy ratio determined as the gas is combusted by a flameless combustion process. The combustible gas is mixed with a combustion supporting gas, such as air, in a volume chamber (4) and injected into a combustion device (8, 50) in which a body of inert material (26, 51, 53) is heated above the auto-ignition temperature of the gas mixture. The inert material (26, 51, 53) is arranged to have a void dimension that is small enough to prevent the formation of an open flame during combustion. The process is repeated with a sample gas. During the injection cycle, the microcontroller (12) receives signals which monitor the power of combustion. The microcontroller (12) calculates the heating value of the sample gas and generates an output signal to a visual display or other output device.

REFERENCES:
patent: 4351614 (1982-09-01), Garnier
patent: 4533258 (1985-08-01), Milovidov
patent: 5012432 (1991-04-01), Stetter et al.
patent: 5165884 (1992-11-01), Martin et al.
patent: 5201581 (1993-04-01), Vander Heyden et al.
patent: 5226728 (1993-07-01), Vander Heyden
patent: 5320518 (1994-06-01), Stilger et al.
patent: 5482679 (1996-01-01), Dijkstra et al.

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