G - Physics – 01 – N
Patent
G - Physics
01
N
G01N 21/31 (2006.01) G01F 1/32 (2006.01) G01F 15/04 (2006.01) G01N 21/35 (2006.01) G01N 25/20 (2006.01) G01N 33/22 (2006.01)
Patent
CA 2324903
The invention concerns a device (10) for measuring calorific energy contained in a fuel gas transported in a pipe (16) comprising a gas meter (12) measuring a volume V in pressure conditions P and temperature conditions T of a gas circulating in said pipe and an apparatus (14; 52; 63) to determine the gas calorific power H. The invention is characterised in that said apparatus for determining the calorific power measures at least one physical variable proportional to the number of molecules of the gas different constituents in a given volume and is placed as near as possible to the gas meter so as to determine the calorific power H (P, T) in similar pressure P and temperature T conditions as those wherein the gas volume (P, T) is measured, said device then determining the calorific energy H (P, T) V (P, T) contained in the gas.
L'invention est relative à un dispositif (10) de mesure de l'énergie calorifique contenue dans un gaz combustible transporté dans une conduite (16) comprenant un compteur de gaz (12) mesurant un volume V de gaz dans les conditions de pression P et de température T du gaz circulant dans ladite conduite et un appareil (14; 52; 63) de détermination du pouvoir calorifique H du gaz, caractérisé en ce que ledit appareil de détermination du pouvoir calorifique mesure au moins une grandeur physique proportionnelle au nombre de molécules des différents constituants du gaz dans un volume donné et est placé aussi près que possible du compteur de gaz afin de déterminer le pouvoir calorifique H (P, T) dans les mêmes conditions de pression P et de température T que celles dans lesquelles le volume V (P, T) de gaz est mesuré, ledit dispositif déterminant ensuite l'énergie calorifique H (P, T) V (P, T) contenue dans le gaz.
Dominguez Didier
Froelich Benoit
LandOfFree
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