G - Physics – 01 – N
Patent
G - Physics
01
N
G01N 33/22 (2006.01)
Patent
CA 2432895
The invention concerns a method for evaluating the Wobbe index of a fuel gas (G1) belonging to a specific family of gases. The inventive method comprises measurements of mass flow rates (Qm1, Qm0) of said fuel gas (G1) and of a reference gas (G0), not necessarily a fuel gas, carried out at respective absolute pressures and temperatures and in a sonic flow through a micro-nozzle (3), and an evaluation of the fuel gas Wobbe index (W) by an empirical affine law (W = A x Y + B) based on the results of the measurement carried out with the fuel gas /G1) and the reference gas (G0), and established for all the gases of the family concerned.
L'invention concerne notamment un proc~d~ pour ~valuer l'indice de Wobbe d'un gaz combustible (G1) appartenant ~ une famille de gaz d~termin~e. Le proc~d~ de l'invention comprend des mesures de d~bits massiques (Qm1, Qm0) de ce gaz combustible (G1) et d'un gaz de r~f~rence (G0), non n~cessairement combustible, effectu~es ~ des pressions et temp~ratures absolues respectives et en ~coulement sonique ~ travers une micro-tuy~re (3), et une ~valuation de l'indice de Wobbe (W) du gaz combustible par une loi affine empirique (W = A x Y + B) exploitant les r~sultats des mesures effectu~es avec le gaz combustible (G1) et avec le gaz de r~f~rence (G0), et ~tablie pour tous les gaz de la famille consid~r~e.
Cordier Remy
Lantoine Laurent
Gaz de France
Gdf Suez
Mcfadden Fincham
LandOfFree
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