Device for determining the Wobbe index of a gas mixture

Details Device for determining the Wobbe index of a gas mixture Device for determining the Wobbe index of a gas mixture

1994-06-08

1996-01-09

Warden, Robert J.

Chemical apparatus and process disinfecting, deodorizing, preser

Analyzer, structured indicator, or manipulative laboratory...

Means for analyzing gas sample

422 98, 374 36, 374 37, 137 7, 137100, 73 232, 73 3001, G01N 3112

Patent

active

054826799

ABSTRACT:
Device for determining the Wobbe index of a first gas mixture, including a Wobbe index meter having a mixing chamber, and a feed system for supplying a first gas mixture and an oxidation gas to the mixing chamber of the Wobbe index meter. The feed system includes structure for supplying the first gas mixture to the mixing chamber via a first number of openings, structure for supplying an oxidation gas to the mixing chamber via a second number of openings, structure for keeping a constant ratio between the a quantity of first gas mixture and the a quantity of oxidation gas supplied to the mixing chamber, structure for burning the second gas mixture formed in the mixing chamber and structure for determining the oxygen content of the combustion gas obtained after combustion. In accordance with the invention, the ratio of the diameters of the openings for the supply of the first gas mixture and the oxidation gas to the mixing chamber is chosen such that the Reynolds numbers of the flows of the first gas mixture and the oxidation gas through the openings are equal, and such that the number of openings is determined by the desired ratio of the flow rates of the first gas mixture and the oxidation gas.

REFERENCES:
patent: 4318868 (1982-03-01), Showwalter et al.
patent: 4359284 (1982-11-01), Kude et al.
patent: 4380400 (1983-04-01), Searle
patent: 4382698 (1983-05-01), Szonntagh
patent: 4384792 (1983-05-01), Sommers et al.
patent: 4634559 (1987-01-01), Eckert
patent: 4941345 (1990-07-01), Altemark et al.
patent: 5288149 (1994-02-01), Meyer
patent: 5329955 (1994-07-01), Gensler et al.

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