Gas sampling method and dilution tunnel therefor

Details Gas sampling method and dilution tunnel therefor Gas sampling method and dilution tunnel therefor

1993-08-25

1995-05-02

Chilcot, Jr., Richard E.

Measuring and testing

Gas analysis

Gas of combustion

73 3107, G01N 122

Patent

active

054109078

ABSTRACT:
Emission gasses from an engine exhaust pipe are collected through an inlet of a dilution tunnel which is an elongated, hollow tube. The inlet is spaced from the exhaust pipe to also admit surrounding air. The air and emissions are mixed in the tunnel by a screen in the tunnel. A probe in the tunnel diverts a portion of the mixture to gas analyzers. Prior to analysis the mixture may be condensed, filtered or otherwise processed.

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