Stack gas measurement device and method thereof

摘要

A gas sampling device includes an analysis block defining a first portion of a chamber and a dilution block defining a second portion of the chamber. The sampling device includes an exhaust gas orifice at the first portion for withdrawing gas from the chamber in response to an applied suction, a sample gas orifice at the second portion to modify passage of a sample gas entering the chamber in response to the suction, and a dilution gas orifice at the second portion to modify passage of a dilution gas entering the chamber in response to the suction.

主权项

1. A device comprising:
an analysis block defining a first portion of a chamber; a dilution block defining a second portion of the chamber; a first orifice at the first portion for withdrawing gas from the chamber in response to a suction applied at the first orifice; a second orifice at the second portion to modify passage of a sample gas entering the chamber in response to the suction; and a third orifice at the second portion to modify passage of a dilution gas entering the chamber in response to the suction, a partial pressure of the sample gas within the chamber and a partial pressure of the dilution gas within the chamber maintained based only on a respective restriction provided by the second orifice and the third orifice.