Method for measuring the flow rate of a species contained in an exhaust gas stream of a combustion process

摘要

Provided is a method for determining gas flow rates in an exhaust gas stream from a combustion process by measuring the amounts of a tracer gas inherently present in a gas used in the combustion process at a point upstream from the exhaust gas and at a point in the exhaust gas stream itself. The flow rate is determined by comparing the concentration of the tracer gas at the two points using a mass balance. Flow/emission of a Particular species in the exhaust gas is determined by using the present method upon measuring the concentration of the species in the exhaust gas. The most preferred tracer gases include helium and argon.