Recirculation Valve Valve that allows a metered amount of exhaust into the intake to reduce combustion temperature. Lowers nitrous oxide levels.
The burned and unburned gases that remain after combustion.
The gases emitting from an industrial process, generally a combustion process.
Exhaust gas is flue gas which occurs as a result of the combustion of fuels such as natural gas, gasoline/petrol, diesel, fuel oil or coal. It is discharged into the atmosphere through an exhaust pipe or flue gas stack.
