Method of operating a heat recovery boiler

摘要

The method of operating a burner heater (1) uses an inlet air feed consisting of a mixture of hot gas and-or air in which the intake air has between fifty and sixty five percent of fumes produced by the burner. The recycled fumes (15) can be compressed prior to feed to the intake. The hot gas can be the exhaust from an internal combustion engine (8) driving a turbine.