Patent ID: 6814568
Filing Date: 2004-11-09
Classification: F23D,F23G,F23L,Y02E

Abstract:
A method of operating a superatmospheric combustion device, the method comprising:providing a superatmospheric combustion device, which includes a lean gas chamber, a combustor, a heat recovery section, and an exhaust; feeding lean gas to the lean gas chamber; providing a heat sink/pressure equalization chamber and a preheated air chamber within the combustion device; feeding pressurized ambient air to the heat sink/pressure equalization chamber; feeding preheated air, which is higher in temperature than the ambient air, to the preheated air chamber; exchanging heat from the lean gas chamber, the preheated air chamber, and the combustor to the pressurized ambient air in the heat sink/pressure equalization chamber; feeding the lean gas from the lean gas chamber to the combustor; feeding the preheated air from the preheated air chamber to the combustor; and combusting the lean gas and the preheated air in the combustor at superatmospheric pressure.