The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 13, 2006
Filed:
Apr. 08, 2003
Frank F. Mittricker, Jamul, CA (US);
Frank F. Mittricker, Jamul, CA (US);
ExxonMobil Upstream Research Company, Houston, TX (US);
Abstract
A cogeneration system having a gas turbine generator () that provides combustion air via an exhaust to a heat recovery steam generator () has a gas-seal stack () coupled there between. The gas-seal stack () prevents substantial portions of the exhaust gas from exiting there through due to formation of a column of higher density ambient air. This blockage is achieved without resort to mechanical. pneumatic pathway control devices. Conversely, if and when the gas turbine generator () shuts down, ambient air is drawn through the gas-seal stack () and serves to support continued combustion in the heat recovery steam generator (). In one embodiment, an induction fan (or fans) () is located at the exhaust of the heat recovery steam generator () such that combustion air is pulled through the heat recovery steam generator () rather than pushed there through. This aids in minimizing backpressure at the exhaust of the gas turbine generator ().