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. 09, 1998
Filed:
Mar. 10, 1997
Thomas E Dowdy, Orlando, FL (US);
Ronald L Bannister, Winter Springs, FL (US);
Westinghouse Electric Corporation, Pittsburgh, PA (US);
Abstract
Hydrogen is used as the fuel source in a gas turbine combined cycle power plant. The hydrogen may be combusted in either a mixture of compressed air and steam or a mixture of pure oxygen and steam. In either case, the work of compression associated with pressurizing the oxidant for the combustion process is considerably reduced since steam, rather than excess air, is used to moderate combustion temperature, as well as to cool the turbine components. The steam is produced by transferring heat from the turbine exhaust gas to feed water. Since no hydrocarbon fuel is used, fuel bound NOx is eliminated. Moreover, if pure oxygen is used, rather than air, for the combustion of the hydrogen, then the only emission from the power plant is water vapor, which may be condensed and returned to the cycle.