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. 17, 2014
Filed:
Dec. 27, 2012
Hitachi, Ltd., Tokyo, JP;
Kazuki Abe, Tokai, JP;
Tomomi Koganezawa, Tokai, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
Provided is a fuel flow control method of a gas turbine combustor provided in a humid air gas turbine, by which method NOx generation in the gas turbine combustor is restricted before and after the starting of humidification and combustion stability is made excellent. The fuel flow control method of a gas turbine combustor provided with a plurality of combustion sections, to which a fuel is individually supplied, a part of the gas turbine combustor including a combustion section or sections, which are more excellent in flame holding performance than the remaining part, the method evaluating a moisture content of a combustion air at the startup of humidification on the basis of a humidification water quantity and an air temperature after humidification and controlling a fuel ratio supplied to the combustion section or sections of excellent flame holding performance when fuel ratios of fuels supplied to the respective combustion sections are controlled in accordance with a humidified state of a compressed air brought about by a humidifier provided in the humid air gas turbine.