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. 08, 2010
Filed:
May. 07, 2008
Antonio Asti, Padua, IT;
Mariateresa Paci, Florence, IT;
Michele D'ercole, Florence, IT;
Massimo Betti, Empoli, IT;
Simone Bei, Prato, IT;
Giovanni Tonno, Florence, IT;
Jesse Stewart, Taylors, SC (US);
Francesco Maria Orgero, Florence, IT;
Antonio Asti, Padua, IT;
Mariateresa Paci, Florence, IT;
Michele D'Ercole, Florence, IT;
Massimo Betti, Empoli, IT;
Simone Bei, Prato, IT;
Giovanni Tonno, Florence, IT;
Jesse Stewart, Taylors, SC (US);
Francesco Maria Orgero, Florence, IT;
Nuovo Pignone S.p.A., Florence, IT;
Abstract
A method and apparatus are described for controlling the combustion in a gas turbine. The method includes measuring, with one or two calorimeters, the temperature, calorific value and relative density of a gaseous fuel in order to determine the Wobbe index, comparing the Wobbe index value measured with a predefined Wobbe index value for the gaseous fuel and regulating the temperature of the gaseous fuel with at least one heat exchanger in order to reach the predefined Wobbe index value. The method may also include using a second gaseous fuel, having a different Wobbe index from the gaseous fuel, or a fuel obtained by mixing the gaseous fuel and the second gaseous fuel, according to arbitrary proportions and variable with time.