(19)
(11) EP 2 527 737 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
29.05.2013 Bulletin 2013/22

(43) Date of publication A2:
28.11.2012 Bulletin 2012/48

(21) Application number: 12169656.1

(22) Date of filing: 25.05.2012
(51) International Patent Classification (IPC): 
F23N 1/00(2006.01)
 F23N 5/00(2006.01)
(84) Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated Extension States:
BA ME

(30) Priority: 25.05.2011 IT MI20110945

(71) Applicant: Ansaldo Energia S.p.A.
Genova (IT)

(72) Inventors:
  • Chiapparoli, Daniele
    16127 Genova (IT)
  • Piccardo, Fabio
    16149 Genova (IT)
  • Rovere, Nicola
    16137 Genova (IT)

(74) Representative: Jorio, Paolo et al
Studio Torta S.p.A. Via Viotti, 9
10121 Torino
10121 Torino (IT)

   


(54) Control method for controlling the supply of fuel to a gas turbine plant and gas turbine plant


(57) A control method for controlling the supply of fuel to a gas turbine plant (1) provided with a gas turbine (6) and a combustion chamber (4) supplied with a fuel/oxidizer mixture, includes the steps of:
- at the exhaust (12) of the gas turbine (6), detecting at least a first parameter related to the unburned fuel concentration (UHC);
- at the exhaust (12) of the gas turbine (6,) detecting at least a second parameter related to the specific energy produced by the combustion (CO);
- calculating a fuel flow rate (QTOT) to be supplied to the combustion chamber (4) on the basis of the first parameter (UHC) and of the second parameter (CO).







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Search report