F - Mech Eng,Light,Heat,Weapons – 01 – K
Patent
F - Mech Eng,Light,Heat,Weapons
01
K
F01K 21/04 (2006.01)
Patent
CA 2198224
A method of operating a gas turbine in which variations in power requirements are accomplished by varying the rate of steam injection into the combustor while maintaining the temperature of the fluid flowing to the turbine at a constant value. The steam injection flow rate is varied by varying the pressure in the evaporator of an HRSG that receives exhaust gas from the turbine. Preferably, the flow area of the turbine is increased so as to allow the use of especially high rates of steam injection.
Procédé d'exploitation d'une turbine à gaz dans laquelle les variations de puissance nécessaires s'obtiennent en faisant varier le débit de vapeur injectée dans la chambre de combustion, tout en maintenant constante la température du fluide alimentant la turbine. Le débit de vapeur injectée se règle en faisant varier la pression de l'évaporateur d'un générateur de vapeur à récupération de chaleur qui reçoit les gaz d'échappement de la turbine. La section de passage de la turbine est de préférence agrandie pour permettre des débits d'injection de vapeur particulièrement élevés.
Chen Allen G.
Southall Leslie R.
Bereskin & Parr
Westinghouse Electric Corporation
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