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Method for operating a gas turbine

A technology of gas turbine and operation mode, which is applied in the direction of gas turbine device, fuel control of turbine/propulsion device, turbine/propulsion fuel delivery system, etc. It can solve the problem that parameters cannot be continuously expressed, and achieve the goal of reducing control cost and enhancing continuity Effect

Active Publication Date: 2013-07-10
ANSALDO ENERGIA IP UK LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] With this mechanism of operation according to the prior art, the disadvantage is that certain parameters are not continuously represented during the transition but are subject to certain interruptions

Method used

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  • Method for operating a gas turbine
  • Method for operating a gas turbine
  • Method for operating a gas turbine

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Experimental program
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Embodiment Construction

[0033] figure 1 A schematic diagram of a gas turbine 10 optionally operated with a gaseous fuel A consisting of a gas mass flow and / or an oil fuel B consisting of an oil mass flow is shown. The feed of gaseous fuel A and oil fuel B is schematically represented. During steady state operation, gas turbine 10 preferably operates on gaseous fuel A only or oil fuel B only.

[0034] The operating mode change can be made during turbine load operation without significantly changing the turbine output L of the gas turbine 10 . In this case, it is possible to switch from the operation of the gas turbine 10 with gaseous fuel A to the operation of the gas turbine 10 with oil fuel B, for example.

[0035] At least during the transition from fuel A to fuel B, but also in conjunction with steady state operation of the gas turbine 10 utilizing oil fuel B, a water additive 11 may be provided for operation of the gas turbine 10 such that, in addition to feeding oil fuel B In addition, a wat...

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Abstract

Method for operating a gas turbine (10), which is operated with a gaseous fuel (A) consisting of a gaseous mass flow ( m gas ) and / or with an oil fuel (B) consisting of an oil mass flow ( m oil ), wherein a change between an operating mode with gaseous fuel (A) and an operating mode with oil fuel (B) is undertaken during load operation of the gas turbine (10), wherein a water addition (11) of a water mass flow ( m H2O ) is provided at least in the operating mode with oil fuel (B), and wherein the ratio ( omega norm ) of the added water mass flow ( m H2O ) to the fuel mass flow during the change between operating modes is determined according to.

Description

technical field [0001] The present invention relates to a method of operating a gas turbine optionally operating on a gaseous fuel such as natural gas and / or a liquid fuel such as oil, wherein during gas turbine load operation between operation on the gaseous fuel and operation on the liquid fuel and wherein at least the operation with liquid fuel is performed with a water addition. Background technique [0002] Operating the combustor of a gas turbine with gaseous and / or liquid fuel is a measure well known in the technical field of modern gas turbines. [0003] Furthermore, it is known to add water to the fuel stream in order to reduce combustion instabilities and to reduce NOx emissions during operation of gas turbines with liquid fuels. Certain challenges arise when the operation under load is to transition from one fuel to another. An acceptable control of the mass flow of primary fuel, secondary fuel and water is a necessary prerequisite to maintain gas turbine operat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02C9/00F02C3/30
CPCF02C3/22F02C3/24F02C3/30F02C9/40F05D2270/082F05D2270/16
Inventor S·R·舍尔T·梅乌维森
Owner ANSALDO ENERGIA IP UK LTD