Abstract: A method of operating a gas turbine, wherein a compressor for the gas turbine has adjustable guide vanes at the inlet of the compressor, wherein the compressed air by the compressor is mixed with fuel in order to burn the mixture inside a combustor, wherein the addition of fuel has a given fuel rate, wherein the gas tur is controlled from a high load to a given house load. At a first step the adjustable guide vanes are continuously closing and the fuel rate is also accordingly reduced and then in a second and final step starting at a turning point the adjustable guide vanes are not further closed, but the fuel rate is further reduced until the given house load is reached, so that a given exhaust flow is maintained.

Abstract: A power plant with a water-steam-cycle includes a steam generator with a plurality of heating surfaces that carry a fluid and transfer heat to the fluid. The plurality of heating surfaces has an economizer for preheating the fluid and a fluidly connected evaporator for producing steam. A steam turbine receives the steam produced in the steam generator to generate power output. A condenser condenses steam from the steam turbine. The condenser has a hotwell as collection container for condensed steam or water. A polishing plant is arranged fluidly between the hotwell of the condenser and the economizer. A drain line interconnects an outlet of the economizer and the hotwell of the condenser. A fluid line interconnects the outlet of the economizer and the evaporator. The fluid line includes a syphon to hold back water in the economizer.

Abstract: A method for starting and stopping a gas turbine in a combined cycle power plant, wherein the gas turbine includes a compressor having adjustable guide vanes and the gas turbine power can also be controlled by opening the guide vanes. When the gas turbine is started, it is driven up to a base load or up to an emission-compliant load point, and the guide vanes are opened before the base load or the emission-compliant load point is reached.

Abstract: Provided is a method for starting and stopping a gas turbine in a combined cycle power plan, wherein the gas turbine includes a compressor having adjustable guide vanes and the gas turbine power can also be controlled by opening the guide vanes. When the gas turbine is started, it is driven up to a base load or up to an emission-compliant load point, and the guide vanes are opened before the base load or the emission-compliant load point is reached.