Patent ID: 7293415
Filing Date: 2007-11-13
Classification: F02C,F05D

Abstract:
1. A method of operating a gas turbine group comprising: compressing a working fluid in at least one compressor; heating the compressed working fluid to a turbine inlet temperature in at least one component for the supply of heat by supplying a quantity of heat; expanding the working fluid in at least one turbine; generating a shaft power during expansion of the working fluid; using at least a first part of the shaft power for driving the compressor; and using a second part of the shaft power as useful power for driving a power consumption unit; wherein full-load power of the gas turbine group is adjustable, with a cooling effect, by at least one selected from the group consisting of cooling the working fluid before compression, cooling the working fluid during compression, and cooling the working fluid between two compression steps; wherein actual useful power of the gas turbine group is controlled to a required useful power; and wherein the cooling effect is set such that current full-load power is larger than the actual useful power, and the gas turbine group is operated with an actual relative power of less than 100% relative to the current full-load power.