Power generation gas turbine and combined India power generation system

摘要

It is an object of the present invention to use the optimum material for the disk blade and nozzle from the first stage to the last stage which is particularly important as the gas turbine for the turbine nozzle entrance temperature of 1200 to 1650.degree. C. and to perform the optimum cooling by these It is to provide a gas turbine and a combined India power generation system of thermal efficiency. The present invention is characterized in that a turbine nozzle, a nozzle and a disk are cooled to a turbine nozzle inlet combustion gas temperature of 1200 to 1650 degrees Celsius, and the blade and nozzle are made of single crystal or columnar Ni base alloy and a martensitic steel It is a combined India power generation system consisting of a combination of a high temperature and low pressure integrated steam turbine with a rate gas turbine and a steam inlet temperature of 530 u2103 or more.