INTERSTAGE INJECTION into AXIAL COMPRESSOR, GAS TURBINE MODEL 7EA, PART 2

摘要

This paper describes the efforts of upgrading the original Interstage Injection System (IIS) that was installed in Gas Turbine Unit (GTU) No2, Summer 2000. Paper presented by Ingistov, No 2001-GT- 407 at IGTI Conference in New Orleans, June 2001 describes the original IIS design and its operational results. As presented in New Orleans IGTI Conference the main purpose of Interstage Injection (Ⅱ) is to preserve the Gas Turbine Unit (GTU) power output rather than augment the power output. Some power augmentation however takes place, and with gradual increase of the injected water flow the power gain will have to be quantified. This paper incorporates design changes of the water injection nozzles and the field results on GTU No1 compiled during Summer and Fall of 2001 in Watson Cogeneration Company (WCC) Plant in Carson California.