TWO YEARS OF OPERATIONAL EXPERIENCE WITH GAS TURBINE INLET FOGGING AT RELIANCE COGENERATION FACILITIES

摘要

The design, installation, commissioning, operation and maintenance experiences of a fogging system for 5 GE Frame 6B gas turbines in cogeneration service are described in this paper. The pilot project was initiated in October 2000 on one GT and based on the encouraging results, fogging based inlet air cooling has been incorporated on an additional 4 gas turbines. The paper provides a description of the cogeneration plant and the underlying need for inlet fogging. The paper also shows how the inlet fogging was instrumental in boosting power and improving heat rate for the cogeneration cycle. Modifications done in the control logic to operate the fogging based inlet-cooling system on part load operation of gas turbines are also provided.