International Journal of Applied Science and Technology

ISSN 2221-0997 (Print), 2221-1004 (Online) 10.30845/ijast

OPTIMIZATION OF THE SYSTEM PERFORMANCE OF A GAS-TURBINE PLANT
B.T Lebele-Alawa, J.M.Asuo

Abstract
This paper presents exergy based analysis and power turbine inlet temperature drop techniques for the optimization of the plant exergetic efficiency. Actual field investigation of the individual component performance was achieved using data from plant operational log sheets. Pertinent parameters which could not be measured directly were obtained using appropriate existing equations. The parameters investigated were the thermal efficiency, work ratio, thermal discharge index, net plant heat rate, and the exergetic efficiency. The exergetic efficiency and exergy destruction in the plant were largely affected by variation in the power turbine inlet temperature. For a 15percent reduction in power turbine inlet temperature an increase of 83.71percent in exergetic efficiency was obtained.

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