A case study of Performance Analysis of Gas Turbine Power Plant in Pacific Energy Company Limited, Olorunsogo Papalanto, Nigeria

Abstract

Abstract . There is need to improve on the thermal power plants that is gaining momentum within the electricity generation industry to support hydro power plant. The failure of hydropower plant meeting up energy generation in Nigeria is becoming major task. This paper present issues of efficiency to boost availability of gas turbine power plant in Pacific Energy Company Limited, Olorunsogo Papalanto, Nigeria. The paper carried out thermal efficiency of two turbines of out eight turbines with 42 MW each at power rating of 0.8. The thermal efficiency of the power plant and network output and effect of ambient temperature were determined. The parameters such as ambient temperature, T1 (oC), ambient pressure, P1 (bar), compressor pressure, P2 (bar) and compressor discharge temperature, T2 (oC) and turbine exit temperature, T4 (oC) for a period of a year 2020 per hour and average of data were used in the analysis. Thermal efficiencies of turbines (𝜂) include at ambient temperature of 33 oC, (𝜂) for turbine 1 was 7.4% and turbine 2 as 9.3%. The thermal efficiency was high in rainy season due to low ambient temperature. Gas turbine power plant 1 has 45.3 kJ/kg-hour of network output and turbine 2 has network output of 59.7 kJ/kg-hour. In conclusion, thermal efficiency increases with increase network output and decrease with ambient temperature of gas turbine.