Characteristics Study of Gas Turbine Performance with using surface geothermal energy: Case Study of Iraq

Abstract

Abstract The study aims tray to improve the performance of the Al-Mansourieh gas power plant located in Iraq with a production (4 ×732 MW). By proposing a new (cooling/heating) system for air that entering the compressor by using groundwater (well water) as a renewable energy. FCU-Unit system operates according to the annual season. The calculations for the study was carried out in two stages, the first one included the thermodynamic analysis of the proposed system and finding the optimal design of space for heat exchanger. By another calculation, the amount of cooling water it was between (14.5 - 87) kg / s and the rate of airflow that reached (1.87m3/h). While the second part of this study included calculating the ideal and actual efficiency through the introduction of the actual conditions for the work of the turbine which took into account the pressure losses in the turbine inlet, exhaust pressure losses, combustion chamber pressure losses, combustion efficiency, and compressor and turbine efficiencies. Analytical results showed that heat efficiency and net capacity decrease in proportional to increasing air temperature. While the quantity of specific fuel consumed and the average heat increasing too with increasing air temperature. There for this study encouraging strongly that considering the air cooling before entering the combustion to improve the efficiency.