Abstract
In this study a thermal analysis and performance evaluation was carried out to investigate the benefit of using steam injection technique to Mullah Abdullah simple gas turbine generators (North of Iraq). Mullah Abdullah simple gas turbine generators was modeled and simulated to observe its performance including power output, thermal efficiency and specific fuel consumption. Thereafter, the simulation was carried out to investigate the performance of the suggested unit when a steam injection technique is used. The suggested method has been investigated and its results compared with a simple cycle results. The results indicates that the power out of the present Mullah Abdullah simple gas turbine can be held constant (37.5 MW) even the ambient temperature increase from 15 °C to 45 °C for the whole year by injecting a suitable quantity of steam, depending on ambient temperature, in its combustion chamber. The injected steam is generated by the heat recovery steam generator which extracts the thermal energy available in the exhaust gases. Keywords:- Gas turbine, steam injection, heat recovery steam generator
Highlights
The use of gas turbine generators for producing electricity has been increased in the last three decades and likely to continue to do so in the near future
The performance of gas turbine generators is highly dependent on ambient temperature which varies considerably throughout the year between the summer and the winter and even throughout the day and night, and this is the real case of Mullah Abdullah gas turbine generators
The exhaust gases of gas turbine generators leaving the turbine carrying a significant amount of thermal energy, is usually expelled to atmosphere without taking any further role in the power generation process, as the current case of Mullah Abdullah gas turbine generators
Summary
The use of gas turbine generators for producing electricity has been increased in the last three decades and likely to continue to do so in the near future. تحسين أداء وحدات ملا عبدالله الغازية باستخدام تقنية حقن البخار Steam injection ratio Specific heat (kJ/kg.K) Fuel-air ratio Specific enthalpy(kJ/kg) Lower calorific value (kJ/kg) Mass (kg) Pressure (bar)
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