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Jamel Orfi

Professor

Department of Mechanical Engineering, King Saud University, Riyadh

كلية الهندسة
Mechanical Eng. Department, (Office 2C 78),
المنشورات
مقال فى مجلة
2013

Impact of the use of a hybrid turbine inlet air cooling system in arid climates, H. A. Al-Ansary, J. A. Orfi, M. E. Ali,

Cooling the air entering the compressor section of a gas turbine is a proven method of increasing turbine power output, especially during peak summer demand, and it is increasingly being used in powerplants worldwide. Two turbine inlet air cooling (TIAC) systems are widely used: evaporative cooling and mechanical chilling. In this work, the prospects of using a hybrid turbine inlet air cooling (TIAC) system are investigated. The hybrid system consists of mechanical chilling followed by evaporative cooling. Such a system is capable of achieving a significant reduction in inlet air temperature that satisfies desired power output levels, while consuming less power than conventional mechanical chilling and less water than conventional evaporative cooling, thus combining the benefits of both approaches. Two hybrid system configurations are studied. In the first configuration, the first stage of the system uses water-cooled chillers that are coupled with dry coolers such that the condenser cooling water remains in a closed loop. In the second configuration, the first stage of the system uses water-cooled chillers but with conventional cooling towers. An assessment of the performance and economics of those two configurations is made by comparing them to conventional mechanical chilling and using realistic data. It was found that the TIAC systems are capable of boosting the power output of the gas turbine by 10% or more (of the power output of the ISO conditions). The cost operation analysis shows clearly the hybrid TIAC method with wet cooling has the advantage over the other methods and It would be profitable to install it in the new gas turbine power plants. The figure below shows a comparison of the water consumption for the three different cases

نوع عمل المنشور
Research work
رقم المجلد
75
مجلة/صحيفة
Energy Conversion and Management
الصفحات
214 to 223
مزيد من المنشورات
publications

The research addressed the economic evaluation of nuclear energy, coal, oil and natural gas in various cycle configurations with different distillation technologies. A comparison between fossil…

بواسطة Salah Ud-Din Khan and Jamel Orfi
2023
publications

This work theoretically studies the capability of using vortex tubes to provide the necessary heating and cooling energies required by a typical direct-contact membrane distillation (MD) process…

بواسطة Jamel Orfi and Emad Ali
2023
تم النشر فى:
MDPI
publications

Three different modifications of the reversal multi-stage flash (MSF) plant are proposed and compared.

بواسطة Emad Ali, Jamel Orfi, Hany AlAnsary, Saleh Baakeem, Ahmad S. Alsaadi, Noreddine Ghaffour
2023
تم النشر فى:
Elsevier