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  3. 2511-2518
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Journal of Applied Sciences

Year: 2012 | Volume: 12 | Issue: 24 | Page No.: 2511-2518
DOI: 10.3923/jas.2012.2511.2518

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Authors


Hussain H. Al-Kayiem

Country: Malaysia

Tan Fok Hon

Country: Malaysia

Keywords


  • pressure recovery
  • Gas turbine
  • energy promoter
  • separation
  • aggressive diffuser
  • diffuser
Research Article

CFD Simulation of the Intermediate Passage of Gas Turbine with Energy Promoters

Hussain H. Al-Kayiem and Tan Fok Hon
The bulky size of gas turbine has always become a great factor and limit in designing oil and gas offshore platforms. This study presents simulations results on the effect of energy promoters in an aggressive intermediate gas turbine diffuser. A typical S-shaped diffuser is modeled and simulated to become in FLUENT 6.3.26 assuming 2-D and incompressible flow. The promoters were selected with triangular shape of 25° frontal edge. The effect of energy promoters was investigated with various configurations to obtain the best height and position. The simulation was carried out with five different heights of 0.5, 1.0, 1.5, 2.0 and 2.5 mm and five different promoter locations in the upstream part of the diffuser. The exit static pressure recovery, which ultimately affects the diffuser’s efficiency, was adopted as an indication for the diffuser performance. The simulation results show that the energy promoters works as intended but still far from reaching the benchmark efficiency of a normal/ideal diffuser. Among 5, 10, 15, 20 and 25° of location angles in the inlet bend, the 10° location was found to be the most effective location. The promoters with 2.0 mm height display the highest exit pressure recovery. Further simulation will be required in three dimensional, as well as experimental investigations to explore furthermore on the promoters contribution in enhancing the diffusers efficiency.
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How to cite this article

Hussain H. Al-Kayiem and Tan Fok Hon, 2012. CFD Simulation of the Intermediate Passage of Gas Turbine with Energy Promoters. Journal of Applied Sciences, 12: 2511-2518.

DOI: 10.3923/jas.2012.2511.2518

URL: https://scialert.net/abstract/?doi=jas.2012.2511.2518

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