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Hydrodynamic and thermal characteristics study of cooling structure (IIC) for eco-gas turbine engine blade

Salleh, Hamidon and R. Ragavan, Vijay and Kenichi, Funazaki and Alimin, Ahmad Jais and Md Seri, Suzairin and Mohideen Batcha, Mohd Faizal and Atan, Siti Rohila (2013) Hydrodynamic and thermal characteristics study of cooling structure (IIC) for eco-gas turbine engine blade. Other thesis, Universiti Tun Hussein Onn Malaysia.

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Abstract

Higher inlet temperature of gas turbine increases the thermal performance, requiring the operating temperature to be higher that the allowable blade material temperature. Study on advance cooling technique is required to fulfil the increasing demand on lugher performance turbine system. The present study deals with numerical simulation on an advanced Integrated Impingement Cooling (IIC) system. The IIC integrates the conventional film cooling (external cooling) with internal cooling, which comprises of cool jet impingement on inner blade wall (the target plate) and structural pins that act as fins. Overall cooling performance of four (4) newly proposed IIC configurations including two (2) configurations by Funazaki and Hamidon (2008) have been investigated through unsteady three-dimensional numerical simulation of RANS with k-E turbulence model via commercial CFD package, FLUENT. The numerical results show good agreement with experimental data of Funazaki and Harnidon (2008). It is concluded that the inner pin configuration does not affect the adiabatic cooling performance at the outer wall. However the pin configuration does affect the internal cooling performance, consequently the overall cooling performance. It is observed that STAGS offers the best overall performance of the six configurations studied.

Item Type: Thesis (Other)
Subjects: T Technology > TJ Mechanical engineering and machinery > TJ751-805 Miscellaneous motors and engines
Depositing User: Normajihan Abd. Rahman
Date Deposited: 10 May 2015 08:49
Last Modified: 10 May 2015 08:49
URI: http://eprints.uthm.edu.my/id/eprint/6895
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