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Article

A Proper Shape of the Trailing Edge Modification to Solve a Housing Damage Problem in a Gas Turbine Power Plant

1
Computer Simulation in Engineering Research Group, King Mongkut’s Institute of Technology Ladkrabang, College of Advanced Manufacturing Innovation, Bangkok 10520, Thailand
2
Department of Mechanical Engineering, Faculty of Engineering and Architecture, Rajamangala University of Technology Suvarnabhumi, Phranakhon Si Ayutthaya 13000, Thailand
3
Synchrotron Light Research Institute (Public Organization), Nakhon Ratchasima 30000, Thailand
*
Author to whom correspondence should be addressed.
Academic Editor: Alfredo Iranzo
Processes 2021, 9(4), 705; https://doi.org/10.3390/pr9040705
Received: 23 March 2021 / Revised: 8 April 2021 / Accepted: 12 April 2021 / Published: 16 April 2021
(This article belongs to the Special Issue CFD Applications in Energy Engineering Research and Simulation)
To solve the housing damage problem of a fractured compressor blade (CB) caused by an impact on the inner casing of a gas turbine in the seventh stage (from 15 stages), modifications of the trailing edge (TE) of the CB have been proposed, namely 6.5 mm curved cutting and a combination of 4 mm straight cutting with 6.5 mm curved cutting. The simulation results of the modifications in both aerodynamics variables Cl and Cd and the pressure ratio, including structural dynamics such as a normalized power spectrum, frequency, total deformation, equivalent stress, and the safety factor, found that 6.5 mm curved cutting could deliver the aerodynamics and structural dynamics similar to the original CB. This result also overcomes the previous work that proposed 5.0 mm straight cutting. This work also indicates that the operation of a CB gives uneven pressure and temperature, which get higher in the TE area. The slightly modified CB can present the difference in the properties of both the aerodynamics and the structural dynamics. Therefore, any modifications of the TE should be investigated for both properties simultaneously. Finally, the results from this work can be very useful information for the modification of the CB in the housing damage problem of the other rotating types of machinery in a gas turbine power plant. View Full-Text
Keywords: aerodynamics; compressor blade; computational fluid dynamics; computer simulation; finite element analysis; gas turbine; housing damage; power plant; structural dynamics; trailing edge aerodynamics; compressor blade; computational fluid dynamics; computer simulation; finite element analysis; gas turbine; housing damage; power plant; structural dynamics; trailing edge
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MDPI and ACS Style

Jansaengsuk, T.; Kaewbumrung, M.; Busayaporn, W.; Thongsri, J. A Proper Shape of the Trailing Edge Modification to Solve a Housing Damage Problem in a Gas Turbine Power Plant. Processes 2021, 9, 705. https://doi.org/10.3390/pr9040705

AMA Style

Jansaengsuk T, Kaewbumrung M, Busayaporn W, Thongsri J. A Proper Shape of the Trailing Edge Modification to Solve a Housing Damage Problem in a Gas Turbine Power Plant. Processes. 2021; 9(4):705. https://doi.org/10.3390/pr9040705

Chicago/Turabian Style

Jansaengsuk, Thodsaphon, Mongkol Kaewbumrung, Wutthikrai Busayaporn, and Jatuporn Thongsri. 2021. "A Proper Shape of the Trailing Edge Modification to Solve a Housing Damage Problem in a Gas Turbine Power Plant" Processes 9, no. 4: 705. https://doi.org/10.3390/pr9040705

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