The following information was submitted:
Transactions: WSEAS TRANSACTIONS ON FLUID MECHANICS
Transactions ID Number: 53-194
Full Name: B Deepanraj
Position: Student
Age: ON
Sex: Male
Address: 73 Marapattu Village Girisamudiram Post Vaniyambadi, Vellore Dist, Tamilnadu
Country: INDIA
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E-mail address: babudeepan@gmail.com
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Title of the Paper: Theoretical Analysis of Gas Turbine Blades by Finite Element Method
Authors as they appear in the Paper: B. Deepanraj, G. Sankaranarayanan and P. Lawrence
Email addresses of all the authors: babudeepan@gmail.com, lawphd2008@gmail.com
Number of paper pages: 10
Abstract: Gas turbine is an important functional part of many applications. Cooling of blades has been a major concern since they are in a high temperature environment. Various techniques have been proposed for the cooling of blades and one such technique is to have axial holes along the blade span. Finite element analysis is used to analyze thermal and structural performance due to the loading condition, with material properties of Titanium- Aluminum Alloy. Six different models with different number of holes (7, 8, 9, 10, 11, 12) where analyzed in this paper to find out the optimum number of holes for good performance. In Finite element analysis, first thermal analysis followed by structural analysis is carried out. Graphs plotted for temperature distribution for existing design (12 holes) and for 8 holes against time. 2D and 3D model of the blade with cooling passages are shown. Using ANSYS, bending stress, deflection, temperature distribution for number of holes are anal!
yzed. Results have been discussed and we found that when the numbers of holes are increased in the blade, the temperature distribution falls down. For the blade configuration with 8 holes, the temperature near to the required value i.e., 800oC is obtained. Thus a turbine blade with 8 holes configuration is found to be the optimum solution.
Keywords: Gas turbine blade, stress, deflection, temperature distribution.
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