吉林大学学报(工学版) ›› 2014, Vol. 44 ›› Issue (5): 1360-1365.doi: 10.7964/jdxbgxb201405022

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Design and optimization of double chamber model of gas turbine transition piece

LIU Guang-jie1,2,XU Tao1,LI Jun-lou1,YU Zheng-lei3,XIU Hang1,CHENG Fei1   

  1. 1.College of Mechanical Science & Engineering, Jilin University, Changchun 130022, China;
    2.College of Computer Science and Technology, Changchun Normal University, Changchun 130032, China;
    3.College of Biological and Agricultural Engineering, Jilin University,Changchun 130022,China
  • Received:2013-07-06 Online:2014-09-01 Published:2014-09-01

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Abstract: The structure and performance of the transition piece of gas combustor were taken as the research objects, and a simplified double chamber model was designed with the distribution of holes in three rows. The response surface model was established by adopting Orthogonal Design of Experiment (ODOE) and approximate modeling method. The flow field and temperature field were solved using this response surface model. The polynomial regression equations were built about the weighted average temperature and the minimum pressure on the inner-wall of the double chamber model regarding the impinging hole angle and the injection orientation. The optimum impinging hole angle and the injection orientation were found using the interior point method to solve the response surface model. The simulation results show that the cooling efficiency the optimum design proposal was 7.53% higher than that of the initial design proposal. The simulation results and the comparative analysis may provide valuable reference for the impinging hole angle design in double chamber model.

Key words: fluid mechanics, gas turbine, strueture of combustion chamber, impinging hole's angle, injection orientation

CLC Number: 

  • O302
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