The Research on the Key Factor Affect the Precision in Stress Analysis for the Rotor of Steam Turbine

Abstract:

With the development of the power grid, the proportion of large capacity unit is increasing rapidly. It requires a more in-depth study on the reliability of the unit, especially for the unit adjusting the peak. This paper concerned on the research of the surface heat transfer coefficient, which is the key factor affect the precision in thermal stress analysis. The surface heat transfer coefficient is obtained via the numerical calculation for the steam’s flow state and the transient heat transfer between rotor. This paper mainly describes the steam’s flow state and the transient heat transfer with the steam seal, and the results show that the direct numerical calculation is resultful in this subject.

• Periodical: Applied Mechanics and Materials (Volumes 275-277)
• Pages: 83-86
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.275-277.83
• Online since: January 2013
• Authors: Chun Lin Zhang, Nian Su Hu, Wen Yang, Jian Mei Wang, Min Li, Cheng Ma
• Keywords: Finite Element Analysis (FEA), Flow State, Steam Turbine, Surface Heat Transfer Coefficient, Thermal Stress

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