Paper Title:
Optimization of the Cooling Process of a Heavy Hydraulic Turbine Runner Band Casting in Heat Treatment
  Abstract

Hydraulic turbine band castings are susceptible to deformation in heat treatment process if their cooling is not well controlled. The coupled analysis of forced air flow and heat transfer in normalizing process of a heavy turbine band runner casting with outer diameter of 8000 mm was carried out by using ANSYS software. The band undergoes significant deformation because of uneven cooling resulted by uneven air flow around it during normalizing. The forced air flow pattern is a key factor which influences the cooling uniformity and efficiency. It is optimized by adjusting the cooling fans’ orientation relative to the casting to form cyclone around it. Consequently, cooling uniformity is improved to avoid deformation.

  Info
Periodical
Materials Science Forum (Volumes 654-656)
Main Theme
Edited by
Jian-Feng Nie and Allan Morton
Pages
1335-1338
DOI
10.4028/www.scientific.net/MSF.654-656.1335
Citation
J. W. Kang, T. J. Wang, H. L. Yu, T. Y. Huang, B. C. Liu, "Optimization of the Cooling Process of a Heavy Hydraulic Turbine Runner Band Casting in Heat Treatment", Materials Science Forum, Vols. 654-656, pp. 1335-1338, 2010
Online since
June 2010
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Price
$32.00
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