Journal of computational fluids engineering (한국전산유체공학회지)

Korean Society of Computational Fluids Engineering (한국전산유체공학회)
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STUDY ON THE THERMAL-FLUID ANALYSIS OF CRYOGENIC CHAMBER FOR COLD CLIMATE TEST OF LARGE WIND TURBINE PARTS

대형 풍력발전기 부품의 극한 환경 시험을 위한 극저온 챔버의 열유동 해석에 대한 연구

  • Kim, M.K. (School of Mechanical Engineering, Pusan National Univ.) ;
  • Kang, Y.H. (School of Mechanical Engineering, Pusan National Univ.) ;
  • Park, W.G. (School of Mechanical Engineering, Pusan National Univ.)
  • Received : 2015.06.01
  • Accepted : 2015.09.29
  • Published : 2015.09.30
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Abstract

More and more, spaces are decreasing which satisfy multiple requirements for wind power plants. However, areas which have excellent wind resources and are free to civil complaints occupy a large space, although they are exposed to the cryogenic environment. This study conducted a thermal-fluid analysis of a cryogenic chamber for testing large wind turbine parts exposed to the cryogenic environment. The position of supply air is placed to the upper area to compare each cooling performance for each location of various outlets in mixing ventilated conditions. The study carried out CFD analysis for the chamber both with and without a test object. For the cases without the test object, the air temperature of the upper supply and down extract type chamber was cooled faster by 5-100% than the others. However, for the cases with the test object, the object temperature of upper supply and center extract on the opposite side type chamber was cooled faster by 33-132% than the others. The cooling performance by the air inside the chamber and the test object did not show the same pattern, which implicates the need to consider the cooling performance by not only the air but also the test object in the large cryogenic chamber design for testing large parts.

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References

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