Transactions of the Korean Society of Mechanical Engineers B (대한기계학회논문집B)

The Korean Society of Mechanical Engineers (대한기계학회)
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Thermal stratification in a horizontal pipe of pressurizer surge line

가압기밀림관의 수평배관내 열성층유동

  • 정일석 (충남대학교 대학원 기계공학과) ;
  • 김유 (충남대학교 기계공학과) ;
  • 염학기 (한국전력기술(주) 전력기술개발연구소) ;
  • 박만흥 (한국전력기술(주) 전력기술개발연구소)
  • Published : 1996.04.01
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Abstract

In this paper, the unsteady two dimensional model for the thermal stratification in the pressurizer surge line of PWR plant has been proposed to numerically investigate the heat transfer and flow characteristics. The dimensionless governing equations are solved by using the Control Volume Formulation and SIMPLE (Semi-Implicit Method for Pressure Linked Equations) algorithm. The temperature profile of fluids and pipe wall with time are shown when the thermal stratification occurs in the horizontal pipe. The numerical result shows that the maximum dimensionless temperature difference is about O.514 between hot and cold section of pipe wall at dimensionless time 1,632.

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