수평급수배관 내에서의 비정상 열성층유동 및 열전달

DOI QR코드

DOI QR Code

염학기;박만흥
Yeom, Hak-Gi;Park, Man-Heung

  • 발행 : 1996.02.01

초록

In this paper, the unsteady state calculational model is proposed for the thermal stratification analysis in the feedwater line of the PWR plant. By defining dimensionless parameters in the two-dimensional polar coordinate system and applying SIMPLE algorithm, the temperature and flow profiles due to the thermal stratification are obtained. Base on the fact that the most significant condition occurs when the fluid temperature difference between the piping ends reaches as high as 166.deg. C, the present result shows that max. Dimensionless temperature difference of 0.6 (about l00.deg. C) obtained between hot and cold sections of pipe wall at dimensionless time 47.0.

키워드

열성층;수평배관;급수배관;급수계통