Proceedings of the KSME Conference (대한기계학회:학술대회논문집)

The Korean Society of Mechanical Engineers (대한기계학회)
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The Characteristics of Convective Heat Transfer in Non Boiling Vertical Downard Flow

비비등 수직 하향 유동의 대류 열전달 특성

  • 이동상 (명지대학교 대학원 기계공학과) ;
  • 김재근 (신성대학 기계.자동차 계열) ;
  • 양희준 (충청대학 기계설계과) ;
  • 오율권 (조선대학교 정밀기계공학과) ;
  • 차경옥 (명지대학교 기계공학과)
  • Published : 2000.11.02
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Abstract

This experimental study was conducted to figure out the characteristics of convective heat transfer in non boiling vertical downward flow with polymer additives. This experiment was studied in 26mm diameter, 800mm heating length and $1{\times}10^5W/m^2$ heat flux. The polymer concentration ranged from 0PPM to 500PPM with corresponding from Reynolds number $3.3{\times}10^4$ to $6.8{\times}10^4$ in non boiling vertical downward flow. Experimental results show that the characteristics of convective heat transfer was a strong function of polymer concentration and it has decreased with increasing the polymer concentration in non boiling vertical downward flow.

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