Journal of the Korean Society of Visualization (한국가시화정보학회지)

The Korean Society of Visualization (한국가시화정보학회)
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Hydrodynamic effects of heater lengths on pool boiling critical heat flux

히터 길이가 수조비등 임계열유속에 미치는 수력학적 영향

  • Su Cheong Park (School of Mechanical Engineering, Pukyong National University) ;
  • Do Yeon Kim (School of Mechanical Engineering, Pukyong National University) ;
  • Seon Ho Choi (School of Mechanical Engineering, Pukyong National University) ;
  • Chang Hoon Lee (School of Mechanical Engineering, Pukyong National University) ;
  • Younghun Lim (Future Automobiles Department, Korea Polytechnics University (Busan campus)) ;
  • Chi Young Lee (Department of Fire Protection Engineering, Pukyong National University) ;
  • Yeon Won Lee (School of Mechanical Engineering, Pukyong National University) ;
  • Dong In Yu (School of Mechanical Engineering, Pukyong National University)
  • Received : 2023.02.27
  • Accepted : 2023.03.14
  • Published : 2023.03.31
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Abstract

In the study, pool boing critical heat flux (CHF) was experimentally investigated depending on the length of heaters. A smooth silicon oxide surfaces are used as the boiling surfaces. As the results of pool boiling experiments based on distilled water in ambient pressure condition, the CHF decreased as the length of the heater increased. By the high speed imaging, it was shown that the number of vapor columns increased as the length of the heater increased. Comparing the number of vapor columns and the CHF according to the heater length, the change in the CHF according to the heater length was analyzed based on the hydrodynamic instability.

Keywords

Acknowledgement

이 논문은 2022년 부경대학교 국립대학육성사업 지원비에 의하여 연구되었음. 이 논문은 정부(과학기술정보통신부)의 재원으로 한국연구재단의 지원을 받아 수행된 연구임 (NRF-2021M2D2A1A01048627).

References

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