• 검색어에 아래의 연산자를 사용하시면 더 정확한 검색결과를 얻을 수 있습니다.
  • 검색연산자
검색연산자 기능 검색시 예
() 우선순위가 가장 높은 연산자 예1) (나노 (기계 | machine))
공백 두 개의 검색어(식)을 모두 포함하고 있는 문서 검색 예1) (나노 기계)
예2) 나노 장영실
| 두 개의 검색어(식) 중 하나 이상 포함하고 있는 문서 검색 예1) (줄기세포 | 면역)
예2) 줄기세포 | 장영실
! NOT 이후에 있는 검색어가 포함된 문서는 제외 예1) (황금 !백금)
예2) !image
* 검색어의 *란에 0개 이상의 임의의 문자가 포함된 문서 검색 예) semi*
"" 따옴표 내의 구문과 완전히 일치하는 문서만 검색 예) "Transform and Quantization"
쳇봇 이모티콘
ScienceON 챗봇입니다.
궁금한 것은 저에게 물어봐주세요.

논문 상세정보


Film boiling heat transfer coefficients for a downward-facing hemispherical surface are measured from the quenching tests in DELTA (Downward-boiling Experimental Loop for Transient Analysis). Two test sections are made of copper to maintain Bi below 0.1. The outer diameters of the hemispheres are 120 mm and 294 mm, respectively. The thickness of both the test sections is 30 mm. The effect of diameter on film boiling heat transfer is quantified utilizing results obtained from the two test sections. The measured heat transfer coefficients for the test section with diameter 120 mm lie within the bounding values from the laminar film boiling analysis, while those for diameter 294 mm are found to be greater than the numerical results on account of the Helmholtz instability. There is little difference observed between the film boiling heat transfer coefficients measured from the two test sections. In addition, the higher thermal conductivity of copper results in the higher minimum heat flux in the tests. For the test section of diameter 120 mm, the Leidenfrost point is lower than that for the test section of diameter 294 mm. Destabilization of film boiling propagates radially inward for the 294 mm test section versus radially outward for the 120 mm Test Section.

참고문헌 (19)

  1. L. A. Bromely, 'Heat Transfer in Stable Film Boiling,' Chemical Engineering Progress, 46, 221, (1950) 
  2. J. C. Koh, 'Analysis of Film Boiling on Vertical Surfaces,' Journal of Heat Transfer, 84, 103, (1962) 
  3. E. M. Sparrow, R. D. Cess, 'The Effect of Subcooled Liquid on Laminar Film Boiling,' Journal of Heat Transfer, 84, 103, (1962) 
  4. K.Nishikawa,T.Ito,'Two-Phase Boundary Layer of Free Convection Film Boiling,' International Journal of Heat and MassTransfer,19,1173 (1966) 
  5. T. H. Frederking, J. A. Clark, 'Natural Convection Film Boiling on a Sphere,' Advanced Cryogenic Engineering, 8, 501,(1963) 
  6. A. Sakurai, M. Shiatsu, K. Hata, 'A General Correlation for Pool Film Boiling Heat Transfer from a Horizontal Cylinder to Subcooled Liquid: Part 1- A Theoretical Pool Film Boiling Heat Transfer Model Including Radiation Contribution and Its Analytical Solution,' Journal of Heat Transfer, 112,430, (1990) 
  7. S. K. Tou, C. P. Tso, 'Improvement on the Modeling of Film Boiling on Spheres,' International Communication of Heat and Mass Transfer, 24, 6, 879, (1997) 
  8. T. D. Bui, V. K. Dhir, 'Film Boiling Heat Transfer on Vertical Plates and Spheres,' Journal of Heat Transfer, 107,764, (1985) 
  9. V. K. Dhir, G. P. Purohit, 'Subcooled Film Boiling Heat Transfer from Spheres,' Nuclear Engineering and Design, 47, 49, (1978) 
  10. N. I. Kolev, 'Film Boiling on Vertical Plates and Spheres,' Experimental Thermal and Fluid Science, 18, 97, (1998) 
  11. J. H. Kim, 'Film Boiling Stability and Heat Transfer on Spheres,' Ph. D. Thesis, University of Manchester, England, (1994) 
  12. F. P. Incropera, D. P. Dewitt, Introduction to Heat Transfer, $3^{rd}$ ed., Ch. 5, John Wiley and Sons, Inc., New York, NY, USA, (1996) 
  13. W. Peyayopanakul, J. W. Westwater, 'Evaluation of the Unsteady-state Quenching Method for Determining Boiling Curves,' International Journal of Heat and Mass Transfer, 21, 1437, (1978) 
  14. V. K. Dhir, 'Boiling Heat Transfer,' Annual Review of Fluid Mechanics, 30, 365, (1998) 
  15. J. W. Westwater, J. J. Hwalek, M. E. Irving, 'Suggested Standard Boiling Curves by Quenching,' Ind. Eng. Chem. Fundam., 25, 685, (1986) 
  16. Y. Y. Hsu, J. W. Westwater, 'Approximate Theory for Film Boiling on Vertical Surfaces,' Chem. Engr. Prog. Symp. Ser., 56, 30, 15, (1960) 
  17. M. S. El-Genk, A. G. Glebov, 'Film Boiling from a Downward-Facing Curved Surface in Saturated and Subcooled Water,' International Journal of Heat and Mass Transfer, 39, 2, 275, (1995) 
  18. M. S. EI-Genk, S. Gao, 'Experiments on Pool Boiling of Water from Downward-Facing Hemisphere,' Nuclear Technology, 125, 52, (1999) 
  19. F. B. Cheung, K. H. Haddad, Y. C. Liu, 'Critical Heat Flux Phenomenon on a Downward Facing Curved Surface,' NUREG/CR-6507 PSU/ME-7321, (1997) 

이 논문을 인용한 문헌 (1)

  1. 2009. "" Nuclear engineering and technology : an international journal of the Korean Nuclear Society, 41(7): 945~952 


원문 PDF 다운로드

  • ScienceON :

원문 URL 링크

원문 PDF 파일 및 링크정보가 존재하지 않을 경우 KISTI DDS 시스템에서 제공하는 원문복사서비스를 사용할 수 있습니다. (원문복사서비스 안내 바로 가기)

상세조회 0건 원문조회 0건

DOI 인용 스타일