Journal of Advanced Marine Engineering and Technology

The Korean Society of Marine Engineering (한국마린엔지니어링학회)
권호 표지

An Experimental Investigation on Condensation Heat Transfer Inside Vertical Tubes

수직관내 응축열전달에 관한 실험적 연구

  • Published : 1996.08.01
Download PDF
⟨ Previous Next ⟩

Abstract

냉동.공조 및 각종 화학공업에 널리 사용되는 열교환기인 응축기의 고성능화 및 합리적인 설계를 위해서는 냉매의 정확한 응축열전달률 예측과 그 메카니즘 규명이 필수 요건이다. 본 연구에서는 내경 9.7mm, 외경 12.7mm, 길이 1200mm의 수직 이중관 응축기의 압력강하 및 응축열전달특성을 실험적으로 밝혔다. 실험으로부터 Lockart-Martinelli의 상관 관계식을 이용한 수직 응축관내 압력강하 특성을 종래의 실험식들과 비교.검토하고 새로운 압력강하식을 제안하였다. 그리고 종래의 해석방법과는 달리 비환상류 모델을 가정한 해석결과로부터 전 유동양식에 걸쳐 적용할 수 있는 새로운 응축열전달 예측식을 제안하였다.

Keywords

References

  1. Die oberflchen kondensation des wasserdampfes v.60 Nusselt, W
  2. Heat transfer soviet research v.13 no.2 Heat transfer coefficient in steam condensation in a vertical tube Borishanskiy, V.M;D.I.Volkov;N.I.Ivashchenko;O.P.Kerktunova;Y.T.Illarionov
  3. Chem. Engnf. Prog. Symp. Ser v.66 no.102 Interaction of horizontal in-tube condensation heat transfer correlations with a two-phase flow regime map Bell, K.J;J. Taborek;F.Fenoglio
  4. Heat transfer coeffient, Trans. SHASE v.22 Condensing heat transfer of refrigerant 113 in vertical tubes Oh H. K
  5. Heat and Mass Transfer v.9 Condensation heat transfer in the presence of noncondensable in the ficial resistance, super heating, variable properties, diffusion Minkowyce, W. J;E. M. Sparrow
  6. E. I. Dupont pub, Freon prob. div. C 30 Transport properties of freon fluorocarbons, freon technical bull Du-pont
  7. ASHRAE Handbook fundamentals ASHRAE
  8. Chem. Engng. Prog. v.45 no.1 Proposed correlation of data for isothermal two phase, two-component flow in pipes Lockhart, R. W;R. C. Martinelli
  9. Trans. JSME v.42 no.363 Condensation of R 11 inside of horizontal tube, Report No. 1(in Japanese), Flow regime Mapping and pressure drop Fujii, T;H. Honda;T. Nagata;F. Fujii;S. Hozu
  10. Univ. Calif.(Berkeley) Pub. Eng v.2 Dittus, F. W;L. M. K. Boelter
  11. Proc. General Discussion of Heat Transfer. Inst. Mech. Engng. and ASME. 11th-13th The effect of vapor velocity on condensation inside tubes Carpenter, E. F;A. P. Colburn
  12. Trans. ASME, Ser. C, 90-2 A general heat transfer correlation for annular flow condensation Soliman, M;J. R. Schuster;P. J. Berenson
  13. Ref, Engng. Air Con. 2 Study for heat transfer coefficient of the condenser, Part-1(in Korean):Heat transfer coefficient of R-113 during condensing in a vertical tube Oh, H. K;K. O. Cho;J. S. Kim
  14. Heat Transfer Laboratory Report No. DSR 72591-74 Forced-Convection Condensation Inside Tubes, Dept. of Mech. Eng. Traviss, D. P;A. B. Baron;W. M. Rohsenow
  15. Chem. Eng. Prog. Symp. Ser v.30 no.56 Local heat transfer and pressure drops for refrigerant-22 condensing in horizontal tubes Altman, M;F. W. Staub;R. H. Norris