Journal of Advanced Marine Engineering and Technology

  • 제24권2호
  • /
  • Pages.17-23
  • /
  • 2000
  • /
  • 2234-7925(pISSN)
  • /
  • 2234-8352(eISSN)
한국마린엔지니어링학회 (The Korean Society of Marine Engineering)
권호 표지

한 측에서만 거칠기가 설치된 삼각덕트의 마찰계수와 열전달

Heat Transfer and Pressure Drop Characteristics of Triangular Ducts with One Side Rib-Roughened

  • 안수환 (경상대학교 수송기계공학부, 해양산업연구소) ;
  • 이영석 (경상대학교 기관공학과 대학원)
  • 발행 : 2000.03.01
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

Experimental investigations were conducted to study the forced convection of fully-developed turbulent flow in horizontal equilateral duct fabricated with the same length and equivalent diameter, but different surface roughness pitch ratio(P/e) of 4, 8 and 16 on the one side wall only. The experiments were performed with the hydraulic diameter based Reynolds number ranged from 70,000 to 10,000. The entire bottom wall of the duct was heated uniformly and the other surfaces were thermally insulated. To understand the mechanisms of the heat transfer enhancement, measurements of the heat transfer were done to investigate the contributive factor of heat transfer promotion, namely, the fin effect. And the results were compared with those of previous investigations for similarly configured channels, at which they were roughened by regularly spaced transverse ribs in the rectangular and circular channels.

키워드

참고문헌

  1. Fundamentals of Enhanced Heat Transfer Webb, R.L.
  2. Int. J. Heat Mass Transfer v.21 An Investigation of Heat Transfer and Friction for Rib-Roughness Surfaces Han, J.C.;Glicksman, L.R.;Rohsenow
  3. ASME J. of Heat Transfer v.110 Heat Transfer and Friction Characteristics in Rectangular Channels with Rib Turbulators Han, J.C.
  4. ASME J. of Heat Transfer v.116 Heat Transfer and Friction in Rectangular Channels with Ribbed-Grooved Walls Zang, J.C.;Gu, W.Z.;Han, J.C.
  5. An Experimental Investigation of the Rib Surface Averaged Heat Transfer in a Ribbed Roughened Square Passage Taslim, M.E.;Wadswoth, C.M.
  6. Int. J. Heat Transfer v.36 Periodically Developed Flow and Heat Transfer in an Ribbed Duct Archarya, S.;Dutta, S.;Myrun, T.A.;Baker, R.S.
  7. Proc. or 11th IHTC v.3 Experimental Investigation of Turbulent Heat Transfer and Fluid Flow in Internally Finned Tubes with Surface Roughness Kim, J.H.;Jensen, M.K.
  8. Compact Heat Exchangers(3rd Ed.) Kays, W.M.;London, A.L.
  9. Laminar Flow Forced Convection in Ducts Shah, R.K.;London, A.L.
  10. Convective Heat and Mass Transfer(3rd Ed.) Kay, W.M.;Crawford, M.E.
  11. ASME J. of Heat Transfer v.102 Turbulent Heat Transfer and Fluid Flow in an Unsymmetrically Heated Triangular Duct Altemani, C.A.C.;Sparrow, E.M.
  12. 대한기계학회논문집(B) v.22 no.4 사각 덕트내 요철의 각도 변화에 따른 열전달 특성 우성재;김완식;조형희
  13. Proc. or 11th IHTC v.5 Enhanced Forced Convection in Triangular Ducts by Roughened Surface Kang, H.J.;Wong, T.T.;Leung, C.W.
  14. Thermal Radiation Heat Transfer(2nd ed.) Siegel, R.;Howell, J.R.
  15. Mechanical Engineering v.75 Describing Uncertainties in Single-Sample Experiment Kline, S.J.;McClintock, F.A.
  16. Proc. or 3rd IHTC Forced Convention Heat Transfer from Surfaces Roughened by Transverse Ribs Wilkie, D.
  17. An Asymmetric Turbulent Fluid Flow Induced By Rectangular Ribbed Surface Roughness Bhuiyan, A.
  18. 대한기계학회논문집(B) v.23 no.5 돌출형 거칠기벽이 있는 동심환형관의 유동에 대한 마찰계수 안수환
  19. Int. J. of Heat Mass Transfer v.15 Application of Rough Surface to Heat Exchanger Design Webb, R.L.;Eckert, E.R.G.
  20. ASME J. of Heat Transfer v.115 Heat Transfer and Friction Factor Measurement in Ducts with Staggered and In-line Ribs Hong, Y.J.;Hsieh, S.S.