설비공학논문집 (Korean Journal of Air-Conditioning and Refrigeration Engineering)

  • 제24권7호
  • /
  • Pages.560-566
  • /
  • 2012
  • /
  • 1229-6422(pISSN)
  • /
  • 2465-7611(eISSN)
대한설비공학회 (The Society of Air-Conditioning and Refrigerating Engineers of Korea)
권호 표지
DOI QR코드

DOI QR Code

관 단면형상 변화에 따른 열전달 특성에 관한 수치해석적 연구

Numerical Study for Heat Transfer Characteristics Varying Cross-Sectional Shape of a Tube

  • 박훈채 (한국기계연구원 환경.에너지기계연구본부) ;
  • 최항석 (연세대학교 환경공학부) ;
  • 김석준 (한국기계연구원 환경.에너지기계연구본부)
  • Park, Hun-Chae (Environmental and Energy Systems Research Division, Korea Institute of Machinery and Materials) ;
  • Choi, Hang-Seok (Department of Environmental Engineering, Yonsei University) ;
  • Kim, Seock-Joon (Environmental and Energy Systems Research Division, Korea Institute of Machinery and Materials)
  • 투고 : 2012.04.07
  • 발행 : 2012.07.10
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

Numerical study has been carried out to investigate heat transfer and pressure drop characteristics for streamlined shape tubes. The flow and thermal fields are investigated with varying diameter ratio of the tube ranging from 0.4 to 2.5 and Reynolds number ranging from 10,000 to 30,000. The results show that heat transfer per unit fan power is maximum at $D_2/D_1=0.8$. Furthermore, the heat transfer per unit fan power of streamlined shape tubes was compared with circular tube. The heat transfer per unit fan power of streamlined shape tube was larger than that of circular tube.

키워드

참고문헌

  1. Nouri-Borujerdi, A. and Lavasani, A. M., 2007, Experimental study of forced convection heat transfer from a cam shaped tube in cross flows, Int. J. Heat and Mass Transfer, Vol. 50, pp. 2605-2611. https://doi.org/10.1016/j.ijheatmasstransfer.2006.11.028
  2. Talaat, A. I. and Gomaa, A., 2009, Thermal performance criteria of elliptic tube bundle in crossflow, Int. J. Thermal Sciences, Vol. 48, pp. 2148-2158. https://doi.org/10.1016/j.ijthermalsci.2009.03.011
  3. Yun, Y. Y. and Lee, W. Y., 2000, Heat transfer characteristics of oval-tube heat exchanger, Korean Journal of Air-Conditioning and Refrigeration Engineering, Vol. 12, pp. 292-301
  4. Wilcox, D. C., 2004, Turbulence modeling for CFD, DCW Industries, Inc. 2nd Ed.
  5. CD-adapco, 2010, STAR-CCM+ user guide version 5.04, CD-adapco, New York.
  6. Scholten, J. W. and Murray, D. B., 1998, Unsteady heat transfer and velocity of a cylinder in cross flow-I. Low free stream turbulence, Int. J. Heat and Mass Transfer, Vol. 41, pp. 1139-1148. https://doi.org/10.1016/S0017-9310(97)00250-0
  7. Zukauskas, A., 1972, Heat transfer from tubes in crossflow, Advances in Heat Transfer, Academic Press, New York, Vol. 8, pp. 93-160.
  8. Buyruk, E., 1999, Heat transfer and flow structures around circular cylinders in cross-flow, Tr. J. of Engineering and Environmental Science, Vol. 23, pp. 299-315.
  9. Ramirez, C., Murray D. B., and Fitzpatrick, J. A., 2002, Convective heat transfer of an inclined rectangular plate, Experimental Heat Transfer, Vol. 15, pp. 1-18. https://doi.org/10.1080/089161502753341834