Transactions of the Korean Society of Mechanical Engineers B (대한기계학회논문집B)

The Korean Society of Mechanical Engineers (대한기계학회)
권호 표지
DOI QR코드

DOI QR Code

Pin Fin Optimization Based on the Ratio of Heat Loss to the Maximum Heat Loss

최대 열손실에 대한 열손실 비에 기준한 Pin 핀의 최적화

  • 강형석 (강원대학교 기계.메카트로닉스공학부)
  • Published : 2008.11.01
Download PDF
⟨ Previous Next ⟩

Abstract

A pin fin with variable fin base thickness is optimized based on the ratio of heat loss to the maximum heat loss using a two-dimensional analytic method. The temperature profile along the normalized radius position in the fin is presented. For fixed fin outer radius, the optimum heat loss, fin length and efficiency as a function of fin base thickness, outer radius, convection characteristic numbers ratio and ambient convection characteristic number are presented. One of the results shows that the effect of fin outer radius and ambient convection characteristic number on the optimum fin length is remarkable.

Keywords

References

  1. Casarosa, C. and Franco, A., 2001, "On the Optimum Thermal Design of Individual Longitudinal Fins with Rectangular Profile," Heat Transfer Engineering, Vol. 22, No. 1, pp. 51~71 https://doi.org/10.1080/01457630150215721
  2. Abrate, S. and Newnham, P., 1995, "Finite Element Analysis of Triangular Fins Attached to a Thick Wall," Computer & Structures, Vol. 57, No. 6, pp. 45~57 https://doi.org/10.1016/0045-7949(95)00105-P
  3. Yu, L. T. and Chen, C. K., 1999, "Optimization of Circular Fins with Variable Thermal Parameters," J. of The Franklin Institutes, Vol. 336(B), pp. 77~95 https://doi.org/10.1016/S0016-0032(97)00021-5
  4. Razelos, P. and Satyaprakash, B. P., 1993, "Analysis and Optimization of Convective Trapezoidal Profile Longitudinal Fin," ASME Journal of Heat Transfer, Vol. 115, pp. 461~463 https://doi.org/10.1115/1.2910699
  5. Kang, H. S. and Look, D. C. Jr., 2007, "Optimization of a Thermally Asymmetric Convective and Radiating Annular Fin," Heat Transfer Engineering, Vol. 28, No. 4, pp. 310~320 https://doi.org/10.1080/01457630601122609
  6. Gerencser, D. S. and Razan, A., 1995, "Optimization of Radiative-Convective Arrays of Pin Fins Including Mutual Irradiation Between Fins," Int. J. Heat Mass Transfer, Vol. 38, No. 5, pp. 899~907 https://doi.org/10.1016/0017-9310(94)00197-4
  7. Razelos, P., 2003, "A Critical Review of Extended surface Heat Transfer Coefficient," Heat Transfer Engineering, Vol. 24, pp. 11~28 https://doi.org/10.1080/714044411
  8. Gerencser, Su, R. J. and Hwang, J. J., 1998, "Analysis of Transient Heat Transfer in a Cylindrical Pin Fin," J. Thermophysics, Vol. 12, No. 2, pp. 281~283 https://doi.org/10.2514/2.6334
  9. Almogbel, M. and Bejan, A., 2000, "Cylindrical Trees of Pin Fins," Int. J. Heat Mass Transfer, Vol. 43, pp. 4285~4297 https://doi.org/10.1016/S0017-9310(00)00049-1
  10. Kang, H. S., 2007, "Optimization of a Pin Fin based on the Fixed Diameter," Proceedings of the KSME 2007 Fall Annular Meeting, pp. 1637~1641