IJE TRANSACTIONS A: Basics Vol. 28, No. 10 (October 2015) 1500-1506   

downloaded Downloaded: 261   viewed Viewed: 2227

M. S. Sundaram and M. Venkatesan
( Received: March 12, 2015 – Accepted: October 16, 2015 )

Abstract    Fins are protrusions on a heat transfer surface to augment heat transfer rate from it. The increase in area exposed to convection in case of finned surfaces results in increased heat transfer rate. In this study heat transfer characteristics of a pin fin with perforation is numerically analyzed. A pin fin is fabricated and experiments are done under forced convection conditions. The experimental results are used for validating the numerical model. The numerical analysis of perforated pin fin with varying parameters such as diameter of perforation, location of perforation and number of perforations is done. The perforated pin fin is found to enhance heat transfer rate compared to ordinary pin fin with a lesser material requirement.


Keywords    perforated pin fin, forced convection, heat transfer,Weight reduction


چکیده    باله­ (پره)ها برآمدگی­هایی بر روی یک سطح انتقال حرارت هستند که به منظور افزایش نرخ انتقال حرارت از آن سطوح ایجاد می­شوند. افزایش مساحت در معرض همرفت در سطوح پره­دار موجب افزایش سرعت انتقال گرما می­شوند. در این مطالعه ویژگی های انتقال حرارت از یک باله­ی میله­ای سوراخ­دار به صورت عددی تحلیل شده است. در این پژوهش یک باله­ی میله­ای ساخته و آزمایش­ها تحت شرایط همرفت اجباری بر روی آن انجام می­شود. از نتایج تجربی برای اعتباربخشی مدل عددی استفاده می­شود. تحلیل عددی سوراخ باله با پارامترهای مختلف از جمله قطر ، محل و تعداد سوراخ­ها انجام شده است. نتایح نشان داد که باله­ی میله­ای سوراخ­دار در مقایسه با نوع عادی منظور نرخ انتقال حرارت بیشتر دارد مواد کمتری در آن به کار رفته است.


1.     Harahap, F. and McManus, H., "Natural convection heat transfer from horizontal rectangular fin arrays", Journal of Heat Transfer,  Vol. 89, No. 1, (1967), 32-38.

 2.     Bejan, A. and Morega, A.M., "Optimal arrays of pin fins and plate fins in laminar forced convection", Journal of Heat Transfer,  Vol. 115, No. 1, (1993), 75-81.

3.     El-Sayed, S.A., Mohamed, S.M., Abdel-latif, A.A. and Abdel-hamid, E.A., "Experimental study of heat transfer and fluid flow in longitudinal rectangular-fin array located in different orientations in fluid flow", Experimental Thermal and Fluid Science,  Vol. 29, No. 1, (2004), 113-128.

4.     Ojha, S., "Cfd analysis on forced convection cooling of electronic chips", National Institute of Technology Rourkela,  (2009),

5.     Hannani, S.K., Sadeghipour, M. and Nazaktabar, M., "Natural convection heat transfer from horizontal cylinders in a vertical array confined between parallel walls", International Journal of Engineering Transactions A,  Vol. 15, (2002), 293-302.

6.     Kameoka, T., Sakamoto, T. and Nakamura, K., "An experimental investigation on heat transfer by pin fins fixed on a plate",  (1970).

7.     Balachandar, C., Arunkumar, S. and Venkatesan, M., "Numerical studies on natural convection heat transfer–fins with closed top", in Applied Mechanics and Materials, Trans Tech Publ. Vol. 592, (2014), 1682-1686.

8.     Sparrow, E., Ramsey, J. and Altemani, C., "Experiments on in-line pin fin arrays and performance comparisons with staggered arrays", Journal of Heat Transfer,  Vol. 102, No. 1, (1980), 44-50.

9.     Khoshravan, E. and Soleimani, G., "A numerical study of natural convection and radiation interaction in vertical circular pin", International Journal of Engineering,  Vol. 10, No. 3163.

10.   Huang, G.-J., Wong, S.-C. and Lin, C.-P., "Enhancement of natural convection heat transfer from horizontal rectangular fin arrays with perforations in fin base", International Journal of Thermal Sciences,  Vol. 84, (2014), 164-174.

11.   Yu, X., Feng, J., Feng, Q. and Wang, Q., "Development of a plate-pin fin heat sink and its performance comparisons with a plate fin heat sink", Applied Thermal Engineering,  Vol. 25, No. 2, (2005), 173-182.

12.   Chapman, C.L., Lee, S. and Schmidt, B.L., "Thermal performance of an elliptical pin fin heat sink", in Semiconductor Thermal Measurement and Management Symposium, 1994. SEMI-THERM X., Proceedings of 1994 IEEE/CPMT 10th, IEEE. (1994), 24-31.

13.   Yang, J., Zeng, M., Wang, Q. and Nakayama, A., "Forced convection heat transfer enhancement by porous pin fins in rectangular channels", Journal of Heat Transfer,  Vol. 132, No. 5, (2010), 051702.

14.   Shaeri, M. and Yaghoubi, M., "Numerical analysis of turbulent convection heat transfer from an array of perforated fins", International Journal of Heat and Fluid Flow,  Vol. 30, No. 2, (2009), 218-228.



International Journal of Engineering
E-mail: office@ije.ir
Web Site: http://www.ije.ir