Thermal Analysis for Heat Transfer Enhancement in Perforated Pin Fins of Various Shapes with Staggered Arrays

ABSTRACT

The present work investigates the enhancement of heat transfer rate through staggered pin fins of different shapes with different perforation geometries, namely circular, diamond shaped and elliptical type. Three dimensional computational fluid dynamics simulation has been carried out to analyze the effects of fin geometry and dimension of perforation as well as the shape of fin to enhance heat transfer rate against pressure loss. Results show that the heat transfer rates of perforated fins up to certain perforation number and size are always greater than the solid ones and with the change of fin shape and perforation geometry heat transfer rate also improves significantly. On the other hand pressure drop through heat sink decreases not only with increasing perforation number but also with the size of perforation. Moreover, variation of pressure drop of perforated fins is influenced with fin geometry.

Additional information

Notes on contributors

Ambarish Maji

Ambarish Maji graduated in Mechanical Engineering from Sikkim Manipal Institute of Technology, Sikkim, India in 2010. He obtained his M. Tech. in Manufacturing Engineering and Technology from Manipal University Jaipur, Rajasthan, India in 2014. Presently he is a research scholar in the Department of Mechanical Engineering, National Institute of Technology Silchar, Assam, India. His research interests includes heat transfer, computational fluid dynamics and optimization.

Dipankar Bhanja

Dipankar Bhanja is an Assistant Professor in the Department of Mechanical Engineering in NIT Silchar, Assam. Before that he was in Dr. B. C. Roy Engineering College, Durgapur, West Bengal from August 2004 to February 2013 as a faculty in Mechanical Engineering department. He was also working as a Lecturer in Dumkal Institute of Engineering and Technolgy, Murshidabad, West Bengal since February 2002. He did his B.E. (Mechanical) from Jalpaiguri Government Engineering College under North Bengal University in the year of 2000. After that he did M.E. from Jadavpur University in 2002. He is the life member of Institute of Engineers. He has 17 papers in various international journals and conferences.

Promod Kumar Patowari

Promod Kumar Patowari obta-ined B.Tech. in Mechanical Engineering from North Eastern Regional Institute of Science and Technology, Itanagar in 1994, M.E. in Production Engineering from Jadavpur University, Kolkata in 1999, and Ph.D. from Indian Institute of Technology Kharagpur in 2008. He joined as faculty member in the Department of Mechanical Engineering of National Institute of Technology Silchar in 1995 and presently serves as an Associate Professor. He is the life member of professional bodies like Indian Society for Technical Education and Institute of Smart Structures and Systems. He has around 40 papers in various international journals and conferences.

Balaram Kundu

Balaram Kundu is a Professor in the Department of Mechanical Engineering at Jadavpur University, Kolkata, India. He graduated in Mechanical Engineering from Reginal Engineering College Durgapur (Presently NIT Durgapur) in 1993 and post graduated in Thermal Engineering from Bengal Engineering College (Deemed University) (at present IIESTS) in 1995. He received his Ph.D. Degree in Mechanical Engineering from IIT Kharagpur in 2000. He worked as a Research Professor in the School of Mechanical Engineering at Hanyang University, Seoul, South Korea for two years and nine months. His area of expertise includes: analytical heat transfer, solar collector, thermal insulation, extended surface heat transfer, fin-and-tube heat exchanger, and biological heat transfer. He is the author of about 90 technical papers published in referred international journals. He is recipient of Institutional Medal for the best paper published in the Journal of the Institution of Engineers (India), Outstanding Faculty and Scientist Award – the VIFFA 2015, and CEE Teacher's Excellence Award 2015, Distinguished Scientist – VIRA 2017. He is an Editor/Editorial Board Member of 17 international Journals.