Forced Convection Heat Transfer Analysis through Dimpled Surfaces with Different Arrangements
American Journal of Energy Engineering
Volume 3, Issue 3, May 2015, Pages: 37-45
Received: Apr. 20, 2015; Accepted: Apr. 25, 2015; Published: May 11, 2015
Views 3901      Downloads 174
Authors
Hasibur Rahman Sardar, Department of Electronics & Communication Engineering, P.A College of Engineering, Karnataka, India
Abdul Razak Kaladgi, Department of Mechanical Engineering, P.A College of Engineering, Karnataka, India
Article Tools
Follow on us
Abstract
Dimples play a very important role in heat transfer enhancement of electronic cooling systems, heat exchangers etc. This work mainly deals with the experimental investigation of forced convection heat transfer over circular shaped dimples of different diameters on a flat copper plate under external laminar flow conditions. Experimental measurements on heat transfer characteristics of air (with various inlet flow rates) on a flat plate with dimples were conducted. From the obtained results, it was observed that the heat transfer coefficient and Nusselt number were high for the copper plate in which the diameter of dimples increases centrally in the direction of flow (case c) as compared to the other two cases.
Keywords
Forced Convection, Dimples, Heat Transfer, Passive Techniques
To cite this article
Hasibur Rahman Sardar, Abdul Razak Kaladgi, Forced Convection Heat Transfer Analysis through Dimpled Surfaces with Different Arrangements, American Journal of Energy Engineering. Vol. 3, No. 3, 2015, pp. 37-45. doi: 10.11648/j.ajee.20150303.12
References
[1]
Dewan, A., Mahanta, P., Raju,K.S., and Kumar.P.S.,Review of passive heat transfer augmentation techniques. Proc. Instn Mech. Engrs, Part A: J. Power and Energy, Vol. 218, pp. 509–527, 2004.
[2]
Liu ,S, and Sakr ,M.A., comprehensive review on passive heat transfer enhancements in pipe exchangers. Renewable and Sustainable Energy Reviews, Vol.19 pp. 64–81, 2013.
[3]
Zhang, D., Zheng, L., Xie, G., and Xie, Y.,An Experimental Study on Heat Transfer enhancement of Non-Newtonian Fluid in a Rectangular Channel with Dimples/Protrusions, Transactions of the ASME, Vol. 136, pp.021005-10, 2014.
[4]
Beves, C.C., Barber, T.J., and Leonardi,E., An Investigation of Flow over Two-Dimensional Circular Cavity. In 15th Australasian Fluid Mechanics Conference, the University of Sydney, Australia, pp.13-17, 2004.
[5]
Kuethe A. M., Boundary Layer Control of Flow Separation and Heat Exchange. US Patent No. 1191, 1970.
[6]
Afanasyev, V. N., Chudnovsky, Y. P., Leontiev, A. I., and Roganov, P.S., Turbulent flow friction and heat transfer characteristics for spherical cavities on a flat plate. Experimental Thermal Fluid Science, Vol. 7, Issue 1, pp. 1–8, 1993.
[7]
Chyu, M. K., Yu, Y., Ding, H., Downs, J. P., and Soechting, F.O., Concavity enhanced heat transfer in an internal cooling passage. In Orlando international Gs Turbine & Aero engine Congress & Exhibition, Proceedings of the 1997(ASME paper 97-GT-437), 1997.
[8]
Mahmood, G. I., Hill, M. L., Nelson, D. L., Ligrani, P. M., Moon, H.K., and Glezer, B., Local heat transfer and flow structure on and above a dimpled surface in a channel. J Turbomach, Vol.123, Issue 1, pp: 115–23, 2001.
[9]
Yonghui Xie, Huancheng Qu ,Di Zhang ,Numerical investigation of flow and heat transfer in rectangular channel with teardrop dimple/protrusion. International Journal of Heat and Mass Transfer ,Vol 84 pp.486–496,2015
[10]
Farhad sangtarash & hosseinshokuhmand ,Experimental and numerical investigation of the heat transfer augmentation and pressure drop in simple, dimpled and perforated dimpled louver fin banks with an in-line or staggered arrangement ,Applied Thermal Engineering Vol 82 ,pp194-205, 2015.
[11]
Gadhave, G., and Kumar. P., Enhancement of forced Convection Heat Transfer over Dimple Surface-Review. International Multidisciplinary e - Journal .Vol-1, Issue-2, pp.51-57, 2012
[12]
Katkhaw, N., Vorayos, N., Kiatsiriroat, T., Khunatorn, Y., Bunturat, D., and Nuntaphan., A. Heat transfer behavior of flat plate having 450 ellipsoidal dimpled surfaces. Case Studies in Thermal Engineering, vol.2, pp. 67–74, 2014.
[13]
Patel,I.H ., and Borse ,S.H. Experimental investigation of heat transfer enhancement over the dimpled surface. International Journal of Engineering Science and Technology, Vol.4, Issue 6, pp.3666–3672, 2012.
[14]
Faheem Akhtar, Abdul Razak R Kaladgi and Mohammed Samee, Heat transfer augmentation using dimples in forced convection -an experimental approach. Int. J. Mech. Eng. & Rob. Res. Vol 4,Issue 1 ,pp 150-153,2015
[15]
Faheem Akhtar, Abdul Razak R Kaladgi and Mohammed Samee, Heat transfer enhancement using dimple surfaces under natural convection—an experimental study, Int. J. Mech. Eng. & Rob. Res. Vol 4,Issue 1 ,pp 173-175,2015
ADDRESS
Science Publishing Group
1 Rockefeller Plaza,
10th and 11th Floors,
New York, NY 10020
U.S.A.
Tel: (001)347-983-5186