Improvement of Energy Efficiency using Porous Fins in Heat Exchangers
Commenced in January 2007
Frequency: Monthly
Edition: International
Paper Count: 33117
Improvement of Energy Efficiency using Porous Fins in Heat Exchangers

Authors: Hadi Niknami Esfahani , Hossein Shokouhmand, Fahim Faraji

Abstract:

The forced convection heat transfer in high porosity metal-foam filled tube heat exchangers are studied in this paper. The Brinkman Darcy momentum model and two energy equations for both solid and fluid phases in porous media are employed .The study shows that using metal-foams can significantly improve the heat transfer in heat exchangers.

Keywords: Metal foam, Nusselt number, heat exchanger, heat flux.

Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1081471

Procedia APA BibTeX Chicago EndNote Harvard JSON MLA RIS XML ISO 690 PDF Downloads 2055

References:


[1] V.V. Calmidi, R.L. Mahajan, Forced convection in high porosity metal foams, Journal of Heat Transfer vol. 122, pp 557-565, 2000
[2] V.V. Calmidi, R.L. Mahajan, The effective thermal conductivity of high porosity fibrous metal foams, ASME. J. Heat. Transf.vol. 121, pp 466- 471,1999
[3] K. Boomsma, D. Poulikakos, On the effective thermal conductivity of a three-dimensionally structured fluid-saturated metal foam, International Journal of Heat and Mass Transfer.vol 44, pp 827-836, 2001
[4] Shadi Mahjoob, Kambiz Vafai, A synthesis of fluid and thermal transport models for metal foam heat exchangers, International Journal of Heat and Mass Transfer.vol 51,pp 3701-3711,2008
[5] W. Lu, C.Y. Zhao, S.A. Tassou, Thermal analysis on metal-foam filled heat exchangers. Part I: Metal-foam filled pipes, International Journal of Heat and Mass Transfer.vol 49,pp 2751-2761,2006
[6] C.Y. Zhao, W. Lu, S.A. Tassou, Thermal analysis on metal-foam filled heat exchangers. Part II: Tube heat exchangers, International Journal of Heat and Mass Transfer.vol 49,pp 2762-2770, 2006
[7] L. Tadrist ,M. Miscevic, O. Rahli, F. Topin, About the use of fibrous materials in compact heat exchangers, Experimental thermal and fluid science .vol 28,pp 193-199,2004
[8] A. Bejan, Convection Heat Transfer, second ed., Wiley, New York, 1995.
[9] K. Vafai, C.L. Tien, Boundary and inertia effects on flow and heat transfer in porous media, International Journal of Heat and Mass Transfer,vol 24,pp 195-203.1981
[10] A. Bejan, Convection in Porous Media, Third ed., springer, New York, 2006
[11] W M Kays, M E Crawford, Bernhard Weigand, Convective Heat and Mass Transfer, Mc Graw-Hill, fourth ed, New York,2004
[12] L.Burden, J.Douglas Faires, Numerical analysis, Pws-Kent publishing company, fifth ed, Boston, pp 199-205,1993.