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Heat Transfer to Power-Law Fluid Flows Through Porous Media

Volume 4, Issue 4, 2001, 10 pages
DOI: 10.1615/JPorMedia.v4.i4.60
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ABSTRACT

Heat transfer and pressure drop were measured for flow of aqueous solutions of Carbopol 934® through a vertical tube filled with porous media. The heated stainless steel test section has an inside diameter of 2.25 cm, and is 200 diameters long. The porosity was varied from 0.32 to 0.68 by using uniform spherical glass beads. Uniform heat flux thermal boundary condition was imposed by passing direct electric current through the tube wall. Over a range of: 45 < Rea < 7000, 21 < Pra < 58, 0.62 < n < 0.80, 1.6 < D/d < 4.5, and the polymer concentration from 250 to 500 parts per million, the friction factor data agreed with the Newtonian prediction. Heat transfer to power-law fluids increases with increasing Rea and Pra, and decreasing porosity. A new correlation was proposed for predicting the heat transfer to power-law fluid flows through confined porous media.

CITED BY
  1. Shukla Rupali, Chhabra R. P., Effect of Non-Newtonian Characteristics on Convective Liquid-Solid Heat Transfer in Packed and Fluidised Beds of Spherical Particles, The Canadian Journal of Chemical Engineering, 82, 5, 2008. Crossref

  2. Goldstein R.J, Eckert E.R.G, Ibele W.E, Patankar S.V, Simon T.W, Kuehn T.H, Strykowski P.J, Tamma K.K, Heberlein J.V.R, Davidson J.H, Bischof J, Kulacki F.A, Kortshagen U, Garrick S, Heat transfer––a review of 2001 literature, International Journal of Heat and Mass Transfer, 46, 11, 2003. Crossref

  3. Shukla Rupali, Dhole S.D., Chhabra R.P., Eswaran V., Convective heat transfer for power law fluids in packed and fluidised beds of spheres, Chemical Engineering Science, 59, 3, 2004. Crossref

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