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Heat and Mass Transfer

, Volume 39, Issue 5–6, pp 471–476 | Cite as

Heat and moisture diffusion in slab products due to convective boundary condition

  •  B. Yilbas
  •  M. Hussain
  •  I. Dincer
Original

Abstract.

In the present study, a closed form solution for the temperature distributions inside the solid substrate due to convective boundary condition at the surface is presented, particularly for drying applications. The analytical solution for the diffusion equation is introduced with constant concentration at the surface case. Temperature and moisture distributions inside apple slab are computed in this regard. It is found that temperature rises rapidly in the surface region of the substrate material during the early heating period and as the heating period progresses, temperature gradient attains almost steady value with advancing time. Moisture content variation in the surface region is considerably high in the early period and as time progresses, the rate of change of concentration in the substrate reduces. The present model is verified with actual data for heat conduction and moisture diffusion and a considerably high agreement is found.

Keywords

Heat Conduction Diffusion Equation Form Solution Closed Form Solution Substrate Material 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag 2003

Authors and Affiliations

  •  B. Yilbas
    • 1
  •  M. Hussain
    • 1
  •  I. Dincer
    • 1
  1. 1.Department of Mechanical Engineering King Fahd University of Petroleum and Minerals Dhahran 31261, Saudi Arabia

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