Prediction of drying times for irregular shaped multi-dimensional moist solids


Sahin A. Z. , Dincer I.

JOURNAL OF FOOD ENGINEERING, vol.71, no.1, pp.119-126, 2005 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 71 Issue: 1
  • Publication Date: 2005
  • Doi Number: 10.1016/j.jfoodeng.2004.10.024
  • Title of Journal : JOURNAL OF FOOD ENGINEERING
  • Page Numbers: pp.119-126
  • Keywords: drying, drying time, mass transfer, modeling, air flow, multi-dimensional object, SIMULTANEOUS HEAT, WOOD PRODUCTS, THAWING TIMES, FOODS, DIFFUSIVITIES, PROPAGATION, BEHAVIOR, MASS

Abstract

In this paper, we deal with development of a new analytical model for predicting drying times of irregular shaped multi-dimensional moist solids. Irregular products are approximated by representative elliptical cylinder and ellipsoid for two- and three-dimensional shapes, respectively. Using the experimental drying parameters that are available from the literature, drying times of irregular, multi-dimensional products are determined through the present models. In this regard, geometric shape factors for elliptic cylinder and ellipsoid are employed and based on the reference drying time for an infinite stab geometry. In addition, the present models are verified through comparison with experimental drying times of several food products. The accuracy of the predictions using the present models is then discussed. (c) 2004 Elsevier Ltd. All rights reserved.