CROSS-EFFECT OF HEAT AND MASS TRANSFER OF LU1KOV EQUATION: MEASUREMENT AND ANALYSIS |
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| Authors: | Hu Songtao Li Xuquan Liu Guodan Lian Leming Li Lineng |
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| Affiliation: | 1. Department of Environment Engineering , Qingdao Institute of Architecture and Engineering , Qingdao, 266033, P.R.China;2. Department of Thermal Energy Engineering , Harbin University of Architecture and Engineering , Harbin, 150008, P.R.China |
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| Abstract: | Abstract This paper mainly focuses on cross-effect of heat and mass transfer of capillary porous media which A.B.Luikov set up on irreversible thermodynamics principle. On the basis of perfecting the equations of heat and mass transfer, the heat and mass transfer parameters are determined during drying processes, and thermal gradient coefficient δ and moisture gradient coefficient ξ are obtained which show the cross-effect of heat and mass transfer. Thus the fundamentals are provided for quantitative analysis of cross-effect of heat and mass transfer. The convective drying mathematical model under the first unsteady boundary condition is therefore proposed. By the application of Henry transform, the theoretical solution of unsteady drying process is given and its validity is verified |
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| Keywords: | drying model irreversible thermodynamics porous media |
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