Abstract
An analysis of a two-dimensional cross-flow heat and mass regenerator with conductive heat transfer is presented. The adsorbent is a regular density silica gel. Non-switched and switched operations are considered. An enthalpy effectiveness factor is used to specify the regenerator performance. Eight coupled non-linear partial differential equations specify the process of heat and mass transfer. The equations are solved using a finite difference method. The average Lewis number and C min/C max are assumed to be unity. The effects of Ntu, C r/C min, desiccant content, Biot number and outdoor climate condition on the regenerator performance are analyzed. Both parallel-cross-flow and counter-cross-flow arrangements for sorption are considered. The performance of an ideal regenerator with infinite Ntu and an isothermal wall is analyzed.
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