Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7044753 | Applied Thermal Engineering | 2018 | 27 Pages |
Abstract
The desiccant coated heat exchanger is a structure that allows the simultaneous removal of adsorption heat and dehumidification in a single element. This structure is a system element that can contribute extensively to the indoor air humidity control for new generation dehumidification in air conditioning systems. Besides, the dehumidification efficiency of this system has been found to be better than the conventional desiccant wheel. In this study, a desiccant coated small-scale heat exchanger is evaluated by simulation. Silica gel and aluminium fumarate are analysed as desiccant material coatings in this work. Simulations are performed according to two model configurations which are adiabatic and water-cooled cases respectively. Heat and mass transfer characteristics are determined for the two cases as well as the dehumidification and regeneration capacities. The performances of the two materials are compared based on the results of the simulations. Results of the study show the advantages of the water-cooled dehumidification over the adiabatic dehumidification and silica gel composite coating over aluminium fumarate coating.
Keywords
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Fluid Flow and Transfer Processes
Authors
Turkan Ucok Erkek, Ali Gungor, Hannes Fugmann, Alexander Morgenstern, Constanze Bongs,