Abstract
The performance analysis of a two-stage air dehumidifier using two feeding lines of liquid desiccant solution is introduced in the present work. The process air is deeply dehumidified through two absorption counter flow stages through dehumidifier stages a and b using a single desiccant cycle. The theoretical model is validated and show good agreement to study the effect of different operating parameters on the performance of the proposed system. For different operating parameters (air and solution mass flow rates, inlet air humidity ratio and temperature, desiccant solution inlet concentration and temperature), the presented results reveal a great enhancement in dehumidification performance by using the proposed system. At the same desiccant solution mass flow and when the inlet air humidity ratio is changed from 0.016 to 0.024kgvkgda-1, an average increase of 49.2% in εy and 48.9 in MRR is achieved compared to a single stage air dehumidifier.
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