A Theoretical Model on Internally Cooled Liquid Desiccant Dehumidification and Cooling Processes

Abstract

© 2017 The Authors. Published by Elsevier Ltd. A simple theoretical model has been developed on the coupled heat and mass transfer processes involved in the internally cooled liquid desiccant dehumidification and cooling processes for air-conditioning applications. Governing seven coupled differential equations are solved simultaneously with appropriate boundary conditions using the 4th order Runge-Kutta scheme. The calculation speed is improved remarkably (computational time is less than 6 minutes). The simulation results showed good agreement with the published data with the maximum discrepancy of about 6%. The validated model is used to investigate the performance of dehumidification and cooling of air under different operating conditions. Simulation results show that the internally cooled liquid desiccant dehumidification and cooling processes can dehumidify the air effectively. However, additional sensible cooling of the air is required to maintain comfort condition for air-conditioning applications.