The simultaneous cooling in the dehumidification of an internally-cooled process is quite different from
an adiabatic process that uses liquid desiccant. In the present study, the operating performance of an
internally-cooled process was examined through both experimental tests and simulation analysis. An
internally-cooled dehumidifier made of stainless steel was designed, and experimental results in different
working conditions were analyzed using a lithium bromide (LiBr) aqueous solution. The moisture
removal rate, dehumidifying efficiency, and volume mass transfer coefficient were adopted as indices to
evaluate the performance. The effects of the inlet parameters on these performance indices were
investigated. The predicted results by the numerical model agreed well with the experimental results.
The validated model was then utilized to predict the performance of the entire internally-cooled/heated
air handling system, in which low regeneration temperature could be realized. An internally-cooled/
heated system driven by the exhaust heat of heat pump was then proposed, and COP was in the range of