Experimental study of heat and mass transfer of Solar Powered liquid desiccant regeneration system

Abstract

Liquid desiccant regeneration has an important effect on the performance of a liquid desiccant air
conditioning system. Instead of a conventional packed regenerator an internally heated regenerator is proposed to
achieve better regeneration performance. This paper presents an experimental investigation on the performance of
the internally heated counter flow desiccant regeneration system. Triethylene Glycol (TEG) solution is used as the
working desiccant material in this system. The structured packing used in this system was a finned tube heat
exchanger. The effects of inlet parameters such as air flow rate, relative humidity, desiccant solution flow rate and
desiccant solution concentration on the performance of the system are studied. The performance of the system is
evaluated using the water evaporation rate, regenerator effectiveness, and enthalpy effectiveness.