Experimental performance of a solar thermal liquid desiccant air conditioning system – A review

Abstract

Solar energy may be the great option to provide the conditioned  air  in  summer,  as  solar  energy  available  in  plenty.Liquid  desiccant  air  conditioning  (LDAC)  system  using  solar energy  is  proposed  as  an  alternative  to  the  conventional vaporcompression  systems  due  to  its  advantage  in,  removing  the  air latent load, friendly to environment, removing of pollutants from the  process  air,  reduction  of  the  electrical  energy,  do  not  using the  harmful  refrigerants  and  protection  to  ozone  layer  depletion. In this paper, the recent works on solar driven liquid desiccant air conditioning system and its advantages are reviewed. The system may  offer  in  terms  of  energy  savings  are  underscored.  A  basic description  of  (LDAC)  system  is provided.  The  regeneration temperature  and  solar  collector  efficiency  are  developed  and  the analysis  highlights  the  performance  of  the  system.  The  literature review  has  highlighted  that  there  is  a  clear  need  for  research  in the  field  of  liquid  desiccant  air  conditioning  system  with  solar energy  in  many  buildings.  This  is  due  to  the  patent  operational advantages the system can deliver in terms of energy saving from 25   to   50%,   operating   costs   and   energy   security,   the low regeneration temperature.The objective of this paper review is to access    using    of    liquid    desiccant    based    air    conditioning, regenerated   by   eco-friendly   renewable   energy.   The   liquid desiccant  systems  present  multifunctional  properties  that  make them  particularly  interesting  in  several  fields  ofapplication. Electric  utilities  have  their  peak  loads  in  hot  summer  and  are often  barely  capable  of  meeting  the  demand,  with  brown-out situations. It is a good application for solar energy due to the fact that the greatest demand for air conditioning occurs during times of highest insolation.