Review of research in Exergy analysis and energy of solar water desalination

In this paper disburse exergy analyse and energy analyse per use from the exiting model at some of solar stills and mechanism of on solar still constituent glass cover,collector(absorber sun energy),inlet brine water and sump survey by exergy analysis. also exerjy and energy balance reffered from the other parts of solar still. And express dominant relations.also styles improvement efficiency at other parameters at solar stills by sevral styles taken from exergy and enerjy described and results will represent. Finally we will try with a short comparsion recognized ineffective portion in the solar stills and explain ways to improve efficiency.