The following sections include four case studies for the major desalination processes. All calculations are based on recent economic data extracted from the field data and design studies in the literature. Common assumptions in these calculations include the following: - Plant life (n)=30 years - Electric cost (c)=$0.05/m3 - Average latent heat of heating steam (X)=2200kJ/kg - Steam heating cost (s)=$1.466/MkJ - Performance ratio (PR) of MSF and MEE=8kg product /kg steam - Specific cost of operating labor (i)=$0.1/m3 - Interest rate (i)=5% - Plant availability (f) =0.9 The following sections include four case studies for the major desalination processes. All calculations are based on recent economic data extracted from the field data and design studies in the literature. Common assumptions in these calculations include the following: - Plant life (n)=30 years - Electric cost (c)=$0.05/m3 - Average latent heat of heating steam (X)=2200kJ/kg - Steam heating cost (s)=$1.466/MkJ - Performance ratio (PR) of MSF and MEE=8kg product /kg steam - Specific cost of operating labor (i)=$0.1/m3 - Interest rate (i)=5% - Plant availability (f) =0.9