As natural resources are becoming limited and energy price dramatically increased, energy utilization with
efficient systems is required to be used in desalination technologies. Freezing is a well known technique for
water desalination. In the present paper, a new proposed system depends on optimization of utilizing the
heat flow of heat pump system to increase the whole system efficiency is introduced. The suggested system
overcomes a lot of disadvantages of traditional freezing methods of desalination like ice handling, special
compressor types, etc. In the suggested system, the ice washing and melting process occur at the same place
of formation by reversing refrigerant flow through the vapor compression cycle so there is no need for ice
handing mechanical systems. A detailed description of the system and thermal analysis are represented with
simple cost analysis. Cost comparing with other methods gives a promising lower cost for the suggested
system with respect to other systems.