“…MED can achieve higher PR than MSF with identical heat transfer area and the same temperature difference between the bottom and the first stage [3] due to high heat transfer coefficient applying the thin film evaporation in which brine occurs on one side of the tube and the condensation of vapor occurs on the other side of tube. The pumping requirements are also lower compared to MSF, which equal to about 2 kWh/m 3 that is half of that energy required for MSF [2]. Due to these advantages, MED has recently gained more market shares in the Gulf region.…”