P$6.$

Draw a diagram for a Double Effect Evaporation unit. Develop a model for such a unit. Find the Performance ratio, the recovery ratio, the specific evaporator area, the specific condenser area, the specific cooling water flow rate.

A SEE has the followings:

The distillate product flow rate, $Md,$ is $1k\frac{g}{s}.$; The boiling

Salinity of the brine blow down, $xb,$ is $70,000ppn$ Salinity of the feed seawater, $xcw,$ is $42,000ppm.$