Question

The following set of specifications is used in solution of the system model: - The seawater temperature, Tcw, varies over a range of 5 to 30∘C. - The feed water temperature, T, is less than the brine boiling temperature by 4 to 15∘C. - The steam temperature, Ts​, is higher than the brine boiling temperature by 4 to 15∘C. - The distillate flow rate, M d, is always kept constant at 1 kg/s. - The seawater salinity range is 32,000 to 42,000 ppm. - The salinity of the rejected brine, Xb, is 75000 ppm. - The boiling temperature, Tb, varies over a range of 55 to 100∘C. - The heat capacity of seawater, distillate, and reject brine are assumed constant and equal to 4.2 kJ/kg ∘C.

Answer 1

Step-by-step explanation:

• Seawater temperature (Tcw): 5 to 30∘C

• Feed water temperature (T): Brine boiling temperature - 4 to 15∘C

• Steam temperature (Ts): Brine boiling temperature + 4 to 15∘C

• Distillate flow rate (Md): Constant at 1 kg/s

• Seawater salinity range: 32,000 to 42,000 ppm

• Salinity of rejected brine (Xb): 75,000 ppm

• Boiling temperature (Tb): 55 to 100∘C

• Heat capacity of seawater, distillate, and reject brine: Assumed constant at 4.2 kJ/kg ∘C.