Two-phase, three dimensional, a single slope and double slope single basin still were simulated using ANSYS
FLUENT v19.2. Simulations were made done for evaporation and condensation process at Delhi's climate conditions (27.0238°
N, 74.2179° E). Temperature inside the single slope solar still is maximum between 12:00 to 13:00 hrs while the double slope
still has a low temperature at the same time, compared to the single still. The maximum and minimum temperature of the watervapor mixture inside the single slope still were calculated 54.9445℃ and 19.4401 ℃, whereas, in double slope, the maximum
and minimum temperature of the water-vapor mixture inside the still was 52.21 ℃ and 12.6988℃.
