• If the Flash symbol changes to a green wire-frame image, this indicates that the Flash has not converged. This is a result of the outlet streams changing from zero flow to a non-zero flow.
• If you run the model again the outlet flows will not change, the Flash is converged and it will be drawn normally.

After convergence

• The Flash sets the output streams' state and composition. The flows are colored corresponding to the Streams Color Chart.

• The properties after convergence of the Water_Gas stream and Liquor_Stream are shown bellow.

Exercise

Add various amounts of Na+ to see how dissolved solids affect boiling point rise.

• Change the flow of Na+ in the inlet stream. Double-click the stream, and modify the value.
• Press Ok. Re-run the model.
• Double-click one of the output streams to see the saturation temperature.