Analysing results

• Results summary — the mass balance closure, feeds and products, heating, cooling and shaft power, and every block's duty.
• Stream table — every stream on a molar or mass basis, exportable as CSV.
• Profiles — a column stage by stage, a reactor along its length, a batch through time, a CSTR's heat curves. Every series exports as CSV.
• Convergence — the torn streams and the residual at every iteration.
• Messages — the errors and warnings, by block.
• AI assistant — sees your flowsheet and results, and explains them. Free plans get five messages a day.
• Report — a PDF design report of the flowsheet (Pro).

1. Choose what to vary: a block's specification — including a reactor's kinetic constants — or a stream property such as a feed's temperature, pressure or composition.
2. Choose its range and the number of points: five on a free plan, up to 41 on Pro.
3. Choose what to watch — any stream property or block result — and run. The chart and table show how it responds.

Vary two things at once and the study runs the whole grid, drawing a family of curves: not just how an output responds, but whether that response changes as something else moves.

Goal seek (Pro) finds the value of one specification that gives the result you want — the heater temperature that makes 50 kmol/h of vapour, the reactor volume for 90% conversion — and can apply it to the flowsheet in one click. It searches within a range you give, so pick one that brackets the answer.