Sensitivity analysis of the reflux ratio in distillation column design
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When using Aspen for distillation column analysis, the reboiler heat load is taken as the objective variable, while the reflux ratio is used as the input variable; the reflux ratio ranges from 1 to 9. However, the reboiler heat load cannot be found in the vary function – where could the definition be incorrect? It is as shown in the picture below; please give me your advice. Thank you very much!
You are trying to examine the effect of changes in the reflux ratio on the heat load of the reboiler, right? If that’s the case, the reflux ratio should be looked for in vary, rather than the reboiler heat load; it can be Mass-RR or Molar-RR, and the Heater-duty can be defined in define