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[Sarishma]

We have modelled a process in ASPEN Plus. To find the energy consumption for the process in ASPEN there were two different ways;

1. ASPEN Economic Analyzer

2. Utilites from simulation environment

 

The ASPEN Economic Analyzer gives the breakdown of energy into electricty, heat and cooling water. The electricty consumption with respect to increase in flow is non-linear while the energy required for heating and cooling water increases linearly.

The Utilites from simulation environment gives the detailed energy consumption at the equipment level. The energy consumption (electricity, heat and cooling water) with respect to increase in flow is linear. 

So to analyze electricity conusmption for different flow rates in ASPEN which approach is correct, ASPEN Economic Analyzer or Utilites from simulation environment?

 

How does ASPEN model energy consumption? Does it include the increase in efficiency of equipments as the flow rate increases (Energy of scale)? 

 

Thank you in advance.