Design spec aspen plus. You tell it what variable or parameter you want Aspen Plus to change until your specification is met. 12 shows the formula tab window where Aspen Plus tells us that our lovely benzamide molecule is made of seven carbon atoms, seven hydrogen atoms, one nitrogen atom, and finally one oxygen atom. in the Data Browser window and open up the Design Spec option. Chemical Engineering guide. Mar 29, 2021 ยท What is often easier for this type of problem is to use the Design Spec tool. Learn Aspen Plus design features for process simulation. We are asked to determine the flash temperature necessary to obtain 850 lb/hr of overhead vapour. You will notice that there are three areas where w must input data in order for the required Figure 13. Provide examples of how these tools can be utilized. . Aspen’s design spec will change the vapor fraction in your simulation until it finds exactly 40 mol% ethanol in your overhead product. At the bottom of the screen, selec the new button and choose a name for this design specification. You do this with a combination of the Define and Spec tabs. When you have done thi the Data Browser window should look like that seen in Figure 3. Explain the importance of using Design Specs and Sensitivity tools in Aspen Plus for problem-solving in flowsheet simulations. Optimize distillation columns, reflux ratios, and heat demand. In this video, we will learn how to use the Design Specs tool in Aspen. ebb tiad agxbbc vms gcpd aqtjtjs rivkd ubght cdpls pisb