Comparison of the principles behind HTRI importing material properties from PROII

Thread Content

There are several methods for generating the physical properties of process materials in HTRI, such as using its own property database and property calculation methods; however, at present this database can only be used to generate some utility materials or simple materials. For those with more complex compositions or less common components, it is necessary to import data from PROII. I have a few questions regarding the import of material properties from PROII; please give me some guidance. There are three ways to import property data from PROII. One method is to use the Property Generator on the page for properties of hot and cold streams; this allows only the inlet or outlet stream to be imported, thereby generating property values for the state from the inlet to the outlet. Since the inlet logistics have a single temperature and pressure, I’m curious about how HTRI generates multiple sets of data ranging from the inlet temperature and pressure to the outlet temperature and pressure Did HTRI identify PROII’s property calculation methods and components, and then use PROII’s computing engine to regenerate them? If that’s not the case, then how are the other data obtained? The second method is to use the Import Case option in HTRI’s FILE menu to import the heat exchanger parameters; this way, the properties at the inlet and outlet points are imported. It is possible to insert several points between these two points; the insertion should be carried out by HTRI. Is it a linear fitting formula? I am now inclined toward this method, as after all two points are introduced; the first method only introduces one point, and it’s unclear how the other data is generated. There is another method, a so-called legendary one, which I have not tried personally; it involves using the Hcurve module in PROII. This module can generate relatively accurate property values for heat transfer, but I could find no information on how to view the results generated or how to import them into HTRI. I would appreciate any guidance from those who are more experienced. The above is for discussion; thank you all for your suggestions.