Co-design of Aspen and htri
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First, I understand that a preliminary analysis is carried out using Aspen, followed by a detailed design using htri. 1. But in Aspen, should Heater or HEATX be used? 2. I noticed that in most examples on the forum, Heater is used; however, when exporting property data to htri, only the data related to cold or hot flow, namely the Hcurve, is available. Do we have to enter the data for the other flow types manually? 3. If internal fluid flow within the unit is used for heat exchange instead of utility services, it seems even more difficult to accurately simulate the heater, right? I have been self-studying for a while now, and I hope those with more experience can offer some guidance!
The last edit to this post was made by Dream 2008 on 2010-12-27 at 12:09. Several modules in Aspen, including Heater, HeatX (also known as RadFrac), can generate Hcurves for mass flow; among them, modules such as Heater and RadFrac can only generate Hcurves for the material side, while HeatX can generate them for both sides. If heat exchange is carried out through utility systems, the data related to those utilities can be selected directly in HTRI; whereas the data related to the materials can either be exported from Hcurve or calculated by selecting components and equations in HTRI. Please check the relevant tutorials for more information. To export the Hcurve data from Aspen to htri, either Aspen’s built-in tool HT*NT can be used, or a small program I wrote previously can be utilized. http://bbs.hcbbs.com/thread-493399-1-1.html
Dream 2008 – I’m using the program you developed right now. I understand the situation you described, but when I was studying other people’s previous projects, I noticed that heaters were always used, and in HTRI there are two Hcuvre units related to logistics (not part of the utility systems). Also, they use heaters to simulate even the reactors.
Commonly used components can be directly entered into HTRI, and HTRI will calculate the relevant data on its own.
The process simulation software currently used in collaboration with HTRI is Honeywell’s UniSim Design; Honeywell and HTRI are in a strategic partnership