The term used in my company is 'core', which is the same as what is used in GPSA.Ī somewhat similar question have been discussed in this forum 3+ years ago, but I did not find the answer there & could not reach the poster (email no longer valid). An overview of the Aspen Physical Property System physical property system, and information about how to use its full range and power, is in the Aspen Plus and Aspen Properties User Guides, as well as in online help and prompts in Aspen Plus and Aspen Properties. Using Aspen HYSYS Dynamics, many scenarios in which steady-state operation is interrupted can be considered and designed for. Lastly, what is the definition of 'zone' and 'set' used in hysys for LNG exchanger? I am not familiar with LNG exchanger and cannot find satisfactory description even after reviewing hysys manual & tutorials. Aspen HYSYS Dynamics helps engineers model the dynamic changes in performance expected for a compressor experiencing a disturbance, as well as the response of a control loop connected to the compressor. Could you please inform me what they are? Or do I need to input everything? I am guessing (correct me if I'm wrong) that there are a few main parameters that strongly influence the model, and they can be used to tune the module, while the rest are not so impactful and can be left in default values.

My question is how do I model this equipment so that it will solve & run accurately in hysys dynamics? Hysys requires a bunch of information for dynamic mode such as zone geometry, layer properties, convective U, k values, etc. For now I am doing a simple 2-stream counterflow configuration shown in the attachment.

The process simulation capabilities of Aspen Plus enables engineers to predict the. Additionally, in Aspen HYSYS V8.6, you can model acid gas removal using a physical solvent (DEPG), take into account ammonia contamination, and model gas treating processes that are using phosphoric acid as a stripping promoter. The steady state model is available and I am filling out the information needed to run in dynamic mode. Aspen Plus solves the critical engineering and operating problems that arise throughout the lifecycle of a chemical process, such as designing a new process, troubleshooting a process unit or optimizing operations of a full process like an Acrylic Acid plant. I am trying to simulate an LNG exchanger (brazed aluminum heat exchanger type) in hysys dynamics.

Aspen hysys depg model