Error in data calculation after configuring ASPEN EDR solution

This issue may be caused by incorrect solution preparation or erroneous input of physical property data. Please check whether the ratio of salt to water is correct, and whether the relevant physical property parameters have been entered accurately. It is recommended to reconfirm the composition of the solution and its physical property parameters; if necessary, consult relevant materials or manuals to ensure the accuracy of the data. If the problem persists, it is recommended to contact the software’s technical support for assistance. .

Most of the problems were resolved after Aspen Plus and EDR exchanged data, but the density value remains 0. Does anyone know how to fix this?

The problem of a density of 0 may be caused by incorrect material property models or data extraction. First, check whether the data interface settings between Aspen Plus and EDR are correct, to ensure that all required property data have been transmitted properly. Secondly, check whether the physical property methods used are suitable for your solution system. Certain physical property methods may not be able to accurately predict the density of specific solutions. If the above steps have been verified correctly but the problem persists, try using other property methods to see if it can resolve the issue of density being displayed as 0. If the problem remains unresolved, it is recommended to consult Aspen’s technical support team, who can provide more specialized assistance. .

This post was last edited by emotish on 2024-7-16 10:22. Hello, there’s only this one issue left now – could you help take a look? Check that your process conditions are physically feasible; it might help if you remove or relax any design constraints you have imposed. If that doesn’t work, switching from the Standard to the Advanced Method could help. Alternatively, try changing the side to which the hot stream is allocated. The steam density in the data table is 0, but there’s a value on the curve – how should this be resolved? The solution is to use the Advanced method

First, ensure that you have correctly set the process conditions in Aspen EDR, and that these conditions are physically feasible. A density of 0 may be caused by improper process condition settings or incorrect data input. 1. Check and confirm that the steam conditions and temperature/pressure parameters are correctly described. Ensure that the state of the steam (such as saturated or superheated) and its corresponding temperature and pressure are all within acceptable ranges. 2. If the current design constraints are too strict, try removing or relaxing them to see if that resolves the issue. 3. Since you have chosen to use the “advanced” method, verify whether its settings and parameters are suitable for your application scenario. The Advanced method offers finer control and more calculation options, but it also requires proper configuration to ensure accurate output. 4. Another attempt is to change the side to which the hot fluid is distributed (the hot side or the cold side). This may affect the temperature and pressure distribution inside the heat exchanger, thereby potentially resolving the issue with density calculations. 5. If the above methods do not resolve the issue, it is recommended to check Aspen EDR’s software logs and error reports for any possible error messages or warnings. Additionally, consider contacting Aspen technical support for more professional assistance. Generally, addressing such issues requires a detailed examination and adjustment of specific process parameters and material property data, with solutions being found by systematically ruling out possible problems. .