Naufal Rozaan

Hello, I have a heat exchanger model with the file attached below. I am planning to perform dynamic modeling, but I am still encountering some issues. I have tried several approaches, but I am still getting the following error message: PE-HE: Tried to calculate equilibrium with invalid mixture composition: { NaN, NaN, } I believe the issue lies in the configuration of the dynamic mode properties, because I’ve experienced a similar issue before and managed to resolve it. However, in this model, I...

The objective of my current modeling is to observe the dynamic characteristics of the system without applying any control on any part. I simply want to model the dynamic condition when the parameter on hs_input experiences fluctuations. In this case, is the use of a valve still necessary? As a follow-up, I attempted to model the dynamic condition in the attached file. The purpose of this dynamic modeling is also to simulate fluctuations in the heating flow modeled using the event sets feature. However,...

I am currently performing a dynamic simulation for the Heat Exchanger and Cooler that I will be using in the Partially Evaporated Organic Rankine Cycle (PE-ORC) model. However, I do not fully understand how the dynamic mode properties work for these two components and how they affect the dynamic simulation results. I have tried reading the user guide, but it does not explain the equations that underlie the dynamic mode properties and their impact on the simulation results. I would appreciate your...

Dear Daniel, First of all, thank you very much for providing DWSim software, which has been extremely helpful in performing process simulations. I am working on a power generation process using an organic Rankine cycle with partial evaporation (Partially Evaporated Heat Exchanger). I have attached the Partially Evaporated Heat Exchanger model in DWSim above, which you can download. I would like to perform a dynamic modeling analysis to understand the characteristics of the heat exchanger in handling...