OSN Designer, a tool for predicting organic solvent nanofiltration technology performance using Aspen One, MATLAB and CAPE OPEN

Multi-scale modelling of OSN batch concentration with spiral-wound membrane modules using OSN Designer

“…The simulation considering ideal solution underestimated the performance of about 13%. These results indicate that thermodynamic non-ideality has significant impact on the process performance when highly concentrated solutions are involved in the process in agreement with previous studies [Peshev and Livingston, 2013;Peeva et al, 2004;Stamatialis et al, 2006]. …”

“…Considering that the collection of thermodynamic and physical data for all the possible solute/solvent combinations by experiments would be prohibitively time consuming, it is useful to rely on a simulation tool to predict the values of these properties. Peshev and Livingston [Peshev and Livingston, 2013] recently proposed a tool, "OSN Designer", which makes OSN unit operations available in process modelling environments such as Aspen Plus, HYSYS and ProSim Plus, to streamline OSN process design. The thermodynamic and physical properties of the solutions were obtained from the Aspen Properties Database or estimated using built-in models in the process modelling environment.…”

“…A mathematical model to describe the batch concentration process is developed, based on combination of the classical solution diffusion membrane transport model and the film theory, to account for the mass transfer effects. The model was implemented via the "OSN Designer" software tool [Peshev and Livingston, 2013]. The membrane transport model parameters as well as all parameters in the pressure drop and mass transfer correlations for the spiral-wound modules were obtained from regression on a limited number of experimental data obtained at steady state conditions [Shi et al, 2015] and used to simulate the performance of a batch concentration process.…”

Energy consumption for desalination — A comparison of forward osmosis with reverse osmosis, and the potential for perfect membranes

“…Hence, we have chosen Aspen Plus as the process simulation software for simulating RO and FO desalination in this study. Further details on the procedure for integrating these models and unit operations in Aspen Plus using CAPE OPEN interface standards can be found in Peshev et al [29].…”

“…The mathematical models for all custom (non-library) unit operations were programmed in Matlab R2012b, and embedded in the Aspen Plus V7.3 environment. The interoperability between the modelling tool, Matlab, and the process simulation suite, Aspen One, was achieved using CAPE-OPEN interface standards, according to the methodology proposed in [29]. To the best knowledge of the authors, this is the first study which utilises Aspen Plus for simulation of FO and RO desalination processes using custom Matlab models.…”