Eftekharian et al. (2025): Prediction of CO₂ capture performance of a direct air capture unit under representative atmospheric flow conditions using large eddy simulation
Esmaeel Eftekharian, Ali Kiani, Vassili Kitsios, Ashok K. Luhar, Paul Feron, Aaron W. Thornton, Kathryn M. Emmerson, IN: Carbon Capture Science and Technology, https://doi.org/10.1016/j.ccst.2025.100545
The authors develop a new numerical model that predicts the performance of DAC units under representative atmospheric flow conditions which captures the interaction between these units and the instantaneous flow fields. A new boundary condition for the CO₂ concentration associated with the CO₂-depleted exit plume was developed. This boundary condition dynamically calculates the time-varying fraction of CO₂ removed from the air (capture rate) and the total mass of CO₂ captured by the system per unit time (capture amount). The authors have also conducted experiments in a lab-scale DAC unit at different inlet air velocities.