Effect of Wind Velocity on the Atmospheric Dispersion of CO2-Depleted Air in Direct Air Capture Systems
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Effect of Wind Velocity on the Atmospheric Dispersion of CO2-Depleted Air in Direct Air Capture Systems
Wed, 07/05/2025 - 14:00 to 15:00
Location:
Speaker:
Dr Esmaeel Eftekharian
Affiliation:
Commonwealth Scientific and Industrial Research Organisation (CSIRO), Australia
Synopsis:
As the world races to meet climate goals, carbon removal technologies like Direct Air Capture (DAC) are gaining urgency. However, large-scale deployment is still a challenge—primarily due to high costs driven by energy demands. This lecture focuses on a less explored, yet critical aspect of DAC performance: the role of wind in shaping the dispersion of CO2-depleted air released from DAC units. Using Computational Fluid Dynamics simulations, we investigate how wind affects recirculation and spacing requirements in DAC plant layouts. These insights offer practical pathways to optimize system design, reduce energy losses, and support the scale-up of this essential climate solution.
Biography:
Dr Esmaeel Eftekharian is currently a Research Fellow at CSIRO with more than 12 years of experience in Computational Fluid Dynamics (CFD) simulation. He has led different academic and industrial projects in the areas of CO2 direct air capture, fire and wind engineering, multiphase flow, and flow-induced noise problems and has authored over 30 journal and conference papers. He is recognised as a regular reviewer of renowned international journals in his area. He is currently a part of CSIRO CarbonLock Future Science Platform initiative and has developed advanced numerical simulation capabilities based on CFD modelling for direct air capture (DAC) systems. The project aims to optimise these DAC systems with a view to upscaling the technology in Australia, with consideration of future climate change and associated environmental impacts.