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Model simulation and experiments of flow and mass transport through a nano-material gas filter |
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| Authors: | Xiaofan Yang Zhongquan Charlie Zheng Slawomir Winecki Steve Eckels |
| Affiliation: | 1. Pacific Northwest National Laboratory, Hydrology Group, P.O. Box 999, MS K9-36, Richland, WA 99352, USA;2. Department of Aerospace Engineering, University of Kansas, Lawrence, KS 66045, USA;3. NanoScale Corporation, Manhattan, KS 66506, USA;4. Department of Mechanical and Nuclear Engineering, Kansas State University, Manhattan, KS 66506, USA |
| Abstract: | A computational model for evaluating the performance of nano-material packed-bed filters was developed. The porous effects of the momentum and mass transport within the filter bed were simulated. For the momentum transport, an extended Ergun-type model was employed and the energy loss (pressure drop) along the packed-bed was simulated and compared with measurement. For the mass transport, a bulk adsorption model was developed to study the adsorption process (breakthrough behavior). Various types of porous materials and gas flows were tested in the filter system where the mathematical models used in the porous substrate were implemented and validated by comparing with experimental data and analytical solutions under similar conditions. Good agreements were obtained between experiments and model predictions. |
| Keywords: | Packed-bed Nano-material Numerical models of porous materials Adsorption |
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