Smith AG, Smith MW (Dstl) & Taylor K.
Prediction of heat and mass transfer in canister filters
Publication: PHOENICS User Conference, Melbourne 2004
Canister filters typically comprise of a cylindrical body containing a packed bed of material which can adsorb toxic gases and vapours from the air. In previous work, pressure drop prediction capability was created based on linking the Ergun equation to the derived voidage distribution within the packed bed. An adsorption model has also been added using suitable source terms for a contaminant. This paper describes the application of these physical modelling techniques to a respirator canister. The geometry of the canister is defined as a PHOENICS BFC mesh and the flowfield is solved with transient, i.e. breathing, flow boundary conditions.
Back to publications