Adsorption modeling for macroscopic contaminant dispersal analysis
Two families of macroscopic adsorption models are formulated, based on fundamental principles of adsorption science and technology, that may be used for macroscopic (such as whole-building) contaminant dispersal analysis. The first family of adsorption models - the Equilibrium Adsorption (EA) Models - are based upon the simple requirement of equilibrium between adsorbent and room air. The second family - the Boundary Layer Diffusion Controlled Adsorption (BLDC) Models - add to the equilibrium requirement a boundary layer model for diffusion of the adsorbate from the room air to the adsorbent surface. Two members of each of these families are explicitly discussed, one based on the linear adsorption isotherm model and the other on the Langmuir model. The linear variants of each family are applied to model the adsorption dynamics of formaldehyde in gypsum wall board and compared to measured data.
- Research Organization:
- Massachusetts Inst. of Tech., Cambridge, MA (USA)
- OSTI ID:
- 6146588
- Report Number(s):
- PB-91-113654/XAB; CNN: 43NANB919513
- Resource Relation:
- Other Information: See also PB--90-219791
- Country of Publication:
- United States
- Language:
- English
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