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Pubmed for Handhelds

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  • Title: Fume hoods, open canopy type--their ability to capture pollutants in various environments.
    Author: Bender M.
    Journal: Am Ind Hyg Assoc J; 1979 Feb; 40(2):118-27. PubMed ID: 495443.
    Abstract:
    Using field observations, modelling techniques and theoretical analysis, parameters describing the performance and collection efficiency of large industrial canopy fume hoods are established for, a) steady state collection of fume and b) collection of plumes with fluctuating flowrates. Hopper and pool type hoods are investigated. A baffle plate arrangement for placement within hoods is proposed. It prevents recirculation and spillage of fume. Temporary storage of fume surges within the hood is shown to be possible. At a cost of $6 per m3/hr ($10 per ft3/min) of installed fume control system capacity the arrangement promises to save millions of dollars on large new installations and to significantly improve the collection efficiency of many existing systems. A practical application of the results is proposed for the design of electric arc furnace canopy hoods.
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