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Effect of flanges on the velocity in front of exhaust ventilation hoods

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008  940208e19781201gbr|||| | |00010|eng d
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1001 ‎$0‎MAPA20080043179‎$a‎Fletcher, B.
24510‎$a‎Effect of flanges on the velocity in front of exhaust ventilation hoods‎$c‎B. Fletcher
520  ‎$a‎The adittion of a flange to a local exhaust ventilation hood can produce a large increase in velocity in front of the hood. It is shown that an optimum flange width exists beyond which there is little further increase in velocity. As hood aspect ratio increases, the effect of flanges increases and the addition of even small flanges to slots can have an appreciables effect. Velocity increases of over 55% have been measured in front of hoods of aspect ratio 16:1
65011‎$0‎MAPA20080585679‎$a‎Higiene industrial
65011‎$0‎MAPA20080605278‎$a‎Contaminantes químicos
65011‎$0‎MAPA20080616441‎$a‎Contaminación atmosférica
65011‎$0‎MAPA20080539566‎$a‎Polvo
65011‎$0‎MAPA20080552923‎$a‎Velocidad
65011‎$0‎MAPA20080537210‎$a‎Aire
65011‎$0‎MAPA20080560997‎$a‎Ventilación
65011‎$0‎MAPA20080612597‎$a‎Sistemas de ventilación
7404 ‎$a‎The Annals of occupational hygiene
7730 ‎$t‎The Annals of occupational hygiene‎$d‎Oxford [etc.]‎$g‎nº 3, December 1978 ; p. 265-269