Centreline velocity characteristics of rectangular unflanged hoods and slots under suction

<?xml version="1.0" encoding="UTF-8"?><modsCollection xmlns="http://www.loc.gov/mods/v3" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-8.xsd">
<mods version="3.8">
<titleInfo>
<title>Centreline velocity characteristics of rectangular unflanged hoods and slots under suction</title>
</titleInfo>
<titleInfo type="alternative">
<title>The Annals of occupational hygiene</title>
</titleInfo>
<name type="personal" usage="primary" xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="MAPA20080043179">
<namePart>Fletcher, B.</namePart>
<nameIdentifier>MAPA20080043179</nameIdentifier>
</name>
<typeOfResource>text</typeOfResource>
<originInfo>
<place>
<placeTerm type="code" authority="marccountry">gbr</placeTerm>
</place>
<dateIssued encoding="marc">1977</dateIssued>
<issuance>serial</issuance>
</originInfo>
<language>
<languageTerm type="code" authority="iso639-2b">eng</languageTerm>
</language>
<physicalDescription>
<form authority="marcform">print</form>
<form authority="marccategory">microform</form>
</physicalDescription>
<abstract displayLabel="Summary">Measurements of centreline velocities in front of rectangular unflanged exhaust hoods, with areas between 25 and 900 cm2 and aspect ratios (ratio of slot length to its width) between 1:1 and 16:1 have shown that for a given face area and volume flow the velocity at a fixed point decreases as the aspect ratio increases. The present experiments show that design formulae previously used to predict these velocities are not valid over the range of aspect ratios usually claimed for them, and a new non-dimensionalized formula which takes account of aspect ratio is proposed</abstract>
<note type="statement of responsibility">B. Fletcher</note>
<subject authority="lcshac" xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="MAPA20080585679">
<topic>Higiene industrial</topic>
</subject>
<subject authority="lcshac" xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="MAPA20080605278">
<topic>Contaminantes químicos</topic>
</subject>
<subject authority="lcshac" xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="MAPA20080565954">
<topic>Humos tóxicos</topic>
</subject>
<subject authority="lcshac" xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="MAPA20080613655">
<topic>Control de contaminantes</topic>
</subject>
<subject authority="lcshac" xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="MAPA20080539566">
<topic>Polvo</topic>
</subject>
<subject authority="lcshac" xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="MAPA20080552923">
<topic>Velocidad</topic>
</subject>
<subject authority="lcshac" xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="MAPA20080537210">
<topic>Aire</topic>
</subject>
<subject authority="lcshac" xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="MAPA20080560997">
<topic>Ventilación</topic>
</subject>
<subject authority="lcshac" xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="MAPA20080612597">
<topic>Sistemas de ventilación</topic>
</subject>
<subject authority="lcshac" xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="MAPA20080566043">
<topic>Investigación</topic>
</subject>
<classification authority="">872</classification>
<relatedItem type="host">
<titleInfo>
<title>The Annals of occupational hygiene</title>
</titleInfo>
<originInfo>
<publisher>Oxford [etc.]</publisher>
</originInfo>
<part>
<text>nº 2, October 1977 ; p. 141-146</text>
</part>
</relatedItem>
<recordInfo>
<recordContentSource authority="marcorg">MAP</recordContentSource>
<recordCreationDate encoding="marc">940204</recordCreationDate>
<recordChangeDate encoding="iso8601">20080418114941.0</recordChangeDate>
<recordIdentifier source="MAP">MAP20071017154</recordIdentifier>
<languageOfCataloging>
<languageTerm type="code" authority="iso639-2b">spa</languageTerm>
</languageOfCataloging>
</recordInfo>
</mods>
</modsCollection>