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Modeling existing ventilation systems using measured values

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      <subfield code="a">Guffey, Steven Eugene</subfield>
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      <subfield code="a">Modeling existing ventilation systems using measured values</subfield>
      <subfield code="c">Steven E. Guffey</subfield>
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      <subfield code="a">Equations are derived to model installed exhaust ventilation systems using measured diameters, flows, and pressures. The system of equations does not require knowledge of system components or their loss coefficients except for those components that will be replaced. The modeling procedure is demonstrated for an example problem in which observed values are created for initial and final conditions from velocity pressure loss coefficients</subfield>
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      <subfield code="0">MAPA20080616441</subfield>
      <subfield code="a">Contaminación atmosférica</subfield>
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    <datafield tag="650" ind1="1" ind2="1">
      <subfield code="0">MAPA20080560997</subfield>
      <subfield code="a">Ventilación</subfield>
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    <datafield tag="650" ind1="1" ind2="1">
      <subfield code="0">MAPA20080612597</subfield>
      <subfield code="a">Sistemas de ventilación</subfield>
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      <subfield code="0">MAPA20080592042</subfield>
      <subfield code="a">Modelos matemáticos</subfield>
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      <subfield code="a">American Industrial Hygiene Association journal</subfield>
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      <subfield code="t">American Industrial Hygiene Association journal</subfield>
      <subfield code="d">Fairfax, Virginia</subfield>
      <subfield code="g">Vol. 54, nº 6, June 1993 ; p. 293-306</subfield>
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