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An Easier calculation system for ventilation design

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      <subfield code="a">Guffey, Steven Eugene</subfield>
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      <subfield code="a">An Easier calculation system for ventilation design</subfield>
      <subfield code="c">Steven Eugene Guffey</subfield>
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      <subfield code="a">Many industrial hygienists attempting to learn ventilation design find the equivalent foot method confusing. The velocity pressure method is clear in concept, but to many students the velocity pressure method calculation sheets commonly a available are difficult to use. The author presents a modified velocity pressure calculation sheet and a simplified table for determining friction loss in straight ducts</subfield>
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      <subfield code="a">Ventilación industrial</subfield>
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      <subfield code="0">MAPA20080612597</subfield>
      <subfield code="a">Sistemas de ventilación</subfield>
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      <subfield code="a">Cálculo de estructuras</subfield>
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      <subfield code="a">Diseño estructural</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">[S.l.]</subfield>
      <subfield code="g">nº 44, September 1983 ; p. 627-630</subfield>
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