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Coefficients de chute de pression pour plusieurs couples rapprochés.

Pressure loss coefficients for close-coupled pipe ells.

Auteurs : RAHMEYER W. J.

Résumé

Net pressure loss coefficients were studied for closely spaced or close-coupled pipe ells. The test fittings were all short radius (R/D: 5.08 cm) threaded malleable iron and 10.16 cm forged steel weld pipe ells. The ells were tested in the four close-coupled pipe configurations of a U shape of two ells in plane, a Z shape of two ells in plane, a torsional configuration of two ells out of plane, and a swing configuration of three ells out of plane. Data are presented. Findings concerning influence of fittings spacing, length/diameter ratios, or pressure losses for close-coupled pipe ells compared to the sum of pressure losses of the same pipes and fittings but uncoupled, are developed.

Détails

  • Titre original : Pressure loss coefficients for close-coupled pipe ells.
  • Identifiant de la fiche : 2003-0143
  • Langues : Anglais
  • Source : ASHRAE Transactions. 2002 Winter Meeting, Atlantic City, New Jersey. Volume 108, part 1 + CD-ROM.
  • Date d'édition : 2002
  • Document disponible en consultation à la bibliothèque du siège de l'IIF uniquement.

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