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Caractéristiques du transfert de chaleur en simple phase et de la perte de charge dans des tubes à micro ailettes pourvus d'inserts constitués de fil torsadé.

Charakterystyki wymiany ciepla i spdku cisniena przy jednofazowym przeplywie w mikro-ozebrowanych rurach z wkladka ze zwinietego drutu.

Auteurs : ZAWADZKI A., KAPUSTA T., PLOCEK M., et al.

Type d'article : Article

Résumé

The heat transfer characteristics and the pressure drop of the horizontal micro-fin tubes with and without coiled wire insert were investigated. The inner and outer diameters of the micro-fin pipe were 11.34 and 12.00 mm, respectively. The coiled wire was fabricated by bending a 1 mm diameter steel wire into the coil. Cold and hot water were used as working fluids in shell side and tube side, respectively. The test runs were performed at cold and hot water volumetric flow rates 1.2 m3/h and ranging between 0.06 and 1.5 m3/h, respectively. The inlet cold and hot water temperatures were 20°C and between 30 and 50°C, respectively. The obtained results were compared with those obtained from smooth and micro-fin tubes.

Détails

  • Titre original : Charakterystyki wymiany ciepla i spdku cisniena przy jednofazowym przeplywie w mikro-ozebrowanych rurach z wkladka ze zwinietego drutu.
  • Identifiant de la fiche : 2010-1089
  • Langues : Polonais
  • Source : Chlodnictwo - vol. 45 - n. 1-2
  • Date d'édition : 01/2010
  • Document disponible en consultation à la bibliothèque du siège de l'IIF uniquement.

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