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Amélioration de la performance d'un échangeur de chaleur à tubes ronds et à ailettes persiennées utilisant le refroidissement par pulvérisation abondante d'eau.

Enhancement of round tube-louver fin heat exchanger performance using deluge water cooling.

Numéro : pap. 2331

Auteurs : POPLI S., HWANG Y., RADERMACHER R.

Résumé

An experimental study has been conducted to evaluate the performance of a compact round-tube louver-fin condenser, each with frontal areas of 0.25 m2 in both dry and wet conditions. Deluge water cooling is achieved by incorporating a perforated bottom plate-type water distributor on top of the round tube heat exchanger. Water is used as a refrigerant, and enters the heat exchanger tubes at 35 °C temperature. Ambient air and deluge cooling water are both maintained at 22 °C temperature. Heat exchanger capacity and air-side pressure drop are measured with the heat exchanger angle set at 0° and 21° from vertical, with a frontal air velocity of 1.4 m/s and 3.5 m/s without deluge water cooling, and a frontal air velocity of 1.4 m/s with deluge water cooling. For both heat exchangers, the capacity was significantly enhanced with the use of deluge water cooling and with the heat exchanger angle set at 21° from vertical.

Documents disponibles

Format PDF

Pages : 10 p.

Disponible

  • Prix public

    20 €

  • Prix membre*

    15 €

* meilleur tarif applicable selon le type d'adhésion (voir le détail des avantages des adhésions individuelles et collectives)

Détails

  • Titre original : Enhancement of round tube-louver fin heat exchanger performance using deluge water cooling.
  • Identifiant de la fiche : 30006441
  • Langues : Anglais
  • Source : 2012 Purdue Conferences. 14th International Refrigeration and Air-Conditioning Conference at Purdue.
  • Date d'édition : 16/07/2012

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