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Analyse de la perméabilité des structures à mèche fabriquées de manière additive avec applications aux échangeurs de chaleur.

Permeability analysis of additively-manufactured wick structures with heat exchanger applications.

Numéro : 2631

Auteurs : MORROW J., ESPINO MENDEZ C., DERBY M.

Résumé

Heat pipes and other heat transfer applications use capillary-driven liquid motion to enhance performance. This research uses water and a low surface tension fluid FC-40 to test additive-manufactured polymer wicks using a rate-of-rise test. The rate-of-rise tests give a measure of the wicks’ performance capabilities as well as being able to calculate the wicks’ permeability and effective pore radius. Four wicks were measured having two different internal structures (i.e., 1.0 mm triangle and 1.75 mm square) and two external structures (i.e., layered and column). The 1.0 mm Triangle wicks performed better than their 1.0 mm Square counterparts for both water and FC-40. Both 1.0 mm Triangle wicks performed similarly for both water and FC-40, with the column wick (11.0 mm) performing better than the layered wick (8.98 mm). Using a least squares method from the rate-of-rise results, the permeability and effective pore radius of each wick were calculated for the 1.0 mm triangle layered wick, the 1.75 mm square layered wick, and the 1.0 mm triangle column wick. The 1.75 mm square column wick was unable to wick either liquid, so the permeability and effective pore radius were not able to be calculated. The permeability and effective pore radius for each wick were 3.00 um2 and 130.1 um, 0.95 um2 and 221.1 um, and 77.8 um2 and 1099 um, respectively. Some challenges involved with polymer additive manufacturing design and creation were also discussed.

Documents disponibles

Format PDF

Pages : 9

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 : Permeability analysis of additively-manufactured wick structures with heat exchanger applications.
  • Identifiant de la fiche : 30028570
  • Langues : Anglais
  • Source : 2021 Purdue Conferences. 18th International Refrigeration and Air-Conditioning Conference at Purdue.
  • Date d'édition : 05/2021
  • Document disponible en consultation à la bibliothèque du siège de l'IIF uniquement.

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