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Document IIF

Coefficients expérimentaux de transfert de chaleur en ébullition libre d’ammoniac sur deux tubes en acier au carbone à double renforcement.

Experimental pool boiling heat transfer coefficients of ammonia on two dual-enhanced carbon steel tubes.

Numéro : pap. 1389

Auteurs : PRADO J. I., FERNÁNDEZ-SEARA J., VALLEJO J. P., et al.

Résumé

Pool boiling on the external surface of the tubes is a complex process for theoretical analysis, so in many occasions the boiling heat transfer coefficients (HTCs) need to be experimentally determined. Carbon steel tubes are commonly employed in shell-and-tube heat exchangers when ammonia is used as refrigerant, due to their compatibility. This work reports the experimental determination of the ammonia pool boiling HTCs on two dual-enhanced carbon steel tubes of 18.8 mm diameter at saturation temperatures of 10 °C and 0 °C. Experimental facility and data acquisition system are described, experimental procedure is explained, data reduction methodology is detailed, and experimental results are presented and discussed.

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Pages : 8

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Détails

  • Titre original : Experimental pool boiling heat transfer coefficients of ammonia on two dual-enhanced carbon steel tubes.
  • Identifiant de la fiche : 30023711
  • Langues : Anglais
  • Source : 13th IIR Gustav Lorentzen Conference on Natural Refrigerants (GL2018). Proceedings. Valencia, Spain, June 18-20th 2018.
  • Date d'édition : 18/06/2018
  • DOI : http://dx.doi.org/10.18462/iir.gl.2018.1389

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