Nucleate pool boiling heat transfer characteristics of refrigerant/nanolubricant mixture with surfactant / Haitao Hu in International journal of refrigeration, Vol. 36 N° 3 (Mai 2013)  

Nucleate pool boiling heat transfer characteristics of refrigerant/nanolubricant mixture with surfactant = Caractéristiques du transfert de chaleur lors de l'ébullition libre nucléée d'un mélange frigorigène / nanolubrifiant contenant un agent tensio-actif [texte imprimé] / Haitao Hu, Auteur ; Peng, Hao, Auteur ; Guoliang Ding, Auteur . - 2013 . - pp. 1045–1055.
Refrigeration
Langues : Anglais (eng)
in International journal of refrigeration > Vol. 36 N° 3 (Mai 2013) . - pp. 1045–1055

Mots-clés :	Additive  Nucleate boiling  Lubricant  Particle  Refrigerant
Résumé :	The objective of this paper is to investigate the nucleate pool boiling heat transfer characteristics of refrigerant/nanolubricant mixture with surfactant. In the experiments, three types of surfactants including SDS, CTAB and Span-80 were used. Nanolubricant was formed from Cu nanoparticles and oil VG68. The results show that, the ratio of heat transfer coefficient of refrigerant/nanolubricant mixture with surfactant to that without surfactant (defined as surfactant impact factor, SIF) are within 0.85–1.58, 0.73–1.31, and 0.68–1.24 for SDS, CTAB and Span-80, respectively. The values of SIF increase with the increase of surfactant concentration and then decrease, and increase with the decrease of surfactant molecular weight, nanolubricant concentration and heat flux. A nucleate pool boiling heat transfer correlation for refrigerant/nanolubricant mixture was proposed, and it agrees well with the experimental data of refrigerant/nanolubricant mixture with surfactant and that without surfactant.
En ligne :	http://www.sciencedirect.com/science/article/pii/S0140700712003581