| Titre : | Nucleate pool boiling heat transfer characteristics of refrigerant/nanolubricant mixture with surfactant (2013) |
| Titre original : | Caractéristiques du transfert de chaleur lors de l'ébullition libre nucléée d'un mélange frigorigène / nanolubrifiant contenant un agent tensio-actif |
| Auteurs : | Haitao Hu, Auteur ; Peng, Hao, Auteur ; Guoliang Ding, Auteur |
| Type de document : | Article : texte imprimé |
| Dans : | International journal of refrigeration (Vol. 36 N° 3, Mai 2013) |
| Article en page(s) : | pp. 1045–1055 |
| Note générale : | Refrigeration |
| Langues : | Anglais |
| Tags : | 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 |
