Binary nanoemulsion as a refrigerant of diffusion absorption refrigeration.
Numéro : pap. n. 64
Auteurs : LEE K. R., LEE J. K., KANG Y. T.
Résumé
Nanofluid is defined as stable suspensions of highly conductive nanoparticles in a base fluid. Binary nano emulsion is defined as the nano emulsion of which base fluid is a binary mixture such as NH3/H2O solution. The added nanoparticles in the base fluid should be stably dispersed to obtain better thermo-physical properties. The research for using these characteristics of nanoparticles has been extensively studied and is still in progress. The objectives of this paper are to estimate the effect of nano-sized oil droplets on the performance of a diffusion absorption refrigerator (DAR) and to find the relationship between the dispersion stability and COP enhancement of the DAR system. The concentration and ratio of oil and surfactants are considered as the key parameters. N-decane oil is added into NH3/H2O solution to make the binary nano emulsions, and C12E4 (Polyoxyethylene lauryl ether) and TWEEN20 (Polyoxyethylen sorbitan monolaurate, C58H114O26) are used as the surfactants for stable dispersion. The dispersion stability of binary nano emulsions is evaluated by the droplet size measurement and Tyndall effect analysis. It is found that the binary nano emulsion fluid increases the COP of the DAR system as high as 15% compared with that of the base fluid refrigerator. Also, it is found that a strong relationship between the dispersion stability and the heat and mass transfer performance should be existed.
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Détails
- Titre original : Binary nanoemulsion as a refrigerant of diffusion absorption refrigeration.
- Identifiant de la fiche : 30014358
- Langues : Anglais
- Source : International sorption heat pump conference (ISHPC2014), College Park, United States, March 31-April 2, 2014.
- Date d'édition : 02/03/2014
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Indexation
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MASS DIFFUSION IN THE PROCESS OF AMMONIA VAPOUR...
- Auteurs : KASHIWAGI T., OKAJIMA J.
- Date : 24/08/1987
- Langues : Anglais
- Source : Development in refrigeration, refrigeration for development. Proceedings of the XVIIth international Congress of Refrigeration.
- Formats : PDF
Voir la fiche
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The effect of oil-droplet on bubble absorption ...
- Auteurs : KIM Y. J., LEE J. K., KANG Y. T.
- Date : 12/2011
- Langues : Anglais
- Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 34 - n. 8
- Formats : PDF
Voir la fiche
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Thermal conductivity measurement of oil in Wate...
- Auteurs : SUL H. Y., HONG H., KANG Y. T.
- Date : 09/2011
- Langues : Anglais
- Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 34 - n. 6
- Formats : PDF
Voir la fiche
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Mass transfer enhancement by binary nanofluids ...
- Auteurs : PANG C., SHENG W., et al., WU W.
- Date : 12/2012
- Langues : Anglais
- Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 35 - n. 8
- Formats : PDF
Voir la fiche
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MASS DIFFUSION IN THE ABSORPTION OF AMMONIA VAP...
- Auteurs : KASHIWAGI T.
- Date : 24/08/1987
- Langues : Anglais
- Source : Development in refrigeration, refrigeration for development. Proceedings of the XVIIth international Congress of Refrigeration.
- Formats : PDF
Voir la fiche