| Titre : | The effects of nanoparticles on absorption heat and mass transfer performance in NH3/H2O binary nanofluids (2011) |
| Titre original : | Titre Les effets des nanoparticules sur le transfert de chaleur et de masse lors de l’absorption des nanofluides binaires au NH3/H2O |
| Auteurs : | Jin Ki Lee, Auteur ; Junemo Koo, Auteur ; Hiki Hong, Auteur |
| Type de document : | Article : texte imprimé |
| Dans : | International journal of refrigeration (Vol. 33 N° 2, Mars 2010) |
| Article en page(s) : | pp. 269-275 |
| Note générale : | Génie Mécanique |
| Langues : | Anglais |
| Index. décimale : | 621.5 (Energie pneumatique. Machinerie et outils. Réfrigération) |
| Tags : | Absorption system Ammonia-water Experiment Additive Aqueous solution Particle Oxide Aluminium Nanotube Mass transfer Heat |
| Résumé : | The objectives of this paper are to examine the effect of nanoparticles on the pool type absorption heat transfer enhancement and to find the optimal conditions to design a highly effective compact absorber for NH3/H2O absorption system. The binary nanofluids which mean binary mixture with nano-sized particles are tested to apply nanofluids to the absorption system. Al2O3 and carbon nanotube (CNT) particles are added to make the binary nanofluids in the binary mixture of NH3/H2O. The effect of Al2O3 nanoparticles and CNT on the absorption performance is studied experimentally. The experimental ranges of the key parameters are 20% of NH3 concentration, 0–0.08 vol% (volume fraction) of CNT particles, and 0–0.06 vol% of Al2O3 nanoparticles. For the NH3/H2O nanofluids, the heat transfer rate and absorption rate with 0.02 vol% Al2O3 nanoparticles were found to be 29% and 18% higher than those without nanoparticles, respectively. It is recommended that the concentration of 0.02 vol% of Al2O3 nanoparticles be the best candidate for NH3/H2O absorption performance enhancement in the present conditions. It is expected that this study will give some basic idea to understand the heat and mass transfer enhancement mechanism in multi-components nanofluids. |
| DEWEY : | 621.5 |
| ISSN : | 0140-7007 |
| En ligne : | http://www.sciencedirect.com/science/article/pii/S0140700709002382 |
