Title :
The Effect of Al2O3 Nanoparticles on the NH3/H2O Bubble Absorption Performance in Binary Nanofluids
Author :
Pang, Changwei ; Wu, Weidong ; Wu, Runyu ; Chen, Shengxiang
Author_Institution :
Univ. of Shanghai for Sci. & Technol., Shanghai, China
Abstract :
The objective of this paper is to study the effect of Al2O3 nanoparticles on the absorption performance in NH3/H20 bubble absorption process. The Al2O3 nanofluids with good dispersion stability within the nanoparticle mass fraction range of 0.2%~1.0% are prepared. The result shows that, in the ammonia concentration range of 0%~20%, the effective absorption ratio in all case with Al2O3 nanoparticles is higher than 1.0 and rises with the initial ammonia concentration increasing. When the initial ammonia concentration is 20% and the Al2O3 nanoparticle mass fraction is 0.5%, the effective absorption ratio can reach the maximum 2.017, which indicates that the Al2O3 nanoparticles has a significant effect on the bubble absorption performance of ammonia with higher initial concentration, and its possible mechanism is briefly analysed.
Keywords :
alumina; ammonia; bubbles; disperse systems; nanofluidics; nanoparticles; two-phase flow; water; Al2O3; NH3-H2O; NH3-H2O bubble absorption performance; ammonia concentration; binary nanofluids; dispersion stability; mass fraction; nanoparticles; Absorption; Aluminum oxide; Films; Heat transfer; Nanoparticles; Temperature sensors; Water; Al2O3; Ammonia; Bubble Absorption; Nanofluids;
Conference_Titel :
Computer Distributed Control and Intelligent Environmental Monitoring (CDCIEM), 2011 International Conference on
Conference_Location :
Changsha
Print_ISBN :
978-1-61284-278-3
Electronic_ISBN :
978-0-7695-4350-5
DOI :
10.1109/CDCIEM.2011.163
