The objectives of this paper are to examine the effect of nano particles on the bubble type absorption by experiment and to find the optimal conditions to design highly effective compact absorber for NH3/H2O absorption system. The initial concentrations of NH3/H2O solution and the kinds and the concentrations of nano particles are considered as key parameters. The results show that the addition of nano particles enhances the absorption performance up to 3.21 times. Moreover, the absorption rate increases with increasing concentration of nano particles and the nano particles are more effective for lower absorption potential solution. The potential enhancement mechanism for binary nanofluid is suggested. The experimental correlations of the effective absorption ratio for each nano particles, Cu, CuO, and Al2O3, are suggested within ±10% error-band.
Bibliographical noteFunding Information:
This work was supported by Korea Science and Engineering Foundation Grant (R01-2004-000-10736-0).
Copyright 2008 Elsevier B.V., All rights reserved.
- Absorption system
ASJC Scopus subject areas
- Building and Construction
- Mechanical Engineering