| Title |
Enhancement of NH3 Bubble Absorption Performance in Binary Nanofluids |
| Keywords |
Bubble absorption ; 기포흡수 ; NH3/H2O ; 암모니아/물 ; Surfactant ; 계면활성제 ; Nanoparticle ; 나노입자 ; Absorption rate ; 흡수율 |
| Abstract |
The objectives of this paper are to study the absorption characteristics of NH3 bubbles in the binary nanofluids and to quantify the effects of surfactants and nano-particles on the bubble absorption performance. 2-Ethyl-1-Hexanol, n-Octanol, and 2-Octanol are used as the surfactants and nano-sized Al2O3 and Cu particles are added to make the binary nano-fluids into NH3/H2O solution. The concentration of NH3 solution, the concentration of surfactants, and the mass fraction of nano-particles are considered as key parameters. The experimented ranges of,, and are 0～17.92%, 0～1,500ppm and 0～0.2%, respectively. The absorption rates are calculated by measuring initial and final weights of test section and exposed time. In addition, the bubble absorption processes are visualized using the shadow graphic method. The results show that the absorption performance is significantly enhanced up to 4 times by adding the surfactants and up to 3 times in the binary nanofluids. |