- 이성분 나노유체에서의 암모니아 기포 흡수 성능 향상
- ㆍ 저자명
- 정준영,김진경,강용태,Jung. Jun Young,Kim. Jin-Kyeong,Kang. Yong Tae
- ㆍ 간행물명
- 설비공학논문집
- ㆍ 권/호정보
- 2005년|17권 4호|pp.312-317 (6 pages)
- ㆍ 발행정보
- 대한설비공학회
- ㆍ 파일정보
- 정기간행물| PDF텍스트
- ㆍ 주제분야
- 기타
The objectives of this paper are to study the absorption characteristics of $NH_3$ 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 $Al_{2}O_3$ and Cu particles are added to make the binary nanofluids into $NH_3/H_{2}O$ solution. The concentration of $NH_3$ solution ($x_s$), the concentration of surfactants ($x_{SA}$), and the mass fraction of nano-particles ($w_{np}$) are considered as key parameters. The experimented ranges of $x_s,;x_{SA},;and;w_{np}$ are $0{sim}17.92\%,;0{sim}1,500;ppm;and;0{sim}0.2\%$, 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.