나노입자 크기에 따른 나노유체 액적의 증발 열전달 특성Influence of Particle Size on Evaporation Heat Transfer Characteristics of Nanofluid Droplet
- Authors
- 이형주; 김대윤; 이성혁
- Issue Date
- 2017
- Publisher
- 한국액체미립화학회
- Keywords
- 나노입자; 나노유체; 액적; 증발; 열전달; Nanoparticle; Nanofluid; Droplet; Evaporation; Heat transfer
- Citation
- 한국액체미립화 학회지, v.22, no.1, pp 36 - 41
- Pages
- 6
- Journal Title
- 한국액체미립화 학회지
- Volume
- 22
- Number
- 1
- Start Page
- 36
- End Page
- 41
- URI
- https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/5897
- DOI
- 10.15435/JILASSKR.2017.22.1.36
- ISSN
- 1226-2277
- Abstract
- The present study investigates the evaporation heat transfer characteristics of nanofluid droplet for different nanoparticle sizes. Also, the heat transfer coefficient was measured at different nanoparticle concentrations during evaporation. From the experimental results, it is found that the evaporation behavior of sessile droplet can be considered as constant radius mode due to pinning effect. The total evaporation time of sessile droplet decreases with nanoparticle size up to 7.9% for 0.10 vol% nanofluid droplet. As nanoparticle concentration increases, the clear difference in heat transfer coefficient is observed, showing that the size effect should be examined. This result would be helpful in designing the correlation between the nanoparticle size and the heat transfer characteristics for various applications.
The present study investigates the evaporation heat transfer characteristics of nanofluid droplet for different nanoparticle sizes. Also, the heat transfer coefficient was measured at different nanoparticle concentrations during evaporation. From the experimental results, it is found that the evaporation behavior of sessile droplet can be considered as constant radius mode due to pinning effect. The total evaporation time of sessile droplet decreases with nanoparticle size up to 7.9% for 0.10 vol% nanofluid droplet. As nanoparticle concentration increases, the clear difference in heat transfer coefficient is observed, showing that the size effect should be examined. This result would be helpful in designing the correlation between the nanoparticle size and the heat transfer characteristics for various applications.
- Files in This Item
- There are no files associated with this item.
- Appears in
Collections - College of Engineering > School of Mechanical Engineering > 1. Journal Articles
![qrcode](https://api.qrserver.com/v1/create-qr-code/?size=55x55&data=https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/5897)
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.