Effects of nanoparticles on nanofluid droplet evaporation

Journal Article · Wed Sep 01 00:00:00 EDT 2010 · International Journal of Heat and Mass Transfer

DOI:https://doi.org/10.1016/j.ijheatmasstransfer.2010.04.006· OSTI ID:1014772

Chen, Ruey-Hung ^[1]; Phuoc, Tran X. ^[2]; Martello, Donald ^[2]

---

1. Univ. of Central Florida, Orlando, FL (United States). Dept. of Mechanical, Materials and Aerospace Engineering
2. National Energy Technology Lab. (NETL), Pittsburgh, PA, (United States)

Laponite, Fe₂O₃ and Ag nanoparticles were added to deionized water to study their effect of evaporation rates. The results show that these nanofluid droplets evaporate at different rates (as indicated by the evaporation rate constant K in the well known D²-law) from the base fluid. Different particles lead to different values of K. As the particle concentration increases due to evaporation. K values of various Ag and Fe₂O₃ nanofluids go through a transition from one value to another, further demonstrating the effect of increasing nanoparticle concentration. The implication for the heat of vaporization (h_fg) is discussed.

• Research Organization: National Energy Technology Laboratory (NETL), Pittsburgh, PA, Morgantown, WV, and Albany, OR (United States)
• Sponsoring Organization: USDOE Assistant Secretary for Fossil Energy (FE)
• OSTI ID: 1014772
• Report Number(s): NETL-TPR-3238
• Journal Information: International Journal of Heat and Mass Transfer, Vol. 53, Issue 19-20; ISSN 0017-9310
• Publisher: Elsevier
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING