Nanofluids with Enhanced CHF Prepared from Solgel Synthesized Al2O3 Nanoparticles Utilizing Urea as Chelating Agent
Dani Gustaman Syarif, Djoko Hadi Prajitno, Jupiter Sitorus Pane
Dani Gustaman Syarif
Available Online December 2018.
- https://doi.org/10.2991/icst-18.2018.163How to use a DOI?
- Nanoparticles, Al2O3, solgel, urea, nanofluids, CHF.
- In order to develop a new coolant for nuclear and non-nuclear applications, nanoparticles of Al2O3 for nanofluids have been successfully synthesized by solgel method utilizing AlCl3 as precursor and urea as chelating agent. The mole ratio of the AlCl3 and urea was 1:2. The solution was stirred to form a sol and then was heated at 150oC until forming a gel. The gel was then calcined at 500oC for 1 hour to get Al2O3 nanoparticles. Nanofluids of Al2O3 were prepared by dispersing the Al2O3 nanoparticles into water as base fluid. The synthesized Al2O3 nanoparticles crystallized in gamma phase with crystallite size of 3.4 nm as confirmed by the XRD analyses. Specific surface area of the nanoparticles was 251 m2/g with dBET of 6 nm. As confirmed by TEM analyses, the particle size of the nanoparticles was 35 nm. The nanofluid with concentration of 0.05 vol % and pH of 7.42 possessed zeta potential of 53 mV, indicating a stable suspension. This nanofluid had a CHF enhancement of 92% compared to water as base fluid.
- Open Access
- This is an open access article distributed under the CC BY-NC license.
Cite this article
TY - CONF AU - Dani Gustaman Syarif AU - Djoko Hadi Prajitno AU - Jupiter Sitorus Pane PY - 2018/12 DA - 2018/12 TI - Nanofluids with Enhanced CHF Prepared from Solgel Synthesized Al2O3 Nanoparticles Utilizing Urea as Chelating Agent BT - Proceedings of the International Conference on Science and Technology (ICST 2018) PB - Atlantis Press SP - 801 EP - 804 SN - 2589-4943 UR - https://doi.org/10.2991/icst-18.2018.163 DO - https://doi.org/10.2991/icst-18.2018.163 ID - Syarif2018/12 ER -