Open AccessCharacteristic of heat transfer nanofluid of Al2O3 improved by ZrO2 addition
Author(s) -
Dani Gustaman Syarif,
Jakaria Usman,
Yofi Ike Pratiwi,
Muhammad Yamin,
Arie Hardian
Publication year - 2021
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/882/1/012018
Subject(s) - nanofluid , materials science , crystallite , nanocomposite , heat transfer , coolant , chemical engineering , heat transfer coefficient , nanoparticle , hydrothermal circulation , zeta potential , particle size , hydrothermal synthesis , thermodynamics , nanotechnology , metallurgy , physics , engineering
Efforts to replace conventional fluids as coolants for heat transfers with new fluids are continuously being made to improve heat transfer efficiency. Nanofluids are currently widely studied around the world as candidates for conventional fluids substitutes. In this research, the synthesis of Al 2 O 3 -ZrO 2 nanocomposites for heat transfer nanofluid applications was carried out. The synthesis of the nanoparticles was conducted by the hydrothermal method. Here, we used ZrO 2 to improve the characteristics of Al 2 O 3 . The results of XRD analysis showed that the nanocomposite had an Al 2 O 3 gamma structure. The Al 2 O 3 nanoparticles and Al 2 O 3 -ZrO 2 nanocomposite have a crystallite size of 7.41 nm and 6.84 nm, respectively. The addition of 0.1 % ZrO 2 decreased the crystallite size and BET particle size and increased the zeta potential, hence the stability of the nanofluids. The increase of stability increased the heat transfer coefficient of the Al 2 O 3 nanofluids, making them suitable for heat transfer.