The Influence of the Preparation and Stability of Nanofluids for Heat Transfer

  • Noor Sabih Majeed Institute of Technology - Baghdad
  • Basma A. Abdulmajeed College of Engineering-University of Baghdad
  • Anwar Khudhur Yaseen Institute of Technology - Baghdad
Keywords: nanofluids, nanoparticles, SEM, stability.

Abstract

Recently the use of nanofluids represents very important materials. They are used in different branches like medicine, engineering, power, heat transfer, etc. The stability of nanofluids is an important factor to improve the performance of nanofluids with good results. In this research two types of nanoparticles, TiO2 (titanium oxide) and γ-Al2O3 (gamma aluminum oxide) were used with base fluid water. Two-step method were used to prepare the nanofluids. One concentration 0.003 vol. %, the nanoparticles were examined. Scanning Electron Microscopy (SEM), Atomic Force Microscopy (AFM) and X-ray diffraction (XRD) were used to accomplish these tests. The stability of the two types of nanofluids is measured by zeta potential and UV-vis spectrophotometer. The results showed that γ-Al2O3/water has more stable than TiO2/ water for the same period of time.

 

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Published
2019-04-01
How to Cite
Majeed, N., Abdulmajeed, B. and Yaseen, A. (2019) “The Influence of the Preparation and Stability of Nanofluids for Heat Transfer”, Journal of Engineering, 25(4), pp. 45-54. doi: 10.31026/j.eng.2019.04.04.