Boiling Thermal Performance of TiO2 Aqueous NanoFluids as a Coolant on a Disc Copper Block

Authors

  • Elham Salari
    Affiliation
    IAU, Mahshahr Branch
  • Seyed Mohsen Peyghambarzadeh
    Affiliation
    IAU, Mahshahr Branch
  • Mohammad Mohsen Sarafraz
    Affiliation
    Faculty of Chemical, Petroleum and Gas Engineering, Semnan University, Semnan, Iran
  • Faramarz Hormozi
    Affiliation
    Faculty of Chemical, Petroleum and Gas Engineering, Semnan University, Semnan, Iran
https://doi.org/10.3311/PPch.8262

Abstract

This work focuses on potential application of nano-fluids in cooling of high heat flux surfaces. For this purpose, experimental studies have been performed to quantify the heat transfer coefficient of Titana (TiO2) aqueous nano-fluids under different operating conditions. Boiling mechanism is established on a disc copper made heater at different heat flux, mass concentration of nano-fluids and sub-cooling temperatures. Results demonstrated that heat transfer coefficient of Titana nano-fluids are relatively higher than that of the base fluid. Heat and mass concentration of nano-particles can intensify the pool boiling heat transfer coefficient, while sub-cooling temperature can only have impacts on bubble formation. Also, visual study demonstrates that fouling formation of nano-particles can intensify the bubble transport due to the intensification of nucleation sites in the boiling surface.

 

Keywords:

Pool Boiling, TiO2, Bubble formation, fouling, heat flux, nanofluid

Citation data from Crossref and Scopus

Published Online

2015-10-07

How to Cite

Salari, E., Peyghambarzadeh, S. M., Sarafraz, M. M., Hormozi, F. “Boiling Thermal Performance of TiO2 Aqueous NanoFluids as a Coolant on a Disc Copper Block”, Periodica Polytechnica Chemical Engineering, 60(2), pp. 106–122, 2016. https://doi.org/10.3311/PPch.8262

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Articles