A new setup for speed of sound measurements and experimental data for nanofluids Al2O3 or Ag with water or ethylene glycol

Publikation: Beitrag in FachzeitschriftArtikelForschungPeer-Review

Autoren

  • Divna M. Majstorović
  • Patrick Quindel
  • Emila M. Živković
  • Stephan Kabelac

Organisationseinheiten

Externe Organisationen

  • University of Belgrade
Forschungs-netzwerk anzeigen

Details

OriginalspracheEnglisch
Aufsatznummer122930
FachzeitschriftJournal of molecular liquids
Jahrgang389
Frühes Online-Datum25 Aug. 2023
PublikationsstatusVeröffentlicht - 1 Nov. 2023

Abstract

The speed of sound of four different nanofluids consisting of Ag or Al2O3 nanoparticles and water or ethylene glycol base fluid is measured in the temperature range (298.15–343.15) K and at atmospheric pressure. One aim of this analysis is to learn whether the change from pure base fluid speed of sound to the nanofluid situation is a smooth or disruptive transition when adding nanoparticles. The measurements were conducted on the newly proposed apparatus consisting mainly of function generator, ultrasonic sensor, switch, voltage source, oscilloscope, ultrasonic container and the necessary sensors and equipment for data acquisition. The values for speed of sound were calculated based on the Time of Flight method. Deionised water and ethanol were used to calibrate the apparatus which is additionally tested with pure base fluids water and ethylene glycol and showed excellent agreement with average absolute percentage deviations between experimental and literature data for speed of sound of 0.12% and 0.36%, respectively,. Beside the temperature influence, the influence of the nanoparticle concentration on the speed of sound of nanofluid were investigated and followed. The analysis of the sound velocity allows insight into the molecular level interactions taking place between the nanoparticles and the base fluid molecules of the nanofluid. The decrease in velocity values with the increase of concentration, noticeable in the tested nanofluids, is a result of decrease in nanoparticle-fluid interaction and dominance of particle–particle interaction.

ASJC Scopus Sachgebiete

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A new setup for speed of sound measurements and experimental data for nanofluids Al2O3 or Ag with water or ethylene glycol. / Majstorović, Divna M.; Quindel, Patrick; Živković, Emila M. et al.
in: Journal of molecular liquids, Jahrgang 389, 122930, 01.11.2023.

Publikation: Beitrag in FachzeitschriftArtikelForschungPeer-Review

Majstorović DM, Quindel P, Živković EM, Kabelac S. A new setup for speed of sound measurements and experimental data for nanofluids Al2O3 or Ag with water or ethylene glycol. Journal of molecular liquids. 2023 Nov 1;389:122930. Epub 2023 Aug 25. doi: 10.1016/j.molliq.2023.122930
Majstorović, Divna M. ; Quindel, Patrick ; Živković, Emila M. et al. / A new setup for speed of sound measurements and experimental data for nanofluids Al2O3 or Ag with water or ethylene glycol. in: Journal of molecular liquids. 2023 ; Jahrgang 389.
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abstract = "The speed of sound of four different nanofluids consisting of Ag or Al2O3 nanoparticles and water or ethylene glycol base fluid is measured in the temperature range (298.15–343.15) K and at atmospheric pressure. One aim of this analysis is to learn whether the change from pure base fluid speed of sound to the nanofluid situation is a smooth or disruptive transition when adding nanoparticles. The measurements were conducted on the newly proposed apparatus consisting mainly of function generator, ultrasonic sensor, switch, voltage source, oscilloscope, ultrasonic container and the necessary sensors and equipment for data acquisition. The values for speed of sound were calculated based on the Time of Flight method. Deionised water and ethanol were used to calibrate the apparatus which is additionally tested with pure base fluids water and ethylene glycol and showed excellent agreement with average absolute percentage deviations between experimental and literature data for speed of sound of 0.12% and 0.36%, respectively,. Beside the temperature influence, the influence of the nanoparticle concentration on the speed of sound of nanofluid were investigated and followed. The analysis of the sound velocity allows insight into the molecular level interactions taking place between the nanoparticles and the base fluid molecules of the nanofluid. The decrease in velocity values with the increase of concentration, noticeable in the tested nanofluids, is a result of decrease in nanoparticle-fluid interaction and dominance of particle–particle interaction.",
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N1 - Funding Information: The authors gratefully acknowledge the support received from the German Academic Exchange Service (DAAD) , Institute of Thermodynamics Leibniz University Hannover and the Ministry of Science , Technological Development and Innovation of the Republic of Serbia (Contract No. 451-03-47 / 2023-01 / 200135 ).

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