Al-Qadisiyah Journal for Engineering Sciences

Experimental study of heat transfer using nanofluids in a coiled agitated vessel equipped with impeller propeller

Document Type : Research Paper

Authors

Batool Shandal 1
H. Dawood 1
Helen Onyeaka 2

1 Department of Chemical Engineering College of Engineering, University of Al-Qadisiyah, Iraq

2 School of Chemical Engineering, University of Birmingham, Birmingham, UK

10.30772/qjes.2023.145214.1062
Abstract
In this study, the heat transfer enhancement was made by using multiwalled carbon nanotubes (MWCNTs) with distilled water (i.e . nanofluid) in a coiled agitated vessel. The thermal conductivity of the nanofluid at a volume fraction of (0.3 Vol%) was estimated with different parameters (temperature, propeller speed, flow rate, and time ultrasonication). The statistic program Minitab software 2019 by the method of Box–Behnken design (BBD) was used to identify the important and effective parameters of the process. The optimum parameters were found 55°C,300 rpm, 1 L/min, and time ultrasonication of 100 min with enhanced thermal conductivity of about 76.5%.

Keywords

Thermal conductivity
Nanofluids
MWCNT
Response Surface
Methodology
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Al-Qadisiyah Journal for Engineering Sciences
Volume 16, Issue 4
Autumn 2023
Pages 279-288

  • Receive Date 02 April 2023
  • Revise Date 15 August 2023
  • Accept Date 10 December 2023

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