Al-Qadisiyah Journal for Engineering Sciences

Experimental investigation of heat transfer in a cavity filled with (50% CuO-50% Al2O3)/Water with hybrid nanofluid attached to a vertically heated wall partially integrated with PCM

Document Type : Research Paper

Authors

Muqdad Al-Maliki 1
Khaled Al-Farhany 2

1 Department of Mechanical Engineering, Collage of Engineering, University of Al-Qadisiyah, Al-Diwaniyah, Iraq

2 Department of Mechanical Engineering, University of Al-Qadisiyah, Ad-Diwaniyah, 58001, Iraq

https://doi.org/10.30772/qjes.v16i1.912
Abstract
An empirical evaluation of free convective heat transmission was conducted in a rectangular enclosure containing a hybrid nanofluid of (50% CuO-50% Al2O3)/water linked to a PCM-containing wall. The enclosure's left and right surfaces were kept at constant warm and cold temperatures, whereas the remaining surfaces were assumed to be isolated. The left side was filled partially with PCM. Several variables were examined, such as the hot-side temperature differential (∆T =10, 15,20 ◦C) and the hybrid nanofluid concentration (Φ=0.03,0.05,0.07)%. The findings show that the rate of heat transmission through natural convection rises as the concentration of nanomaterials rises. Due to its great absorbability and heat storage capacity, PCM was also shown to have the potential to lower the hot side temperature by up to 15.5%. The Nusselt number rises over time as the left cavity is filled partially with PCM. When added hybrid nanofluid is, PCM’s heat-storage efficiency and, by extension, its ability to cool the hot side is greatly improved.

Keywords

(50% CuO
50% Al2O3)/Water Hybrid nanofluid Natural convection PCM Rectangular Cavity
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Al-Qadisiyah Journal for Engineering Sciences
Volume 16, Issue 1
Winter 2023
Pages 21-29

  • Receive Date 03 September 2022
  • Revise Date 08 October 2022
  • Accept Date 07 February 2023

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