Numerical evaluation of nano-encapsulated PCM slurry as the heat transfer nanofluid

Muhammet Kaan Yeşilyurt

Numerical evaluation of nano-encapsulated PCM slurry as the heat transfer nanofluid

Abstract

This study investigates the flow and heat transfer properties of a water-based heat transfer fluid (ePCM-S) containing nano-encapsulated paraffin-based MF/LA (ePCM) using computational fluid dynamics (CFD) to improve cooling performance in thermal systems. The study compares the thermohydraulic behavior of pure water and 2% ePCM-S fluids at a constant heat flux of 850 W/m² and an inlet velocity of 0.012 m/s. The geometric model consists of a flat-channel serpentine absorber plate operating in the laminar regime. Fluid properties are modeled with temperature-dependent expressions for density, viscosity, thermal conductivity, and specific heat capacity. Phase change effects are integrated into the energy equations using user-defined functions (UDFs). The results show that the ePCM additive significantly improves the fluid's temperature distribution, reduces the maximum surface temperature compared to pure water, and increases the average Nusselt number. Although pressure drop increased due to increased viscosity, ePCM-S increased overall energy efficiency with a thermal enhancement factor (TEF > 1). In this context, it was concluded that water-ePCM slurry with 2% ePCM added offers high heat storage capacity with low pumping power requirements, and therefore can be considered an efficient and sustainable heat transfer fluid for PVT systems.

Keywords

References

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Details

Primary Language

English

Subjects

Micro and Nanosystems

Journal Section

Research Article

Authors

Muhammet Kaan Yeşilyurt ^*
0000-0002-7207-1743
Türkiye

Publication Date

December 31, 2025

Submission Date

November 7, 2025

Acceptance Date

December 19, 2025

Published in Issue

Year 2025 Volume: 5 Number: 2

IZ

https://izlik.org/JA69FM46MZ

Cite

RIS / Bibtex

APA

Yeşilyurt, M. K. (2025). Numerical evaluation of nano-encapsulated PCM slurry as the heat transfer nanofluid. NanoEra, 5(2), 55-66. https://izlik.org/JA69FM46MZ

AMA

1.Yeşilyurt MK. Numerical evaluation of nano-encapsulated PCM slurry as the heat transfer nanofluid. NanoEra. 2025;5(2):55-66. https://izlik.org/JA69FM46MZ

Chicago

Yeşilyurt, Muhammet Kaan. 2025. “Numerical Evaluation of Nano-Encapsulated PCM Slurry As the Heat Transfer Nanofluid”. NanoEra 5 (2): 55-66. https://izlik.org/JA69FM46MZ.

EndNote

Yeşilyurt MK (December 1, 2025) Numerical evaluation of nano-encapsulated PCM slurry as the heat transfer nanofluid. NanoEra 5 2 55–66.

IEEE

[1]M. K. Yeşilyurt, “Numerical evaluation of nano-encapsulated PCM slurry as the heat transfer nanofluid”, NanoEra, vol. 5, no. 2, pp. 55–66, Dec. 2025, [Online]. Available: https://izlik.org/JA69FM46MZ

ISNAD

Yeşilyurt, Muhammet Kaan. “Numerical Evaluation of Nano-Encapsulated PCM Slurry As the Heat Transfer Nanofluid”. NanoEra 5/2 (December 1, 2025): 55-66. https://izlik.org/JA69FM46MZ.

JAMA

1.Yeşilyurt MK. Numerical evaluation of nano-encapsulated PCM slurry as the heat transfer nanofluid. NanoEra. 2025;5:55–66.

MLA

Yeşilyurt, Muhammet Kaan. “Numerical Evaluation of Nano-Encapsulated PCM Slurry As the Heat Transfer Nanofluid”. NanoEra, vol. 5, no. 2, Dec. 2025, pp. 55-66, https://izlik.org/JA69FM46MZ.

Vancouver

1.Muhammet Kaan Yeşilyurt. Numerical evaluation of nano-encapsulated PCM slurry as the heat transfer nanofluid. NanoEra [Internet]. 2025 Dec. 1;5(2):55-66. Available from: https://izlik.org/JA69FM46MZ