Thermal assessment of cold storage process involving nanomaterial via numerical approach DOI Creative Commons
Mohammed A. Tashkandi, Ali Basem, Hussein A.Z. AL-bonsrulah

et al.

Case Studies in Thermal Engineering, Journal Year: 2024, Volume and Issue: 60, P. 104805 - 104805

Published: July 14, 2024

The primary aim of this study is to extend a numerical approach aimed at improving the efficiency solidification process. Two key strategies, namely scattering nano-powders and installation fins, were employed intensify freezing. By approximating neglecting influence velocity terms, final equations streamlined form mathematical model. To enhance accuracy, mesh adaptation was integrated with Galerkin method for solving Various scenarios examined assess impression both shape concentration on A significant correlation observed between additives conduction, causing in decrement required time by approximately 32.8 %. Furthermore, modifying selecting those higher factor substantially improved freezing efficiency, resulting an increase 10.89

Language: Английский

Numerical assessment of solar panel with utilizing ferrofluid flow within wavy duct equipped with V-shaped fins DOI Creative Commons
Mohammed A. Tashkandi, Ali Basem, Hussein A.Z. AL-bonsrulah

et al.

Case Studies in Thermal Engineering, Journal Year: 2025, Volume and Issue: unknown, P. 105800 - 105800

Published: Jan. 1, 2025

Language: Английский

Citations

4

Assessment Improvement of Heat Performance and Hydraulic Thermal Flow in a Three‐Dimensional Tube Equipped With Different Turbulator Corrugated Arrangements DOI Open Access
Saad Raad Al‐Haidari, Ahmed Ramadhan Al‐Obaidi

Heat Transfer, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 19, 2025

ABSTRACT Corrugated pipe is used in many engineering applications because of its high performance compared with smooth pipe. This research involved numerical simulations and experimental testing a circular tube modified flow path to improve the heat transfer exchangers. The focus was on enhancing mixing creating vortex flows within increase exchange efficiency. impact seven design factors, including ring diameters (RD) pitch between pitches (RP), thermal–hydraulic investigated. Water as working fluid regime ranges from 4000 15,000, indicating turbulent flow. A constant flux 25,500 W/m 2 applied, water enters system at temperature 298 K (25°C). properties are assumed remain throughout conditions, such steady state (the conditions do not change time), incompressible density remains constant), no‐slip condition velocity surface any solid boundary zero). tubes consistently outperformed due increased separation. Both increasing Reynolds number decreasing factors led formation patterns. In RD configurations, Nusselt saw an average improvement approximately 45.6%, while friction factor 19% 57%. RP configurations demonstrated broader range enhancements, reaching up 35%, increases ranging 15% 42%. Rings can significantly enhance tubes. However, best configuration depends specific application. highest performance, resulting 1.38 evaluation factor, obtained using 1 mm 20 mm. simulated data showed excellent agreement, maximum discrepancy less than 11% for both dimpled

Language: Английский

Citations

4

Dynamic numerical modeling and performance assessment of a hybrid photovoltaic thermal collector adsorption desalination system for sustainable water-energy nexus DOI
Mohamed Ghazy, Mohamed E. Zayed, Shafiqur Rehman

et al.

Solar Energy, Journal Year: 2025, Volume and Issue: 292, P. 113441 - 113441

Published: March 30, 2025

Language: Английский

Citations

2

Heat transfer during discharging of NEPCM through the finned container DOI Creative Commons
Adel Almarashi, Nadia A. Askar, Hussein A.Z. AL-bonsrulah

et al.

Case Studies in Thermal Engineering, Journal Year: 2024, Volume and Issue: 57, P. 104287 - 104287

Published: March 24, 2024

To maximize the efficiency of freezing, combinations using nanoparticles and fins have been utilized in current work. Incorporating nanofluids into solidification processes provides a refined efficient approach to transitioning materials from liquid solid state. Triangular container involving has implemented. The shape fraction were varied this research. derived equations solved via finite element method associated code validated based on prior article. reduction freezing time was presumed as main goal research resource utilization various industries. As greater amount nano-powders is utilized, conduction becomes stronger rate improves about 27%. Also, altering particles applying powders with bigger m can lead by 7%.

Language: Английский

Citations

17

Effect of loading Fe3O4 nanoparticles on electrical performance of solar panel utilizing numerical modeling DOI Creative Commons
Adel Almarashi,

Debo Mohammed Alrahal,

Hussein A.Z. AL-bonsrulah

et al.

Case Studies in Thermal Engineering, Journal Year: 2024, Volume and Issue: 55, P. 104165 - 104165

Published: Feb. 22, 2024

The present study investigates the enhancement of PVT system efficiency through application magnetic force. Dust deposition affects glass layer PV, altering magnitude heat sources. addition a thermoelectric layer, attached to silicon using EVA, allows for increased electrical output. A rhombus-shaped duct is filled with homogeneous mixture H2O and Fe3O4 nanomaterial serving as ferrofluid. dust over results in decline useful by approximately 10.11%, leading 25.36% productivity. imposition MHD increases thermal performance 8.9%, can be enhanced 1.8%. dispersion nanoparticles contributes cooler this positive impact being three times greater absence MHD. Additionally, an increase inlet velocity 8.22% improvement performance.

Language: Английский

Citations

16

Evaluation of hydraulic thermal flow and heat performance augmentation in a 3D tube fitted with varying concavity dimple turbulator configurations DOI
Saad Raad Al‐Haidari, Ahmed Ramadhan Al‐Obaidi

Heat Transfer, Journal Year: 2024, Volume and Issue: 54(1), P. 420 - 459

Published: Sept. 13, 2024

Abstract Enhanced pipe surfaces offer greater heat transfer enhancement due to increased turbulence levels, leading improved exchange performance. This study combines numerical simulations and experimental work identify the best geometric design of enhanced tubes for thermal–hydraulic performance, flow structure, pressure drop, are validated with data. Water is a working fluid Reynolds numbers ranging from 4000 15,000, q = 25,500 W/m 2 , an inlet temperature 298 K constant property, steady state, no‐slip condition. The three‐dimensional incompressible turbulent in concavity dimpled shape‐enhanced numerically studied. research found that pipes concave shape most effectively. overall significantly influenced by dimples, their arrangement rings, size these number rings. However, cylindrical dimples does not seem impact much. increase performance was 9.8%–61% dimple rings 2ring performed compared smooth 8.21%–38.49% at effect ring as grouping, also diameters 5%–38% 7%–39% numbers. evaluation factor (PEF) assesses considering both drop penalty transfer. optimal configuration achieving highest (PEF 1.295) rate ( Re ) involves single 2‐mm diameter, spaced 10‐mm apart, containing four dimples. Furthermore, discussing different parameters thermal hydraulic performances obtain increasing gives better guide engineering thermohydraulic exchangers.

Language: Английский

Citations

14

Evaluation of thermal storage system during freezing and loading nano-powders DOI Creative Commons

Bandar Almohsen

Journal of Thermal Analysis and Calorimetry, Journal Year: 2024, Volume and Issue: 149(11), P. 5595 - 5609

Published: May 27, 2024

Abstract In pursuit of advancing the efficiency cold energy storage, a uniquely designed curved container has been employed, filled with water-nanoparticle mixtureQ. The is equipped fins, strategically leveraging enhanced conduction facilitated by presence nanoparticles. simulation intricate unsteady phenomena in this study conducted using finite element technique, providing robust analytical framework. incorporation an adaptive grid ensures refined resolution, particularly vicinity ice front region. nanoparticle fraction ( ϕ ) emerges as pivotal factor directly influencing rate solidifying. dispersion nano-powders leads to noteworthy reduction completion time, demonstrating substantial 33.21% improvement. diameter (dp) introduces diverse effects on solidification process, primarily due its significant influence conductivity nanomaterial. An in-depth exploration impact dp reveals compelling insights. As increases from smallest size 40 nm, there commendable 15.12% required freezing time. However, subsequent increment beyond threshold results notable 36.56% increase findings presented here not only contribute fundamental understanding processes but also hold practical implications for design and optimization storage systems.

Language: Английский

Citations

13

Effects of cooler shape and position on solidification of phase change material in a cavity DOI
Hakan F. Öztop, Burak Kıyak, Nirmalendu Biswas

et al.

Journal of the Taiwan Institute of Chemical Engineers, Journal Year: 2024, Volume and Issue: 163, P. 105628 - 105628

Published: June 28, 2024

Language: Английский

Citations

13

Comparative study on productivity of double slope solar still using different wick and energy storage materials DOI

P. Anburaj,

Murugavel Kathiresan, Vijayakumar Rajendran

et al.

Solar Energy, Journal Year: 2024, Volume and Issue: 282, P. 112959 - 112959

Published: Sept. 23, 2024

Language: Английский

Citations

12

Freezing process modeling within a cold storage tank with implement of nanoparticles DOI
Yahya Ali Rothan

Journal of Energy Storage, Journal Year: 2024, Volume and Issue: 88, P. 111501 - 111501

Published: April 18, 2024

Language: Английский

Citations

11