Analyzing porous cold storage unit in presence of hybrid nano-powders considering Galerkin method

Case Studies in Thermal Engineering, Journal Year: 2024, Volume and Issue: 61, P. 104899 - 104899

Published: Aug. 2, 2024

The article presents a comprehensive simulation study on cold storage porous containers, employing the Galerkin method to analyze their thermal behavior. A key focus of investigation is incorporation both radiation and conduction modes within mathematical model, acknowledging significant roles in freezing process. To enhance rate, hybrid nanoparticles are introduced into H2O, aiming speed up solidification. Notably, integrates adaptive grid techniques achieve higher modeling accuracy, with verification processes confirming high level agreement between results experimental data. This research also underscores potential for improved energy efficiency systems, contributing sustainability natural resources by reducing consumption enhancing overall systems. Through meticulous examination, explores impacts various factors freezing, including fraction nano-powders (ϕ), porosity (γ), factor (Rd). Remarkably, introduction media causes substantial increment resulting an improvement approximately 91.19 %. Moreover, inclusion term model significantly reduces completion time 30.85 %, underscoring importance considering effects such Additionally, dispersing water, decrement around 7.21 approach highlights optimizing use applications, thereby promoting conservation sustainable management resources.

Language: Английский

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Increment of solidification rate due to radiation and conduction mechanism in existence of porous container filled with nanomaterial

Case Studies in Thermal Engineering, Journal Year: 2024, Volume and Issue: 61, P. 104850 - 104850

Published: July 18, 2024

In current study, Galerkin techniques have been utilized to model the freezing behavior of a cold storage unit. The system features fins and porous foam, enhancing its efficiency in solidifying liquids. Additionally, hybrid nanoparticles introduced into water improve conductivity. energy equation has augmented with new term for radiation mode, alongside source freezing. With goal determining amounts scalars at each node, consists two equations. Mesh adaptation employed accommodate dynamic nature process. Validation against previous data demonstrates good agreement, bolstering reliability simulation. introduction foam domain results significant enhancement rate, an increase about 90.75 %. Furthermore, scenarios without mixing nano-powders surge factor contribute notable reductions completion time, decreases approximately 12.52 % 8 %, respectively. By combining all these techniques, considerable reduction solidification time can be achieved, amounting around 91.46 This highlights importance comprehensive approach improving efficiency. units through advanced this research contributes sustainable use natural resources, highlighting potential reducing consumption minimizing environmental impact.

Language: Английский

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Influence of nanoparticles and fins on performance improvement of cold storage system utilizing numerical technique

Journal of Energy Storage, Journal Year: 2024, Volume and Issue: 98, P. 112995 - 112995

Published: July 25, 2024

Language: Английский

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Effect of installing branch-shaped fin on cold energy saving during freezing considering nanomaterial

Case Studies in Thermal Engineering, Journal Year: 2024, Volume and Issue: 60, P. 104799 - 104799

Published: July 6, 2024

This research examines the solidification through a finned tank containing alumina nano-powders and water as PCM (phase change material). Mathematical models were developed, assuming uniform concentration of neglecting convective term effects. The model includes three time-dependent terms, discretized using an implicit approach, with solutions obtained via Galerkin method convergence achieved adaptive mesh. thermal conductivity NEPCM improves increased (ϕ), resulting in faster transition from liquid to ice. For pure water, complete freezing time is 6795.38 s; however, additives, this reduced by 26.78 %. Additionally, powders higher "m" value further accelerates process, decreasing completion about 6.98 effect powder configuration becomes more pronounced increasing concentration. These findings are crucial for enhancing sustainability natural resources improving cold storage processes.

Language: Английский

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Improvement of cold storage efficiency with loading hybrid nanoparticles and utilizing porous media

Case Studies in Thermal Engineering, Journal Year: 2024, Volume and Issue: 61, P. 104885 - 104885

Published: July 23, 2024

The purpose of current article is to develop a more efficient cold storage design by integrating hybrid nanomaterials and permeable foam. container architecture features two sinusoidal walls containing water, with the addition nano-powders enhance conduction. Additionally, account for radiation effects, source term based on Roseland approximation incorporated into energy equation. unsteady terms freezing are discretized using an implicit technique, model solved Galerkin method. Grid configuration adjusted position solid front ensure accurate simulation results. Verification against previous data demonstrates reasonable accuracy in outputs. study reveals significant improvements efficiency through adoption these techniques. Without any enhancements, required time approximately 1552.28 s. However, integration all three techniques results remarkable reduction about 91.64 % this time, emphasizing substantial impact proposed modifications. Specifically, enhances rate 7.84 %, while saturating medium porous foam leads decrement around 90.69 %. Furthermore, increase factor (Rd) 1 notable improvement 20.02 efficiency.

Language: Английский

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Impact of nano-powders on conduction mechanism during solidification through cold storage tank

Journal of Energy Storage, Journal Year: 2024, Volume and Issue: 100, P. 113451 - 113451

Published: Aug. 28, 2024

Language: Английский

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