Journal of Thermal Analysis and Calorimetry, Год журнала: 2024, Номер 149(23), С. 14257 - 14272
Опубликована: Ноя. 7, 2024
Язык: Английский
Case Studies in Thermal Engineering, Год журнала: 2024, Номер 55, С. 104165 - 104165
Опубликована: Фев. 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.
Язык: Английский
Процитировано
12
Case Studies in Thermal Engineering, Год журнала: 2024, Номер 61, С. 104899 - 104899
Опубликована: Авг. 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.
Язык: Английский
Процитировано
11
Case Studies in Thermal Engineering, Год журнала: 2025, Номер unknown, С. 105800 - 105800
Опубликована: Янв. 1, 2025
Язык: Английский
Процитировано
1
Case Studies in Thermal Engineering, Год журнала: 2024, Номер 60, С. 104779 - 104779
Опубликована: Июль 1, 2024
This article thoroughly examined the impact of Lorentz and buoyancy forces on movement nanomaterials within a sealed container. The magnetic field was aligned with x-axis, while gravity acted along y-axis. container featured heated inner surface curved outer kept at lower temperature, permeable domain allowing fluid flow. Using various shapes found to enhance heat transfer effectively. investigation provides valuable insights into optimizing in practical applications by utilizing interaction between forces. analysis applied Darcy's formulation account for media simplified equations using stream function concept. numerical code underwent rigorous verification ensure its accuracy reliability. Introducing nanoparticles significantly increased Nusselt number (Nu), indicating an approximate 41.42 % improvement efficiency. Additionally, raising parameter "m" resulted 11.76 increase Nu. However, increasing Ha led 46.72 reduce Nu, reflecting reduced In contrast, boosting Rayleigh (Ra) substantially enhancing efficiency about 59.78 %.
Язык: Английский
Процитировано
8
Case Studies in Thermal Engineering, Год журнала: 2024, Номер 60, С. 104805 - 104805
Опубликована: Июль 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
Язык: Английский
Процитировано
5
Journal of Energy Storage, Год журнала: 2024, Номер 86, С. 111371 - 111371
Опубликована: Март 23, 2024
Язык: Английский
Процитировано
3
Case Studies in Thermal Engineering, Год журнала: 2024, Номер 60, С. 104799 - 104799
Опубликована: Июль 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.
Язык: Английский
Процитировано
3
Journal of Thermal Analysis and Calorimetry, Год журнала: 2024, Номер unknown
Опубликована: Сен. 18, 2024
Язык: Английский
Процитировано
3
Results in Engineering, Год журнала: 2024, Номер unknown, С. 103264 - 103264
Опубликована: Окт. 1, 2024
Язык: Английский
Процитировано
3
Case Studies in Thermal Engineering, Год журнала: 2024, Номер unknown, С. 105195 - 105195
Опубликована: Сен. 1, 2024
Язык: Английский
Процитировано
3