Optimizing Heat Transfer in Microchannel Heat Sinks: A Numerical Investigation with Nanofluids and Modified Geometries

International journal of engineering. Transactions B: Applications, Год журнала: 2024, Номер 37(5), С. 860 - 875

Опубликована: Янв. 1, 2024

The utilization of microchannel heat sinks stands as one the most reliable solutions for dissipating generated in electronic chips. In this numerical study, a fractal sink employing three nanofluids Cu-water, Al2O3-water, and TiO2-water with variable volume fractions 2 4 percent cooling fluid within microchannels was investigated. flow inside analyzed from both hydrodynamic thermal perspectives. parameters such pump power, Nusselt number, performance evaluation criterion (PEC) were studied. Results demonstrate that transfer increases an increase rate fraction nanoparticles. maximum temperature reduction Cu-water nanofluid at inlet 200 ml/min 4% is 2.41%, highest among investigated nanofluids. However, also exhibits pressure drop, reaching 25% fraction. PEC number analysis reveals overall all microchannels. best comprehensive performance, providing 8% enhancement, followed by Al2O3-water nanofluids, which system 5% 4%, respectively. Furthermore, study introduced fins cavities to branches enhance performance. indicate modified geometries. 3.5% lower compared original geometry ml/min, while showed 1% reduction. experiences 400% higher drop than initial geometry, has increase. demonstrated improves 8%, whereas reduced 4%.

Язык: Английский

---

Analysis of magneto-natural convection and second law of thermodynamics of Cu-Al2O3-hybrid nanofluid in a vertical wavy cabinet having a localized non-uniform heat source

Journal of Magnetism and Magnetic Materials, Год журнала: 2024, Номер 610, С. 172416 - 172416

Опубликована: Сен. 8, 2024

Язык: Английский

---

Optimizing Heat Dissipation in Microchannel Heat Sinks using Hybrid Nanofluids: A Computational Study

Iranica Journal of Energy and Environment, Год журнала: 2024, Номер 15(4), С. 392 - 401

Опубликована: Янв. 1, 2024

The use of microchannel heat sinks is one the most popular methods for cooling electronic components. In recent years, fractal microchannels have attracted researchers' attention, leading to increased transfer and reduced pressure drop compared parallel microchannels. this study, two hybrid nanofluids under laminar flow conditions are used inside microchannels, simulations conducted using COMSOL Multiphysics software. Parameters such as pumping power, maximum temperature, performance evaluation coefficient investigated nanofluids, Fe3O4-MoS2 Fe3O4-Al2O3 (mixed 50%-50% with a volume fraction 1% each nanoparticle). results indicate that thermal nanofluid superior, 0.5% improvement in temperature sink. On other hand, increases power by 9% microchannel. Ultimately, overall system enhanced both improves 3.2%, providing better making it more suitable sinks.

Язык: Английский

---

Flow and heat transfer of non-miscible micropolar and Newtonian fluid in porous channel sandwiched between parallel plates

Chinese Journal of Physics, Год журнала: 2024, Номер 92, С. 33 - 50

Опубликована: Сен. 2, 2024

Язык: Английский

---

Investigation of Natural Convection Heat Transfer in MHD Fluid within a Hexagonal Cavity with Circular Obstacles

International Journal of Thermofluids, Год журнала: 2024, Номер unknown, С. 101024 - 101024

Опубликована: Дек. 1, 2024

Язык: Английский

---