Heat transfer enhancement of
            <scp>
              Fe
              <sub>3</sub>
              O
              <sub>4</sub>
            </scp>
            ‐water nanofluid by the thermo‐magnetic convection and thermophorestic effect

Du, Jiayou; Wang, Ruijin; Zhuo, Qiuyi; Yuan, Wenbo

doi:10.1002/er.7821

Cited by 25 publications

(6 citation statements)

References 36 publications

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“…φ hnp (22) The following Equation ( 23) was utilized to theoretically calculate the value of the specific heat of mono nano-PCM, which is formulated according to the principle of mixture theory [44]: (23) Specific heat of hybrid nano-PCM can be estimated from Equation 24:…”

Section: Numerical Model 31 Governing Equationsmentioning

confidence: 99%

“…They are extensively utilized in many applications, such as photocatalysis, polymer reinforcing, and heat transfer enhancement. Many studies have focused on using nanoparticles to enhance the thermal characteristics of fluids [22]. Hamali and Almusawa [23] applied the Galerkin technique to investigate water freezing with the assistance of extended surfaces and nanoparticles using a two-dimensional model.…”

Section: Introductionmentioning

confidence: 99%

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Improving the charging rate and energy recovery of triplex tube heat storage-based pcm with mono/hybrid nanoparticles

Sadiq,

Aljabair,

Karamallah

2024

ETJ

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The heat transfer performance of energy storage was improved.• Hybrid nano-PCM was the most efficient enhancer.• An optimal 1.6% volume fraction balanced performance and economics. • 1.6% hybrid nano-PCM reduced overall melting time by 16.8%.Latent thermal energy storage systems are widely utilized to match the inequality between heat supply and demand. Despite these systems' wide range of uses in various applications, their high potential is limited by the slow charging rate. The target of this study is to augment the thermal performance of paraffin-based on triplex tube heat storage by dispersion of two different types of conductive mono nanoparticles (Al2O3, CuO) and hybrid Nano additives of various volume fractions (0.4, 0.8, 1.6, 3.2%) into paraffin wax. The experimental work involves measurements and preparation of the considered Nano-PCM. The enthalpy porosity model and finite volume method simulated the melting process. The study also investigated the temperature and liquid fraction variations in the axial, radial, and angular directions throughout melting to aid in predicting heat transfer in the storage throughout the phase transition process of PCM. Results revealed that including 1.6% of hybrid nanoparticles in PCM can increase the stored energy by 5.97%. The results also indicated that the hybrid nano-PCM exhibits the best phase transition rate and energy recovery for all volume fractions compared to mononano-PCM. At 1.6% volume fraction, the storage efficiency can be improved up to 76.8%, 75.5%, and 73.63% for hybrid nano-PCM, Al2O3-PCM, and CuO-PCM, respectively.

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Section: Numerical Model 31 Governing Equationsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Improving the charging rate and energy recovery of triplex tube heat storage-based pcm with mono/hybrid nanoparticles

Sadiq,

Aljabair,

Karamallah

2024

ETJ

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“…Huang et al [32] found that a streamlined channel structure can effectively reduce the pressure drop in liquid cooling systems, ensuring uniform battery temperature and improving system cooling capacity. Additionally, external forces such as magnetic and electric fields can enhance heat transfer performance by inducing chaotic convection [33][34][35]. Du et al [33] indicated that chaotic convection due to the Kelvin force, as well as the thermophoretic effect, can enhance heat transfer.…”

Section: Introductionmentioning

confidence: 99%

“…Additionally, external forces such as magnetic and electric fields can enhance heat transfer performance by inducing chaotic convection [33][34][35]. Du et al [33] indicated that chaotic convection due to the Kelvin force, as well as the thermophoretic effect, can enhance heat transfer. Wang et al [34] illustrated that the main mechanism for heat transfer in MCHS is chaotic convection induced by the motion of electrophoresis and thermophoresis.…”

Section: Introductionmentioning

confidence: 99%

Numerical Study on a Liquid Cooling Plate with a Double-Layer Minichannel for a Lithium Battery Module

Xu,

Wang

2023

Micromachines

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The liquid cooling system of lithium battery modules (LBM) directly affects the safety, efficiency, and operational cost of lithium-ion batteries. To meet the requirements raised by a factory for the lithium battery module (LBM), a liquid cooling plate with a two-layer minichannel heat sink has been proposed to maintain temperature uniformity in the module and ensure it stays within the temperature limit. This innovative design features a single inlet and a single outlet. To evaluate the performance of the liquid cooling system, we considered various discharge rates while taking into account the structure, flow rate, and temperature of the coolant. Our findings indicate that at a mass outflow rate of 20 g/s, a better cooling effect and lower power consumption can be achieved. An inlet temperature of 20 °C, close to the initial temperature of the battery string, may be the most appropriate because a higher temperature of the coolant will cause a higher temperature of LBM, so far as to exceed the safe threshold value. In the case of larger rate discharge, the design of a double-layer MCHS at the bottom and an auxiliary one at the side can effectively reduce the maximum temperature LBM (within 28 °C) and maintain the temperature difference in the single cell at approximately 4 °C. In the case of non-constant discharges, the temperature difference between cells increases with the maximum temperature. When the discharge rate is reduced, the large temperature difference helps the temperature to drop rapidly. This can provide guidance for the design of cooling systems for the LBM.

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“…Akhter et al [4] numerically simulated the convective heat transfer of Fe 3 O 4water nanofluids in a fan-shaped annulus cavity, and conducted the analysis on the effects of Rayleigh number, cavity structure and volume fraction of nanofluid on the heat transfer. Du et al [5] investigated the heat transfer enhancement of a MCHS in the presence of an external magnetic field, based on the Buongiorno model when the applied magnetic field and thermophorestic effect are in consideration. Wang et al [6] indicated that electrophoresis can significantly influence the heat transfer of nanofluid when external electric field is applied.…”

Section: Introductionmentioning

confidence: 99%

Numerical Investigation on the Heat and Mass Transfer in Microchannel with Discrete Heat Sources Considering the Soret and Dufour Effects

Wang

Guo

et al. 2022

Micromachines

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Heat-transfer enhancement in microchannel heat sinks (MCHS) has been a hot topic in the last decade. However, most published works did not focus on the heat sources that are discrete, as in most microelectronic devices, and the enhancement of heat and mass transfer (HMT) due to the Soret and Dufour effects being ignored. Based on a heterogeneous two-phase model that takes into consideration the Soret and Dufour effects, numerical simulations have been performed for various geometries and heat sources. The numerical results demonstrate that the vortices induced by a heat source(s) can enhance the heat transfer efficiency up to 2665 W/m2·K from 2618 W/m2·K for a discrete heat source with a heat flux q = 106 W/m2. The Soret effect can affect the heat transfer much more than the Duffour effect. The integrated results for heat transfer due to the Soret and Dufour effects are not sampled superpositions. Discrete heat sources (DHS) arranged in microchannels can enhance heat transfer, especially when the inlet velocity of the forced flow is less than 0.01 m/s. This can provide a beneficial reference for the design of MCHS with DHS.

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Heat transfer enhancement of Fe ₃ O ₄ ‐water nanofluid by the thermo‐magnetic convection and thermophorestic effect

Cited by 25 publications

References 36 publications

Improving the charging rate and energy recovery of triplex tube heat storage-based pcm with mono/hybrid nanoparticles

Improving the charging rate and energy recovery of triplex tube heat storage-based pcm with mono/hybrid nanoparticles

Numerical Study on a Liquid Cooling Plate with a Double-Layer Minichannel for a Lithium Battery Module

Numerical Investigation on the Heat and Mass Transfer in Microchannel with Discrete Heat Sources Considering the Soret and Dufour Effects

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Heat transfer enhancement of Fe 3 O 4 ‐water nanofluid by the thermo‐magnetic convection and thermophorestic effect

Cited by 25 publications

References 36 publications

Improving the charging rate and energy recovery of triplex tube heat storage-based pcm with mono/hybrid nanoparticles

Improving the charging rate and energy recovery of triplex tube heat storage-based pcm with mono/hybrid nanoparticles

Numerical Study on a Liquid Cooling Plate with a Double-Layer Minichannel for a Lithium Battery Module

Numerical Investigation on the Heat and Mass Transfer in Microchannel with Discrete Heat Sources Considering the Soret and Dufour Effects

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Heat transfer enhancement of Fe ₃ O ₄ ‐water nanofluid by the thermo‐magnetic convection and thermophorestic effect