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Showing papers in "International Journal of Heat and Mass Transfer in 2020"


Journal ArticleDOI
TL;DR: In this article, the thermal performance of the battery module has been numerically investigated by adopting a phase change cooling technique, and an optimized PCM module is proposed based on above, and compared with the PCM.

165 citations


Journal ArticleDOI
TL;DR: In this article, the authors investigated and simulated the thermal performance of water-cooled lithium-ion battery cell and pack used in electric vehicles at high discharge rate with a U-turn type microchannel cold plate and recommended an optimal cooling strategy by considering the effects of various parameters including different discharge rates, inlet coolant mass flow rates, and inlet temperature.

119 citations


Journal ArticleDOI
TL;DR: In this article, a numerical study was carried out through 3D lattice Boltzmann method with respect to different pin-fin configurations, expanded graphite (EG) content, PCM melting temperature, and heat flux conditions.

119 citations


Journal ArticleDOI
TL;DR: In this article, the conjugate flow and heat transfer of phase change materials (PCMs)-metal foam confined between two annuli is addressed, where a pulse heat load is employed at the inner surface of annuli, while the outer surface is subject to convection cooling.

117 citations


Journal ArticleDOI
TL;DR: In this article, the authors investigated the effect of fin number density on the melting rate of a solid phase change material within an annulus where the inner and outer pipes were subjected to constant wall temperature.

116 citations


Journal ArticleDOI
TL;DR: In this article, the most recent advancement in heat transfer fluids, their preparation and stability issues when doped with nanoparticles are discussed and compared and their preparation methods and properties are discussed.

109 citations


Journal ArticleDOI
TL;DR: In this article, nano-encapsulated phase change material (NEPCM) nanoparticles with particle sizes in the range of 250-350nm are synthesized and used as the working fluid for heat removal from a microchannel heatsink.

109 citations


Journal ArticleDOI
TL;DR: In this article, a numerical study was performed to investigate the melting process in a square enclosure whose two facing walls are maintained at different constant temperatures while the other facing walls were thermally insulated.

107 citations


Journal ArticleDOI
TL;DR: In this paper, the authors experimentally measured the convective heat transfer of a micro-channel heat sink cooling with carbon-acetone nanofluid (NF), which potentially is a cost-effective nano-suspension with plausible heat transfer characteristics.

105 citations


Journal ArticleDOI
TL;DR: In this paper, the potential effect of the surface shape and geometrical specification of rectangular parallel fins developed on the surface on the heat transfer coefficient, bubble formation, and fouling of the nanoparticles was analyzed.

103 citations


Journal ArticleDOI
TL;DR: In this article, the Nusselt number on the obstacles is used to predict the thermal response of the inlet flow in a porous medium with time-varying inlet flows.

Journal ArticleDOI
TL;DR: In this paper, a comprehensive review of published literature concerning enhancement of channel flow boiling heat transfer by surface modification is provided, including macro, micro, nano, and hybrid multiscale methodologies.

Journal ArticleDOI
TL;DR: In this article, a corrugated plate heat exchanger in solar energy systems is used to investigate heat transfer and fluid flow characteristics of various nanofluids by adding various nanoparticles (Al2O3-30nm, SiC-40nm, CuO-30 nm and Fe3O4-25nm) into the base fluid.

Journal ArticleDOI
TL;DR: In this article, the heat transfer performance of single and hybrid nanofluids in a two-phase closed thermosyphon was experimentally studied and compared with deionized water (DW).

Journal ArticleDOI
Haitao Zhao1, Kaidi Jiang1, Rui Yang1, Yimin Tang1, Jiaping Liu2 
TL;DR: In this article, a coupled model of temperature and relative humidity (RH) was proposed to predict the early-age cracking in concrete-based materials. But, the model is not suitable for the early age of concrete and the results showed that the early change in RH is significantly affected by the large temperature change and rate of temperature change in the early ages.

Journal ArticleDOI
TL;DR: In this article, the effect of charging and discharging of multi-layer phase change materials (PCMs) in coaxial cylinders with a time-periodic boundary condition is numerically investigated.

Journal ArticleDOI
TL;DR: In this paper, the authors investigated the natural convection of Al2O3−MWCNT/water nanofluids at various bi-nanoparticles' percent weights.

Journal ArticleDOI
TL;DR: In this article, a numerical simulation model is established by the finite element method to predict the meso-scale effective thermal conductivity of soil, and Monte Carlo simulation is employed to account for the random distribution of voids.

Journal ArticleDOI
TL;DR: In this paper, an integrated modeling framework for multi-track, multi-layer and multi-material SLM is developed to advance the in-depth understanding of this process by modeling the molten pool evolvement and track morphology of multiple materials deposited on the same and across different layers.

Journal ArticleDOI
TL;DR: In this article, the authors explored the mechanisms of entropy generation rate in these micro energy systems and identified the possible future avenues of research in this field, including the unexplored and less investigated areas such as second law analysis of micro porous systems using pore-scale modeling and entropy generation rates of airflow through microchannels with inserts.

Journal ArticleDOI
TL;DR: In this paper, a simulation of laser powder bed fusion of stainless steel 316-L single tracks was simulated by using computational fluid dynamics, which revealed the various effects of surface tension, Marangoni shear force, viscous force and recoil pressure on the humping phenomenon.

Journal ArticleDOI
TL;DR: In this article, the authors report the results of series of experiments aiming at identifying the key mechanisms affecting the transient boiling heat transfer coefficient and the fouling thermal resistance, which are quantified at steady state condition and in a transient study over 1000 min of continuous operation of the heater.

Journal ArticleDOI
TL;DR: In this article, two configurations of multilayer in-plane graphene/hexagonal boron nitride (Gr/h-BN) heterostructures were constructed via weak van der Waals (vdW) interactions and systematically investigated the dependence of their interfacial thermal conductance (ITC) on the number of layers using non-equilibrium molecular dynamics simulations.

Journal ArticleDOI
TL;DR: In this paper, a deformed mesh method based on the Arbitrary Lagrangian-Eulerian (ALE) was used to solve the Stefan problem in the case of nano-enhanced PCM.

Journal ArticleDOI
TL;DR: In this article, a two-dimensional model of the melting heat transfer process for phase change material with Paraffin wax RT58 in a finned LHS unit is developed and numerically solved to investigate the melting behaviors.

Journal ArticleDOI
TL;DR: A systematic overview of all key two-phase instabilities focusing on the fundamental mechanisms leading to their occurrence is provided, with emphasis on how these mechanisms may change depending on whether flow may be classified as macro- or micro-channel.

Journal ArticleDOI
TL;DR: In this article, the impacting-freezing dynamics of a supercooled water droplet on a cold surface is studied experimentally and numerically using a numerical model that considers both the effects of the supercooling degree on the physical properties and of the dynamic contact angle on the contact line motion.

Journal ArticleDOI
TL;DR: In this article, a review of the literature on the theory, underlying mechanisms, experiments and applications of dropwise condensation is presented, and insights gained from this review and assessment are also used to identify the need for accurate heat transfer measurements and improved modeling of DWC.

Journal ArticleDOI
TL;DR: In this article, the self-heating reaction of Li ion batteries with different states of charge (SOCs) is investigated by the standard accelerating rate calorimeter (ARC).

Journal ArticleDOI
TL;DR: In this article, the thermal performance of a four-turns Pulsating Heat Pipe (PHP) using a weight concentration of 0.1 wt% Al2O3-CuO hybrid nanofluid and water both experimentally and numerically were evaluated with respect to heating power and filling ratio of 10-100