Showing papers in "Applied Thermal Engineering in 2020"

TL;DR: In this paper, a review of different aspects of nanofluid stability starting from the preparation stage till implementation in practical applications is presented, focusing on the stability as a function of operating conditions such as high temperature, pressure, confinement, composition, salinity, external magnetic field and shear rate.

TL;DR: In this article, a comparative study is carried out for the wall coupled with PCM and the wall with phase stabilised PCM to reveal the contribution of latent heat to the thermal performance of the wall and to determine the location, thickness and melting temperature of PCM for the maximum exploitation of the latent heat for different climatic conditions.

TL;DR: In this article, a comprehensive review on the preparation techniques as well as the applications of NePCMs in various fields is presented, which will intend readers to provide some insight to explore the further applications and essential properties.

TL;DR: A new productivity prediction model of active solar still was developed depending on improving the performance of the traditional artificial neural networks using Harris Hawks Optimizer, which had the best accuracy in predicting the solar still yield compared with the real experimental results.

TL;DR: In this paper, a hybrid thermal management system (TMS) including air cooling and heat pipe for electric vehicles (EVs) is presented, which can reduce the module temperature compared with natural air cooling by up to 34.5%, 42.1%, and 42.7% respectively.

TL;DR: In this paper, the authors present a review on thermal energy storage (TES) systems and an update of the latest developments of different technologies of TES that are commercially available or under investigation.

TL;DR: In this article, the performance of active air cooling and passive phase change material (PCM) cooling for battery thermal management system (BTMS) is assessed in terms of battery thermal states and cycle life.

TL;DR: In this article, a novel modular liquid-cooled system for batteries and carried out the numerical simulation and experiment to study the effect of coolant flow rate and cooling mode (Serial cooling and parallel cooling) on the thermal behavior of the battery module.

TL;DR: In this paper, the authors developed a simple method of constructing a symmetrical air-cooled system with uneven cell-spacing distribution to improve the cooling performance and showed that the system with fewer battery cells can achieve a more uniform temperature distribution, and the energy consumption of each cell is lower.

TL;DR: In this paper, a thermal equivalent circuit model (TECM) is developed to describe the thermal behavior of the battery module, and the TECM has potential usefulness in the real-time prediction of temperature, analysis of large battery pack and development of control strategy.

TL;DR: In this article, a step double slope solar still (SDSSS) with linen wicks (LWs) and carbon black nanoparticles (CBNs) was used to increase evaporation surface area and enhance heat transfer.

TL;DR: In this paper, three different methods including geometry modification, adding nanoparticles and metal foam are studied in a triple-tube latent heat storage system (LHS), where PCM is enclosed in the middle tube while water passes through the inner and outer tubes as the heat transfer fluid (HTF).

TL;DR: In this paper, a battery thermal management (BTM) system containing flat heat pipes was established to improve the temperature uniformity during high discharge rate operations, thereby ensuring battery performances, long lifetimes, and safety.

TL;DR: In this article, a heat pipe assisted separation type battery thermal management system (BTMS) using porous metal foam saturated with phase change material is developed to balance the temperature in a LiFePO4 battery pack.

TL;DR: The main aims of this study are to cover the research gap in a review of cross-section impact on the thermo-hydraulic performance of microchannel heat sinks and the commercialized heat sinks for electronics cooling were discussed which has not been reported before.

TL;DR: In this article, a comprehensive analysis is presented on utilizing nonhomogeneous porous metal foams as thermal conductivity enhancers (TCEs) in energy storage systems and heat sinks working with phase change materials (PCMs).

TL;DR: In this article, the impingement cooling of a porous metal CPU cooler saturated with nanofluid under the effects of magnetic field was modeled analytically, and the original partial differential governing equations were converted to nonlinear ordinary differential equations (ODEs).

TL;DR: In this article, a new heat transfer fin design was proposed to improve melting in thermal energy storage, which may improve melting of non-melting regions in TES, and the melting ratio at t = 120 min is 98% and 36% for base and nano PCMs, respectively.

TL;DR: In this article, a combination of solid oxide fuel cell (SOFC) with compressed air energy storage (CAES) and turbocharger is presented for simultaneous production of domestic hot water and power in the scale of retail buildings for peak shaving applications.

TL;DR: In this article, two hybrid TMSs including phase change materials (PCM) and cooling water pipes are presented for a Li-ion module with high-capacity prismatic cells, and five other cases (two active, one passive and two naturally ventilated) are constructed and the thermal performance of the seven cases is experimentally evaluated and analyzed.

TL;DR: In this paper, a composite thermal management system integrated with mini-channel liquid cooling and air cooling is proposed to overcome the temperature increase of battery along the flow direction of coolant in cylindrical lithium-ion battery module.

TL;DR: In this article, the effect of fin material on PCM melting in a rectangular enclosure was analyzed and four commonly employed indicators, surface averaged Nusselt number, melting time, total stored energy and mean power, and two proposed, stored energy per mass and cost per energy stored, were used to evaluate the influence of fin materials roundly.

TL;DR: In this paper, plasmonic metal nanoparticles were uniformly deposited on the surface of the oriented vessels to form the structure of photothermal conversion, which can transform the light path by the waveguide effect and continuously transport water by the capillary effect.

TL;DR: In this paper, an optimization study was conducted for an external office wall containing a phase change material (PCM) layer under intermittent cooling operation, where the design parameters such as location, PCM layer thickness and phase transition temperature were optimized to maximize energy savings by efficient use of latent heat.

TL;DR: In this article, the root mean square (RMS) of the LHTES unit using arithmetic fins is the lowest in the four fin arrangements, following by lower fins, upper fins, middle fins and upper fins.

TL;DR: In this article, the authors provide a comprehensive overview of the latest numerical studies on NePCM for thermal energy storage (TES) and compare the pros and cons of dispersing nanoparticles and other heat transfer enhancement techniques such as mounting fins and using porous foams.

TL;DR: In this paper, the authors established a cooling system as high heat dissipation has increasingly become the dominant factor restricting the function of electronic devices, particularly the CPU, and showed that the surface temperature of CPU becomes lower and lower as the increase of magnetic field intensity and rotation angle.

TL;DR: In this article, a series of experiments are conducted with and without fin configurations to investigate the effects of fin configurations, and an optimized PCM module combining various fins is designed and tested for its thermal performance, where a greater balance between the heat absorption and heat dissipation is obtained with lower maximum battery temperature and smaller temperature range.

TL;DR: In this paper, a review on single-phase convective heat transfer enhancement based on multi-longitudinal vortices is carried out, and some new perspectives on the existing research gaps, challenging, and future research directions have been provided for the development of enhanced heat transfer techniques by generating multilevel vortex generators in heat exchanger tubes.

TL;DR: Li et al. as discussed by the authors proposed a battery-thermal management design to attack thermal deterioration of lithium-ion battery at low and high temperatures, which integrates phase change material, heat pipe and spray cooling.