Showing papers in "Applied Thermal Engineering in 2021"

TL;DR: In this article, the authors have analyzed the effect of width of tapes on the velocity gradient of the flow in turbulent simulation, and showed that the increase in velocity gradient increases the Sgen,f (frictional entropy) with the augment of width.

TL;DR: A review of the current state-of-the-art of sCO 2 power generation systems, with a focus on technical and operational issues, is provided in this article, where the authors discuss the current research and development status in the areas of turbomachinery, heat exchangers, materials and control system design with priority given to experimental prototypes.

TL;DR: In this paper, a flexible composite SBS@PA/EG is successfully prepared by dissolving in an organic solvent and utilized in battery thermal management (BTM) system, where styrene butadiene styrene (SBS) is used as a supporting material, paraffin (PA) as a phase change material and expanded graphite (EG) as thermal conductivity enhancer.

TL;DR: In this article, both experimental and numerical results on phase change materials coupled with aluminum foams under different heat fluxes, porosities, number of Pores Per Inch (PPIs) and orientation are presented.

TL;DR: In this paper, a hybrid battery thermal management system based on phase change material (PCM) and liquid cooling is proposed, which can fully meet the heat dissipation demand under extreme operating conditions.

TL;DR: In this article, a comparative analysis is conducted between air type and liquid type thermal management systems for a high-energy lithium-ion battery module using computational fluid dynamics (CFD) simulations.

TL;DR: In this article, the performance of battery thermal management system (BTMS) with phase change material (PCM) and heat pipe (HP) was compared to that of the one with solely HP, find that PCM can effectively reduce the temperature difference in battery pack Then, the influences of the environmental parameters, the parameters of the HP and PCM on system performance are investigated using numerical method.

TL;DR: In this paper, a novel cooling strategy based on setting spoilers in the airflow distribution plenum of a parallel air-cooling model was proposed to improve the cooling performance of a battery cooling system.

TL;DR: In this article, the progress, challenges and opportunities in heat transfer research as applied to high-temperature solar thermal and thermochemical energy systems are reviewed, including the fundamentals of concentrated solar energy collection, convective heat transfer in solar receivers, application of liquid metals as heat transfer media, and heat transfer for non-reacting and reacting two-phase solid-gas systems such as particle-gas flows and gas-saturated porous structures.

TL;DR: In this article, a comprehensive survey on the potential of district heating systems in accommodating fluctuating heat supply and demand is proposed, and future directions for deploying the flexibility of district heat systems in northern China, including new heat sources, digitalization, demand side management, heat market deregulation, and energy policy reform.

TL;DR: In this article, the authors introduced a new concept of free water dripping on the basin water using cracks in the suspended trays of the trays solar still to break the boundary layers and surface tension of the basin basin water inside the solar distiller.

TL;DR: In this paper, a direct liquid battery cooling system based on a hydrofluoroether (HFE-6120) coolant is proposed for fast-charging battery packs, which has a redundant cooling performance with the problems of low energy density and high power consumption, which can be resolved through optimization.

TL;DR: In this paper, the authors make an attempt to add aluminium oxide (AL2O3) nanoparticles (25, 100ppm) into diesel-methanol blends, and to study the impact of the nanoparticle additive on the characteristics of a modern DI diesel engine.

TL;DR: In this paper, a sandwiched configuration of the heat pipes cooling system (SHCS) is suggested for the high current discharging of lithium-titanate (LTO) battery cell.

TL;DR: In this article, an extensive parametric and sensitivity analysis on PCM-integrated lightweight building walls and examine the combinatory effects of various PCM parameters on thermal load modulation and wall-related heat gains in buildings.

TL;DR: In this paper, a new method was introduced to improve the cooling performance of the BTMS, the airflow distribution of the battery pack could be effectively improved by the proposal of parallel plate installation method.

TL;DR: A model considering demand response takes the optimal comprehensive evaluation index consisting of economic benefits of both supply side and user side, load peak valley ratio and carbon emission as the objective function and shows that user-side demand response reduces the total cost of regional integrated energy system.

TL;DR: A novel air cooling BTMS which reduces the temperature and volume and installs the spoilers in the battery gap spacing, which can effectively improve the heat dissipation performance of the battery.

TL;DR: In this paper, a novel heat sink composed of phase change material (PCM) and metal foam (porous) was used to cool the concentrator photovoltaic (CPV) at a solar concentration ratio (CR) of 20.

TL;DR: In this article, a detailed overview of flow distribution and heat transfer during impingement of liquid sprays on heated surfaces is presented from the viewpoint of temperature control of high power LED sources.

TL;DR: In this paper, a honeycomb-like battery thermal management system (BTMS) integrated hexagonal cooling plate with bionic liquid mini-channel and phase change materials is proposed to improve the working performance of the lithium-ion battery.

TL;DR: In this paper, the effect of series, parallel and hybrid selective exhaust gas recirculation is examined, a concept where selectively CO2 can be recycled back and mixed into the ambient air to the inlet feed of the compressor thereby reducing the flue gas flow rate and enhancing CO2 content at the capture plant.

TL;DR: In this article, the thermal performance of a LHTES unit equipped with vertical multitube shell and spiral-finned tube was investigated using paraffin as PCM and water as heat transfer fluid (HTF).

TL;DR: In this article, a multi-objective optimization problem for both finned and non-finned metal foam heat sinks was studied by numerically investigating thermo-fluid-dynamics to maximize heat rate and minimize pumping power.

TL;DR: In this paper, a review of the research background and development process of nano-encapsulated phase change materials (NEPCMs) was introduced. And the structure, principle and function of NEPCMs, including the types and selection principles of core and shell materials were analyzed.

TL;DR: In this article, the authors provide a comprehensive review and classification of thermal energy storage technologies applied in the built environment considering the trends and the future perspective of the past and current research, including sensible, latent, and sorption and chemical reactions (also called thermochemical) energy storage.

TL;DR: In this article, a battery thermal management system (BTMS) for cooling of battery pack, using phase change materials (PCM) and mini-channel cold plates (MCPs), has been designed and numerically studied.

TL;DR: In this article, Li-ion/Lumped and 3D conjugate heat transfer model were compared for heat generation and dissipation rates at different discharge rates (1 - 4 C ) and coolant inlet temperatures (15 - 35 ° C ).

TL;DR: In this article, the authors developed an integrated numerical model for the optical-thermal-fluid-mechanical analysis of PTRs by coupling Monte Carlo ray-tracing method, finite volume method, and finite element method.

TL;DR: In this paper, a review of regenerative cooling on the engineering application for the combustion chambers of scramjets is carried out, including supercritical heat transfer and hydrocarbon fuel coking.