Assessment of a Top and Bottom Cooling Strategy for Prismatic Lithium-Ion Cells Intended for Automotive Use DOI Creative Commons
Said Madaoui, Bartłomiej Guzowski, Roman Gozdur

et al.

Batteries, Journal Year: 2024, Volume and Issue: 10(11), P. 403 - 403

Published: Nov. 15, 2024

In contemporary vehicle applications, lithium-ion batteries have become a leading option among the diverse array of battery technologies available. This preference is attributed to their advantageous properties, which include low self-discharge rates and no memory effect. Despite these benefits, are not without challenges. The key issues restricted driving range, concerns regarding longevity, safety risks, prolonged charging durations. Efforts aimed at minimizing duration frequently entail introduction elevated currents into battery, practice that can significantly elevate its temperature and, in turn, diminish operational lifespan. Generally, packs electric vehicles equipped with flat cooling plates located on side or bottom surfaces, also serve dual purpose providing heating colder conditions. Nevertheless, this configuration faces difficulties during fast may efficiently heat cool batteries. work, novel thermal management approach proposed, module cooled only plate but using another contact busbars, top module. simulations experimental tests show new demonstrates significant improvements. time constant reduced by 47%, enabling faster Additionally, maximum reached lowered 6 °C compared conventional approach. configuration, acts as bridge. advantage promotes homogenization within As result, it supports an even aging process batteries, ensuring longevity optimal performance.

Language: Английский

Machine Learning-Driven Scattering Efficiency Prediction in Passive Daytime Radiative Cooling DOI Creative Commons
Changmin Shi,

Jiayu Zheng,

Ying Wang

et al.

Atmosphere, Journal Year: 2025, Volume and Issue: 16(1), P. 95 - 95

Published: Jan. 16, 2025

Passive daytime radiative cooling (PDRC) has emerged as a promising, electricity-free approach that reflects sunlight while radiating heat through the atmospheric transparent window. However, design and optimization of PDRC materials remain challenging, requiring significant time resources for experimental numerical modeling efforts. In this work, we developed machine learning (ML)-driven to predict scattering efficiency in wavelength 0.3–2.5 μm, with aim eventually optimizing microstructural materials. By employing ML models such linear regression, neural networks, random forests, aimed optimize across different pore sizes mixed-pore-size configurations. As result, forest model demonstrated superior prediction performance minimal error, effectively capturing complex, non-linear interactions between material features. We also leveraged data transformation techniques one-hot encoding generative predictions The presented ML-driven platform serves valuable open resource researchers, facilitating rapid cost-effective accelerating development sustainable technologies.

Language: Английский

Citations

2
Turning Discarded Oyster Shells into Sustainable Passive Radiative Cooling Films DOI Open Access
Jung‐Hwan Lee, Dae Jung Kim,

Daeyul Kwon

et al.

Polymers, Journal Year: 2025, Volume and Issue: 17(3), P. 275 - 275

Published: Jan. 22, 2025

Inorganic materials used in passive radiative cooling have achieved a commendable level of performance through synthesis, yet they lack sustainability and environmental friendliness as do not incorporate recycling. This study developed novel (PRC) film utilizing calcium carbonate extracted from discarded oyster shells (D-CaCO3) polyurethane (PU) the matrix. sustainable approach leverages unique properties CaCO3, such high solar reflectance strong infrared emissivity, to achieve significant effects. The PU/D-CaCO3 absorbs only 22% total light exhibits emissivity 95% atmospheric window, achieving temperatures up 7 °C lower than surrounding environment under 650 W/m2 irradiance. Furthermore, field tests were conducted verify implementation our optical strategy by analyzing FDTD simulations. Consequently, outperformed conventional white paint pure PU, demonstrating maximum temperature difference °C. Additionally, efficiency was verified theoretical calculations. oyster-shell-derived CaCO3 utilizes waste contributes carbon sequestration, aligning with eco-friendly goals. research demonstrates potential using marine-derived technologies, offering path reduce energy consumption greenhouse gas emissions applications. findings highlight commercial viability benefits films, marking progress cooling.

Language: Английский

Citations

0
Challenges and Opportunities for Aquifer Thermal Energy Storage (ATES) in EU Energy Transition Efforts—An Overview DOI Creative Commons

Katarina Marojević,

Tomislav Kurevija, Marija Macenić

et al.

Energies, Journal Year: 2025, Volume and Issue: 18(4), P. 1001 - 1001

Published: Feb. 19, 2025

Aquifer Thermal Energy Storage (ATES) systems are a promising solution for sustainable energy storage, leveraging underground aquifers to store and retrieve thermal heating cooling. As the global sector faces rising demands, climate change, depletion of fossil fuels, transitioning renewable sources is imperative. ATES contribute these efforts by reducing greenhouse gas (GHG) emissions improving efficiency. This review uses PRISMA (Preferred Reporting Items Systematic Reviews Meta-Analysis) methodology as systematic approach collect analyze relevant literature. It highlights trends, gaps, advancements in systems, focusing on simulation methods, environmental impacts, economic feasibility. Tools like MODFLOW, FEFLOW, COMSOL Multiphysics emphasized optimizing design system performance. Europe identified continent with most favorable predispositions implementation due its diverse abundant aquifer strong policy frameworks supporting energy, subsurface technologies.

Language: Английский

Citations

0
Optimizing Energy Efficiency and Light Transmission in Greenhouses Using Rotating Low-Emissivity-Coated Envelopes DOI Creative Commons
S. N. Song, JungHo Jeon, Seong-Hwan Yoon

et al.

Energies, Journal Year: 2025, Volume and Issue: 18(7), P. 1613 - 1613

Published: March 24, 2025

Growing demand for sustainable agricultural solutions has driven innovations in greenhouse design, particularly urban areas. This study evaluated the relationship between transparent envelope thermal properties and energy loads through regression analysis using DesignBuilder simulations. The performance of was designated as independent variables to quantify its impact on heating cooling loads. Based this analysis, a rotatable low-emissivity (low-E) coating system optimized temperate climate zones proposed. allows seasonal adjustment orientation enhance efficiency. Compared traditional materials, approach achieved up 16% savings without compromising visible light transmittance, essential crop growth. While double-glazed low-E glass demonstrated highest reduction (22%), it reduced transmittance by 20%, potentially affecting productivity. In contrast, proposed maintained high while achieving significant efficiency, balancing environment requirements. Additionally, integrating with building structures resulted 31.91% consumption improved insulation. These findings highlight potential adaptable envelopes improve support sustainability.

Language: Английский

Citations

0
Decorating Natural Silk Nanofiber Aerogel with a Hierarchical Structure via TiO2 for Improved UV Protection and Radiation Cooling DOI
Huiyu Yang, Rong Chen,

Guowen Yu

et al.

Langmuir, Journal Year: 2025, Volume and Issue: unknown

Published: March 28, 2025

Daytime radiant cooling achieves a sustainable effect by reflecting sunlight and heat. However, absorption of emitters parasitic heat gain can significantly reduce radiative temperatures. To improve the light reflectivity emissivity in mid-infrared band, SNF@TiO2 aerogel with high stability efficient was constructed using nanosilk titanium dioxide. The hierarchical structure stores more air, which reduces thermal conductivity (0.0333 W·m–1·K–1) gain. TiO2 provides excellent UV resistance while increasing solar reflectance atmospheric window emissivity. average IR were 89.4 92.3%, respectively. Compared subambient (I: 800 W·m–2, PE-covered air) temperature, temperature under direct reached 11.5 °C. Meanwhile, outdoor 900 drop 12.1 °C after (40 mW·cm–2) continuous radiation for 10 days (6 h per day), displaying highly stable properties. In addition, has good mechanical elasticity insulation This study offers great potential silk fiber materials management.

Language: Английский

Citations

0
New Mcconnellite Ceramic Pigment as a Selective Solar Absorber: Effects of Microwave Firing and Rare Earth Doping DOI Open Access
G. Monrós,

J. Badenes,

Carolina Barrientos Delgado

et al.

Materials, Journal Year: 2025, Volume and Issue: 18(7), P. 1520 - 1520

Published: March 28, 2025

CuCrO2 (mcconnellite) was synthesized using both the solid-state method and microwave dielectric firing. It characterized as a novel black ceramic pigment for use in various industrial glazes. For first time, application of mcconnellite (CuCrO2) its coloured glazes selective solar absorbers (SSA) integral collectors has been reported. The addition quartz or anatase colour modifiers investigated to prevent bluing Zn-containing glazes, phenomenon associated with exsolution copper. Furthermore, doping lanthanide oxides explored address two key challenges: controlling formation pinhole defects porcelain which are linked destabilization Cu+, adjusting IR cut-off wavelength improve performance SSA.

Language: Английский

Citations

0
A Comprehensive Analysis of Thermal Heat Dissipation for Lithium-Ion Battery Packs DOI Creative Commons

Xuguang Zhang,

H. Y. Zhang,

Amjad S. Almansour

et al.

Energies, Journal Year: 2025, Volume and Issue: 18(9), P. 2234 - 2234

Published: April 28, 2025

Effective thermal management is essential for the safe and efficient operation of lithium-ion battery packs, particularly in compact, airflow-sensitive applications such as drones. This study presents a comprehensive analysis 16-cell pack by exploring seven geometric configurations under airflow speeds ranging from 0 to 15 m/s integrating nano-carbon-based phase change materials (PCMs) enhance heat dissipation. A Computational Fluid Dynamics (CFD) approach was employed using Ansys Discovery Workbench 2024 R1 simulate transfer processes with high spatial resolution. Using high-fidelity 3D simulations, we found that trapezoidal wide-base configuration, combined 5-inlet 1-outlet design, achieved most balanced cooling performance across all speed regimes. configuration maintained temperatures within optimal operating range (∼45 °C) both low- high-speed conditions, maximum temperature reduction up 8.3 °C compared standard square configuration. Additionally, PCM integration extended regulation duration approximately 12.5 min, effectively buffering spikes during peak loads. These findings underscore critical role CFD-driven optimization advanced material designing high-efficiency, compact systems energy-dense drones portable electronics.

Language: Английский

Citations

0
Assessment of a Top and Bottom Cooling Strategy for Prismatic Lithium-Ion Cells Intended for Automotive Use DOI Creative Commons
Said Madaoui, Bartłomiej Guzowski, Roman Gozdur

et al.

Batteries, Journal Year: 2024, Volume and Issue: 10(11), P. 403 - 403

Published: Nov. 15, 2024

In contemporary vehicle applications, lithium-ion batteries have become a leading option among the diverse array of battery technologies available. This preference is attributed to their advantageous properties, which include low self-discharge rates and no memory effect. Despite these benefits, are not without challenges. The key issues restricted driving range, concerns regarding longevity, safety risks, prolonged charging durations. Efforts aimed at minimizing duration frequently entail introduction elevated currents into battery, practice that can significantly elevate its temperature and, in turn, diminish operational lifespan. Generally, packs electric vehicles equipped with flat cooling plates located on side or bottom surfaces, also serve dual purpose providing heating colder conditions. Nevertheless, this configuration faces difficulties during fast may efficiently heat cool batteries. work, novel thermal management approach proposed, module cooled only plate but using another contact busbars, top module. simulations experimental tests show new demonstrates significant improvements. time constant reduced by 47%, enabling faster Additionally, maximum reached lowered 6 °C compared conventional approach. configuration, acts as bridge. advantage promotes homogenization within As result, it supports an even aging process batteries, ensuring longevity optimal performance.

Language: Английский

Citations

0