Next Energy最新文献_第7页

Enhancing passive cooling of photovoltaic modules using bio-based eutectic phase change materials and barium sulphate radiative cooling paint 利用生物基共晶相变材料和硫酸钡辐射冷却涂料增强光伏组件的被动冷却

Next Energy Pub Date : 2026-01-01 Epub Date: 2025-12-17 DOI: 10.1016/j.nxener.2025.100490

Zhen Wei Ko , Annas Wiguno , Jerry Joynson , Matthew J. Ashfold , Ianatul Khoiroh

{"title":"Enhancing passive cooling of photovoltaic modules using bio-based eutectic phase change materials and barium sulphate radiative cooling paint","authors":"Zhen Wei Ko , Annas Wiguno , Jerry Joynson , Matthew J. Ashfold , Ianatul Khoiroh","doi":"10.1016/j.nxener.2025.100490","DOIUrl":"10.1016/j.nxener.2025.100490","url":null,"abstract":"<div><div>The global shift toward renewable energy has intensified the need to improve photovoltaic (PV) efficiency, particularly in tropical climates where elevated temperatures degrade performance. This study evaluates 2 passive cooling methods, bio-based phase change materials (PCMs) and barium sulphate (BaSO₄) radiative cooling paint to mitigate PV overheating. Two eutectic PCM mixtures, lauric acid/oleic acid (LA/OA) and lauric acid/capric acid (LA/CA), were characterized via differential scanning calorimetry, revealing latent heats of 120.1 J/g and 172.1 J/g, respectively. Under simulated solar irradiance of 800 W/m², PCM-integrated panels demonstrated significant thermal regulation, with the LA/CA system reducing peak temperatures by 18.3 °C vs. the reference panel and improving power output by 26.0%. In contrast, radiative cooling paint applied to panel frames or side-mounted heat sinks lowered temperatures by up to 6.1 °C but unexpectedly reduced power generation due to power dissipation, highlighting a trade-off between thermal and electrical performance. The LA/CA PCM emerged as the superior solution for tropical climates, offering sustained cooling and enhanced efficiency, while paint formulations require further optimization to avoid compromising light absorption. This study provides critical insights into passive cooling strategies, emphasizing the importance of holistic performance evaluation for real-world PV applications.</div></div>","PeriodicalId":100957,"journal":{"name":"Next Energy","volume":"10 ","pages":"Article 100490"},"PeriodicalIF":0.0,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145790219","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Next Energy Pub Date : 2026-01-01

引用次数: 0

Flexible hosting capacity: Integrating electric vehicles, photovoltaics, and battery energy storage into distribution grid planning in New England 灵活的托管能力：将电动汽车、光伏和电池储能整合到新英格兰的配电网规划中

Next Energy Pub Date : 2026-01-01 Epub Date: 2025-12-26 DOI: 10.1016/j.nxener.2025.100495

Sergio Freeman, Ertan Agar

{"title":"Flexible hosting capacity: Integrating electric vehicles, photovoltaics, and battery energy storage into distribution grid planning in New England","authors":"Sergio Freeman, Ertan Agar","doi":"10.1016/j.nxener.2025.100495","DOIUrl":"10.1016/j.nxener.2025.100495","url":null,"abstract":"<div><div>Transportation electrification and the rapid deployment of distributed energy resources (DERs), including photovoltaics and battery energy storage systems, are transforming distribution grid operations. Traditional static hosting capacity assessments often fail to capture the dynamic, stochastic behavior of high DER penetrations, particularly when electric vehicles are integrated. This study applies a dynamic hosting capacity framework to a representative New England feeder using time-series simulations across five DER scenarios: baseline, unmanaged, time-of-use pricing, DER management systems (DERMS), and DERMS + vehicle-to-grid (V2G). Results reveal that unmanaged DERs more than double the factor of accelerated aging (FAA) in 18% of transformers and cause feeder voltage violations in 6.7% of operating hours. In contrast, DERMS coordination reduces voltage violations by 93% and FAA by over 50%. Hosting capacity increases from 25% under unmanaged conditions to 60% with DERMS + V2G. Dynamic hosting margin analysis indicates operational headroom rising from 18% (unmanaged) to over 40% (DERMS + V2G), with voltage regulator tap changes falling by 38% and reverse power flow events falling by 67%. These findings demonstrate that active coordination and V2G integration can substantially expand DER hosting capacity and enhance grid resilience without immediate infrastructure upgrades.</div></div>","PeriodicalId":100957,"journal":{"name":"Next Energy","volume":"10 ","pages":"Article 100495"},"PeriodicalIF":0.0,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145839457","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Policy impacts on bioenergy development: Cross-country evidence based on analysis 政策对生物能源发展的影响：基于分析的跨国证据

Next Energy Pub Date : 2026-01-01 Epub Date: 2025-12-27 DOI: 10.1016/j.nxener.2025.100494

D. Rajanikant, M. Premalatha, Prabhat Bhuddha Dev S, N. Anantharaman

{"title":"Policy impacts on bioenergy development: Cross-country evidence based on analysis","authors":"D. Rajanikant, M. Premalatha, Prabhat Bhuddha Dev S, N. Anantharaman","doi":"10.1016/j.nxener.2025.100494","DOIUrl":"10.1016/j.nxener.2025.100494","url":null,"abstract":"<div><div>The bioenergy sector is rapidly evolving, driven by sustainable policies. The study presents a comparative evaluation of bioenergy development across 6 countries: Brazil, Sweden, the United States, Japan, Canada, and Colombia, spanning the period from 2013 to 2022. It highlights key milestones and policy frameworks that have shaped national trajectories. Brazil has established itself as a global leader in biofuel production by capitalizing on its favorable climate, vast agricultural resources, and advanced ethanol and biodiesel technologies. Sweden focuses on long-term energy security through waste-to-energy projects, second-generation biofuels, and carbon-neutral initiatives. The U.S. expands bioenergy through R&D and diverse biofuel feedstocks. Japan has significantly advanced its bioenergy capabilities by implementing cutting-edge waste-to-energy solutions, developing algae-based biofuels, and promoting public-private partnerships to address feedstock limitations. Canada has made notable progress in utilizing biomass and agricultural residues despite geographical challenges, with British Columbia showing great potential for further expansion. Meanwhile, Colombia, still in the early stages of bioenergy growth, is gradually strengthening its industry by focusing on biogas and bioethanol production from sugarcane. Collectively, these countries demonstrate how strategic policy frameworks and effective implementation of sustainable practices have shaped the development of bioenergy. The observed trends highlight the sector’s potential to contribute to climate change mitigation, energy security, and sustainable economic growth.</div></div>","PeriodicalId":100957,"journal":{"name":"Next Energy","volume":"10 ","pages":"Article 100494"},"PeriodicalIF":0.0,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145839456","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Waste-to-hydrogen production: Recycling aluminium dross in alkali solutions 废物制氢：在碱溶液中回收铝渣

Next Energy Pub Date : 2026-01-01 Epub Date: 2026-01-02 DOI: 10.1016/j.nxener.2025.100498

Ankur Srivastava, Arunabh Meshram

{"title":"Waste-to-hydrogen production: Recycling aluminium dross in alkali solutions","authors":"Ankur Srivastava, Arunabh Meshram","doi":"10.1016/j.nxener.2025.100498","DOIUrl":"10.1016/j.nxener.2025.100498","url":null,"abstract":"<div><div>The valorisation of aluminium dross for hydrogen production offers a sustainable waste-to-energy pathway. This study examines hydrogen evolution from aluminium dross in aqueous NaOH and KOH (0.25–1.0 M) at 40–70 °C, measuring it as a function of time and using 3D contour mapping to determine initial rates and cumulative yields. Hydrogen evolution rises with alkali concentration and temperature; NaOH produces higher rates and volumes at lower conditions, while KOH exhibits steadier temperature-driven increases. The kinetic study reveals that the Avrami-Erofeyev model provides the best fit to the experimental data, showing excellent linearity (R<sup>2</sup> = 0.95–0.99). The calculated reaction orders (n = 0.88–1.23) indicate a near first-order behaviour consistent with nucleation-growth mechanisms. Arrhenius analysis gives activation energies of 63.07 kJ/mol (0.5 M NaOH) and 73.62 kJ/mol (0.5 M KOH), highlighting differing mechanistic regimes. This work frames dross recycling as a strategy to convert hazardous residue into low-carbon fuel, advocating integration of such benign hydrogen-generation routes into industrial design and policy to close material loops and enhance resilience.</div></div>","PeriodicalId":100957,"journal":{"name":"Next Energy","volume":"10 ","pages":"Article 100498"},"PeriodicalIF":0.0,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145883692","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A key review of geothermal heat pumps: Exergoeconomic and environmental aspects with prospects for further development 地源热泵的主要综述：工作、经济和环境方面以及进一步发展的前景

Next Energy Pub Date : 2026-01-01 Epub Date: 2025-11-25 DOI: 10.1016/j.nxener.2025.100482

Asli Tiktas , Arif Hepbasli

{"title":"A key review of geothermal heat pumps: Exergoeconomic and environmental aspects with prospects for further development","authors":"Asli Tiktas , Arif Hepbasli","doi":"10.1016/j.nxener.2025.100482","DOIUrl":"10.1016/j.nxener.2025.100482","url":null,"abstract":"<div><div>A comprehensive analysis of geothermal heat pumps (GHPs) was conducted, emphasizing their technoeconomic, exergoeconomic, and environmental aspects apart from previous literature studies. A thorough, extended literature review was performed to identify the latest trends, challenges, and innovations in GHP technology. This study's novelty is in its multifaceted evaluation of GHP systems, integrating exergoeconomic analysis with a broader environmental impact assessment, an area largely underexplored in previous research. Significant improvements in system performance were observed through incorporating additional heat sources like wind turbines, solar thermal panels, and organic Rankine cycle systems. These integrations resulted in notable enhancements in performance efficiency (COP), heating load production, and overall seasonal efficiency, with COP increases of up to 56.92% and heating load improvements of up to 77.8%. Moreover, the environmental impact of hybrid systems was reduced, with substantial decreases in <span><math><mrow><mi>C</mi><msub><mrow><mi>O</mi></mrow><mrow><mn>2</mn></mrow></msub></mrow></math></span> emissions and other pollutants. A novel modified bibliometric analysis was also developed, revealing gaps in the literature, particularly in the need for advanced exergy analysis and the optimization of hybrid GHP systems for various geographic regions. Interest in GHP research has significantly increased over the past decade. Despite these advances, challenges remain in addressing installation costs, system complexity, and efficiency variations across different climates. This study introduces unique recommendations for optimizing hybrid configurations, reducing installation costs, improving energy storage, and developing adaptive control systems—all of which represent significant contributions to the field.</div></div>","PeriodicalId":100957,"journal":{"name":"Next Energy","volume":"10 ","pages":"Article 100482"},"PeriodicalIF":0.0,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145617896","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Solar PV in the 21st century: Aligning technological growth with sustainability 21世纪的太阳能光伏：使技术增长与可持续性保持一致

Next Energy Pub Date : 2026-01-01 Epub Date: 2026-01-10 DOI: 10.1016/j.nxener.2025.100499

Yanqiu Zhang

{"title":"Solar PV in the 21st century: Aligning technological growth with sustainability","authors":"Yanqiu Zhang","doi":"10.1016/j.nxener.2025.100499","DOIUrl":"10.1016/j.nxener.2025.100499","url":null,"abstract":"<div><div>The escalating energy crisis and climate change necessitate a rapid transition to renewable energy, with solar photovoltaic (PV) technology emerging as a pivotal solution. This paper highlights the dual role of solar PV in reducing carbon emissions and enhancing energy security. It outlines the rapid, policy-driven expansion of solar PV in China, where installed capacity increased significantly from 43 GW in 2015 to 887 GW in 2024. A comparative analysis of PV deployment patterns and trends in the United States, India, and Brazil is also provided. The study further points out several challenges pertaining to geopolitical risks within critical mineral supply chains, the sustainable recycling of end-of-life PV modules, land-use conflicts, grid management, and durability that may impede the sustainability of solar PV. Furthermore, corresponding policy incentives, technological innovation, diversifying solar PV supply chains, multilateral cooperation, and circular principles are discussed to overcome these challenges; strategic integration of desert deployment, floating PV systems, and agrivoltaics exemplifies a spatially diversified approach to resolving land-energy conflicts. The paper further proposes a comprehensive sustainability framework for solar PV, emphasizing that factors such as maintaining policy stability and adaptive regulatory frameworks, assessments of lifecycle environmental impacts, and ensuring justice and equity in the energy transition are pivotal to achieving long-term sustainability. By aligning technological advancements with adaptive policies, solar PV can transition from exponential growth to sustainability, offering a viable pathway toward global carbon neutrality and resilient energy systems.</div></div>","PeriodicalId":100957,"journal":{"name":"Next Energy","volume":"10 ","pages":"Article 100499"},"PeriodicalIF":0.0,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145924312","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Assessment of performance, combustion, and emission characteristics of a diesel engine fueled with novel emulsions of cattle dung bio-oil in diesel stabilized by biodiesel 以新型牛粪生物油乳剂为燃料的柴油发动机的性能、燃烧和排放特性的评估

Next Energy Pub Date : 2026-01-01 Epub Date: 2025-12-18 DOI: 10.1016/j.nxener.2025.100492

Lovepreet Kaur , Jayant Singh , Alaknanda Ashok , Harveer Singh Pali , Sachin Kumar

{"title":"Assessment of performance, combustion, and emission characteristics of a diesel engine fueled with novel emulsions of cattle dung bio-oil in diesel stabilized by biodiesel","authors":"Lovepreet Kaur , Jayant Singh , Alaknanda Ashok , Harveer Singh Pali , Sachin Kumar","doi":"10.1016/j.nxener.2025.100492","DOIUrl":"10.1016/j.nxener.2025.100492","url":null,"abstract":"<div><div>Alternative renewable fuels are the need of the hour due to limited petroleum fuel sources and environmental degradation caused by emissions. This study aims to evaluate the feasibility of utilizing cattle dung bio-oil (CDBO) microemulsions as an alternative fuel in compression ignition engines by investigating their production, stability, performance, combustion, and emission characteristics. CDBO was produced through fast pyrolysis under optimized conditions and blended with high-speed diesel (HSD) using castor oil methyl ester as an additive to prepare stable microemulsions containing 5–20% bio-oil by volume. The experimental objectives included characterization of the bio-oil, development of microemulsions, and assessment of their influence on engine performance, combustion parameters, and emission profiles. The engine testing was conducted on a single-cylinder, 4-stroke, water-cooled, direct-injection diesel engine (Kirloskar AVI, 5 hp/3.73 kW) coupled with an eddy current dynamometer. The setup was equipped with sensors and transducers to measure all required parameters. The findings indicated that the microemulsions having 20% bio-oil exhibited higher brake specific energy consumption (BSEC) (16.4%) and lower brake thermal efficiency (13.2%) than that of diesel, while the brake power remained almost the same at full loads. The microemulsion fuels produced significantly lower carbon monoxide (27%) and hydrocarbon emissions (41.5%), and the temperature of exhaust gas was higher (10.4%). At high loads, the microemulsions generated 23.5% lower smoke emissions than HSD. The ignition delay was the same as for diesel operation at higher loads, while the cylinder peak pressure was 6.4% higher than that of diesel.</div></div>","PeriodicalId":100957,"journal":{"name":"Next Energy","volume":"10 ","pages":"Article 100492"},"PeriodicalIF":0.0,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145790218","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A hybrid CFD-neural network framework for the early prediction of longitudinal thermo-acoustic instabilities in hydrogen-fueled gas turbine combustors 用于氢燃料燃气轮机燃烧室纵向热声不稳定性早期预测的混合cfd -神经网络框架

Next Energy Pub Date : 2026-01-01 Epub Date: 2025-12-31 DOI: 10.1016/j.nxener.2025.100497

Oyinbonogha Fred Agonga , Norazila Othman , Mohd Fairus Mohd Yasin

引用次数: 0

A novel approach for battery longevity through controlled surface lithium concentration gradient 一种通过控制表面锂浓度梯度提高电池寿命的新方法

Next Energy Pub Date : 2026-01-01 Epub Date: 2025-11-11 DOI: 10.1016/j.nxener.2025.100473

Kasim (Kaz) A. Adewuyi

{"title":"A novel approach for battery longevity through controlled surface lithium concentration gradient","authors":"Kasim (Kaz) A. Adewuyi","doi":"10.1016/j.nxener.2025.100473","DOIUrl":"10.1016/j.nxener.2025.100473","url":null,"abstract":"<div><div>One of the key challenges in battery degradation is mechanical failure, such as cracks and delamination, caused by stress from lithium concentration gradients inside active particles. In conventional charging protocols, such as constant current constant voltage (CCCV) charging, the concentration gradient and corresponding stress levels vary, and reaching critical levels can lead to mechanical failure. This paper introduces a new charging methodology called constant gradient constant voltage (CGCV), which regulates the charging current to maintain a constant lithium gradient at the surface of active particles, thereby limiting stress development and mechanical crack propagation. To control the concentration gradient, factors such as charging current, lithium diffusivity, and particle geometry must be considered.</div><div>Two scenarios are considered to demonstrate CGCV effectiveness. For scenario 1, the CGCV shows a significant reduction in charging time, with a 50% reduction compared to 0.1 C CCCV, while exhibiting slightly slower degradation rates. In scenario 2, 0.5 C CCCV, which has roughly equivalent charging time to CGCV, shows significantly more capacity fade; it takes CCCV 66 cycles for 20% capacity fade, while CGCV takes 100 cycles to reach only a 12% capacity fade. These 2 scenarios show that the CGCV methodology effectively mitigates degradation while shortening charging time.</div></div>","PeriodicalId":100957,"journal":{"name":"Next Energy","volume":"10 ","pages":"Article 100473"},"PeriodicalIF":0.0,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145521073","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0