Renewable Energy最新文献_第9页

Enhanced activity and stability in microwave steam reforming of tar with TiO2-coated zeolitic imidazole framework-67 derived Co/C 用tio2包覆沸石咪唑骨架-67衍生Co/C提高微波蒸汽重整焦油的活性和稳定性

IF 9.1 1区工程技术 Q1 ENERGY & FUELS

Renewable Energy

Pub Date : 2026-01-09 DOI: 10.1016/j.renene.2026.125248

Yuechi Che , Tianxiao Yu , Ying Bai , Ziwei Xue , Beibei Yan , Xuemei Fu , Jian Li , Guanyi Chen

Microwave steam reforming using carbon-based catalyst presents a promising solution for tar elimination in biomass gasification, crucial for renewable syngas production toward heating, electricity, and value-added chemicals. However, activated-steam-induced catalyst deactivation remains challenging. Herein, a ZIF-67-derived core-shell Co/C-TiO₂ catalyst was engineered via tailored TiO₂ hydrophilicity and structural protection. Catalytic performance exhibited a volcano-type trend versus TiO₂ shell thickness. The optimal catalyst (Co/C-T2) achieves a 96.62 % toluene conversion rate and a 72.17 % carbon conversion rate at 550 °C, sustaining >87.61 % efficiency over 6 h. Structural characterizations revealed the core-shell architecture transformed carbon-supported Co(111) structure into anatase TiO₂(101)-stabilized Co₃O₄(311) configuration, significantly enhancing surface basicity and oxygen species density. DFT-based molecular dynamics simulations further elucidated the mechanism by demonstrating reduced adsorption and dissociation energy barriers for H₂O molecules, which facilitate steam activation in the reforming process. However, excessive TiO₂ coating induces diffusion limitations at the reactant/metal active site interface, coupled with coking-induced pore occlusion, consequently triggering significant deterioration in catalytic activity and stability. This work establishes a facile modification paradigm for developing microwave-responsive carbon catalysts while providing fundamental insights into the structure-activity relationships of core-shell systems in heterogeneous catalysis. These findings offer practical guidance for designing advanced catalysts in sustainable energy conversion applications.

使用碳基催化剂的微波蒸汽重整为生物质气化中的焦油消除提供了一个很有前途的解决方案，这对于可再生合成气生产用于加热，电力和增值化学品至关重要。然而，活化蒸汽诱导的催化剂失活仍然是一个挑战。本文通过定制TiO2的亲水性和结构保护，设计了一种由zif -67衍生的核壳型Co/C-TiO2催化剂。催化性能随TiO2壳厚呈火山型变化趋势。最佳催化剂（Co/C- t2）在550℃下的甲苯转化率为96.62%，碳转化率为72.17%，在6 h内的效率为87.61%。结构表征表明，核壳结构将碳负载的Co（111）结构转化为钛矿型TiO2（101）稳定的Co3O4（311）结构，显著提高了表面碱度和氧密度。基于dft的分子动力学模拟进一步阐明了机理，证明了H2O分子的吸附和解离能垒降低，从而促进了重整过程中的蒸汽活化。然而，过量的TiO2涂层会导致反应物/金属活性位点界面处的扩散受限，再加上结焦引起的孔堵塞，从而导致催化活性和稳定性的显著下降。这项工作为开发微波响应碳催化剂建立了一个简单的修饰范例，同时为多相催化中核-壳系统的结构-活性关系提供了基本的见解。这些发现为设计可持续能源转化应用中的先进催化剂提供了实践指导。

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引用次数: 0

Fast annual energy estimation for solar tower power systems based on heliostat grouping and solar position sampling 基于定日镜分组和太阳位置采样的太阳能塔式发电系统年能量快速估计

IF 9.1 1区工程技术 Q1 ENERGY & FUELS

Renewable Energy

Pub Date : 2026-01-09 DOI: 10.1016/j.renene.2026.125243

Zengqiang Liu , Yuhong Zhao , Jieqing Feng

A three-level acceleration method to significantly improve the efficiency of annual energy estimation for solar power tower systems is proposed in this study. The first level reduces memory consumption and accelerates computation by discretizing the receiver surface into strips in Monte Carlo ray tracing flux spot simulation. The second level estimates the instantaneous optical efficiency of the heliostat field by grouping heliostats and simulating only one representative heliostat per group. Three grouping methods are explored: Recursive Binary Tree Grouping, K-means Grouping, and Uniform Grouping. The third level reduces the number of required simulation time points by sampling solar positions in the equatorial coordinate system and exploring B-spline or Radial Basis Functions to approximate the instantaneous optical efficiency. The proposed method is demonstrated using PS10 and Gemasolar heliostat field cases. Results show that the proposed method estimates the annual energy of the PS10 field in 2.921 s with a 329 times speedup within a 0.019% annual energy power error. For the Gemasolar field, it achieves a 1283 times speedup in 5.153 s with a 0.050% annual energy power error, demonstrating its potential for heliostat layout optimization and related applications.

本文提出了一种三阶加速方法，可显著提高太阳能发电塔系统年能量估算的效率。在蒙特卡罗射线追踪磁通点模拟中，第一级通过将接收面离散成条来减少内存消耗并加快计算速度。第二层通过对定日镜进行分组，每组只模拟一个具有代表性的定日镜，来估计定日镜场的瞬时光学效率。探讨了三种分组方法：递归二叉树分组、k -均值分组和统一分组。第三层通过在赤道坐标系中采样太阳位置，并探索b样条或径向基函数来近似瞬时光学效率，从而减少所需的模拟时间点数量。利用PS10和Gemasolar定日镜现场实例对该方法进行了验证。结果表明，该方法在2.921 s内估计了PS10场的年能量，在0.019%的年能量功率误差范围内，加速了329倍。在Gemasolar油田，它在5.153秒内实现了1283倍的加速，年能量误差为0.050%，这表明了它在定日镜布局优化和相关应用中的潜力。

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引用次数: 0

Investigation on co-pyrolysis polygeneration of municipal solid waste and heavy bio-oil of pine wood based on response surface methodology 基于响应面法的城市生活垃圾与松木重质生物油共热解多产研究

IF 9.1 1区工程技术 Q1 ENERGY & FUELS

Renewable Energy

Pub Date : 2026-01-09 DOI: 10.1016/j.renene.2026.125209

Kenhui Cen, Xiaoran Li, Ziyu Gan, Hong Zhang, Dengyu Chen

This study investigates the co-pyrolysis of municipal solid waste (MSW) and heavy bio-oil (HB) to optimize product distribution and energy recovery. Response surface methodology (RSM) was employed to correlate the yields and higher heating values (HHVs) of syngas, tar, and biochar with three controlling factors—temperature, residence time, and HB proportion. The findings demonstrated that the synergy between MSW and HB enhanced both the syngas yield (peaking at 38.53 wt% under 800 °C, 17.5 min, 0 % HB) and the biochar yield (peaking at 23.8 wt% under 400 °C, 17.5 min, 12.5 % HB) while reducing the tar yield (peaking at 89 wt% under 600 °C, 5 min, and 100 % HB). Temperature and time positively influenced gas generation and energy content, whereas excessive HB addition inhibited gas formation. The optimized parameters demonstrated strong agreement between predicted and experimental values, confirming the reliability of the RSM model. This work provides valuable guidance for the resource utilization of urban organic solid waste and the production of clean fuels through co-pyrolysis.

研究了城市生活垃圾（MSW）和重质生物油（HB）的共热解，以优化产品分配和能量回收。采用响应面法（RSM）研究了合成气、焦油和生物炭的产率和高热值与温度、停留时间和HB比例三个控制因素之间的关系。研究结果表明，MSW和HB之间的协同作用提高了合成气产量（在800°C， 17.5 min， 0% HB下达到38.53 wt%）和生物炭产量（在400°C， 17.5 min， 12.5% HB下达到23.8 wt%），同时降低了焦油产量（在600°C， 5 min， 100% HB下达到89 wt%）。温度和时间正影响气体的生成和能量含量，而过量的HB添加抑制气体的形成。优化后的参数预测值与实验值吻合较好，验证了RSM模型的可靠性。该研究为城市有机固体废物资源化利用和共热解生产清洁燃料提供了有价值的指导。

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引用次数: 0

Porous cubic ZnSnO3 nanocatalysts designed via DC-glow non-thermal plasma-boosted and corn starch derived carbon-template induced co-precipitation manner: Enhanced esterification of oleic acid 采用直流辉光非热等离子体增强和玉米淀粉衍生碳模板诱导共沉淀法设计多孔立方ZnSnO3纳米催化剂：增强油酸的酯化反应

IF 9.1 1区工程技术 Q1 ENERGY & FUELS

Renewable Energy

Pub Date : 2026-01-09 DOI: 10.1016/j.renene.2026.125191

Ali Mohammadi , Mohammad Haghighi , Maryam Shabani , Omid Mohammadi Vaniar

Novel porous cubic ZnSnO₃ nanocatalysts designed via co-precipitation manner boosted with corn starch derived carbon-template and DC-glow non-thermal plasma was evaluated as an acidic catalyst in biodiesel production by esterification process. The characterization of the nanocatalysts modified by corn starch derived carbon-template and DC-glow non-thermal plasma technology was performed using XRD, FESEM, BET-BJH, TPD-NH₃, 3D texture analysis, TEM and HRTEM techniques. The results showed that the novel modified sample via 10 wt% corn starch derived carbon-template (ZSO (HT = 10 %)), used for the first time in biofuel production, exhibited the best activity (84.8 %). its plasma-treated form (ZSO(HT = 10 %)-P) achieved the highest conversion (90.2 %) in oleic acid esterification. Corn starch derived carbon-template and DC-glow non-thermal plasma have a significant impact on the morphology of ZnSnO₃. The sample ZSO(HT = 10 %)-P, in comparison with unmodified ZSO, exhibited higher macropore density, macropore volume (0.2004 cm³/g), mean pore diameter (37.8 nm), and density of acidic sites (17.2 μmol/m²). Also, during 5 periods of repeated use of (ZSO(HT = 10 %)-P), its structure and morphology remained unchanged without any drop in conversion percentage. Finally, the proposed simplified kinetic model and reaction mechanism were investigated and optimized by genetic algorithm across different temperatures and reaction times.

采用玉米淀粉碳模板和直流辉光非热等离子体共沉淀法设计了新型多孔立方ZnSnO3纳米催化剂，并对其作为酯化法制备生物柴油的酸性催化剂进行了研究。采用XRD、FESEM、BET-BJH、TPD-NH3、3D织构分析、TEM和HRTEM等技术对玉米淀粉碳模板和DC-glow非热等离子体技术改性的纳米催化剂进行表征。结果表明，首次应用于生物燃料生产的10 wt%玉米淀粉衍生碳模板（ZSO (HT = 10%)）改性后的样品活性最高（84.8%）。其等离子体处理形式（ZSO(HT = 10%)-P）在油酸酯化反应中转化率最高（90.2%）。玉米淀粉碳模板和直流发光非热等离子体对ZnSnO3的形貌有显著影响。与未改性的ZSO相比，改性后的ZSO(HT = 10%)-P样品具有更高的大孔密度、大孔体积（0.2004 cm3/g）、平均孔径（37.8 nm）和酸性位点密度（17.2 μmol/m2）。在5次重复使用（ZSO(HT = 10%)-P）期间，其结构和形态保持不变，转化率没有下降。最后，利用遗传算法对所提出的简化动力学模型和反应机理进行了研究，并对不同温度和反应时间下的反应机理进行了优化。

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引用次数: 0

High-efficiency hybrid MPPT technique with integrated partial shading detection for photovoltaic systems under varying shading conditions 不同遮阳条件下光伏系统部分遮阳综合检测的高效混合MPPT技术

IF 9.1 1区工程技术 Q1 ENERGY & FUELS

Renewable Energy

Pub Date : 2026-01-09 DOI: 10.1016/j.renene.2026.125244

Nursultan Koshkarbay , Karam Khairullah Mohammed , Saad Mekhilef , Nurzhigit Kuttybay , Ahmet Saymbetov , Madiyar Nurgaliyev , Nurdaulet Kalassov

This paper proposes a hybrid maximum power point tracking algorithm for photovoltaic systems, combining the dichotomy method with the Weighted Superposition Attraction algorithm. Weighted Superposition Attraction uses the superposition principle and an attraction-repulsion mechanism to perform global optimization under complex conditions. Under uniform shading conditions, where a single global maximum power point exists, the dichotomy algorithm efficiently converges to the optimum via a stepwise search. A delta-coefficient-based shading-detection method is introduced that requires no PV panel parameters. If the delta threshold exceeds 2, the system is classified as a uniform shading condition, and the dichotomy method is applied; otherwise, partial shading conditions are detected, and Weighted Superposition Attraction is used. Experiments with a boost converter show high dynamic performance and stability, achieving average tracking efficiencies of 99.63 % for dichotomy and 99.76 % for Weighted Superposition Attraction with convergence times of 0.51 s and 0.53 s, respectively. The hybrid algorithm reliably locates the global maximum power point under rapid irradiance changes and closely spaced local maximums.

将二分法与加权叠加吸引算法相结合，提出了一种光伏系统最大功率点的混合跟踪算法。加权叠加吸引利用叠加原理和吸引-排斥机制在复杂条件下进行全局优化。在均匀阴影条件下，存在一个全局最大功率点，二分算法通过逐步搜索有效地收敛到最优。介绍了一种不需要光伏板参数的基于delta系数的遮阳检测方法。如果delta阈值超过2，则将系统分类为均匀遮阳条件，并应用二分法；否则，检测部分遮阳条件，并使用加权叠加吸引。实验结果表明，升压变换器具有良好的动态性能和稳定性，二分法和加权叠加吸引的平均跟踪效率分别为99.63%和99.76%，收敛时间分别为0.51 s和0.53 s。该算法在辐照度变化快、局部最大值间隔近的情况下，能够可靠地定位全局最大功率点。

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引用次数: 0

Comprehensive sustainability assessment and emergy analysis of a combined cooling, heating and power system integrated with high-temperature solar thermochemical complementation and low-temperature solar thermal collection processes 结合高温太阳能热化学互补和低温太阳能热收集工艺的冷热电联产系统的综合可持续性评价和能量分析

IF 9.1 1区工程技术 Q1 ENERGY & FUELS

Renewable Energy

Pub Date : 2026-01-09 DOI: 10.1016/j.renene.2026.125212

Qiushi Wang , Liqiang Duan , Chaoyun Yang , Haozeng Zhao , Luyao Liu , Hanfei Zhang , Nan Zheng , Xingqi Ding

Combined cooling, heating, and power (CCHP) systems integrated with solar energy have garnered widespread attention because of their superior efficiency, cleanliness, economy, and reliability, making them a hotspot of current research. However, few studies have involved sustainability assessment and emergy analysis. This research constructs a novel solar-assisted CCHP (SACCHP) system that integrates a high-temperature solar thermochemical process and a low-temperature solar heat collection process. Taking a solid oxide fuel cell-micro gas turbine as the core prime mover, both a double-effect lithium bromide chiller and a heat exchanger are used to recover the waste heat of flue gas exhausted from micro gas turbine, thus realizing the comprehensive complementarity of renewable energy and fossil energy and the cascade utilization of energy. A quantitative sustainability evaluation model is established to comprehensively assess the system's overall sustainability index from thermodynamic, economic, environmental, and reliability perspectives by using the information entropy method. The results indicate that the SACCHP system achieves the highest comprehensive sustainability index of 0.646 when the high-temperature solar collector area accounts for 75 % of the total. An emergy analysis is conducted for the SACCHP system under this scenario and compared with a traditional CCHP (TCCHP) system without solar integration. The results indicate that the SACCHP system significantly outperforms the TCCHP system in all emergy indicators. Specifically, the environmental sustainability index of the SACCHP system is 0.72, greater than that of TCCHP system, demonstrating the great sustainability of the SACCHP system.

与太阳能相结合的冷热电联产系统因其高效、清洁、经济、可靠等优点而受到广泛关注，成为当前研究的热点。然而，涉及可持续性评价和能值分析的研究很少。本研究构建了一种新型的太阳能辅助CCHP （SACCHP）系统，该系统集成了高温太阳能热化学过程和低温太阳能集热过程。以固体氧化物燃料电池-微型燃气轮机为核心原动机，采用双效溴化锂制冷机和热交换器对微型燃气轮机排出的烟气余热进行回收，实现可再生能源与化石能源的综合互补和能源梯级利用。采用信息熵法，从热力学、经济、环境和可靠性四个方面综合评价系统的总体可持续性指标，建立了可持续性定量评价模型。结果表明：当高温太阳能集热器面积占系统总量的75%时，SACCHP系统的综合可持续性指数最高，为0.646；在此情况下，对SACCHP系统进行了能量分析，并与不集成太阳能的传统CCHP系统进行了比较。结果表明，SACCHP系统在所有能量指标上都明显优于TCCHP系统。具体而言，SACCHP系统的环境可持续性指数为0.72，大于TCCHP系统，表明SACCHP系统具有很强的可持续性。

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引用次数: 0

Comparative study of analytical and numerical solutions for the thermodynamic processes of compressed air energy storage reservoirs in abandoned mines 废弃矿井压缩空气蓄能器热力过程解析解与数值解的比较研究

IF 9.1 1区工程技术 Q1 ENERGY & FUELS

Renewable Energy

Pub Date : 2026-01-09 DOI: 10.1016/j.renene.2026.125245

Dong Tang , Jinhua Ma , Yijie Huang , Min Song , Yi Li , Zhongming Jiang

Efficient utilization of renewable energy demands strategies to manage fluctuations in generation and demand mismatches. Compressed air energy storage (CAES) offers a promising solution by compressing excess energy into air for storage and releasing it during peak demand. This study compares analytical and numerical solutions for thermodynamic processes in CAES reservoirs repurposed from abandoned mine tunnels. Using COMSOL finite element software, the thermodynamic behavior of compressed air was modeled under three heat transfer boundary conditions: adiabatic, constant temperature, and variable temperature walls. Results reveal substantial discrepancies in temperature and pressure distributions, with numerical simulations capturing pronounced non-uniformity and steep longitudinal gradients. Maximum temperatures from numerical solutions exceed analytical predictions, underscoring the risk of underestimating thermal variations with analytical methods alone. The analytical model demonstrates a critical failure in predicting local temperature hotspots in elongated geometries, fundamentally masking extreme thermal safety risks. These insights emphasize the need for numerical approaches in designing elongated reservoirs to accurately evaluate thermodynamic properties and material needs, optimizing CAES systems through abandoned mine repurposing.

有效利用可再生能源需求战略，以管理发电波动和需求不匹配。压缩空气储能（CAES）提供了一个很有前途的解决方案，它将多余的能量压缩到空气中进行存储，并在需求高峰时释放。本研究比较了废弃矿井改造CAES储层热力学过程的解析解和数值解。利用COMSOL有限元软件，在绝热壁、恒温壁和变温壁三种传热边界条件下，模拟了压缩空气的热力学行为。结果揭示了温度和压力分布的实质性差异，数值模拟捕获了明显的不均匀性和陡峭的纵向梯度。数值解的最高温度超过分析预测，强调了仅用分析方法低估热变化的风险。分析模型表明，在预测细长几何形状的局部温度热点方面存在严重缺陷，从根本上掩盖了极端的热安全风险。这些见解强调了在设计细长油藏时需要采用数值方法来准确评估热力学性质和材料需求，并通过废弃矿山的重新利用来优化CAES系统。

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引用次数: 0

Advancing biofuel economics through piggyback integration and earned profit sharing 通过背驮式整合和利润分享推进生物燃料经济

IF 9.1 1区工程技术 Q1 ENERGY & FUELS

Renewable Energy

Pub Date : 2026-01-08 DOI: 10.1016/j.renene.2026.125233

Sharon Hughes , Neha Shakelly , John W. Sutherland , Zhi Zhou

Biofuel production has the advantages of reduced dependence on fossil fuels and a lower environmental impact but has been hindered by high costs, infrastructure limitations, and market uncertainties. This study introduces a groundbreaking “piggyback” biorefinery model that uniquely integrates first-generation (1G), second-generation (2G), and third-generation (3G) biofuel technologies within a shared infrastructure framework. Unlike conventional integrated approaches, the novel method strategically leverages underutilized 1G capacity and seasonal downtime to host 2G and 3G operations, significantly reducing capital expenditures and carbon footprint while enhancing process efficiency. This study further advances the techno-economic analysis (TEA) methodology by incorporating earnings before interest, taxes, depreciation, and amortization (EBITDA) alongside breakeven pricing, enabling more accurate profitability assessments. The study also pioneers an earned profit sharing (EPS) mechanism to stabilize feedstock costs and align stakeholder incentives, offering a practical pathway to de-risk investment in biofuels. Using Belize in Central America as a case study, this TEA demonstrates up to 33 % cost reduction and substantial lifecycle emission savings compared with standalone facilities. The framework presented here establishes an interim benchmark for evaluating multi-generation integrated biorefineries and provides actionable insights for accelerating the commercial viability of sustainable biofuels.

生物燃料生产具有减少对化石燃料依赖和对环境影响较小的优点，但受到高成本、基础设施限制和市场不确定性的阻碍。本研究介绍了一种开创性的“背带式”生物精炼模式，该模式独特地将第一代（1G）、第二代（2G）和第三代（3G）生物燃料技术集成在一个共享的基础设施框架内。与传统的集成方法不同，这种新方法战略性地利用未充分利用的1G容量和季节性停机时间来托管2G和3G业务，在提高流程效率的同时显著降低了资本支出和碳足迹。本研究通过将利息、税项、折旧和摊销前收益（EBITDA）与盈亏平衡定价相结合，进一步推进了技术经济分析（TEA）方法，从而实现更准确的盈利能力评估。该研究还开创了一种利润分享机制，以稳定原料成本和协调利益相关者的激励，为生物燃料投资降低风险提供了一条切实可行的途径。以中美洲的伯利兹为例，与独立设施相比，该TEA可降低高达33%的成本，并节省大量的生命周期排放。本文提出的框架为评估多代综合生物精炼厂建立了一个临时基准，并为加速可持续生物燃料的商业可行性提供了可行的见解。

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引用次数: 0

Nanostructure-enabled current matching improvement in 3D layer-engineered all-perovskite tandem solar cells 纳米结构在三维层工程全钙钛矿串联太阳能电池中的电流匹配改进

IF 9.1 1区工程技术 Q1 ENERGY & FUELS

Renewable Energy

Pub Date : 2026-01-08 DOI: 10.1016/j.renene.2026.125220

Ali Akbar Haji Zeynali Biyoki , Mehrshad Masoudi , Maryam Shahrostami , Javad Maleki

This research proposes a novel all-perovskite tandem solar cell structure, investigated using finite element method simulations, and incorporating V₂O₅-CIGS core-shell structures in the bottom subcell to significantly improve performance and eliminate current mismatch between subcells. The reference structure initially had a J_sc of 14.78 mA/cm², a V_oc of 2.25 V, a PCE of 28.99 %, and a FF of 0.87. To enhance the low V_oc of the bottom subcell, V₂O₅ nanorods were added for improved hole transport, and CeO₂ was selected as the best electron transport layer, increasing V_oc to 2.59 V. The resulting decrease in J_sc was compensated by introducing a V₂O₅-CIGS core-shell structure, raising bottom subcell J_sc from 13.03 to 14.77 mA/cm². Further active layer re-optimization yielded a final J_sc of 16.09 mA/cm², with the current in both the top and bottom subcells perfectly matched. The optimized series-connected device reached J_sc of 16.09 mA/cm², V_oc of 2.63 V, PCE of 37.20 %, and FF of 0.87. A parallel-connected configuration was also studied, showing higher J_sc but lower V_oc and PCE. These integrated strategies demonstrate the effectiveness of core-shell nanostructures and layer optimization in achieving ideal current matching, higher efficiency, and broader solar spectrum utilization, advancing high-performance all-perovskite tandem solar cells.

本研究提出了一种新型的全钙钛矿串联太阳能电池结构，采用有限元模拟方法进行了研究，并在底部亚电池中加入了V2O5-CIGS核壳结构，以显着提高性能并消除亚电池之间的电流不匹配。该参考结构初始Jsc为14.78 mA/cm2， Voc为2.25 V， PCE为28.99%，FF为0.87。为了提高底部亚电池的低Voc，通过添加V2O5纳米棒来改善空穴传输，并选择CeO2作为最佳电子传输层，将Voc提高到2.59 V。通过引入V2O5-CIGS核壳结构来补偿Jsc的降低，将底部亚电池的Jsc从13.03 mA/cm2提高到14.77 mA/cm2。进一步的有源层重新优化得到了16.09 mA/cm2的最终Jsc，顶部和底部亚电池的电流完全匹配。优化后的串联器件Jsc为16.09 mA/cm2， Voc为2.63 V， PCE为37.20%，FF为0.87。研究结果表明，采用核壳纳米结构和层优化技术可以实现理想的电流匹配、更高的效率和更广泛的太阳光谱利用率，从而推动高性能全钙钛矿串联太阳能电池的发展。

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引用次数: 0

Planning of seawater pumped storage hydropower in coastal depressions of China 中国沿海洼地海水抽水蓄能水电规划

IF 9.1 1区工程技术 Q1 ENERGY & FUELS

Renewable Energy

Pub Date : 2026-01-08 DOI: 10.1016/j.renene.2026.125186

Yufan Fan , Jun Qiu , Bin Guo , Bang Du , Diyi Chen , Beibei Xu , Yong Peng , Bo Xu , Fangfang Li

Seawater pumped energy storage (SPES) offers a promising solution to the intermittency of offshore wind and photovoltaic power in China's coastal regions. However, a targeted planning approach is lacking. We present a novel multi-stage, data-driven potential model that leverages the unique advantages of coastal depression topography to improve reservoir depth estimation and more accurately quantify energy storage potential. First, technically feasible locations are identified based on environmental and regulatory constraints. Next, cost-reduction criteria are applied to screen these candidate sites. Finally, a multi-objective optimization framework simultaneously minimizes total construction cost, number of sites, and spatial distribution disparities to select an optimal combination of sites. The results identify approximately 20,000 potential coastal sites with a combined storage capacity of 4379 GWh. Among them, 87 sites exhibit average construction costs of €949/kW, approaching those of conventional freshwater pumped storage systems. Considering the low excavation costs of depressions, the actual construction costs may be lower than the estimated values. Under projected 2050 electricity-storage requirements, only 15 well-distributed site combinations with a total installed capacity of 19.2 GW can satisfy national demand while remaining cost-competitive with alternative storage technologies. This study provides a scalable, data-driven framework to support coordinated planning of SPES infrastructure alongside renewable energy development.

海水抽水蓄能（SPES）为解决中国沿海地区海上风电和光伏发电的间歇性问题提供了一个很有前景的解决方案。然而，缺乏有针对性的规划方法。我们提出了一种新的多阶段、数据驱动的潜力模型，该模型利用沿海坳陷地形的独特优势，改进了储层深度估计，并更准确地量化了储能潜力。首先，根据环境和监管限制确定技术上可行的地点。接下来，采用降低成本的标准来筛选这些候选地点。最后，多目标优化框架同时最小化总建设成本、站点数量和空间分布差异，以选择最优的站点组合。结果确定了大约20,000个潜在的沿海站点，总存储容量为4379 GWh。其中，87个站点的平均建设成本为949欧元/千瓦，接近传统淡水抽水蓄能系统的成本。考虑到洼地的开挖成本较低，实际施工成本可能低于估计值。根据预计的2050年电力存储需求，只有15个分布良好的站点组合，总装机容量为19.2 GW，才能满足全国需求，同时与替代存储技术保持成本竞争力。这项研究提供了一个可扩展的、数据驱动的框架，以支持与可再生能源发展协调规划的spe基础设施。

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引用次数: 0