Solar Energy最新文献_第3页

Deep Q-learning driven pathway to multi-objective engineering of frontier semi-transparent CdTe photovoltaics 前沿半透明碲化镉光电器件多目标工程的深度q学习驱动路径

IF 6 2区工程技术

Solar Energy Pub Date : 2026-03-15 Epub Date: 2026-01-16 DOI: 10.1016/j.solener.2026.114339

Erman Cokduygulular , Caglar Cetinkaya

{"title":"Deep Q-learning driven pathway to multi-objective engineering of frontier semi-transparent CdTe photovoltaics","authors":"Erman Cokduygulular , Caglar Cetinkaya","doi":"10.1016/j.solener.2026.114339","DOIUrl":"10.1016/j.solener.2026.114339","url":null,"abstract":"<div><div>In this study, a Deep Q-Learning-based, artificial intelligence (AI)-assisted multi-objective optimization framework was developed for the design of semi-transparent cadmium telluride (ST-CdTe) solar cells. The proposed approach integrates optical analyses based on the Transfer Matrix Method with photovoltaic simulations using SCAPS-1D to simultaneously optimize all layers in a multilayer CdTe-based solar cell with a dielectric/metal/dielectric (DMD) transparent contact. The Deep Q-Learning agent autonomously learned to balance the trade-off between maximizing photocurrent density and achieving the target average visible transmittance (AVT = 20%, 25%, 30%) through interactions within the simulation environment. Optical analyses revealed that strong electric field confinement and wave-guided photon trapping were preserved even in ultra-thin CdTe absorber layers (<150 nm). The integration of the MoO<sub>3</sub>/Au/WO<sub>3</sub>-based DMD transparent contact architecture not only maintained semi-transparency in the visible spectrum but also enhanced photon harvesting via internal optical reflection. SCAPS-1D results confirmed that the optimized structures achieved photovoltaic performance of V<sub>oc</sub> ≈ 0.95 V, J<sub>sc</sub> ≈ 20–21 mA cm<sup>−2</sup>, and PCE ≈ 15.7%. These findings demonstrate that Deep Q-Learning-based AI systems can simultaneously optimize optical and electrical parameters, offering a physics-informed redefinition of the transparency–efficiency trade-off in ST-CdTe solar cells. The proposed method introduces a broadly applicable paradigm for AI-driven design in photonic and optoelectronic device engineering.</div></div>","PeriodicalId":428,"journal":{"name":"Solar Energy","volume":"307 ","pages":"Article 114339"},"PeriodicalIF":6.0,"publicationDate":"2026-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145976365","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Performance comparison of ETC-driven indirect dryers and natural convection greenhouse dryer for multiple vegetable loads 多种蔬菜负载的间接烘干机与自然对流温室烘干机性能比较

IF 6 2区工程技术

Solar Energy Pub Date : 2026-03-15 Epub Date: 2026-01-27 DOI: 10.1016/j.solener.2026.114345

Abhishek Jain , Manoj Kumar , Harveer Singh Pali , Anish Malan

{"title":"Performance comparison of ETC-driven indirect dryers and natural convection greenhouse dryer for multiple vegetable loads","authors":"Abhishek Jain , Manoj Kumar , Harveer Singh Pali , Anish Malan","doi":"10.1016/j.solener.2026.114345","DOIUrl":"10.1016/j.solener.2026.114345","url":null,"abstract":"<div><div>In this manuscript, experiments have been performed on an evacuated tube collector indirect solar dryer (ETC-ISD) and a natural convection greenhouse dryer (NCGHD), across three vegetables (carrot, spinach, tomato) and varying crop loads (2.5, 5, and 10 kg) at the National Institute of Solar Energy, Gurugram, India (March–May 2025), with real-time monitoring of solar irradiance, chamber conditions, drying kinetics, moisture ratio, and visual assessment of microbial spoilage. Vegetables were dried from initial moisture contents of 88 % (carrot), 92.6 % (spinach), and 95 % (tomato) to safe levels of 5 %, 7 %, and 9 % on a wet basis, respectively. The NCGHD consistently maintained higher chamber temperatures (15–20 °C above ETC-ISD, peaking at 71.8 °C), resulting in 28–35 % faster drying and 1.7–2.5 times higher drying efficiency. While the ETC-ISD provided uniform thermal distribution, its higher internal humidity occasionally led to fungal development in tomatoes during extended drying. An economic assessment indicates that the initial cost of the NCGHD is around 78.5 % lower than that of the ETC-ISD. Overall, the results highlight the suitability of drying systems for decentralised solar drying aligned with Sustainable Development Goals (SDGs) 2 (Zero Hunger), 7 (Affordable and Clean Energy), and 9 (Industry, Innovation, and Infrastructure).</div></div>","PeriodicalId":428,"journal":{"name":"Solar Energy","volume":"307 ","pages":"Article 114345"},"PeriodicalIF":6.0,"publicationDate":"2026-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146074856","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Corrosion resistance of heat-treated alumina-forming austenitic steels in high-temperature molten NaCl–MgCl2–KCl 热处理铝形成奥氏体钢在高温NaCl-MgCl2-KCl熔液中的耐蚀性

IF 6 2区工程技术

Solar Energy Pub Date : 2026-03-15 Epub Date: 2026-01-19 DOI: 10.1016/j.solener.2026.114344

Liuxin Wang , Sijie Liu , Jiale Huang , Ping Yu , Mengyu Gao , Yang Si , Fangfang Ge , Bingsheng Li

{"title":"Corrosion resistance of heat-treated alumina-forming austenitic steels in high-temperature molten NaCl–MgCl2–KCl","authors":"Liuxin Wang , Sijie Liu , Jiale Huang , Ping Yu , Mengyu Gao , Yang Si , Fangfang Ge , Bingsheng Li","doi":"10.1016/j.solener.2026.114344","DOIUrl":"10.1016/j.solener.2026.114344","url":null,"abstract":"<div><div>The molten chloride salt corrosion behavior of two heat-treated aluminum-containing austenitic (AFA) alloys, designated AFA1 (18Ni–14Cr–3Al) and AFA2 (25Ni–14Cr–3Al), was investigated at 700 °C in a NaCl–MgCl<sub>2</sub>–KCl (30.2–47.1–22.7 mol%) environment. A solution treatment of 1130 °C/1h followed by 700 °C/24 h aging was employed to precipitate secondary phases, including B2-NiAl, Laves, and NbC, which were characterized along with corrosion depth using scanning electron microscopy and energy-dispersive spectroscopy. The heat treatment significantly influenced the protective nature of the surface oxide scale. A less compact composite MgCr<sub>2</sub>O<sub>4</sub> spinel was formed. Despite this, both heat-treated AFA alloys demonstrated superior long-term resistance, with corrosion depths of less than 100 μm after 400 h. This performance markedly exceeds that of commercial 316 L stainless steel, which exhibited a corrosion depth of 260.1 μm under the identical condition. The underlying corrosion mechanisms are discussed.</div></div>","PeriodicalId":428,"journal":{"name":"Solar Energy","volume":"307 ","pages":"Article 114344"},"PeriodicalIF":6.0,"publicationDate":"2026-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146024370","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Design and performance investigation of a mixed-mode solar dryer for efficient drying of different agricultural products: CFD simulations and experimental analysis 用于不同农产品高效干燥的混合模式太阳能干燥机设计与性能研究：CFD模拟与实验分析

IF 6 2区工程技术

Solar Energy Pub Date : 2026-03-15 Epub Date: 2026-01-20 DOI: 10.1016/j.solener.2026.114330

Arafat Esam Abdullah Abdulmajeed , Azim Doğuş Tuncer , Afsin Gungor

{"title":"Design and performance investigation of a mixed-mode solar dryer for efficient drying of different agricultural products: CFD simulations and experimental analysis","authors":"Arafat Esam Abdullah Abdulmajeed , Azim Doğuş Tuncer , Afsin Gungor","doi":"10.1016/j.solener.2026.114330","DOIUrl":"10.1016/j.solener.2026.114330","url":null,"abstract":"<div><div>Solar drying represents one of the most economical and energy-efficient methods for preserving agricultural products such as Yemeni grapes, bananas, apples, and tomatoes. In this work, a mixed-mode solar dryer (MSD) was designed, fabricated, and evaluated through both CFD simulations and experimental testing. The study integrates design, energy–exergy analysis, and CFD diagnostics to directly guide MSD geometry and operation for multi-crop drying. The system integrates a flat-plate solar air heater (FPSAH) and a drying chamber (DC), and its performance was assessed under various flow rates (0.013, 0.015, and 0.020 kg/s) and climatic conditions. Additionally, a v-grooved plate solar air heater (VPSAH) was modeled to compare temperature distribution and airflow behavior using ANSYS Fluent. CFD results showed that replacing FPSAH with VPSAH increased air temperature difference by 22.41 %. Experimental results indicated that the outlet temperature difference of the FPSAH decreased with increasing flow rate, yielding mean values of 22.06, 17.41, and 16.29 °C at flow rates of 0.013 kg/s, 0.015 kg/s, and 0.020 kg/s, respectively. At 0.015 kg/s, thermal and exergy efficiencies were 54.05 % and 21.62 %. Moisture contents of grapes, banana, tomato, and apple slices were reduced to 0.3193, 0.0368, 0.2142, and 0.04018 g water/g dry matter, respectively. Drying durations ranged from 6 to 32 h depending on the product. The MSD achieved drying efficiencies between 5.10 % and 44.62 %. This work demonstrates the potential of integrating numerical and experimental methods for optimizing MSD systems and improving post-harvest drying performance using renewable energy.</div></div>","PeriodicalId":428,"journal":{"name":"Solar Energy","volume":"307 ","pages":"Article 114330"},"PeriodicalIF":6.0,"publicationDate":"2026-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146024386","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Comparative analysis and trends in performance of identical PV panels under different climatic conditions 相同光伏板在不同气候条件下性能的比较分析和趋势

IF 6 2区工程技术

Solar Energy Pub Date : 2026-03-15 Epub Date: 2026-01-28 DOI: 10.1016/j.solener.2026.114349

Iroshani Jayawardene , Dumitru Roman , Xiang Ma , Alessandro Liberale , Alicia Arce , Alfredo Gonzalez Naranjo , Rafael Martin Salinas , Rebeca Gutierrez , Hélène Ben Khemis , Zaher Khantouch , Claudio Fernández-Acevedo , Jesús Cordón , Julián Crespo , Ahmet Soylu , Antoine Pultier , Alexander Ulyashin

{"title":"Comparative analysis and trends in performance of identical PV panels under different climatic conditions","authors":"Iroshani Jayawardene , Dumitru Roman , Xiang Ma , Alessandro Liberale , Alicia Arce , Alfredo Gonzalez Naranjo , Rafael Martin Salinas , Rebeca Gutierrez , Hélène Ben Khemis , Zaher Khantouch , Claudio Fernández-Acevedo , Jesús Cordón , Julián Crespo , Ahmet Soylu , Antoine Pultier , Alexander Ulyashin","doi":"10.1016/j.solener.2026.114349","DOIUrl":"10.1016/j.solener.2026.114349","url":null,"abstract":"<div><div>In this paper, a comparative analysis and trends in performance of identical photovoltaic (PV) panels under different climatic conditions are presented. Three PV demo sites situated in Oslo, Norway; Tozeur, Tunisia; and Sevilla, Spain are included into performed comparative analysis. Each site includes sets of identical mono-Si based PV panels supplied by the same manufacturers. The PV panel configurations include: (i) mono-facial, (ii) bi-facial, and (iii) innovative bi-facial PV panels with front glass covered by hydrophobic (HFB) or hydrophilic (HFL) coatings. At all three locations, each panel is equipped with Tigo optimizers, enabling module-level monitoring and DC energy-based performance assessment. Performance metrics are evaluated using IEC 61,724 based indicators, with irradiance derived from global horizontal irradiance data. Statistical analyses are applied to validate observed performance differences between panel types across locations. The results provide a technology-controlled comparison of PV panel behavior across cold-wet, warm-wet, and warm-dry climates, highlighting the influence of temperature, surface reflectivity, and coating type on relative performance trends.</div></div>","PeriodicalId":428,"journal":{"name":"Solar Energy","volume":"307 ","pages":"Article 114349"},"PeriodicalIF":6.0,"publicationDate":"2026-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146074435","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Experimental study of hierarchically doped calcium carbonate particles for high-temperature thermochemical energy storage 分层掺杂碳酸钙颗粒高温热化学储能的实验研究

IF 6 2区工程技术

Solar Energy Pub Date : 2026-03-15 Epub Date: 2026-01-20 DOI: 10.1016/j.solener.2026.114329

Fengyuan Chai, Kai Jiang, Xiangyu Xie, Peiwang Zhu, Gang Xiao

{"title":"Experimental study of hierarchically doped calcium carbonate particles for high-temperature thermochemical energy storage","authors":"Fengyuan Chai, Kai Jiang, Xiangyu Xie, Peiwang Zhu, Gang Xiao","doi":"10.1016/j.solener.2026.114329","DOIUrl":"10.1016/j.solener.2026.114329","url":null,"abstract":"<div><div>The thermochemical energy storage system (TCES) driven by the calcium looping is expected to enhance the efficiency of the next-generation concentrated solar power (CSP) plants. To address issues such as low optical absorption capacities of natural calcium-based materials, sintering and deactivation at high temperatures, and difficulties in forming high-strength particles, this paper synthesizes hierarchically doped calcium-based particles by a rolling forming method. The particles consist of an Al-rich core and a uniformly distributed outer shell containing four elements: Ca, Mn, Fe, and Mg. The particles exhibit an average solar absorptance of up to 90.41 % and a maximum mechanical compressive strength of 35.83 N. After a 120-hour attrition test, the particles exhibited a mass loss of only 4.05 %. In cyclic testing at 800°C, the conversion rate of the particles decreased by only 8.58 % after 10 cycles, remaining at 81.42 %, while the energy storage density decreased by only 102.91 kJ/kg. The heat storage characteristics of the prepared particles were evaluated with a sliding-bed particle receiver. Under total radiant power of 3.35 kW and an outlet flow rate of 0.85 g/s, the highest conversion rate of the calcination reaction reached 94.08 %, and the maximum outlet temperature of the particles reached 960.3°C. This work prepared high-performance hierarchically doped calcium-based particles, providing a reference for the application of TCES driven by calcium looping under solar radiation.</div></div>","PeriodicalId":428,"journal":{"name":"Solar Energy","volume":"307 ","pages":"Article 114329"},"PeriodicalIF":6.0,"publicationDate":"2026-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146024387","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Dissecting the electron mobility and physical mechanisms of Y series acceptors with central hybridization substitutions 解析中心杂化取代Y系列受体的电子迁移率及物理机制

IF 6 2区工程技术

Solar Energy Pub Date : 2026-03-15 Epub Date: 2026-01-23 DOI: 10.1016/j.solener.2026.114328

Long Zhang , Yu Zhang , Minmin Chen , Xuefei Pan , Peng Song , Yuanzuo Li

{"title":"Dissecting the electron mobility and physical mechanisms of Y series acceptors with central hybridization substitutions","authors":"Long Zhang , Yu Zhang , Minmin Chen , Xuefei Pan , Peng Song , Yuanzuo Li","doi":"10.1016/j.solener.2026.114328","DOIUrl":"10.1016/j.solener.2026.114328","url":null,"abstract":"<div><div>Inspired by the high-performance acceptor CH17 with a reported efficiency of 18.13 %, this study designs three novel π-conjugated non-fullerene acceptors (CH2H, CH2CH3, and CH2OCH3) by central hybridization based on the central unit and end unit 2-(6,7-difluoro-3-oxo-2,3-dihydro-1H-cyclopental[b]naphthalen-1-ylidene) malononitrile (NINCN-2F). A comprehensive quantum chemical investigation is conducted to assess photophysical properties, charge transport behavior, and molecular configurations. Results indicate that central unit hybridization effectively narrows the energy gap (<em>Δ<sub>L-H</sub></em>) and singlet–triplet energy difference (<strong><em>△</em></strong><em>E<sub>ST</sub></em>), enhances the absorption maximum (<em>λ<sub>max</sub></em>) and electron mobility (<em>µ<sub>e</sub></em>), and improves overall photophysical and photoexcitation characteristics. Among the designed molecules, CH2OCH3 demonstrates optimal performance, exhibiting the smallest <em>Δ<sub>L-H</sub></em> (1.85 eV), <strong><em>△</em></strong><em>E<sub>ST</sub></em> (0.4994 eV), the largest <em>λ<sub>max</sub></em> (749.79 nm), and the highest <em>µ<sub>e</sub></em> (0.3597 cm<sup>2</sup>/(V·s)). This study confirms that structural tailoring of the central moiety serves as a viable strategy to enhance optoelectronic performance, charge transfer ability, and photovoltaic properties of NFAs.</div></div>","PeriodicalId":428,"journal":{"name":"Solar Energy","volume":"307 ","pages":"Article 114328"},"PeriodicalIF":6.0,"publicationDate":"2026-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146024818","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Solar-light-active photocatalytic SrBi2Nb2O9-Li2O-B2O3 glass-ceramic plates 太阳光活性光催化SrBi2Nb2O9-Li2O-B2O3玻璃陶瓷板

IF 6 2区工程技术

Solar Energy Pub Date : 2026-03-15 Epub Date: 2026-01-27 DOI: 10.1016/j.solener.2026.114370

Rahul , Abhishek Shukla , C Vamshi , Vishal Singh Chauhan , Rahul Vaish

{"title":"Solar-light-active photocatalytic SrBi2Nb2O9-Li2O-B2O3 glass-ceramic plates","authors":"Rahul , Abhishek Shukla , C Vamshi , Vishal Singh Chauhan , Rahul Vaish","doi":"10.1016/j.solener.2026.114370","DOIUrl":"10.1016/j.solener.2026.114370","url":null,"abstract":"<div><div>Toxic pollutants released from textile, dye, paper, and related manufacturing industries pose a significant environmental threats. Degrading these pollutant into non-toxic, harmless by products are essential for safeguarding clean and safe water resources. Therefore, the development of efficient and sustainable treatment strategies are crucial. In this context, photocatalysis has emerged as a highly promising approach, enabling the degradation of hazardous organic pollutant using abundant solar irradiation. In this study, SrBi<sub>2</sub>Nb<sub>2</sub>O<sub>9</sub> (SBN), a member of Aurivillius family, was explored for its photocatalytic potential in glass-ceramic plates form. 16.66SrO-16.66Bi<sub>2</sub>O<sub>3</sub>-16.66Nb<sub>2</sub>O<sub>5</sub>-50Li<sub>2</sub>B<sub>4</sub>O<sub>7</sub> (mol%) glass plates were prepared via the conventional melt-quenching technique, followed by controlled heat treatments at 530 °C, 590 °C and 650 °C (HT530, HT590 and HT650) to induce crystallization. Photocatalytic degradation of methylene blue (MB) dye revealed that the HT650 glass–ceramic plate exhibited the highest degradation performance of ∼ 58% under visible light (∼32000 lx) within 240 min and ∼ 68% under solar light (∼72000 lx) within 60 min. Under solar irradiation, degradation efficiencies of ∼ 62%, ∼68%, and ∼ 74% were achieved for catalyst surface areas of 75, 150, and 300 mm<sup>2</sup>, respectively. When the initial dye concentration was varied using a fixed surface area of 150 mm<sup>2</sup>, degradation efficiencies of ∼ 77%, ∼68%, and ∼ 54% were obtained for dye concentrations of 7.5, 10, and 12.5 ppm, respectively. A general SWOT (Strengths, Weaknesses, Opportunities, and Threats) analysis further highlighted the potential of SBN glass–ceramic plates as a promising and sustainable photocatalyst for environmental remediation under solar irradiation.</div></div>","PeriodicalId":428,"journal":{"name":"Solar Energy","volume":"307 ","pages":"Article 114370"},"PeriodicalIF":6.0,"publicationDate":"2026-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146074446","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A climate-tailored predictive methodology for directly coupled photovoltaic-electrolyzer systems 直接耦合光伏-电解槽系统的气候定制预测方法

IF 6 2区工程技术

Solar Energy Pub Date : 2026-03-15 Epub Date: 2026-01-29 DOI: 10.1016/j.solener.2026.114342

Ze Ren , Yi Peng , Yizhou Zhu , Baichuan He , Zilong Zeng , Qingfan Liu , Zejia Pan , Dengwei Jing

{"title":"A climate-tailored predictive methodology for directly coupled photovoltaic-electrolyzer systems","authors":"Ze Ren , Yi Peng , Yizhou Zhu , Baichuan He , Zilong Zeng , Qingfan Liu , Zejia Pan , Dengwei Jing","doi":"10.1016/j.solener.2026.114342","DOIUrl":"10.1016/j.solener.2026.114342","url":null,"abstract":"<div><div>The performance of directly coupled photovoltaic-electrolyzer (PVEC) systems exhibits significant regional variability due to climatic factors, necessitating reliable prediction methodology for deployment planning. This study presents a novel methodology integrating a dynamic nonlinear PVEC model with tailored data processing for region-specific production prediction. The model, developed in Simulink and integrated with MATLAB-coded algorithmic components, incorporates essential subsystems: photovoltaics, electrolyzer, DC-DC conversion, and maximum power point tracking. The data processing framework introduces signal transformations between discrete, continuous, piecewise linear, and piecewise constant formats, alongside a “typical day” concept to reduce computational costs. Following experimental validation of core components, the model demonstrated an accuracy of over 90% in predicting an annual hydrogen production of 121 Nm<sup>3</sup> for a PVEC system with 2.8 m<sup>2</sup> photovoltaic cell in Xi’an, China. The simulation predicts that the hydrogen production in the highest output month (July) is 2.44 times that of the lowest output month (January), and under the average meteorological conditions in Xi’an, the STH (Solar to Hydrogen) efficiency of the system is expected to remain within the range of 9% to 11%, with an estimated investment payback period of around 4–5 years after deployment. The proposed methodology establishes a valuable evaluation framework for PVEC deployment across diverse climatic regions.</div></div>","PeriodicalId":428,"journal":{"name":"Solar Energy","volume":"307 ","pages":"Article 114342"},"PeriodicalIF":6.0,"publicationDate":"2026-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146074356","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Techno-economically viable coloured BIPV modules with enhanced aesthetics and performance via animated Moiré patterns 技术经济上可行的彩色BIPV模块，通过动画模式增强美学和性能

IF 6 2区工程技术

Solar Energy Pub Date : 2026-03-15 Epub Date: 2026-01-26 DOI: 10.1016/j.solener.2026.114369

Dong-Youn Shin , Vee Hoong Mok , Wei Hong Lim , Benny Putra Utomo

{"title":"Techno-economically viable coloured BIPV modules with enhanced aesthetics and performance via animated Moiré patterns","authors":"Dong-Youn Shin , Vee Hoong Mok , Wei Hong Lim , Benny Putra Utomo","doi":"10.1016/j.solener.2026.114369","DOIUrl":"10.1016/j.solener.2026.114369","url":null,"abstract":"<div><div>In an endeavour to curtail greenhouse gas emissions and mitigate anthropogenic climate change, policies promoting zero-energy buildings have been implemented, thereby driving the demand for coloured building-integrated photovoltaic (BIPV) modules that combine aesthetic appeal with photoconversion efficiency comparable to conventional BIPV modules. However, conventional approaches to reducing the power loss associated with BIPV module colouration often rely on costly fabrication processes or prohibitively expensive materials. Accordingly, this study explores readily implementable and practical strategies for coloured BIPV modules that achieve both aesthetic appeal and high photoconversion efficiency, employing Moiré patterns on the front glazing through the use of optical interference pigments and screen printing. Optical interference pigments, synthesised via low-cost wet-chemical processes, form one-dimensional photonic crystal structures at the mesoscopic scale and exhibit exceptionally high spectrally weighted transmittance (SWT, averaged over the wavelength range of 400–1100 nm), achieving 86.06–92.98% at a pigment concentration of 5 wt% in screen-printed and cured films on glass substrates, compared with 41.17% for a conventional pigment. Furthermore, optical simulations demonstrate that Moiré patterns on the front glazing enhance light transmission even under inclined incidence angles, thereby improving relative SWT by an average of 130.56%. The integration of these techno-economically viable measures is expected to advance both the aesthetic quality and functional performance of coloured BIPV modules, thereby accelerating their adoption in sustainable architectural practice.</div></div>","PeriodicalId":428,"journal":{"name":"Solar Energy","volume":"307 ","pages":"Article 114369"},"PeriodicalIF":6.0,"publicationDate":"2026-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146074357","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0