Solar Energy最新文献

Predicting solar radiation acquisition and defining morphological thresholds in residential buildings under a theoretical model: A case study of Lhasa, China

IF 6 2区工程技术

Solar Energy Pub Date : 2025-04-03 DOI: 10.1016/j.solener.2025.113468

Bo Liu , Yu Liu , Hui Wang , Juan Ren , Jiaping Liu

{"title":"Predicting solar radiation acquisition and defining morphological thresholds in residential buildings under a theoretical model: A case study of Lhasa, China","authors":"Bo Liu , Yu Liu , Hui Wang , Juan Ren , Jiaping Liu","doi":"10.1016/j.solener.2025.113468","DOIUrl":"10.1016/j.solener.2025.113468","url":null,"abstract":"<div><div>Residential building morphology plays a critical role in solar energy capture in cold regions with abundant sunlight; however, predictive mechanisms for optimizing solar gains remain underexplored. This study employs a theoretical model to analyze idealized morphological variations in Lhasa, China, identifying strategies to enhance solar performance. Results demonstrate that the winter sunlight shape factor outperforms traditional metrics like aspect ratio in predicting solar efficiency across diverse geometries. Complex configurations (e.g., L-shaped and C-shaped layouts) exhibit significant self-shading effects, necessitating strategic adjustments to orientation and form. Optimal orientations are identified as slightly west of south for rectangular/L-shaped structures and due south for C-shaped buildings. High-accuracy predictive models based on morphological parameters provide actionable design tools. By integrating theoretical insights with regional climatic demands, this work establishes guidelines for energy-efficient residential design in solar-rich cold regions, balancing regulatory constraints with solar optimization. The methodology and transferable principles offer a universal framework for cold-climate architecture, adaptable to regions with analogous solar-thermal conditions.</div></div>","PeriodicalId":428,"journal":{"name":"Solar Energy","volume":"293 ","pages":"Article 113468"},"PeriodicalIF":6.0,"publicationDate":"2025-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143760664","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

Advanced control of solar-powered automated drying systems to enhance grain quality using a hybrid HOA-CINN approach

IF 6 2区工程技术

Solar Energy Pub Date : 2025-04-03 DOI: 10.1016/j.solener.2025.113467

S. Malaisamy , B. Meenakshi Sundaram , A. Srinivasan

{"title":"Advanced control of solar-powered automated drying systems to enhance grain quality using a hybrid HOA-CINN approach","authors":"S. Malaisamy , B. Meenakshi Sundaram , A. Srinivasan","doi":"10.1016/j.solener.2025.113467","DOIUrl":"10.1016/j.solener.2025.113467","url":null,"abstract":"<div><div>Grain drying is a vital post-harvest process that ensures long-term storage stability and quality preservation. However, conventional drying methods often suffer from high energy consumption and inconsistent moisture removal, demanding the development of more efficient and adaptive drying solutions. This research offers a new adaptive control for the performance improvement of solar-powered automatic grain drying systems. The proposed adaptive system utilizes the Hippopotamus Optimization Algorithm (HOA) to optimize drying parameters and enhance grain quality and Conditional Invertible Neural Network (CINN) is used to predict the behavior of the drying system allowing adaptive control to maintain optimal drying conditions. The study’s primary aim is to minimize the moisture ratio (MR), thus reducing post-harvest grain loss and preserving the overall quality and nutritional value of the grains. The proposed method, referred to as HOA-CINN is implemented in MATLAB and compared with various existing techniques for performance analysis. The proposed method achieved a low MR of 10, ensuring efficient moisture removal and reduced post-harvest loss. It also demonstrated a low peak energy consumption of 1.113 kWh, outperforming existing methods in energy efficiency. Additionally, the color change value of 9.38 indicates superior grain quality retention with minimal discoloration. Furthermore, statistical analysis confirms the stability and consistency of the proposed techniques, with a mean and median of 1.2290 and 1.2134, in that order and a low standard deviation of 0.0326, highlighting its reliability in maintaining optimal drying conditions.</div></div>","PeriodicalId":428,"journal":{"name":"Solar Energy","volume":"293 ","pages":"Article 113467"},"PeriodicalIF":6.0,"publicationDate":"2025-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143760663","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

Investigation on the photocatalytic properties of SiI2/InSe and SiI2/InTe heterojunctions

IF 6 2区工程技术

Solar Energy Pub Date : 2025-04-02 DOI: 10.1016/j.solener.2025.113487

Ruyang Yan , Yuqi Wang , Cong Yan , Xumin Yang , Nan Zhang , Xiaobo Ma , Jie Wang , Xugang Huang , Zhaogang Liu , Qiong Lv , Hongsheng Zhao , Huanming Chen

{"title":"Investigation on the photocatalytic properties of SiI2/InSe and SiI2/InTe heterojunctions","authors":"Ruyang Yan , Yuqi Wang , Cong Yan , Xumin Yang , Nan Zhang , Xiaobo Ma , Jie Wang , Xugang Huang , Zhaogang Liu , Qiong Lv , Hongsheng Zhao , Huanming Chen","doi":"10.1016/j.solener.2025.113487","DOIUrl":"10.1016/j.solener.2025.113487","url":null,"abstract":"<div><div>The electrical, optical and photocatalytic properties of SiI<sub>2</sub>/InSe and SiI<sub>2</sub>/InTe heterojunctions have been investigated based on the energetic, thermodynamic and mechanically stability assessment. The tuning effects of band gap incurred by applied strain and electric field have also been explored. The results indicated that the constructed heterojunctions are type–II heterojunctions with Z–alignment and showing narrow band–gap values of 1.4769 eV and 1.8335 eV respectively. The lower exciton binding energy coupled with the higher mobility of electrons as well as stronger light absorption coefficient make the STH of them can be achieved to 24.31 % and 18.01 % respectively. The STH of SiI<sub>2</sub>/InSe can be increased from 24.31 % to 30.23 % with compressive strain while that of SiI<sub>2</sub>/InTe is increased from 18.01 % to 38.16 % with tensile strain. The HER and the OER analysis indicates HER will take place on SiI<sub>2</sub> side for the SiI<sub>2</sub>/InSe heterojunction, while it takes place on the InTe layer for the SiI<sub>2</sub>/InTe. The HER and OER reaction can happen spontaneously by adjusting <em>U</em><sub>e</sub> and pH moderately or driven via an applied bias potential due to acidic environment is not conducive to the HER and OER.</div></div>","PeriodicalId":428,"journal":{"name":"Solar Energy","volume":"293 ","pages":"Article 113487"},"PeriodicalIF":6.0,"publicationDate":"2025-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143746913","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 investigation on improving the efficiency and water conservation performance of a novel spray-media pad coupled evaporative cooling system

IF 6 2区工程技术

Solar Energy Pub Date : 2025-04-01 DOI: 10.1016/j.solener.2025.113481

Mingcai Yu, Liang Zhang, Qi Fang, Yu Lin, Rui Li

{"title":"Experimental investigation on improving the efficiency and water conservation performance of a novel spray-media pad coupled evaporative cooling system","authors":"Mingcai Yu, Liang Zhang, Qi Fang, Yu Lin, Rui Li","doi":"10.1016/j.solener.2025.113481","DOIUrl":"10.1016/j.solener.2025.113481","url":null,"abstract":"<div><div>Evaporative cooling technology holds great potential for improving the efficiency of air-cooled chiller systems, leading to substantial energy savings. Spray cooling and media pad cooling technologies are limited by low cooling efficiency and high water consumption, respectively. A three-stage evaporative cooling system (SMEC) integrated micro-mist spray and media pad was designed to tackle these challenges. Cooling performance on SMEC, especially water conservation performance was focused. The cooling efficiency of 67.9 % is achieved by the SMEC system under standard summer air conditions of 35 °C and 60 % relative humidity. Compared to single spray and single media pad cooling systems, the SMEC system shows a 7.4 % and 10.9 % improvement in cooling efficiency, respectively, while reducing water consumption by 16.7 % and 78.5 %, respectively. The parametric sensitivity analysis showed that as the inlet air relative humidity and velocity increase, the SMEC system’s cooling and humidification performance weakens; conversely, it improves when the spray flow rate increases. Water utilization decreases with higher inlet air relative humidity and spray flow rate but increases with higher air velocity. Additionally, in the context of the SMEC system, when the media pad thickness is increased from 50 mm to 100 mm, the cooling efficiency and water evaporation efficiency are increased by 20.3 % and 3.1 %, respectively.</div></div>","PeriodicalId":428,"journal":{"name":"Solar Energy","volume":"293 ","pages":"Article 113481"},"PeriodicalIF":6.0,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143746858","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

Study on the separation of crystalline silicon photovoltaic modules using the green solvent NMP

IF 6 2区工程技术

Solar Energy Pub Date : 2025-04-01 DOI: 10.1016/j.solener.2025.113453

Chenyang Li , Liqian Zhao , Feihong Guo , Xiaoxiang Jiang , Yuxiu Duan , Wensheng Xu

{"title":"Study on the separation of crystalline silicon photovoltaic modules using the green solvent NMP","authors":"Chenyang Li , Liqian Zhao , Feihong Guo , Xiaoxiang Jiang , Yuxiu Duan , Wensheng Xu","doi":"10.1016/j.solener.2025.113453","DOIUrl":"10.1016/j.solener.2025.113453","url":null,"abstract":"<div><div>Solar energy, with its advantages of safety, reliability, cleanliness, and wide distribution, has seen a significant increase in photovoltaic (PV) installations. However, this growth has led to a large number of end of life PV modules. The adhesive effect of EVA (ethylene–vinyl acetate) makes it difficult to effectively separate and recycle the various layers of these modules. Therefore, the key to recycling silicon PV modules lies in removing or weakening the adhesive properties of EVA while protecting core components such as silicon from damage, thereby achieving efficient separation and recycling of the layers. This paper proposes a novel green treatment method using N-methylpyrrolidone (NMP) as a solvent for recycling discarded PV modules. Through experimental studies, we investigated the effects of different NMP treatment conditions-including temperature, time, sheet size, and rotor speed-on the reaction rate of EVA. The optimal processing condition was found to be heating at 150 °C for 45 min. Kinetic fittings were performed under various conditions, and parameters were characterized using scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), and contact angle measurements. The mechanism of the reaction between NMP and EVA was analyzed. Finally, experiments were conducted on Commercial PV modules to develop a fundamentally harmless recycling process. A life cycle assessment of this recycling process was also carried out, providing theoretical guidance for future applications of NMP in the treatment of waste silicon PV modules.</div></div>","PeriodicalId":428,"journal":{"name":"Solar Energy","volume":"293 ","pages":"Article 113453"},"PeriodicalIF":6.0,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143746914","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

Progress in particle-based solar energy capture and storage for concentrated solar power and thermal technology applications

IF 6 2区工程技术

Solar Energy Pub Date : 2025-04-01 DOI: 10.1016/j.solener.2025.113432

Peter G. Loutzenhiser (Managing Guest Editor), Renkun Chen (Guest Editor), Clifford K. Ho (Guest Editor)

引用次数: 0

Performance and durability of anti-soiling and anti-reflective coatings for photovoltaic systems in desert climates

IF 6 2区工程技术

Solar Energy Pub Date : 2025-04-01 DOI: 10.1016/j.solener.2025.113446

Alaa Elsafi , Brahim Aïssa , Klemens Ilse , Amir Abdallah

{"title":"Performance and durability of anti-soiling and anti-reflective coatings for photovoltaic systems in desert climates","authors":"Alaa Elsafi , Brahim Aïssa , Klemens Ilse , Amir Abdallah","doi":"10.1016/j.solener.2025.113446","DOIUrl":"10.1016/j.solener.2025.113446","url":null,"abstract":"<div><div>The efficiency of photovoltaic (PV) systems is significantly hindered by soiling, especially in desert climates where dust accumulation on PV surfaces is prevalent and reduces light transmission and increases maintenance costs. This study provides a comprehensive review of anti-soiling and anti-reflective coatings (ASC & ARC) designed to mitigate these effects and enhance PV performance. The review examines various coating materials, synthesis techniques such as (Sol-gel, Magnetron sputtering, spray pyrolysis), and surface properties, emphasizing their optical performance, durability, and outdoor reliability in harsh environments. Laboratory characterization methods, including UV–Vis spectroscopy, SEM, AFM, and contact angle measurements, are analyzed alongside real-world field studies. The study also integrates standardized testing frameworks (IEC and ASTM protocols) to evaluate coatings under extreme environmental conditions such as UV exposure, thermal cycling, and mechanical abrasion. Results highlight that optimized coatings can significantly reduce soiling rates, improve light absorption, and enhance long-term energy yield. Furthermore, combining ASC and ARC functionalities has shown potential for maximizing PV efficiency while minimizing cleaning requirements. This review serves as a critical reference for advancing coating technologies, bridging the gap between laboratory research and large-scale PV deployment, and guiding the development of durable, cost-effective solutions for desert climates.</div></div>","PeriodicalId":428,"journal":{"name":"Solar Energy","volume":"293 ","pages":"Article 113446"},"PeriodicalIF":6.0,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143739644","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Enhanced PV power harvesting and grid support through decoupled predictive power control of multi-functional split-source inverter

IF 6 2区工程技术

Solar Energy Pub Date : 2025-03-31 DOI: 10.1016/j.solener.2025.113438

Billel Talbi , Abbes Kihal , Abdelbasset Krama , Abdeslem Sahli , Abdesslam Belaout , Adel Mellit

{"title":"Enhanced PV power harvesting and grid support through decoupled predictive power control of multi-functional split-source inverter","authors":"Billel Talbi , Abbes Kihal , Abdelbasset Krama , Abdeslem Sahli , Abdesslam Belaout , Adel Mellit","doi":"10.1016/j.solener.2025.113438","DOIUrl":"10.1016/j.solener.2025.113438","url":null,"abstract":"<div><div>This paper investigates a novel multi-functional photovoltaic grid-connected inverter (MF-PVGCI) configuration employing a split-source inverter (SSI), which offers significant advantages over conventional impedance-source inverters. The suggested MF-PVGCI operates adaptively in three distinct modes; full active power filter (F-APF) mode, partial active power filter (P-APF) mode, and real power injection (RPI) mode, based on the solar irradiance availability. To enhance system performance, a multi-objective control structure based on a finite set-model predictive control strategy is suggested to maximize the power harvested from the PV array and to control the grid active and reactive powers in a precise decoupled manner. This control structure allows the SSI to operate as a reactive power compensator to meet the demands of nonlinear loads connected at the point of common coupling (PCC) and supply these loads by the maximum harvested PV power and inject any surplus power into the grid. The suggested control structure is designed in a straightforward manner making it suitable for practical implementation. Simulation results, hardware-in-the loop (HiL) tests, and comparative analysis validate the effectiveness and robustness of the suggested multi-objective control structure.</div></div>","PeriodicalId":428,"journal":{"name":"Solar Energy","volume":"293 ","pages":"Article 113438"},"PeriodicalIF":6.0,"publicationDate":"2025-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143739643","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

Modelling wave-induced losses for floating photovoltaics: Impact of design parameters and environmental conditions

IF 6 2区工程技术

Solar Energy Pub Date : 2025-03-31 DOI: 10.1016/j.solener.2025.113439

Vilde Stueland Nysted , Lars Einar S. Stieng , Manish Kumar , Nathan Roosloot , Gaute Otnes , Torunn Kjeldstad , Josefine Selj

{"title":"Modelling wave-induced losses for floating photovoltaics: Impact of design parameters and environmental conditions","authors":"Vilde Stueland Nysted , Lars Einar S. Stieng , Manish Kumar , Nathan Roosloot , Gaute Otnes , Torunn Kjeldstad , Josefine Selj","doi":"10.1016/j.solener.2025.113439","DOIUrl":"10.1016/j.solener.2025.113439","url":null,"abstract":"<div><div>The interest in floating photovoltaics (FPV) as a land-sparing alternative has been rapidly growing over the last few years. So far, most of the installed FPV systems are inland on relatively calm waters. However, with the expanding market, FPV is moving to nearshore and offshore locations. There, larger waves can be expected resulting in a need for evaluating the impact of wave motion on the performance of FPV systems. Wave-induced movements of the PV panels can lead to varying irradiance levels, also within the string of panels, causing wave-induced loss (WIL). In this work, we have developed a model to simulate WIL for FPV systems. The model consists of three main modelling steps, wave-structure-interaction modelling, irradiance modelling and electrical modelling, where the second step has been experimentally verified. In the model, the in-house software 3DFloat is used to simulate the movement of the PV panels, and existing python libraries are used for the irradiance and electrical modelling. With this method, WIL has been simulated for different scenarios, to study the influence of different locations, sea states, times of year, string lengths, tilt angles and wave directions. The simulated WIL varied greatly with the chosen conditions. As an example, the WIL ranged from 3.3% for a significant wave height of 0.25 m to 6.7% for a significant wave height of 1 m.</div></div>","PeriodicalId":428,"journal":{"name":"Solar Energy","volume":"293 ","pages":"Article 113439"},"PeriodicalIF":6.0,"publicationDate":"2025-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143739642","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Viability of performance improvement of degraded Photovoltaic plants through reconfiguration of PV modules

IF 6 2区工程技术

Solar Energy Pub Date : 2025-03-30 DOI: 10.1016/j.solener.2025.113451

Ruchita Korgaonkar, Narendra Shiradkar

{"title":"Viability of performance improvement of degraded Photovoltaic plants through reconfiguration of PV modules","authors":"Ruchita Korgaonkar, Narendra Shiradkar","doi":"10.1016/j.solener.2025.113451","DOIUrl":"10.1016/j.solener.2025.113451","url":null,"abstract":"<div><div>This paper presents an analysis of the techno-economic viability of performance improvement of degraded PV plants through the reconfiguration of PV modules. To the best of the authors’ knowledge, this is the first time the analysis is presented in the literature after taking into account the effect of various degradation modes and the cost of I-V tracing of the modules. Various reconfiguration strategies are explored and they are benchmarked against each other by considering the gain in the performance and the cost of required module swaps to realize the respective strategies. A Python-based bottom-up model of a utility-scale PV plant is developed for this purpose by using a single diode model for each cell in each module. The economic feasibility of reconfiguration is analyzed for two representative countries − India and USA to contrast the effect of different labor costs. Eventually, guidelines for conditions under which reconfiguration could be a viable option to improve the generation of a degraded PV plant are presented. It is shown that reconfiguration may make economic sense when some / all of the following conditions are met: i) small sample of module-level I-V is measured ii) labor costs are low iii) degradation mechanism results in non-uniform / localized degradation iv) payback periods are short (< 2 years).</div></div>","PeriodicalId":428,"journal":{"name":"Solar Energy","volume":"293 ","pages":"Article 113451"},"PeriodicalIF":6.0,"publicationDate":"2025-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143735181","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