International Journal of Energy Research最新文献

{"title":"Optimization of Narrowed Chimney Section Height for Improving Flow and Performance Features of a Solar Chimney Power Plant: A CFD Approach","authors":"Mahmut Kaplan","doi":"10.1155/er/1959734","DOIUrl":"https://doi.org/10.1155/er/1959734","url":null,"abstract":"<div>\u0000 <p>The depletion of fossil fuels and climate change are major worldwide problems. Unlike hydrocarbon resources, solar energy is a clean, inexhaustible, and sustainable power source to meet all of humankind’s energy demands. Solar chimney power plants (SCPPs) having a simple design are capable of generating large-scale solar powered electricity. The systems have three primary components: a chimney, turbine, and collector. The optimization of the chimney geometry plays a key role in achieving the peak efficiency of SCPPs. In the current work, a three-dimensional (3D) model on the basis of the Manzanares prototype with a chimney height (<i>H</i>) of 194.6 m and radius (<i>R</i>) of 5.08 m is developed to identify optimal height for the innovative constricted chimney section configurations via ANSYS FLUENT. The height of the narrowed chimney sections varies as 1/4, 1/8, 1/16, and 1/32 of <i>H</i> for a fixed radius as 1/3 of <i>R</i>. The findings indicate that the power output (<i>P</i>_<i>o</i>) increases with decreasing the narrowed section height from <i>H</i>/4 to <i>H</i>/32 owing to enhanced mass flow rate and turbine pressure drop. The highest <i>P</i>_<i>o</i> of 65.9 kW is gained with the configuration with the height of <i>H</i>/32 and <i>P</i>_<i>o</i> enhances by 43.3% compared to the base case at 1000 W/m². The novel equations are improved from the numerical data to estimate the performance features. Besides, the impact of the narrowed section radius on the performance is examined to optimize the dimensions of the constricted section. It is found that a decrease in the narrowed section radius from <i>R</i>/3 to <i>R</i>/5 for a constant height of <i>H</i>/32 leads to a reduction in <i>P</i>_<i>o</i> by 1.2% because of a remarkable decrease in mass flow rate. <i>H</i>/32 and <i>R</i>/3 can be optimum height and radius value for the reduced chimney section to augment system efficiency.</p>\u0000 </div>","PeriodicalId":14051,"journal":{"name":"International Journal of Energy Research","volume":"2025 1","pages":""},"PeriodicalIF":4.3,"publicationDate":"2025-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1155/er/1959734","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144751512","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Safety Charging Boundary Prediction of Ternary Lithium-Ion Batteries Based on the SP+ Model","authors":"You Xu,&nbsp;Zhousheng Zhang,&nbsp;Yuqian Fan,&nbsp;Jinxiang Yao,&nbsp;Ziyu Zhao,&nbsp;Shengzhe Liu","doi":"10.1155/er/3801048","DOIUrl":"https://doi.org/10.1155/er/3801048","url":null,"abstract":"<div>\u0000 <p>The fast charging technology is the trend in the development of new energy vehicles. Due to the lack of precise expression about the coupling relationship between the charging conditions and the internal reaction mechanisms of the battery, it leads to several problems such as low charging efficiency, rapid battery aging, and insufficient safety prediction, which may significantly impact the promotion of new energy vehicles. This paper focused on ternary lithium-ion batteries and established a relationship between the operating voltage, equilibrium potential, internal resistance polarization potential, and solid–liquid phase polarization potential during the charging process of ternary lithium-ion batteries based on the improvement of the single-particle model (SP+). The models about equilibrium potential, internal resistance polarization potential, and solid–liquid phase polarization potential were built individually. According to the phenomenon that the negative electrode electromotive force will be lower than 0 when the battery is overcharged, the decoupling method for the positive and negative electrode potentials of ternary lithium-ion batteries was proposed and the safety charging constraint equation for ternary lithium-ion batteries was established. A 2 Ah 18,650 batteries were carried out in the multicondition battery tests and the coefficients of the operating voltage relationship expression can be solved. According to the charging constraint equation, the safety charging boundary map can be drawn based on the safety charging current and duration. In order to verify the effectiveness of the method proposed, a comparison test was carried out based on different charging conditions for 2, 3, and 4 C and 1000 cycle capacities at 25°C. The results showed that the proposed method can effectively improve the battery charging efficiency and the service life and the proposed method had a short system computation time and was suitable for real-time applications in embedded systems. It can be a solution for rapid energy replenishment of new energy vehicles.</p>\u0000 </div>","PeriodicalId":14051,"journal":{"name":"International Journal of Energy Research","volume":"2025 1","pages":""},"PeriodicalIF":4.3,"publicationDate":"2025-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1155/er/3801048","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144740213","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Distributed Coordinated Control Strategy of Multienergy Storage in DC Microgrid Based on Improved Consensus Algorithm","authors":"Na Zhi,&nbsp;Yuhang Yang,&nbsp;Hang Zhang","doi":"10.1155/er/1894438","DOIUrl":"https://doi.org/10.1155/er/1894438","url":null,"abstract":"<div>\u0000 <p>To address the imbalance in the state of charge (SOC) of distributed energy storage units (DESUs) in DC microgrids (DCMGs), this article proposes an improved droop control strategy. First, the droop coefficient of the energy storage device is linked to the SOC nested power function, enabling the energy storage unit to adaptively adjust the droop coefficient according to the SOC during charging and discharging. Second, a variable acceleration factor is introduced to further accelerate the equalization speed when the SOC difference is reduced. Current sharing compensation is added to eliminate the influence of line impedance mismatch on power distribution accuracy and a bus voltage compensation strategy is employed to maintain bus voltage stability. The improved consensus algorithm is used to accelerate the convergence speed of consistency and the information of adjacent nodes is exchanged to obtain the average value of the system. The stability of the system is demonstrated through frequency domain analysis. Finally, the proposed adaptive droop control strategy is validated by numerical simulation and hardware-in-the-loop experiments, proving the effectiveness of the proposed strategy.</p>\u0000 </div>","PeriodicalId":14051,"journal":{"name":"International Journal of Energy Research","volume":"2025 1","pages":""},"PeriodicalIF":4.3,"publicationDate":"2025-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1155/er/1894438","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144740152","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Tailoring Oxygen Vacancy Concentration and Triple-Phase Boundaries in Transition Metal-Doped La0.8Sr0.2MnO3–δ Air Electrodes for High-Performance Solid Oxide Cells","authors":"Dayoung Park,&nbsp;Jun-Young Park,&nbsp;Hyeongwon Jeong,&nbsp;Yo Han Kim,&nbsp;Jae-ha Myung","doi":"10.1155/er/6026869","DOIUrl":"https://doi.org/10.1155/er/6026869","url":null,"abstract":"<div>\u0000 <p>Solid oxide cells (SOCs) have attracted significant attention as promising energy conversion systems due to their reversibility and high efficiency. La_0.8Sr_0.2MnO_{3–<i>δ</i>} (LSM) is a conventionally used air electrode in SOCs but suffers from low electrochemical activity at low operating temperatures, limiting its overall cell performance. This study presents the development of transition metal-doped LSM perovskite oxides to enhance electrochemical activity. The developed electrodes, sintered at various temperatures, exhibited improved performance in both the oxygen reduction reaction (ORR) and oxygen evolution reaction (OER). This enhancement was primarily attributed to two key factors: the high concentration of oxygen vacancies (<span></span><math></math>) and the increased density of triple-phase boundaries (TPBs). In half-cell tests, La_0.8Sr_0.2Mn_0.8Co_0.2O_{3–<i>δ</i>} (LSMCo)–scandia stabilized zirconia (ScSZ) exhibited an eight-fold reduction in polarization resistance (0.034 Ω cm² versus 0.29 Ω cm² for undoped LSM–ScSZ) at 800°C. Furthermore, a single cell with the LSMCo–ScSZ electrode achieved a maximum power density of 0.7 W/cm² in fuel cell mode and a current density of 0.8 A/cm² in electrolysis cell mode (at 1.3 V) under 50% H₂O/H₂ fuel conditions at 800°C. These results provide a viable and straightforward strategy for enhancing the electrochemical activity of the air electrodes in diverse and sustainable energy applications.</p>\u0000 </div>","PeriodicalId":14051,"journal":{"name":"International Journal of Energy Research","volume":"2025 1","pages":""},"PeriodicalIF":4.3,"publicationDate":"2025-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1155/er/6026869","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144740153","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Conveying Performance, Mechanical Strength, and Microstructural Characteristics of Alkali-Activated Fly Ash-Cemented Paste Backfill","authors":"Ming Li,&nbsp;Qihang Li,&nbsp;Xingang Li,&nbsp;Shenyang Ouyang,&nbsp;Zuo Sun,&nbsp;Hongzeng Li,&nbsp;Rui Li","doi":"10.1155/er/2468239","DOIUrl":"https://doi.org/10.1155/er/2468239","url":null,"abstract":"<div>\u0000 <p>Fly ash (FA) is widely used in the preparation of cement paste backfill material, but its cement substitution rate is limited by its degree of hydration. In this study, the conveying performance, mechanical strength, and microstructural characteristics of the prepared alkali-activated FA-cemented paste backfill (AAF-CPB) were investigated through bleeding rate tests, slump tests, uniaxial compressive strength tests, scanning electron microscopy (SEM), and X-ray diffraction (XRD). The results show that the bleeding rate range of the prepared AAF-CPB is 1.05%−6.96%, the slump is 162–218 mm, the early strength range is 0.72–2.63 MPa, and the final strength range is 3.28–10.68 MPa; the slurry concentration, gangue particle size, FA replacement rate, and binder-coal gangue (B-CG) ratio have a significant impact on the bleeding rate; slurry concentration also has a significant impact on slump; slurry concentration has significant effects on early strength and less significant effects on final strength of the AAF-CPB, while FA replacement rate has a higher impact on its final strength than early strength. When FA replacement rate is 30%, final strength of the AAF-CPB can be improved significantly. The optimal ratio of the AAF-CPB obtained from the experiment should be slurry concentration of 84%, gangue particle size of 0–5 mm, B-CG ratio of 0.8, FA replacement rate of 30%, and sodium hydroxide concentration <i>C</i>_<i>NaOH</i> of 0.6 mol·L⁻¹.</p>\u0000 </div>","PeriodicalId":14051,"journal":{"name":"International Journal of Energy Research","volume":"2025 1","pages":""},"PeriodicalIF":4.3,"publicationDate":"2025-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1155/er/2468239","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144725406","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Highly Sensitive, Thin, and Conformal MoS2 Thermistors for In Situ Thermal Characterization of Lithium-Ion Batteries","authors":"Dianhong Huo,&nbsp;Jungwook Choi","doi":"10.1155/er/2898099","DOIUrl":"https://doi.org/10.1155/er/2898099","url":null,"abstract":"<div>\u0000 <p>Lithium-ion batteries (LIBs) experience continuous temperature changes during operation and can overheat due to overcharging and short circuits, leading to severe safety hazards, such as thermal runaway. As temperature during the operation is a direct indicator of the safety status of LIBs, developing a high performance thermistor that is capable of sensitively monitoring the temperature changes of LIBs in real time is crucial. In this study, we developed, fabricated, and evaluated a highly sensitive, thin, and flexible temperature sensor composed of 2D MoS₂ as a thermosensitive material. The sensor can be conformally integrated onto the surface of LIBs without interfering with the assembly of other components. The MoS₂ thermistor exhibits a high temperature coefficient of resistance (TCR) of −1.94%/°C (corresponding thermal sensitivity is 200 mV/°C) with a high linearity (<i>R</i>² of 0.98) in the 20–60°C temperature range. This sensitivity is three to four orders of magnitude higher than that of thermocouples (usually tens of μV/°C) that are conventionally used for the temperature monitoring of LIBs. Moreover, the MoS₂ thermistor exhibits an insignificant response to bending, with resistance changes of less than 0.3% under a bending angle of 40°, which the sensor could experience owing to LIB swelling during operation. The spatial temperature changes of LIBs during their charge-discharge cycles can also be monitored accurately in real time by integrating multiple MoS₂ thermistors. Our thermistor provides sensitivity, stability, simplicity, and portability, which are critical for the continuous thermal characterization of LIBs and the reduction of the risk of thermal runaway.</p>\u0000 </div>","PeriodicalId":14051,"journal":{"name":"International Journal of Energy Research","volume":"2025 1","pages":""},"PeriodicalIF":4.3,"publicationDate":"2025-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1155/er/2898099","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144725744","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Controlling Host–Guest Interactions in Poly(ethylenimine) Impregnated Silica Adsorbents for CO2 Capture","authors":"Suyeon Nam,&nbsp;Tae-Nam Kim,&nbsp;Jongkook Hwang","doi":"10.1155/er/5807422","DOIUrl":"https://doi.org/10.1155/er/5807422","url":null,"abstract":"<div>\u0000 <p>Poly(ethylenimine)-impregnated silica (PEI/SiO₂) adsorbents have garnered significant attention as scalable and sustainable solutions for carbon dioxide (CO₂) capture owing to their high adsorption capacity, facile synthesis, and cost-effectiveness. Despite continued research efforts, several critical challenges remain to be addressed to fully optimize these materials—namely, enhancing CO₂ adsorption capacity, improving adsorption kinetics, minimizing regeneration (desorption) energy requirements, and ensuring long-term operational stability. This review first examines the fundamental properties of PEI as a CO₂ adsorbent and delineates the primary barriers to its practical deployment. Subsequently, key strategies to modulate host–guest interactions are discussed, with emphasis on: (1) tailoring the pore structure of silica supports, (2) optimizing surface chemistry to improve PEI dispersion, (3) incorporating additives to regulate host–guest interactions, and (4) chemically modifying PEI to enhance stability and the heat of adsorption. Finally, critical future directions are outlined for advancing PEI/SiO₂ adsorbents, with a particular focus on addressing the engineering challenges essential for large-scale implementation. By integrating rational material design with process-level optimization, this review highlights viable pathways for the effective translation of these adsorbents into practical CO₂ capture technologies.</p>\u0000 </div>","PeriodicalId":14051,"journal":{"name":"International Journal of Energy Research","volume":"2025 1","pages":""},"PeriodicalIF":4.3,"publicationDate":"2025-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1155/er/5807422","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144725742","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Comprehensive Regression-Based Sensitivity Analysis of Geometric Parameter Effects on Gas Turbine Nozzle Performance and Stage Characteristics","authors":"Mehdi Basati Panah,&nbsp;Anton Balakin,&nbsp;Mikhail Laptev,&nbsp;Anton Pulin,&nbsp;Viktor Barskov,&nbsp;Viktor Rassokhin,&nbsp;Kseniia Usanova,&nbsp;Ivan Talabira,&nbsp;Gleb Roshchenko,&nbsp;Andrey Shirokikh,&nbsp;Mikhail Kanakin,&nbsp;Kirill Alisov","doi":"10.1155/er/7548518","DOIUrl":"https://doi.org/10.1155/er/7548518","url":null,"abstract":"<div>\u0000 <p>The global rise in electrical energy demand is placing strain on conventional power generation methods, such as thermal, hydroelectric, and nuclear plants. These sources are often insufficient to meet increasing demand, particularly in remote areas where grid connectivity is economically unfeasible. One potential solution is the implementation of localized power generation systems, such as low-flow turbines, which are highly suitable for small-scale energy production. These turbines offer an efficient means of supplying power to isolated regions, bypassing the need for large capital investments in new infrastructure. This study focuses on improving the efficiency of low-flow turbines by analyzing the geometric characteristics of their critical components, particularly the nozzle apparatus. The nozzle plays a pivotal role in shaping flow dynamics, which significantly influences the turbine’s overall performance. Using regression analysis, the research evaluates the impact of various geometric parameters on turbine efficiency, identifying key empirical relationships and sensitivity factors. The results provide a comprehensive understanding of how geometric modifications can affect flow processes within the turbine stage, ultimately enhancing performance. This work contributes to optimizing low-flow turbines for small-scale power generation, addressing energy challenges in remote and underserved regions.</p>\u0000 </div>","PeriodicalId":14051,"journal":{"name":"International Journal of Energy Research","volume":"2025 1","pages":""},"PeriodicalIF":4.3,"publicationDate":"2025-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1155/er/7548518","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144725743","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Multiobjective Probabilistic Planning of Energy Hub With Hydrogen Storage Technologies Considering Demand Response Programs","authors":"Shahriar Karimian,&nbsp;Majid Moazzami,&nbsp;Bahador Fani,&nbsp;Ghazanfar Shahgholian","doi":"10.1155/er/4644615","DOIUrl":"https://doi.org/10.1155/er/4644615","url":null,"abstract":"<div>\u0000 <p>This paper develops a stochastic bi-objective energy management system (EMS) for an integrated energy hub (EH) comprising photovoltaic (PV) arrays, wind turbines (WTs), a dual-fuel boiler, combined heat and power (CHP) generation, electric vehicle (EV) charging infrastructure, and hydrogen storage systems, interconnected with the main grid. The proposed EMS framework simultaneously minimizes operational expenditures (OPEX) and carbon emissions while addressing uncertainties in renewable generation and load demand through probabilistic modeling and demand response programs (DRPs). A novel modified multi-objective grasshopper optimization algorithm (MMOGOA) with adaptive mutation operators is introduced to solve this complex optimization problem, demonstrating superior convergence characteristics and 7.2% lower OPEX compared to conventional MOEAs (Non-dominated Sorting Genetic Algorithm [NSGA-II] and MOPSO) in baseline scenarios. Comprehensive simulations reveal that demand response program (DRP) implementation achieves significant reductions (18.87% in costs and 14.62% in emissions), while uncertainty incorporation increases costs by 10% and emissions by 4.38%, with MMOGOA consistently maintaining performance dominance across all operational regimes. The results quantitatively highlight the importance of optimizing DRP participation and managing uncertainties to improve the efficiency and sustainability of energy management systems (EMSs).</p>\u0000 </div>","PeriodicalId":14051,"journal":{"name":"International Journal of Energy Research","volume":"2025 1","pages":""},"PeriodicalIF":4.3,"publicationDate":"2025-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1155/er/4644615","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144716570","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"High-Accuracy Bandgap Prediction and Classification in Hybrid and Inorganic Halide Perovskites Using Advanced Machine Learning Techniques","authors":"Alireza Sabagh Moeini,&nbsp;Fatemeh Shariatmadar Tehrani,&nbsp;Alireza Naeimi-Sadigh","doi":"10.1155/er/1215175","DOIUrl":"https://doi.org/10.1155/er/1215175","url":null,"abstract":"<div>\u0000 <p>Hybrid and inorganic halide perovskites (HP) have garnered significant attention for their applications in solar cells, LEDs, and sensors due to their exceptional electronic and optical properties. The accurate prediction and classification of bandgaps in these materials are crucial for advancing their technological potential. Traditional methods like Density Functional Theory (DFT) are computationally expensive, motivating the use of machine learning (ML) as a faster and more efficient alternative. In this study, we analyze 7382 hybrid and inorganic HP using a diverse set of ML models to classify materials based on whether they exhibit zero or nonzero bandgaps, and to predict their bandgap values. For regression tasks, AdaBoost Regressor (ABR), decision tree regressor (DTR), and gradient boosting regressor (GBR) were employed, while gradient boosting machines (GBM), decision tree (DT), and Multilayer Perceptron (MLP) were used for classification. Evaluation metrics for prediction included mean absolute error (MAE), mean squared error (MSE), and the <i>R</i>². For classification, metrics, such as accuracy, precision, recall, F1-score, area under the ROC curve (AUC-ROC), and area under the precision-recall curve (AUC-PR) were utilized. Results indicate that ABR achieved the highest prediction accuracy (MSE ≈ 0.074 eV, MAE ≈ 0.088 eV, <i>R</i>² ≈ 91.1% for direct bandgaps; MSE ≈ 0.041 eV, MAE ≈ 0.076 eV, <i>R</i>² ≈ 93.4% for indirect bandgaps). In classification, the GBM model outperformed others, achieving 96% and 97% accuracy for direct and indirect bandgaps, respectively. Feature analysis revealed that elemental properties, such as valence and group of constituent elements, particularly their mean and standard deviation, play a dominant role in bandgap determination. These findings highlight the potential of ML-driven approaches in accelerating perovskite material discovery and optimizing their electronic properties for future optoelectronic applications.</p>\u0000 </div>","PeriodicalId":14051,"journal":{"name":"International Journal of Energy Research","volume":"2025 1","pages":""},"PeriodicalIF":4.3,"publicationDate":"2025-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1155/er/1215175","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144714955","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}