Energy Science & Engineering最新文献

{"title":"Economic and Technical Assessment of Wind Potential Using SARIMAX Time Series Models: Wind Speed Forecasting and Analysis","authors":"Mohammad Amin Valizadeh,&nbsp;Iman Khorsandi Shamir,&nbsp;Abolfazl Ahmadi,&nbsp;Mojtaba Mirhosseini","doi":"10.1002/ese3.70397","DOIUrl":"10.1002/ese3.70397","url":null,"abstract":"<p>The worldwide transition to renewable energy is gaining momentum, highlighting the importance of identifying and utilizing local wind resources as a viable approach to decrease dependence on fossil fuels and promote sustainable energy security. This investigation examined 15 years of wind speed data (2010–2024) from Khaf, Iran, utilizing machine-learning methods alongside statistical modeling and economic evaluation to deliver an in-depth assessment of the area's wind energy potential. The Weibull probability distribution was utilized to define the statistical characteristics of wind speeds and to determine the parameters necessary for calculating wind power density. The forecast for monthly mean wind speeds in 2025 was conducted using SARIMAX and Prophet models, resulting in a high level of predictive accuracy (R² = 0.85–0.98), which facilitates accurate estimation of wind energy capacity. This study combines machine-learning forecasting, statistical methods, and economic analysis to offer a practical framework for evaluating the regional energy profile and enhancing turbine selection, thereby contributing to the sustainable development of wind farms in Khaf.</p>","PeriodicalId":11673,"journal":{"name":"Energy Science & Engineering","volume":"14 2","pages":"973-998"},"PeriodicalIF":3.4,"publicationDate":"2026-02-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://scijournals.onlinelibrary.wiley.com/doi/epdf/10.1002/ese3.70397","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146217430","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":"Position Control of Electro-Hydraulic Actuator System With Disturbances Compensation","authors":"Yunfei Wang,&nbsp;Haigang Ding,&nbsp;Jiaxiang Man","doi":"10.1002/ese3.70384","DOIUrl":"10.1002/ese3.70384","url":null,"abstract":"<p>This paper proposes a new output feedback controller based on global fast terminal sliding mode with disturbances rejection to achieve accurate position tracking control for electro-hydraulic cylinder system. The typical mathematical model of the asymmetric cylinder electro-hydraulic system is established as Brunovsky form. Then high-order sliding mode observer is designed to estimate system states with only available displacement signal, and nonlinear disturbance observer is introduced to estimate and compensate for lumped disturbances including external disturbances, modeling errors and parameter uncertainties. Besides, a global fast terminal sliding mode control method is proposed to improve system convergence speed and position tracking accuracy, whose stability is proved through Lyapunov theory. Furthermore, simulations are carried out to verify the estimation performance of the designed state observer and disturbance observer, and the estimation accuracy of the disturbance observer reaches 82.71%. Finally, an asymmetric cylinder test rig is constructed and the experimental results show that the tracking accuracy of sinusoidal motion with 100 mm amplitude and step motion with 20 mm amplitude can reach 97.2% and 93.9% respectively compared with the total stroke of the motion, indicating the superiority of the designed output feedback controller.</p>","PeriodicalId":11673,"journal":{"name":"Energy Science & Engineering","volume":"14 2","pages":"831-842"},"PeriodicalIF":3.4,"publicationDate":"2026-02-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://scijournals.onlinelibrary.wiley.com/doi/epdf/10.1002/ese3.70384","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146223910","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":"Optimized Asymmetrical Fuzzy-2DOFTIDF Controller for LFC of Three-Area Multi-Sources Interconnected Power System Along With HAE-FC and UPFC Using a New SOA Algorithm","authors":"Getaneh Mesfin Meseret,&nbsp;M. Bala Anand","doi":"10.1002/ese3.70389","DOIUrl":"10.1002/ese3.70389","url":null,"abstract":"<p>The increasing complexity and scale of modern power systems, combined with fluctuations in demand, modeling uncertainties, evolving network configurations, and time-varying characteristics, make load frequency control (LFC) increasingly challenging. Large frequency deviations can disrupt electric clock synchronization, alter AC motor speeds, affect magnetizing currents in transformers and induction motors, and impair the coordinated operation of systems. Conventional control methods often fail to effectively manage these uncertainties. This study evaluates LFC performance in a multi-area, multi-source interconnected power system using a novel Asymmetrical-Fuzzy-based Two-Degree-of-freedom Tilt-Integral-Derivative Controller with Low-Pass-Filter (AF-2DOF-TIDF) as a secondary control mechanism. The system comprises three unequal areas that integrate hybrid-thermal and hydropower plants, representing real-world asymmetries in capacity, inertia, and interconnections. The dynamic influence of Hydrogen-Aqua-Electrolyzer-Fuel-Cell (HAE-FC) units is analyzed relative to conventional setups. Controller parameters for TIDF, 2DOF-TIDF, and AF-2DOF-TIDF are optimized using the Skill Optimization Algorithm (SOA). Simulation results demonstrate that the proposed controller significantly enhances dynamic response, reducing overshoot, damping oscillations, and shortening settling times. The integration of a Unified Power Flow Controller (UPFC) further enhances frequency and power stability. Sensitivity analyses confirm the robustness of the proposed controller under varying loads and parameter uncertainties, with an average reduction of 68.4% in oscillation amplitude achieved.</p>","PeriodicalId":11673,"journal":{"name":"Energy Science & Engineering","volume":"14 2","pages":"866-886"},"PeriodicalIF":3.4,"publicationDate":"2026-02-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://scijournals.onlinelibrary.wiley.com/doi/epdf/10.1002/ese3.70389","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146224069","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":"Performance Analysis of a Cooling-Heating-Electricity-Ammonia Multigeneration System Integrated Concentrated Photovoltaic Photothermal and Operation Strategy","authors":"Kai Ding,&nbsp;Ximin Cao,&nbsp;Yanchi Zhang","doi":"10.1002/ese3.70392","DOIUrl":"10.1002/ese3.70392","url":null,"abstract":"<p>The integration of the concentrated photovoltaic photothermal (CPVT) process with energy storage is an effective approach to address the volatility of direct normal irradiance. However, the direct adoption of electrical energy storage is confronted with issues related to energy density and cost. To address this, this article introduces an operation strategy utilizing a hydrogen and biomass collaborative energy storage to regulate the power supply and demand. When power falls short of demand, a hydrogen fuel cell (HFC) is deployed to bridge the deficit, and the remaining shortfall is offset through biopower. This ultimately provides a constant power load, as well as heat, cooling, and ammonia. Additionally, it includes CPVT, wind turbines, biomass gasification, gas turbine, pressure swing adsorption, ammonia synthesis reactor, waste heat recovery unit, proton exchange membrane water electrolysis, and HFC. Consequently, the overall operational performance is evaluated on a monthly and yearly basis. The results show that the system achieves annual average energy and exergy efficiencies of 87.77% and 67.16%, respectively. For the biomass pyrolysis heating process, the CPVT provides 19.18 MWh of heat, and the heat required for biomass pyrolysis is 19.16 MWh. The system's yearly average outputs of electricity, heat, and cooling are 104.28, 7.90, and 11.56 MWh, respectively, with hydrogen and ammonia storage reaching 258.94 and 59.07 kg/h, respectively. Economically, the system achieves profitability in the 6th year with a net present value of 24.35 MUSD. This study provides theoretical foundations for constructing high-efficiency, high-stability solar concentrated photovoltaic photothermal utilization.</p>","PeriodicalId":11673,"journal":{"name":"Energy Science & Engineering","volume":"14 2","pages":"916-934"},"PeriodicalIF":3.4,"publicationDate":"2026-02-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://scijournals.onlinelibrary.wiley.com/doi/epdf/10.1002/ese3.70392","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146224034","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":"Study on Key Controlling Factors of Fracture Propagation by Shaped Charge Blasting in Coal Seams","authors":"Xin Yang,&nbsp;Yunfei Zuo,&nbsp;Yang Hu,&nbsp;Feiyan Tan,&nbsp;Wenxuan Pan","doi":"10.1002/ese3.70376","DOIUrl":"10.1002/ese3.70376","url":null,"abstract":"<p>Gas drainage is the fundamental approach to controlling gas disasters in coal mines. For single low-permeability coal seams, it should be supplemented by coal seam permeability enhancement technologies to improve gas drainage efficiency. This paper conducted a numerical simulations study on the key controlling factors affecting the fracturing effect of shaped charge blasting in coal seams, specifically focusing on the energy-gathering direction, in-situ stress, and borehole distance. Field tests were also carried out to evaluate the effectiveness of permeability enhancement. The results show that the energy-gathering direction significantly influences the distribution of the maximum fracture radius of the coal, and the maximum fracture radius in the energy-gathering direction is always larger than that in the non-energy-gathering direction. In-situ stress has a significant impact on the development of coal fractures. Under bidirectional symmetric in-situ stress conditions, the maximum fracture radius in both the energy-gathering and non-energy-gathering directions decreases as the in-situ stress increases. Under bidirectional asymmetric in-situ stress, the maximum fracture radius in the energy-gathering direction is negatively correlated with the lateral pressure coefficient, while the maximum fracture radius in the non-energy-gathering direction is positively correlated with it. The restraining effect of in-situ stress on fracture development is much greater than its promoting effect. In the non-energy-gathering direction, the maximum fracture radius initially increases and then decreases with increasing borehole distance, eventually stabilizing. The field tests show that shaped charge blasting can significantly improve the gas drainage efficiency in low-permeability coal seams. After implementing shaped charge blasting, the gas concentration and CH₄ flow rate increased 4.1 times and 8.8 times, respectively. The research results are of positive significance for deeply understanding the mechanism and technical practice of fracture propagation in shaped charge blasting in coal seams.</p>","PeriodicalId":11673,"journal":{"name":"Energy Science & Engineering","volume":"14 2","pages":"721-736"},"PeriodicalIF":3.4,"publicationDate":"2026-02-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://scijournals.onlinelibrary.wiley.com/doi/epdf/10.1002/ese3.70376","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146224316","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":"Research on the Mechanism of Sand Bridge Stuck Drill in Deep Coal and Rock Gas Horizontal Wells","authors":"Cheng Hui,&nbsp;Yong Ouyang,&nbsp;Zhifeng Duan,&nbsp;Xiaoyue Xu,&nbsp;Yuxiang Teng,&nbsp;Mingyang Liu,&nbsp;Hui Zhang,&nbsp;Long Chen","doi":"10.1002/ese3.70387","DOIUrl":"10.1002/ese3.70387","url":null,"abstract":"<p>Deep coal and rock gas, as an important component of unconventional natural gas, has attracted much attention due to its abundant reserves. However, in the current process of coal and rock gas development, underground accidents of burying drilling tools due to sand bridge stuck drill accidents often occur, which is one of the important difficulties faced by coal and rock gas wells at present. This paper systematically studies the mechanism of stuck drill caused by sand Bridges in deep coal-rock-gas horizontal Wells for the problem of stuck drill in sand Bridges. Studies show that collapse and block shedding caused by wellbore instability a key factors in the formation of sand bridges. Traditional models have limited applicability in deep coal-rock gas reservoirs because they ignore this factor. Based on the drilling conditions, considering the “bulldozer effect” and the influence of coal seam collapse and block drop, the calculation models of the stuck pipe resistance of permeable and impermeable sand bridges were established, respectively. The calculation methods of the sand bridge volume and the additional axial force and torque were derived. Through sensitivity analysis, the results show that the length of the sand bridge, the annular clearance, and the internal and external pressure difference significantly affect the stuck pipe resistance. Among them, the resistance effect of the impermeable sand bridge is particularly prominent. The engineering applicability of the model was verified through the example of the horizontal well for coal and rock gas in Changqing. The research proposes control measures such as optimizing the performance of drilling fluid, staged drilling, and controlling the drilling speed, providing theoretical support and technical reference for the drilling operation of deep coal, rock, and gas horizontal Wells.</p>","PeriodicalId":11673,"journal":{"name":"Energy Science & Engineering","volume":"14 2","pages":"854-865"},"PeriodicalIF":3.4,"publicationDate":"2026-02-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://scijournals.onlinelibrary.wiley.com/doi/epdf/10.1002/ese3.70387","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146224261","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":"Techno-Economic Analysis of Solar-Wind Hybrid Systems for Green Hydrogen Production in South Africa, KwaZulu-Natal Province","authors":"Sandile Mtolo,&nbsp;Sudesh Rathilal,&nbsp;Nomcebo Happiness Mthombeni,&nbsp;Katleho Moloi,&nbsp;Emmanuel Kweinor Tetteh","doi":"10.1002/ese3.70257","DOIUrl":"10.1002/ese3.70257","url":null,"abstract":"<p>Rising global energy demand and the climate crisis have intensified the pursuit of renewable energy, with green hydrogen emerging as a key alternative to fossil fuels. South Africa, heavily reliant on coal-based energy, faces pressure to decarbonize and transition to a green economy. In this study, the techno-economic feasibility of producing green hydrogen via seawater electrolysis with the Durban climatic conditions for a hybrid solar-wind battery system. Hybrid optimization of multiple energy resources (HOMER) was used to simulate and compare three configured systems (PV, wind and hybrid PV-wind battery) on net present cost (NPC), levelized cost of hydrogen (LCOH), and levelized cost of energy (LCOE). The hybrid system proved most effective, yielding LCOH of $8.94/kg and 45.8 tons/year of hydrogen, outperforming the standalone systems. With 97.5% excess electricity generated, the system supports scalability for grid integration, positioning green hydrogen as a viable, cost-effective path toward a sustainable energy future for South Africa.</p>","PeriodicalId":11673,"journal":{"name":"Energy Science & Engineering","volume":"14 2","pages":"701-720"},"PeriodicalIF":3.4,"publicationDate":"2026-02-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://scijournals.onlinelibrary.wiley.com/doi/epdf/10.1002/ese3.70257","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146680489","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":"A Practical Real-Time Observer-Based Radiation Prediction Algorithm for Solar Plants","authors":"S. Sepehr Tabatabaei,&nbsp;S. Ayoub Mirtavousi,&nbsp;Mohammadreza Dehghan","doi":"10.1002/ese3.70390","DOIUrl":"10.1002/ese3.70390","url":null,"abstract":"<p>The global transition toward clean energy has intensified interest in solar power, especially in regions with favorable geographical conditions. Despite the rapid development and deployment of solar plants, operational challenges remain, particularly in optimizing energy conversion in real time. This paper proposes a practical real-time solar radiation prediction model designed to enhance the performance of solar plants by forecasting available energy, thereby improving control during the energy conversion process. To this aim, an autonomous nonlinear dynamical model with an unknown drift function is considered. A Group Method of Data Handling (GMDH)-based identification approach, supported by a comprehensive experimental dataset, is employed to estimate the drift function and confirm the feasibility of the model. Once the nonlinear model is validated, a theoretical framework is developed to enable adaptive estimation of the model's states and parameters, eliminating the need for offline identification. Experimental results across multiple scenarios demonstrate the model's effectiveness in accurately identifying unknown parameters and state variables under different environmental conditions, geographic locations, and challenging cases such as partial shading. These results highlight the practical potential of the proposed method for improving real-time control and energy efficiency in solar plant operations.</p>","PeriodicalId":11673,"journal":{"name":"Energy Science & Engineering","volume":"14 2","pages":"887-904"},"PeriodicalIF":3.4,"publicationDate":"2026-02-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://scijournals.onlinelibrary.wiley.com/doi/epdf/10.1002/ese3.70390","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146217382","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":"Decentralized Wind Energy Systems as Catalysts for Urban Resilience: A Design Framework","authors":"Tian Cheng","doi":"10.1002/ese3.70172","DOIUrl":"10.1002/ese3.70172","url":null,"abstract":"<p>Confronting the escalating extreme weather events (EWEs) and intensifying winds, this study proposes an active response to these issues by exploring decentralized wind energy production for Peng Chau Island, Hong Kong. It integrates theoretical perspectives on energy democracy—empowering local communities through energy autonomy—and urban resilience, addressing vulnerabilities to climate-induced disruptions. Using a cost evaluation model based on the levelized cost of energy (LCOE) and computational fluid dynamics (CFD) for turbine placement, the research evaluates vertical-axis microturbines (VAMTs) and Magnus Vertical-Axis Turbines (MVTs). Results show VAMTs require 609 units for an approximated US$4–5 million to meet the island's 6,660,000 kWh annual demand from peri-urban inhabitants, outperforming MVTs'’ $34-40 million for 218 units and conventional offshore turbine's $14–20 million. Beyond cost, decentralized systems mitigate EWE risks by reducing reliance on centralized grids, fostering resilience in remote urban settings. This study highlights how such systems advance sustainable development by linking practical energy solutions to broader climate adaptation and energy justice.</p>","PeriodicalId":11673,"journal":{"name":"Energy Science & Engineering","volume":"14 2","pages":"682-700"},"PeriodicalIF":3.4,"publicationDate":"2026-02-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://scijournals.onlinelibrary.wiley.com/doi/epdf/10.1002/ese3.70172","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146224118","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":"Study on the Thermal Abuse Damage Characteristics of Lithium Iron Phosphate Battery and Its Detection Method","authors":"Li Jin,&nbsp;Ertao Lei,&nbsp;Junkun Zhang,&nbsp;Quanhui Li,&nbsp;Kai Ma,&nbsp;Quan Shi,&nbsp;Feng Li","doi":"10.1002/ese3.70394","DOIUrl":"10.1002/ese3.70394","url":null,"abstract":"<p>Structural damage to batteries is a major contributing factor to safety incidents in electrochemical energy storage systems. Among the various types of damage, thermal abuse is particularly prevalent. However, effective methods for quantifying and detecting such damage remain in the early stages of development. Further investigations are required to gain a deeper understanding of the characteristics of battery structural damage and develop more accurate detection techniques. This study explores the thermal abuse behavior of lithium iron phosphate (LFP) batteries. The study examines the damage process induced by thermal abuse and presents a detection method that utilizes the generation of H₂ and CO as diagnostic markers. This method was validated under four distinct operational conditions, demonstrating its effectiveness in identifying thermal abuse. The findings introduce a novel gas-based approach for detecting structural damage. This method utilizes H₂ and CO as universal markers, enabling it to overcome the limitations of traditional impedance and temperature monitoring techniques. The method demonstrates exceptional efficacy in real-time identification of thermal abuse across various operating conditions.</p>","PeriodicalId":11673,"journal":{"name":"Energy Science & Engineering","volume":"14 2","pages":"962-972"},"PeriodicalIF":3.4,"publicationDate":"2026-02-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://scijournals.onlinelibrary.wiley.com/doi/epdf/10.1002/ese3.70394","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146256278","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}