Sustainable Energy Technologies and Assessments最新文献

{"title":"Advances in bioelectrochemical constructed wetlands for clean water and green energy","authors":"Manoj Kumar ,&nbsp;Naveen Chand ,&nbsp;Harshit Tiwari ,&nbsp;Vishal Anand ,&nbsp;Sanjeev Kumar Prajapati ,&nbsp;Brijesh Kumar Yadav ,&nbsp;Asheesh Kumar Yadav","doi":"10.1016/j.seta.2025.104536","DOIUrl":"10.1016/j.seta.2025.104536","url":null,"abstract":"<div><div>Self-sustaining and eco-friendly technologies for wastewater treatment are crucial for promoting sustainable development goals and advancing circular economy approach. Therefore, here we review the popular nature-based wastewater treatment systems i.e., constructed wetlands (CWs). The review focuses on recent advancement in the field of CWs, with main focus on bio-electrochemical systems (BES) integration with constructed wetlands (BES-CWs). The integration of CWs with BES provides a self-sustaining and an eco-friendly option for sustainable wastewater treatment and energy production. However, to date pilot scale applicability of these systems has been limited due to low energy out-put. Hence, in this review we discuss BES-CWs systems, evolution and advancement, highlighting the research advancements over the years. The discussion includes advancement in design configuration, filter media used, electrode material and microbial communities which influence the performance of the BES-CWs system and subsequently highlight limiting factors for pilot scale applicability. The review findings reveal that BES-CWs systems have strong potential for wastewater treatment, but special attention to the design, substrate and electrode material is required to enhance the energy out-put. The, review analysis will assist in future research work and offer new avenues for optimization of BES-CWs for wastewater treatment and energy production.</div></div>","PeriodicalId":56019,"journal":{"name":"Sustainable Energy Technologies and Assessments","volume":"82 ","pages":"Article 104536"},"PeriodicalIF":7.0,"publicationDate":"2025-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144907270","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}

{"title":"Estimation of bioenergy potential based on collectable biomass: An important step for sustainable biomass utilization","authors":"Sandip Gangil,&nbsp;Vinod Kumar Bhargav,&nbsp;Pushpraj Diwan,&nbsp;Manish Kumar,&nbsp;Parmanand Sahu","doi":"10.1016/j.seta.2025.104535","DOIUrl":"10.1016/j.seta.2025.104535","url":null,"abstract":"<div><div>The rising need for renewable energy, as well as the desire to lessen reliance on fossil fuels, has sparked renewed interest in agricultural residue use. Crop residues, which consist of stalks, leaves, and straw left over from harvest, represent a significant potential supply of biomass for biofuel production, power generation, and other industrial purposes. Madhya Pradesh, a prominent contributor to India’s soybean and wheat production, generates significant quantities of crop residue. This study investigates the bioenergy potential of collectable residues derived from these dominant crops within the state. A survey was conducted to estimate soybean-wheat biomass of the central India and their energy potential. A positive correlation between crop yield and collectable biomass yield for both wheat and soybean, indicating that higher crop yields are associated with increased biomass availability.The total residue potential of soybean-wheat crop at Madhya Pradesh was observed to be 7.80 MT, in which 2.98 MT of residue available as surplus. The bioenergy potential of the Madhya Pradesh with soybean-wheat surplus residue estimated of about 79.31 PJ. Utilizing agricultural residue as bioenergy offers multifaceted benefits, including reduced landfill waste, decreased fossil fuel dependence, enhanced rural infrastructure, improved public health, increased farmer income, job creation, and a net reduction in CO2 emissions by displacing fossil fuels.</div></div>","PeriodicalId":56019,"journal":{"name":"Sustainable Energy Technologies and Assessments","volume":"82 ","pages":"Article 104535"},"PeriodicalIF":7.0,"publicationDate":"2025-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144912780","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}

{"title":"Grid-forming wind turbine based on novel wind-speed-measurement-free deloading control","authors":"Zening Wang,&nbsp;Yu Tang","doi":"10.1016/j.seta.2025.104520","DOIUrl":"10.1016/j.seta.2025.104520","url":null,"abstract":"<div><div>Traditional wind turbine deloading relies on wind speed measurement, which is often inaccurate due to sensor limitations, affecting deloading precision. This study first addresses the challenge of reference power assignment in the constant-speed region by proposing an additional power control strategy based on adaptive reference power assignment via rotor speed feedback, eliminating power fluctuations and enhancing wind energy utilization. Secondly, a novel wind-speed-measurement-free deloading method is introduced: at low wind speeds, deloading is achieved by adjusting the optimal power coefficient; at medium and high wind speeds, a unique mapping between additional deloading power and pitch angle in the constant-speed region is established and fitted into a function using least squares. By measuring additional power and inputting it into the fitted curve, the corresponding pitch angle reference is obtained without wind speed measurement. In the power-limit region, smooth pitch angle transition is achieved, constraining power to a specified value. Grid-forming control with matching control is adopted to mitigate DC voltage fluctuations.</div></div>","PeriodicalId":56019,"journal":{"name":"Sustainable Energy Technologies and Assessments","volume":"82 ","pages":"Article 104520"},"PeriodicalIF":7.0,"publicationDate":"2025-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144907153","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}

{"title":"Multi-agent-based energy management strategy for a novel electric-flywheel hybrid electric vehicle","authors":"Yanhong Lin ,&nbsp;Tiezhu Zhang ,&nbsp;Jichao Hong ,&nbsp;Hongxin Zhang ,&nbsp;Jie Zhou ,&nbsp;Yuefeng Liao ,&nbsp;Benyou Liu","doi":"10.1016/j.seta.2025.104538","DOIUrl":"10.1016/j.seta.2025.104538","url":null,"abstract":"<div><div>To address the high motor power requirements and complex spatial arrangement of traditional new energy commercial vehicles, this paper proposes an electric-flywheel hybrid electric vehicle configuration. The configuration features a dual-power source and dual-motor design, facilitating power synergy among the electric flywheel, control motor and drive motor through a dual planetary gear system. Considering the multiple power sources and working modes of the vehicle, this study offers a comprehensive analysis of its power system. A multi-agent-based energy management strategy is proposed, employing the soft actor-critic algorithm to regulate torque distribution between the drive motor and control motor, and the proximal policy optimization algorithm to optimize mode switching. The agents collaborate through a centralized training and decentralized execution strategy to achieve multi-objective optimization. Results indicate that the proposed method improves velocity tracking and enhances flywheel energy utilization, achieving up to a 14.37% reduction in battery energy consumption compared to conventional EV, Rule-min EMS, PPO-min EMS, and Rule-SAC strategies. Furthermore, the real-vehicle driving cycle further validates the effectiveness of this strategy. The electric-flywheel hybrid powertrain and multi-agent strategy demonstrate significant potential for application and promotional value in vehicle control.</div></div>","PeriodicalId":56019,"journal":{"name":"Sustainable Energy Technologies and Assessments","volume":"82 ","pages":"Article 104538"},"PeriodicalIF":7.0,"publicationDate":"2025-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144912772","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}

{"title":"Microwave vs. hot air: investigation into the drying characteristics and mechanisms of natural rubber","authors":"Dandan Yao ,&nbsp;Bingguo Liu ,&nbsp;Chao Yuwen ,&nbsp;Ronghua Zhang ,&nbsp;Shenghui Guo ,&nbsp;Junjun Yang ,&nbsp;Junwen Zhou","doi":"10.1016/j.seta.2025.104542","DOIUrl":"10.1016/j.seta.2025.104542","url":null,"abstract":"<div><div>Traditional drying relies on convection, radiation, and conduction, resulting in low drying efficiency, especially for natural rubber with elevated humidity, which is extremely likely to lead to severe product aging. In this study, clean and efficient microwaves were utilized to achieve rapid drying of natural rubber, and the microwave resonant cavity perturbation technique and low-field nuclear magnetic resonance (LF-NMR) technique were used to compare it with hot air drying. This approach aimed to clarify water migration pathways during microwave drying and highlight the advancements of this method. The results show that water in natural rubber contains two main forms—free water and bound water (T₂ spectra)—and the water content significantly affects the microwave absorption properties of natural rubber. T₂ relaxation analysis revealed different dehydration mechanisms: traditional hot air drying (480 min) preferentially removed free water (95.5 %), while bound water (5.9 %) was less, while microwave drying (25 min) could remove more evenly (83.4 % free water vs. 10.4 % bound water). Real-time MRI demonstrated microwave-induced reverse moisture migration (internal → external), explaining the fundamental reason for its high drying efficiency. The distinctive microwave drying technique led to a 14.9 % enhancement in the elongation at break of the dried rubber, when compared to traditional drying methods. In this study, the migration characteristics of water during conventional and microwave drying were elucidated through LF-NMR. This investigation not only unveiled the mechanisms underlying microwave drying but also provided a theoretical basis for the selection of the microwave drying process and process control.</div></div>","PeriodicalId":56019,"journal":{"name":"Sustainable Energy Technologies and Assessments","volume":"82 ","pages":"Article 104542"},"PeriodicalIF":7.0,"publicationDate":"2025-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144904600","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}

{"title":"Impact of cooling on battery cycle life based on direct current internal resistance and machine learning model prediction","authors":"Akshay B. Padalkar ,&nbsp;Mangesh B. Chaudhari ,&nbsp;Akshada B. Padalkar ,&nbsp;Adinath M. Funde","doi":"10.1016/j.seta.2025.104543","DOIUrl":"10.1016/j.seta.2025.104543","url":null,"abstract":"<div><div>Lithium-ion batteries are a sustainable energy storage technology and are workhorses for electric vehicles (EVs) as well as stationary applications. However, the cycle life analysis of these batteries is critical to ensure their reliability and safety of operation, which has remained a significant challenge. The complex behavior of battery affects the performance parameters that are responsible for the degradation mechanisms. The focus on parameters such as discharge capacity, internal resistance, current and temperature rise correlates best in predicting the cycle life of batteries. The study proposes a new approach to investigate the cycle life by using Direct Current Internal Resistance (DCIR) and temperature rise behavior of lithium iron phosphate (LFP) and lithium nickel manganese cobalt oxides (NMC) battery cell chemistries for multiple discharge rates. The study also analyses the impact of cooling on battery cells to improve the cycle life of batteries. The experimental method is employed for battery cycling for 400 cycles to analyze the battery cell DCIR trend under test conditions, and this data is used for cycle life prediction. The experimental results reveal that the internal resistance of battery cells is affected by two parameters namely discharge rates and operating temperature conditions. The linear regression and machine learning models are used to predict the future cycle life of battery cells. The result reveals that cooling of cells during operation reduces the drift of internal resistance leading to increased cycle life of battery cells. The linear regression model predicts that applying cooling to LFP and NMC battery cells increases cycle life from 1382 cycles to 2570 cycles and from 1280 cycles to 2420 cycles, respectively. Additionally, the machine learning model predicts that applying cooling to both LFP and NMC battery cells increases cycle life from 1220 cycles to 2726 cycles and from 1270 cycles to 2708 cycles compared to the condition without cooling. The experimental results of 400 cycles show that the R² is more than 0.93 for all cases. The cycle life analysis clearly predicts that maintaining battery temperature within 20 to 50 ℃ with the help of cooling improves cycle life of batteries by 90% to 120%.</div></div>","PeriodicalId":56019,"journal":{"name":"Sustainable Energy Technologies and Assessments","volume":"82 ","pages":"Article 104543"},"PeriodicalIF":7.0,"publicationDate":"2025-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144904601","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}

{"title":"A redesign method for rural electrification projects, case study in Yutaho, Colombia","authors":"A. Vides-Prado ,&nbsp;J. Mora-Flórez ,&nbsp;B. Domenech ,&nbsp;M. Juanpera ,&nbsp;M.J. Parajeles ,&nbsp;E. Bastante ,&nbsp;L. Ferrer-Martí","doi":"10.1016/j.seta.2025.104532","DOIUrl":"10.1016/j.seta.2025.104532","url":null,"abstract":"<div><div>Despite the need for off-grid electrification and the existing knowledge of the technologies involved, many electrification projects fail by not keeping up as the community’s needs increase over time. Rural electrification projects must be redesigned to avoid this, and more power generation and distribution equipment should be added. When doing so, some redesign constraints are needed in the reused equipment (movements of equipment to new points of the community or changes to the distribution schemes). This work proposes a methodology for redesigning rural electrification projects, which analyses new electrification alternatives and proposes a new power installation. The methodology is organised into four stages: (1) demand assessment, (2) redesign alternatives, (3) evaluation of supply quality, and (4) redesign selection. The methodology is applied to the Yutaho community (northeast Colombia).</div></div>","PeriodicalId":56019,"journal":{"name":"Sustainable Energy Technologies and Assessments","volume":"82 ","pages":"Article 104532"},"PeriodicalIF":7.0,"publicationDate":"2025-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144904599","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}

{"title":"Economic optimization of hybrid renewable system for near-zero emission electric vehicle charging stations in the capital cities of the world","authors":"Mohammad Amin Vaziri Rad ,&nbsp;Arman Esmaeilpour ,&nbsp;Fatemeh Rouzbahani ,&nbsp;Ashkan Toopshekan","doi":"10.1016/j.seta.2025.104546","DOIUrl":"10.1016/j.seta.2025.104546","url":null,"abstract":"<div><div>The growing adoption of electric vehicles (EVs) and the increasing demand for EV charging stations present significant challenges in ensuring sufficient energy capacity while promoting a clean and sustainable power supply. This study optimizes hybrid renewable energy systems and offers a global comparative analysis of their economic performance in supplying reliable power to Level 2 EV charging stations with a near-zero emissions approach. To this end, the capital cities of 85 countries worldwide were selected, each with different annual solar and wind resource profiles, national electricity tariffs, inflation rates, and grid emission factors, to minimize energy-related costs for both daytime and nighttime EV charging scenarios. According to the results, the best daytime LCOEs were observed in capital cities located in the Middle East, North Africa, and South and Southeast Asia, with values of 0.09–0.15 $/kWh. In contrast, in regions such as Central Europe, Southern Europe, East Asia, Oceania, and North America, where the optimized LCOEs range from 0.16 to 0.39 $/kWh, lower levels of incentives are required to make renewable energy more attractive for use in green chargers compared to grid tariffs. Additionally, the CO₂ emission profit potential of 1.4–16.2 tons/year was determined for stations with at least one EV charging session per day.</div></div>","PeriodicalId":56019,"journal":{"name":"Sustainable Energy Technologies and Assessments","volume":"82 ","pages":"Article 104546"},"PeriodicalIF":7.0,"publicationDate":"2025-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144894953","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}

{"title":"Assessment of the operating economics of a novel compressed CO2 energy storage system based on adsorption effect: Exergoeconomic analysis","authors":"Tianhang Zhang ,&nbsp;Jianmin Gao ,&nbsp;Shuqi Zhang ,&nbsp;Ximei Li ,&nbsp;Qiaoqun Sun ,&nbsp;Dongdong Feng ,&nbsp;Qian Du ,&nbsp;Min Xie","doi":"10.1016/j.seta.2025.104517","DOIUrl":"10.1016/j.seta.2025.104517","url":null,"abstract":"<div><div>Compressed CO₂ energy storage technology offers high energy storage density and does not rely on specific geological formations. Unlike conventional compressed air systems that require large underground caverns, CO₂-based systems can be implemented above ground, making them more flexible and widely deployable. As a result, this technology has broad development prospects. This paper proposes a compressed CO₂ energy storage system based on adsorption effect (AE-CCES). Unlike conventional CCES schemes, the AE-CCES integrates a two-stage heater/cooler configuration to reduce irreversibility and enhance thermal control within the adsorption tower. The simulation results demonstrate that the system achieves excellent thermodynamic performance with a low unit exergy cost of 21.05 $/GJ, which demonstrates strong engineering feasibility under realistic material and cost constraints. Sensitivity analysis shows that raising the adsorption temperature increases compressor power but lowers the unit exergy cost, improving economic performance. Increasing the desorption temperature from 453.15 K to 483.15 K results in a 3.6 % rise in exergy efficiency but a 1.5 % drop in round-trip efficiency, due to reduced CO₂ adsorption capacity and improved energy quality. The increase in storage pressure negatively affects the cycle efficiency and operating economy but helps to raise the energy storage density. The rise in the temperature difference between the pinch points will enlarge the available energy loss in the heat transfer process, negatively affecting the thermodynamic performance of the system as well as the operating economy. Changes in isentropic efficiency have compound nonlinear effects on the system. These findings provide a scalable and cost-effective pathway for future adsorption-integrated energy storage system development.</div></div>","PeriodicalId":56019,"journal":{"name":"Sustainable Energy Technologies and Assessments","volume":"82 ","pages":"Article 104517"},"PeriodicalIF":7.0,"publicationDate":"2025-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144892993","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}

{"title":"Empowering sustainable energy technologies for electricity production in Kosovo using scenario approach analysis","authors":"Drilon Meha ,&nbsp;Naser Sahiti ,&nbsp;Bedri Dragusha ,&nbsp;Rexhep Selimaj ,&nbsp;Jagruti Thakur","doi":"10.1016/j.seta.2025.104504","DOIUrl":"10.1016/j.seta.2025.104504","url":null,"abstract":"<div><div>Sustainable decarbonizing a coal-dependent energy system faces significant challenges, particularly in countries where the entire energy infrastructure, social and economic activities are heavily reliant on traditional fossil-based technologies. These challenges are related to the fact that Kosovo and other similar countries have built their entire energy systems, social activities and economies around coal, making the transition to cleaner and sustainable alternatives a complex and multifaceted endeavor. This study investigates the overall Kosovo energy system balance while analyzing different sustainable scenarios that explore the design of the mix of technologies in electricity production while paving the way for smart energy system approach utilization. The critical excess electricity production method is used as a tool to identify what’s happening with the energy system infrastructure and how Kosovo is uniquely dealing with that. Strategies for recovering old coal units with refurbishment and upgrading units, while integrating Wind and PV and introducing new technologies such as gas power plants without compromising natural resources (bioenergy) are investigated and finally discussed from a border preceptive to link with other spatial and international studies. The EnergyPLAN model, with technical simulation strategy, is used for modelling and scenario analysis of different sustainable transformative changes in the electricity technology production mix in Kosovo considering hourly balances of energy flows. The findings show that recovery of coal-based technologies and introduction of gas power plants with other studies on bioenergy, and increasing variable renewable can additionally contribute to creating a sustainable mix of energy production technologies while significantly contributing to climate change adaptability for heavily depended coal countries.</div></div>","PeriodicalId":56019,"journal":{"name":"Sustainable Energy Technologies and Assessments","volume":"82 ","pages":"Article 104504"},"PeriodicalIF":7.0,"publicationDate":"2025-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144892994","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}