Next Energy最新文献

{"title":"A review of the synthetic transport fuels as a solution for carbon neutrality","authors":"Rodica Niculescu ,&nbsp;Adrian Clenci ,&nbsp;Alireza Shirneshan ,&nbsp;Mihaela Năstase","doi":"10.1016/j.nxener.2025.100355","DOIUrl":"10.1016/j.nxener.2025.100355","url":null,"abstract":"<div><div>In the current context in which greenhouse gas (GHG) emissions, global warming, and poor energy security are paramount, finding new sources of sustainable, renewable energy has become a top priority. The transportation sector is accountable for a significant percentage of GHG emissions. Therefore, the decarbonization of transport is a priority.</div><div>Today, the significance of energy in economics and politics is undeniable. As a result, the production of alternative fuels is not merely an option but a necessity. The objective of this review is to outline the findings of recent studies regarding potential methods for attaining carbon neutrality in the transportation sector through the utilization of synthetic fuels. This review presents the potential of combining fossil fuel sources with carbon capture and storage technologies to reduce the greenhouse effect. The main CO₂ capture technologies, such as post-combustion, pre-combustion, oxyfuel combustion, and direct air capture (DAC), were also explained. The review also discusses ways of using the captured CO₂ to obtain value-added products, including fuels, through various approaches like electrochemical, thermal, biochemical, chemo-enzymatic, and photocatalytic methods. However, the review highlights that catalysts are an area where research must continue intensively in the future. Furthermore, the review evaluates the combustion characteristics, performance, and emissions of engines fueled with synthetic fuels, such as Fischer-Tropsch diesel and oxymethylene dimethyl ethers (OMEx), in comparison to fossil diesel fuel. The challenges related to the production cost estimation of these synthetic fuels are also presented, as they involve economic uncertainties and a large number of parameters. The review also discusses the life cycle analysis of synthetic fuels produced from CO₂, considering the sources and processes for obtaining hydrogen and CO₂, their transport and storage, the production processes of synthetic fuels, and their transport and use. In addition, the review addresses the barriers and opportunities for the commercial deployment of synthetic transport fuels and the policy implications, as well as presenting several companies around the world that have begun to develop ambitious synthetic fuel manufacturing projects as an alternative to fossil fuels. Finally, the review presents the challenges and perspectives of synthetic transport fuels as a solution for carbon neutrality.</div></div>","PeriodicalId":100957,"journal":{"name":"Next Energy","volume":"8 ","pages":"Article 100355"},"PeriodicalIF":0.0,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144571140","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Computational fluid dynamics-based optimization of inclined slotted solar drying chamber for enhanced Citrus hystrix drying: Experimental validation and numerical analysis","authors":"M.A.A. Azmi ,&nbsp;A.A. Razak ,&nbsp;M.A.S.M. Tarminzi ,&nbsp;A.F. Sharol ,&nbsp;A.S.M. Yudin ,&nbsp;Z.A.A. Majid","doi":"10.1016/j.nxener.2025.100365","DOIUrl":"10.1016/j.nxener.2025.100365","url":null,"abstract":"<div><div>A uniform temperature distribution optimizes the energy efficiency and operational costs of solar drying processes. However, existing solar drying chamber designs often suffer from non-uniform heat distribution and extended drying times, limiting their industrial applicability. This study introduces novel inclined slotted solar drying chamber (ISSDC) configurations and investigates their performance through computational fluid dynamics (CFD) simulations and experimental validation. Six configurations were analyzed: the ISSDC with inclination angles of 90°, 67.5°, 45°, and 22.5°, a perforated-type solar drying chamber (PTSDC), and a cylindrical-type solar drying chamber (CTSDC). The study employed a hybrid solar drying system incorporating cross-matrix absorbers and auxiliary heating, operating at an air velocity of 2.0 m/s. The performance was evaluated using temperature distribution mapping, pressure drop analysis, and drying kinetics of <em>Citrus hystrix</em> leaves. The ISSDC 67.5° configuration demonstrated superior performance, achieving a 30% reduction in drying time (280 min versus 385–390 min for conventional designs) and the lowest specific energy consumption (SEC) of 3.17 kWh.kg⁻¹. This configuration maintained optimal temperature uniformity (52.59<!--> <!-->°C average) and exhibited reduced pressure variations (90–290 Pa) compared to conventional designs (300–400 Pa). CFD simulations revealed that the inclined slots generated beneficial swirling flow patterns, enhancing heat transfer and eliminating dead zones within the chamber. The novel ISSDC 67.5° design significantly improved the drying efficiency through optimized airflow patterns and enhanced temperature uniformity.</div></div>","PeriodicalId":100957,"journal":{"name":"Next Energy","volume":"8 ","pages":"Article 100365"},"PeriodicalIF":0.0,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144704563","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Sustainable approaches to NOx emissions: Capture and utilization technologies","authors":"Ikram Moulay ,&nbsp;Kyumin Jang","doi":"10.1016/j.nxener.2025.100356","DOIUrl":"10.1016/j.nxener.2025.100356","url":null,"abstract":"<div><div>The emission of nitrogen oxides (NO_x) stemming from diverse industrial processes and transportation, pose significant challenges to air quality, climate change, and human health. This comprehensive review offers a thorough exploration of NO_x capture and utilization technologies, their mechanisms, current scale-up efforts, and future prospects. Key findings provide insights on the underlying mechanisms involved with a focus on selectivity, efficiency, and regeneration. Additionally, NO_x utilization strategies, including NO_x to nitrate conversion and NO_x to ammonia synthesis, are assessed for their environmental and economic benefits.</div><div>The paper showcases ongoing industrial-scale implementations across diverse sectors, such as power generation, chemical manufacturing, and wastewater treatment, underscoring the practical feasibility and potential for economic benefits. Environmental and economic impact assessments are scrutinized to evaluate the full benefits of these technologies. Challenges and limitations in scaling up NO_x capture and utilization, including engineering integration, space constraints, and safety considerations, are addressed. The critical role of multidisciplinary collaboration between academia, industry, and policy-makers is emphasized. In conclusion, this paper offers a roadmap for leveraging NO_x capture and utilization technologies as transformative solutions to NO_x emissions challenges. As we navigate this journey toward a more sustainable future, the nexus of scientific inquiry, innovation, and collaborative action holds the promise of a world where NO_x emissions are not merely controlled but are also a valuable resource driving progress and environmental stewardship.</div></div>","PeriodicalId":100957,"journal":{"name":"Next Energy","volume":"8 ","pages":"Article 100356"},"PeriodicalIF":0.0,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144557497","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Thermodynamic evaluation of cryogenic hydrogen storage performance for heavy-duty trucks","authors":"Julio Moreno-Blanco ,&nbsp;David E. Jaramillo ,&nbsp;Salvador M. Aceves","doi":"10.1016/j.nxener.2025.100362","DOIUrl":"10.1016/j.nxener.2025.100362","url":null,"abstract":"<div><div>Thermodynamic evaluation of 3 configurations of cryogenic hydrogen storage (liquid hydrogen LH₂, subcooled liquid hydrogen sLH₂, and cryo-compressed hydrogen CcH₂) for vessel dimensions (2 frame-mounted vessels, each with 560 L capacity) and utilization patterns (Monday-Friday driving from full capacity to minimum usable density, and no driving during weekends) representative of heavy-duty trucks reveals that LH₂ and sLH₂ vessels have lower empty system weight than CcH₂ vessels (169 kg and 210 kg vs. 422 kg for CcH₂ vessels), and lower electricity consumption for LH₂ pumping (0.05 kWh/kg for sLH₂ vs. 0.2–0.3 kWh/kg for CcH₂ vessels). On the other hand, CcH₂ vessels have advantages on several key performance metrics that makes them a compelling alternative for hydrogen (H₂) storage onboard trucks: storage density (73 g/L vs. 60 for sLH₂ and 55.6 for LH₂), usable storage density (68 g/L vs. 52.5 for sLH₂ and 45.9 for LH₂), system usable storage density (46.5 g/L vs. 43.2 for sLH₂ and 38.7 for LH₂), and driving range (858 km vs 662 for sLH₂ and 579 for LH₂). CcH₂ vessels accomplish these advantages while maintaining zero vent losses, while 5.1% of the total LH₂ fed into the sLH₂ vessel and 9.8% of the total LH₂ fed into the LH₂ vessel are vented. Flexibility for feeding engines or fuel cells at elevated pressure is also a valuable feature of CcH₂ vessels. Lastly, LH₂ pump-based CcH₂ fueling stations can be easily adapted to compressed H₂ refueling, as the same key equipment is leveraged. These unique advantages suggest that CcH₂ vessels are a promising technology to accomplish the important and challenging task of heavy-duty truck decarbonization.</div></div>","PeriodicalId":100957,"journal":{"name":"Next Energy","volume":"8 ","pages":"Article 100362"},"PeriodicalIF":0.0,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144704565","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Seasonal and diurnal electricity costing: A case study of Sri Lanka","authors":"D. Punsara Colambage ,&nbsp;W.D. Anura S. Wijayapala ,&nbsp;Tilak Siyambalapitiya","doi":"10.1016/j.nxener.2025.100375","DOIUrl":"10.1016/j.nxener.2025.100375","url":null,"abstract":"<div><div>Traditional approaches of electricity generation cost analysis have overlooked the crucial seasonal cum diurnal variations, particularly in relation to hydropower generation. The inherently stochastic nature of climate and weather conditions causes significant fluctuations in electricity generation costs, making it essential to assess the instantaneous variation of water value of existing reservoirs instead of relying on static or constant values. This research paper presents a groundbreaking economic dispatch framework, and it proposes 3 innovative techniques to evaluate water value. These methods are then applied to calculate electricity generation costs, providing a comparative analysis of each approach. Furthermore, the study conducts a quantitative assessment of water value for electricity generation versus agricultural use, while extending the water value analysis to individual reservoirs instead of a uniform national value. The findings offer critical insights for policy formulation, with a focus on the Sri Lankan power system as a case study.</div></div>","PeriodicalId":100957,"journal":{"name":"Next Energy","volume":"8 ","pages":"Article 100375"},"PeriodicalIF":0.0,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144704567","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Cold storage systems for electricity management: Performance analysis in office and power plant applications","authors":"Ramin Mehdipour ,&nbsp;Behnam Feizollah Beigi ,&nbsp;Romina Fathiraboki ,&nbsp;Hasan Asgari ,&nbsp;Zahra Baniamerian","doi":"10.1016/j.nxener.2025.100363","DOIUrl":"10.1016/j.nxener.2025.100363","url":null,"abstract":"<div><div>In hot seasons, residential areas consume significant amounts of electricity for refrigeration and air conditioning, leading to peak power consumption. This simultaneous increase in cooling load, combined with reduced performance of gas turbines, places considerable stress on the power grid, particularly during specific periods each year. Cold storage systems offer an effective solution by shifting electricity consumption from peak daytime hours to off-peak nighttime periods. This study evaluates and compares the economic and thermal performance of cold storage systems implemented in both power plants and office buildings for peak demand management. Tailored cold storage systems were designed for each application, with a focus on ensuring reliable performance during peak cooling demand based on load analysis. The study utilized real-world case studies, including modeling for an office building in Arak, Iran, and a nearby power plant, to understand the impact of different climatic conditions on system performance. The results indicate that, during peak hours, the turbine’s net power output improved by 15.98% and 17.97% with partial and full storage methods, respectively, compared to scenarios without cooling. Additionally, the economic analysis revealed substantial cost savings, with partial and full storage systems resulting in reductions of 97.36% and 95.54%, respectively, in power plant units compared to similar office buildings with equivalent power consumption. The analysis also highlights that full storage systems in both office and power plant contexts deliver better peak shaving performance but at a higher cost due to the larger size of tanks and equipment required for operation. These findings underscore the potential of cold storage systems as an effective strategy for enhancing electricity management and reducing operational costs.</div></div>","PeriodicalId":100957,"journal":{"name":"Next Energy","volume":"8 ","pages":"Article 100363"},"PeriodicalIF":0.0,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144632756","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Sheet-like MoO₃ nanostructures with improved charge storage: Relationships among structural, optical, and electrochemical properties","authors":"A.P. Nagendra Babu ,&nbsp;N. Pradeep ,&nbsp;C.G. Renuka","doi":"10.1016/j.nxener.2025.100352","DOIUrl":"10.1016/j.nxener.2025.100352","url":null,"abstract":"<div><div>The molybdenum trioxide (MoO₃) nanosheets were synthesized via thermal decomposition and thoroughly characterized for their structural, morphological, optical, and electrochemical properties. X-ray diffraction (XRD) confirmed orthorhombic phase purity with crystallite sizes of 69–97 nm. Raman and FTIR spectroscopy revealed key Mo–O and Mo<img>O vibrational modes, while X-ray photoelectron spectroscopy (XPS) confirmed oxidation states. Field emission scanning electron microscope (FESEM) and transmission electron microscopy (TEM) showed sheet-like morphology, and energy-dispersive X-ray spectroscopy (EDX) validated elemental composition. UV–vis spectroscopy indicated direct and indirect band gaps of 2.800–2.977 eV and 2.566–2.940 eV, respectively. Electrochemical performance, assessed via cyclic voltammetry (CV), galvanostatic charging-discharging (GCD), and electrochemical impedance spectrometry (EIS), demonstrated excellent capacitance (217.30 F/g), energy density (21.47 Wh/kg), and power density (2118.65 W/kg). When integrated into coin cells, MoO₃ nanosheets exhibited a specific capacitance of 48.39 F/g, with an energy density of 31.93 Wh/kg and power density of 2903.26 W/kg. These findings underscore their strong potential in advanced energy storage applications.</div></div>","PeriodicalId":100957,"journal":{"name":"Next Energy","volume":"8 ","pages":"Article 100352"},"PeriodicalIF":0.0,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144535633","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Investigating pyrolysis kinetics of lignocellulosic agro-waste (coconut shell) and plastics (PP & HDPE) through distributed activation energy model","authors":"Harsh V. Rambhia,&nbsp;Vikram S. Chatake,&nbsp;Aniruddha B. Pandit","doi":"10.1016/j.nxener.2025.100354","DOIUrl":"10.1016/j.nxener.2025.100354","url":null,"abstract":"<div><div>This study addresses the critical need to manage plastic waste and explore alternative energy sources due to their intertwined impacts on environmental degradation and climate change. By investigating the pyrolysis of lignocellulosic biomass (coconut shells) and thermoplastic polymers (polypropylene [PP] and high-density polyethylene [HDPE]) using Thermo-Gravimetric Analysis (TGA) and Distributed Activation Energy Model (DAEM). The research aims to optimize the pyrolysis condition for producing valuable fuels and chemicals. The study evaluates activation energy, possible reaction mechanisms, and process efficiency, offering insights into sustainable energy production from waste materials. The apparent average activation energy obtained for coconut shell pyrolysis ranges between 187.84 and 199.31 kJ/mol, while for plastic it ranges between 169.15 and 360.04 kJ/mol.</div></div>","PeriodicalId":100957,"journal":{"name":"Next Energy","volume":"8 ","pages":"Article 100354"},"PeriodicalIF":0.0,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144571688","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Facile preparation of CoNiS/MXene/polypyrrole electrocatalyst with mischcrystal-amorphous interfaces for hydrogen evolution reaction","authors":"Hongxiang Li,&nbsp;Ying Su,&nbsp;Tong Guo,&nbsp;Han Zheng,&nbsp;Bo Sun,&nbsp;Chunhua Yu,&nbsp;Jun Cao,&nbsp;Qiaoling Li,&nbsp;Weimeng Si","doi":"10.1016/j.nxener.2025.100338","DOIUrl":"10.1016/j.nxener.2025.100338","url":null,"abstract":"<div><div>Electrocatalytic hydrogen evolution reaction (HER) offers a sustainable pathway for clean hydrogen production, while the developing of non-Pt catalysts with high activity and durability remains challenging. This work presents a CoNiS/MXene/polypyrrole (PPy) composite synthesized via a novel 2-step electrodeposition method, enabling precise control over morphology and interfacial properties. The catalyst achieves a low overpotential of 147 mV at 10 mA cm⁻² in alkaline media, rivaling state-of-the-art non-Pt HER catalysts. Remarkably, it retains 99% activity after 2000 CV cycles and 12 h of continuous operation, demonstrating exceptional stability. Where, the mischcrystal-amorphous interfaces of CoNiS provides abundant active sites for HER. And the 3D-continuous structure of MXene/PPy offers a large specific surface area and efficient electron-transfer pathways, promoting high-speed charge transport and mass diffusion. The interfacial coupling between CoNiS and the MXene/PPy matrix was considered facilitating efficient charge transfer across their heterojunction interfaces. This interaction effectively prevents the agglomeration and structural degradation of CoNiS nanosheets during the electrocatalytic process, thereby significantly enhancing the stability of the catalyst. The synergistic effects of CoNiS, PPy, and MXene result in an optimized electronic structure and enhanced catalytic kinetics.</div></div>","PeriodicalId":100957,"journal":{"name":"Next Energy","volume":"8 ","pages":"Article 100338"},"PeriodicalIF":0.0,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144548819","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A trade-off between line hardening and dynamic line rating by a new convex optimization model for resilient micro-grid-oriented expansion planning of reconfigurable smart distribution networks incorporated with renewable energy sources","authors":"Saeed Behzadi,&nbsp;Amir Bagheri","doi":"10.1016/j.nxener.2025.100351","DOIUrl":"10.1016/j.nxener.2025.100351","url":null,"abstract":"<div><div>Because of budget and right-of-way limitations, smart-grid technologies (SGTs) are widely incorporated in today’s distribution systems in order to satisfy the load demand growth and meet the network’s operational and reinforcement planning requirements. The main purpose of this paper is to propose a resilient expansion planning model based on a cost-effective comparison between dynamic line rating (DLR) and reinforcement of line conductors through low probability and high impact (LPHI) outages. Besides lines hardening and installing DLR-measuring devices, the planning options include optimal formation of radial reconfigurable micro-grids (MGs). The presented approach considers the total cost (including construction costs, operational costs, and CO₂ emission costs) and load shedding as the objective functions within a multi-objective optimization, and takes into account all the operational constraints and AC power flow equations. The developed model is constituted as a convex mixed-integer quadratic-constrained programming (MIQCP) which is implemented in GAMS and applied to the IEEE 24-bus system under different experiments. Furthermore, the Pareto optimization scenarios have been considered and the optimal solution is selected by the fuzzy-satisfying method. The simulation results demonstrate the efficacy of the conducted model. According to the optimal Pareto algorithm solution, the resiliency index is guaranteed to be more than 92% in the face of LPHI disasters. For practitioners, this work provides a decision-making toolkit to weigh DLR against conventional reinforcement, while policymakers can leverage the emissions-reliability trade-offs to design incentive programs. The proposed MG reconfiguration also offers a blueprint for outage response in disaster-prone regions.</div></div>","PeriodicalId":100957,"journal":{"name":"Next Energy","volume":"8 ","pages":"Article 100351"},"PeriodicalIF":0.0,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144549028","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}