Renewable Energy最新文献_第10页

Enhancing hydrogen recovery and carbon sequestration efficiency in natural hydrogen reservoirs through CO2 injection: An experimental and simulation study

IF 9 1区工程技术

Renewable Energy Pub Date : 2025-03-13 DOI: 10.1016/j.renene.2025.122884

Teng Lu , Xiaorong Shi , Ke Zhao , Peiliang Liu , Jian Hou

{"title":"Enhancing hydrogen recovery and carbon sequestration efficiency in natural hydrogen reservoirs through CO2 injection: An experimental and simulation study","authors":"Teng Lu , Xiaorong Shi , Ke Zhao , Peiliang Liu , Jian Hou","doi":"10.1016/j.renene.2025.122884","DOIUrl":"10.1016/j.renene.2025.122884","url":null,"abstract":"<div><div>Natural hydrogen reservoirs formed through serpentinization offer significant potential as clean energy resources. However, their efficient exploitation is challenged by water invasion during pressure depletion, which can severely reduce hydrogen production efficiency. This study proposes a strategy using carbon dioxide (CO<sub>2</sub>) injection to enhance hydrogen recovery and mitigate water encroachment. A comprehensive approach combining experimental studies, molecular dynamics simulations, and reservoir modeling was employed to assess the impact of CO<sub>2</sub> injection. Interfacial tension measurements showed that CO<sub>2</sub>/H<sub>2</sub> gas mixtures significantly reduce interfacial tension with water compared to pure hydrogen, helping to minimize water invasion. Core flooding experiments demonstrated that CO<sub>2</sub> injection stabilizes hydrogen production by suppressing water output. Molecular simulations revealed that CO<sub>2</sub> preferentially adsorbs onto dolomite surfaces, forming a CO<sub>2</sub>-rich layer that acts as a barrier to water encroachment. The findings suggest that an optimal CO<sub>2</sub> injection rate effectively enhances hydrogen recovery while also providing CO<sub>2</sub> sequestration benefits, offering dual environmental advantages. This research provides new methods for the sustainable development of natural hydrogen reservoirs and contributes to reducing carbon emissions, supporting the transition to a low-carbon energy future.</div></div>","PeriodicalId":419,"journal":{"name":"Renewable Energy","volume":"245 ","pages":"Article 122884"},"PeriodicalIF":9.0,"publicationDate":"2025-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143620773","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Green hydrogen impact on economic growth: A cross-sectional analysis of 29 European countries

IF 9 1区工程技术

Renewable Energy Pub Date : 2025-03-13 DOI: 10.1016/j.renene.2025.122898

Lamiae Sarsar

引用次数: 0

A preliminary investigation into the particle emission characteristics of gasoline compression ignition (GCI) fueling with n-butanol

IF 9 1区工程技术

Renewable Energy Pub Date : 2025-03-13 DOI: 10.1016/j.renene.2025.122894

Yifeng Wang , Yuan Zhuang , Zhongwen Zhu , Yanzhou Qin

{"title":"A preliminary investigation into the particle emission characteristics of gasoline compression ignition (GCI) fueling with n-butanol","authors":"Yifeng Wang , Yuan Zhuang , Zhongwen Zhu , Yanzhou Qin","doi":"10.1016/j.renene.2025.122894","DOIUrl":"10.1016/j.renene.2025.122894","url":null,"abstract":"<div><div>In this work, engine experiments were performed to investigate the effect of EGR, fuel injection timing, intake pressure as well as fuel injection strategy on engine performance and particle emissions when the tested engine was operated in gasoline compression ignition (GCI) mode under low-load condition. The results showed the usage of low rate of EGR was in favor of improving auto-ignition, producing advanced combustion phasing, the particle size fell within the range of 0∼40 nm, and most of the emitted particles were nucleation-mode. As EGR rate increased, wider range of particle size distribution was found, but ignition delay was overly long, leading to retarded combustion phasing, and the concentration and size of the emitted particles decreased rapidly. As the fuel injection timing was advanced, the particle size distribution shifted towards larger particles and higher concentration firstly, then shifted towards smaller particles and lower concentration. When the position of CA50 was fixed, comparing pairs of injection timings, close to and far from TDC (top dead center), it was found that lower particle concentration was obtained when employing those injection timings far from TDC. High enough equivalence ratio was achievable when lower intake pressure was used under low load condition, but long ignition delay was produced and lower particle concentration was found with narrow size distribution. Through elevating intake pressure, particle size distribution shifted towards larger particles. In addition, comparing with single-shot injection strategy, two double-injection strategies were capable of lowering particle concentration considerably, which was particularly evident for the main + post strategy.</div></div>","PeriodicalId":419,"journal":{"name":"Renewable Energy","volume":"246 ","pages":"Article 122894"},"PeriodicalIF":9.0,"publicationDate":"2025-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143642657","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Experimental study of liquid optical filtration PV/T modules with different working fluids

IF 9 1区工程技术

Renewable Energy Pub Date : 2025-03-13 DOI: 10.1016/j.renene.2025.122893

Yuanlong Cui , Shuangqing Tian , Jie Zhu

{"title":"Experimental study of liquid optical filtration PV/T modules with different working fluids","authors":"Yuanlong Cui , Shuangqing Tian , Jie Zhu","doi":"10.1016/j.renene.2025.122893","DOIUrl":"10.1016/j.renene.2025.122893","url":null,"abstract":"<div><div>The working fluid influences on energy performance of a solar photovoltaic/thermal (PV/T) module are investigated experimentally, the MXene, ethylene glycol (EG) and distilled water (DIW) are considered in this study. The effects of a liquid optical filtration layer on the working fluid temperature and module transmittance property are clarified, and the pressure drops and pumping power of the PV/T module with different working fluids are determined. A brief uncertainty analysis is carried out, which exhibits that the measurements are sufficiently accurate to reflect the experimental data variations. Experimental results demonstrate that the total energy conversion efficiency of the module using the MXene is 31.1 % and 12.7 % higher than those using the EG and DIW respectively. It is also found that the transmittance performance of the MXene optical filtration layer is 4.6 % and 2.2 % higher than those of the EG and DIW respectively. Additionally, it is concluded that the maximum pumping power of the module using the MXene is 9.8 % and 18.22 % higher than those using the EG and DIW respectively, which indicates that more pumping power is needed for the MXene based PV/T module.</div></div>","PeriodicalId":419,"journal":{"name":"Renewable Energy","volume":"246 ","pages":"Article 122893"},"PeriodicalIF":9.0,"publicationDate":"2025-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143644459","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Environmentally sustainable methodology for the extraction of ethyene vinyl acetate (EVA) residue from EoL PV panel dismantled by hot knife

IF 9 1区工程技术

Renewable Energy Pub Date : 2025-03-12 DOI: 10.1016/j.renene.2025.122872

Refika Budakoğlu , Deniz Avcı Akın , Olcay İrem İrey , Ersin Gökçen , Güray Kasapoğlu , Duygu Yılmaz

{"title":"Environmentally sustainable methodology for the extraction of ethyene vinyl acetate (EVA) residue from EoL PV panel dismantled by hot knife","authors":"Refika Budakoğlu , Deniz Avcı Akın , Olcay İrem İrey , Ersin Gökçen , Güray Kasapoğlu , Duygu Yılmaz","doi":"10.1016/j.renene.2025.122872","DOIUrl":"10.1016/j.renene.2025.122872","url":null,"abstract":"<div><div>EVA is the encapsulation material holding the c-Si PV module components together. In order to upscale the cover glass, it is necessary to remove the EVA film effectively. With hot knife technique, glass is separated without breaking, but a layer of EVA remains on the surface. Chemical extraction techniques to separate EVA use common toxic organic chemicals such as Toluene, with long separation process time. Thus, inefficient separation of EVA from the panel with residues remaining on the surface, which will oxidize and change the glass furnace atmosphere, have highlighted the need to develop new methods. We demonstrated an efficient and environmentally friendly extraction method for the extraction of the thick layer of EVA-adhered intact glass after dismantled from module by the hot knife applied manually. The effectiveness of this method was investigated by comparing it with a common solvent Toluene extraction through advanced characterizing techniques. Also, the results showed that the EVA extraction time has reached extremely short time of 4 h without using any thermal process that would emit toxic vapors. We can conclude that with the developed method, cleaned glass can be safely re-used as feedstock for solar glass production, which requires strict chemical specifications.</div></div>","PeriodicalId":419,"journal":{"name":"Renewable Energy","volume":"246 ","pages":"Article 122872"},"PeriodicalIF":9.0,"publicationDate":"2025-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143642654","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Exergy-energy, and sustainability index assessment of oxy-acetylated enriched-TiO2-Scenedesmus obliquus biodiesel fuel blends in a diesel engine

IF 9 1区工程技术

Renewable Energy Pub Date : 2025-03-12 DOI: 10.1016/j.renene.2025.122870

Olusegun Stanley Tomomewo, Babalola Aisosa Oni

{"title":"Exergy-energy, and sustainability index assessment of oxy-acetylated enriched-TiO2-Scenedesmus obliquus biodiesel fuel blends in a diesel engine","authors":"Olusegun Stanley Tomomewo, Babalola Aisosa Oni","doi":"10.1016/j.renene.2025.122870","DOIUrl":"10.1016/j.renene.2025.122870","url":null,"abstract":"<div><div>Biodiesel, prepared by transesterification of <em>Scenedesmus-obliquus</em> as a feedstock blended with acetylene-air at different flowrates is used to fuel a diesel engine. An Exergy-energy analysis compares baseline diesel at various engine design variables. The fuel samples were tested for sustainability, combustion efficiency, emissions, useful work energy, and engine performance, through exhaust gases in a Rainbow-186 Diesel engine at different loads. Data analysis provides optimal operating conditions for the efficient combustion of the fuel blends. Optimal performance was obtained at a compression ratio of 17.5 and injection pressure of 210 bar, with energy efficiency observed as 37.00 % for <em>Scenedesmus-obliquus</em>-biodiesel-TiO<sub>2</sub> +200g/h-acetylene-air which is the most suitable fuel blends relative to the diesel fuel at 30.9 %. The biodiesel-acetylene-air addition reduces the NOx, CO<sub>2</sub> and UHC emissions with an average of 17.23 %, 9.04 % and 12.77 % when compared with diesel fuel. While such reductions may demonstrate technological advancements, their real-world impact depends on operating conditions, which can vary significantly in practical applications. Under full load, the exergy efficiencies and sustainability index values of the blends are 6.83, and 1.57 % higher, compared to diesel at full load. The highest sustainability index for the fuel blends is 1.6 at 100 % engine load in <em>Scenedesmus-obliquus</em>-biodiesel-TiO<sub>2</sub> +200 g/h acetylene-air fuel.</div></div>","PeriodicalId":419,"journal":{"name":"Renewable Energy","volume":"246 ","pages":"Article 122870"},"PeriodicalIF":9.0,"publicationDate":"2025-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143636315","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Advances in the location and repairing of ribbon interruptions in photovoltaic modules

IF 9 1区工程技术

Renewable Energy Pub Date : 2025-03-12 DOI: 10.1016/j.renene.2025.122828

Félix G. Rosillo , Maria Beatriz Nieto-Morone , Richard Russell , Jesús Marín Muñoz , Juan Rodriguez Sánchez , Javier Yañez Gonzalez , María del Carmen Alonso-García

{"title":"Advances in the location and repairing of ribbon interruptions in photovoltaic modules","authors":"Félix G. Rosillo , Maria Beatriz Nieto-Morone , Richard Russell , Jesús Marín Muñoz , Juan Rodriguez Sánchez , Javier Yañez Gonzalez , María del Carmen Alonso-García","doi":"10.1016/j.renene.2025.122828","DOIUrl":"10.1016/j.renene.2025.122828","url":null,"abstract":"<div><div>One of the most frequent failures in PV modules is the total or partial interruption of ribbons that connect the cells in the module. In the case of modules with cells that have two ribbons on their surface, it is possible to distinguish between single interruptions (affecting only one ribbon of a cell) and twin interruptions (affecting both ribbons of a cell). In the case of repairing twin interruptions, it is possible to restore a significant part of the expected power, according to the nominal values of the module, which in modules with three diodes is in the order of a multiple of 1/3 of the nominal module power. In the case of repairing single interruptions, the recovered power reaches more modest values, up to 6 percentage points of the power prior to the repair. This article also shows the benefits to module fill factor depending on the repairs made and discusses metastable interruptions and the occurrence of new interruptions that can occur after initial repairs are made. A classification of single interruptions is proposed based on their type, and several methods to determine their location are described, highlighting one in particular for its simplicity and low cost. Finally, the relevance of carrying out a total repair (twin and single interruptions) or a partial repair (twin interruptions only) is discussed.</div></div>","PeriodicalId":419,"journal":{"name":"Renewable Energy","volume":"246 ","pages":"Article 122828"},"PeriodicalIF":9.0,"publicationDate":"2025-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143636805","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Conventional and advanced exergy analysis of a novel SOFC-MGT hybrid power system coupled with external solar methane hydrogen production process

IF 9 1区工程技术

Renewable Energy Pub Date : 2025-03-12 DOI: 10.1016/j.renene.2025.122881

Qiushi Wang , Liqiang Duan , Shangyou Huang , Xinlu Li , Luyao Liu , Chu Wang , Xingqi Ding , Nan Zheng , Weijia Jiao

{"title":"Conventional and advanced exergy analysis of a novel SOFC-MGT hybrid power system coupled with external solar methane hydrogen production process","authors":"Qiushi Wang , Liqiang Duan , Shangyou Huang , Xinlu Li , Luyao Liu , Chu Wang , Xingqi Ding , Nan Zheng , Weijia Jiao","doi":"10.1016/j.renene.2025.122881","DOIUrl":"10.1016/j.renene.2025.122881","url":null,"abstract":"<div><div>The world is facing energy shortages. One of the ways to reduce energy usage in energy systems is to introduce renewable energy to complement fossil fuels, and the other way is to reduce exergy destruction to improve efficiency. A novel solid oxide fuel cell – micro gas turbine (SOFC-MGT) hybrid power system coupled with solar thermochemical hydrogen production process is proposed to realize multi-energy complementarity and efficient power generation. Advanced exergy analysis method can reveal the underlying causes of exergy destruction and provide guidance for the optimization potential in energy systems. The proposed system is comprehensively studied using both the conventional and advanced exergy analysis methods. The results indicate that the avoidable exergy destruction accounts for 22.61 % of the total destruction. The system's endogenous exergy destructions are mainly due to the strong irreversibility of the components themselves. Both heat exchanger 3 (HE3) and air compressor (AC) are most affected by other components, while improving the performance of both SOFC and afterburner have the most significant improvement in system efficiency. The endogenous unavoidable exergy destruction of SOFC, MGT, AC and reactor are significant, indicating they should be optimized first, which is distinct from the conventional exergy analysis's findings.</div></div>","PeriodicalId":419,"journal":{"name":"Renewable Energy","volume":"246 ","pages":"Article 122881"},"PeriodicalIF":9.0,"publicationDate":"2025-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143636754","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Optimization of biomethane production from purified biowaste pyrolysis gas: A comparative techno-economic assessment

IF 9 1区工程技术

Renewable Energy Pub Date : 2025-03-12 DOI: 10.1016/j.renene.2025.122865

Marvin B. Brands , Patrick Beuel , Felipe Torres-Rivera , Robin Beckmüller , Mazloum Sheikh Ayoub , Peter Stenzel

{"title":"Optimization of biomethane production from purified biowaste pyrolysis gas: A comparative techno-economic assessment","authors":"Marvin B. Brands , Patrick Beuel , Felipe Torres-Rivera , Robin Beckmüller , Mazloum Sheikh Ayoub , Peter Stenzel","doi":"10.1016/j.renene.2025.122865","DOIUrl":"10.1016/j.renene.2025.122865","url":null,"abstract":"<div><div>This study investigates a novel pathway for biomethane production by converting biogenic residues into product gas through pyrolysis, water-gas shift reaction, and microbial methanogenesis. A key challenge in this process is gas purification, as the product gas must meet certain requirements for grid feed-in while ensuring economic feasibility. Unlike conventional biomethane production via anaerobic digestion in biogas plants, this approach enables the utilization of recalcitrant biogenic residues while minimizing process-immanent limitations. The research integrates gas purification with a techno-economic assessment, focusing on achieving a higher H<sub>2</sub>/CO<sub>2</sub> ratio through CO<sub>2</sub> removal, thereby minimizing additional hydrogen demand. A unique case study demonstrates that expanding the process with a scrubbing unit reduces hydrogen procurement costs by approximately 51 %, achieving the lowest levelized cost of biomethane at 143 €/MWh. Sensitivity analysis reveals that hydrogen price is the most critical factor for economic feasibility, while electricity price has minor impact. The findings provide actionable insights for scaling biomethane production from biogenic residues via pyrolysis, offering a promising alternative to conventional biogas upgrading. The study highlights the crucial role of tailored gas purification strategies and recommends scrubbing units as a key component for future industrial applications.</div></div>","PeriodicalId":419,"journal":{"name":"Renewable Energy","volume":"245 ","pages":"Article 122865"},"PeriodicalIF":9.0,"publicationDate":"2025-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143629045","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Thermal analysis of medium-depth borehole heat exchanger coupled layered stratum thermal conductivity

IF 9 1区工程技术

Renewable Energy Pub Date : 2025-03-12 DOI: 10.1016/j.renene.2025.122880

Shihao Dong , Yuelong Yu , Bingxue Li , Long Ni

{"title":"Thermal analysis of medium-depth borehole heat exchanger coupled layered stratum thermal conductivity","authors":"Shihao Dong , Yuelong Yu , Bingxue Li , Long Ni","doi":"10.1016/j.renene.2025.122880","DOIUrl":"10.1016/j.renene.2025.122880","url":null,"abstract":"<div><div>Medium-depth coaxial borehole heat exchanger is a crucial option for low-carbon heating. However, the complex and variable nature of medium-deep formations poses challenges for accurate thermal conductivity determination, and its correlation with heat transfer mechanisms remains unclear. Hence, a thermal conductivity model incorporating temperature corrections and lithological variations was developed and integrated into a layered analytical heat transfer model. Model analysis shows that strata thermal conductivity and temperature both have significant effects on heat extraction. Geological tests and applications based on Shenyang case found that due to good thermal conductivity of rock skeleton (gneiss), low porosity (1.8 %) and no mud, maximum value of 3.34 W m<sup>−1</sup> K<sup>−1</sup> was observed near 1063.9–1068.8 m. The average thermal conductivity is 2.58 W m<sup>−1</sup> K<sup>−1</sup>. Formations with low porosity, low permeability, and low mud-content are denser, which favors heat conduction, contrary to hydro-geothermal wells that rely on highly porous and fractured formations. The deviation between the calculated results and thermal response test from two regions did not exceed 5.21 %, achieving a high precision. This method enables direct determination of formation thermal properties based on well-logging, providing a convenient and engineering-friendly approach.</div></div>","PeriodicalId":419,"journal":{"name":"Renewable Energy","volume":"246 ","pages":"Article 122880"},"PeriodicalIF":9.0,"publicationDate":"2025-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143642655","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0