Renewable and Sustainable Energy Reviews最新文献

{"title":"Enhancing wind turbine energy efficiency: Tribo-dynamics modeling and shape modification","authors":"Jiabao Yin ,&nbsp;Xianghui Meng ,&nbsp;Shuai Cheng","doi":"10.1016/j.rser.2024.115071","DOIUrl":"10.1016/j.rser.2024.115071","url":null,"abstract":"<div><div>The performance of wind turbine gearbox planetary bearing systems directly influences the turbine's reliability, energy production efficiency, and economy. However, the lack of a comprehensive model to accurately predict the dynamic meshing load of helical gears and temperature effects hinders a deeper understanding of the transient performance of gearbox planetary sliding bearings. Additionally, research on shape modification for gearbox planetary sliding bearings remains inadequate. This study develops a comprehensive tribo-dynamics model that considers the dynamic meshing forces of helical gears and temperature effects. The model's effectiveness is validated by the concordance between experimental data from a full-size test bench and simulation results on oil film thickness and temperature. Transient simulation analysis indicates insufficient lubrication, high-temperature rise, and severe contact that reduce electricity production efficiency and reliability, all of which occur at bearing axial edges. Therefore, three modified bearing designs (super-elliptical, trapezoidal, and quadratic shapes) are introduced, and their improved performance is thoroughly compared. The super-elliptical design increases the minimum oil film thickness by 2.60 μm. The trapezoidal design reduces cumulative friction energy losses by 4.34 %. Each modified design successfully reduces the edge wear and oil temperature. The underlying enhancing mechanisms are revealed to be oil film uniform redistribution and lubrication states' alteration. This work can contribute to the reliability, electricity production efficiency, and economy of global wind turbines and support the achievement of net-zero emission goals.</div></div>","PeriodicalId":418,"journal":{"name":"Renewable and Sustainable Energy Reviews","volume":null,"pages":null},"PeriodicalIF":16.3,"publicationDate":"2024-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142572328","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}

{"title":"Harnessing visible light for sustainable biodiesel production with Ni/Si/MgO photocatalyst","authors":"Aminul Islam ,&nbsp;Siow Hwa Teo ,&nbsp;Md. Tarekul Islam ,&nbsp;Alam Hossain Mondal ,&nbsp;Hasan Mahmud ,&nbsp;Sozib Ahmed ,&nbsp;Md Ibrahim ,&nbsp;Yun Hin Taufiq-Yap ,&nbsp;Abdulkareem-Alsultan G. ,&nbsp;Mohd Lokman Hossain ,&nbsp;Md. Chanmiya Sheikh ,&nbsp;Adiba Islam Rasee ,&nbsp;Ariyan Islam Rehan ,&nbsp;R.M. Waliullah ,&nbsp;Mrs Eti Awual ,&nbsp;Md. Munjur Hasan ,&nbsp;Mohammed Sohrab Hossain ,&nbsp;Khadiza Tul Kubra ,&nbsp;Md. Shad Salman ,&nbsp;Md. Nazmul Hasan ,&nbsp;Md. Rabiul Awual","doi":"10.1016/j.rser.2024.115033","DOIUrl":"10.1016/j.rser.2024.115033","url":null,"abstract":"<div><div>Sustainable energy sources frequently demonstrate greater reliability and resilience in comparison to conventional energy sources. Biodiesel, with its markedly reduced carbon footprint when compared to petroleum-based diesel fuel, owes this advantage to its production from renewable resources. Heterojunction photocatalysts have gained significant interest due to their immense promise in tackling environmental challenges. In this study, a highly efficient photocatalyst, Ni/Si/MgO, for biodiesel production under visible light irradiation was synthesized using a solid-phase reaction method with silica as the silicon source, along with Ni and MgO. The surface functionality of Ni/Si/MgO was crucial for achieving high efficiency of photocatalytic systems, as evident from XPS. The transesterification reaction on the Ni/Si/MgO photocatalyst proceeds by the formation of SiH and SiOH bonds over the catalyst. The photocatalytic activities of Ni/Si/MgO photocatalysts were higher than those of the Si/MgO nanoparticle when exposed to light. Achieving an optimal yield of 98 %, the biodiesel production was carried out under the following reaction conditions: A catalyst dosage of 2 % by weight was utilized, along with a methanol-to-oil molar ratio of 12:1, and the entire procedure was executed within a duration of 3.5 h. Plasmonic near-fields are speculated to be responsible for the increased transesterification activity along the Ni/Si/MgO interface. In order to carry out the transesterification reaction, electron-hole pairs are generated along the Ni/Si/MgO interface, where plasmonic near-fields are highly concentrated. This study contributes a significant perspective on mechanisms governing the process of efficient plasmonic photocatalysis responsive to visible light. These findings hold the potential to offer valuable guidance in the formulation and design of next-generation, high-performance photocatalysts.</div></div>","PeriodicalId":418,"journal":{"name":"Renewable and Sustainable Energy Reviews","volume":null,"pages":null},"PeriodicalIF":16.3,"publicationDate":"2024-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142572329","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}

{"title":"China's Belt & Road Initiative wind energy cooperation: Wind of change for the Chinese energy finance?","authors":"François Bega ,&nbsp;Boqiang Lin","doi":"10.1016/j.rser.2024.115069","DOIUrl":"10.1016/j.rser.2024.115069","url":null,"abstract":"<div><div>While China's leadership in wind turbines export has been increasingly spotlighted, studies remain extremely limited concerning the repartition of Chinese investments in international power projects as well as the socio-economic and environmental implications of wind farms for the developing countries of the Belt &amp; Road Initiative (BRI). To fill this gap, this research investigates the repartition of wind farms funding from China's foreign direct investment (FDI) and policy banks, especially in comparison with other BRI power projects. The methodology synergizes quantitative geospatial analysis and qualitative empirical analysis. This study reveals that a) although China is leading the wind turbines export worldwide, the financing reorientation toward wind energy should be pursued, b) BRI nations, aligned with China's dedication to improving their sustainability, need more renewables FDI, c) although wind turbines hold vast potential in developing countries, the large wind farms require long-term socio-economic and environmental safeguards.</div></div>","PeriodicalId":418,"journal":{"name":"Renewable and Sustainable Energy Reviews","volume":null,"pages":null},"PeriodicalIF":16.3,"publicationDate":"2024-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142572324","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}

{"title":"Solar electrification in isolated Amazonian systems: Barriers and mitigation strategies","authors":"Yiselis Rodriguez Vignon,&nbsp;Fernando Luiz Cyrino Oliveira,&nbsp;Rodrigo Goyannes Gusmão Caiado,&nbsp;Carlos Alejandro Diaz Schery","doi":"10.1016/j.rser.2024.115072","DOIUrl":"10.1016/j.rser.2024.115072","url":null,"abstract":"<div><div>The Amazon region faces significant challenges in accessing electricity in isolated systems. Solar photovoltaic energy with batteries is a promising alternative that aligns with the Sustainable Development Goals. However, its implementation is hindered by complex barriers. Previous studies have addressed specific aspects, but there is a need for a comprehensive analysis that identifies barriers and strategies considering multiple dimensions and their relation to the SDGs. Through a systematic literature review, this article aims to identify and analyse the main barriers and strategies for developing solar photovoltaic energy with batteries in isolated Amazonian systems. Thirty-two articles were analysed, identifying 19 barriers across six dimensions and ten mitigation strategies. Simple Correspondence Analysis was used to investigate the relationship between barriers and strategies. A conceptual framework was proposed to link barriers, strategies, and SDGs. The results highlight the complexity of the challenge, requiring a holistic approach aligned with the SDGs and integrating sustainability criteria into operational management. The study provides significant implications for public policies and private initiatives, promoting sustainable energy solutions adapted to local Amazonian realities. It also offers guidelines for effectively implementing strategies and contributes to advancing knowledge in renewable energy for isolated regions.</div></div>","PeriodicalId":418,"journal":{"name":"Renewable and Sustainable Energy Reviews","volume":null,"pages":null},"PeriodicalIF":16.3,"publicationDate":"2024-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142572323","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}

{"title":"Advancing green hydrogen purification: Multiscale evaluation of membrane processes using novel software, pySembrane","authors":"Nahyeon An ,&nbsp;Boram Gu ,&nbsp;Junghwan Kim ,&nbsp;Seongbin Ga","doi":"10.1016/j.rser.2024.114998","DOIUrl":"10.1016/j.rser.2024.114998","url":null,"abstract":"<div><div>Membrane-based separation processes are increasingly recognized as effective purification systems for green hydrogen, produced through ammonia cracking technology. These processes are valued for their energy efficiency, operational simplicity, and selective capabilities, and they benefit significantly from simulation-based approaches. Such methodologies expedite the exploration and evaluation of various membrane materials and operational strategies, which are crucial for the rapid development and optimization of membrane systems. However, the application of these simulations is often limited due to restricted access to process simulations and compatibility issues with existing commercial software tools. Additionally, the absence of software capable of assessing material properties and calculating the economic impacts at different scales limits the integration of studies from the molecular to the plant level. To address these challenges, this study introduces pySembrane, an open-source Python-based simulation package designed to lower the barriers to entry for the development and analysis of membrane systems. PySembrane provides users with advanced tools for the analysis of membrane systems, including specialized functions for evaluating material properties and process economics. This study presents case studies that illustrate the use of pySembrane in the screening of membrane materials and the optimization of membrane-based separation processes for the purification of green hydrogen. It also presents a case study on the integration of the membrane-based separation process with other unit operations, such as compressors and catalytic reactors. These case studies demonstrate the effectiveness of pySembrane in advancing membrane materials and operational strategies for green hydrogen separation, highlighting its potential to enhance process efficiency and sustainability.</div></div>","PeriodicalId":418,"journal":{"name":"Renewable and Sustainable Energy Reviews","volume":null,"pages":null},"PeriodicalIF":16.3,"publicationDate":"2024-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142572321","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}

{"title":"A review on photocatalytic seawater splitting with efficient and selective catalysts for hydrogen evolution reaction","authors":"Aayush Gupta ,&nbsp;Blaz Likozar ,&nbsp;Sachin Jaidka","doi":"10.1016/j.rser.2024.115074","DOIUrl":"10.1016/j.rser.2024.115074","url":null,"abstract":"<div><div>The rising global demand for clean and renewable energy has spurred interest in innovative technologies capable of addressing both energy production and environmental challenges. Among these, photocatalytic seawater splitting has emerged as a highly promising approach for generating hydrogen, a clean fuel, by harnessing sunlight. Unlike traditional water-splitting techniques that depend on freshwater resources, seawater splitting offers a sustainable alternative by utilizing the vast and readily available oceanic reserves. This process leverages advanced photocatalytic materials, such as metal oxides (e.g., TiO₂, ZnO), perovskites, and 2D materials like graphitic carbon nitride (g-C₃N₄), to enhance the efficiency of the hydrogen evolution reaction (HER). This review provides a comprehensive analysis of the latest advancements in photocatalytic seawater splitting, focusing on catalyst design, performance optimization, and overcoming key challenges such as corrosion, photocatalyst stability, and the detrimental effects of seawater components, including chloride ions and metal cations, on hydrogen production. Special attention is given to the role of novel materials, such as nanosheet arrays, metal-organic frameworks (MOFs), and defect-engineered catalysts, in improving charge separation, reducing recombination rates, and enhancing light absorption under solar irradiation. Furthermore, the review addresses the impact of seawater composition, including the presence of ions such as Na⁺, Mg²⁺, and Ca²⁺, on the photocatalytic process, and discusses strategies to mitigate undesirable side reactions, such as chlorine evolution. The commercial potential of photocatalytic seawater splitting is also considered, highlighting its scalability and integration into renewable energy infrastructures to produce hydrogen as a viable alternative to fossil fuels.</div></div>","PeriodicalId":418,"journal":{"name":"Renewable and Sustainable Energy Reviews","volume":null,"pages":null},"PeriodicalIF":16.3,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142572322","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}

{"title":"The influence of cloud cover on the reliability of satellite-based solar resource data","authors":"Yu Xie ,&nbsp;Manajit Sengupta ,&nbsp;Jaemo Yang ,&nbsp;Aron Habte ,&nbsp;Grant Buster ,&nbsp;Brandon Benton ,&nbsp;Michael Foster ,&nbsp;Andrew Heidinger ,&nbsp;Yangang Liu","doi":"10.1016/j.rser.2024.115070","DOIUrl":"10.1016/j.rser.2024.115070","url":null,"abstract":"<div><div>Satellite-based solar resource data are often developed and validated by using binary cloudiness categories: clear sky or overcast cloudy sky. To investigate the reliability of solar resource data in partially cloudy conditions, we estimate cloud fraction using two distinct algorithms: a physical retrieval model using surface observed global horizontal irradiance (GHI) and direct normal irradiance (DNI) and a temporal average of cloud mask data estimated by the observed DNI. Our analysis reveals a significant presence of scattered clouds, broken clouds, and mismatches between satellite- and surface-based cloud data at 17 surface sites across the contiguous United States, though confidently clear and cloudy conditions collectively account for more than 70 % of the data. Solar radiation is computed using the National Solar Radiation Database (NSRDB) algorithm and validated using surface observations. Our findings suggest that, in the presence of scattered clouds, NSRDB data for clear-sky conditions can be subject to significant overestimation. In cloudy-sky conditions classified by satellite data, DNI computed by the Fast All-sky Radiation Model for Solar applications with DNI (FARMS-DNI) can be underestimated when limited clouds are detected by surface observations. The bias observed in several cloudiness categories indicates that the NSRDB is exceptionally accurate in confidently clear conditions. However, clear-sky conditions with scattered clouds and mismatched cloud data contribute significantly to the overall uncertainties in the NSRDB. Therefore, future improvements in solar resource data should involve development and implementation of satellite-derived cloud fraction and should consider a novel radiative transfer model accounting for amplified cloud reflection. The evaluation within cloudiness categories also provides a physical rationale for the superior performance of FARMS-DNI compared to the Direct Insolation Simulation Code (DISC) in both cloudy-sky and all-sky conditions.</div></div>","PeriodicalId":418,"journal":{"name":"Renewable and Sustainable Energy Reviews","volume":null,"pages":null},"PeriodicalIF":16.3,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142571820","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}

{"title":"Harvesting the sun twice: Energy, food and water benefits from agrivoltaics in East Africa","authors":"R.J. Randle-Boggis ,&nbsp;G.A. Barron-Gafford ,&nbsp;A.A. Kimaro ,&nbsp;C. Lamanna ,&nbsp;C. Macharia ,&nbsp;J. Maro ,&nbsp;A. Mbele ,&nbsp;S.E. Hartley","doi":"10.1016/j.rser.2024.115066","DOIUrl":"10.1016/j.rser.2024.115066","url":null,"abstract":"<div><div>Food, energy and water insecurity are concomitant challenges facing many communities in East Africa. Agrivoltaic systems – agriculture integrated with photovoltaic panels – address all three challenges, providing low carbon electricity, food production and water conservation on the same land area. Agrivoltaics have proven benefits for the food-energy-water nexus in the USA, Europe and Asia, but research is lacking in sub-Saharan Africa, where energy access remains low, and climate change and water scarcity threaten food systems. This study presents evidence for concomitant electricity generation, food production and water conservation from agrivoltaic systems in Tanzania and Kenya, demonstrating the viability of these systems for both grid-tied agribusinesses and rural, off-grid communities. Performance of some crops improved under agrivoltaics, generating higher incomes for farmers and agribusinesses while reducing energy bills and/or enhancing energy supply. Crop survivability during a warm period was greater under the agrivoltaic system, indicating potential for climate change resilience. Panel shading reduced irrigation demand, thus some crops achieved greater yields while needing less water input. Rainwater harvesting from panel runoff further reduced irrigation needs. Combining energy infrastructure with agriculture enhanced land productivity for all crops at both sites. Agrivoltaics, whether grid-tied or off-grid, could address multiple Sustainable Development Goals in East Africa simultaneously by contributing to energy security, climate change-resilient food production, and water conservation in the region.</div></div>","PeriodicalId":418,"journal":{"name":"Renewable and Sustainable Energy Reviews","volume":null,"pages":null},"PeriodicalIF":16.3,"publicationDate":"2024-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142560817","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}

{"title":"A review on applications of optical visualization technologies for water management in proton exchange membrane fuel cells","authors":"Chihua Lu ,&nbsp;Chenyu Li ,&nbsp;Zhien Liu ,&nbsp;Yongchao Li ,&nbsp;Hui Zhou ,&nbsp;Hao Zheng","doi":"10.1016/j.rser.2024.115030","DOIUrl":"10.1016/j.rser.2024.115030","url":null,"abstract":"<div><div>Effective water management is crucial for performing proton exchange membrane fuel cells. The liquid water can be directly observed using an Optically visualized proton exchange membrane fuel cell system that employs optical visualization technologies, which brings great convenience for water management. It is challenging to comprehensively understand and summarize the applications of these technologies. Through insightful analyses of relevant research results, this study provides the first comprehensive and categorized review of optical visualization technologies and their applications in water management. First, the study reviews optical visualization systems, focusing on their composition and differences between in-situ and ex-situ systems, the effects of transparent materials, imaging device selection, and image processing methods. These are key points for optical visualization systems. This can save a lot of time and economic costs in the design process. The review then categorizes the applications of optical visualization technologies in water management research, covering two-phase flow in porous regions and flow fields. This categorization helps to clearly understand the current state of research in different fields and the characteristics of the optical visualization systems used. Finally, a critical assessment of the problems and potential applications of optical visualization systems is presented. The purpose of this review is to provide relevant studies, practitioners and policy makers with a foundation and reference on optical visualization systems and the application of optical visualization techniques in water management research.</div></div>","PeriodicalId":418,"journal":{"name":"Renewable and Sustainable Energy Reviews","volume":null,"pages":null},"PeriodicalIF":16.3,"publicationDate":"2024-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142560821","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}

{"title":"Public acceptance of green hydrogen production in Germany","authors":"Johannes Buchner,&nbsp;Klaus Menrad,&nbsp;Thomas Decker","doi":"10.1016/j.rser.2024.115057","DOIUrl":"10.1016/j.rser.2024.115057","url":null,"abstract":"<div><div>To achieve greenhouse gas neutrality by 2045, Germany must reduce its CO₂ emissions, and German policies aim to ramp up domestic green hydrogen production. So far, green hydrogen production in Germany is still in its early stages, with few existing green hydrogen plants. Amongst other factors, public acceptance is crucial for successfully expanding green hydrogen production. However, few studies have investigated the acceptance of green hydrogen plants or production. Thus, this study aims to identify key factors influencing the acceptance of green hydrogen plants in Germany, focusing on the influence of participation in green hydrogen projects. A nationwide online survey (n = 1203) collected data from 1203 respondents living in regions with existing or planned green hydrogen plants in Germany. A multiple linear regression model identified eight key factors that influence the acceptance, including trust in plant safety, trust in project managers, information, risk/benefit perception, experience with green hydrogen, and gender, all having a significant positive impact on the acceptance of green hydrogen plants in Germany. Conversely, participation in the form of consultation and environmental self-identity negatively influence the acceptance of green hydrogen plants in Germany. The results support political decision-makers and stakeholders in realising future green hydrogen projects with high societal acceptance and address potential concerns, thus facilitating the transition towards a more sustainable energy future in Germany and elsewhere.</div></div>","PeriodicalId":418,"journal":{"name":"Renewable and Sustainable Energy Reviews","volume":null,"pages":null},"PeriodicalIF":16.3,"publicationDate":"2024-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142560818","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}