Cleaner Energy Systems最新文献

{"title":"Design of an Agro-photovoltaic system to find shade tolerant crops perspective to Bangladesh","authors":"Raihan Chowdhury ,&nbsp;Abu Shufian ,&nbsp;Saima Nusrat ,&nbsp;Nur Mohammad","doi":"10.1016/j.cles.2025.100174","DOIUrl":"10.1016/j.cles.2025.100174","url":null,"abstract":"<div><div>Agro-photovoltaic (APV) technology addresses the challenges of land-use competition by enabling simultaneous solar power generation and food production, thus mitigating potential economic, ecological, political, and social conflicts in Bangladesh's future energy landscape. This study investigates the growth and yield of shade-tolerant crops, including tomato, brinjal, green chili, lettuce, aloe vera, under shaded and non-shaded conditions. Key plant growth parameters such as height, number of leaves, flowers, fruits, and fruit weight are measured to evaluate crop performance in the APV system. The Land Equivalent Ratio (LER) is utilized to compare the efficiency of food and energy production in APV systems against traditional monoculture farming, identifying optimal crops for APV integration. Energy generation from a stand-alone APV (SAPV) system is measured and simulated using PVsyst software to optimize system performance and maximize power output. Results indicate that brinjal, lettuce, aloe vera exhibit yield advantages in the APV system, while green chili show disadvantages, and tomato demonstrates no significant difference. The SAPV system achieves an average yearly performance ratio of 75.4 % and a solar fraction (FR) of 0.914, consistently meeting energy demands with an average daily energy production of 1.157 kWh. This study highlights the feasibility of APV systems as a sustainable model for integrated food and energy production in Bangladesh, demonstrating their potential to enhance land-use efficiency and contribute to the nation's energy and agricultural resilience.</div></div>","PeriodicalId":100252,"journal":{"name":"Cleaner Energy Systems","volume":"10 ","pages":"Article 100174"},"PeriodicalIF":0.0,"publicationDate":"2025-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143133854","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Digitilising the energy sector: A comprehensive digital twin framework for biomass gasification power plant with CO2 capture","authors":"Peter Akhator ,&nbsp;Bilainu Oboirien","doi":"10.1016/j.cles.2025.100175","DOIUrl":"10.1016/j.cles.2025.100175","url":null,"abstract":"<div><div>The push to decarbonize the energy sector by incorporating renewable sources is increasing the complexity of power plant operations. One potential solution is to digitize power plants through digital twin (DT) technology, which can improve operational efficiencies and reduce maintenance costs. However, the application of DT in power plants remains in its early stages, with no existing implementations focused on gasification technology. This study aims to develop a comprehensive digital twin framework for a biomass gasification power plant with CO2 capture (DT-BGPP).</div><div>An overview of existing DT research in power plants and their classifications was conducted to assess the current state of the field and identify gaps. Based on this analysis, essential characteristics for the DT-BGPP framework were defined, leading to the identification of its main components. The classification revealed a common gap in mid-tier categories, with most available power plant Dts lacking complete bidirectional data flow with their physical counterparts. The key components of DT-BGPP include a high-order science-informed dynamic model, a data-driven model, actual data, pre-executed localized simulations, and a system genome.</div><div>Recommendations for advancing the proposed DT-BGPP include establishing connections between all framework components to achieve a fully integrated digital twin for a biomass gasification power plant with CO₂ capture.</div></div>","PeriodicalId":100252,"journal":{"name":"Cleaner Energy Systems","volume":"10 ","pages":"Article 100175"},"PeriodicalIF":0.0,"publicationDate":"2025-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143133760","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Energy efficiency and ISO 50001:2018 implementation in seafood processing industries: A comprehensive analysis and strategic framework","authors":"Mary Saniya Stephen,&nbsp;Shibu Arkkakadavil Valsalan","doi":"10.1016/j.cles.2025.100173","DOIUrl":"10.1016/j.cles.2025.100173","url":null,"abstract":"<div><div>Energy is an indispensable resource in the seafood processing industry. This pioneering study explores energy efficiency using Specific energy consumption (SEC) model in Kerala's seafood processing industry, shedding light on its energy dynamics amidst growing calls for conservation and cost optimization. With an average Specific Energy Consumption (SEC) of 159.2 kWh/MT and an energy cost of 965.9 INR/MT, the industry faces notable energy challenges. The study finds a moderate correlation (0.748) between production and energy consumption, and strong correlations between production and energy cost (0.763), and energy consumption and energy cost (0.992), highlighting the direct link between energy use and costs. Regression analysis confirms that SEC significantly influences energy costs, emphasizing the need for efficient energy management. The research advocates for adopting ISO 50001:2018, integrated with the Food-Energy-Water (FEW) Nexus, as a framework for optimizing energy and resource use. A customized action plan for implementing this standard in shrimp processing facilities aims to reduce consumption, cut costs, and enhance sustainability, offering a robust foundation for future energy efficiency initiatives in the sector.</div></div>","PeriodicalId":100252,"journal":{"name":"Cleaner Energy Systems","volume":"10 ","pages":"Article 100173"},"PeriodicalIF":0.0,"publicationDate":"2025-01-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143133761","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Perspectives and pathways to a Carbon-free Advanced Power Network (CAPN) in Bangladesh for sustainable development","authors":"Abu Shufian ,&nbsp;Md Tanvir Rahman ,&nbsp;Sowrov Komar Shib ,&nbsp;Durjoy Roy Dipto ,&nbsp;Shaharier Kabir ,&nbsp;Shaikh Anowarul Fattah ,&nbsp;Nur Mohammad ,&nbsp;Mohammad Abdul Mannan","doi":"10.1016/j.cles.2025.100172","DOIUrl":"10.1016/j.cles.2025.100172","url":null,"abstract":"<div><div>The twenty-first century is marked by an urgent need to combat global warming and environmental degradation, primarily driven by the extensive use of fossil fuels for energy production over the past two centuries. As the world faces the severe consequences of climate change, the transition to renewable energy (RE) has become a critical focus of sustainable development strategies. Renewable energy sources (RES) such as solar, wind, and biomass are not only environmentally friendly but also essential for achieving long-term energy security and economic stability. The importance of RE is underscored by the United Nations Sustainable Development Goals (SDGs), particularly SDG-7, which aims to ensure access to affordable, reliable, sustainable, and modern energy for all. SDG-7 highlights the necessity of increasing the share of RE in the global energy mix, improving energy efficiency, and promoting international collaboration to enhance clean energy research and technology. This research explores how Bangladesh can achieve a 100 % reliable and adaptable renewable energy (RE) output by 2050, focusing on the transition away from gas, coal, and oil-based power systems as the primary strategy for reducing fossil carbon emissions. The study examines the pathways to establishing a fully decarbonized and cost-effective energy grid in Bangladesh, emphasizing the challenges of converting the existing non-renewable power grid into a flexible and reliable RE system. From both technological and energy perspectives, the research investigates alternative methods and technologies to conventional fossil-dependent power systems and their potential to lead Bangladesh into a post-fossil fuel era. As a result, the proposed Carbon-free Advanced Power Network (CAPN) 2021–2050 model will offer the most cost-effective and environmentally friendly energy generation solution, with minimal greenhouse gas emissions and a fully carbon-free output. Intelligent energy management systems will play a key role in this transition. According to the suggested roadmap, there will be no need to construct new gas, coal, furnace oil, or nuclear power plants, and the existing fossil fuel capacity will be gradually phased out as it reaches the end of its technological lifespan.</div></div>","PeriodicalId":100252,"journal":{"name":"Cleaner Energy Systems","volume":"10 ","pages":"Article 100172"},"PeriodicalIF":0.0,"publicationDate":"2025-01-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143133756","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Efficient dual-mode power generation with sustainable biogas and biodiesel blends in diesel generators","authors":"Ratchagaraja Dhairiyasamy ,&nbsp;Deepika Gabiriel","doi":"10.1016/j.cles.2025.100171","DOIUrl":"10.1016/j.cles.2025.100171","url":null,"abstract":"<div><div>The increasing demand for renewable energy solutions has led to the exploration of sustainable biofuels like biogas and biodiesel for power generation. However, the combined use of these fuels in small-scale dual-fuel systems remains underexplored. This study aims to evaluate the performance of a dual-fuel diesel generator operating with waste-derived biodiesel and biogas. Biodiesel was synthesized from waste frying oil through transesterification, and biogas with a methane content of 63.5 % was sourced from an agricultural digester. A 5 kVA diesel generator was modified for dual-fuel operation and tested under varying electrical loads and biodiesel blend ratios (B8, B20, B50, B80, and B100). Results revealed that dual-fuel operation increased power output by up to 21.77 % compared to diesel-only mode and achieved liquid fuel savings of 28.74 % to 31.08 % across the blends. Efficiency in normal mode remained higher, peaking at 25.74 % for B100. The findings demonstrate the feasibility of integrating biogas and biodiesel for small-scale power generation, offering a cost-effective and sustainable alternative for off-grid applications. Future research should address emissions analysis, biogas supply optimization, and scalability for broader implementation.</div></div>","PeriodicalId":100252,"journal":{"name":"Cleaner Energy Systems","volume":"10 ","pages":"Article 100171"},"PeriodicalIF":0.0,"publicationDate":"2025-01-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143133758","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"An Eulerian-Eulerian multifluid simulation for co-combustion of coal and sawdust in industrial scale circulating fluidized bed boiler","authors":"Vasujeet Singh,&nbsp;Pruthiviraj Nemalipuri,&nbsp;Harish Chandra Das,&nbsp;Vivek Vitankar","doi":"10.1016/j.cles.2025.100169","DOIUrl":"10.1016/j.cles.2025.100169","url":null,"abstract":"<div><div>Co-combustion of coal and biomass reduced the net Carbon di-oxide emissions. The fluidized bed technology is best suited to burn biomass and coal combinations without major modifications to the combustion systems. Experimentation of large-scale CFBC boilers is uneconomical and time-consuming. Mathematical modelling has gained visibility in the last several decades and allows researchers to explore different circumstances and design optimization. The current research presents mathematical modelling of an industrial scale CFBC boiler (165 TPH CFBC Boiler for 100 MWe CPP) functioning in Hindalco Industries, Odisha, India, using co-combustion of coal and sawdust biomass (90 % coal + 10 % sawdust). The simulation is performed using the Eulerian-Eulerian multifluid model by considering the four different Eulerian phases (coal, sawdust, sand, and mixture gas). The kinetic theory of granular (KTGF) flows is used to model the collisions between bed material and fuel particles. User-defined functions (written in C programming language) are employed to model the reaction kinetics of heterogeneous chemical reactions. The numerical methodology is validated with the onsite industrial data of pressure drop, fluidized bed height, suspension density, bed voidage, and temperature variations. The comparison of pressure drop, fluidized bed height, axial velocity profiles, sand and mixture gas temperature variations, gas compositions, and pollutant emissions (Sulfur di-oxide and nitrous oxide) using solo coal and blended fuel are presented in the result section. Hydrodynamics steady reveals the recirculation of sand particles in the fluidized bed region of the boiler. The comparison of solo coal and blended fuel combustion study reveals an 11.42 % reduction in pressure drop, 13.17 % increase in oxygen mass fraction, 10.63 % reduction in carbon mono oxide mass fraction, 16.26 % reduction in Sulfur di-oxide mass fraction, and 7.17 % reduction in nitrous oxide mass fraction is observed at the boiler outlet while using the 10 % sawdust blends with 90 % coal.</div></div>","PeriodicalId":100252,"journal":{"name":"Cleaner Energy Systems","volume":"10 ","pages":"Article 100169"},"PeriodicalIF":0.0,"publicationDate":"2025-01-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143133762","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Integrating environmental impacts into Cost-Benefit Analysis using emergy","authors":"Vivek Radhakrishnan ,&nbsp;Praveenkumar Selvapathy ,&nbsp;Matthew Garvin ,&nbsp;Ali Khan ,&nbsp;Chayani Perera ,&nbsp;Fazal Rehman ,&nbsp;Ranuka Hansa","doi":"10.1016/j.cles.2025.100170","DOIUrl":"10.1016/j.cles.2025.100170","url":null,"abstract":"<div><div>Evaluating project viability often relies on economic analysis with environmental impacts either evaluated subjectively in a separate analysis or not at all. The concept of the study was to express environmental impacts as cash flow equivalents through the life of the project to directly compare environmental and economic impacts in a standard cost-benefit analysis. Embodied energy accounting methodologies have been used as a novel method for converting environmental impacts of a project to monetary terms. With environmental impacts expressed in monetary terms on an annual basis, the present value of the environmental impacts could be calculated using an appropriate interest rate based on environmentally-focused investment for a similar project. Application of this method to a case study based on a recent wetland restoration project in eastern Canada demonstrated that inclusion of environmental impact valuation in the analysis of the project changes the project from a net-cost (CAN$-23.5 million) to a net-benefit (CAN$3.7 million) and providing a clear justification for the project. This method is applicable to projects with significant environmental impacts and can be used in a project approval process or for selecting between project approaches.</div></div>","PeriodicalId":100252,"journal":{"name":"Cleaner Energy Systems","volume":"10 ","pages":"Article 100170"},"PeriodicalIF":0.0,"publicationDate":"2025-01-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143133757","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Fuel cells: A technical, environmental, and economic outlook","authors":"Ilham Sebbani ,&nbsp;Mohammed Karim Ettouhami ,&nbsp;Mouaad Boulakhbar","doi":"10.1016/j.cles.2024.100168","DOIUrl":"10.1016/j.cles.2024.100168","url":null,"abstract":"<div><div>In the pursuit of establishing a sustainable fuel cell (FC) energy system, this review highlights the necessity of examining the operational principles, technical details, environmental consequences, and economic concerns collectively. By adopting an integrated approach, the review research into various fuel cells types, extending their applications beyond transportation and evaluating their potential for seamless integration into sustainable practices. A detailed analysis of the technical aspects, including FC membranes, performance, and applications, is presented. The environmental impact of hydrogen generation through fuel cell/electrolyzer is quantitatively assessed, emphasizing a comparative emission footprint against traditional hydrogen generation methods. Economic considerations of fuel cell technology adoption are explored through an extensive examination of market growth and forecasts, and investments into the FC systems. Some flagship commercial projects of FC technology are also discussed along with their future prospective. The article concludes with a thorough analysis of challenges associated with FC adoption, encompassing membrane research, performance hurdles, infrastructure development, and application-specific challenges. This all-round review serves as an indispensable tool for academicians and policymakers, providing a directed and comprehensive FC perspective.</div></div>","PeriodicalId":100252,"journal":{"name":"Cleaner Energy Systems","volume":"10 ","pages":"Article 100168"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143133855","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Forecasting solar energy generation in the mediterranean region up to 2030–2050 using convolutional neural networks (CNN)","authors":"Mahmood Abdoos ,&nbsp;Hamidreza Rashidi ,&nbsp;Pourya Esmaeili ,&nbsp;Hossein Yousefi ,&nbsp;Mohammad Hossein Jahangir","doi":"10.1016/j.cles.2024.100167","DOIUrl":"10.1016/j.cles.2024.100167","url":null,"abstract":"<div><div>This study investigates the significant rise in solar energy production across the Mediterranean region from 2010 to 2022, attributing this growth to technological advancements, cost reductions, and favorable geographic conditions. Utilizing a Convolutional Neural Network (CNN) model, the research forecasts solar energy production for Spain, Egypt, Turkey, France, and Greece up to 2050. Results indicate that Spain is projected to lead with an estimated production of 42,547,680 watt-hours in the summer of 2050, while Turkey is anticipated to reach 20,528,640 watt-hours during the same period. The findings highlight robust growth in all analyzed countries due to increased investments in renewable energy infrastructure and supportive government policies. Quantitative analysis reveals a substantial decline in solar installation costs, exemplified by a decrease from $7.53 per watt in 2010 to $2.65 in 2021 in the U.S., which further stimulates solar energy expansion. The study emphasizes the critical role of government initiatives in promoting renewable energy adoption and outlines how solar energy can significantly contribute to reducing carbon emissions and enhancing energy security. Comparisons with regions such as the Middle East and southwestern United States suggest commonalities in solar potential but also highlight challenges posed by climatic variability and infrastructure differences. The robustness of the CNN model is demonstrated through its ability to integrate real-time climate data, enhancing forecasting accuracy by accounting for factors like solar radiation changes and extreme weather events. The research concludes by advocating for further refinement of the model through hybrid techniques and climate change scenario integration to bolster predictive capabilities. Overall, these insights provide valuable guidance for policymakers and energy producers in planning sustainable energy production strategies for the future.</div></div>","PeriodicalId":100252,"journal":{"name":"Cleaner Energy Systems","volume":"10 ","pages":"Article 100167"},"PeriodicalIF":0.0,"publicationDate":"2024-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143133759","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Examining social-cultural norms affecting the adoption of solar energy technologies at the household level","authors":"Robert Muwanga,&nbsp;Irene Namugenyi,&nbsp;Benard Musekese Wabukala,&nbsp;Warren Tibesigwa,&nbsp;Patsy Vincent Katutsi","doi":"10.1016/j.cles.2024.100164","DOIUrl":"10.1016/j.cles.2024.100164","url":null,"abstract":"<div><div>The relevance of social culture in determining energy consumption behaviour is repeatedly highlighted, yet it is still unclear how social-cultural factors affect the uptake of solar energy technologies- SETs. The study highlights social-cultural norms as one of the aspects rarely considered for solar energy adoption and utilises the Energy Cultures Framework to examine the influence of such norms on the acceptance and usage of solar energy technologies SETs at the household level. The study comprised a cross-sectional survey of households from three urban districts in central Uganda (<em>n</em> = 439), and data was analysed using partial least squares structural equation modelling method. The results showed that moral and subjective norms positively and significantly influence the adoption of SETs. However, the influence of moral norms on adoption is relatively stronger than that of subjective norms on adoption. These findings imply that individual-level concerns and a sense of responsibility towards energy usage are more important than the collective societal behavioural requirement for SETs adoption. This study distinctively highlights the relevance of the different types of norms and offers valuable insights into households’ energy usage behaviour, which is essential for designing successful promotion campaigns for SETs and increasing the adoption and usage of more sustainable energy alternatives. Increased adoption of SETs is an important part in the development, implementation, and achievement of energy policy goals.</div></div>","PeriodicalId":100252,"journal":{"name":"Cleaner Energy Systems","volume":"9 ","pages":"Article 100164"},"PeriodicalIF":0.0,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142743835","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}