Renewables: wind, water, and solar最新文献

{"title":"A systematic review and bibliometric analysis of electric cooking: evolution, emerging trends, and future research directions for sustainable development","authors":"Flavio Odoi-Yorke","doi":"10.1186/s40807-024-00119-x","DOIUrl":"https://doi.org/10.1186/s40807-024-00119-x","url":null,"abstract":"Many developing countries, particularly in Africa and Asia, still widely use traditional cooking methods that rely on solid fuels such as wood and charcoal. These inefficient and polluting cooking practices have severe health impacts due to household air pollution, and they contribute to environmental degradation through deforestation and black carbon emissions. This has driven growing interest in cleaner and more sustainable cooking alternatives such as electric cooking (e-cooking), improved biomass cookstoves, biogas systems, and modern fuel stoves that can reduce emissions and fuel consumption while providing a safer cooking experience. E-cooking has emerged as a promising option to traditional cooking methods due to sustainability, health benefits, energy efficiency, convenience, safety, and potential for grid integration, making it a promising alternative to traditional cooking methods. This study followed the PRISMA guidelines for systematic reviews to assess the existing literature on e-cooking from 1993 to 2023. In addition, the biblioshiny package in R software was used to perform bibliometric analysis to identify key trends and evolutions. The results indicate that the United Kingdom, the United States, Japan, Australia, and China are the top five countries leading in e-cooking research. The study identified promising areas for future research, such as optimising solar e-cookers using artificial intelligence techniques, integrating internet of things and automation technologies in e-cookers, integrating e-cooking appliances into smart grid systems, examining effective behavioural change interventions, and exploring innovative business models. The study findings highlight the need for interdisciplinary collaboration among researchers, engineers, social scientists, and policymakers to address the technical, economic, socio-cultural, and environmental factors influencing the transition to e-cooking.","PeriodicalId":93049,"journal":{"name":"Renewables: wind, water, and solar","volume":"8 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141502387","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":"Households’ preference and willingness to pay for alternative energy sources: a discrete choice experiment","authors":"Angela Boakye Afriyie, Eric Fosu Oteng-Abayie, Prince Boakye Frimpong, Kofi Amanor","doi":"10.1186/s40807-024-00117-z","DOIUrl":"https://doi.org/10.1186/s40807-024-00117-z","url":null,"abstract":"As consumers play an increasingly active role in the energy market, understanding their preferences for renewable and non-renewable energy is essential for achieving Sustainable Development Goal 7. This study employs a labelled discrete choice experiment to investigate consumers' preferences and willingness to pay for solar PV panels, power generators, and biomass, considering service provider, service quality, and purchasing price. The survey was administered to 250 households in Kumasi, Ghana. This study finds that solar PV panels are the most preferred energy source, with the highest willingness to pay estimate. However, in cases where solar panels are not easily accessible, households turn to biomass as an alternative. Although there are similarities in choices, variations in preferences among consumers were identified. Furthermore, consumers value product or service quality but remain indifferent between foreign and domestic service providers. Based on these findings, policymakers are advised to engage in awareness campaigns and provide incentives such as subsidies and low-interest loans, to drive solar PV panel adoption among households. Energy developers should consider customized payment plans based on income levels to facilitate affordability. Additionally, recognizing the heterogeneity in preferences necessitates an inclusive policy approach that considers diverse consumer needs and addresses the energy access challenges faced by low-income households.","PeriodicalId":93049,"journal":{"name":"Renewables: wind, water, and solar","volume":"39 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141502396","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":"Development of a portable small wind turbine for integration into a mobile cooling technology","authors":"Perm Mthethwa, Tilahun S. Workneh, Alaika Kassim","doi":"10.1186/s40807-024-00116-0","DOIUrl":"https://doi.org/10.1186/s40807-024-00116-0","url":null,"abstract":"In this study, a small wind turbine prototype was developed to provide electric power for a mobile cooling unit The aim of this study was to design and develop a 600-W small wind turbine that can generate electric energy to power a mobile cooling unit used for the storage of fruits and vegetables, mainly for the benefit of smallholder farmers. Smallholder farmers suffer from high postharvest losses, approximated at 50%, some of which can be avoided by using efficient low-cost cooling units, rather than open transport. Cooling slows down the metabolic rate which consequently extends the produce's shelf life and prevents spoilage, allowing farmers to provide high-quality produce to the market. This could potentially increase the farmers’ monetary returns. The study was conducted in KwaZulu-Natal on the road that stretches between Pietermaritzburg and Estcourt. The wind turbine is made of a 600-mm-diameter rotor with three PVC blades, a permanent magnet synchronous generator, a bridge rectifier, a 230-V AC inverter and a battery for energy storage. The wind turbine was tested against three vehicle speeds of 60, 80, and 100 km h−1, and the two opening levels, level 1 at 45 $$^circ$$ and level 2 at 80 $$^circ$$ relative to the louvre mechanism frame. The results of this study revealed that the power generated by the wind turbine is greatly influenced (p < 0.001) by both the vehicle travelling speed and louvre opening level. The power output of 113.4, 159.6 and 210.0 W per hour was observed for the vehicle speeds of 60, 80 and 100 km h−1, respectively, on louvre opening level 1. The power output of 142.8 W h−1, 268.8 W h−1 and 294.0 W h−1 were observed for a wind speed of 60 km h−1, 80 km h−1, and 100 km h−1, respectively, on Louvre opening level 2. This shows that higher wind speeds (vehicle speeds) produce high-power output which accounts for the small size of the wind turbine rotor. A maximum power coefficient of 0.49 was achieved for this study. The wind turbine can generate the power required to run a cooling technology to a limited extent, thus must have a backup power supply from the diesel engine or be used in a hybrid system.","PeriodicalId":93049,"journal":{"name":"Renewables: wind, water, and solar","volume":"26 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141502386","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":"Unveiling determinants of household lighting preferences in rural Tanzania: insights for sustainable energy access","authors":"Aurelia Ngirwa Kamuzora","doi":"10.1186/s40807-024-00112-4","DOIUrl":"https://doi.org/10.1186/s40807-024-00112-4","url":null,"abstract":"This paper investigates the determinants and prospects of household lighting choices in rural Tanzania using a Multinomial Logit Regression Model. The analysis is based on data from 4671 households, focusing on three lighting options: electricity, solar energy, and candle lighting. The results reveal significant factors influencing these choices, including household head characteristics, household size, marital status, education, employment status, number of rooms, and income. Key findings indicate that the age of the household head negatively influences the likelihood of choosing grid-electricity, while having a male head of household significantly reduces the probability of opting for any lighting option. Larger household size is negatively associated with choosing electricity and candle lighting. Marital status shows that married households are more likely to use candle lighting. Employment status positively impacts the likelihood of adopting all three lighting options, with employed household heads being more likely to choose modern lighting solutions. Income levels are crucial, as higher income significantly increases the probability of selecting electricity and candle lighting, but not solar energy. These findings provide valuable insights for policymakers and stakeholders aiming to enhance sustainable energy access in rural Tanzania. It highlights the importance of addressing socio-economic factors to promote the adoption of modern and sustainable lighting technologies.","PeriodicalId":93049,"journal":{"name":"Renewables: wind, water, and solar","volume":"26 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141259831","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":"Exploring the impact of aluminum oxide nanoparticles on waste transformer biodiesel blend under variable injection timing","authors":"A. Prabu","doi":"10.1186/s40807-024-00114-2","DOIUrl":"https://doi.org/10.1186/s40807-024-00114-2","url":null,"abstract":"This study investigated the use of nano-blended biodiesel, made by mixing waste transformer biodiesel with nanoscale aluminum oxide particles. A fuel blend ratio containing both diesel and biodiesel components was created with 100 parts per million of alumina nanoparticles. All tests were conducted at various loads in an engine, using diesel, biodiesel, and nano-blended biodiesel fuel. The outcomes demonstrated that adding nanoparticles improved engine thermal efficiency and reduced emissions, especially at higher fuel injection timings. The greatest increase in brake thermal efficiency, 6% higher than diesel mode, was achieved with a nano-blended biodiesel formulation containing 100 ppm of aluminum oxide, at a fuel injection timing of 27 before top dead center under full load conditions. With a constant nanoparticle-blended biodiesel content and fuel injection timing of 27 before top dead center, reductions of 1.5% in smoke, 33% in hydrocarbon, and 8% in carbon monoxide emissions were observed, with a 9.7% increase in NO emissions.","PeriodicalId":93049,"journal":{"name":"Renewables: wind, water, and solar","volume":"51 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141197808","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":"Advances in solar pond technology and prospects of efficiency improvement methods","authors":"Onyedika V. Mbelu, Adekanmi M. Adeyinka, Daniel I. Yahya, Yaqub B. Adediji, Howard Njoku","doi":"10.1186/s40807-024-00111-5","DOIUrl":"https://doi.org/10.1186/s40807-024-00111-5","url":null,"abstract":"The rising global energy demand necessitates innovative solutions for harnessing renewable energy sources. Solar ponds have received attention as they present a viable means to address this challenge by absorbing and storing solar radiation. This article provides a comprehensive review of solar pond technology, including its principles, applications, heat extraction mechanisms, and approaches to optimize performance, with special attention to the salt-gradient solar pond. Additionally, the article identifies challenges that currently hinder the large-scale adoption of solar pond technology and offers recommendations for future research. By providing a detailed analysis of the current trends and future research directions, this paper seeks to contribute to the ongoing efforts to improve these systems, exploring various approaches to increase their efficiency and make them more economical and environmentally sustainable.","PeriodicalId":93049,"journal":{"name":"Renewables: wind, water, and solar","volume":"123 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141198145","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":"Harnessing the power of wind: a comprehensive analysis of wind energy potential in Dhaka city","authors":"Mohammad Liton Hossain, S. M. Nasif Shams, Saeed Mahmud Ullah","doi":"10.1186/s40807-024-00106-2","DOIUrl":"https://doi.org/10.1186/s40807-024-00106-2","url":null,"abstract":"This study gives a thorough analysis on the wind energy potential in Dhaka, Bangladesh, utilizing data from NASA Power's remote sensing tools and weather data from the Bangladesh Meteorological Department (BMD). The wind speed data collected over a 22 year period at an altitude of 10 m. The results indicate that 3.07 m per second (ms−1) is Dhaka city's typical wind speed, while the maximum wind speeds were recorded in June and July. A Weibull distribution is used to observe the wind data, as well as to calculate the Weibull form parameter of 2.65 and the scale parameter of 3.43 ms−1. Based on these parameters, the most probable wind speed along with the wind speed carrying maximum energy were calculated 2.83 ms−1 and 4.28 ms−1, respectively. The highest density of energy has been found in the month of July with a value of 52.11 W/m2. According to the study, the south is the most prominent wind direction for Dhaka city. Moreover, the study analyzes the relations between energy density and other variables, like wind speed, humidity, dry bulb temperature, etc. Positive correlations between energy density, wind speed, and dry bulb temperature imply that the higher wind speeds and dry bulb temperatures result in greater energies. The study's conclusions offer intuitive information about Dhaka City's potential for wind energy and can support direct future efforts to pursue this green resource in alignment with the Sustainable Development Goals (SDGs) of Bangladesh.","PeriodicalId":93049,"journal":{"name":"Renewables: wind, water, and solar","volume":"62 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140832659","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":"Combatting energy poverty in eastern Turkey: innovative debt solutions and the power-cut index","authors":"Tamer Emre, Adnan Sözen","doi":"10.1186/s40807-023-00095-8","DOIUrl":"https://doi.org/10.1186/s40807-023-00095-8","url":null,"abstract":"Energy poverty (EP), a pressing global concern, is uniquely manifested in regions like eastern Turkey due to intertwined socio-economic conditions and intricate energy consumption patterns. This study critically examines the electricity market dynamics, highlighting the direct impact on end-users, from households to entire communities facing challenges such as unauthorized consumption and waste. Our findings over 2 years period of 6 million customer invoices through 17 cities of 5 distribution companies underscore the limitations of traditional income-based measures in capturing the nuances of EP. In response, we introduce a novel metric—the power-cut index per consumer (PCPC)—spotlighting the prevalence of power interruptions due to non-payment as an actionable intervention metric. To address EP’s challenges, we present a mechanism encouraging consumers to reduce consumption, offering debt discounts as incentives. Our methodological approach, harnessing both the Monte Carlo simulation and optimization, promises flexible, actionable strategies tailored to diverse EP situations. Drawing parallels with the European Union’s energy transition efforts, this study proposes the adaptation of European frameworks to cater to Turkey’s unique landscape. By anchoring our insights in real stories of those affected by EP, we highlight the human dimension, emphasizing the urgency of stakeholder collaboration to ensure a future where energy facilitates prosperity rather than hindrance. The collective endeavors of infrastructure companies, governmental agencies, NGOs, and the public are pivotal in sculpting a brighter, equitable energy future. ","PeriodicalId":93049,"journal":{"name":"Renewables: wind, water, and solar","volume":"84 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140832657","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":"Assessment of the locational potential of floating offshore wind energy in South Africa","authors":"Kubiat Umoh, Abbas Hasan, Amangeldi Kenjegaliev, Ayman Al-Qattan","doi":"10.1186/s40807-024-00104-4","DOIUrl":"https://doi.org/10.1186/s40807-024-00104-4","url":null,"abstract":"Expanding floating wind into new markets could support emission reduction targets in several national contexts. It furthers the need for adequate assessments to gain a full understanding of the technology’s potential in future markets. South Africa is a prime case study as it has seen limited industry and policy developments despite its huge technical potential for floating offshore wind (FOW). This paper assessed the locational potential of floating wind in South Africa through a three-phased approach that evaluated the key technical drivers/barriers of the technology, conducted a Geographic Information System analysis (GIS) using ArcMap 10.8 to exclude unsuitable sites based on a predetermined exclusion criteria (including marine protected zones, underwater cables, major oil and gas deposits, etc.), and estimated the total harvestable capacity in the feasible sites. The study found that 2% (246,105.4 km2) of South Africa’s entire Exclusive Economic Zone (EEZ) is suitable for hosting floating wind turbines, with a potential to generate a maximum of 142.61 GW of floating wind power. Although the Western Cape province holds the highest potential (80.52 GW) for floating wind in the country, the Eastern Cape region, with a locational potential of 20.04 GW, is considered most suitable for early-stage developments due to the availability of grid connection points, limited marine traffic, and proximity to appropriate port facilities. Future work can conduct techno-economic assessments to evaluate the technical and economic implications of developing floating wind in distinct sites in the country’s EEZ.","PeriodicalId":93049,"journal":{"name":"Renewables: wind, water, and solar","volume":"41 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140576739","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 the role of subsistence renewables in alleviating power poverty within Nigeria’s energy-mix strategy","authors":"David Oluseun Olayungbo, Ayodele Adekunle Faiyetole, Adenike Anike Olayungbo","doi":"10.1186/s40807-024-00105-3","DOIUrl":"https://doi.org/10.1186/s40807-024-00105-3","url":null,"abstract":"Nigeria, a country rich in renewable sources still heavily relies on nonrenewable energy, of which the government’s on-grid supply remains inadequate, and generally of poor services. This study, therefore, investigated subsistence renewables by citizens able to contribute to the country’s energy-mix plan and help ameliorate power poverty challenges. Qualitative primary data were sourced using the Delphi experts’ method from energy experts and practitioners possessing relevant knowledge bases regarding the energy-mix strategy with an understanding of the power poverty scenarios. The findings show that the effect size in the very high-level option for solar potentials was relatively more than wind and bio sources. The study reveals that citizens could mostly afford low-capacity solar installations, with considerable interest in the energy-mix strategy. Medium-capacity solar was found to be quite unaffordable, leading to a perceptually very low potential for solar. A showstopper in incorporating solar effectively into Nigeria’s energy-mix scenario was the citizens’ non-affordability of accessing high-capacity systems. It is, however, deduced that affordability and recognition of values are congruous. Conclusively, the experts are optimistic regarding subsistence renewables potentials in the energy-mix strategy. Solar is, however, considered the most crucial, surpassing wind and bio sources. The study suggests that the government could incentivize renewable energy systems, particularly solar, to promote subsistence solutions through affordability by citizens, adoption, and sustainability within the energy-mix strategy. It is further recommended that citizens’ income levels should be raised to favor the affordability of off-grid renewable energy systems.","PeriodicalId":93049,"journal":{"name":"Renewables: wind, water, and solar","volume":"4 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140576520","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}