Sustainable Energy Technologies and Assessments最新文献

{"title":"Improved load-sharing strategy for multiple turbine generators of offshore oil and gas fields with offshore wind power","authors":"Jing Liu,&nbsp;Longfei Liu,&nbsp;Xiandong Xu,&nbsp;Hongjie Jia","doi":"10.1016/j.seta.2024.104092","DOIUrl":"10.1016/j.seta.2024.104092","url":null,"abstract":"<div><div>To reduce carbon emissions and energy costs, oil and gas operators are advancing the collaborative development of offshore wind power and offshore oil and gas fields. Yet, traditional load-sharing strategies, designed for stable generation-load dynamics, struggle to effectively handle power fluctuations and the contradiction between the improvement of wind power utilization and the hazards of low-load operation. An improved load-sharing strategy is proposed to support the integration of intermittent wind power into offshore platforms. Firstly, a load-sharing principle at equivalent load levels is integrated into both day-ahead scheduling and intra-day dispatch to reduce the impact of frequent and large-scale power fluctuations on a single generator. Then, to avoid turbine generators continuously being operated at low load levels, a dynamic management strategy is proposed to regulate the minimum load level of turbine generators within day-ahead scheduling, mitigating the adverse impact of the long period low-load level operation on turbine generators. The proposed strategy is tested using the data of a real-world oil and gas field in Northern China. The results show that the proposed strategy reduces operating costs by up to 6.3% in summer, 9.2% in midseason, and 4.6% in winter. Meanwhile, wind power curtailment and carbon emissions are significantly reduced.</div></div>","PeriodicalId":56019,"journal":{"name":"Sustainable Energy Technologies and Assessments","volume":"73 ","pages":"Article 104092"},"PeriodicalIF":7.1,"publicationDate":"2024-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142707226","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Development of an integrated model for environmentally and economically sustainable and smart cities","authors":"Azzam Abu-Rayash ,&nbsp;Ibrahim Dincer","doi":"10.1016/j.seta.2024.104096","DOIUrl":"10.1016/j.seta.2024.104096","url":null,"abstract":"<div><div>This research introduces a novel integrated approach for smart cities designed to enhance environmentally sustainable economies through innovations and socio-economic transitions. The model is uniquely and comprehensively developed to create a novel smart city index by integrating 32 performance indicators that notably transform the environment, economy, energy, social, governance and transportation dimensions. The present multidisciplinary conceptual model explores the intersection and cross-sectorial impacts in the quest to potentially achieve a smart city. The assessment methodology employs multi-criteria decision-making and principal component analysis to quantify results and visualize a helpful outcome. Geometric weighting schemes were also used to test the robustness of the model. The model is applied to 20 cities worldwide to determine the smart city index for each city. The smart city index is a composite index that considers smart health as a critical factor for humanity. The correlation between the society and economy indexes shows a significant positive exponential relationship. Enhancing the society index will result in potential economic growth for cities. The trend is supported by a relatively high degree of agreement.</div></div>","PeriodicalId":56019,"journal":{"name":"Sustainable Energy Technologies and Assessments","volume":"73 ","pages":"Article 104096"},"PeriodicalIF":7.1,"publicationDate":"2024-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142707227","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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":"Comparative life cycle assessment of micro water Turbines: Evaluating potential for remote power generation","authors":"Vipin Uniyal ,&nbsp;Ashish Karn ,&nbsp;Varun Pratap Singh","doi":"10.1016/j.seta.2024.104107","DOIUrl":"10.1016/j.seta.2024.104107","url":null,"abstract":"<div><div>The growing interest in sustainable energy solutions, coupled with recent technological advancements, has led to increased exploration of ultra-low-head hydropower systems. This study focuses on micro water turbines, particularly zero- to low-head turbines, for off-grid power production. The primary objective is to assess the operational dynamics, performance-influencing variables, and utility of three specific turbine types: the Archimedes screw turbine (AST), water wheels (WW), and zero-head (hydrokinetic) turbines (ZHT). This article rigorously compares the life cycle assessments of these turbines, with an emphasis on energy, economic, and environmental analyses. In the context of rapid technological advancements and increasing sustainability challenges, adopting turbine technologies with over two decades of service life and desired outputs has become critical. Users now place greater importance on economic, energy, and environmental factors when selecting micro-turbine technologies. This paper introduces a new Selection Index (SI) based on life cycle assessment (LCA) to aid in selecting and adopting micro-turbine technologies for long-term operations. The selection index values of AST, WW, and ZHT are 2.532, 2.371, and 2.324, respectively, demonstrating that AST outperforms the other two in terms of energy intensity, economic viability, and environmental sustainability for low-head, off-grid power generation.</div></div>","PeriodicalId":56019,"journal":{"name":"Sustainable Energy Technologies and Assessments","volume":"73 ","pages":"Article 104107"},"PeriodicalIF":7.1,"publicationDate":"2024-11-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142707217","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Multi-Criteria selection of Metals-based electrocatalysts for electrochemical ammonia synthesis","authors":"Seyed Taher Kermani Alghorayshi ,&nbsp;Zeynab Bavarsad ,&nbsp;Milad Imandoust ,&nbsp;Solmaz Abbasi ,&nbsp;Mehran Hadi Abedini Soodani ,&nbsp;Rahim Zahedi","doi":"10.1016/j.seta.2024.104104","DOIUrl":"10.1016/j.seta.2024.104104","url":null,"abstract":"<div><div>The present study employed the Analytic Hierarchy Process (AHP), a renowned method for multi-criteria decision-making, to prioritize electrocatalysts for ammonia synthesis. This process considered the merits and demerits of both noble and non-noble metals electrocatalysts. The evaluation of seven parameters, including economic, lifetime, yield, selectivity, Faradaic efficiency (FE) and potentiometry, determines the justification of alternatives. In addition, there are seven types of electrocatalysts obtained from noble metals electrocatalysts, including Au, Pt, Ru, Rh, Pd, Ir, and Ag, as well as transition metal oxide (TMO), transition metal nitride (TMN), transition metal carbide (TMCA), transition metal chalcogenide (TMc), and other transition metal-based compounds (OTMB), and single atoms (SAs), derived from non-noble metals electrocatalysts, were considered as viable alternatives in light of the objective. According to the results of the multi-criteria evaluation, the criteria of yield, economic value, and lifetime had global weights of 0.306, 0.231, and 0.172, respectively, indicating their significance. Moreover, based on the criteria, Ru with a global weight of 0.189 and non-nobel metals SAs with a global weight of 0.214 are considered the most favored electrocatalysts for ammonia synthesis compared to both noble and non-noble electrocatalysts. The decision-making process considers economic justification (price), reaction yield, lifetime, FE, selectivity and potential as essential criteria, respectively. Ultimately, by closely considering the outcomes of individual atoms, the problems encountered by each catalyst can be effectively addressed, leading to impressive performance.</div></div>","PeriodicalId":56019,"journal":{"name":"Sustainable Energy Technologies and Assessments","volume":"73 ","pages":"Article 104104"},"PeriodicalIF":7.1,"publicationDate":"2024-11-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142707224","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Power generation by utilization of different renewable energy sources in five Middle Eastern countries: Present status, opportunities and challenges","authors":"Azher M. Abed ,&nbsp;Mohammad Alhuyi Nazari ,&nbsp;Mohammad Hossein Ahmadi ,&nbsp;Azfarizal Mukhtar ,&nbsp;Ravinder Kumar ,&nbsp;Nima Gharib","doi":"10.1016/j.seta.2024.104101","DOIUrl":"10.1016/j.seta.2024.104101","url":null,"abstract":"<div><div>There is enormous potential in the Middle East region for power generation by employment of renewable energies, particularly solar. The purpose of this article is representation of the status of power generation by use of different renewable energy systems in some Middle Eastern countries and the challenges and opportunities related to the development of these systems. In this study, five resource-rich Middle Eastern countries including Iran, Saudi Arabia, Oman, Iraq and the United Arab Emirates (UAE) are considered to be analyzed in term of status of renewable energies for power generation. In this regard, the electricity generation status of these countries is focused. Furthermore, the policies and potentials of these countries are represented and discussed. Moreover, the challenges for development of renewable energy technologies for electricity development in these countries are represented and investigated. Among the considered countries for assessment of power generation by renewable energy sources, the UAE has the highest share of solar energy in generation of electricity. Moreover, there are ambitious plans and policies for clean electricity generation in Saudi Arabia and the UAE, while in Iran and Iraq the development of renewable energies for power generation is not very significant. The reasons that hinder development of renewable energy systems in these countries can be different. For example, war and political issues in Iraq and sanctions in Iran could be among the main reasons that hinder development of new energy systems based on renewable energy sources. It can be stated that despite the considerable potential in these countries for exploitation of renewable energy sources for power generation, utilization of these sources is limited. In this regard, promotion of social awareness, incrementing economic incentives and advanced planning are needed to accelerate the renewable energies development.</div></div>","PeriodicalId":56019,"journal":{"name":"Sustainable Energy Technologies and Assessments","volume":"73 ","pages":"Article 104101"},"PeriodicalIF":7.1,"publicationDate":"2024-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142707229","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Trends for the installation of heat pumps in the US residential buildings","authors":"Behzad Salimian Rizi,&nbsp;Jongki Lee,&nbsp;Mohammad Heidarinejad","doi":"10.1016/j.seta.2024.104080","DOIUrl":"10.1016/j.seta.2024.104080","url":null,"abstract":"<div><div>This paper quantifies recent trends in the installation and deployment of heat pumps in the U.S. residential buildings. To meet this quantification, this study characterizes the 2020 Residential Building Energy Survey (RECS) database in the U.S. and provides discussions on the potential technological advances that have occurred in recent years. Without a detailed review, the number of heat pumps in U.S. residential building stock in 2020 RECS is increased compared to 2015 RECS. The analysis provides a detailed distribution on the trends of heat pumps installed in the U.S. This paper also shows that the increase of heat pump from 2015 to 2020 is relatively low through our analyses. The paper concludes with a comprehensive discussion on the heat pump incentives in the U.S. and a few practical recommendations for the installation of heat pumps to ensure future electrification aspects are included in a holistic development of any decarbonization pathway. Finally, this study compares the heat pump installation in the U.S. with other countries. The results have implications for the future policies and technological advances needed to electrify residential buildings in the U.S. given the concerns over climate change.</div></div>","PeriodicalId":56019,"journal":{"name":"Sustainable Energy Technologies and Assessments","volume":"73 ","pages":"Article 104080"},"PeriodicalIF":7.1,"publicationDate":"2024-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142707222","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Re-establishing and Elucidating the right operation strategy foundation for combined heat and power systems","authors":"W.D. Chen ,&nbsp;Y.L. Shao ,&nbsp;D.T. Bui ,&nbsp;Z.F. Huang ,&nbsp;K.J. Chua","doi":"10.1016/j.seta.2024.104091","DOIUrl":"10.1016/j.seta.2024.104091","url":null,"abstract":"<div><div>The operational strategies of Following Thermal Load (FTL) and Following Electricity Load (FEL) are pivotal for combined heat and power systems (CHPs) across diverse research and application contexts. However, this study reveals a long-standing misapplication of the FEL/FTL strategy, leading to substantial global energy inefficiencies persisting for decades. Through rigorous mathematical deduction and counter-example analysis, this research highlights the inadequacies of the conventional FEL/FTL approach and advocates for its revision to enhance energy conservation. Subsequently, employing the corrected operational foundation, this study introduces comprehensive methodologies for deriving optimal strategy maps applicable to various CHPs. Considerations include prime mover type, power grid efficiency, and the minimization of wasted thermal energy. A case study demonstrates that our proposed methodology can result in a 12 % reduction in fuel consumption compared to conventional energy supply schemes. The redefined operational foundation for CHPs not only rectifies existing practices but also provides a correct reference for future research in this domain.</div></div>","PeriodicalId":56019,"journal":{"name":"Sustainable Energy Technologies and Assessments","volume":"73 ","pages":"Article 104091"},"PeriodicalIF":7.1,"publicationDate":"2024-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142707223","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Suitability matching evaluation of the low-carbon regional integrated energy system based on the “resource-demand” balance","authors":"Zhenyu Zhao,&nbsp;Kun Yang","doi":"10.1016/j.seta.2024.104099","DOIUrl":"10.1016/j.seta.2024.104099","url":null,"abstract":"<div><div>The integrated energy system (IES) stands out due to its advantages of multi-energy complementarity, green and efficiency. This paper aims to provide a practical model for suitable region site selection of low-carbon regional IES based on the “resource-demand” balance. A “resource-demand” suitability matching analysis indicator system is established. By using prospect theory and variable precision rough set theory, the decision-making preferences and the cognitive fuzziness influence of expert scoring were corrected respectively, and reasonable subjective weights were obtained. Then, the objective weights are obtained using the entropy method, and the optimal combined weights are obtained through the game theory weighting method. Finally, this paper establishes a “resource-demand” suitability matching model consisting of three sub models: similarity matching degree, numerical matching degree, and suitability matching degree. An empirical study is conducted on 16 regions in Beijing, and the results show that the numerical matching degree of “resource-demand” gradually decrease from the central urban regions to the surrounding regions. The similarity matching degree in most regions reaches the highest range (0.776,1.00). There are 4 regions with a suitability matching rating of perfect, 7 regions with a rating of great, 1 region with a rating of good, and 4 regions with a rating of poor. The suitability matching model established in this paper can guide energy project decision-makers to select regions with greater potential for the development of IES. In addition, adjusting the similarity matching coefficient and numerical matching coefficient can meet the diversified needs of decision-makers for the similarity matching degree and numerical matching degree of the “resource-demand” balance, providing support for energy project planning decisions.</div></div>","PeriodicalId":56019,"journal":{"name":"Sustainable Energy Technologies and Assessments","volume":"72 ","pages":"Article 104099"},"PeriodicalIF":7.1,"publicationDate":"2024-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142706502","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Biomass valorization: Comparative analysis of tea waste pellets and wood pellets for steam generation and emission profiles","authors":"Birkut Güler","doi":"10.1016/j.seta.2024.104103","DOIUrl":"10.1016/j.seta.2024.104103","url":null,"abstract":"<div><div>This study investigates the viability of tea waste as a biomass feedstock for pellet production and its combustion characteristics. Tea waste, an abundant agricultural byproduct, presents a promising avenue for renewable energy generation if effectively utilized. The pellets derived from tea waste were subjected to detailed analysis focusing on their calorific values and carbon composition. The calorific value of tea waste pellets was determined to be approximately 18.5 MJ/kg, comparable to conventional wood pellets. Notably, these pellets exhibit a high carbon content of 45 %, indicating a significant fixed carbon fraction that necessitates tailored combustion strategies for optimal efficiency. This research underscores the potential of tea waste pellets as a sustainable biofuel, contingent upon the development and application of precise combustion methodologies. It underscores the critical importance of understanding the chemical properties of solid biofuels in optimizing their utilization for energy production.</div></div>","PeriodicalId":56019,"journal":{"name":"Sustainable Energy Technologies and Assessments","volume":"72 ","pages":"Article 104103"},"PeriodicalIF":7.1,"publicationDate":"2024-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142706598","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Decoding outdoor thermal comfort: The role of location in urban canyon microclimate","authors":"V.P. Lopez-Cabeza ,&nbsp;M.J. Loor-Vera ,&nbsp;E. Diz-Mellado ,&nbsp;C. Rivera-Gomez ,&nbsp;C. Galan-Marin","doi":"10.1016/j.seta.2024.104095","DOIUrl":"10.1016/j.seta.2024.104095","url":null,"abstract":"<div><div>The Urban Heat Island (UHI) effect is a problem aggravated by climate change affecting many urban settings worldwide, with implications for thermal comfort, energy consumption and human health. The study of mitigation strategies is a field of interest for the research community. This study examines the impact of urban geometry and vegetation on creating microclimates in urban areas to improve thermal comfort and mitigate the UHI effect. The novelty is the cross-comparison of urban canyons in two cities with different latitudes and morphologies, Seville in Csa climate and 37°23′00″N latitude and Manta in BWh climate and 0°57′00″S latitude, to determine the most effective strategies for each location. The study uses ENVI-met to simulate 32 variations of typical urban canyon typologies. Results suggest that while air temperature shows minor fluctuations within the same city, thermal comfort differs significantly based on the geometry, orientation, and presence of vegetation. This difference is due to the variations in parameters that affect thermal comfort, such as relative humidity, solar radiation and wind speed. Vegetation improves thermal comfort in Seville while in Manta, where relative humidity is much higher, the addition of vegetation has a negative impact. Therefore, the recommended urban strategies for each city are different and should consider local climatological context and geographic location. The study highlights the need for tailored and context-specific urban design strategies to mitigate the impact of UHI in urban areas while addressing some general recommendations that can be considered in similar climates and urban contexts.</div></div>","PeriodicalId":56019,"journal":{"name":"Sustainable Energy Technologies and Assessments","volume":"72 ","pages":"Article 104095"},"PeriodicalIF":7.1,"publicationDate":"2024-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142706501","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}