Energies最新文献_第7页

The Role of the Energy Sector in Contributing to Sustainability Development Goals: A Text Mining Analysis of Literature 能源部门在促进可持续发展目标方面的作用：文献文本挖掘分析

IF 3.2 4区工程技术

Energies Pub Date : 2023-12-30 DOI: 10.3390/en17010208

L. Carvalho, Márcia R. C. Santos

引用次数: 0

The Potential of Green Hydrogen and Power-to-X Utilization in Jordanian Industries: Opportunities and Future Prospects 约旦工业利用绿色氢能和 "电转X "技术的潜力：机遇与前景

IF 3.2 4区工程技术

Energies Pub Date : 2023-12-30 DOI: 10.3390/en17010213

H. Muhsen, Mohammed Al-Mahmodi, Rashed Tarawneh, Asma Alkhraibat, A. Al-Halhouli

{"title":"The Potential of Green Hydrogen and Power-to-X Utilization in Jordanian Industries: Opportunities and Future Prospects","authors":"H. Muhsen, Mohammed Al-Mahmodi, Rashed Tarawneh, Asma Alkhraibat, A. Al-Halhouli","doi":"10.3390/en17010213","DOIUrl":"https://doi.org/10.3390/en17010213","url":null,"abstract":"Green hydrogen and power-to-X technologies hold significant potential in the global energy transition towards net-zero emissions. This is attributed to the premise that these technologies can decarbonize numerous sectors worldwide by providing versatile and sustainable energy carriers and industrial feedstocks to replace fossil-based fuels and chemicals. To this end, the qualitative benefits of green hydrogen and power-to-X technologies have been thoroughly examined for various applications in past years. In contrast, quantifying the potential penetration of such technologies on national and global levels still requires extensive research. Therefore, this paper investigates the prospective integration of green hydrogen and power-to-X technologies within Jordanian industries, considering their quantitative utilization potential for current and future capacities. The findings showed that the Jordanian food processing and heavy industries emerged as major sectors with substantial potential for incorporating green hydrogen and power-to-X products as alternative fuels or chemical feedstocks. In detail, the total potential utilization capacity for these sectors stood at around 57 thousand tons per year. Specifically, fertilizers production, cement industry, steel reforming, and oil refinery possess an annual potential capacity of around 6.8, 11.8, 12.7, and 25.8 thousand tons, respectively. It is also worth mentioning that the current utilization capacity of hydrogen in Jordanian industries was found to be around 8.9 thousand tons per annum, which is completely covered by fossil-based hydrogen to date. These results imply that there will be a promising market for green hydrogen and power-to-X utilization in Jordanian industries, which will play a significant role in integrated energy transition efforts in the future.","PeriodicalId":11557,"journal":{"name":"Energies","volume":" 4","pages":""},"PeriodicalIF":3.2,"publicationDate":"2023-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139139721","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Experimental Study on Mechanical and Thermal Properties of Backfill Body with Paraffin Added 添加石蜡的回填体机械和热性能实验研究

IF 3.2 4区工程技术

Energies Pub Date : 2023-12-30 DOI: 10.3390/en17010217

Xiao-yan Zhang, Ziyi Han, Lang Liu, Xiang Xia, Qingjiang Liu, Yiran Duan, Xuan Wang

{"title":"Experimental Study on Mechanical and Thermal Properties of Backfill Body with Paraffin Added","authors":"Xiao-yan Zhang, Ziyi Han, Lang Liu, Xiang Xia, Qingjiang Liu, Yiran Duan, Xuan Wang","doi":"10.3390/en17010217","DOIUrl":"https://doi.org/10.3390/en17010217","url":null,"abstract":"Based on phase-change heat storage backfill, paraffin microcapsules were selected as the phase change material and were directly mixed with backfill materials for preparing backfill specimens. The mechanical and thermal properties of specimens with different paraffin percentages and slurry concentrations were tested and analyzed. The results show that compressive strength gradually decreases with an increasing paraffin percentage while it significantly increases with increasing slurry concentration, thermal conductivity decreases with increasing paraffin percentage and specific heat capacity increases with an increasing paraffin percentage and slurry concentration. For a paraffin percentage from 0% to 10%, compressive strength decreases by an average of 22.5%, thermal conductivity decreases by an average of 43.8% and specific heat capacity increases by an average of 8.7% at a phase-change temperature of 30 °C. For a slurry concentration from 68% to 72%, compressive strength increases by an average of 4.12 times, and specific heat capacity increases by an average of 3.5% at a phase-change temperature of 30 °C. The weakening effect of phase-change materials on compressive strength can be effectively improved by the increase of slurry concentration, and the increases of paraffin percentage and slurry concentration can both improve the sensible heat storage capacity of backfill materials.","PeriodicalId":11557,"journal":{"name":"Energies","volume":" 2","pages":""},"PeriodicalIF":3.2,"publicationDate":"2023-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139140954","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Management of Household-Generated Construction and Demolition Waste: Circularity Principles and the Attitude of Latvian Residents 家庭产生的建筑和拆除垃圾的管理：循环原则与拉脱维亚居民的态度

IF 3.2 4区工程技术

Energies Pub Date : 2023-12-30 DOI: 10.3390/en17010205

Inese Mavlutova, D. Atstāja, Sandra Gusta, J. Hermanis

{"title":"Management of Household-Generated Construction and Demolition Waste: Circularity Principles and the Attitude of Latvian Residents","authors":"Inese Mavlutova, D. Atstāja, Sandra Gusta, J. Hermanis","doi":"10.3390/en17010205","DOIUrl":"https://doi.org/10.3390/en17010205","url":null,"abstract":"This study aims to investigate to what extent the construction and demolition waste generated by households is managed by the principles of circularity and to identify the main influencing factors in the behavior of households regarding the circularity-based management of construction waste in Latvia. The current research presents principles of circularity of household-generated waste based on a systematic literature review, and the data obtained from a survey were analyzed using both descriptive and inferential statistics. This study clarifies the circular economy rationale for construction and demolition waste (CDW) management in Latvia and proposes further development to promote the achievement of sustainable development goals and increased energy efficiency. The results reveal that the observance of circular economy principles in construction and demolition waste management among Latvian households does not correspond to good circular economy practices due to attitudes toward environmental issues, expenses, and logistics; thus, compliance with these principles and legislation as well as closer cooperation between municipalities and households can promote significant economic benefits.","PeriodicalId":11557,"journal":{"name":"Energies","volume":" 81","pages":""},"PeriodicalIF":3.2,"publicationDate":"2023-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139137866","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Storage Sites for Carbon Dioxide in the North Sea and Their Particular Characteristics 北海二氧化碳储存地及其特点

IF 3.2 4区工程技术

Energies Pub Date : 2023-12-30 DOI: 10.3390/en17010211

Sean P. Rigby, Ali Alsayah

引用次数: 0

Experimental and Numerical Study of Novel Vortex Bladeless Wind Turbine with an Economic Feasibility Analysis and Investigation of Environmental Benefits 新型涡流无叶风力涡轮机的实验和数值研究、经济可行性分析和环境效益调查

IF 3.2 4区工程技术

Energies Pub Date : 2023-12-30 DOI: 10.3390/en17010214

Hasan Hamdan, S. Dol, Abdelrahman Hosny Gomaa, Aghyad B. Al Tahhan, Ahmad Al Ramahi, Haya Fares Turkmani, M. Alkhedher, R. Ajaj

{"title":"Experimental and Numerical Study of Novel Vortex Bladeless Wind Turbine with an Economic Feasibility Analysis and Investigation of Environmental Benefits","authors":"Hasan Hamdan, S. Dol, Abdelrahman Hosny Gomaa, Aghyad B. Al Tahhan, Ahmad Al Ramahi, Haya Fares Turkmani, M. Alkhedher, R. Ajaj","doi":"10.3390/en17010214","DOIUrl":"https://doi.org/10.3390/en17010214","url":null,"abstract":"This study combines experimental and numerical evaluations of Vortex Bladeless Wind Turbines (VBWTs) to understand their potential in renewable energy generation. The methodology employs Two-Way Fluid–Solid Interface (FSI) simulations, alongside real-world data, providing important insights into the turbine’s vibration dynamics and flow interactions during operation. Key findings include identifying optimal vibration frequencies and amplitudes that enhance energy harvesting and a clear advantage in power-generation estimations shown by one of the models used. The study reveals possible applications of VBWT in various settings like airport runways, highways, and buildings, indicating a promising avenue for incorporating such renewable-energy solutions. Discussions on the economic feasibility and environmental benefits of VBWT deployment are also presented, suggesting a need for further research and optimization in this area. A conceptual generator design and business model are introduced as part of a broader discussion on technology integration and energy storage. The research in this study encompasses experimental and numerical analysis, to achieve a broader understanding of the workings of a VBWT, realizing the feasibility of using such systems in lower-wind-speed conditions and upscaling to higher-wind-speed cases.","PeriodicalId":11557,"journal":{"name":"Energies","volume":" 17","pages":""},"PeriodicalIF":3.2,"publicationDate":"2023-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139138790","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Off-Gassing and Oxygen Depletion in Headspaces of Solid Biofuels Produced from Forest Residue Biomass 利用林渣生物质生产的固体生物燃料顶层空间的废气和氧气损耗

IF 3.2 4区工程技术

Energies Pub Date : 2023-12-30 DOI: 10.3390/en17010216

K. Warmiński, Klaudia Anna Jankowska, A. Bęś, M. Stolarski

{"title":"Off-Gassing and Oxygen Depletion in Headspaces of Solid Biofuels Produced from Forest Residue Biomass","authors":"K. Warmiński, Klaudia Anna Jankowska, A. Bęś, M. Stolarski","doi":"10.3390/en17010216","DOIUrl":"https://doi.org/10.3390/en17010216","url":null,"abstract":"As living standards improve worldwide, the demand for energy increases. However, climate changes and decreasing fossil fuel deposits have increased interest in renewable energy sources, including pellets produced from forest residues. This study aimed to compare changes in concentration of gases (CO, CO2, O2, volatile organic compounds—VOCs) in enclosed headspaces above pellets produced from deciduous (oak OA, birch BI) and coniferous (pine PI, spruce SP) dendromass and selected types of commercial pellets during their storage. The experiment measured the concentration of gas released from the pellets in storage daily for 14 days. The highest mean CO concentration was found for PI pellets (1194 ppm), and the lowest was for OA (63.3 ppm). Likewise, the highest CO2 concentration was noted for PI pellets (4650 ppm), and the lowest was for BI (1279 ppm). The largest VOC amount was released in the headspace above PI (88.8 ppm), and the smallest was above BI (4.6 ppm). The oxygen concentration was the lowest as measured for PI (minimum 16.1% v/v) and for SP (19.3% v/v). The threshold limit value (8 h) for CO was exceeded for all the pellets under analysis and, in the case of CO2, only for PI after day 10 of incubation. The study findings are extremely important from a scientific (but mainly from a practical) perspective because of the safety of storing and transporting wood pellets. The knowledge of autooxidation processes in those biofuels can help organize their logistics and storage and result in proper warehouse ventilation and monitoring of noxious gases.","PeriodicalId":11557,"journal":{"name":"Energies","volume":" 42","pages":""},"PeriodicalIF":3.2,"publicationDate":"2023-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139137510","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Energy Harvesting Opportunities in Geoenvironmental Engineering 地质环境工程中的能量收集机遇

IF 3.2 4区工程技术

Energies Pub Date : 2023-12-30 DOI: 10.3390/en17010215

L. Marchiori, Maria Vitoria Morais, André Studart, António Albuquerque, Luis Andrade Pais, Luis Ferreira Gomes, V. Cavaleiro

{"title":"Energy Harvesting Opportunities in Geoenvironmental Engineering","authors":"L. Marchiori, Maria Vitoria Morais, André Studart, António Albuquerque, Luis Andrade Pais, Luis Ferreira Gomes, V. Cavaleiro","doi":"10.3390/en17010215","DOIUrl":"https://doi.org/10.3390/en17010215","url":null,"abstract":"Geoenvironmental engineering involves defining solutions for complex problems, such as containment systems management, contaminant transport control, wastewater management, remediation of contaminated sites and valorization of geomaterials and wastes. In the last years, energy harvesting (EH)—or energy scavenging—methods and technologies have been developed to reduce the dependence on traditional energy sources, namely fossil fuels, and nuclear power, also responding to the increase in energy demands for human activities and to fulfill sustainable development goals. EH in geoenvironmental works and the surrounding soil and water environment includes a set of processes for capturing and accumulating energy from several sources considered wasted or unusable associated with soil dynamics; the stress and strain of geomaterials, hydraulic, vibrations, biochemical, light, heating and wind sources can be potential EH systems. Therefore, this work presents a review of the literature and critical analysis on the main opportunities for EH capturing, accumulating and use in geoenvironmental works, among basic electric concepts and mechanisms, analyzing these works in complex conditions involving biological-, chemical-, mechanical-, hydraulic- and thermal-coupled actions, concluding with the main investigation and challenges within geoenvironmental aspects for EH purposes.","PeriodicalId":11557,"journal":{"name":"Energies","volume":" 54","pages":""},"PeriodicalIF":3.2,"publicationDate":"2023-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139137959","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Microgrid Protection Coordination Considering Clustering and Metaheuristic Optimization 考虑聚类和元优化的微电网保护协调

IF 3.2 4区工程技术

Energies Pub Date : 2023-12-30 DOI: 10.3390/en17010210

Javier E. Santos-Ramos, Sergio D. Saldarriaga-Zuluaga, J. López-Lezama, N. Muñoz-Galeano, W. M. Villa-Acevedo

{"title":"Microgrid Protection Coordination Considering Clustering and Metaheuristic Optimization","authors":"Javier E. Santos-Ramos, Sergio D. Saldarriaga-Zuluaga, J. López-Lezama, N. Muñoz-Galeano, W. M. Villa-Acevedo","doi":"10.3390/en17010210","DOIUrl":"https://doi.org/10.3390/en17010210","url":null,"abstract":"This paper addresses the protection coordination problem of microgrids combining unsupervised learning techniques, metaheuristic optimization and non-standard characteristics of directional over-current relays (DOCRs). Microgrids may operate under different topologies or operative scenarios. In this case, clustering techniques such as K-means, balanced iterative reducing and clustering using hierarchies (BIRCH), Gaussian mixture, and hierarchical clustering were implemented to classify the operational scenarios of the microgrid. Such scenarios were previously defined according to the type of generation in operation and the topology of the network. Then, four metaheuristic techniques, namely, Genetic Algorithm (GA), Particle Swarm Optimization (PSO), Invasive Weed Optimization (IWO), and Artificial Bee Colony (ABC) were used to solve the coordination problem of every cluster of operative scenarios. Furthermore, non-standard characteristics of DOCRs were also used. The number of clusters was limited to the maximum number of setting setting groups within commercial DOCRs. In the optimization model, each relay is evaluated based on three optimization variables, namely: time multiplier setting (TMS), the upper limit of the plug setting multiplier (PSM), and the standard characteristic curve (SCC). The effectiveness of the proposed approach is demonstrated through various tests conducted on a benchmark test microgrid.","PeriodicalId":11557,"journal":{"name":"Energies","volume":" 39","pages":""},"PeriodicalIF":3.2,"publicationDate":"2023-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139141640","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Prediction of Mean Heat Transfer Characteristics of Multiple Impinging Jets with Steady RANS Simulation Using a Coarse Mesh 通过使用粗网格的稳定 RANS 仿真预测多重撞击射流的平均传热特性

IF 3.2 4区工程技术

Energies Pub Date : 2023-12-29 DOI: 10.3390/en17010196

M. Draksler, M. Tekavčič

引用次数: 0