MATEC Web of Conferences最新文献_第5页

Study on the sealing test method of hydraulic solenoid valve in nuclear power station 核电站液压电磁阀密封试验方法研究

MATEC Web of Conferences Pub Date : 2023-01-01 DOI: 10.1051/matecconf/202338201001

Haibao Wang, Xudong Tan, Qunxiong Xiao, Xincai Chang

引用次数: 0

Research on seismic behavior of prefabricated building joints in China 中国装配式建筑节点抗震性能研究

MATEC Web of Conferences Pub Date : 2023-01-01 DOI: 10.1051/matecconf/202338001004

H. Zhang

引用次数: 0

Study of pathways to reduce the energy consumption of the CO2 capture process by absorption-regeneration 通过吸收-再生降低CO2捕集过程能耗的途径研究

MATEC Web of Conferences Pub Date : 2023-01-01 DOI: 10.1051/matecconf/202337904002

L. Dubois, A. Costa, G. De Weireld, Diane Thomas

{"title":"Study of pathways to reduce the energy consumption of the CO2 capture process by absorption-regeneration","authors":"L. Dubois, A. Costa, G. De Weireld, Diane Thomas","doi":"10.1051/matecconf/202337904002","DOIUrl":"https://doi.org/10.1051/matecconf/202337904002","url":null,"abstract":"Several industrial sectors, such as for example cement manufacturers and lime producers, produce so-called “unavoidable” CO2 emissions because these ones are intrinsically linked to the industrial process itself (decarbonation of calcium carbonate). In order to reduce these emissions, it is necessary to implement a Carbon Capture, Utilization and/or Storage (CCUS) process chain, whose step of capture, although already technologically mature (especially the absorption-regeneration process using amine(s)-based solvents), leads to very high energy consumption. Three pathways to reduce this consumption have been investigated (experimentally and/or through the development of Aspen PlusTM simulations), namely: (i) upstream of the process thanks to the increase of the flue gas CO2 content (by partial oxy-combustion and/or flue gas recirculation), (ii) within the process (using more efficient and innovative mixtures of solvents such as demixing solutions), and (iii) at the configurational level by using advanced configurations in the capture process. It emerged that the use of a demixing process such as the mixture composed of diethylethanolamine (DEEA) and methylamino-propylamine (MAPA), or the implementation of an advanced process configuration (InterCooling Absorber + Rich Vapor Compression + Rich Solvent Splitting and Preheating, with methyldiethanolamine (MDEA) + piperazine (PZ) as a solvent) are the most energy reducing pathways for the absorption-regeneration process, i.e. more than 40% in comparison with a conventional process using monoethanolamine (MEA). Moreover, from an economical point of view, and compared to a basic configuration with MEA, the demixing technology has the advantage of being able to achieve such energy performance with a more limited investment (CAPEX) (+1.6%) than with advanced process configurations (+8.8%).","PeriodicalId":18309,"journal":{"name":"MATEC Web of Conferences","volume":"70 12","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72371478","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}

引用次数: 0

Defect Detection of Aluminum Profiles based on Improved Feature Pyramids 基于改进特征金字塔的铝型材缺陷检测

MATEC Web of Conferences Pub Date : 2023-01-01 DOI: 10.1051/matecconf/202338001016

Jie Wang, Yan Zhang, Feng Pan, Lin Wang

引用次数: 0

Design and comparative analysis of grid-connected BIPV system with monocrystalline silicon and polycrystalline silicon in Kandahar climate 坎大哈气候条件下单晶硅和多晶硅BIPV并网系统设计与比较分析

MATEC Web of Conferences Pub Date : 2023-01-01 DOI: 10.1051/matecconf/202337403002

Ahmad Shah Irshad

{"title":"Design and comparative analysis of grid-connected BIPV system with monocrystalline silicon and polycrystalline silicon in Kandahar climate","authors":"Ahmad Shah Irshad","doi":"10.1051/matecconf/202337403002","DOIUrl":"https://doi.org/10.1051/matecconf/202337403002","url":null,"abstract":"Building integrated photovoltaic (BIPV) system is a new and modern technique for solar energy production in Kandahar. Due to its location, Kandahar has abundant sources of solar energy. People use both monocrystalline and polycrystalline silicon solar PV modules for the grid-connected solar PV system, and they don’t know that which technology performs better for BIPV system. This paper analysis the parameters, described by IEC61724 “Photovoltaic System Performance Monitoring Guidelines for Measurement, Data Exchange and Analysis” to evaluate which technology shows better performance for the BIPV system. The monocrystalline silicon BIPV system has a 3.1% higher array yield than the polycrystalline silicon BIPV system. The final yield is 0.2% somewhat higher for monocrystalline silicon than polycrystalline silicon. Monocrystalline silicon has 0.2% and 4.5% greater yearly yield factor and capacity factors than polycrystalline silicon respectively. Monocrystalline silicon shows 0.3% better performance than polycrystalline silicon. With 1.7% reduction and 0.4% addition in collection losses and useful energy produced respectively, monocrystalline silicon solar PV system shows good performance than polycrystalline silicon solar PV system. But system losses are the same for both technologies. The monocrystalline silicon BIPV system injects 0.2% more energy to the grid than the polycrystalline silicon BIPV system.","PeriodicalId":18309,"journal":{"name":"MATEC Web of Conferences","volume":"27 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79232485","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}

引用次数: 1

Structural performance of reinforced concrete beams with self-healing cover zone 带自愈保护层的钢筋混凝土梁的结构性能

MATEC Web of Conferences Pub Date : 2023-01-01 DOI: 10.1051/matecconf/202337808004

Shanlin He, M. Luković, H. Jonkers, E. Schlangen

{"title":"Structural performance of reinforced concrete beams with self-healing cover zone","authors":"Shanlin He, M. Luković, H. Jonkers, E. Schlangen","doi":"10.1051/matecconf/202337808004","DOIUrl":"https://doi.org/10.1051/matecconf/202337808004","url":null,"abstract":"In the current study, experiments were carried out to investigate the structural performance of reinforced concrete (RC) beams with a self-healing cover zone. The cover zone consists of a 1.5-cm-thick layer of bacteria-embedded strain hardening cementitious composite (SHCC) for a combination of crack width control and crack healing. The aim is to bring together two emerging technologies (i.e., self-healing and strain-hardening) that show great potential for realizing highly efficient concrete structures. RC beam without the self-healing cover was also prepared as the control specimen for comparison purposes. The experimental program includes loading the beams to failure in four-point bending configuration and sawing the beams to segments for crack pattern analysis and crack healing. Results show that the beams with selfhealing cover exhibited a 45-60% improvement in structural capacity. The crack patterns of the hybrid beams were also largely modified. While the reference beam formed only a few major cracks, the hybrid beams formed around 40 fine cracks in the constant bending moment region with an average crack width smaller than 0.2 mm even at maximum load. By having an improved cracking behavior and an enhanced self-healing capacity, it is expected that the beams with a self-healing cover will possess an extended service life at the expense of minimal additional cost.","PeriodicalId":18309,"journal":{"name":"MATEC Web of Conferences","volume":"18 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84349957","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}

引用次数: 0

Lessons learned from the EC MSCA ITN Project SMARTINCS: Smart, Multi-functional, Advanced Repair Technologies In Cementitious Systems 欧盟MSCA ITN项目SMARTINCS的经验教训:水泥系统中的智能、多功能、先进修复技术

MATEC Web of Conferences Pub Date : 2023-01-01 DOI: 10.1051/matecconf/202337801001

N. De Belie, Tim Van Mullem

{"title":"Lessons learned from the EC MSCA ITN Project SMARTINCS: Smart, Multi-functional, Advanced Repair Technologies In Cementitious Systems","authors":"N. De Belie, Tim Van Mullem","doi":"10.1051/matecconf/202337801001","DOIUrl":"https://doi.org/10.1051/matecconf/202337801001","url":null,"abstract":"Extended abstract. To avoid the negative effects of concrete cracking on the durability of our buildings and infrastructure, different approaches to provide concrete with self-healing properties have been designed over the last decades. Self-healing concrete should allow to guarantee the performance of a structure over its service life, preventing costly intensive repair and maintenance operations. By combined experimental research and coupled multiscale models, SMARTINCS moves beyond the state-of-the-art with respect to (1) the efficiency of self-healing concrete, at acceptable cost for real-scale applications; (2) the multi-functionality (corrosion inhibition, self-sensing) of the self-healing solutions; and (3) the technologies for local application of healing agents in high risk zones or in high value grouts and repair products. The developments of SMARTINCS will help society to build and renovate in a resource efficient way and will accelerate the shift to sustainable and smart mobility, thereby contributing to the European Green Deal. The scientific work is clustered in three Work Packages (WP): (1) Improved self-healing concrete, (2) Advanced local (self-) repair, and (3) Durability, service life and sustainability. These are supported by a fourth Work Package (4) Technology transfer and Entrepreneurship, which has as a main goal to ensure market oriented research. In this last work package, commercialization routes and the key success factors to meet exploitation are","PeriodicalId":18309,"journal":{"name":"MATEC Web of Conferences","volume":"44 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79437469","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}

引用次数: 0

Research on the optimization of electrochemical behavior model in the environment of novel composite fuel cell 新型复合燃料电池环境下电化学行为模型优化研究

MATEC Web of Conferences Pub Date : 2023-01-01 DOI: 10.1051/matecconf/202338001013

Ling Chen, Caibao Han, Chunxiao Wang, Ting Zhu

引用次数: 0

Modelling of Hydraulic Dynamics in Sludge Treatment Reed Beds with Moving Boundary Condition 移动边界条件下污泥处理芦苇床水力动力学建模

MATEC Web of Conferences Pub Date : 2023-01-01 DOI: 10.1051/matecconf/202337701013

Y. Z. Huong, Y. Tan, F. Tang, Saptoro Agus

{"title":"Modelling of Hydraulic Dynamics in Sludge Treatment Reed Beds with Moving Boundary Condition","authors":"Y. Z. Huong, Y. Tan, F. Tang, Saptoro Agus","doi":"10.1051/matecconf/202337701013","DOIUrl":"https://doi.org/10.1051/matecconf/202337701013","url":null,"abstract":"The conventional method of simulation using fixed mesh method (FMM) of discretization is a well-known and trusted procedure in modelling hydraulic dynamics. However, new ideas of innovation in modelling should be advanced. The moving mesh method (MMM) has been considered as a novel approach in modelling hydraulic dynamics after depending on the existing simulation model for decades. The MMM is capable of describing the moving boundary condition of an actual wetland system due to water ponding. An idealized model should be able to simulate the actual hydraulic flows through the system with the corresponding porosity. Hence, a combination of MMM and FMM (MM-FMM) of discretization for hydraulic dynamics is studied in this project to model the flux with respect to water ponding scenario in a sludge treatment reed bed and unsaturated transient flow within the bed. Such method has evidently proved to simulate the actual hydraulic flows in contrast to conventional method. The application of MMM limits the maximum flux to keep within its saturated conductivity, thus reduces the effect of flow overprediction. Subsequently, the simulated results for hydraulic head and moisture content can be predicted for actual condition of different cases according to their respective fluxes.","PeriodicalId":18309,"journal":{"name":"MATEC Web of Conferences","volume":"32 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80571304","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}

引用次数: 0

Intelligent mechanical manufacturing technology based on intelligent manufacturing technology 基于智能制造技术的智能机械制造技术

MATEC Web of Conferences Pub Date : 2023-01-01 DOI: 10.1051/matecconf/202338201026

Kang Zheng

{"title":"Intelligent mechanical manufacturing technology based on intelligent manufacturing technology","authors":"Kang Zheng","doi":"10.1051/matecconf/202338201026","DOIUrl":"https://doi.org/10.1051/matecconf/202338201026","url":null,"abstract":"With the development of intelligent manufacturing technology, the application of intelligent machinery manufacturing technology has been widely promoted. Intelligent machinery manufacturing technology is a technology that integrates advanced manufacturing technology and intelligent control technology. It can realize the intelligent control of the entire manufacturing process, improve the manufacturing efficiency and product quality, and reduce the manufacturing cost. Based on intelligent manufacturing technology, intelligent machinery manufacturing technology has been developed rapidly and has been widely applied in various fields such as automotive, aviation and so on. It can achieve the goals of automation, intelligence, high efficiency, and personalization, and promote the development of various industries towards intelligent manufacturing. However, there are still challenges in the development and application of intelligent machinery manufacturing technology, such as the high cost of equipment, the difficulty in controlling the manufacturing process, and the lack of skilled workers. Future research should focus on solving these challenges and promoting the further development and application of intelligent machinery manufacturing technology.","PeriodicalId":18309,"journal":{"name":"MATEC Web of Conferences","volume":"23 10 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80156417","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}

引用次数: 0