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building Simulation 2024年第6期17卷 955-964页

作者： Xiaoxiao Su Chenglong Luo Xinzhu Chen Jie Ji Yanshun Yu Yuandan Wu Wu zou School of Energy and Power engineering Nanjing University of Science and TechnologyNanjing210094China department of Thermal Science and Energy engineering University of Science and Technology of ChinaHefei230027China Institute of Energy Research Jiangxi Academy of SciencesNanchang330096China

Bifacial PV modules capture solar radiation from both sides,enhancing power generation by utilizing reflected ***,there are difficulties in obtaining ground albedo data due to its dynamic *** address this issue,this study established an experimental testing system on a rooftop and developed a model to analyze dynamic albedo variations,utilizing specific data from the *** results showed that the all-day dynamic variations in ground albedo ranged from 0.15 to 0.22 with an average of ***,this study evaluates the annual performance of a bifacial PV system in Beijing by considering the experimental conditions,utilizing bifacial modules with a front-side efficiency of 21.23%and a bifaciality factor of 0.8,and analyzing the dynamic all-day albedo data obtained from the numerical *** results indicate that the annual radiation on the rear side of bifacial PV modules is 278.90 kWh/m^(2),which accounts for only 15.50%of the front-side ***,when using the commonly default albedo value of 0.2,the rear-side radiation is 333.01 kWh/m^(2),resulting in an overestimation of 19.40%.Under dynamic albedo conditions,the bifacial system is predicted to generate an annual power output of 412.55 kWh/m^(2),representing a significant increase of approximately 12.37%compared to an idealized monofacial PV system with equivalent front-side *** a 25-year lifespan,the bifacial PV system is estimated to reduce carbon emissions by 8393.91 kgCO_(2)/m^(2),providing an additional reduction of 924.31 kgCO_(2)/m^(2)compared to the idealized monofacial PV *** findings offer valuable insights to promote the application of bifacial PV modules.

关键词： bifacial PV module ground albedo simulation carbon emission reduction

RRT Autonomous Detection Algorithm Based on Multiple Pilot Point Bias Strategy and Karto SLAM Algorithm

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Computers, Materials & Continua 2024年第2期78卷 2111-2136页

作者： Lieping Zhang Xiaoxu Shi Liu Tang Yilin Wang Jiansheng Peng Jianchu zou Key Laboratory of Advanced Manufacturing and Automation Technology(Guilin University of Technology) Education Department of Guangxi Zhuang Autonomous RegionGuilin541006China College of Mechanical and Control engineering Guilin University of TechnologyGuilin541006China Guilin Mingfu Robot Technology Company Limited Guilin541199China Key Laboratory of AI and Information Processing(Hechi University) Education Department of Guangxi Zhuang Autonomous RegionYizhou546300China

A Rapid-exploration Random Tree(RRT)autonomous detection algorithm based on the multi-guide-node deflection strategy and Karto Simultaneous Localization and Mapping(SLAM)algorithm was proposed to solve the problems of low efficiency of detecting frontier boundary points and drift distortion in the process of map building in the traditional RRT algorithm in the autonomous detection strategy of mobile ***,an RRT global frontier boundary point detection algorithm based on the multi-guide-node deflection strategy was put forward,which introduces the reference value of guide nodes’deflection probability into the random sampling function so that the global search tree can detect frontier boundary points towards the guide nodes according to random *** that,a new autonomous detection algorithm for mobile robots was proposed by combining the graph optimization-based Karto SLAM algorithm with the previously improved RRT *** algorithm simulation platform based on the Gazebo platform was *** simulation results show that compared with the traditional RRT algorithm,the proposed RRT autonomous detection algorithm can effectively reduce the time of autonomous detection,plan the length of detection trajectory under the condition of high average detection coverage,and complete the task of autonomous detection mapping more ***,with the help of the ROS-based mobile robot experimental platform,the performance of the proposed algorithm was verified in the real environment of different *** experimental results show that in the actual environment of simple and complex obstacles,the proposed RRT autonomous detection algorithm was superior to the traditional RRT autonomous detection algorithm in the time of detection,length of detection trajectory,and average coverage,thus improving the efficiency and accuracy of autonomous detection.

关键词： Autonomous detection RRT algorithm mobile robot ROS Karto SLAM algorithm

Long-term performance of recycled asphalt mixtures containing high RAP and RAS

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Journal of Road engineering 2024年第1期4卷 36-53页

作者： Jiangmiao Yu Zengyao Lin Guilian zou Huayang Yu Zhen Leng Yuan Zhang School of Civil engineering and Transportation South China University of TechnologyGuangzhou 510641China department of Civil and Environmental engineering The Hong Kong Polytechnic UniversityHong KongChina State Key Laboratory of Subtropical building and Urban Science South China University of TechnologyGuangzhou 510640China

The application of reclaimed asphalt pavement(RAP)and reclaimed asphalt shingles(RAS)on asphalt pavement can reduce the asphalt paving cost,conserve energy and protect the ***,the use of high contents of RAP and RAS in asphalt pavement may lead to durability issues,especially the fatigue cracking and thermal *** is necessary to conduct a series of analyses on asphalt mixtures containing high RAP and RAS,and seek methods to enhance their long-term *** paper provides a comprehensive over-view of the long-term performance of recycled asphalt mixtures containing high contents of RAP and *** findings in this research show that rutting resistance of high recycled asphalt mixtures is not a concern,whereas their resistance to fatigue and thermal cracking is not *** agents can be used to improve the thermal cracking resistance of high recycled asphalt *** optimum decision on recycling agents will improve the durability properties of high recycled asphalt *** is recommended that to use a balanced mixture design approach with testing of the blended asphalt binders will provide better understanding of long-term performance of recycled asphalt mixtures containing high RAP and RAS.

关键词： Recycled asphalt mixture Recycling agents Long-term performance Cracking

Step‑by‑Step Modulation of Crystalline Features and Exciton Kinetics for 19.2%Efficiency Ortho‑Xylene Processed Organic Solar Cells

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Nano-Micro Letters 2024年第2期16卷 258-272页

作者： Bosen zou Weiwei Wu Top Archie Dela Pena Ruijie Ma Yongmin Luo Yulong Hai Xiyun Xie Mingjie Li Zhenghui Luo Jiaying Wu Chuluo Yang Gang Li He Yan department of Chemistry department of Chemistry and Hong Kong Branch of Chinese National engineering Research Center for Tissue Restoration and Reconstruction The Hong Kong University of Science and TechnologyClear Water BayHong KongPeople’s Republic of China department of Electronic and Information engineering Research Institute for Smart Energy(RISE)Guangdong‑Hong Kong‑Macao(GHM)Joint Laboratory for Photonic‑Thermal‑Electrical Energy Materials and DevicesThe Hong Kong Polytechnic UniversityHung HomKowloonHong Kong 999077People’s Republic of China The Hong Kong University of Science and Technology Function HubAdvanced Materials ThrustNanshaGuangzhou 511400People’s Republic of China department of Applied Physics The Hong Kong Polytechnic UniversityHong KongPeople’s Republic of China Shenzhen Key Laboratory of New Information Display and Storage Materials College of Materials Science and EngineeringShenzhen UniversityShenzhen 518060People’s Republic of China

With plenty of popular and effective ternary organic solar cells(OSCs)construction strategies proposed and applied,its power conversion efficiencies(PCEs)have come to a new level of over 19%in single-junction ***,previous studies are heavily based in chloroform(CF)leaving behind substantial knowledge deficiencies in understanding the influence of solvent choice when introducing a third ***,we present a case where a newly designed asymmetric small molecular acceptor using fluoro-methoxylated end-group modification strategy,named BTP-BO-3FO with enlarged bandgap,brings different morphological evolution and performance improvement effect on host system PM6:BTP-eC9,processed by CF and ortho-xylene(o-XY).With detailed analyses supported by a series of experiments,the best PCE of 19.24%for green solvent-processed OSCs is found to be a fruit of finely tuned crystalline ordering and general aggregation motif,which furthermore nourishes a favorable charge generation and recombination ***,over 19%PCE can be achieved by replacing spin-coating with blade coating for active layer *** work focuses on understanding the commonly met yet frequently ignored issues when building ternary blends to demonstrate cutting-edge device performance,hence,will be instructive to other ternary OSC works in the future.

关键词： Organic solar cells Ternary design Solvent selection Flouro-methoxylated end group Morphological ordering

Study on the hybrid energy storage for industrial park energy systems:Advantages,current status,and challenges

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National Science Open 2024年第3期3卷 110-145页

作者： Jiacheng Guo Jinqing Peng Yimo Luo Bin zou Zhengyi Luo College of Civil engineering Hunan University Key Laboratory of building Safety and Energy Efficiency of the Ministry of Education

In order to increase the renewable energy penetration for building and industrial energy use in industrial parks,the energy supply system requires transforming from a centralized energy supply mode to a distributed+centralized energy supply *** application of a hybrid energy storage system can effectively solve the problem of low renewable energy utilization levels caused by a spatiotemporal mismatch between the energy source and *** study summarized the advantages and limitations of common energy storage technologies in industrial parks from the aspects of service life,response time,cycle efficiency and energy storage density,*** advantages of the hybrid energy storage system in industrial parks were also discussed in terms of sustainable development,climate change mitigation,social impact, and other *** typical frameworks of hybrid energy storage were summarized,and the advantages,disadvantages,and application scenarios of each typical framework were *** current status of hybrid energy storage systems was summarized from the aspects of system modeling,hybrid energy storage mechanisms,design optimization,and operation *** the same time,the key challenges in modeling,regulation,and optimization of hybrid energy storage systems were *** discussion leads to proposals for the direction of future *** optimization methods and processes for designing and operating hybrid energy storage systems were proposed based on theoretical frameworks and *** is hoped that this review can provide some guidance and serve as a reference for developing and applying hybrid energy storage systems in industrial parks.

关键词： industrial park energy system hybrid energy storage renewable energy utilization regulation and operation energy conservation and carbon reduction

A New Dynamic and Vertical Photovoltaic Integrated building Envelope for High-Rise Glaze-Facade buildings

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engineering 2024年第8期39卷 194-203页

作者： Wuwei zou Yan Wang Enze Tian Jiaze Wei Jinqing Peng Jinhan Mo College of Civil and Transportation engineering Shenzhen UniversityShenzhen 518060China Beijing Key Laboratory of Indoor Air Quality Evaluation and Control Department of Building ScienceSchool of ArchitectureTsinghua UniversityBeijing 100084China Songshan Lake Materials Laboratory Dongguan 523808China Institute of Physics Chinese Academy of SciencesBeijing 100190China College of Civil engineering Hunan UniversityChangsha 410082China State Key Laboratory of Intelligent Geotechnics and Tunnelling Shenzhen 518060China Key Laboratory of Coastal Urban Resilient Infrastructures Ministry of EducationShenzhen UniversityShenzhen 518060China Key Laboratory of Eco Planning&Green building Ministry of EducationTsinghua UniversityBeijing 100084China

Substantially glazed facades are extensively used in contemporary high-rise buildings to achieve attractive architectural *** conflicts exist among architectural aesthetics,building energy consumption,and solar energy harvesting for glazed *** this study,we addressed these conflicts by introducing a new dynamic and vertical photovoltaic integrated building envelope(dvPVBE)that offers extraordinary flexibility with weather-responsive slat angles and blind positions,superior architectural aesthetics,and notable energy-saving *** hierarchical control strategies were proposed for different scenarios of the dvPVBE:power generation priority(PGP),natural daylight priority(NDP),and energy-saving priority(ESP).Moreover,the PGP and ESP strategies were further analyzed in the simulation of a *** office room integrated with a dvPVBE was modeled using *** influence of the dvPVBE in improving the building energy efficiency and corresponding optimal slat angles was investigated under the PGP and ESP control *** results indicate that the application of dvPVBEs in Beijing can provide up to 131%of the annual energy demand of office rooms and significantly increase the annual net energy output by at least 226%compared with static photovoltaic(PV)*** concept of this novel dvPVBE offers a viable approach by which the thermal load,daylight penetration,and energy generation can be effectively regulated.

关键词： Weather-responsive facades building energy efficiency Dynamic photovoltaic integrated building envelopes(PVBEs) building-integrated photovoltaics(BIPVs)

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碳酸水环境下隧道水泥基材料的抗侵蚀特性

建筑材料学报 2024年第5期27卷 408-417页

作者：李康邹敏王希谢永江刘娟红中国铁道科学研究院研究生部北京100081 中国铁道科学研究院集团有限公司高速铁路轨道系统全国重点实验室北京100081 中国铁道科学研究院集团有限公司铁道建筑研究所北京100081 北京科技大学土木与资源工程学院北京100083

对比了多种水泥基材料在碳酸水加速侵蚀前后的抗压强度、材料内部的物相迁移和孔结构特征.结果表明:碳酸水侵蚀后水泥基材料强度的发展受到限制,Ca(OH)_(2)和CaCO_(3)含量同时降低,孔径粗化且有害孔的比例增大;以水化硅酸钙凝胶和Ca(OH)... 详细信息

对比了多种水泥基材料在碳酸水加速侵蚀前后的抗压强度、材料内部的物相迁移和孔结构特征.结果表明:碳酸水侵蚀后水泥基材料强度的发展受到限制,Ca(OH)_(2)和CaCO_(3)含量同时降低,孔径粗化且有害孔的比例增大;以水化硅酸钙凝胶和Ca(OH)_(2)为主要水化产物的胶凝体系最容易受到碳酸水的侵蚀,且Ca(OH)_(2)含量越高,水泥基材料抗碳酸水侵蚀的能力越弱;以钙矾石为主要水化产物的胶凝体系抗碳酸水侵蚀的能力明显增强.

关键词：隧道水泥基材料碳酸水侵蚀物相分析孔结构 Rietveld法

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大小跨高比落叶松胶合木梁抗弯性能对比研究

建筑结构 2024年第12期54卷 153-158页

作者：邹艳花陈伯望刘陈诚周佳乐湖南城建职业技术学院建筑工程系湘潭411101 中南林业科技大学土木工程学院长沙410004 长沙理工大学土木工程学院长沙410114

为对比大小跨高比落叶松胶合木梁的抗弯性能,对2组6根落叶松胶合木梁进行了四点弯曲试验研究,其中两组试件跨高比分别为20和12。结果表明:大、小跨高比胶合木梁的破坏形式分别为顺纹受拉脆性破坏和顺纹受剪脆性破坏;与大跨高比胶合木梁... 详细信息

为对比大小跨高比落叶松胶合木梁的抗弯性能,对2组6根落叶松胶合木梁进行了四点弯曲试验研究,其中两组试件跨高比分别为20和12。结果表明:大、小跨高比胶合木梁的破坏形式分别为顺纹受拉脆性破坏和顺纹受剪脆性破坏;与大跨高比胶合木梁相比,小跨高比胶合木梁受弯极限承载力相对较高;大跨高比胶合木梁受弯过程中,中性轴位置基本不变;小跨高比胶合木梁受弯过程中,中性轴略有下移。小跨高比胶合木梁抗弯刚度约为大跨高比胶合木梁的3.4倍;大跨高比胶合木梁延性系数约为小跨高比胶合木梁的3.9倍。最后,基于极限应变分析方法,提出了胶合木梁发生受拉和受剪破坏界限跨高比的计算公式,并求得落叶松胶合木梁的界限跨高比为12.62。

关键词：胶合木梁抗弯性能跨高比刚度分析延性分析

Numerical simulation of high-energy neutron radiation effect of scintillation fiber

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Nuclear Science and Techniques 2008年第4期19卷 236-240页

作者： MA Qingli TANG Shibiao zou Jiwei Electronics department Electronic Engineering Institute Hefei 230038 China department of Modern Physics University of Science and Technology of China Hefei 230026 China department of Scientific Research Electronic Engineering Institute Hefei 230038 China

Due to their low cost,flexibility,and convenience for long distance data transfer,plastic scintillation fibers (PSF) have been increasingly used in building detectors or sensors for detecting various radiations and imaging. In this paper,GEANT4 Monte Carlo simulation tool was used to obtain some radiation effects of PSF under high-energy neutron irradiation. BCF-20,a plastic fiber material,produced by Saint-Gobain,was used in the simulation. The fiber consists of a core scintillating material of polystyrene and an acrylic outer cladding. Incident neutrons produce energy deposition in fiber through neutron induced recoil proton events. The relationships between energy deposition efficiency and fiber length,fiber radius and incident neutron energy are presented. The variation with those parameters and parameter selection are also analyzed.

关键词：核爆炸辐射作用高能量中子纤维