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Underground Space 2022年第3期7卷 453-464页

作者： Biao Zhou Yingbin Gui Xiongyao Xie Wensheng Li Qing Li Key Laboratory of Geotechnical and Underground Engineering Tongji UniversityShanghaiChina Department of Geotechnical Engineering Tongji UniversityShanghaiChina China Railway Siyuan Survey and Design Group WuhanChina

Based on human perception and machine learning methods,this study proposes a measurable method for evaluating visual comfort in underground ***,a comfort evaluation index based on the characteristics of human visual perception is proposed,and color features and segmentation extraction methods for intelligent methods are ***,using probability statistics and machine learning methods,a multi-class intelligent sorting and classification algorithm for ranking visual comfort levels is constructed and a comparison is made of the suitability of different intelligent methods for evaluating visual *** random forest algorithm is then selected as the most effective measurable intelligent evaluation algorithm for underground ***,the proposed method is compared to intelligent methods employed by previous research,and a case study,the Wujiaochang underground space in Shanghai,China,is applied as the *** show that the proposed method can effectively improve the quantification and refinement of human perception and evaluation of comfort in underground spaces;this method will also be useful in computer-aided generative design in the future.

关键词： Underground space visual comfort Measurable evaluation Machine learning

visual comfort is affected by urban colorscape tones in hazy weather

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Frontiers of Architectural Research 2016年第4期5卷 453-465页

作者： Yang Liu Jian Kang Ying Zhang Dehua Wang Linqing Mao Art Academv Northeast Agricultural University Harbin 150030 China School of Architecture University of Sheffield Sheffield 5102TN UK School of Architecture. Harbin Institute of Technology Harbin 150001 China School of Resource and Environment Northeast Agricultural University Harbin 150030 China Harbin Institute of Technolo~v Shenzhen Graduate School Shenzhen 5180555 China School of Architecture Shijiazhuang Tiedao University Shijiazhuang 050043 China

PeopLe＇s visual perception and recognition of urban coLorscape tones change significantly in hazy weather. A psychoLogicaL experiment is conducted in this study to investigate visual comfort related to commercial and residential buildings. visual observations are performed on the tones of an urban coLorscape during hazy weather and air poLLution in Harbin, China. Fifty-eight color samples selected through an orthogonaL method are evaluated through a Ukert scale by 30 subjects in a Laboratory setting. Statistical analysis is performed with the maximal information coefficient and R Language. Experimental results show that the changing threshold values of color tones are related to the visual comfort LeveLs of the subjects. The influence of the three factors of color tones on visual comfort Level is reLativeLy independent, and the effects of value and chroma contrast on color comfort Level are greater than that of hue contrast in hazy weather. Furthermore, the comfort recognition threshold values of color tones in hazy weather are determined through data comparisons and analyses.

关键词： Hazy weather Air pollution Urban colorscape Color tone visual comfort

Bio-inspired interactive kinetic façade:Using dynamic transitory-sensitive area to improve multiple occupants’visual comfort

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Frontiers of Architectural Research 2021年第4期10卷 821-837页

作者： Seyed Morteza Hosseini Masi Mohammadi Torsten Schröder Olivia Guerra-Santin Smart Architectural Technologies Department of the Built EnvironmentEindhoven University of TechnologyEindhovenNetherlands Architectural Design and Engineering Department of the Built EnvironmentEindhoven University of TechnologyEindhovenNetherlands Department of Architecture and Energy Faculty of Architecture and UrbanismUniversity of TehranTehranIran

The architectural form of the façade determines its identity as well as interactions with micro-climate forces of the ambient environment,such as solar *** dynamic nature of daylight and occupants’positions can cause some issues such as heat gains and visual discomfort,which need to be controlled in real-time *** daylight performance and preventing visual discomfort for multiple occupants simultaneously is ***,integrating the biomimicry principles of morphological adaptation with dynamic,complex fenestration,and human-in-loop systems can lead us to find an optimal *** research builds on relevant literature study,biomimicry morphological approaches,and parametric simulations,to develop a bio-inspired interactive kinetic façade for improving multiple occupants’visual comfort simultaneously,inspired by plant’s stomata movement and behavior *** from the transitory stage and hunting new position of stomata’s patchy patterns,leads us to identify the dynamic transitory-sensitive area of attraction point on the façade that is triggered by the dynamic sun-timing position and multiple *** annual climate-based metrics and luminance-based metric simulation results of 810 bioinspired interactive kinetic façade alternatives prove that the elastic-deformable-complexkinetic form triggered by the dynamic transitory-sensitive area can improve the visual comfort of multiple occupants *** particular,the bio-inspired interactive kinetic façade with grid division 8x1 displays extraordinary daylight performance for south direction that prevents visual discomfort by keeping cases in the imperceptible range while providing an adequate average Spatial Daylight Autonomy of 60.5%,Useful Daylight illuminance of 90.47%,and Exceed Useful Daylight illuminance of 2.94%.

关键词： Interactive kinetic facçade Transitory-sensitive area Biomimicry morphological adaptation Dynamic daylight and multiple occupants visual comfort

comfort assessment and energy performance analysis of a novel adjustable semi-transparent photovoltaic window under different rule-based controls

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Building Simulation 2023年第12期16卷 2343-2361页

作者： Yutong Tan Jinqing Peng Meng Wang Yimo Luo Aotian Song Nianping Li College of Civil Engineering Hunan UniversityChangshaHunanChina Key Laboratory of Building Safety and Energy Efficiency of the Ministry of Education ChangshaHunanChina School of Energy and Power Engineering Changsha University of Science and TechnologyChangshaHunanChina Leadus Glass Technology(shenzhen)Co. LTDShenzhenGuangzhouChina

Self-powered photovoltaic windows,which integrate photovoltaic with electrochromic devices,have attracted widespread attention of scholars since they can generate electricity in situ and reduce building energy consumption by modulating the transmitted solar ***,previous studies mainly focused on the material development and performance characterization,lack of comfort assessment and energy saving potential of its application to *** address this issue,an adjustable semi-transparent photovoltaic(ATPV)window which integrates CdTe-based photovoltaic and WO3-based electrochromic,was taken as the research object,and a novel rule-based control strategy taking the beam solar radiation luminous efficacy(CtrlEff)as decision variable was proposed for the first *** ATPV window model was established in WINDOW software based on the measured data,and then it was exported to integrated with a medium office building model in EnergyPlus for performance evaluation including the visual comfort,thermal comfort,net energy consumption,and net-zero energy *** results of a case study in Changsha(E 112°,N 28°)indicated that the ATPV window under the CtrlEff strategy can effectively reduce the southward and westward intolerable glare by 86.9%and 94.9%,respectively,and increase the thermal comfort hours by 5%and 2%,compared to the Low-E ***,the net-zero energy consumption can be decreased by 58.7%,65.7%,64.1%,and 53.8%for south,west,east,and north orientations,and the corresponding net-zero energy ratios are 65.1%,54.6%,62.7%,and 61.6%,*** findings of this study provide new strategies for the control and optimization of the adjustable window.

关键词： adjustable semi-transparent photovoltaic windows rule-based control visual comfort energy consumption net-zero energy ratio

Ensemble machine learning framework for daylight modelling of various building layouts

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Building Simulation 2023年第11期16卷 2049-2061页

作者： Rashed Alsharif Mehrdad Arashpour Emad Golafshani Milad Bazli Saeed Reza Mohandes Department of Civil Engineering Monash UniversityMelbourneAustralia Department of Construction Engineering at AlQunfudah Umm Al-Qura UniversityMeccaSaudi Arabia College of Engineering ITand EnvironmentCharles Darwin UniversityCasuarinaAustralia Department of Mechanical Aerospace and Civil EngineeringUniversity of ManchesterManchesterUK

The application of machine learning(ML)modelling in daylight prediction has been a promising approach for reliable and effective visual comfort *** many advancements have been made,no standardized ML modelling framework exists in daylight *** this study,625 different building layouts were generated to model useful daylight illuminance(UDI).Two state-of-the-art ML algorithms,eXtreme Gradient Boosting(XGBoost)and random forest(RF),were employed to analyze UDI in four categories:UDI-f(fell short),UDI-s(supplementary),UDI-a(autonomous),and UDI-e(exceeded).A feature(internal finish)was introduced to the framework to better reflect real-world *** results show that XGBoost models predict UDI with a maximum accuracy of R^(2)=*** to RF,the XGBoost ML models can significantly reduce prediction *** research directions have been specified to advance the proposed framework by introducing new features and exploring new ML architectures to standardize ML applications in daylight prediction.

关键词： artificial intelligence indoor environment machine learning parametric building layout sunlight visual comfort

A graphical multi-objective performance evaluation method with architect-friendly mode

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Frontiers of Architectural Research 2021年第2期10卷 420-431页

作者： Lingjiang Huang Changchao Fan Zhiqiang(John)Zhai Department of Architecture Wuhan UniversityWuhan 430072China Department of Civil Environmental and Architectural EnsineeringUniversity of ColoradoBoulderCO 80309USA

In response to the inadaptation and difficulties for architects in the use of engineering simulation tools and optimization methods,a method is proposed for graphical performance evaluation achieved with a developed plugin for Grasshopper as an architect-friendly tool to support design exploration in early *** proposed method follows forward work-flow for interactive feedback of performance,focusing on thermal and visual comfort upon a variety of design options.A case study of shading design is *** demonstration illustrated an intuitive and graphical process for qualitative performance evaluation,which is assisted by an overall ratio ranking the integrated performance of design options for a quantitative *** with engineering optimization methods that focus on optimal performance-based solutions,the proposed method presented graphical feedbacks on design performance that are interactive with the designer for performance-informed decision *** this way,the proposed method stimulates the effective and positive application of engineering tools and judgment at the early stage of iterative design.

关键词： Performance evaluation Early design stage Shading Thermal comfort visual comfort

INDOOR DYNAMIC LIGHTING CONTROL SYSTEM FOR A FULL-SCALE PRIVATE OFFICE

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INDOOR DYNAMIC LIGHTING CONTROL SYSTEM FOR A FULL-SCALE PRIV...