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Reliable sleep temperature regulation based on PMV model and dynamic thermal parameters Build. Environ. (IF 7.4) Pub Date : 2024-03-14 Zuoting Song, Yunlong Xia, Meirong Ma, Bin Deng, Te Miao, Qifeng Fan, Jilei Li
Quality of nighttime sleep is crucial. The common practice of air conditioners' sleep mode is to recommend a fixed sleep curve or suggest a pre-trained temperature curve based on geologic location. However, these models neglect the user preference and dynamic changes in the room's thermal environment, making it difficult to satisfy people of different ages and genders and resulting in discomfort during
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The environmental impact of circular building design: A simplified approach to evaluate remountable building elements in life cycle assessment Build. Environ. (IF 7.4) Pub Date : 2024-03-14 Lisa Van Gulck, Marijke Steeman
Remountable building elements can be transformed according to our changing requirements, ensuring a long use of materials and buildings. To stimulate the implementation of remountable building elements, their environmental impact can be quantified through life cycle assessment (LCA). For a fair comparison between remountable and non-remountable building elements, transformations must be accounted for
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A novel method for calculating solar radiation on indoor human body under different weather conditions Build. Environ. (IF 7.4) Pub Date : 2024-03-14 Xingchao Xiang, Yingdong He, Nianping Li, Wenjian Chen, Wenjie Zhang
Indoor occupants may receive large solar heat that affect their health, productivity, and comfort. Most of previous studies focus on indoor occupants with strong direct solar radiation and weak diffuse radiation. Considering the non-uniform solar radiation distribution in the sky, this study proposes the improved HNU Solar Model, a novel method for calculating solar radiation on indoor human body under
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A simple method and prediction model for calculating the cooling load of impinging jet ventilation system in office buildings Build. Environ. (IF 7.4) Pub Date : 2024-03-13 Jun Hu, Yanming Kang, Yihang Lu, Jia Yu, Ke Zhong
An appropriate thermal stratification environment can be formed in impinging jet ventilation (IJV) cooling rooms. In this scenario, the well-mixing hypothesis provided by the conventional mixing ventilation is not applicable to calculate the cooling load of IJV systems. In the present study, a simple method using the cooling load ratio (CLR, ) is proposed for calculating the cooling load in the thermal
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Beyond droplet deposition: Virus transport and deposition modeling in respiratory tract influenced by ambient environment and exhalation activities Build. Environ. (IF 7.4) Pub Date : 2024-03-13 Danting Luo, Zhiwen Vincent Luo, Xiaohong Zheng, Hua Qian
Quantifying virus deposition in the respiratory tract during exposure to various infected environments is crucial for developing effective indoor environmental interventions against airborne infectious diseases. This study presents a novel approach that combines a physical model for virus-laden droplet evaporation, size-independent viral load concentrations, and computational fluid dynamics simulations
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Exploring an unknown: Representative sample survey on structure and energy-related quality of the non-residential building stock in Germany Build. Environ. (IF 7.4) Pub Date : 2024-03-12 Michael Hörner, Holger Cischinsky, Martin Behnisch, Roland Busch, Julian Bischof, Markus Rodenfels, André Hartmann, Robert Hecht, Gotthard Meinel, Martin Schorcht, Steffen Schwarz, Guido Spars, Ann-Katrin Tigges
The non-residential building stock in Germany, as in many other countries, is not fully represented in any official statistics, in contrast to residential buildings. This is surprising given the economic significance of this asset and its importance as a source of greenhouse gases. The knowledge gap was closed in a representative sample survey providing statistically valid data on structural parameters
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Opening configurations and natural cross ventilation performance in a double-loaded multi-level apartment building: A CFD analysis Build. Environ. (IF 7.4) Pub Date : 2024-03-12 Xiaohui Fu, Vin Cent Tai, Lip Kean Moey, Nor Faiza Abd Rahman, Kamarul Arifin Ahmad, David Baglee
This study investigates the impact of varied opening configurations on natural cross ventilation of a double-loaded multi-level apartment. Using computational fluid dynamics (CFD) simulations, twenty-five building models with combinations of top-top (TT), top-bottom (TB), center-center (CC), bottom-bottom (BB), and bottom-top (BT) opening configurations were analyzed in both windward and leeward building
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Gravimetric, morphological, and chemical characterization of fine and ultrafine particulate matter inside fire stations Build. Environ. (IF 7.4) Pub Date : 2024-03-12 Gabriel Sousa, Joana Teixeira, Rui Azevedo, Agostinho Almeida, Cristina Delerue-Matos, Simone Morais, Xianyu Wang, Francisca Rodrigues, Maria Freitas, Marta Oliveira
Poor air quality inside buildings has direct implications for human health. The activity of firefighters causes cancer and promotes the development/aggravation of cardio-respiratory diseases. The indoor air quality inside fire stations remains poorly characterized. This work assesses firefighters’ daily exposure to fine (PM, PM) and ultrafine (PM, PM) particulate matter (PM) inside three microenvironments
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Comprehensive comparisons of RANS, LES, and experiments over cross-ventilated building under sheltered conditions Build. Environ. (IF 7.4) Pub Date : 2024-03-12 Wan Hazwatiamani Wan Ismail, Mohd Faizal Mohamad, Naoki Ikegaya, Jaeyong Chung, Chiyoko Hirose, Azli Abd Razak, Azlin Mohd Azmi
The use of RANS (Reynolds-Averaged Navier-Stokes) simulations to study airflow over cross-ventilated buildings has been widely performed under both isolated and sheltered conditions. For a sheltered environment, great efforts still need to be made as few studies have been conducted on cross-ventilated buildings, located far downstream of the urban morphology. Therefore, in this study, a series of simulations
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Characterization and health risk assessment of nine polychlorinated biphenyls in settled dust of residential buildings in a Middle Eastern area Build. Environ. (IF 7.4) Pub Date : 2024-03-11 Shamim Mosallaei, Hassan Hashemi, Amin Mohammadpour, Mohammad Hoseini
Polychlorinated biphenyls (PCBs) are 209 persistent organic compounds with various applications in chemical, electrical and commercial industries. However, there is considerable evidence of environmental accumulation and potential adverse health effects of this compound. In this study, 40 indoor dust samples were randomly taken from Shiraz houses for the analysis of 9 PCB congeners (PCB-18, 28, 31
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Urban form affects the cool island effect of urban greenery via building shadows Build. Environ. (IF 7.4) Pub Date : 2024-03-11 Qingqing Wang, Lilliana L.H. Peng, Wei Jiang, Shi Yin, Ningye Feng, Lingye Yao
Many studies have revealed that the cool island effects of urban greenery (GCIE) were largely depended on vegetation characteristics, while few studies have examined whether and how the GCIE can be influenced by surrounding urban contexts. This study analyzed the impacts of background urban form on the GCIE via multi-scenario simulations with the ENVI-met model. Two street orientations in conjunction
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Dimensionless correlations of indoor thermal stratification in a non-enclosed large-space building under heating and cooling conditions Build. Environ. (IF 7.4) Pub Date : 2024-03-11 Xiaochen Liu, Xiaohua Liu, Tao Zhang
Indoor thermal stratification is a prevailing phenomenon in large-space buildings, which poses great pressure on their energy consumption and indoor built environment. This paper revealed the mechanism of indoor thermal stratification in a non-enclosed large-space building under heating and cooling conditions. It can be abstracted as a joint effect of the cold and hot air inflow (i.e., HVAC system
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Contrasting inequality of green spaces and buildings between cities in China Build. Environ. (IF 7.4) Pub Date : 2024-03-11 Fengjiao Song, Jiayu Bao, Tao Li, Tao Yu, Ye Yuan, Xiaoran Huang, Anming Bao, Philippe De Maeyer
The significance of sustainable urban development is unequivocally emphasized within the framework of the United Nations Sustainable Development Goals (SDGs), with urban green spaces playing a pivotal role. However, there exists uncertainty concerning the rationalization of urban land use structures in China. This study used a new indicator, the ratio of construction land area to green space area (UGI)
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Considerations for estimating operational greenhouse gas emissions in whole building life-cycle assessments Build. Environ. (IF 7.4) Pub Date : 2024-03-11 Fiona Greer, Paul Raftery, Arpad Horvath
Building operations, which include the energy from electricity and natural gas account for about 28% of global greenhouse gas (GHG) emissions. Stakeholders need accurate assessments of building operations in whole building life-cycle assessments (WBLCA), at both the individual building and building stock-level, to inform mitigation strategy selection, policy development, and progress tracking of building
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Effect of straw fibers addition on hygrothermal and mechanical properties of carbon-free adobe bricks: From material to building scale in a semi-arid climate Build. Environ. (IF 7.4) Pub Date : 2024-03-11 Abdelmounaim Alioui, Samir Idrissi Kaitouni, Youness Azalam, Naoual Al armouzi, El Maati Bendada, Mustapha Mabrouki
To achieve net-zero carbon emissions in a building's lifecycle, a comprehensive approach is required, addressing both embodied and operational carbon footprints. To support this goal, this study assesses the environmental, hygrothermal, and mechanical characteristics of different carbon-free adobe bricks bio-sourced with straw and evaluates their impacts on improving the energy performance of a one-story
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Interaction of life-time and early-life exposure to antibiotics and indoor environmental factors on childhood plant allergy Build. Environ. (IF 7.4) Pub Date : 2024-03-11 Chan Lu, Mengju Lan, Lin Wang, Ying Jiang, Bin Li, Faming Wang
Doctor-diagnosed plant allergy (DPA) in children has emerged as a significant global public health concern. However, the role of antibiotics and indoor environmental factors (IEFs) in childhood DPA remains unknown. To investigate the correlations between childhood DPA and exposure to antibiotics and IEFs during different time periods. A retrospective cohort study of 8,689 preschoolers was performed
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Emotion-oriented recommender system for personalized control of indoor environmental quality Build. Environ. (IF 7.4) Pub Date : 2024-03-10 Hakpyeong Kim, Taehoon Hong
Indoor Environmental Quality (IEQ) significantly influences health, cognitive abilities, and even moods. With the rise of smart homes and the Internet of Things (IoT), the need for personalized IEQ control has become paramount. Traditional systems, primarily focusing on explicit feedback (i.e., preference), often neglect the role of emotions in shaping this feedback. Therefore, this study presents
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Challenges and opportunities of low-cost sensors in capturing the impacts of construction activities on neighborhood air quality Build. Environ. (IF 7.4) Pub Date : 2024-03-10 Weaam Jaafar, Junshi Xu, Emily Farrar, Cheol-Heon Jeong, Arman Ganji, Greg Evans, Marianne Hatzopoulou
In large metropolitan areas such as Toronto, planners are increasingly relying on urban densification to accommodate population growth sustainably. While infill developments support the city's long-term climate goals, on-going construction impacts air quality for local communities. Understanding how neighborhoods are impacted by these localized sources can be achieved by implementing a network of low-cost
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Modelling the relationship between circular economy barriers and drivers for sustainable construction industry Build. Environ. (IF 7.4) Pub Date : 2024-03-09 Sulemana Fatoama Abdulai, Gabriel Nani, Ridwan Taiwo, Prince Antwi-Afari, Tarek Zayed, Adebayo Olatunbosun Sojobi
Circular economy (CE) is an emerging concept in the construction industry that focuses on maintaining materials in a continuous cycle to maximize their value. Although previous studies have explored CE in different contexts, there is a lack of studies investigating the relationship between CE barriers and drivers in developing countries. To address this gap, this study aims to identify a list of barriers
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Effects of arcade design on wind and thermal environment inside an idealized 2D urban canyon with realistic solar heating Build. Environ. (IF 7.4) Pub Date : 2024-03-08 Jian Hang, Qingman Li, Yaxing Du, Jiaxi Feng, Jiajia Hua, Bo Zhao
The arcade design has been widely used in the architecture design since it can provide space for commercial retails and improve local thermal comfort. However, the influences of different arcade design parameters on wind and thermal environment under realistic solar heating conditions are not fully understood, which hinders further application of the arcade design. This paper aims to investigate the
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Investigation of influential variations among variables in daylighting glare metrics using machine learning and SHAP Build. Environ. (IF 7.4) Pub Date : 2024-03-07 Zhaoyang Luo, Xuanning Qi, Cheng Sun, Qi Dong, Jian Gu, Xinting Gao
Previous studies have shown the inconsistent performance of various daylighting glare prediction metrics in office daylit-dominated environments. This lack of consensus may stem from a limited understanding of how their component variables contribute to the prediction power reflected on these discomfort glare models. Previous studies predominantly focused on individual variables' linear, independent
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Effects of tree density variations on outdoor heritage conservation: Numerical study of an ancient brick city wall with four orientations Build. Environ. (IF 7.4) Pub Date : 2024-03-06 Ting Zhang, Changchang Xia, Yan Ma, Ruohan Zhang, Shuai Han, Zhenyi Kong, Shuichi Hokoi, Yonghui Li
Trees possess the potential to safeguard outdoor cultural heritage through the regulation of microclimates in their surroundings. The Leaf Area Index (LAI), a collective measure of the foliar portion within vegetation structure, reflects the regulatory ability of trees. In this study, numerical simulations were performed to compare the hygrothermal conditions of the Nanjing City Wall facing four orientations
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Comparison of time-invariant and adaptive linear grey-box models for model predictive control of residential buildings Build. Environ. (IF 7.4) Pub Date : 2024-03-06 Xingji Yu, Zhengru Ren, Peng Liu, Lars Imsland, Laurent Georges
Model predictive control (MPC) is a promising optimal control technique for activating building energy flexibility using its thermal mass. The performance of the MPC controller is directly related to the accuracy of the model prediction. Grey-box models, based on physical laws and calibrated on measurement data, are commonly used to represent the building thermal dynamics in MPC. Most research works
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Effect of preferable wind directions on personal thermal comfort of occupants in the air-conditioned offices in hot-humid climate Build. Environ. (IF 7.4) Pub Date : 2024-03-06 Fakhrizal Akbar Ilmiawan, Sheikh Ahmad Zaki, Manoj Kumar Singh, Waqas Khalid
The utilization of a desk fan in the personal thermal comfort (PTC) method is a thermal adaptation that provides indoor comfort and energy-saving for office applications due to the high energy consumption of ACs in the HVAC sector. Researchers have conducted numerous studies on this utilisation. However, the question of which wind direction provides thermal comfort for respondents remains an issue
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Local wearable cooling may improve thermal comfort, emotion, and cognition Build. Environ. (IF 7.4) Pub Date : 2024-03-06 Mohamed A. Belyamani, Rachel F. Hurley, Soussan Djamasbi, Gbetonmasse B. Somasse, Sarah Strauss, Hui Zhang, Matthew J. Smith, Steven Van Dessel, Shichao Liu
The objective of this study is to investigate the effectiveness of a local wearable cooling solution in improving thermal comfort, emotional state, and cognitive performance. The study was conducted in an environmental room with air temperature of 31.5 ± 0.26 °C. Thirty participants performed six cognitive tasks while periodically assessing their thermal experience locally where the cooling (Embr wave)
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Thermal network model for anisotropic heat transfer in 3D printed complex geometry structures Build. Environ. (IF 7.4) Pub Date : 2024-03-05 Zhengrong Li, Wenjing Xing, Jingting Sun, Xiwen Feng, Heyu Wang
The sustainability of 3D printed buildings has drawn increasing attention in research. As a foundation for assessing energy efficiency and sustainability, it is crucial to consider the thermal performance of 3D printed walls during the structural design phase. 3D printed walls exhibit anisotropic thermophysical properties and complex heat transfer processes. However, there is a lack of studies accounting
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Unraveling the complexities: Impacts of energy burden on the built environment challenges among assistance-dependent populations in the United Kingdom Build. Environ. (IF 7.4) Pub Date : 2024-03-04 Wei-An Chen, Chien-fei Chen, Mingzhe Liu, Robin Rickard
The intricate relationship between energy burden (EB) and indoor environmental quality (IEQ) is vital for human well-being within the built environment. While previous studies have focused on vulnerable groups, individuals with health concerns have received limited attention. This interdisciplinary study delves into the disparities and cumulative impacts of EB, the built environment, and social demographics
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Occupancy modeling on non-intrusive indoor environmental data through machine learning Build. Environ. (IF 7.4) Pub Date : 2024-03-04 Farzan Banihashemi, Manuel Weber, Fatma Deghim, Chujun Zong, Werner Lang
The primary drivers of energy consumption within buildings are the occupants. Non-intrusive Internet of Things (IoT) technology can be utilized to detect occupancy and optimize energy performance while preserving the privacy of building occupants. This study explores the suitability of various indoor environmental data for occupancy detection in office rooms. Data was collected utilizing an IoT sensory
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Unraveling the link between draught and upper respiratory mucosal immunity: Assessing lysozyme and S-lgA concentrations in nasal lavage fluid Build. Environ. (IF 7.4) Pub Date : 2024-03-03 Weiwei Huang, Xiaohong Zheng, Xiaoxue Cheng, Ziying Zhou, Chunguang Yang, Zifeng Yang, Hua Qian
The purpose of this study is to investigate the effect of draught on upper respiratory tract mucosal immunity, by assessing concentrations of lysozyme and secretory immunoglobulin A (S-IgA) in nasal lavage fluid. A total of 26 subjects were recruited and experienced 4 experiment conditions combined with two ambient temperatures (24 °C and 28 °C) and two air velocities towards the nape (0 m/s and 1 m/s)
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Low-carbon-oriented commercial district urban form optimization and impact assessment analysis Build. Environ. (IF 7.4) Pub Date : 2024-03-03 Jingjing Wang, Wenxiang Liu, Xiuli Du, Weirong Zhang
Commercial buildings have become one of the main sources of carbon emissions. However, the current research on urban form optimization has lacked analyses of the low-carbon indicators of buildings. With the Beijing commercial district as an example, a low-carbon-oriented urban form optimization path is established in this study, and a new method of urban form optimization is developed from a low-carbon
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Impacts of gaps below both door and partition walls of cubicles on odorous gas transport and respiratory infection in a public lavatory Build. Environ. (IF 7.4) Pub Date : 2024-03-03 Kuibo Wu, Tengfei (Tim) Zhang, Feng Wang
Odorous gas transport and respiratory infection in a public lavatory are highly subject to the adopted ventilation system. The gaps below both the cubicle door and the partition walls can affect the ventilation performance. This study employed a validated computational fluid dynamics (CFD) program to investigate a public lavatory containing four cubicles with squat toilets. The airflow, concentrations
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Indoor plants regulate the respiratory bacteria of high-altitude migrants and improve their environmental adaptability Build. Environ. (IF 7.4) Pub Date : 2024-03-03 Yi Deng, Mengjie Duan, Yiran Lu, Yifan Li, Li Liu
Migrants traveling from plains to Ngari Prefecture, Tibet, China, with an average altitude of over 4500 m, may suffer serious respiratory function deterioration. Regulating the respiratory microbiome by altering residence indoor air microbiome is a potential approach to improve their respiratory health. To investigate the impact of indoor plants on the respiratory bacteria of high-altitude migrants
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Energy consumption and environmental parameters in Madrid social housing. Performance in the face of extreme weather events Build. Environ. (IF 7.4) Pub Date : 2024-03-03 Carmen Alonso, Fernando de Frutos, Fernando Martín-Consuegra, Ignacio Oteiza, Borja Frutos
Housing energy rehabilitation is currently a priority in Europe. In vulnerable neighbourhoods, improving energy efficiency and comfort conditions has an important impact on people living conditions. Rehabilitation strategies are usually designed according to standard scenarios, without taking into account variations related to the users or the type of building. Monitoring this type of housing offers
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Assessing multi-domain impact of IAQ and noise on productivity with portable air cleaners through physiological signals Build. Environ. (IF 7.4) Pub Date : 2024-03-01 Zhipeng Deng, Bing Dong, Xin Guo, Xuezheng Wang, Jianshun Zhang
The office environment's indoor air quality (IAQ) and noise levels are critical factors that affect productivity and overall health. However, a research gap still exists on multi-domain impact of IAQ and noise on human physiological signals. The research aims to establish a comprehensive understanding of the multi-domain impact by analyzing physiological signals such as Electroencephalogram (EEG),
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Urban planning impact on summer human thermal comfort in Doha, Qatar Build. Environ. (IF 7.4) Pub Date : 2024-03-01 Shikha Patel, Madhavi Indraganti, Rana N. Jawarneh
Urbanization entails extensive construction and substantial land use alterations, converting natural areas into residential, commercial, mixed-use and industrial. These alterations disrupt the land surface energy, impacting the land surface temperatures (LSTs). Elevated LSTs affect the thermal comfort of urban residents exerting pressure on the environment and ecosystems. This study investigates the
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Exploring on the prediction model of human skin temperature and rectal temperature under heat stress Build. Environ. (IF 7.4) Pub Date : 2024-03-01 Yongqiang Li, Runming Yao, Huangwei Zhang, Chenqiu Du
Hot environments cast direct influence on people's well-beings and health besides working productivity during the accelerating global warming. The systematic mechanism is not entirely clear due to the complex human physiological response which also handled human heat strain protection. This study carries out mathematical derivation on the rectal temperature and skin temperature under human heat strain
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Low-cost sensor-based investigation of CO2 and volatile organic compounds in classrooms: Exploring dynamics, ventilation effects and perceived air quality relations Build. Environ. (IF 7.4) Pub Date : 2024-03-01 Sara Bjerre Sørensen, Kasper Kristensen
Poor classroom air quality (CAQ) can have negative impacts on student health, well-being and performance. Although CO concentrations are the proxy most often applied when assessing classroom ventilation and air quality, volatile organic compounds (VOCs) are important contributors to classroom air pollution. However, little is known about the sources and dynamics of VOCs in classrooms and its relation
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Exploring occupant detection model generalizability for residential buildings using supervised learning with IEQ sensors Build. Environ. (IF 7.4) Pub Date : 2024-03-01 Kamilla Heimar Andersen, Hicham Johra, Markus Schaffer, Anna Marszal-Pomianowska, Henrik N. Knudsen, Per Kvols Heiselberg, William O'Brien
This study explores two modeling approaches for occupancy detection at room level for residential buildings in Denmark. The aim is to assess the performance and generalizability of occupant detection models using XGBoost method trained on a rich dataset comprising indoor environmental quality (IEQ) variables and occupancy ground truth. A global approach (all rooms) and a room-specific approach are
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Preconcentrating sensor systems toward indoor low-concentration VOC detection by goal-oriented, sequential, inverse design strategy Build. Environ. (IF 7.4) Pub Date : 2024-03-01 Yan Wang, Zhuo Chen, Qiwei Chen, Enze Tian, Ning Han, Jinhan Mo
The techniques capable of accurately and effectively detecting low-concentration volatile organic compounds (VOCs) are promising for environmental contaminant monitoring and non-invasive disease diagnosis. However, low-concentration measurement and selective quantification of multiple components are two major challenges for VOC detection. This work proposes the idea of a sensing system that incorporates
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Urban systems exploration: A generic process for multi-objective urban planning to support decision making in early design phases Build. Environ. (IF 7.4) Pub Date : 2024-02-29 Roland Reitberger, Nicolai Palm, Herbert Palm, Werner Lang
The competition for limited urban spaces due to the growing demand for both living space and green areas causes conflicts in urban development. This paper aims to provide urban planners with a systematic multi-criteria decision making process and a supporting tool-chain. The process uses multi-objective optimization (MOO) to quantify trade-offs, allowing planners to gain a broad perspective on optimal
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A longitudinal study of IAQ metrics and the efficacy of default HVAC ventilation Build. Environ. (IF 7.4) Pub Date : 2024-02-29 Mahsa Pahlavikhah Varnosfaderani, Arsalan Heydarian, Farrokh Jazizadeh
People spend approximately 90% of their time indoors, making effective indoor air quality (IAQ) monitoring crucial for occupants’ well-being. Traditional IAQ monitoring primarily focuses on carbon dioxide () levels to inform the operation of Heating, Ventilation, and Air Conditioning (HVAC) systems. However, HVAC systems often overlook other critical IAQ metrics, such as volatile organic compounds
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Semivolatile organic compounds in U.S. high schools: Concentrations and associations with building characteristics and seasonal variations Build. Environ. (IF 7.4) Pub Date : 2024-02-29 Hongwan Li, Chenyang Bi, Atila Novoselac, Kerry A. Kinney, Richard L. Corsi, Michael Wade, Ying Xu
High schools contain various sources that can release semivolatile organic compounds (SVOCs) including phthalates and other plasticizers, polybrominated diphenyl ethers (PBDEs) and organophosphate flame retardants (OPFRs) and pesticides. In this study, concentrations of 42 SVOCs were measured in settled dust (N = 70), heating, ventilation, and air conditioning (HVAC) filter dust (N = 13), and indoor
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Concepts of user-centred lighting controls for office applications: A systematic literature review Build. Environ. (IF 7.4) Pub Date : 2024-02-29 Sascha Hammes, David Geisler-Moroder, Martin Hauer, Johannes Weninger, Maximilian Obleitner, Josef Miller, Daniel Plörer, Vincent Van Karsbergen, Robert Weitlaner, Rainer Pfluger
Due to the very limited information available during building design phase, lighting automation systems tend to follow pre-defined control curves and use normative default values. However, these are unlikely to reflect the wide variation in daily working hours and individual lighting preferences. Inadequate user modelling can result in missed energy and comfort targets, as well as insufficient light
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Enhancing individual thermal preference satisfaction and energy efficiency in multi-occupant spaces through stratified micro-environments Build. Environ. (IF 7.4) Pub Date : 2024-02-28 Xue Tian, Jian Liu, Zhang Lin
This investigation assesses the capability of stratified micro-environments (SMEs) to cater to individual thermal preferences while enhancing energy efficiency within a shared space. The test environment is a ventilated chamber featuring a series of adjustable supply air terminals, strategically positioned to serve eight occupied positions. Employing a computational fluid dynamics (CFD) model, which
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Microclimate spatio-temporal prediction using deep learning and land use data Build. Environ. (IF 7.4) Pub Date : 2024-02-28 Jintong Han, Adrian Chong, Joie Lim, Savitha Ramasamy, Nyuk Hien Wong, Filip Biljecki
Urban microclimate prediction is crucial for various fields, including Building Performance Simulation (BPS), outdoor thermal comfort, building life cycle, and residential health. Existing methods involve using classical weather file data, such as Typical Meteorological Years (TMY), or machine learning techniques for time-based forecasting. However, the incorporation of both spatial and temporal dimensions
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Comparing classic regression with credit scorecard model for predicting sick building syndrome risk: A machine learning perspective in environmental assessment Build. Environ. (IF 7.4) Pub Date : 2024-02-28 Mohammad Reza Hosseini, Hatam Godini, Reza Fouladi-Fard, Zeinab Ghanami, Nassim Ghafoory, Mohammad Balali, Mohammad Faridan
Quarantine policy for COVID-19 control brings outdoor risks to indoor, leading to unintended exposure to sick building syndrome (SBS) symptoms. The aim of this study was to establish a comparative framework for the application of multiple logistic regression (classic regression) and credit scorecard models based on Logistic Regression (logit) and Decision Tree (DT) models in predicting the risk of
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Measurement uncertainty and behaviour analysis of indoor air quality variables of thermal zones of an in-use mechanically ventilated building Build. Environ. (IF 7.4) Pub Date : 2024-02-28 Pablo Hernandez-Cruz, Aitor Erkoreka-Gonzalez, Catalina Giraldo-Soto, Laurent Mora, Pablo Eguía-Oller
Most monitoring systems and models in buildings assume homogeneous measurements of indoor variables such as temperature, relative humidity (RH), CO concentration or water vapour content (Pv) throughout a thermal zone. However, these indoor variables may have different values within a thermal zone, depending on the physical location of the sensor. This spatial variability, which is not an error per
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Outdoor thermal comfort and activities in urban parks: An experiment study in humid subtropical climates Build. Environ. (IF 7.4) Pub Date : 2024-02-27 Zhiye Li, Lei Zhou, Xiaoqiang Hong, Sihan Qiu
A pleasant outdoor thermal environment could substantially enrich residents' enjoyment for outdoor activities. However, previous studies on outdoor thermal comfort in humid subtropical regions have given limited attention to urban parks. This study aimed to explore the relationship between outdoor thermal comfort and spatial behaviors in urban parks located in humid subtropical regions. Physical measurements
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A GIS-based approach to assess the influence of the urban built environment on cardiac and respiratory outcomes in older adults Build. Environ. (IF 7.4) Pub Date : 2024-02-27 Hélène Niculita-Hirzel, Alexandre H. Hirzel, Pascal Wild
The impact of the urban built environment on cardiovascular and respiratory health has been studied extensively in children and adults. However, limited research exists on this topic in older adults. To fill this gap, we conducted a ten-year retrospective study of a cohort of elderly people living in Lausanne. We extracted cardiac and respiratory health outcomes of people living at the same address
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Impact of vertical greening on urban microclimate and historic building materials: A meta-analysis Build. Environ. (IF 7.4) Pub Date : 2024-02-27 M. De Groeve, E. Kale, S. Godts, S.A. Orr, T. De Kock
An urban environment is subject to elevated temperatures and higher pollution levels compared to less densely populated areas. Implementing green infrastructures, such as vertical greening, is one method to mitigate this effect. Vertical greening is especially suitable for built heritage in city centres due to the limited space required for plant growth, while still providing substantial green surface
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Visualising a framework for enhancing material circularity in building construction projects: Drivers, barriers, and strategies Build. Environ. (IF 7.4) Pub Date : 2024-02-27 Isuri Amarasinghe, Ying Hong, Rodney A. Stewart
Material circularity offers a novel perspective for industrial ecosystems, emphasising the reintegration of materials and products into the supply chain as valuable resources. This approach leads to a reduction in primary resource consumption and waste generation. Nevertheless, the incorporation of material circularity within the construction sector is hindered by barriers, necessitating careful analysis
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Evaluation of a single-layer urban energy balance model using measured energy fluxes by scaled outdoor experiments in humid subtropical climate Build. Environ. (IF 7.4) Pub Date : 2024-02-27 Jian Hang, Liyue Zeng, Xianxiang Li, Dongyang Wang
Urban energy balance models can simulate the localized climate and fluxes in urban areas. They are often evaluated using real urban site observations. However, uncertainties in anthropogenic emission, geometry and materials can hinder interpretation. These uncertainties can be eliminated by scaled outdoor models. We assess the performance of a single-layer urban canopy model (SLUCM) offline in predicting
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DMFF: Deep multimodel feature fusion for building occupancy detection Build. Environ. (IF 7.4) Pub Date : 2024-02-27 Kailai Sun
The 2022 Global Status Report for Buildings and Construction (Buildings-GSR) indicates that construction activities have returned to pre-pandemic levels in most major economies, alongside more building energy consumption. To achieve the Net Zero emissions target by 2050, particularly in the post-pandemic era, accurate occupancy information is important to enhance building energy efficiency and improve
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Smart urban windcatcher: Conception of an AI-empowered wind-channeling system for real-time enhancement of urban wind environment Build. Environ. (IF 7.4) Pub Date : 2024-02-26 Bingchao Zhang, Cruz Y. Li, Hideki Kikumoto, Jianlei Niu, Tim K.T. Tse
The dense configuration and rapid proliferation of high-rise buildings in central Hong Kong have led to increasing stagnation of pedestrian-level airflows, lowering the wind speed and exacerbating issues in wind and thermal comfort. Addressing these problems can be difficult without significant building renovations and urban re-planning. This paper introduces a novel framework for the real-time enhancement
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Light-environment interactions and integrative lighting design: Connecting visual, non-visual and energy requirements in a case study experiment Build. Environ. (IF 7.4) Pub Date : 2024-02-24 Laura Bellia, Urszula Błaszczak, Francesca Diglio, Francesca Fragliasso
Beyond vision, light influences human circadian rhythms and buildings' energy consumption. Design solutions are needed to satisfy visual and circadian requirements while minimizing lighting energy demands. By reflecting the incident radiation, inner surfaces influence spatial and spectral light distribution, affecting the energy needed to achieve task illuminance and light-induced circadian response
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Microalgae bio-reactive façade: Location and weather-based systematic optimization Build. Environ. (IF 7.4) Pub Date : 2024-02-24 Victor Pozzobon
This article explores the design of microalgae biofaçade thanks to a numerical model describing the system’s thermal and biological behavior. Design options (single vs. double glazing, radiation-selective film, culture reservoir thickness) and operation strategies (light transmission, microalgae strain, sparged air origin, boiler fumes reuse) are screened systematically. The context for this investigation
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Assessing and predicting indoor environmental quality in 13 naturally ventilated urban residential dwellings Build. Environ. (IF 7.4) Pub Date : 2024-02-23 Huimin Yao, Xiong Shen, Wentao Wu, Yuling Lv, V. Vishnupriya, Hong Zhang, Zhengwei Long
This research presents the assessments of IEQ in 13 naturally ventilated urban residential dwellings based on the long-term monitoring of CO2, PM2.5, formaldehyde, temperature, and relative humidity within a year. In addition to the costly monitoring techniques, we utilized time series prediction methods as an economical and efficient approach to comprehend the quality of indoor environment. Nevertheless
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How to measure and control indoor air quality based on intelligent digital twin platforms: A case study in China Build. Environ. (IF 7.4) Pub Date : 2024-02-23 Yuchong Qian, Jiawei Leng, Kai Zhou, Yuxuan Liu
In order to address the current disparity between indoor air quality assessment, prediction, and control, this study proposes an intelligent management approach for indoor air quality based on digital twin platforms. By collecting and fusing multi-level, and multi-dimensional data at the physical level, a comprehensive data integration and analysis platform is established in the digital realm, encompassing
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Measurement of steady state and dynamic metabolic rates under typical daily activities Build. Environ. (IF 7.4) Pub Date : 2024-02-23 Xinyu Jia, Sishi Li, Jiahao Wang, Yingxin Zhu, Zhenyu Du, Xinghui Zhang, Bin Cao
An increasing number of studies have focused on the impact of metabolic rate (), an essential factor affecting thermal regulation in the human body, on thermal comfort. However, current standards and research have several limitations. First, the quantitative relationship between and time was not addressed after changes in the activity status. Second, walking varied significantly among the different