Building and Environment最新文献_第9页

Quantifying the impact of urban geometry on the urban albedo: A simplified 3D radiation model approach 量化城市几何对城市反照率的影响：一种简化的三维辐射模型方法

IF 7.1 1区工程技术

Building and Environment Pub Date : 2025-05-06 DOI: 10.1016/j.buildenv.2025.113134

Hongyan Zhou , Guanwen Chen , Shuojun Mei , Jian Hang , Yasemin D. Aktas , Xinyan Yang , Kai Wang

{"title":"Quantifying the impact of urban geometry on the urban albedo: A simplified 3D radiation model approach","authors":"Hongyan Zhou , Guanwen Chen , Shuojun Mei , Jian Hang , Yasemin D. Aktas , Xinyan Yang , Kai Wang","doi":"10.1016/j.buildenv.2025.113134","DOIUrl":"10.1016/j.buildenv.2025.113134","url":null,"abstract":"<div><div>Urban Albedo (UA) is a critical parameter in urban and built environments. It determines the radiation gain in an urban area, which in turn influences urban surface energy balance and urban microclimate. The complex three-dimensional (3D) geometry of urban areas plays a significant role in defining the UA through radiation shading and trapping effects through multi-reflection. Resolving these complex processes often requires extensive computational resources, particularly for city-scale simulations. This study presents a simplified 3D urban radiation transfer model, the Mean Reflection Model (MRM), which can reduce the computational complexity from <em>O(n²)</em> to <em>O(n)</em> while maintaining accuracy within 5 % of that of traditional 3D models. The model is validated against scaled outdoor measurements and applied to real-world scenarios in Shanghai, as well as idealized city simulations. It shows that the UA varies significantly with different urban geometries, with higher building densities and heights generally leading to lower UAs. However, the relationship is non-linear, as the UA exhibits a minimum at intermediate building density. Our findings call for strategic urban planning and building geometry optimization to improve the urban microclimate.</div></div>","PeriodicalId":9273,"journal":{"name":"Building and Environment","volume":"280 ","pages":"Article 113134"},"PeriodicalIF":7.1,"publicationDate":"2025-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143936337","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Constructing Z-scheme heterojunction of AC@g-C3N4/MnOx for effective removal of acetaldehyde in building environment 构建AC@g-C3N4/MnOx z型异质结，有效去除建筑环境中的乙醛

IF 7.1 1区工程技术

Building and Environment Pub Date : 2025-05-06 DOI: 10.1016/j.buildenv.2025.113137

Ziding Bai , Chenhua Wang , Jingjing Pei, Jing He, Junjie Liu

{"title":"Constructing Z-scheme heterojunction of AC@g-C3N4/MnOx for effective removal of acetaldehyde in building environment","authors":"Ziding Bai , Chenhua Wang , Jingjing Pei, Jing He, Junjie Liu","doi":"10.1016/j.buildenv.2025.113137","DOIUrl":"10.1016/j.buildenv.2025.113137","url":null,"abstract":"<div><div>Acetaldehyde is a major odorous compound that reduces perceived indoor air quality; consequently, a high-performance acetaldehyde purification material to facilitate its removal is required. In this study, a novel photocatalyst with a Z-scheme heterojunction of AC@g-C<sub>3</sub>N<sub>4</sub>/MnO<sub>x</sub> (ACNMO) is proposed for efficient removal of acetaldehyde. The acetaldehyde removal efficiency of the AC<sub>12.5</sub> %@g-C<sub>3</sub>N<sub>4</sub>/MnO<sub>x</sub> photocatalyst reached 91.9 % at an acetaldehyde concentration of 3.5 mg/m<sup>3</sup>, which was more effective than that of g-C<sub>3</sub>N<sub>4</sub> (62.5 %). Owing to the Z-scheme heterojunction mechanism, the photoexcited electrons had stronger reducing properties, which in turn produced more <span><math><mrow><mo>·</mo><msubsup><mi>O</mi><mn>2</mn><mo>−</mo></msubsup></mrow></math></span>, significantly improving the acetaldehyde removal performance. In terms of the long-term performance, the acetaldehyde removal of AC<sub>12.5 %</sub>@g-C<sub>3</sub>N<sub>4</sub>/MnO<sub>x</sub> (PA) remained near 90.5 % after 24 h in continuous flow. The byproducts of the photocatalytic reaction did not show significant increase during the reaction, and the characteristic peaks of the samples remained almost unchanged after reaction. In addition, the ACNMO material showed the best realistic odor removal performance in terms of both the subjective odor perception and objective VOCs concentration reduction. The results show that the novel AC@g-C<sub>3</sub>N<sub>4</sub>/MnO<sub>x</sub> material for removing gaseous acetaldehyde has the advantages of a long lifespan, no byproducts, and stable chemical properties. This study provides a novel route for the selective removal of acetaldehyde at low concentrations.</div></div>","PeriodicalId":9273,"journal":{"name":"Building and Environment","volume":"280 ","pages":"Article 113137"},"PeriodicalIF":7.1,"publicationDate":"2025-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144069047","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

The impact of indoor environmental quality on tourist accommodation ratings using guest reviews 室内环境质量对游客住宿评价的影响

IF 7.1 1区工程技术

Building and Environment Pub Date : 2025-05-06 DOI: 10.1016/j.buildenv.2025.113135

Fan Zhang , Karthick Seshadri , Shichao Liu , Matthaios Santamouris

{"title":"The impact of indoor environmental quality on tourist accommodation ratings using guest reviews","authors":"Fan Zhang , Karthick Seshadri , Shichao Liu , Matthaios Santamouris","doi":"10.1016/j.buildenv.2025.113135","DOIUrl":"10.1016/j.buildenv.2025.113135","url":null,"abstract":"<div><div>Guest satisfaction is pivotal for the hospitality industry, yet the role of Indoor Environmental Quality (IEQ) in shaping guest ratings remains inadequately explored. This study addresses this gap by leveraging web-mining, natural language processing and the Three-Factor Theory to analyse guest reviews of Australian hotels and serviced apartments listed on Booking.com. Findings indicate that most IEQ factors—thermal comfort, indoor air quality, luminous environment, acoustics, space, facilities, cleanliness, and layout—function as Basic Factors. While deficiencies in these areas drive dissatisfaction, their adequacy alone does not significantly enhance satisfaction. Notably, exterior view serves as an Excitement Factor in budget accommodations (three stars or below) but transitions to a Basic Factor in luxury settings. Among all IEQ factors, cleanliness, indoor air quality, and acoustics had the strongest negative impacts when underperforming, whereas satisfactory exterior views, cleanliness, and available space positively influenced guest ratings. The COVID-19 pandemic intensified these effects, heightening guest sensitivity to IEQ deficiencies (e.g., poor air quality) while elevating expectations for high-performing attributes like exterior views and available space. Overall, IEQ factors accounted for 32.8 % of customer ratings in budget hotels and 23.9 % in luxury accommodations. The findings underscore the necessity of ensuring satisfactory performance across all IEQ factors, particularly cleanliness and indoor air quality, while strategically enhancing exterior views and spatial configuration to optimize guest satisfaction. These insights provide hospitality managers and policymakers with data-driven guidance for enhancing guest satisfaction and operational resilience in post-pandemic hospitality settings.</div></div>","PeriodicalId":9273,"journal":{"name":"Building and Environment","volume":"280 ","pages":"Article 113135"},"PeriodicalIF":7.1,"publicationDate":"2025-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143929462","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Effect of mechanical ventilation on indoor environment and condensation in high-humidity industrial buildings during winter: field investigation and numerical study 冬季机械通风对高湿工业建筑室内环境及结露的影响：实地调查与数值研究

IF 7.1 1区工程技术

Building and Environment Pub Date : 2025-05-05 DOI: 10.1016/j.buildenv.2025.113133

Yuqing Bai , Chen Zhang , Yi Wang , Zhixiang Cao , Zefang Yang , Chao Zhai , Wenchao Lv , Tongtong Zhao

{"title":"Effect of mechanical ventilation on indoor environment and condensation in high-humidity industrial buildings during winter: field investigation and numerical study","authors":"Yuqing Bai , Chen Zhang , Yi Wang , Zhixiang Cao , Zefang Yang , Chao Zhai , Wenchao Lv , Tongtong Zhao","doi":"10.1016/j.buildenv.2025.113133","DOIUrl":"10.1016/j.buildenv.2025.113133","url":null,"abstract":"<div><div>Ventilation is a common method of exhausting humid air from industrial buildings. However, when outdoor temperature is low during winter, cold ventilation airflow not only reduces temperature but also causes severe condensation in high-humidity industrial buildings. This study investigates the effect of mechanical ventilation on the indoor environment of high-humidity industrial buildings during winter by field investigation and numerical simulation. The results show that three stages of indoor thermal and humid environments exist as <em>ACH</em> increases. When <em>ACH</em>=0, the indoor environment lies in the “Warm-Fog Stage”, where water vapor fails to be effectively removed, leading to significant condensation. For low ventilation rate (<em>ACH</em><5), the cooling effect of cold supply air dominates, causing condensation deterioration. The amount of condensation in the occupied zone is instead 3.3 times that at <em>ACH</em>=0. As <em>ACH</em> increases (5≤<em>ACH</em>≤15), the condensation region reduces as more water vapor is exhausted by ventilation airflow, but the indoor temperature declines to an unacceptable limit, marking the “Cold-Fog Stage”. When the ventilation rate is higher (<em>ACH</em>>15), the cold supply air lifts the condensation region above the occupied zone. However, the indoor temperature is close to the outdoors, resulting in the “Cold-Dry Stage” with poor thermal comfort. In effect, it is difficult to achieve both temperature and condensation requirements in high-humidity plants only through mechanical ventilation. Combined with supply air heating, a lower ventilation rate and higher temperature configuration can provide a relatively energy-efficient strategy.</div></div>","PeriodicalId":9273,"journal":{"name":"Building and Environment","volume":"280 ","pages":"Article 113133"},"PeriodicalIF":7.1,"publicationDate":"2025-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143949072","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Worker-Centric Construction Noise Management: A Systematic Review of Assessment, Monitoring, Modelling, and Control 以工人为中心的建筑噪音管理：评估、监测、建模和控制的系统回顾

IF 7.1 1区工程技术

Building and Environment Pub Date : 2025-05-05 DOI: 10.1016/j.buildenv.2025.113131

Xinyu Huang , Hanbin Luo , Jian Kang , Jiajing Liu

{"title":"Worker-Centric Construction Noise Management: A Systematic Review of Assessment, Monitoring, Modelling, and Control","authors":"Xinyu Huang , Hanbin Luo , Jian Kang , Jiajing Liu","doi":"10.1016/j.buildenv.2025.113131","DOIUrl":"10.1016/j.buildenv.2025.113131","url":null,"abstract":"<div><div>Construction noise is a significant occupational hazard affecting workers’ health, productivity and safety. This systematic review explores the auditory and non-auditory impacts of construction noise, as well as advanced monitoring and modelling practices, and control strategies. A structured search was conducted using keyword combinations across Scopus and Web of Science databases, covering literature from 2014 to 2024. After applying defined inclusion and exclusion criteria, 82 studies were included for full analysis. Noise impacts are assessed through questionnaires and physiological measurements, with prevalence and severity varying by trade, age, gender, health condition, and noise sensitivity. To capture these effects, monitoring uses wearable and Internet of Things-based sensors for real-time exposure tracking, while modelling applies stochastic simulations and machine learning to map current noise distribution and predict both individual and task-specific exposure levels. To mitigate these effects, noise control strategies target the source, transmission path, and receiver, alongside construction planning measures. Reviewed studies show that existing interventions, such as active noise control systems, acoustic metamaterials, hearing protection devices, and multi-objective optimisation planning models, have achieved noise reductions of approximately 5-30 dB(A), depending on the application context. Despite these advances, notable gaps remain, including insufficient consideration of contextual factors in assessment, limited interoperability between monitoring and modelling tools, and a lack of multidimensional evaluations of control measures. This review highlights the need for an integrated, worker-centric framework that dynamically combines noise assessment, monitoring, modelling, and control strategies to reduce construction noise exposure, mitigate impacts and promote safer, healthier work environments.</div></div>","PeriodicalId":9273,"journal":{"name":"Building and Environment","volume":"280 ","pages":"Article 113131"},"PeriodicalIF":7.1,"publicationDate":"2025-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143931993","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Application of multi-zone airflow modeling in the investigation of climate-regulating effects of courtyards 多区气流模拟在庭院气候调节效应研究中的应用

IF 7.1 1区工程技术

Building and Environment Pub Date : 2025-05-05 DOI: 10.1016/j.buildenv.2025.113130

Mosha Zhao , Hartwig M. Künzel , Schew-Ram Mehra

{"title":"Application of multi-zone airflow modeling in the investigation of climate-regulating effects of courtyards","authors":"Mosha Zhao , Hartwig M. Künzel , Schew-Ram Mehra","doi":"10.1016/j.buildenv.2025.113130","DOIUrl":"10.1016/j.buildenv.2025.113130","url":null,"abstract":"<div><div>Courtyard houses, known for their climate-responsive design, have evolved unique characteristics tailored to local climates and cultures. Their climate-regulating effects on adjacent spaces can enhance indoor hygrothermal conditions, building energy performance, and occupant thermal comfort. However, conventional thermal building simulations often treat courtyards’ hygrothermal conditions as identical to outdoor environments, overlooking dynamic interactions between open or semi-open courtyards and indoor spaces. This simplification risks underestimating their benefits. To address this gap, this study employs multi-zone airflow modeling integrated with WUFI®Plus to assess its performance in investigating the climate-regulating effects of courtyards based on case studies. Two traditional courtyard houses in Tongren, China, under summer (unoccupied) and winter (occupied) conditions are investigated. By incorporating dynamic, user-dependent ventilation behaviors, the model achieves strong alignment with monitored data, with Normalized Mean Bias Errors below 10 %, Coefficient of Variation of Root-Mean-Square Errors below 20 %, and Coefficients of Determination for air temperature exceeding 0.75. Results demonstrate the model’s capacity to accurately predict air temperature in courtyard spaces and adjacent rooms, particularly in warm periods when heat mitigation is significant. During colder periods, the model's ability to estimate air change rates offers a valuable advantage over conventional thermal building simulation methods for naturally ventilated buildings.</div></div>","PeriodicalId":9273,"journal":{"name":"Building and Environment","volume":"280 ","pages":"Article 113130"},"PeriodicalIF":7.1,"publicationDate":"2025-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143935607","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Understanding the environmental impacts of residential water consumption in Brazil: Integrating the building stock with life cycle assessment 了解巴西住宅用水对环境的影响：将建筑存量与生命周期评估相结合

IF 7.1 1区工程技术

Building and Environment Pub Date : 2025-05-05 DOI: 10.1016/j.buildenv.2025.113085

Igor Catão Martins Vaz, Enedir Ghisi, Taylana Piccinini Scolaro, Aline Schaefer

{"title":"Understanding the environmental impacts of residential water consumption in Brazil: Integrating the building stock with life cycle assessment","authors":"Igor Catão Martins Vaz, Enedir Ghisi, Taylana Piccinini Scolaro, Aline Schaefer","doi":"10.1016/j.buildenv.2025.113085","DOIUrl":"10.1016/j.buildenv.2025.113085","url":null,"abstract":"<div><div>Household water consumption is of great interest due to its impact on water resources and the overall sustainability of buildings. In Brazil, even though households do not represent the most significant national water consumption among the different sectors, such a typology has several complexities for water supply, including long distribution lines, high loss rates, and the need for gauging and guaranteeing potability. Therefore, understanding the impact of water consumption in dwellings is of national interest. This study used top-down and bottom-up approaches to assess and characterise water consumption in dwellings based on Life Cycle Assessment (LCA) modelling. The main results include the differentiation of the impact concerning residential water consumption for the different regions of Brazil, ranging from 42 to 231 kgCO<sub>2-eq</sub>/dwelling/year. For the single score indicator, which aggregates multiple environmental impacts into a single weighted value, greater relevance is given to water scarcity. Comparisons with energy consumption also helped to identify the relevance of phase B7 (operational water consumption phase) in the Whole Building Life Cycle Assessment (WBLCA) scope. Finally, the bottom-up analysis showed the need to reduce the water consumption of specific appliances. Adaptations to reduce shower water consumption and use rainwater to supply water to non-potable uses are essential strategies for reducing the final impact of residential buildings in the context of WBLCA. While the method’s replicability supports its global use, further research is necessary to explore its implications for non-residential buildings, fostering broader insights into sustainable practices.</div></div>","PeriodicalId":9273,"journal":{"name":"Building and Environment","volume":"279 ","pages":"Article 113085"},"PeriodicalIF":7.1,"publicationDate":"2025-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143904054","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

A fit-for-purpose framework for urban occupancy modeling: Theory and a case study 一个符合目的的城市占用模型框架：理论与案例研究

IF 7.1 1区工程技术

Building and Environment Pub Date : 2025-05-04 DOI: 10.1016/j.buildenv.2025.113113

Yiting Yang, Bing Dong

{"title":"A fit-for-purpose framework for urban occupancy modeling: Theory and a case study","authors":"Yiting Yang, Bing Dong","doi":"10.1016/j.buildenv.2025.113113","DOIUrl":"10.1016/j.buildenv.2025.113113","url":null,"abstract":"<div><div>This study proposes a novel Level of Detail (LoD) framework for urban occupancy modeling to address the significant uncertainties that occupancy patterns introduce in Urban Building Energy Modeling (UBEM). We developed a systematic framework that integrates space-based and person-based approaches to provide comprehensive guidance for selecting appropriate modeling methods. First, we carry out a thorough literature review and systematically analyze and map data sources and modeling approaches to various levels of detail. Next, we assess the framework's practical application through a comprehensive case study in an urban environment, proving its ability to help optimize occupancy modeling choices. Our findings demonstrate that for district energy planning, both LoD S0 and S1 are recommended; for district energy system design, LoD S2 proves optimal. Building performance benchmarks and energy retrofit strategy is best fitted with LoD S3, while energy storage and renewable systems design benefits most from LoD P0. Building-level energy system optimization requires LoD S3, P0, or P1, depending on available resources. Framework validation through urban case studies confirms its effectiveness in optimizing occupancy modeling choices for various urban energy applications.</div></div>","PeriodicalId":9273,"journal":{"name":"Building and Environment","volume":"280 ","pages":"Article 113113"},"PeriodicalIF":7.1,"publicationDate":"2025-05-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143949070","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Comparison of open, flexible, and enclosed learning spaces – teaching staff’s experiences and activity sound exposure 开放、灵活和封闭学习空间的比较——教学人员的经验和活动声音暴露

IF 7.1 1区工程技术

Building and Environment Pub Date : 2025-05-04 DOI: 10.1016/j.buildenv.2025.113125

Jenni Radun , Jukka Keränen , Sanna Rantanen , Marjaana Veermans , Valtteri Hongisto

{"title":"Comparison of open, flexible, and enclosed learning spaces – teaching staff’s experiences and activity sound exposure","authors":"Jenni Radun , Jukka Keränen , Sanna Rantanen , Marjaana Veermans , Valtteri Hongisto","doi":"10.1016/j.buildenv.2025.113125","DOIUrl":"10.1016/j.buildenv.2025.113125","url":null,"abstract":"<div><div>Learning spaces can be categorized into open, flexible, and enclosed spaces. Enclosed space enables teaching one 20–30 students’ group while open space enables teaching several groups in the space simultaneously. Flexible spaces offer a possibility for closing and opening the space. This study examined whether teaching staff’s experience and sound exposure differ in learning space types. The questionnaire responses from primary schools’ teaching staff working in enclosed space (enclosed environment group, <em>N</em> = 267) were compared with teaching staff working in flexible or open spaces (innovative environment group, <em>N</em> = 94) (total <em>N</em> = 361). Additionally, the activity sound pressure levels (SPLs) were measured in 20 schools’ four learning spaces for five workdays. The innovative environment group was less satisfied with sound environment, amount of space, functionality of transit routes and more disturbed by environmental factors than the enclosed environment group. Almost a third (29 %) of the innovative environment group perceived that their learning space did not support the pedagogical methods they wanted to use, while this was 15 % in the enclosed environment group. The learning environment groups did not differ in noise annoyance related to different places in school, nor the prevalence of vocal symptoms. The activity SPLs in the open learning spaces were lower or similar than in the enclosed learning spaces but did not differ between enclosed and flexible learning spaces. Negative experience in innovative learning environments is not related to higher noise levels, but to environmental distractions, therefore, open learning spaces’ design should always consider cognitive ergonomics along with action possibilities.</div></div>","PeriodicalId":9273,"journal":{"name":"Building and Environment","volume":"280 ","pages":"Article 113125"},"PeriodicalIF":7.1,"publicationDate":"2025-05-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143931994","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Enhancing dynamic metabolic rate estimation using calibration models for portable devices 使用便携式设备校准模型增强动态代谢率估计

IF 7.1 1区工程技术

Building and Environment Pub Date : 2025-05-04 DOI: 10.1016/j.buildenv.2025.113128

Yuchun Zhang , Xiwen Feng , Sheng Zhang , Naiping Gao , Zhaosong Fang , Zhang Lin

{"title":"Enhancing dynamic metabolic rate estimation using calibration models for portable devices","authors":"Yuchun Zhang , Xiwen Feng , Sheng Zhang , Naiping Gao , Zhaosong Fang , Zhang Lin","doi":"10.1016/j.buildenv.2025.113128","DOIUrl":"10.1016/j.buildenv.2025.113128","url":null,"abstract":"<div><div>Regarding thermal comfort and safety, metabolic rate is crucial for understanding human responses to environmental heat. Outdoor field experiments were conducted to investigate the variations in M measurement methods across different activities, including five walking speed levels: 1.2 m/s, 1.4 m/s, 1.6 m/s, 1.8 m/s, and 2.0 m/s. with This study presents a significant advancement in the accurate estimation of metabolic rates using portable devices at common walking speeds. By introducing correction formulas, the accuracy of metabolic rate measurements was improved, thereby enhancing thermal comfort research. The key findings included the consistent overestimation of metabolic rates by heart-rate-based methods during sedentary phases by approximately 1.5 met, and the underestimation by ISO 7730 and ASHRAE standards during walking phases by approximately 0.5 met at higher speeds. The conversion formulas between the ECG-based and PPG-based devices demonstrate high compatibility. The developed correction models reduced the deviations in the walking stages to <15% and aligned with the ISO 8996:2004 guidelines. Moreover, the predictive models for activity transitions exhibited high R² values of approximately 1 and RMSE below 0.2. These findings have practical implications for improving thermal comfort assessments, urban planning, and guidelines for outdoor safety and wellbeing.</div></div>","PeriodicalId":9273,"journal":{"name":"Building and Environment","volume":"280 ","pages":"Article 113128"},"PeriodicalIF":7.1,"publicationDate":"2025-05-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143935604","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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