Article
Construction & Building Technology
Yenhsiang Huang, Xinyu Jia, Yingxin Zhu, Deyin Zhang, Borong Lin
Summary: The study found that higher terminal buildings are more affected by solar radiation, and wind seepage will increase air conditioning loads. Passengers generally do not believe that large terminal indoor spaces need to be too tall. In order to achieve a better acoustic environment, it is recommended that the floor height be less than 8 meters.
JOURNAL OF BUILDING ENGINEERING
(2021)
Article
Construction & Building Technology
Luisa Pastore, Marilyne Andersen
Summary: Research has shown that building and facade design significantly impact occupants' perceived comfort and satisfaction in the workplace, even when environmental factors are the same. The aesthetic and emotional contribution of building design influences comfort and satisfaction levels. Tolerance towards IEQ factors is strongly correlated with ratings of space and facade.
JOURNAL OF BUILDING ENGINEERING
(2022)
Article
Construction & Building Technology
Mohamed Elsayed, Sofie Pelsmakers, Lorenza Pistore, Rail Castano-Rosa, Piercarlo Romagnoni
Summary: Post Occupancy Evaluation (POE) is a process aimed at assessing the performance of buildings after occupation, including energy efficiency, indoor environmental quality, and occupant satisfaction. However, there is a lack of consistency in POE practices in residential buildings in the EU, making it difficult to compare and replicate the results and methods.
BUILDING AND ENVIRONMENT
(2023)
Article
Construction & Building Technology
Miguel Martinez-Comesana, Ana Ogando-Martinez, Francisco Troncoso-Pastoriza, Javier Lopez-Gomez, Lara Febrero-Garrido, Enrique Granada-Alvarez
Summary: Real-time estimation of indoor environmental conditions in a building was achieved using optimized neural networks without the need for monitoring or human intervention. A case study conducted in a research center in Spain showed small relative errors in the interpolated values, validating the effectiveness of the methodology.
BUILDING AND ENVIRONMENT
(2021)
Article
Construction & Building Technology
Suyeon Bae, Caren S. Martin, Abimbola O. Asojo
Summary: This study found that occupant satisfaction with adjustability was lower, and improvements in acoustic and privacy conditions had a significant impact on the positive experience in built environments. Dissatisfaction with thermal comfort, furnishings, and privacy led to dissatisfaction with the primary workspace.
BUILDING RESEARCH AND INFORMATION
(2021)
Article
Construction & Building Technology
Murat Mustafa, Malcolm J. Cook, Robert S. McLeod
Summary: This study investigates the ability of mechanical ventilation with heat recovery and natural ventilation systems to maintain thermal comfort in an auditorium with high internal heat gains and tiered seating. The results show that a thermally comfortable environment can be achieved for up to 80% of the year using mixed mode ventilation and intelligent design strategies. Natural ventilation mode also provides increased fresh air supply capacity, which is important for mitigating airborne viral transmission.
BUILDING AND ENVIRONMENT
(2023)
Article
Construction & Building Technology
Jeongyoon Oh, Wingyin Wong, Daniel Castro-Lacouture, JeeHee Lee, Choongwan Koo
Summary: Previous studies have focused on improving indoor environmental quality (IEQ) through various interventions, but few have investigated what motivates individuals to seek better IEQ. This study examines how occupants' perceptions of IEQ can influence their behavioral changes in improving IEQ. A living-lab-based empirical study conducted in a green building in Hong Kong showed that objective IEQ information can help previously indifferent occupants understand and create a more comfortable working environment. This study combines data-driven IEQ reports, questionnaire surveys, and statistical analysis to provide insights on improving occupants' perceptions and motivating participation for IEQ improvement.
JOURNAL OF BUILDING ENGINEERING
(2023)
Review
Chemistry, Multidisciplinary
Dadi Zhang, Kwok-Wai Mui, Ling-Tim Wong
Summary: In the past two decades, there has been a significant increase in research on indoor environmental quality (IEQ) assessment due to advances in data collection and analytical techniques. This study examines and summarizes the IEQ models proposed in the literature from 2001 to 2022, identifying ten key questions related to indicator selection, data collection, analysis methods, interpretation, and implication. The answers to these questions provide practical instructions for the development of an improved, standardized, and repeatable IEQ assessment model.
APPLIED SCIENCES-BASEL
(2023)
Article
Construction & Building Technology
Miguel Martinez-Comesana, Pablo Eguia-Oller, Javier Martinez-Torres, Lara Febrero-Garrido, Enrique Granada-alvarez
Summary: This paper presents an interpolation model based on an optimized extreme gradient boosting algorithm to estimate indoor temperature, relative humidity, and CO2 concentration inside buildings. The methodology, applied in a research center in north-western Spain, shows promising results with relative errors below 6% for temperature and relative humidity, and below 10% for CO2 levels.
SUSTAINABLE CITIES AND SOCIETY
(2022)
Article
Construction & Building Technology
Toby Cheung, Stefano Schiavon, Lindsay T. Graham, Kwok Wai Tham
Summary: Understanding occupants' satisfaction with IEQ is crucial in improving indoor environmental quality. The study in Singaporean commercial buildings revealed high satisfaction with flexibility, lighting, and cleanliness, but dissatisfaction with sound privacy, personal control, and temperature. Major contributors to thermal dissatisfaction were identified as insufficient air movement and overcooled workspaces, while occupants in open plan offices were unhappy with noise from nearby colleagues. Additionally, several IEQ variables were not individually significant to overall workspace satisfaction, but their impact was substantial when merged into larger environmental factors.
BUILDING AND ENVIRONMENT
(2021)
Article
Construction & Building Technology
Yi Ju, Zhe Wang, Xinyuan Ju, Bin Cao, Chen Chen, Borong Lin
Summary: Understanding occupancy patterns in university libraries is essential for energy system planning, energy model calibration, and occupant-centric operations. This study used seat reservation data to analyze the occupancy patterns and mobility behaviors in four university libraries over a semester. The findings highlight the importance of factors such as semester schedules, campus accessibility, privacy, and proximity to neighboring users in determining seat selection and library usage.
ENERGY AND BUILDINGS
(2023)
Article
Green & Sustainable Science & Technology
Chee Keong Khoo, Xin Li, Jianxiang Huang
Summary: This paper describes a post-occupancy evaluation study on self-reported green behaviors in Hong Kong's public housing estates, finding that green-certified housing estates partially induced energy-saving behaviors, but not water saving or waste recycling, nor does it enhance satisfaction or green awareness. A certification alone is insufficient to induce behavioral changes, rather, efforts should be invested in conveying the green message, public education, and appropriate fiscal incentives.
Article
Construction & Building Technology
Saul Nkini, Erik Nuyts, Gabriel Kassenga, Ombeni Swai, Griet Verbeeck
Summary: This study evaluated the occupants' satisfaction rate and control over indoor environmental performance in 2 certified green office buildings and 15 non-green office buildings in Dar es Salaam. The results show that overall occupants were quite satisfied in all buildings, but there were some differences in air movement, air quality, lighting control, noise levels, and glare from artificial light.
BUILDING AND ENVIRONMENT
(2022)
Article
Construction & Building Technology
Toby Cheung, Lindsay T. Graham, Stefano Schiavon
Summary: This study examines the impact of personal factors on occupant satisfaction with indoor environmental quality (IEQ) and finds that job satisfaction and life satisfaction are closely related to IEQ satisfaction.
BUILDING AND ENVIRONMENT
(2022)
Article
Chemistry, Analytical
Stefano Riffelli
Summary: Indoor environmental quality has a significant impact on health and productivity. This study proposes a wireless logger for monitoring indoor environmental quality. It combines objective and subjective approaches to assess comfort. The findings suggest that thermal comfort and indoor air quality are the most relevant elements in a university classroom setting.
Article
Construction & Building Technology
Emilie Nault, Thomas Jusselme, Sergi Aguacil, Marilyne Andersen
BUILDING AND ENVIRONMENT
(2020)
Article
Construction & Building Technology
Claudia Moscoso, Kynthia Chamilothori, Jan Wienold, Marilyne Andersen, Barbara Matusiak
Summary: This study examined the impact of different window sizes on the perception of small and large spaces in high latitudes through virtual reality. The results showed that larger windows led to more positively evaluated spaces, and there were significant differences in window size preferences among different space types.
Article
Construction & Building Technology
Giorgia Chinazzo, Jan Wienold, Marilyne Andersen
Summary: This study examines the combined effect of indoor temperature and colored glazing on visual perception of daylight. Results show that temperature significantly influences the evaluation of visual environment and light color perception. Additionally, neutral glazing is preferred over colored glazing, while orange glazing is associated with the most relaxing and warmest daylight.
Review
Behavioral Sciences
Forrest S. Webler, Manuel Spitschan, Russell G. Foster, Marilyne Andersen, Stuart N. Peirson
CURRENT OPINION IN BEHAVIORAL SCIENCES
(2019)
Article
Construction & Building Technology
Claudia Moscoso, Kynthia Chamilothori, Jan Wienold, Marilyne Andersen, Barbara Matusiak
Summary: This study investigated regional differences in the perception of spaces with varying window size, space size, spatial context, and sky type, revealing significant differences between participants in different latitudes within Europe, indicating that even small variations in latitude can affect spatial perception.
Article
Construction & Building Technology
Parag Rastogi, Mohammad Emtiyaz Khan, Marilyne Andersen
Summary: This paper proposes seven tests to check if an emulator is a suitable replacement for simulation in practice, covering accuracy, speed, generalisability, and ease of use. By setting up an emulator-based workflow and providing emulator cases based on linear and non-linear regression, practitioners are enabled to reliably conduct performance assessment for buildings.
JOURNAL OF BUILDING PERFORMANCE SIMULATION
(2022)
Article
Construction & Building Technology
K. Chamilothori, J. Wienold, C. Moscoso, B. Matusiak, M. Andersen
Summary: This study investigated the perception of facade and daylight patterns across Europe by replicating a virtual reality experiment in Norway, Switzerland, and Greece. The results showed that only the facade geometry affected the studied attributes, and regional effects were observed only for reported brightness.
Editorial Material
Construction & Building Technology
Won Hee Ko, Stefano Schiavon, Sergio Altomonte, Marilyne Andersen, Ayesha Batool, William Browning, Galen Burrell, Kynthia Chamilothori, Ying-Chieh Chan, Giorgia Chinazzo, Jens Christoffersen, Nancy Clanton, Christopher Connock, Timur Dogan, Billie Faircloth, Luis Fernandes, Lisa Heschong, Kevin W. Houser, Mehlika Inanici, Alstan Jakubiec, Anjali Joseph, Caroline Karmann, Michael Kent, Kyle Konis, Iason Konstantzos, Kera Lagios, Linda Lam, Florence Lam, Eleanor Lee, Brendon Levitt, Wenting Li, Piers MacNaughton, Ahoo Malekafzali Ardakan, John Mardaljevic, Barbara Matusiak, Werner Osterhaus, Steffen Petersen, Matt Piccone, Clotilde Pierson, Brent Protzman, Tarek Rakha, Christoph Reinhart, Siobhan Rockcastle, Holly Samuelson, Luis Santos, Azadeh Sawyer, Stephen Selkowitz, Eloise Sok, Jakob Stromann-Andersen, William C. Sullivan, Irmak Turan, Gayathri Unnikrishnan, Will Vicent, Dan Weissman, Jan Wienold
Article
Chemistry, Analytical
Forrest Simon Webler, Manuel Spitschan, Marilyne Andersen
Summary: This paper presents a novel reconstruction algorithm, SpecRA, that adapts based on the relative rarity of a signal compared to previous observations. By leveraging a data-driven approach, SpecRA learns optimal encoder-array sensitivities for improved spectral reconstruction. The algorithm exploits low-dimensional patterns mined from online repositories, allowing for spectral reconstruction from as few as p = 2 channels. The performance of SpecRA is largely independent of signal complexity and outperforms conventional approaches, providing a framework for fourth paradigm spectral sensing.
Article
Construction & Building Technology
Caroline Karmann, Giorgia Chinazzo, Andreas Schiller, Krishna Manwani, Jan Wienold, Marilyne Andersen
Summary: Providing both glare protection and a view to the outside through fabric shading devices is challenging, as these two objectives require conflicting material properties. A study on different fabric types showed that fabrics with low openness factors (OF) provided glare protection but compromised view clarity, while charcoal-colored fabrics with high OF had lower glare protection but better view quality. The results also highlighted the importance of allowing occupants to control the shading height for improved daylight levels and view out.
BUILDING AND ENVIRONMENT
(2023)
Article
Construction & Building Technology
Clotilde Pierson, Marielle P. J. Aarts, Marilyne Andersen
Summary: With the increasing recognition of ipRGC-influenced light (IIL) responses, there has been a flourishing of design applications related to these responses. Lighting simulations are commonly used to compare design options and optimize lighting conditions for building occupants. However, as our IIL responses are dependent on the spectral characteristics of light, spectral simulations are required. This study aims to validate two spectral simulation tools, ALFA and Lark, for studying indoor spaces in relation to occupants' IIL responses. The results show that Lark is more accurate than ALFA in most cases, with a simulation error within the +/- 20% range for point-in-time indicators. When considering the time dynamics of light exposure, at least 9% of the daylight exposures simulated for a 6-hour period in Lark result in a significant error.
JOURNAL OF BUILDING PERFORMANCE SIMULATION
(2023)
Article
Construction & Building Technology
Sneha Jain, Jan Wienold, Maxime Lagier, Andreas Schueler, Marilyne Andersen
Summary: This study investigates the influence of spectral alterations of the sun disc on glare perception when seen behind different glazing. The findings show that participants were more likely to experience discomfort under blue-tinted glazing compared to color-neutral glazing, contradicting the predictions of glare metrics. Possible explanations for this phenomenon are discussed.
BUILDING AND ENVIRONMENT
(2023)
Article
Construction & Building Technology
S. L. Hartmeyer, M. Andersen
Summary: Light dosimetry aims to measure personal light exposure with wearable sensors, which is a complex multistep procedure. Various measurement and analysis methods have been used in previous studies, leading to difficulties in comparing and interpreting the results. To improve the quality and comparability of light-dosimetry research, a framework with consensus guidelines is needed. This review provides an overview of metrics for quantifying light-dosimetry data and proposes considerations for data quantification and research strategies for future studies.
LIGHTING RESEARCH & TECHNOLOGY
(2023)
Article
Construction & Building Technology
Geraldine Quek, Sneha Jain, Caroline Karmann, Clotilde Pierson, Jan Wienold, Marilyne Andersen
Summary: When studying discomfort glare, researchers often rely on a single questionnaire item to evaluate user responses. However, it is uncertain whether the choice of questionnaire item affects user responses and leads to inconsistencies between studies. This study compared different glare questionnaire items in three independent user studies and found strong correlations and consistency among the results, suggesting that these tested questionnaire items can be used to consistently evaluate discomfort glare.
LIGHTING RESEARCH & TECHNOLOGY
(2023)
Article
Construction & Building Technology
S. L. Hartmeyer, F. S. Webler, M. Andersen
Summary: This article reviews the methodologies used in non-visual light-dosimetry studies and proposes considerations that should be included in a light-dosimetry framework. The importance of establishing a consensus framework and addressing important issues in future research is emphasized.
LIGHTING RESEARCH & TECHNOLOGY
(2023)
Article
Construction & Building Technology
Parth Bansal, Steven Jige Quan
Summary: This study investigates the relationship between urban form and canopy layer urban heat island (CUHI) using a relatively large sample of microclimate sensors in Seoul, Korea. The study compares different statistical models and finds that the spatially explicit gradient boosting decision tree (GBDT) model has the highest accuracy. The study also shows that the effect of urban form on CUHI varies at different time instances during the day. These findings provide valuable insights for planners to understand the complexity of urban climate and reduce CUHI magnitude.
BUILDING AND ENVIRONMENT
(2024)
Article
Construction & Building Technology
Miaomiao Liu, Salah Almazmumi, Pinlu Cao, Carlos Jimenez-bescos, John Kaiser Calautit
Summary: Windcatchers provide effective low-energy ventilation and summer passive cooling in temperate climates. However, their use in winter is limited due to significant ventilation heat loss and potential discomfort. This study evaluates the applicability of windcatchers in low-temperature conditions, highlighting the need for control strategies to reduce over-ventilation and the integration of heat recovery or thermal storage to enhance winter thermal conditions.
BUILDING AND ENVIRONMENT
(2024)
Review
Construction & Building Technology
Behrouz Nourozi, Aneta Wierzbicka, Runming Yao, Sasan Sadrizadeh
Summary: This article presents a systematic review of ventilation solutions in hospital wards, aiming to enhance pathogen removal performance while maintaining patient and healthcare staff comfort using air-cleaning techniques. The study reveals the importance of proper ventilation systems in reducing infection risk and adverse effects of cross-contamination.
BUILDING AND ENVIRONMENT
(2024)
Article
Construction & Building Technology
Zhen Yang, Weirong Zhang, Hongkai Liu, Weijia Zhang, Mingyuan Qin
Summary: The study examines the influence of personalized local heating on the thermal comfort of occupants in old residential buildings. The findings reveal that personalized local heating can increase the overall thermal sensation of occupants, but only a few methods are effective in enhancing thermal comfort. The chosen heating methods and background temperature affect the participants' selection of heating parts.
BUILDING AND ENVIRONMENT
(2024)
Article
Construction & Building Technology
Hong Cheng, Dan Norback, Huilin Zhang, Liu Yang, Baizhan Li, Yinping Zhang, Zhuohui Zhao, Qihong Deng, Chen Huang, Xu Yang, Chan Lu, Hua Qian, Tingting Wang, Ling Zhang, Wei Yu, Juan Wang, Xin Zhang
Summary: The home environment and sick building syndrome (SBS) symptoms in five southern Chinese cities have been studied over time. The study found a decrease in asthma prevalence and an increase in allergic rhinitis. Cockroaches, rats, mice, mosquitoes or flies were identified as consistent biological risk factors for SBS symptoms, while redecoration, buying new furniture, and traffic air pollution were identified as other risk factors.
BUILDING AND ENVIRONMENT
(2024)
Article
Construction & Building Technology
Chaojie Xing, Zhengtao Ai, Zhiwei Liu, Cheuk Ming Mak, Hai Ming Wong
Summary: This study experimentally investigated the emission characteristics of droplets around the mouth during dental treatments. The results showed that the peak mass fraction of droplets occurs within the size range of 20 μm to 100 μm, and droplets with a diameter less than 200 μm account for over 80% of the mass fraction. The dominant emission direction of droplets is towards the dummy's head and chest, forming an approximately cone shape.
BUILDING AND ENVIRONMENT
(2024)
Article
Construction & Building Technology
Zhijian Liu, Zhe Han, Lina Hu, Chenxing Hu, Rui Rong
Summary: This study compared the effects of different respiratory behaviors on the distribution of aerosols in a ward and the risk of infection for healthcare workers using numerical simulation. It was found that talking in the ward significantly increased aerosol concentrations, particularly short periods of talking. Wards designed with side-supply ventilation had lower overall infection risk. Talking alternately between healthcare workers and patients slightly extended the impact time of aerosols.
BUILDING AND ENVIRONMENT
(2024)
Article
Construction & Building Technology
Yan Yan, Mengyuan Kang, Haodong Zhang, Zhiwei Lian, Xiaojun Fan, Chandra Sekhar, Pawel Wargocki, Li Lan
Summary: In a high-density city, opening windows for sleep may lead to increased indoor temperature, higher PM2.5 concentration, and noise disturbance, which can negatively impact sleep quality.
BUILDING AND ENVIRONMENT
(2024)
Article
Construction & Building Technology
Yan Bai, Liang Liu, Kai Liu, Shuai Yu, Yifan Shen, Di Sun
Summary: This study developed a non-intrusive personal thermal comfort model using machine learning techniques combined with infrared facial recognition. The results showed that the ensemble learning models perform better than traditional models, and the broad learning model has a higher prediction precision with lower computational complexity and faster training speed compared to deep neural networks. The findings provide a reference for optimizing building thermal environments.
BUILDING AND ENVIRONMENT
(2024)
Article
Construction & Building Technology
Yue Lei, Zeynep Duygu Tekler, Sicheng Zhan, Clayton Miller, Adrian Chong
Summary: Mixed-mode ventilation is a promising solution for achieving energy-efficient and comfortable indoor environments. This study found that occupants can thermally adapt when switching between natural ventilation (NV) and air-conditioning (AC) modes within the same day, with the adaptation process stabilizing between 35 to 45 minutes after the mode switch. These findings are important for optimizing thermal comfort in mixed-mode controls, considering the dynamic nature of thermal adaptation.
BUILDING AND ENVIRONMENT
(2024)
Article
Construction & Building Technology
Nan Mo, Jie Han, Yingde Yin, Yelin Zhang
Summary: This study develops a method based on the LCZ framework for a comprehensive evaluation of urban-scale heat island effects, considering the impact of geographic factors on LST. The results show that Guilin's geomorphological conditions lead to abnormal heat island effects during winter, and the cooling effects of mountains and water bodies vary seasonally in different built areas, with LCZ 2 exhibiting the strongest cooling effect.
BUILDING AND ENVIRONMENT
(2024)
Article
Construction & Building Technology
Tunga Salthammer
Summary: Monitoring the potential formaldehyde emission of wood-based materials through test chamber investigations has significantly contributed to reducing indoor formaldehyde concentrations. However, the different methodologies used in these procedures prevent direct result comparison. Empirical models for converting formaldehyde steady-state concentrations based on temperature, humidity, air change rate, and loading were developed in the 1970s and have been modified to accommodate the development of lower-emitting materials. Formaldehyde emissions from wood-based materials are complex and require nonlinear regression tools for mathematical analysis.
BUILDING AND ENVIRONMENT
(2024)
Article
Construction & Building Technology
Katarina Stebelova, Katarina Kovacova, Zuzana Dzirbikova, Peter Hanuliak, Tomas Bacigal, Peter Hartman, Andrea Vargova, Jozef Hraska
Summary: This study investigated the impact of reduced short-wavelength light on the hormone melatonin metabolite 6-sulfatoxymelatonin (u-sMEL) and examined the association between previous day's light exposure and u-sMEL. It was found that reducing short-wavelength light during the day did not change the concentration of u-sMEL. Personal photopic illuminance was positively correlated with u-sMEL in the reference week. The illuminance had a significant impact on u-sMEL, as shown by the evaluation of the mean of all three urine samples. However, this correlation was not found in the experimental week.
BUILDING AND ENVIRONMENT
(2024)
Article
Construction & Building Technology
Ruoxin Xiong, Ying Shi, Haoming Jing, Wei Liang, Yorie Nakahira, Pingbo Tang
Summary: This study proposes a data-model integration method to identify and calibrate uncertainties in machine learning models, leading to improved thermal perception predictions. The method utilizes the Multidimensional Association Rule Mining algorithm to identify biased human responses and enhances prediction accuracy and reliability. The study also evaluates different calibration techniques and discovers their potential in enhancing prediction reliability.
BUILDING AND ENVIRONMENT
(2024)
Article
Construction & Building Technology
Beichao Hu, Zeda Yin, Abderrachid Hamrani, Arturo Leon, Dwayne McDaniel
Summary: This paper introduces an innovative super-resolution approach to model the air flow and temperature field in the cold aisle of a data center. The proposed method reconstructs a high-fidelity flow field by using a low-fidelity flow field, significantly reducing the computational time and enabling real-time prediction.
BUILDING AND ENVIRONMENT
(2024)