Article
Environmental Sciences
Anuch Durongphan, Jarun Rungruang, Eakkapong Nitimanee, Benjaporn Panichareon
Summary: In 2018 and 2019, formaldehyde levels in the gross anatomy laboratory were found to exceed international standards. By improving ventilation and increasing the area of dissection tables, we successfully reduced formaldehyde concentrations and achieved the safety standards.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Chemistry, Multidisciplinary
Guodong Yuan, Huiwen Yuan, Yingfeng Zhao, Zhi Liang
Summary: In modern society, indoor air pollution is a potential health risk associated with many diseases. Wooden furniture, as the most popular indoor furniture, is a major source of indoor air pollution. This study used thermal desorption-gas chromatography-mass spectrometry to detect the release of organic compounds from wood panels and determine their release kinetics. The findings provide a theoretical basis for targeted pollution prevention and control.
Review
Instruments & Instrumentation
Teresa Vera, F. Villanueva, L. Wimmerova, E. I. Tolis
Summary: Understanding the sources and effects of volatile organic compounds in indoor environments is crucial for protecting human health, thus correct assessment and monitoring of this pollutant are necessary for implementing preventive measures.
APPLIED SPECTROSCOPY REVIEWS
(2022)
Article
Chemistry, Inorganic & Nuclear
Kai Zhang, Wenhuan Wang, Honglei Ding, Weiguo Pan, Junchi Ma, Yuetong Zhao, Jie Song, Ziyi Zhang
Summary: In this study, high-efficiency CeO2-SMO-H and Ag-SMO-H catalysts were prepared for acetone degradation. The synergistic effect of CeO2 and Ag with acid-etched SMO support contributes to the excellent activity of the catalyst. The surface and lattice defects formed by acid etching optimize the dispersibility of Ag and CeO2 nanoparticles. A new catalyst modification method using acid-etched SmMn2O5 as support has been developed for the catalytic degradation of acetone.
INORGANIC CHEMISTRY
(2023)
Article
Environmental Sciences
Taimoor Khan, Shahid Masood Shah, Sabaz Ali Khan, Amjad Hassan, Abdul Rehman Khan, Gulzar Akhtar, Hifza Imtiaz, Yasar Sajjad
Summary: The combined effect of formaldehyde and benzene on the antioxidative response of indoor plants was evaluated in this study. The results showed that the combined application of these two organic pollutants significantly affected the physiology of indoor plants. Overall, the impact of indoor pollution on plants is a cause for concern.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Construction & Building Technology
Wenlei Heng, Ziyun Wang, Yuling Wu
Summary: The experimental platform investigated the thermal storage capacity of phase change floor through different operation schemes and circulating water flow rates. The results demonstrated that the night operation scheme with appropriate water flow rate can achieve energy saving and peak regulation.
ENERGY AND BUILDINGS
(2021)
Article
Environmental Sciences
Baoping Zhang, Zhibin Xia, Xu Jiang, Yang Yuan, Chuntao Yin, Tianming Chen
Summary: This investigation explored the association between indoor environmental factors and childhood asthma in Yancheng, China. The study found that breastfeeding, family history of asthma, passive smoking, and household renovation or introduction of new furniture were associated with childhood recurrent asthma. Benzene and formaldehyde concentrations were higher in homes of children with asthma, and were strongly correlated with increased risk of recurrent asthma. The study indicates the importance of home environment in regulating the occurrence of childhood asthma, and suggests actions against indoor environmental risk factors to prevent recurrent asthma among children.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Energy & Fuels
Su-Gwang Jeong, Jeong Eun Heo, Sang-Yeon Choi, Sumin Kim
Summary: Phase change materials (PCMs), such as n-docosane and activated carbon (AC), were combined to form a heat-storage aggregate (D-HSA). This aggregate was injected into a Poly vinyl chloride container and applied to a dry floor heating system. The thermal performance and energy consumption of the system were evaluated.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Engineering, Environmental
Bin Zhu, Qi-Wei Li, Ye-Cheng Li, Ya-Qiang Xia, Jing -Lin Liu, A-Min Zhou, Xiao-Min Zhang
Summary: Plasma-catalysis technique is a promising approach to control air pollution caused by volatile organic compounds (VOCs). Perovskite-type oxides have excited much interest in constructing plasma-catalytic system for the oxidation removal of VOCs owing to their flexible electronic structure, alterable geometry, unique catalytic properties and high stability.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Thermodynamics
Zhongbao Liu, Ziyan Wei, Ruonan Teng, Han Sun, Zhipeng Qie
Summary: With the development of the economy, improving energy efficiency and saving energy have become important issues. Combining phase change heat storage material with floor radiation heating is an effective way to improve energy utilization efficiency. This paper introduces a composite phase change heat storage material used in radiant floor heating and conducts experiments on a floor radiation heating system based on heat storage in different environments. The results showed significant improvements in thermal conductivity and heat release time, making this system a promising solution for achieving heating comfort and economy.
APPLIED THERMAL ENGINEERING
(2023)
Article
Construction & Building Technology
Xinmei Luo, Feng Ren, Hongqiang Ma, Yu Liu, Jiyue Wang, Yue Xie, Ruixiang Ding, Xiaofeng Jia
Summary: A heat transfer model is established for capillary radiant floor coupled with indoor particle diffusion, based on the discrete phase model (DPM) and Euler-Lagrange method. The distribution of temperature in the floor surface and the particles in the indoor room are analyzed. The concentration distribution characteristics of indoor particles in different sizes are further analyzed under the condition of different floor finishing layers. These results are significant for improving the design of capillary radiant floor heating system.
JOURNAL OF BUILDING ENGINEERING
(2023)
Article
Environmental Sciences
Ata Nazari, Jiarong Hong, Farzad Taghizadeh-Hesary, Farhad Taghizadeh-Hesary
Summary: This study conducted a computational investigation of airflow and aerosol transmission in urban subway cabins, identifying high-risk areas for infection and proposing a novel HVAC system to impede aerosol spread.
Article
Construction & Building Technology
J. Estevez-Cimadevila, E. Martin-Gutierrez, F. Suarez-Riestra, D. Otero-Chans, A. Vazquez-Rodrigues
Summary: An integrated solution for building structures using timber-concrete composite sections is presented in this study. The system combines flooring and prefabricated beams made of glued laminated timber and concrete. The connection between the timber and concrete is achieved through shear connection and reinforcement bars. The test results demonstrate the high strength and integrity of the system under demanding conditions.
JOURNAL OF BUILDING ENGINEERING
(2022)
Article
Construction & Building Technology
Xiaoyan Li, Luming Li, Neng Li, Minzhen Bao, Yongjie Bao, Zaixing Wu, Junlong Wang, Fei Rao, Yuhe Chen
Summary: In this study, bamboo scrimber composites (BSCs) were prepared using untreated and heat-treated bamboo fiber mats. The heat treatment improved the dimensional stability but degraded the bending performance of the BSCs. The developed BSCs are promising alternatives for construction and flooring applications.
CONSTRUCTION AND BUILDING MATERIALS
(2022)
Article
Multidisciplinary Sciences
Huixiang Wang
Summary: This study focused on the relationship between the deformation rate of engineered wood flooring and processing parameters using cold-pressing, response surface methodology, and adaptive network-based fuzzy inference system. The results showed that the deformation rate was affected by pressing time, adhesive spreading rate, and pressing pressure. A mathematical model and an adaptive network-based fuzzy inference system model were developed, with the latter showing higher accuracy. The optimal processing conditions for minimizing deformation rate were determined, aiming to improve product quality and reduce production costs.
Article
Engineering, Environmental
Seunghwan Wi, Ji Hun Park, Young Uk Kim, Sumin Kim
Summary: Thermal insulation materials with low thermal conductivity are attracting attention, but the hazards associated with chemicals used to secure insulation performance are increasing. Researches mainly focus on the performance of insulation materials, while the related hazards remain unresolved.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Construction & Building Technology
Young Uk Kim, Ji Hun Park, Beom Yeol Yun, Sungwoong Yang, Seunghwan Wi, Sumin Kim
Summary: The study found that impregnating carbon materials and phase change materials in lightweight aggregates can improve the thermal performance of artificial stone, but may slightly decrease compressive strength. By adjusting the type and amount of carbon materials added, thermal conductivity can be enhanced and peak temperature adjusted.
CONSTRUCTION AND BUILDING MATERIALS
(2021)
Article
Thermodynamics
Dimberu G. Atinafu, Seunghwan Wi, Beom Yeol Yun, Sumin Kim
Summary: Efforts are being made to develop shape-stabilized composite phase change materials (PCMs) for renewable energy storage systems. This study engineered hybrid materials based on commercially available biochar and multiwalled carbon nanotubes, showing promising energy storage capacity in the composite PCMs.
Article
Construction & Building Technology
Seong Jin Chang, Youngtag Kim, Gyeong Seok Choi, Seunghwan Wi, Yujin Kang, Sumin Kim
Summary: Applying enhanced insulation products to buildings can improve building energy performance and reduce carbon emissions, aiding in climate change mitigation. This study developed new materials and technologies to improve the thermal performance of VIPs, proposing a VIP composite board for enhanced constructability.
ENERGY AND BUILDINGS
(2021)
Article
Environmental Sciences
Seunghwan Wi, Ji Hun Park, Young Uk Kim, Sungwoong Yang, Sumin Kim
Summary: As energy use in the building sector increases worldwide, the demand for building materials with energy-saving characteristics and low thermal conductivity is growing. This study evaluated the main performance of 21 insulation materials used at construction sites, including thermal conductivity, water absorption rate, and acidity, providing appropriate methods for assessing their performance.
ENVIRONMENTAL POLLUTION
(2021)
Article
Environmental Sciences
Jisoo Jeon, Ji Hun Park, Hyeonseong Yuk, Young Uk Kim, Beom Yeol Yun, Seunghwan Wi, Sumin Kim
Summary: Wood is a sustainable resource and building material that may suffer structural defects due to decay from moisture. By using biochar to prepare wood-derived biocomposites, it is possible to improve thermal insulation performance and water stability.
ENVIRONMENTAL RESEARCH
(2021)
Article
Chemistry, Multidisciplinary
Hyeonseong Yuk, Sungwoong Yang, Young Uk Kim, Beom Yeol Yun, Seunghwan Wi, Sumin Kim
Summary: The study analyzed the effects of absorbent porous sediments (PAS) and micro-encapsulated phase change materials (MPCM) on the indoor environment and on each other's abilities. By varying the mixing ratio, it was found that indoor finishing materials can effectively control humidity and temperature, exhibiting excellent performance.
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2021)
Article
Environmental Sciences
Ji Hun Park, Young Uk Kim, Jisoo Jeon, Beom Yeol Yun, Yujin Kang, Sumin Kim
Summary: This study demonstrates that adding biochar to mortar can improve both the strength and hygrothermal properties of the mortar. The thermal conductivity of biochar-mortar composites decreases with increasing biochar addition, leading to improved water vapor resistance and humidity control. Overall, the incorporation of biochar into mortar shows potential for enhancing building materials' performance in practice.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Construction & Building Technology
Young Uk Kim, Beom Yeol Yun, Jihee Nam, Ji Yong Choi, Seunghwan Wi, Sumin Kim
Summary: The strength performance of specimens was slightly degraded when 6% biochar was incorporated, while biochar use within 4% yielded similar or higher strength results. Moreover, the thermal conductivity decreased as the amount of biochar in the mixture increased; these thermal conductivity characteristics depended on the pore characteristics of the biochar type.
CONSTRUCTION AND BUILDING MATERIALS
(2021)
Article
Environmental Sciences
Ji Hun Park, Young Uk Kim, Jisoo Jeon, Seunghwan Wi, Seong Jin Chang, Sumin Kim
Summary: Pervious concrete is an eco-friendly pavement material that allows water to percolate through its porous structure, solving environmental issues caused by impervious pavements in cities. The study shows that pervious concrete made with blast-furnace slag and amorphous metallic fibers has good water absorption and thermal conductivity, allowing faster evaporation of water and enhancing the evaporative cooling effect.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2021)
Article
Engineering, Environmental
Sungwoong Yang, Hyeonseong Yuk, Beom Yeol Yun, Young Uk Kim, Seunghwan Wi, Sumin Kim
Summary: This study highlights the importance of improving building airtightness to reduce indoor fine dust concentration. By applying technologies such as sealing film, sealing lid, and padding, the experiment demonstrated a significant reduction in air leakage and indoor fine dust concentration.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Engineering, Environmental
Dimberu G. Atinafu, Beom Yeol Yun, Sungwoong Yang, Yujin Kang, Sumin Kim
Summary: This article reports on the thermal performance of a hybrid material supported n-alkane after one year of storage and 50 heating/cooling cycles. The hybrid material, consisting of metal-organic framework (MOF) and graphite, showed improved shape/thermal stability of tetradecane (TD) with high latent heat retention capacity, low leakage rate, and high PCM loading capacity, making it suitable for thermal management applications such as industrial waste heat recovery systems. The intermolecular interactions and capillary forces between the hybrid materials and TD provided high stability and compatibility, indicating the potential of the hybrid material in developing composite PCMs with comprehensive thermal characteristics.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Green & Sustainable Science & Technology
Sungwoong Yang, Hyun Mi Cho, Beom Yeol Yun, Taehoon Hong, Sumin Kim
Summary: This study focuses on the energy performance of low-rise residential buildings and the technological improvements required to enhance their performance. By evaluating the application of energy-efficient technologies and the impact on energy consumption, the study ultimately assessed the payback period of the investment through economic analysis.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2021)
Article
Construction & Building Technology
Young Uk Kim, Seong Jin Chang, Yong-Jun Lee, Hongje No, Gyeong Seok Choi, Sumin Kim
Summary: The high insulation fire door (HIFD) was designed to improve the insulation performance by using vacuum insulation panels (VIPs) and frames. Through the application of ceramic boards, appropriate gasket positioning, and specific frame design, the thermal performance of the HIFD was significantly enhanced. Despite the high insulation performance, the HIFD also demonstrated excellent fire resistance and airtightness during tests, making it a viable option for building applications.
JOURNAL OF BUILDING ENGINEERING
(2021)
Article
Engineering, Environmental
Dimberu G. Atinafu, Seong Jin Chang, Umberto Berardi, Ki-Hyun Kim, Sumin Kim
Summary: The combination of metal-organic frameworks (MOF) and graphite in nanocomposites shows potential for developing shape-stable phase change materials (PCMs) with improved energy storage capacity. The composite exhibited high energy storage capacity, low electrical resistivity, and enhanced thermal stability, making it suitable for applications in electro/thermal energy management systems.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
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)
