Article
Construction & Building Technology
Amir Tabadkani, Astrid Roetzel, Hong Xian Li, Aris Tsangrassoulis
Summary: This research introduces a novel simulation-based framework for personalized real-time control over facade sections or modules in shared office environments. Sending visual discomfort requests to the back-end control algorithm can improve both visual comfort performance and building thermal energy demand.
AUTOMATION IN CONSTRUCTION
(2022)
Article
Energy & Fuels
Amir Tabadkani, Astrid Roetzel, Hong Xian Li, Aris Tsangrassoulis, Shady Attia
Summary: Building envelopes should respond to changing boundary conditions in short-term, daily, or seasonal patterns. Adaptive facades provide the ability to react to outdoor fluctuations and dynamic indoor requirements, while new technologies are being developed to control their performance for user comfort and energy load balance.
Article
Construction & Building Technology
Rana Abdollahi Rizi, Ahmad Eltaweel
Summary: This study addresses less-attended issues in current literature by proposing an innovative approach to improving visual comfort and heat gain for occupants through adaptive facade design. Using parametric simulation and Genetic algorithm optimization, the proposed system showed significant improvements in both visual and thermal comfort, compared to conventional shading states.
JOURNAL OF BUILDING ENGINEERING
(2021)
Review
Construction & Building Technology
Amir Tabadkani, Astrid Roetzel, Hong Xian Li, Aris Tsangrassoulis
Summary: The importance of occupant-centric control strategies in controlling shading systems is emphasized in this research, as it can enhance user satisfaction and comfort. Automatic control strategies may lead to users being unable to intervene in the operation of shading systems.
AUTOMATION IN CONSTRUCTION
(2021)
Article
Energy & Fuels
H. Alkhatib, P. Lemarchand, B. Norton, D. T. J. O'Sullivan
Summary: This study finds that using indoor air temperature as a single control parameter for roller blinds can result in significant energy savings and comfort optimization. Compared to a window without roller blinds, the use of roller blinds achieves heating, cooling, and lighting energy savings of 16%, 19%, and 45% in Dublin, Berlin, and Madrid, respectively. However, using both indoor and outdoor temperature to control the roller blinds has little effect on energy consumption and only provides a slight reduction in daylight discomfort.
Review
Construction & Building Technology
Amir Tabadkani, Astrid Roetzel, Hong Xian Li, Aris Tsangrassoulis
Summary: Designers face challenges in balancing various factors when designing an adaptive shading system. There are research gaps in the field, particularly in terms of the performance and control strategies of non-conventional adaptive facades.
AUTOMATION IN CONSTRUCTION
(2021)
Article
Construction & Building Technology
Amir Tabadkani, Arman Nikkhah Dehnavi, Fatemeh Mostafavi, Hoorie Ghorbani Naeini
Summary: In shared office spaces, a well-designed control system is needed to address the ambient features and potential negative impacts of others' behavior. This research utilized simulation-based methodology, fuzzy logic, and a genetic algorithm to personalize facade modules based on occupants' visual discomfort conditions. The results showed that personalization strategies considering multi-objective criteria could significantly improve occupants' satisfaction and visual comfort compared to typical automated Venetian blind controls. This study provides valuable insights for designers and operators to decentralize facades' control and incorporate occupants' feedback.
JOURNAL OF BUILDING ENGINEERING
(2023)
Article
Construction & Building Technology
Mahdi Valitabar, Ali GhaffarianHoseini, Amirhosein GhaffarianHoseini, Shady Attia
Summary: This paper presents the virtual prototype development of a multi-layer blind system using a brute-force algorithm. The system aims to improve visual comfort and maximize outdoor view, and it utilizes advanced control strategies to respond to environmental changes and occupants' requirements.
ARCHITECTURAL ENGINEERING AND DESIGN MANAGEMENT
(2022)
Review
Construction & Building Technology
Xi Zhang, Hao Zhang, Yuyan Wang, Xuepeng Shi
Summary: This paper explores the factors hindering the growth of the market share of adaptive facades (AFs) by examining designs, evaluation criteria and tools, and control systems. Insufficient commercial technology, inaccurate and incomplete performance data, and inconsistent evaluation criteria are identified as the main factors that have hindered the widespread utilization of AFs. Future research tendencies include reducing costs, retrofitting existing building facades, developing building performance measurement tools, and building consensus evaluation criteria that favor the wide applicability of such facades in actual practice.
Article
Energy & Fuels
Dac-Khuong Bui, Tuan Ngoc Nguyen, Abdallah Ghazlan, Tuan Duc Ngo
Summary: This study presents a design of biomimetic adaptive facade (BAF) based on bioinspiration to enhance building energy efficiency, validated in Melbourne and Texas. Results show that the proposed BAF can significantly reduce energy consumption compared to benchmark facades in both locations. The impact of window-to-wall ratio and orientation on energy and cost efficiency were also investigated, confirming the potential of BAF in improving building energy efficiency.
Article
Construction & Building Technology
Yigit Yilmaz, Kenan Eren Sansal, Mine Ascigil-Dincer, Sinem Kultur, Sezin Hatice Tanriover
Summary: School environments have a significant impact on students, with the facade playing a crucial role. However, there is a lack of multi-perspective evaluation of facades in existing literature. Therefore, this paper proposes a method to determine appropriate facade aperture sizes through a case study of a primary school classroom.
INDOOR AND BUILT ENVIRONMENT
(2022)
Article
Energy & Fuels
Seyedehsara Yazdi Bahri, Marc Alier Forment, Alberto Sanchez Riera, Faezeh Bagheri Moghaddam, Maria Jose Casan Guerrero, Ariadna Maria Llorens Garcia
Summary: This study provides a systematic review of tools and techniques that have been used to improve thermal comfort in recent years, and simulation is found to be the most accurate method.
Review
Construction & Building Technology
Daniel Sanchez-Garcia, David Bienvenido-Huertas, Carlos Rubio-Bellido
Summary: The study introduces a computational approach, ACCIS, to extend air-conditioning usage to adaptive comfort, aiming to achieve energy savings. Results from a case study showed that adaptive setpoint temperatures could save up to 83% of energy. ACCIS allows for unlimited simulations with high customization properties, making it a powerful tool for energy efficiency.
AUTOMATION IN CONSTRUCTION
(2021)
Article
Construction & Building Technology
Mine Koyaz, Aslihan uenlue
Summary: Indoor environmental conditions have significant effects on users' comfort, satisfaction, and well-being. This paper investigates the impact of the building facade on users' experiences in work environments through an online survey. The results provide insights into users' preferences and can be used to determine performance criteria for human-centered adaptive facade design.
BUILDING AND ENVIRONMENT
(2022)
Article
Thermodynamics
Cagatay Haratoka, Refet A. Yalcin, Hakan Erturk
Summary: Thermo-chromic coatings are investigated for their energy saving performance on ordinary window glass in different climate regions of Turkey. The coatings change their optical properties based on temperature and contain vanadium dioxide (VO2) that undergoes phase transition. The study examines the energy savings and visual comfort of the coatings by modeling an office room in Izmir, Istanbul, and Ankara. The results show up to 26% and 9% energy saving potential in hot and cold climates, respectively.
Article
Engineering, Civil
Yan Liu, Chenyao Lv, Hong Xian Li, Yan Li, Zhen Lei, Yingbo Ji
Summary: This study utilizes evolutionary game theory to analyze the development of quality liability insurance for prefabricated components (QLIPC). The results demonstrate that QLIPC can effectively reduce governance cost and provide significant social benefits. The research provides a theoretical framework for the government to develop long-term strategies for the QLIPC market.
CANADIAN JOURNAL OF CIVIL ENGINEERING
(2022)
Article
Energy & Fuels
Yu Wang, Ling Dong, Hongxian Li
Summary: With the increasing energy consumption of hotels in China, it is crucial to retrofit existing hotels to improve energy efficiency. This study constructs an economic evaluation model using economic evaluation and cost-effectiveness ratio as the base. The case study of 15 existing hotels in Jiangsu Province reveals that the HVAC system, monitoring system, lighting system, domestic hot water system, and building envelope system are the most commonly applied energy-saving retrofit measures.
Article
Construction & Building Technology
Amir Tabadkani, Astrid Roetzel, Hong Xian Li, Aris Tsangrassoulis
Summary: This research introduces a novel simulation-based framework for personalized real-time control over facade sections or modules in shared office environments. Sending visual discomfort requests to the back-end control algorithm can improve both visual comfort performance and building thermal energy demand.
AUTOMATION IN CONSTRUCTION
(2022)
Article
Engineering, Industrial
Yudan Dou, Xiaolong Xue, Hong Xian Li, Xiaowei Luo, Zhongfu Li
Summary: This paper explores the optimization of off-site construction project development strategies from the synergetic perspective of the government and developers. By constructing a dynamic Stackelberg game model and conducting an example analysis, the optimal development strategies and the influences of key parameters in Changchun City, China are obtained. The proposed synergetic optimization model contributes to achieving a win-win goal of development.
JOURNAL OF MANAGEMENT IN ENGINEERING
(2022)
Article
Green & Sustainable Science & Technology
Shady Attia, Stephanie Bertrand, Mathilde Cuchet, Siliang Yang, Amir Tabadkani
Summary: Adaptive facades are becoming increasingly important in highly efficient buildings. This study compares the energy performance and overheating risk of four different types of dynamic facades, ranking them and providing valuable insights for facade designers and building owners.
Article
Energy & Fuels
Hong Xian Li, Trivess Moore, Jiaxin Huang, Peng Zhang, Glenn Costin
Summary: This research aims to address the limited policy development towards zero carbon housing in Australia, specifically in the region of Victoria, by evaluating existing policies and proposing adaptations. The study reveals that builders lack experience in constructing zero carbon houses and financial incentives from state governments are crucial in promoting their adoption. The findings inform the development of a proposed policy framework that could facilitate the delivery of zero carbon housing not only in Australia but also in other jurisdictions.
ENERGY STRATEGY REVIEWS
(2022)
Article
Construction & Building Technology
Yan Liu, Wenjing Tong, Qianqian Li, Fuyi Yao, Yan Li, Hong Xian Li, Jiaxin Huang
Summary: This paper explores the complexity of precast concrete components and evaluates its impact on production efficiency. The study reveals that factors such as the number of embedded parts, waiting time in production, operating proficiency of workers, and degree of automation of the production line significantly affect the production efficiency of precast concrete components.
ADVANCES IN CIVIL ENGINEERING
(2022)
Article
Architecture
Amir Tabadkani, Sara Aghasizadeh, Saeed Banihashemi, Aso Hajirasouli
Summary: This study evaluates courtyard design variants in different climates, focusing on indoor thermal comfort and utility costs. The results show a high correlation between outdoor weather variation and dead-band ranges in relation to thermal loads, costs, and indoor thermal comfort index. In extreme climates like Singapore, courtyard spaces may not be as efficient as expected. Additionally, a deep learning model is developed to predict thermal comfort and utility costs of courtyard designs accurately.
FRONTIERS OF ARCHITECTURAL RESEARCH
(2022)
Review
Construction & Building Technology
Yan Liu, Fuyi Yao, Yingbo Ji, Wenjing Tong, Guiwen Liu, Hong Xian Li, Xin Hu
Summary: The quality control of off-site construction (OSC) projects is crucial for the safety of buildings and their occupants. This study conducts a comprehensive review of existing literature in order to identify knowledge gaps and future research directions in quality control for OSC. The identified knowledge gaps include the lack of suitable QC rules, outdated QC means, immature QC information technology, and existing limitations in the connotation of QC for OSC. Based on these gaps, future research directions are suggested, including quality risk control, supply chain quality management, BIM-based quality data management, blockchain technology for quality traceability, and performance assessment models for QC in OSC. This research contributes to a deeper understanding of quality control for OSC and offers valuable insights for improving the quality of the OSC industry.
JOURNAL OF CONSTRUCTION ENGINEERING AND MANAGEMENT
(2022)
Article
Construction & Building Technology
Chunqing Wang, Chao Li, Lang Xie, Xinru Wang, Li Chang, Xiangming Wang, Hong Xian Li, Yiqiao Liu
Summary: This study adopts a whole-process thermal comfort tracking method to investigate passengers' thermal responses and monitor the thermal environment in metro systems. The results show that the thermal environment in metro systems is non-constant in spatial dimension, and the overall thermal sensation is slightly cool. The research provides valuable references for improving comfort specifications and environmental control in metro systems in severe cold regions.
BUILDING AND ENVIRONMENT
(2023)
Article
Energy & Fuels
Abdulhameed Babatunde Owolabi, Abdulfatai Olatunji Yakub, Hong Xian Li, Dongjun Suh
Summary: This study evaluates and compares two grid-connected solar photovoltaic systems using five different criteria. The results show that the m-si solar PV has a better annual performance in terms of energy output and array yield, and saves approximately 10 tons of CO2 emissions per year.
Article
Multidisciplinary Sciences
Hong Xian Li, Daniel E. Okolo, Amir Tabadkani, Tony Arnel, Dongming Zheng, Long Shi
Summary: This research aims to promote the application of ground source heat pumps in building operations through an integrated framework, including an improved NREL monitoring guideline, a sensor-based monitoring prototype, and a g-function-based simulation approach. By monitoring and validating a state-of-the-art case building in Melbourne, Australia, it is found that the research framework effectively evaluates ground source heat pump systems, contributing to the utilization of geothermal energy for building operations.
SCIENTIFIC REPORTS
(2023)
Article
Engineering, Industrial
Peter Sutterby, Xiangming Wang, Hong Xian Li, Yingbo Ji
Summary: This research investigates the impact of the current pandemic on the daily operations of a large private Australian construction company. It examines how effective construction supply chain management can minimize the negative effects of a pandemic on a company. The findings suggest that the case company has effectively managed its supply chains during the pandemic through supply chain monitoring processes and maintaining stable relationships with stakeholders.
ENGINEERING CONSTRUCTION AND ARCHITECTURAL MANAGEMENT
(2023)
Article
Energy & Fuels
Hong Xian Li, Yan Li, Meng Du
Summary: CO2 emissions from building operations have exceeded the Paris Agreement target of 2 degrees Celsius. Zero carbon housing, although a viable solution, faces limited acceptance due to perceived high upfront costs. This research aims to identify affordable solutions by integrating building design, mechanical services, and renewable energy, and achieving a balance between capital cost and environmental benefits. The study utilizes energy simulation, sensitivity analysis, and multi-objective optimization, and successfully demonstrates the feasibility of low-cost zero carbon housing. Rating: 9 out of 10.
Proceedings Paper
Engineering, Aerospace
Manea Almatared, Hexu Liu, Shengxian Tang, Mohammed Sulaiman, Zhen Lei, Hong Xian Li
Summary: This research synthesizes the state-of-art on digital twin (DT) in the architecture, engineering, and construction (AEC) industry through bibliometric analysis, aiming to identify the research trends, challenges, and knowledge gaps. The findings reveal that future research should focus on data interoperability, AIoT, and AI, and more research efforts should be given to DT applications during the design and construction phases.
CONSTRUCTION RESEARCH CONGRESS 2022: COMPUTER APPLICATIONS, AUTOMATION, AND DATA ANALYTICS
(2022)
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)