Article
Materials Science, Multidisciplinary
Mohamed Boutghatin, Yan Pennec, Bahram Djafari-Rouhani, Abdellatif Akjouj, Valerie Gaucher, Hayriye Gidik, Salim Assaf, Michele Carette, Vincent Thomy
Summary: Improving the radiative heating performance of textiles by incorporating a thin metallic layer with high reflectivity and nanoparticles in an asymmetric design can achieve a comfortable zone at different temperature ranges.
ADVANCED MATERIALS TECHNOLOGIES
(2022)
Article
Engineering, Environmental
Sampath Suranjan Salins, Shiva Kumar, Jatin Chouhan, Ana Tejero-Gonzalez, Prashant Sreekumaran Nair
Summary: This study presents a spray tower-based desalination system that can provide fresh water and dehumidified air simultaneously. Experimental results show that the system performs well with high efficiency under the appropriate sea water flow rate.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2023)
Article
Green & Sustainable Science & Technology
Jorge Conejo-Fernandez, Francesca Cappelletti, Andrea Gasparella
Summary: Utilizing solar gains is an effective passive strategy to reduce heating energy demand, as it impacts both the thermal balance of buildings and occupants. By incorporating solar radiation into thermal comfort models, with adjustments to Predicted Mean Vote calculations, it can better account for its effects. Dynamic thermal comfort indices have shown to perform similarly to solar-adjusted PMV in detecting comfort issues in various configurations.
Article
Construction & Building Technology
Kaiser Ahmed, Tero Hasu, Jarek Kurnitski
Summary: The study focused on improving building energy performance, thermal comfort, and indoor air quality in newly built Finnish daycare and school buildings. Monitoring of Indoor Environmental Quality (IEQ), energy performance, investment, and life cycle cost (LCC) was conducted. The study found potential energy-saving measures while ensuring good thermal comfort and IAQ. Accurate energy prediction was emphasized for cost considerations.
JOURNAL OF BUILDING ENGINEERING
(2022)
Article
Construction & Building Technology
Kaiser Ahmed, Tero Hasu, Jarek Kurnitski
Summary: The study focused on improving building energy performance in Finnish daycare and school buildings while maintaining good thermal comfort and indoor air quality. Indoor Environmental Quality (IEQ), energy performance, investment, and life cycle cost were monitored. Energy performance was evaluated through simulations, showing potential for energy savings while ensuring comfort and IAQ.
JOURNAL OF BUILDING ENGINEERING
(2022)
Article
Construction & Building Technology
Despoina Teli, Theofanis Psomas, Sarka Langer, Anders Truschel, Jan-Olof Dalenback
Summary: Residential indoor climate significantly impacts occupant comfort, health, and energy demand. This study in Sweden found that a majority of indoor temperatures were above 21 degrees C, with one third exceeding 23 degrees C, and most dwellings maintained constant temperatures throughout the day. High winter indoor temperatures were more common in middle-placed apartments in multi-family buildings and well-insulated single-family houses, and were associated with draft from windows, overheating, and difficulty in temperature control. However, overall thermal comfort assessment was positive regardless of high or low temperatures.
BUILDING AND ENVIRONMENT
(2021)
Article
Thermodynamics
Chao Liu, Yalin Zhang, Limei Sun, Weijun Gao, Xiaotong Jing, Weirui Ye
Summary: The study found that undergraduate students performed best in indoor environments with 40% relative humidity and 24 degrees Celsius, with relative humidity having a greater impact on learning performance than air temperature. Low humidity environments decreased overall learning performance, emphasizing the importance of considering relative humidity when designing learning spaces.
CASE STUDIES IN THERMAL ENGINEERING
(2021)
Article
Environmental Sciences
Sijing Liu, Yongxin Xie, Yingxin Zhu, Borong Lin, Bin Cao, Nyuk Hien Wong, Jianlei Niu, Zhaosong Fang, Dayi Lai, Weiwei Liu, Jianxiu Wen, Di Mou, Hao Tang, Zhaoru Liu, Marcel Ignatius
Summary: The study demonstrates that people are less sensitive to changes in thermal environment outdoors compared to indoors. Thermal comfort cannot be simply equated to thermal neutrality, especially in outdoor spaces. Outdoor spaces in certain climate zones exhibit higher comfort rates, and natural thermal resources may hold the key to extending indoor comfort ranges.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Review
Construction & Building Technology
Fudan Liu, Lianyu Yan, Xi Meng, Cen Zhang
Summary: This article reviews the development status and potential deficiencies of indoor green plants in improving indoor environments, emphasizing their effects on indoor temperature, concentration of harmful substances, and emotions, as well as their application efficiency in learning, productivity, and patient recovery.
JOURNAL OF BUILDING ENGINEERING
(2022)
Article
Construction & Building Technology
Xiaoyue Lang, Pawel Wargocki, Weiwei Liu
Summary: The study investigated the relationship between EEG signals, thermal comfort, and cognitive performance in neutral to hot indoor environments. The results showed a significant correlation between the relative power of EEG signals and thermal comfort/performance of neurobehavioral tests. Different EEG bands had varying correlations with thermal comfort and test performance.
Article
Construction & Building Technology
Jing Jiang, Dengjia Wang, Yanfeng Liu, Yuhui Di, Jiaping Liu
Summary: Current thermal comfort evaluation models based on average levels for entire society are not suitable to directly guide the design of classroom thermal environments. The study establishes a quantitative relationship between temperature and thermal comfort, as well as the impact on learning performance. Recommendations for temperature design parameters and ranges for different comfort and performance levels are proposed, aiming to reduce energy consumption and improve classroom environment design.
BUILDING AND ENVIRONMENT
(2021)
Article
Thermodynamics
Ayman Alazazmeh, Muhammad Asif
Summary: Climate change is a major challenge for mankind, with efforts to reduce greenhouse gas emissions. The building sector, responsible for a significant amount of energy consumption and emissions, especially HVAC systems, plays a crucial role. Retrofitting commercial buildings can significantly improve energy performance and indoor air quality, with potential cost savings.
CASE STUDIES IN THERMAL ENGINEERING
(2021)
Review
Construction & Building Technology
Oluyemi Toyinbo
Summary: This article reviews the impact of indoor environmental quality (IEQ) on schools, focusing on ventilation, thermal comfort, moisture and mold, and cleanliness. Adequate ventilation and thermal comfort are recommended to reduce the risk of communicable diseases, but natural ventilation may be limited in some regions.
Article
Environmental Sciences
Eduardo Diz-Mellado, Victoria Patricia Lopez-Cabeza, Carlos Rivera-Gomez, Carmen Galan-Marin
Summary: Cities are confronted with the challenges of overheating and inefficient energy use in housing buildings. Passive techniques, such as implementing courtyards, offer promising solutions to enhance building comfort levels and promote energy efficiency.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Article
Construction & Building Technology
Shanshan Li, Xiaoyi Zhang, Yanxue Li, Weijun Gao, Fu Xiao, Yang Xu
Summary: Ensuring occupants' work or cognitive performance and maintaining thermal comfort are important targets of indoor thermal environment management. Advanced sensing technologies based on physiological measurements and machine learning (ML) approaches have provided a more precise and efficient way to assess the link between the indoor thermal environment and the performances of occupants. This review work integrates the results of cognitive tests related to the thermal environment and performance, summarizes the application of existing physiological indicators, and the practice of using sensing technologies and ML technology to assess occupant performance and predict indoor thermal comfort.
JOURNAL OF BUILDING ENGINEERING
(2023)
Article
Thermodynamics
Yong Cheng, Fukai Song, Lei Fu, Saishuai Dai, Zhiming Yuan, Atilla Incecik
Summary: This paper investigates the accessibility of wave energy absorption by a dual-pontoon floating breakwater integrated with hybrid-type wave energy converters (WECs) and proposes a hydraulic-pneumatic complementary energy extraction method. The performance of the system is validated through experiments and comparative analysis.
Article
Thermodynamics
Jing Gao, Chao Wang, Zhanwu Wang, Jin Lin, Runkai Zhang, Xin Wu, Guangyin Xu, Zhenfeng Wang
Summary: This study aims to establish a new integrated method for biomass cogeneration project site selection, with a focus on the application of the model in Henan Province. By integrating Geographic Information System and Multiple Criterion Decision Making methods, the study conducts site selection in two stages, providing a theoretical reference for the construction of biomass cogeneration projects.
Article
Thermodynamics
Mert Temiz, Ibrahim Dincer
Summary: The current study presents a hybrid small modular nuclear reactor and solar-based system for sustainable communities, integrating floating and bifacial photovoltaic arrays with a small modular reactor. The system efficiently generates power, hydrogen, ammonia, freshwater, and heat for residential, agricultural, and aquaculture facilities. Thermodynamic analysis shows high energy and exergy efficiencies, as well as large-scale ammonia production meeting the needs of metropolitan areas. The hybridization of nuclear and solar technologies offers advantages of reliability, environmental friendliness, and cost efficiency compared to renewable-alone and fossil-based systems.
Editorial Material
Thermodynamics
Wojciech Stanek, Wojciech Adamczyk
Article
Thermodynamics
Desheng Xu, Yanfeng Li, Tianmei Du, Hua Zhong, Youbo Huang, Lei Li, Xiangling Duanmu
Summary: This study investigates the optimization of hybrid mechanical-natural ventilation for smoke control in complex metro stations. The results show that atrium fires are more significantly impacted by outdoor temperature variations compared to concourse/platform fires. The gathered high-temperature smoke inside the atrium can reach up to 900 K under a 5 MW train fire energy release. The findings provide crucial engineering insights into integrating weather data and adaptable ventilation protocols for smoke prevention/mitigation.
Article
Thermodynamics
Da Guo, Heping Xie, Mingzhong Gao, Jianan Li, Zhiqiang He, Ling Chen, Cong Li, Le Zhao, Dingming Wang, Yiwei Zhang, Xin Fang, Guikang Liu, Zhongya Zhou, Lin Dai
Summary: This study proposes a new in-situ pressure-preserved coring tool and elaborates its pressure-preserving mechanism. The experimental and field test results demonstrate that this tool has a high pressure-preservation capability and can maintain a stable pressure in deep wells. This study provides a theoretical framework and design standards for the development of similar technologies.
Article
Thermodynamics
Aolin Lai, Qunwei Wang
Summary: This study assesses the impact of China's de-capacity policy on renewable energy development efficiency (REDE) using the Global-MSBM model and the difference-in-differences method. The findings indicate that the policy significantly enhances REDE, promoting technological advancements and marketization. Moreover, regions with stricter environmental regulations experience a higher impact.
Article
Thermodynamics
Mostafa Ghasemi, Hegazy Rezk
Summary: This study utilizes fuzzy modeling and optimization to enhance the performance of microbial fuel cells (MFCs). By simulating and analyzing experimental data sets, the ideal parameter values for increasing power density, COD elimination, and coulombic efficiency were determined. The results demonstrate that the fuzzy model and optimization methods can significantly improve the performance of MFCs.
Article
Thermodynamics
Zhang Ruan, Lianzhong Huang, Kai Wang, Ranqi Ma, Zhongyi Wang, Rui Zhang, Haoyang Zhao, Cong Wang
Summary: This paper proposes a grey box model for fuel consumption prediction of wing-diesel hybrid vessels based on feature construction. By using both parallel and series grey box modeling methods and six machine learning algorithms, twelve combinations of prediction models are established. A feature construction method based on the aerodynamic performance of the wing and the energy relationship of the hybrid system is introduced. The best combination is obtained by considering the root mean square error, and it shows improved accuracy compared to the white box model. The proposed grey box model can accurately predict the daily fuel consumption of wing-diesel hybrid vessels, contributing to operational optimization and the greenization and decarbonization of the shipping industry.
Article
Thermodynamics
Huayi Chang, Nico Heerink, Junbiao Zhang, Ke He
Summary: This study examines the interaction between off-farm employment decisions between couples and household clean energy consumption in rural China, and finds that two-paycheck households are more likely to consume clean energy. The off-farm employment of women is a key factor driving household clean energy consumption to a higher level, with wage-employed wives having a stronger influence on these decisions than self-employed ones.
Article
Thermodynamics
Hanguan Wen, Xiufeng Liu, Ming Yang, Bo Lei, Xu Cheng, Zhe Chen
Summary: Demand-side management is crucial to smart energy systems. This paper proposes a data-driven approach to understand the relationship between energy consumption patterns and household characteristics for better DSM services. The proposed method uses a clustering algorithm to generate optimal customer groups for DSM and a deep learning model for training. The model can predict the possibility of DSM membership for a given household. The results demonstrate the usefulness of weekly energy consumption data and household socio-demographic information for distinguishing consumer groups and the potential for targeted DSM strategies.
Article
Thermodynamics
Xinglan Hou, Xiuping Zhong, Shuaishuai Nie, Yafei Wang, Guigang Tu, Yingrui Ma, Kunyan Liu, Chen Chen
Summary: This study explores the feasibility of utilizing a multi-level horizontal branch well heat recovery system in the Qiabuqia geothermal field. The research systematically investigates the effects of various engineering parameters on production temperature, establishes mathematical models to describe their relationships, and evaluates the economic viability of the system. The findings demonstrate the significant economic feasibility of the multi-level branch well system.
Article
Thermodynamics
Longxin Zhang, Songtao Wang, Site Hu
Summary: This investigation reveals the influence of tip leakage flow on the modern transonic rotor and finds that the increase of tip clearance size leads to a decline in rotor performance. However, an optimal tip clearance size can extend the rotor's stall margin.
Article
Thermodynamics
Kristian Gjoka, Behzad Rismanchi, Robert H. Crawford
Summary: This paper proposes a framework for assessing the performance of 5GDHC systems and demonstrates it through a case study in a university campus in Melbourne, Australia. The results show that 5GDHC systems are a cost-effective and environmentally viable solution in mild climates, and their successful implementation in Australia can create new market opportunities and potential adoption in other countries with similar climatic conditions.
Article
Thermodynamics
Jianwei Li, Guotai Wang, Panpan Yang, Yongshuang Wen, Leian Zhang, Rujun Song, Chengwei Hou
Summary: This study proposes an orientation-adaptive electromagnetic energy harvester by introducing a rotatable bluff body, which allows for self-regulation to cater for changing wind flow direction. Experimental results show that the output power of the energy harvester can be greatly enhanced with increased rotatory inertia of the rotating bluff body, providing a promising solution for harnessing wind-induced vibration energy.