Article
Construction & Building Technology
Xue Wang, Liu Yang, Siru Gao, Shengkai Zhao, Yongchao Zhai
Summary: This study investigates seasonal variations in thermal environment and comfort in classrooms in cold area in China, observing significant differences in temperature, humidity, and CO2 concentration and suggesting cooling in summer and proper ventilation in winter.
ENERGY AND BUILDINGS
(2021)
Article
Green & Sustainable Science & Technology
Ibrahim Reda, Raouf N. AbdelMessih, Mohamed Steit, Ehab M. Mina
Summary: The study found that cross-ventilation can achieve thermal comfort within a suitable range of ambient temperature, while single-side ventilation performs poorly. The DISO scenario with double-inlet single-outlet ventilation can achieve a lower temperature difference, and is suitable for energy conservation and emission reduction.
Article
Construction & Building Technology
Chali Yadeta, Madhavi Indraganti, Gudina Terefe Tucho, Esayas Alemayehu
Summary: This study investigates thermal comfort, adaptive models, and behavioral adaptations in naturally ventilated residential buildings in Jimma town, Ethiopia. The research finds that a majority of occupants feel uncomfortable with the environmental temperature but are able to adapt through environmental adjustments, clothing choices, and activity levels.
ENERGY AND BUILDINGS
(2023)
Article
Construction & Building Technology
Giulia Lamberti, Francesco Leccese, Giacomo Salvadori, Francesca Contrada, Andrea Kindinis
Summary: In educational buildings, adaptive strategies can be implemented to achieve thermal comfort and reduce energy consumption. The role of climate in defining different adaptive capacities, thermal neutrality, comfort, and preference needs to be understood. A study was conducted on 17 naturally ventilated university classrooms from 10 buildings in Italy and France, collecting 1377 questionnaires related to environmental parameters. The results showed that despite performing fewer adaptive actions, French students had a lower neutral temperature compared to Italian students, indicating a climate-dependent adaptation.
ENERGY AND BUILDINGS
(2023)
Article
Construction & Building Technology
Carlos Zepeda-Gil, Sukumar Natarajan
Summary: The study indicates that a significant portion of Mexico's population lacks adequate housing conditions, especially under cold winter climates. Current Mexican houses are unable to provide sufficient indoor thermal comfort environments, indicating the need for a more extensive insulation program.
BUILDING AND ENVIRONMENT
(2022)
Article
Thermodynamics
Dalia Ghaddar, Mariam Itani, Nesreen Ghaddar, Kamel Ghali, Joseph Zeaiter
Summary: This study developed a standalone autonomously controlled personalized ventilation unit in a naturally ventilated office space to maintain acceptable thermal comfort. The NV-PV proportional integral derivative controller adjusted the supply temperature based on predicted thermal comfort levels, with adaptive tuning coefficients found using the Internal Model Control method. The controller was able to maintain acceptable thermal comfort under transient indoor conditions and activity levels.
BUILDING SIMULATION
(2021)
Article
Construction & Building Technology
Pablo Aparicio-Ruiz, Elena Barbadilla-Martin, Jose Guadix, Jesus Munuzuri
Summary: The study reveals discrepancies in thermal comfort between children and adults, with children preferring cooler temperatures and a wider comfort range at 24-27 degrees Celsius indoors. They tend to opt for natural ventilation strategies like opening windows and doors over using fans or changing clothes.
BUILDING AND ENVIRONMENT
(2021)
Article
Construction & Building Technology
Noor Muhammad Abd Rahmam, Lim Chin Haw, Ahmad Fazlizan, Azman Hussin, Muhammad Syukri Imran
Summary: This study determines the thermal comfort conditions in a naturally ventilated public hospital ward using three methods: simulation, measurements, and surveys. The results reveal that the thermal conditions in the studied ward were uncomfortable and require further improvement.
BUILDING AND ENVIRONMENT
(2022)
Article
Metallurgy & Metallurgical Engineering
Mou Di, Cao Bin, Zhu Ying-xin
Summary: Kunming has a unique climate and most residential buildings are naturally ventilated. Despite the indoor temperature being lower than the comfort range, most residents still feel neutral and comfortable. The neutral temperature in Kunming is determined to be 16.96 degrees C, with an acceptable thermal sensation vote (TSV) range of -0.72 to 1.52.
JOURNAL OF CENTRAL SOUTH UNIVERSITY
(2022)
Article
Construction & Building Technology
Antonio J. Aguilar, Maria L. de la Hoz-Torres, Maria Dolores Martinez-Aires, Diego P. Ruiz
Summary: This study assessed the impact of natural ventilation efficiency and university students' thermal perception during the cold season. The results showed that while the CO2 concentration was within the recommended range in most classrooms, only a small percentage of classrooms had thermal conditions that met the national regulations for comfort. These thermal conditions affected students' satisfaction and academic performance.
Article
Construction & Building Technology
Maria Teresa Baquero Larriva, Ana Sofia Mendes, Nuria Forcada
Summary: The paper analyzes the influence of climatic conditions on the thermal comfort of occupants (elderly people, caregivers, and therapists) in naturally ventilated nursing homes. The study collects data from 18 nursing homes in three different climatic zones. The results show that the perception of thermal comfort varies in different climates, and outdoor temperature and humidity play a significant role. This research has important implications for the design and operation of nursing homes in different climates.
BUILDING AND ENVIRONMENT
(2022)
Article
Construction & Building Technology
Kyohei Kondo, Takashi Asawa
Summary: This study examined the effects of air temperature and wind speed on sleep quality in naturally ventilated rooms during autumn. The results showed that a nocturnal mean temperature of 23-24 degrees C was associated with the lowest percentage of wake after sleep onset (WASO), regardless of the window opening conditions. Subjective sleep satisfaction and WASO did not show significant differences between the conditions.
Article
Construction & Building Technology
Frank Suerich-Gulick, Anna Halepaska, Salmaan Craig
Summary: This study introduces the concept of temperature cascades and thermal nesting designs, and demonstrates how a thermally nested scheme can generate a natural temperature cascade. By analyzing thermal comfort and energy-saving limits, the study finds that thermal nesting can significantly reduce energy demand. The results also suggest that higher degrees of nesting, higher benchmark envelope conductance, and larger temperature increments lead to greater energy savings.
BUILDING AND ENVIRONMENT
(2022)
Review
Construction & Building Technology
Aanchal Sharma, Ashok Kumar, Kishor S. Kulkarni
Summary: The history of research on thermal comfort in the built environment is comprehensive, with established ways to evaluate thermal conditions for different types of buildings in various climates worldwide. The article reviews the chronological development of thermal comfort studies, including the identification of parameters, indices, models, and standards. It highlights the progression from early developments to adaptive thermal comfort models and standards in response to the dynamic built environment, using longitudinal and transverse field studies.
JOURNAL OF BUILDING ENGINEERING
(2021)
Article
Energy & Fuels
Francesco Fiorito, Giandomenico Vurro, Francesco Carlucci, Ludovica Maria Campagna, Mariella De Fino, Salvatore Carlucci, Fabio Fatiguso
Summary: This paper examines the impact of user behavior on indoor thermal comfort conditions and predicts the thermal comfort patterns in historic residential buildings. The study finds that the stochastic model is more accurate than the rule-based model in reducing discomfort conditions in various climate scenarios.