Human Thermal Adaptation in University Classrooms and Dormitories in Chinese Severe Cold Area in Winter

Wang, Zhaojun; Zhang, Xuexiang; Ning, Haoran; Ji, Yuchen

doi:10.1016/j.proeng.2016.06.348

Cited by 10 publications

(8 citation statements)

References 6 publications

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“…Specifically, comfort temperature calculated by the Griffiths' method tends to be 1 • C higher in studios than lecture rooms and PC labs, and comfortable temperature is shown to be approximately 2 • C lower under heating mode compared to the free-running and cooling modes [86]. Wang et al [101] compared the preferred temperatures within the classrooms and dormitories. The results indicated that the students feel comfortable in dormitories with a higher preferred temperature of 21 • C than in classrooms where higher clothing insulation is expected.…”

Section: Mechanical Ventilation (Mv)mentioning

confidence: 99%

Interaction between Thermal Comfort, Indoor Air Quality and Ventilation Energy Consumption of Educational Buildings: A Comprehensive Review

Jia¹,

Han²,

Chen

et al. 2021

Buildings

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Thermal comfort and indoor air quality (IAQ) of educational buildings can affect students’ academic performance and well-being and are closely related to ventilation energy consumption. Demands of the indoor environmental quality within the classroom generally vary with the education levels and result in ventilation energy consumption accounting for a considerable proportion of the total energy use in bulk educational buildings. Its huge energy-saving potential is attracting worldwide attention from scholars and governments. Therefore, appropriate operation strategies of ventilation systems should be adopted to effectively reduce energy consumption without sacrificing thermal comfort and IAQ. However, the absence of relevant standards and guidelines for designing a quality classroom environment considering the special features of educational buildings remains an important research question. This study conducts a comprehensive review to determine research gaps and identify future directions for the interaction between thermal comfort, IAQ and ventilation energy consumption for educational buildings. The review results show that: (1) The thermal comfort prediction model should consider the influences of genders, ages and socioeconomic backgrounds; (2) The mixed-mode ventilation coupling the natural and mechanical approaches is preferred given its advantage of lower energy consumption and improved thermal comfort, but its control strategies need further exploration; (3) Optimizing passive design parameters of buildings (e.g., window to wall ratios, window orientations and sun shading installations) can significantly reduce the ventilation demands while maintaining indoor thermal comfort; (4) More studies are required for investigating thermal comfort in educational buildings during the heating period; and (5) IAQ of university buildings clearly requires further studies, especially on bacterial and fungal aerosol pollutants, for a more comprehensive assessment of the built environment.

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Section: Mechanical Ventilation (Mv)mentioning

confidence: 99%

Interaction between Thermal Comfort, Indoor Air Quality and Ventilation Energy Consumption of Educational Buildings: A Comprehensive Review

Jia¹,

Han²,

Chen

et al. 2021

Buildings

View full text Add to dashboard Cite

show abstract

“…In our study, the average temperatures during and after the central heating period were 27.0 °C and 24.1 °C, respectively. In similar studies [ 9 , 12 , 13 ], the average temperatures of the dormitories measured in Harbin, Nanjing, and Shanghai during the winter were 23 °C, 15.8 °C, and 12.1 °C, respectively. The measured indoor temperatures were significantly lower in Shanghai and Nanjing, due to the lack of central heating systems.…”

Section: Discussionmentioning

confidence: 82%

“…Recently, several studies have been conducted on the IEQ issues of student dormitories [ 1 , 5 , 6 , 7 , 8 , 9 , 10 , 11 , 12 , 13 ]. Several studies have focused on the relationship between the ventilation rate and students’ health status, as well as on the indoor air quality (IAQ) of dormitories.…”

Section: Introductionmentioning

confidence: 99%

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Associations of Indoor Environmental Quality Parameters with Students’ Perceptions in Undergraduate Dormitories: A Field Study in Beijing during a Transition Season

Miao

Cao

Zuo

2022

IJERPH

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A healthy and comfortable dormitory environment is crucial to the quality of students’ daily lives. In this field study, the indoor environmental quality (IEQ) parameters of undergraduate dormitories in Beijing were measured, while questionnaire surveys were conducted to evaluate the corresponding subjective perceptions of students. Integrated environmental monitoring kits were used to collect temperature, relative humidity, CO2, PM2.5, PM10, TVOC, formaldehyde, and noise data in the investigated dormitories, during the transition season from winter to spring. Questionnaires and scales were distributed to obtain the students’ subjective perceptions of and satisfaction with the IEQ, and their health and well-being status. The measured IEQ data showed that the thermal environment tended to be warm and dry during the heating period. The CO2 concentrations seriously exceeded standard levels due to insufficient indoor natural ventilation. Noise exposure could sometimes interfere with students’ rest. The students’ overall satisfaction with the dormitory environment was low, especially in terms of air quality and acoustic environment. The unsatisfactory IEQ factors have led to several health symptoms, poor sleep quality, and slightly lower well-being. Correlations were found between the IEQ parameters and the corresponding subjective perceptions and satisfaction levels. It was speculated that students’ satisfaction and well-being could be effectively improved by appropriately adjusting the corresponding IEQ parameters.

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“…53 The subject's thermal behaviour could modulate thermal comfort and the feeling of thermal comfort could influence the subject's thermal behaviour conversely. Some of these thermal behaviours such as window opening 46 Cold, Taiyuan Heating season Wang et al 47 Severely cold, Harbin would affect thermal comfort by adjusting the indoor thermal environment. However, there are limitations for thermal comfort adjustment (Figure 1).…”

Section: Introductionmentioning

confidence: 99%

Passive space design, building environment and thermal comfort: A university building under severe cold climate, China

Dai

Jiang

2020

Indoor and Built Environment

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In this paper, the building environment and the thermal comfort of occupants were investigated at a university building located in severe cold climate zone in the northwest of China during winter, transition and summer. First, in the two typical weather days of the year, the thermal environment of the Shihezi University building with atrium and courtyard was measured on the spot to investigate the impact of passive space design on the thermal environment of the building. Second, a questionnaire survey was used to report occupants’ subjective thermal perception and environmental variables were measured simultaneously. A total of 1346 valid subjective questionnaires and measurement data were obtained. The results showed that the thermal neutral temperature analysed by linear regression in winter, transition and summer were 24.42°C, 24.64°C and 28.10°C, respectively. The thermal comfort temperature range was from 19.59 to 29.44°C (winter) and 23.32 to 28.52°C (transition and summer). The occupants’ preference temperature was 25.14°C and 24.35°C in winter and transition. The adaptive behaviours of clothing adjustment and opening windows were closely correlated to the indoor operative temperature. Third, the correlation between indicators of thermal comfort, including subjective feelings and objective factors was also analysed.

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Human Thermal Adaptation in University Classrooms and Dormitories in Chinese Severe Cold Area in Winter

Cited by 10 publications

References 6 publications

Interaction between Thermal Comfort, Indoor Air Quality and Ventilation Energy Consumption of Educational Buildings: A Comprehensive Review

Interaction between Thermal Comfort, Indoor Air Quality and Ventilation Energy Consumption of Educational Buildings: A Comprehensive Review

Associations of Indoor Environmental Quality Parameters with Students’ Perceptions in Undergraduate Dormitories: A Field Study in Beijing during a Transition Season

Passive space design, building environment and thermal comfort: A university building under severe cold climate, China

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