Does energy-efficient renovation positively impact thermal comfort and air quality in university buildings?

Run, Keovathana; Cévaër, Franck; Dubé, Jean-François

doi:10.1016/j.jobe.2023.107507

Cited by 6 publications

(2 citation statements)

References 73 publications

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“…Another essential aspect is the provision of guidance to indoor users to promote well-being and the conscious use of energy. This type of measure was not commonly applied in the past, as evidenced by the research conducted by Run, Cévaër, and Dubé [58] in France. This research investigated a university building constructed in the late 1960s when energy issues were not considered particularly relevant.…”

Section: General Aspects Of the Researchmentioning

confidence: 99%

Thermal Comfort Assessment in University Classrooms: A Discriminant Analysis for Categorizing Individuals According to Gender and Thermal Preferences

Niza,

da Luz,

Broday

2023

Atmosphere

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The concern with the well-being of users in buildings has become increasingly essential, covering aspects related to health, energy efficiency, and productivity. The thermal environment evaluation in buildings has become more frequent due to the time people spend inside them. In this context, this study aimed to analyze thermal comfort in classrooms at a Brazilian University. During the autumn, 50 measurements were performed, resulting in 519 valid responses. The results of the linear regression analysis revealed that the thermal comfort range for females was 20.39–22.19 °C, while for males it was 19.47–22.56 °C. Through discriminant analysis, participants were classified based on their thermal sensation vote (TSV), predicted mean vote (PMV), and thermal preference votes (PREF), achieving a success rate of 76.1% for females and 81.6% for males in forming the groups, which demonstrates the effectiveness of discriminant functions in predicting thermal comfort for both groups. These results highlight the importance of considering gender differences in the search for thermal comfort conditions and providing guidelines that promote the well-being of occupants and the conscious use of energy. This implies adjusting the thermal conditions according to the specific needs of males and females in classrooms, always seeking to provide a suitable environment for activities, and considering energy efficiency and users’ productivity.

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Section: General Aspects Of the Researchmentioning

confidence: 99%

Thermal Comfort Assessment in University Classrooms: A Discriminant Analysis for Categorizing Individuals According to Gender and Thermal Preferences

Niza,

da Luz,

Broday

2023

Atmosphere

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“…Numerous studies have investigated the impact of HVAC systems, uncovering issues such as performance losses, energy waste, non-compliance with regulations, and occupant discomfort that can be effectively mitigated through Fault Detection and Diagnosis techniques. Implementing these methods allows for a thorough examination and enhancement of building systems, ensuring optimal performance, energy efficiency, regulatory compliance, and improved occupant comfort [16][17][18].…”

Section: Introductionmentioning

confidence: 99%

Greenhouse Gas Payback Time of Different HVAC Systems in the Renovation of Nordic District-Heated Multifamily Buildings Considering Future Energy Production Scenarios

Khadra,

Akander,

Myhren

2024

Buildings

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The European Union (EU) has implemented several policies to enhance energy efficiency. Among these policies is the objective of achieving energy-efficient renovations in at least 3% of EU buildings annually. The primary aim of this study was to offer a precise environmental comparison among four similar district-heated multifamily buildings that have undergone identical energy efficiency measures. The key distinguishing factor among them lies in the HVAC systems installed. The chosen systems were as follows: (1) exhaust ventilation with air pressure control; (2) mechanical ventilation with heat recovery; (3) exhaust ventilation with an exhaust air heat pump; and (4) exhaust ventilation with an exhaust air heat pump with a Photovoltaic (PV) panel. This study involved a life cycle assessment that relied on actual material data from the housing company and energy consumption measurements. This study covered a period of 50 years for thorough analysis. A sensitivity analysis was also conducted to account for various future scenarios of energy production. The findings revealed that the building with an exhaust air heat pump exhibited the lowest greenhouse gas emissions and the shortest carbon payback period (GBPT), needing only around 7 years. In contrast, the building with exhaust ventilation without heat recovery showed the highest emissions and the longest carbon payback period (GBPT), requiring approximately 11 years. Notably, the results were significantly influenced by future scenarios of energy production, emphasizing the crucial role of emission factors in determining the environmental performance of distinct renovation scenarios.

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Comparative study of development scenarios to decipher carbon emissions of new/old campuses in China with urban building energy model: A case study of Southeast University

Jiao,

Wei,

Wang

et al. 2024

Build. Simul.

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Does energy-efficient renovation positively impact thermal comfort and air quality in university buildings?

Cited by 6 publications

References 73 publications

Thermal Comfort Assessment in University Classrooms: A Discriminant Analysis for Categorizing Individuals According to Gender and Thermal Preferences

Thermal Comfort Assessment in University Classrooms: A Discriminant Analysis for Categorizing Individuals According to Gender and Thermal Preferences

Greenhouse Gas Payback Time of Different HVAC Systems in the Renovation of Nordic District-Heated Multifamily Buildings Considering Future Energy Production Scenarios

Comparative study of development scenarios to decipher carbon emissions of new/old campuses in China with urban building energy model: A case study of Southeast University

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