IEQ assessment in free-running university classrooms

Papadopoulos, Giannis; Tolis, Evangelos I.; Panaras, Giorgos

doi:10.1080/23744731.2022.2052519

Cited by 8 publications

(8 citation statements)

References 56 publications

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“…, 2019), visual comfort (Serghides et al. , 2015), acoustic comfort (Ricciardi and Buratti, 2018), indoor air quality (Papadopoulos et al. , 2022) and facility comfort (Yang and Mak, 2020).…”

Section: Introductionmentioning

confidence: 99%

The impact of IEQ in the university lecture theatres on students’ concentration levels in London

Lyu,

Pitt,

Broyd

2024

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Purpose University students’ lecture theatre concentration levels are significantly related to indoor environmental quality (IEQ). The purpose of this study is to investigate the relationship between indoor environmental quality (IEQ) and the self-reported concentration levels of university students during the winter at University College London (UCL), UK. Design/methodology/approach A questionnaire survey and physical measurements were used to assess the IEQ factors affecting students’ concentration levels. Findings The lecture theatre design factor was the most significant factor influencing students’ concentration levels, and the facility environment was more important than the thermal environment, indoor air quality, and acoustic environment in influencing students’ concentration levels in this winter investigation at UCL, UK. Additionally, students prefer a colder thermal environment. The concentration level of students was positively correlated with the indoor air quality and negatively correlated with the acoustic environment. Practical implications Based on model application, this research could provide lecture theatre IEQ design. This research additionally provides an acceptable indoor thermal environment temperature range based on a large sample, which can be used to calibrate a student performance benchmark. Originality/value As this study evaluates the IEQ factors that influence the concentration levels of university students, interior designers and engineers should consider the rational layout of these factors. Therefore, this study may provide a reference for the interior environmental design of lecture theatres in educational buildings.

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Section: Introductionmentioning

confidence: 99%

The impact of IEQ in the university lecture theatres on students’ concentration levels in London

Lyu,

Pitt,

Broyd

2024

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“…The investigation of indoor environmental parameters (IEQ) of educational buildings, and especially universities, presents high interest (Papadopoulos et al, 2022;Akanmu et al, 2021;Zuhaib et al, 2018), as the maintaining of comfort and healthy indoor climate can positively affect the occupants' learning performance and participation in the educational procedure (Astolfi and Pellerey, 2008;Corgnati et al, 2007). After the appearance of the Covid-19, these types of buildings gather even greater research interest, especially for the new conditions of ventilation that are formed due to the intense crowding that is observed (Gil-Baez et al, 2021;Di Gilio et al, 2021;Park et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

Theoretical and experimental investigation of ventilation rates and their relation with IAQ and thermal comfort in university classrooms during SARS-COV-2 pandemic

Papadopoulos,

Nikolentzos,

Tolis

et al. 2023

IOP Conf. Ser.: Earth Environ. Sci.

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During the pandemic of Covid-19, ventilation rate of buildings and especially in spaces with high occupancy like classrooms, presents high research interest. The ventilation strategies, combined with the use of masks, contribute to the decrease of the infection risk of Covid-19. Also, ventilation improves Indoor Air Quality (IAQ), contributing to the good health of the users and potentially influences their thermal comfort. In the proposed work, the experimental investigation of the ventilation’s adequacy in naturally ventilated classrooms located at the University of Western Macedonia, in Kozani, Greece, took place. Measurements include thermal comfort parameters, as well as IAQ ones, namely carbon dioxide (CO2), volatile organic compounds (VOCs), aldehydes and ozone (O3). The air exchange rates were determined according to the tracer gas decay and equilibrium analysis methods, using CO2 as tracer gas, while simulations analysis using appropriate computational approaches was applied. The results between tracer gas method and simulation analysis were compared, allowing the validation of the adopted models. Given that for both approaches natural ventilation proved to be inadequate, different simulated scenarios of ventilation, including natural and mechanical configuration, were investigated; the relation of ventilation rates to IAQ and thermal comfort was investigated. Moreover, the infection risk, given the determined or simulated IAQ, was assessed, according to relevant approaches.

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“…The quality of the indoor environment is determined by a set of factors such as temperature, humidity, levels of air pollutants, noise, lighting and ventilation conditions [5][6][7]. The way that the occupants of a building perceive this set of factors i.e., perceived air quality, is linked to their sense of comfort in the workplace and productivity as well as to the way that these factors affect their health.…”

Section: Introductionmentioning

confidence: 99%

Air Quality Versus Perceived Comfort and Health in Office Buildings at Western Macedonia Area, Greece during the Pandemic Period

et al. 2023

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This study investigated the indoor environment quality (IEQ) of eight office buildings of interest due to: (a) their location at the region of Western Macedonia, Greece, which is an area characterized by aggravated air quality and is currently in a transition phase because of changes in the energy production strategy to reduce the use of lignite as an energy fuel; and (b) the survey’s timing, characterized by new working conditions implemented during the COVID-19 pandemic period. In-site measurements were performed to identify the indoor air pollutants to which the occupants were exposed, while questionnaires were collected regarding the participants’ perception of the working environment conditions, indoor air quality, and health symptoms. The statistical analysis results showed that the most-reported health symptoms were headache, dry eyes, and sneezing. The acceptance of new working conditions showed a significant correlation with their overall comfort and health perception. Occupants in offices with higher pollutant concentrations, such as NO2, benzene and toluene, were more likely to report health symptoms. The evaluation of the plausible health risks for the occupants of the buildings with carcinogenic and no-cancer models showed that health problems could exist despite low pollutant concentration levels.

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IEQ assessment in free-running university classrooms

Cited by 8 publications

References 56 publications

The impact of IEQ in the university lecture theatres on students’ concentration levels in London

The impact of IEQ in the university lecture theatres on students’ concentration levels in London

Theoretical and experimental investigation of ventilation rates and their relation with IAQ and thermal comfort in university classrooms during SARS-COV-2 pandemic

Air Quality Versus Perceived Comfort and Health in Office Buildings at Western Macedonia Area, Greece during the Pandemic Period

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