Experimental assessment of the impact of natural ventilation on indoor air quality and thermal comfort conditions of educational buildings in the Eastern Mediterranean region during the heating period

Heracleous, C.; Michael, Aimilios

doi:10.1016/j.jobe.2019.100917

Cited by 92 publications

(57 citation statements)

References 33 publications

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“…Ventilation variables evidenced the major influence in academic performance at Universidade da Coruña. Concerning manual windows-airing during lessons, a direct correlation with GPA is indicated, supporting previous results suggesting that proper ventilation habits achieve better air quality [39]. However, when this action is performed at the end of the lesson, classrooms are empty, because of the breaks between different courses.…”

Section: Discussionsupporting

confidence: 82%

Architectural Indoor Analysis: A Holistic Approach to Understand the Relation of Higher Education Classrooms and Academic Performance

2019

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The influence of learning space on users has been broadly accepted and tested. However, the literature has focused on single factor research, instead of holistic approaches. Additionally, lower educational levels have been the focus of interest, while higher education is moving towards multi-method teaching. This paper focuses on how learning spaces for different purposes (practice and lecture rooms) may influence academic performance from a holistic approach of learning physical environment perception. For this, the iPEP scale (Indoor physical environment perception) is used and validated through Cronbach Alpha and Exploratory Factorial Analysis. Then, multiple linear regression is conducted. The results indicate that iPEP measures near to 63 percent of the construct, which is structured in six factors. Moreover, linear regression analyses support previous literature concerning the influence of learning physical environment on academic performance (R 2 = 0.154). The differences obtained between practice and lecture room in terms of predictor variables bring to the light the need to diagnose learning environments before designing changes in educational buildings. This research provides a self-reported way to measure indoor environments, as well as evidence concerning the modern university, which desires to combine several teaching methods.These studies provide evidence that acoustic comfort is fundamental to support sustainable learning environments, which implement active pedagogies [15].Illumination combines artificial lighting and daylight to offer visual support and it influences visual perception, cognitive processing, behaviour, learning and academic performance [16][17][18]. Therefore, lighting design perspectives should be task-driven, as well as focusing on comfort to human health and perception [19]. Appropriate levels of visual comfort have been evidenced to improve social relations [20]. While daylight helps students to retain and learn information [21], long exposure to artificial lighting may cause stress and lead to irritability [22]. Buildings are highly artificial lighting dependent, as there was no concern about energy efficiency when educational facilities were designed, and nowadays represent a major factor of energy consumption.In traditional learning, the views through windows are considered as distractor, which may explain the lack of daylight through windows, despite its importance for children [23], who distinguish lighting requirements given the task performed. Nature inspires students through its aesthetic value and entails a restorative effect on the mind, which fosters concentration [24]. It stabilizes students' psychology and reduces their negative emotions [25], and leads to a proactive knowledge of the natural environment. This fact may foster a culture in which life-based learning is a must and encourage positive social interaction [26]. Landscape views and walls with living plants are correlated with better academic results [27,28] and may reduce stress [29], whilst increasing le...

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Section: Discussionsupporting

confidence: 82%

Architectural Indoor Analysis: A Holistic Approach to Understand the Relation of Higher Education Classrooms and Academic Performance

2019

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“…Studies have shown that in addition to hazardous construction materials, the fungal growth on some materials in the presence of humidity threatens the health of residents due to respiratory and allergic diseases [ [17] , [18] , [19] ]. Poisoning as a result of tobacco smokes, exposure to formaldehyde (gas) from furniture products [ 15 , 16 , 19 ], mould growth in energy-efficient buildings [ 20 ], and the relationship between CO2 levels and indoor air ventilation [ [21] , [22] , [23] , [24] ] illustrate the indoor air quality can affect the health.…”

Section: Introductionmentioning

confidence: 99%

COVID-19 and healthy home preferences: The case of apartment residents in Tehran

Zarrabi

Yazdanfar

Hosseini

2021

Journal of Building Engineering

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“…Researchers deal with this problem, however, there is no comprehensive approach. Some elements of diagnostics can be found e.g., in the work of Meiss et al [36] who used combined numeric simulations, ANSYS Fluent and Engineering Equation Solver EES, with on-site pressurization tests or in the study of Heracleous and Michael [37], where CO 2 concentration measurements and the fan pressurization method to determine the air change rate in school building Mediterranean region are presented.…”

Section: Introductionmentioning

confidence: 99%

Thermal Diagnostics of Natural Ventilation in Buildings: An Integrated Approach

Ferdyn-Grygierek¹,

Baranowski²,

Błaszczok³

et al. 2019

Energies

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Diagnostics of natural ventilation in buildings is problematic, as the airflow rate changes considerably over time. One constant average airflow is usually assumed when calculating energy demand for a building, however, such a simplification could be fraught with considerable error. The paper describes a comprehensive methodology for the diagnostics of a natural ventilation system in a building and its practical application. Based on in situ measurements and simulations in two existing buildings (dwelling house and school) in Poland, the real values of the ventilating airflows were analyzed and resulting heat demand was compared with the design values. The pros and cons of various methods for evaluation of natural ventilation are discussed. The real airflow was determined by measurements in a ventilation grille or by a tracer gas concentration decay method. The airtightness of the buildings’ envelope was evaluated based on the fan pressurization test. The last stage entailed computer simulations of air exchange in buildings using CONTAM software. The multizone models of the buildings were calibrated and verified with existing measured data. Measured airflow in a multifamily house was small and substantially deviated from the Polish standard. In case of a school, the air flow rate amounted to an average of 10% of the required value. Calculation of the heat demand for ventilation based on the standard value of the airflow led to a considerable overestimation of this value in relation to the real consumption. In the analyzed cases, the difference was 40% for the school and 30% for the residential building.

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Experimental assessment of the impact of natural ventilation on indoor air quality and thermal comfort conditions of educational buildings in the Eastern Mediterranean region during the heating period

Cited by 92 publications

References 33 publications

Architectural Indoor Analysis: A Holistic Approach to Understand the Relation of Higher Education Classrooms and Academic Performance

Architectural Indoor Analysis: A Holistic Approach to Understand the Relation of Higher Education Classrooms and Academic Performance

COVID-19 and healthy home preferences: The case of apartment residents in Tehran

Thermal Diagnostics of Natural Ventilation in Buildings: An Integrated Approach

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