Study of the measured and perceived indoor air quality in Swedish school classrooms

Langer, Sarka; Ekberg, Lars; Teli, Despoina; Cabovska, Blanka; Bekö, Gabriel; Wargocki, Paweł

doi:10.1088/1755-1315/588/3/032070

Cited by 7 publications

(5 citation statements)

References 13 publications

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“…Operative temperature was measured in 5-minute intervals with TinyTag TK 4023 temperature sensors placed a in small sphere (ping-pong ball). More detailed description of measurement data collection can be found in [9]. From the measurements, different metrics were extracted for analysis, i.e.…”

Section: Description Of Data Collection and Processingmentioning

confidence: 99%

A study on the relationship between energy performance and IEQ parameters in school buildings

et al. 2021

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Over the last decades, strong focus has been placed on the energy efficiency of buildings; not least school buildings. Energy performance (EP) of buildings is nowadays in principle described by one single indicator based on purchased energy in kWh/year.m2. Another important building performance aspect is the indoor environmental quality. This study’s overarching goal is to identify school buildings with a good balance between energy performance and indoor environment. Thus, this paper investigates possible correlations between information given in energy performance certificates (EPCs/e.g. energy use, year of construction, type of ventilation) and measured indoor environmental parameters. The work comprises investigation of approximately 20 school buildings with different ventilation systems in Gothenburg. In-situ investigations of the buildings’ properties and ventilation systems were conducted. Indoor environmental parameters were recorded during one week in each classroom. In this paper, indoor temperature, absolute humidity added indoors and CO2 concentration data are compared with the corresponding school’s energy performance data and ventilation type. Results suggest that mechanically ventilated buildings have clearer relationships between energy performance, building indicators and measured indoor environment. For buildings such as naturally ventilated, the relationships are usually weak, and the values spread over much wider ranges.

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Section: Description Of Data Collection and Processingmentioning

confidence: 99%

A study on the relationship between energy performance and IEQ parameters in school buildings

et al. 2021

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“…Other harmful pollutants may also be present in these environments, e.g ., ozone (O 3 ), nitrogen oxides (NO x ), volatile organic compounds (VOCs), or particulate matter (PM). Many studies on IAQ have been performed mostly in elementary schools all over the world [ 13 , [40] , [41] , [42] , [43] , [44] ]. However, in secondary schools and universities IAQ studies are less extensive [ 13 , [45] , [46] , [47] , [48] ], and barely provide insights on the thermal comfort for occupants, particularly under ventilation protocols such as those adopted during the COVID-19 pandemic.…”

Section: Introductionmentioning

confidence: 99%

Assessment of indoor air quality and risk of COVID-19 infection in Spanish secondary school and university classrooms

Rodrı́guez

Urbieta²,

Velasco³

et al. 2022

Building and Environment

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“…These values are not significantly different from classrooms in other countries with similar education system standards. On the basis of the data published in the works of other authors, it was established that the average usable area of a classroom was approximately 55 m 2 , whilst the area of classroom per one student was between 1.8-2.4 m 2 /student [3,4,34,[37][38][39][40]57]. According to the European standard EN 16798-1:2019 this value must be at least at the level of 2.0 m 2 /student [58].…”

Section: Educational Buildings and Classroomsmentioning

confidence: 99%

“…In this case, limiting ventilation for the sake of reducing heat loss from heated buildings usually has a negative impact on the quantity and quality of the fresh air and thus on the microclimate of classrooms and effectiveness of the teaching process [3,4,[27][28][29][30][31][32]. Due to the increase in incidences of various types of allergies and asthma in students and teachers, the studies devoted to the quality of school environments have been intensified [4,[32][33][34][35][36][37][38][39][40]. They have concentrated, among other things, on the direct impact of school environments on health deterioration, and have often indicated poor air quantity and quality as the primary cause of such problems.…”

Section: Introductionmentioning

confidence: 99%

The Required Amount of Ventilation Air for the Classroom and the Possibility of Air Infiltration through the Windows

Lis

2021

Energies

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The majority of education buildings in Poland are equipped with natural (gravity) ventilation, where the air inflow depends on the level of window airtightness. A complete statistical urban population of 50 school buildings in Czestochowa have been examined. The main issue to be clarified is the answer to the following questions: Is it theoretically possible to supply enough air to meet the ventilation requirements with gravity ventilation? What is the airtightness of the windows at which it will be possible? The average technical conditions of windows in the analysed buildings were bad. However, only in the case in which high external air leakage coefficient a = 7.0 m3/(h m daPa2/3) (q100KL = 32.4912 m3/(h m) is the amount of air passing through the leaks similar to the quantitative ventilation requirements for classrooms. The quantity of air flowing from the outside through modernized windows that meet the technical requirements (a = 0.6 to 1.0 m3/(m h daPa2/3)) covers on average only about 12% and about 21% of the ventilation needs. Without installing additional vents in the rooms, or better yet, installing mechanical ventilation with heat recovery, meeting the ventilation norm requirements will be impossible.

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Study of the measured and perceived indoor air quality in Swedish school classrooms

Cited by 7 publications

References 13 publications

A study on the relationship between energy performance and IEQ parameters in school buildings

A study on the relationship between energy performance and IEQ parameters in school buildings

Assessment of indoor air quality and risk of COVID-19 infection in Spanish secondary school and university classrooms

The Required Amount of Ventilation Air for the Classroom and the Possibility of Air Infiltration through the Windows

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