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Impact of ventilation modes on carbon dioxide concentration levels in Kuwait classrooms
Highlights ► Quantitative information about the IAQ conditions inside Kuwait's classrooms has offered. ► The CO2 levels inside classrooms during the NV and AC ventilation modes were measured. ► The performance and productivity for Kuwaiti students’ have been estimated. ► Some potential strategies were explored to reduce CO2 levels inside the classrooms. ► Centralized air-conditioning, may offer improved IAQ combined with thermal comfort.
Abstract The influence of ventilation mode on classroom air quality in the State of Kuwait is reported. In this field study, CO2 concentration levels were measured during natural and air-conditioned ventilation modes inside 10 elementary-level classrooms in three Kuwaiti schools occupied by children in the 6–10 years age group. The findings show that these classrooms have lower average CO2 concentration levels (708ppm) during the natural ventilation mode compared to that in the air-conditioned mode (1596ppm). The latter CO2 concentrations are higher than recommended in several standards, and suggest that classrooms operation in the air-conditioned mode requires further investigation. Air-conditioning is provided by wall-mounted split units that do not directly introduce fresh air to the space, so some form of appropriate additional ventilation is suggested. Following rapid and extensive national refurbishment of schools in the early 1990s, these types of installations are widespread, and results found here may apply elsewhere in Kuwait. Based on the measured findings, approaches are explored for potentially reducing classroom CO2 levels, though these require validation. Fuller investigation is required of air quality in Kuwait school classrooms in relation to a number of factors. Findings have been communicated to the Kuwait Ministry of Education (MOE).
Impact of ventilation modes on carbon dioxide concentration levels in Kuwait classrooms
Highlights ► Quantitative information about the IAQ conditions inside Kuwait's classrooms has offered. ► The CO2 levels inside classrooms during the NV and AC ventilation modes were measured. ► The performance and productivity for Kuwaiti students’ have been estimated. ► Some potential strategies were explored to reduce CO2 levels inside the classrooms. ► Centralized air-conditioning, may offer improved IAQ combined with thermal comfort.
Abstract The influence of ventilation mode on classroom air quality in the State of Kuwait is reported. In this field study, CO2 concentration levels were measured during natural and air-conditioned ventilation modes inside 10 elementary-level classrooms in three Kuwaiti schools occupied by children in the 6–10 years age group. The findings show that these classrooms have lower average CO2 concentration levels (708ppm) during the natural ventilation mode compared to that in the air-conditioned mode (1596ppm). The latter CO2 concentrations are higher than recommended in several standards, and suggest that classrooms operation in the air-conditioned mode requires further investigation. Air-conditioning is provided by wall-mounted split units that do not directly introduce fresh air to the space, so some form of appropriate additional ventilation is suggested. Following rapid and extensive national refurbishment of schools in the early 1990s, these types of installations are widespread, and results found here may apply elsewhere in Kuwait. Based on the measured findings, approaches are explored for potentially reducing classroom CO2 levels, though these require validation. Fuller investigation is required of air quality in Kuwait school classrooms in relation to a number of factors. Findings have been communicated to the Kuwait Ministry of Education (MOE).
Impact of ventilation modes on carbon dioxide concentration levels in Kuwait classrooms
Al-Rashidi, Khaled (author) / Loveday, Dennis (author) / Al-Mutawa, Nawaf (author)
Energy and Buildings ; 47 ; 540-549
2011-12-20
10 pages
Article (Journal)
Electronic Resource
English
Impact of ventilation modes on carbon dioxide concentration levels in Kuwait classrooms
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