Air distribution and temperature control in classrooms.
Author(s) : KURNITSKI J., AALTO M.
Summary
Air distribution solutions for classrooms aiming to lower air velocities and good temperature control are studied by measurements in 6 schools and temperature simulations. Air velocity measurements showed good performance of duct and ceiling diffusers which provided maximum velocities less than 0.2 m/s and can be highly recommended for classrooms. The wall diffusers were clearly not suitable for classrooms due to high velocities up to 0.43 m/s. Displacement ventilation diffusers were very sensitive to supply air temperature, as with the temperature difference of 3°C velocities up to 0.28 m/s were measured. Room temperature measurement results showed a typical problem with temperature control as at the end of the heating season the temperatures up to 25°C were measured. The parametric simulations showed that high supply air flow rates up to 10 L/s per person and cool supply air down to 14-15°C were needed for room temperature control.
Details
- Original title: Air distribution and temperature control in classrooms.
- Record ID : 2008-2685
- Languages: English
- Source: Clima 2007. WellBeing Indoors. Proceedings of the 9th REHVA World Congress [CD-ROM + Abstract book].
- Publication date: 2007/06/10
Links
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Indexing
- Themes: Indoor air quality
- Keywords: Velocity (fluids, gases); Ventilation; Temperature; Air quality; School; Air conditioning; Air distribution
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- Source: ICR 2007. Refrigeration Creates the Future. Proceedings of the 22nd IIR International Congress of Refrigeration.
- Formats : PDF
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- Date : 2014/06
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- Source: REHVA Journal - vol. 51 - n. 4
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