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Analytical prediction of carbon dioxide concentrations in variable air volume systems.

Author(s) : SELMAN S., DYER D.

Summary

A typical commercial/institutional building is modelled using a computer program developed by ASHRAE as research project number RP-590. The RP-590 program output was used as input in a separate program written to calculate the CO2 concentration levels in the various zones of this typical building on an hourly basis for a one year cycle. This data allow one to see how VAV A/C systems affect the CO2 levels in each zone as the VAV boxes modulate in response to the thermal load. The CO2 concentration has been suggested to be a good indicator of indoor air quality (IAQ) in typical commercial and institutional settings. IAQ is a hot legal liability issue in the building industry. The results show that a VAV A/C system, that is adequate in all other respects, can adversely affect the indoor air quality of the building. Factors responsible for this are discussed and recommendations and limitations are given for the utilization of this work.

Details

  • Original title: Analytical prediction of carbon dioxide concentrations in variable air volume systems.
  • Record ID : 2008-2616
  • Languages: English
  • Source: Clima 2007. WellBeing Indoors. Proceedings of the 9th REHVA World Congress [CD-ROM + Abstract book].
  • Publication date: 2007/06/10

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