Is the air change efficiency sufficient to assess the removal of airborne contamination in mixing ventilation?
Chapter, Peer reviewed, Conference object
Published version
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https://hdl.handle.net/11250/2976123Utgivelsesdato
2021Metadata
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- SINTEF Proceedings [402]
Sammendrag
This investigation analyze the correlation between two common methods to assess the ventilation effectiveness: An averaged contamination removal effectiveness (CRE) value based on the residual lifetime and the air change efficiency (ACE) to better understand their relationship to then give a recommendation for the IAQ-assessment of ventilation designs. The present numerical investigation puts focus on a simple mixing ventilation scenario with different conditions: air change rate, specific heat flux, supply air diffuser and exhaust position. Statistically, the results show a significant correlation. A detailed consideration, especially for the partial load range, will be necessary to for a valide determination of removing airborne contamination