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Supply air terminal devices and ventilation effectiveness.

Terminali per la diffusione dell'aria ed efficienza di ventilazione.

Author(s) : BASSO R. A.

Summary

The ventilation rate provided in the Standard UNI 10339 leaves the kind of installation and the air diffusion system out of consideration; in fact the ventilation rate really involved in internal pollutant dilution fluctuates as a function of the air-diffusion system. To consider this effect, in the reviewing of the standard, the concept of ventilation effectiveness has been introduced; it supplies a type of measurement of the ventilation air flow really used for indoor pollutant dilution, compared with the total supply air flow. As use of a qualitative index to express pollutant dilution would be difficult to carry out, a thermal index designed to put the diffuser air induction performance in touch with the air mixing one is proposed. Ventilation effectiveness becomes a parameter for air diffuser selection that considers their performances, in order to achieve the best indoor air quality.

Details

  • Original title: Terminali per la diffusione dell'aria ed efficienza di ventilazione.
  • Record ID : 2006-2007
  • Languages: Italian
  • Subject: Regulation
  • Source: Qualità ambientale e soluzioni sostenibili. 43e Convegno Internazionale AICARR [CD-ROM]./ Environmental quality and sustainable technology. 43rd International conference of AICARR [CD-ROM].
  • Publication date: 2002/03/07

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