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Evaluating the ventilation effect of different ventilation types on occupant air exchange efficiency.

Author(s) : ZHAO B., LI X., WU J.

Summary

Evaluation of the ventilation effect and indoor air quality in ventilated rooms is very important for ventilation system design. Air-exchange efficiency is widely used to indicate ventilation effect and IAQ; however, it does not take into account occupant distribution in the room and thus is limited. The authors have proposed a revised air exchange efficiency, that is, the occupant air exchange efficiency, to indicate the ventilation effect by considering different occupancies. This paper employs occupant air exchange efficiency to evaluate the ventilation effect of four ventilation types, and two different occupant distributions are considered. Ten cases including side-up supply and side-low return, ceiling supply and side-low return, personalized ventilation and displacement ventilation, are studied.

Details

  • Original title: Evaluating the ventilation effect of different ventilation types on occupant air exchange efficiency.
  • Record ID : 2006-3053
  • Languages: English
  • Source: ASHRAE Transactions. 2005 Annual Meeting, Denver, Colorado, USA. Volume 111, part 2 + CD-ROM.
  • Publication date: 2005

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