Share

Outdoor air: calculation and delivery.

Author(s) : WARDEN D.

Type of article: Article

Summary

Proposes an extension of the methods of ASHRAE standard 62 1989 and application guidelines. The method in the standard assumes that the supply to each zone has a common outdoor air fraction, an assumption that is not valid for dual fan dual duct systems, fan powered terminal systems or systems with imperfect mixing of the supply air. A calculation method extending the existing ASHRAE formula to handle such systems and allowing for imperfect mixing within zones is presented in the article. This method can provide meaningful results where traditional methods do not. The article also includes background on ventilation for acceptable indoor air quality, discussion of appropriate system parameters and suggestions on how to achieve in practice, what is conceived as theory.

Details

  • Original title: Outdoor air: calculation and delivery.
  • Record ID : 1996-1941
  • Languages: English
  • Subject: Regulation
  • Source: ASHRAE Journal - vol. 37 - n. 6
  • Publication date: 1995/06
  • Document available for consultation in the library of the IIR headquarters only.

Links


See other articles in this issue (1)
See the source

Indexing