The Effect of Different Air Inlet Sizes on the Air Flow through a Stairwell

S. Ergin-Ozkan, M. R. Mokhtarzadeh-Dehghan*, A. J. Reynolds

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

The effect of airflow through an opening (or a crack) on the natural convection in a stairwell model is presented. The flow is driven by energy input from an electric panel heater located in the lower floor of the stairwell. The work con centrates on the effect of the size of inlet opening by varying it while keeping the area of the outlet constant. New data are presented for the measured tem peratures and velocities at various cross-sections of the stairwell. The results also include gross parameters of the flow, such as the mass flow rates of the throughflow and recirculating flow, heat losses from the lower and upper floors and also from the stairway. The results show that the size of the opening has a significant effect on the flows of mass and energy within, and through, the stairwell.

Original languageEnglish
Pages (from-to)350-359
Number of pages10
JournalIndoor and Built Environment
Volume2
Issue number5-6
DOIs
Publication statusPublished - Sept 1993
Externally publishedYes

Keywords

  • Air flow
  • Building
  • Buoyancy
  • Crack
  • Openings
  • Stairwell

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