Models for prediction of temperature difference and ventilation effectiveness with displacement ventilation

Xiaoxiong Yuan, Qingyan Chen, Leon R. Glicksman

Research output: Journal article publicationConference articleAcademic researchpeer-review

30 Citations (Scopus)

Abstract

Displacement ventilation may provide better indoor air quality than mixing ventilation. Proper design of displacement ventilation requires information concerning the air temperature difference between the head and foot level of a sedentary person and the ventilation effectiveness at the breathing level. This paper presents models to predict the air temperature difference and the ventilation effectiveness, based on a database of 56 cases with displacement ventilation. The database was generated by using a validated CFD program and covers four different types of U.S. buildings: small offices, large offices with partitions, classrooms, and industrial workshops under different thermal and flow boundary conditions. Both the maximum cooling load that can be removed by displacement ventilation and the ventilation effectiveness are shown to depend on the heat source type and ventilation rate in a room.

Original languageEnglish
Pages (from-to)PART 1/-
JournalASHRAE Transactions
Volume105
Publication statusPublished - 1999
EventProceedings of the 1999 ASHRAE Winter Meeting - Chicago, IL, USA
Duration: 23 Jan 199927 Jan 1999

ASJC Scopus subject areas

  • Building and Construction
  • Mechanical Engineering

Fingerprint

Dive into the research topics of 'Models for prediction of temperature difference and ventilation effectiveness with displacement ventilation'. Together they form a unique fingerprint.

Cite this