A comparison of an underfloor air distribution system and a mixing system: Measurements and CFD simulations

L. Zhou, M. P. Wan, C. Y.H. Chao, F. Haghighat

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

2 Citations (Scopus)

Abstract

The main objective of this study is to compare the performance of an Underfloor Air Distribution (UFAD) system with that of a mixing ventilation system (MS) in a controlled environment chamber. Velocity and temperature data collected were used for the validation of a computational fluid dynamics (CFD) model. Simulations were then performed using the RNG k-ε turbulence model and the indoor zero-equation turbulence model to examine the applicability of those two models to the present problem. Based on that measured data and simulation results were employed to examine the ventilation efficiency and thermal comfort level resulting from the two ventilation systems. The criteria for air quality and thermal comfort evaluation include: the Air Change Effectiveness (ACE), Predicted Mean Vote (PMV), room air temperature stratification, and air velocity.

Original languageEnglish
Title of host publicationHB 2006 - Healthy Buildings
Subtitle of host publicationCreating a Healthy Indoor Environment for People, Proceedings
Pages299-304
Number of pages6
Publication statusPublished - 2006
EventHealthy Buildings: Creating a Healthy Indoor Environment for People, HB 2006 - Lisboa, Portugal
Duration: 4 Jun 20068 Jun 2006

Publication series

NameHB 2006 - Healthy Buildings: Creating a Healthy Indoor Environment for People, Proceedings
Volume4

Conference

ConferenceHealthy Buildings: Creating a Healthy Indoor Environment for People, HB 2006
Country/TerritoryPortugal
CityLisboa
Period4/06/068/06/06

Keywords

  • Air quality
  • CFD
  • MS
  • Thermal comfort
  • Turbulence models
  • UFAD

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction
  • Health, Toxicology and Mutagenesis

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