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Floor-Supply Displacement Ventilation System.


PB2005102843

Publication Date 2004
Personal Author Chen, Q.; Lau, J.; Kobayashi, N.
Page Count 128
Abstract This research is to improve the design of the floor-supply displacement ventilation system for the removal of a high cooling load without draft risk. The research will propose measures to reduce cross contamination among workers in large offices and workshops. More specifically, the objective of the research is to: Improve the design of the floor-supply displacement ventilation system for a higher cooling load while the system can still provide an acceptable comfort level and can be energy effective; Optimize the ventilation system to minimize the risk of cross contamination with suitable air supply and exhaust locations. The study will assess the indoor air quality, thermal comfort, and energy consumption of the floor-supply displacement ventilation system. The parameters to be studied include the diffuser type, perforated degree, ventilation rate, supply air temperature, exhaust location, floor insulation, ceiling height, furniture and partition arrangement, etc. The research will use numerical simulations through Computational Fluid Dynamics (CFD) technique to reduce the costs. Nonetheless, detailed and high quality experimental data will be obtained in a full-scale environmental chamber, and the data will be used to validate the CFD results.
Keywords
  • Ventilation systems
  • Displacement
  • Temperature
  • Air velocity
  • Air flow
  • Thermal comfort
  • Indoor air quality
  • Computational fluid dynamics
  • Diffusers
  • Energy consumption
  • Floor-supply displacement ventilation systems
Source Agency
  • National Institute for Occupational Safety and Health
Corporate Authors Purdue Univ., West Lafayette, IN. School of Mechanical Engineering.; National Inst. for Occupational Safety and Health, Washington, DC.
Supplemental Notes Sponsored by National Inst. for Occupational Safety and Health, Washington, DC.
Document Type Technical Report
Title Note Final rept. (30 Sep 01-29 Sep 04).
NTIS Issue Number 200513
Floor-Supply Displacement Ventilation System.
Floor-Supply Displacement Ventilation System.
PB2005102843

  • Ventilation systems
  • Displacement
  • Temperature
  • Air velocity
  • Air flow
  • Thermal comfort
  • Indoor air quality
  • Computational fluid dynamics
  • Diffusers
  • Energy consumption
  • Floor-supply displacement ventilation systems
  • National Institute for Occupational Safety and Health
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