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Experimental study on the floor-supply displacement ventilation system

Conference ·
OSTI ID:211851
 [1]; ;  [2]
  1. Shimizu Corp., Tokyo (Japan). Technology Development Center
  2. Shimizu Corp., Tokyo (Japan)

These results are presented from a research project to investigate the effects of a floor-supply displacement ventilation system with practical indoor heat loads. The experiments were performed in an experimental chamber (35.2 m{sup 2}) located in a controlled environment chamber. Temperature distributions were measured at seven heights throughout the experimental chamber for each test condition. Data were analyzed to observe thermal stratification as affected by lighting, occupants, and heat loads (personal computers), and its disruption caused by walking and change of air volume. In addition, airflow characteristics and ventilation efficiencies were investigated using a smoke machine, tobacco smoke, dust for industrial testing, and a tracer gas (CO{sub 2}) step-up procedure.

OSTI ID:
211851
Report Number(s):
CONF-950624--
Country of Publication:
United States
Language:
English

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