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A comparison of room air motion in a full size test room using different diffusers and operating conditions.

Author(s) : HAWKINS A. N., HOSNI M. H., JONES B. W.

Summary

Proper distribution of conditioned air plays an important role in both the comfort of the occupants and the air quality of ventilated or air-conditioned spaces. The objective of this study was to gather accurate experimental data using two different types of diffusers under different operating conditions for the determination of both the fluid dynamics and thermal characteristics of air motion present in a realistic room. It was observed that the two different diffusers perform quite differently under the same operating conditions. The high side wall grille introduced more air into the occupied zone of the room than did the linear slot ceiling diffuser. This difference directly affected both the fluid dynamics and thermal characteristics in the room. In addition, operating under cooling or isothermal conditions also affected the jet behaviour.

Details

  • Original title: A comparison of room air motion in a full size test room using different diffusers and operating conditions.
  • Record ID : 1996-3645
  • Languages: English
  • Source: ASHRAE Transactions.
  • Publication date: 1995/06/24
  • Document available for consultation in the library of the IIR headquarters only.

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