Share

Experimental investigation on the local air age and air distribution of stratum ventilation.

Author(s) : WANG F., LI Y., LIU X., et al.

Summary

Because of the multiple problems on high energy consumption and unbalanced thermal comfort caused by the traditional ventilation system, a new concept of ventilation (stratum ventilation) has been proposed which sends the fresh air to the breathing zone directly. In this paper the local air distribution of the displacement ventilation and the stratum ventilation in a model office were measured. The air age in the breathing zone for the displacement ventilation and stratum ventilation were compared with the tracer gas concentration decay method. The decay curves of tracer gas concentration for these two ventilation systems in the breathing zone were obtained and the air ages were calculated. The experimental results show that the stratum ventilation system can offer lower air age for four mechanically ventilated cases in the breathing zone, furthermore, it can provide better thermal comfort, which renews the air of breathing zone more quickly and reduces the energy consumption in some degree. The experimental investigation provides a theoretical basis for the application of a stratum ventilation system.

Available documents

Format PDF

Pages: pp. 512-517

Available

  • Public price

    20 €

  • Member price*

    15 €

* Best rate depending on membership category (see the detailed benefits of individual and corporate memberships).

Details

  • Original title: Experimental investigation on the local air age and air distribution of stratum ventilation.
  • Record ID : 2010-0886
  • Languages: English
  • Source: ACRA-2009. The proceedings of the 4th Asian conference on refrigeration and air conditioning: May 20-22, 2009, Taipei, R.O.C.
  • Publication date: 2009/05/20

Links


See other articles from the proceedings (102)
See the conference proceedings

Indexing