Turbulence intensity and air velocity characteristics in a slot ventilated space

Róbert Goda
2014 Periodica Polytechnica: Mechanical Engineering  
The determination of turbulence intensity and air velocity distribution in the ventilated spaces is very important from the point of view of discomfort caused by draught. In most cases, in slot ventilated spaces tangential air distribution system is applied. There are several references investigating the discomfort caused by draught in ventilated spaces. However, most of these studies do not consider the exact type of the air distribution system. Another relevant question is how average 40 [%]
more » ... how average 40 [%] turbulence intensity given in standard EN 13779 for designing depends on the tangential air distribution. In this paper the turbulence intensity and air velocity distribution were experimentally investigated in case of applying tangential air distribution system. Results showed that turbulence intensity and air velocity distribution depend on the air distribution system. Furthermore, average 40 [%] turbulence intensity given in the standard is not always relevant.
doi:10.3311/ppme.7154 fatcat:izo5ueqtujdobknge4joqqtfgy