| Originalsprog | Engelsk |
|---|---|
| Titel | IIR-Joint Meeting |
| Antal sider | 8 |
| Udgivelsessted | Aalborg |
| Forlag | Institut for Bygningsteknik, Aalborg Universitet |
| Publikationsdato | 1981 |
| Status | Udgivet - 1981 |
| Udgivet eksternt | Ja |
| Begivenhed | IIR-Joint Meeting, Commission E1 - Essen, Tyskland Varighed: 11 sep. 1981 → … |
Konference
| Konference | IIR-Joint Meeting, Commission E1 |
|---|---|
| Land/Område | Tyskland |
| By | Essen |
| Periode | 11/09/1981 → … |
Bibliografisk note
The supply jets in Ventilated rooms will aften create a recirculating flow as shown in a typical example in fig. 1. The wall jet from the supply opening follows the ceiling and entrains air from the occupied zone givingan air mavement which involves a flow many times bigger than the supply flow, and the velacity in the wall jet will accordingly decrease to a suitable
level when it reaches the occupied zone. It is obvious that contaminant from sources in the occupied zone, e.g. welding smoke, will be spread over the
whole room by the ventilation system, and it is therefore important to describe
the relations between the design of the air supply system, location of
contaminant sources and the concentration which will be formed in different
areas of the room.
The results given in this article concern two-dimensional isathermal air movement. Many air supply systems create two-dimensional wall jets at
same distance from the openings, and an evenly distributed contaminant source as deseribed in section 3 may also have important practical relevance. The line sources provided in section 4 may be seldom used in practice but the results give qualitative information about the importance of the location of the source.