Location of General Exhaust to Create Displacement Flow

4 Location of General Exhaust to Create Displacement Flow 

When special contaminating processes are located in a semi-eiiclo.sed part of a room like in Fig. 8.49, the exhausts should be located so that a displacement flow is created through the passage into the semi-enclosure. 

Wtrh rhis arrangement there may be no need for a door, which may be very practical. 

Aitltn, and J. M. Kane, Design of Industrial Ventilation Systems, 5th ed.. New York Indus-roallVss, 1982. 

FIGURE B.4B In stmified sir. we can create separate zones in a large enclosure, using the therinai lid as a roof above the zones. 

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