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Fig. 10.10: Extraction of air from a compressor room with a
BOGE screw-type compressor, emitting the air into
the open | Compressor rooms containing individual units can usually be cooled by an appropriately arranged exhaust ventilator or by natural ventilation. When there are several compressors set up in one installation room, the use of cool-air ducts is always recommended.
When ducts are fitted, the installation room is not heated as much by waste heat from the compressor.
The difference in temperature Dt between the inlet and outlet air is approx. 20 K. The flow speed in the outlet ducts should not exceed 6m/s. The cross section (radius) required for the duct is therefore much smaller than the wall aperture when using natural or artificial ventilation. |