Forced draught

Forced draught

Air Conditioning

Published in Fred Hall, Roger Greeno, Building Services Handbook, 2017

Mechanical fan draught cooling provides absolute control over the air supply, operating independently of fickle weather and wind direction. Fan draught cooling towers are of two types: Forced draught – similar in construction and operating principle to the natural draught tower, but with one or more low-level fans to force air through the tower.Induced draught – a large high-level fan draws or induces air flow through the tower. The relatively large single fan is more economic in use and less likely to generate system noise and vibration.

Industrial tests of co-combustion of alternative fuel with hard coal in a stoker boiler

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Journal Information

Published in Journal of the Air & Waste Management Association, 2021

Ryszard Wasielewski, Krzysztof Głód, Janusz Lasek

The boiler used for testing was type WR-25, manufactured by SEFACO S.A. This is a high-temperature water-tube boiler equipped with a furnace and movable mechanical grate. The boiler operates in conditions of forced draught and blowing, using two air fans and two flue gas fans. The basic fuel for this boiler is finely sized hard coal.

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Air Conditioning

Industrial tests of co-combustion of alternative fuel with hard coal in a stoker boiler