Induced Draft Fan Design Calculation

Induced draft id fan is used to draw the flue gases from the system generated from the combustion of fuel.

Induced draft fan design calculation.

Differences such as efficiency or flow rate occur in the type of fan due to particular design advantages that favour one characteristic over another. Induced draft fan or id fan is required to evacuate the exhaust gases from boiler to atmosphere through duct collectors and chimney. Usually id should take care of draft loss across the boiler from furnace to air heater and then draft loss across duct collectors like esp wet scrubber or mechanical type cyclone dust collectors etc. Impeller axial centrifugala sirocco etc.

There are a number of fan types. D sizing calculations of id fan. The induced draft id fans and forced draft fd fans provide control for draft and forced air zoning of fuel burned furnaces of steam generation plant of a thermal power plant. Motor power required for its working depends upon the following factors id fan capacity quantity of flue gases drawn from the system measured in m 3 hr.

Verification of design of draught fans a induced draft fan given. All of which have individual benefits volume pressure speed power efficiency etc but all of them will shift gases at the same rate based upon the input power. Flue gas volume mcr 169 000 cu. To describe the general operation of callide c power station with special attention to boiler section pertaining to induced draft id fan operations.

Induced draft id fan lubrication system and recommend a cost effective and reliable design for a future modification project.