Abstract
Pneumatic and Hydraulic Systems in Coal Fluidized Bed Combustor
Highlights
A number of industrial processes such as lime, ceramic tiles, calcinations, cement, Kaolin, aggregates and black powder explosive production utilize combustors
The function of hydraulic system is to convert the residual energy in coal into usable state as in coal fired thermal plants and fluidized bed combustors
Proper design of pneumatic and hydraulic systems can influence the efficiency of any combustor
Summary
A number of industrial processes such as lime, ceramic tiles, calcinations, cement, Kaolin, aggregates and black powder explosive production utilize combustors. Proper design of pneumatic and hydraulic systems can influence the efficiency of any combustor. Coal particles in fluidized state have more exposed surface area to combustion and offer good heat transfer properties in a combustor. Air enters the bed through holes into bed materials between hot fluidized zone and the plate forming the plenum chamber. This can made from mild steel plate, which requires an open area sufficient to cause pressure drop. Air distributor was required to provide uniform distribution for the bed materials used in fluidized bed combustion. The pressure drop about 12% across the bed was required to provide the uniform distribution for the beds in fluidized combustion[7]
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