CFB Boiler Design, Operation and Maintenance

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In comparison to a bubbling fluidized bed (BFB) boiler, a circulating fluidized bed (CFB) boiler has a higher gas velocity (superficial flow velocity) in the furnace (combustor). To improve combustion reaction, the boiler activates a mixture of particles and gas. To capture sulphur released by coal combustion, atmospheric fluidized beds use limestone or dolomite. During combustion, air jets suspend the sorbent and burning coal mixture, converting it into a suspension of red-hot particles that flow like a fluid. Atmospheric pressure is used in these boilers.

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Contents in CFB Boiler Design, Operation and Maintenance

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1. Introduction to CFB

2. Hydrodynamic of CFB

3. Combustion in CFB

4. Heat Transfer in CFB

5. Basic design of CFB

6. Operation

7. Maintenance

8. Basic Boiler Safety

9. Basic CFB control.

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