FBC boiler Flashcards

1
Q

What is FBC boiler capacity ?

A

0.5 TPH - 75 TPH

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2
Q

What is the meaning of FBC?

A

Fludized Bed Combustion

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3
Q

what are the advantages of of FBC boilers?

A

a. Fuel Flexibility
b. Emission performance
c. re-use of non-hazardous by-products ( e.g. gypsum) and
d. possibility of the technology to be implemented in an existing plant

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4
Q

What is packed bed?

A

A fluidized bed consists of a stream of gas flowing upward through a bed of solid particles such as ash or sand. At low gas flow rates, the gas permeates through the bed without disturbing the particles and is called a packed bed.

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5
Q

What is Fluidized Bed Combustion?

A

A fluidized bed combustion boiler is one where combustion takes place over a fluidized bed.

If the sand in a fluidized state is heated to the ignition temperature of the coal and the coal is injected continuously into the bed, the coal will burn rapidly and the bed attains a uniform temperature due to effective mixing.
This, in essence, is fluidized bed combustion

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6
Q

Overall Efficiency of FBC boiler

A

84%

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7
Q

Combustion efficiency of FBC boiler

A

95%

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8
Q

Temperature range of FBC boiler

A

750 - 900 Deg C

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9
Q

Types of Fluidized bed Combustion boiler

A
  1. BFB ( bubbling Fluidised bed) or AFBC ( Atmospheric Classic Fluidised bed combustion
  2. CFBC ( Circulation fluidised bed combustion)
  3. PFBC ( Pressurised Fluidised bed combustion)
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