Fluidized Bed Combustion (FBC Boiler) “Fluidized bed combustion (FBC) is a combustion technology used to burn solid fuels.”. A bed of solid particles is said to be fluidized when the pressurized fluid (liquid or gas) is passed through the medium and causes the solid particles to behave like a fluid under certain conditions.. Fluidization causes the transformation of the state of solid particles from …

04-03-2020· Horizontal type FBC : There are almost 10 times in capacity when compared to vertical type fluidized bed combustion. They can produce as much as 60 tonnes of steam per hour, and are placed horizontally with respect to the boiler tubes.

20-02-2017· Types of Fluidized Bed Combustion (FBC) Fluidized Bed combustion can be in 2 variants, namely :- Vertical type FBC: These are generally used in smaller plant, and has the capacity to produce steam

09-01-2018· High Modulation Rate: - Can work at 20-100% capacity without problems Low Steam Cost: - Low fuel cost with the cheap powder lignite - Low electricity consumption - Short start-up time - Low diesel

In Fluidized Bed Combustion Boiler technology When air or gas is passed through an inert bed of solid particles such as sand supported on a fine mesh or grid, the air initially will seek a path of least resistance and pass upward through the sand. With further increase in the velocity, the air bubbles through the bed and the particles attain a state of high turbulence. Under such conditions, the bed assumes the …

There are two types of fluidized beds: in bubbling fluidized beds the bed particles are kept in suspension at relatively low fluidization velocities whereas in circulating fluidized beds, particles are carried out of the bed at higher fluidization velocities and are separated in a cyclone and reintroduced back into the bed.

15-01-2019· There are three types of fluidized bed combustion boilers: 1. Atmospheric fluidized bed combustion system (AFBC) or Bubbling fluidized bed combustion (BFBC) AFBC is atmospheric fluidized bed combustion, where the furnace pressure is atmospheric pressure and velocity of fluidized air is in the range of 1.2 to 3.7 m/sec.

ADVERTISEMENTS: In this article we will discuss about:- 1. Introduction to FBCs 2. Principle of Working of Fluidised Bed Combustion 3. Types 4. Pressurized Bubbling Fluidized Bed Boiler (PBFB) 5. Advantages. Contents: Introduction to FBCs Principle of Working of Fluidised Bed Combustion Types of FBC Systems Pressurized Bubbling Fluidized Bed Boiler (PBFB) Advantages of FBC […]

· PDF fileFBC boilers: Introduction, Mechanism of fluidised bed combustion, Advantages, Types of FBC boilers, Operational features, Retrofitting FBC system to conventional boilers, Saving potential. 6.1 Introduction The major portion of the coal available in India is of low quality, high ash content and low calorific value. The traditional grate fuel firing systems have got limitations and are techno-eco- nomically unviable to …