How does Afbc boiler work?
How does Afbc boiler work?
afbc boiler is suitable for combustion of low quality fuel . Inert fluidized bed is heated to the ignition temperature of fuel and fuel is supplied continuously into the bed. The fuel burn rapidly and the bed attain a uniform temperature. In afbc boiler combustion is take place at about 850- 950 degree Celsius.
How does a boiler operate?
Hot jets that are linked to a heat exchanger within the boiler transfer heat to the water that flows over the exchanger. An electric pump then pushes the hot water through to your radiators and taps. All new boilers are condensing. This heat is then used to heat water that returns from your central heating system.
What is CFBC boiler details?
The Circulating Fluidized Bed Combustion(CFBC) boiler is the most advanced steam generatortechnology. Among many distinguishable advantages of CFBC boilers, itachievesvery low NOx and Sox emission by capturing sulfur contents of the fuel during the burning process.
How steam boiler systems work?
In steam heating systems, a boiler furnace heats water by means of a gas or oil-fired burner and turns it into steam. The steam travels through pipes to radiators or convectors, which give off heat and warm the room. As the steam cools, it condenses back into water, and returns to the boiler to be heated again.
What is DP test in Afbc boiler?
8-What do you mean by DP test in AFBC Boilers? It is the test carried out before the light up of Boiler to ensure the healthiness of air nozzle & bed plate.
What is full form of Afbc boiler?
There are three basic types of fluidised bed combustion boilers: 1. Atmospheric classic Fluidised Bed Combustion System (AFBC) 2. Atmospheric circulating (fast) Fluidised Bed Combustion system(CFBC) 3.
What is water steam cycle?
Central to understanding the operation of steam propulsion is the basic steam cycle, a process in which we generate steam in a boiler, expand the steam through a turbine to extract work, condense the steam into water, and finally feed the water back to the boiler.
What is bed height in Afbc boiler?
afbc boiler working principle | afbc boiler start-up procedure. Enter the bed material into the combustion furnace. The bed height is to be around 250 to 300 mm above the nozzles.
What is differential pressure in boiler?
The differential pressure signal is normally elevated, electrically or pneumatically, so the output signal corresponds to the level in the boiler. 0% of water in the level glass corresponds to 4 mA (3 psi) and 100% corresponds to 20 mA (15 psi).
What is Afbc power plant?
Atmospheric Fluidized Bed Combustion (AFBC) technology involves burning sulfur-containing fuel particles suspended in an air stream. Although AFBC technology typically is applied to new heating plants, it may also be used for retrofit.
What is AFBC boiler?
AFBC boiler is a very developing technology now these days this technology is widely used in the industrial boiler for the purpose of efficient and clean burning of coal and other fuel for steam generation. afbc boiler is suitable for combustion of low quality fuel .
Is atmospheric fluidised bed combustion (AFBC) an alternative to coal fired boilers?
One of these advanced technologies is Atmospheric Fluidised Bed Combustion (AFBC), which promises to provide a viable alternative to conventional coal fired and other solid fuel fired boilers for utility and industrial applications.
What is the maximum capacity of a CFBC boiler?
¡ Capacity: Up to 75 TPH, Pressure: Up to 66 bar (g), Temp: Up to 480°C Support Fuels: High ash, coal,imported coal, bagasse ¡Washery rejects firedin AFBC & CFBC boilers ¡Petcoke firedin AFBC & CFBC boilers Circulating Fluidized Bed Combustion Boiler (CFBC)
How does an AFBC work?
In AFBC, coal is crushed to a size of 1 – 10 mm depending on the rank of coal, type of fuel feed and fed into the combustion chamber. The atmospheric air, which acts as both the fluidization air and combustion air, is delivered at a pressure and flows through the bed after being preheated by the exhaust flue gases.
