(fbc) boiler to heat the Water that is mixed with a refractory material.
With warming water temperatures will produce refractory materials that will ignite the oil in the water.
The granular refractory materials are mixed with water.
Refractory materials are heated in water to take it.
c) boiler column. The steam comes out vertically.
A) horizontal boiler. The steam comes out horizontally.
cyclone is used for to recycle the unburnt and heavy particles into com-buster
loop seal is provided to stop the material from furnace to return leg back.It works with the help of diffrential pressure.There is the difference in the pressure of air beteen furnace and return leg.
Cfbc stands for circulating fludised bed combustion where as afbc is for atmospheric fluidise bed combustion afbc bed fluidising velocity is approx 4 m/s and in cfbc boiler fluidising velocity is 9-10 m/s. cfbc having low SOx & NOx comparative with afbc cfbc having higher efficiency up to 98.5 % then afbc boiler,cfbc boiler power consumption is more comparative to afbc.
Utility Boilers Industrial Boilers CFBC Boilers HRSG
how we calculate the coal consumed to generate xxx MW say 12 hrs or 24 hrs in CFBC boiler please help
CFBC was created on 1946-11-21.
The boiler in which fluidisation and combustion is done in the bed with the help of (pa,sa&ta)air and ash(un burnt particle) is re-used through cyclone and siphone to the bed is called cfbc boiler.
Circulating fluidised bed combustion
Differential pressure in a Circulating Fluidized Bed Combustion (CFBC) boiler refers to the difference in pressure between two points within the system, typically across the bed of the boiler. This pressure difference is crucial for maintaining the proper flow of gas and solid particles, ensuring efficient combustion and heat transfer. Monitoring differential pressure helps in optimizing the operation of the boiler, as it can indicate changes in bed density, flow resistance, or potential blockages. Maintaining the appropriate differential pressure is essential for the overall performance and efficiency of the CFBC boiler.
cyclone is used for to recycle the unburnt and heavy particles into com-buster
The wall seal blower in a Circulating Fluidized Bed Combustion (CFBC) boiler serves to maintain a proper seal between the combustion chamber and the external environment. By creating a slight negative pressure, it prevents the escape of flue gases and ensures efficient combustion by maintaining the required airflow. Additionally, it helps to enhance the overall efficiency of the boiler by optimizing the circulation of the bed material and improving the combustion process.
Main difference between hot cyclone and cold cyclone is 1. In hot cyclone flue gas temperature is above 800'c., in cold cyclone is is 400 to 500'c. 2. For 3-pass boiler we are used hot cyclone. 3. In reheater system we use hot cyclone to improve the efficiency of boiler.
drum level maintain at48to52% O2 4% id draft _2to+2
1300 mmWc @ full load