DIFFERENCE BETWEEN AFBC AND CFBC BOILER PDF

Dear all, please tell me what is different between AFBC BOILER amp CFBC BOILER. Difference Between AFBC And CFBC Boilers. The CFBC boiler has more advantages than AFBC boiler. a. High efficiency. (fbc) boiler to heat the Water that is mixed with a refractory material. With warming water temperatures will produce refractory materials that will.

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Split and merge into it. In under bed feeding coal size crushed approx mm which is throw from conveyer to combustion panel.

With warming water temperatures will produce refractory materials that will ignite the oil in the water. Boilers that utilize fluid-bed combustion burn fuels at lower temperatures are more efficient and can burn fuels other than coal.

To prevent this erosion a thin layer of refractory covers the lower half of the furnace, upper transition areas and the cyclone. Generally the Phosphate dozing is done in the drum of the boiler. Main difference between hot cyclone and cold cyclone is 1. In a AFBC boiler a differencee more fluidized bedcombustor is added than a conventional sh … ell boiler. Most of the coal fired power plants use the Pulverized Coal PC firing technology.

The granular refractory materials are mixed with water. The total air for combustion and the balanced draught system is the same in both the systems.

The steam comes out horizontally. Difference between hot cyclone and cold cyclone in cfbc? It works with the help of btween pressure. Would you like to make it the primary and merge this question into it? Working of cfbc boiler? What is cfbc boiler? Choose a video to embed. CFBC boiler operation procedure?

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Comparison of Circulating Fluidized Bed Boiler and Pulverized Coal Boiler

The furnace and the cyclones in the CFB boilers are subject to a lot of erosion due betweeh the circulation of particles like ash and sand. In over b … ed system coal is carried by conveyer belt from bunker to spreader that’s time coal size approx mm crushed. The technology is proven and is in use for nearly a century. PC fired boilers do not have refractory covering on the furnace tubes or other heat transfer areas.

What is diffrent between afbc and cfbc boiler?

In CFB boiler limestone addition in the furnace reduces the Sulphur Dioxide during combustion itself. There is the difference in the pressure of air beteen … furnace and return leg. With warming water temperatures will produce refractory materials that will ignite the oil in the wa … ter.

In hot cyclone flue gas temperature is above ‘c.

This requires only a simple limestone storage and handling unit. The time energy and facility required to crush coal is much lesser than pulverizing coal. Cfbc boiler full form? How do you lightup afbc boiler? What is afbc boiler? In cfbc boiler fuel system like a very important funtion of in all process. Merge this question into. Fuel feeding in cfbc boilers? Refractory materials are heated in water to take it.

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The water and steam circuit, the natural circulation of water and heat transfer surfaces are all the same in both the systems. What is the function of cyclone in cfbc boiler?

CFBC boiler process and their advantage over AFBC boiler – ASKPOWERPLANT

The key differences are listed below. This type of fuel feeding system accept over size of fuel also. PC firing utilises coal ground to a very fine powder sprayed into the furnace for combustion.

Fluidized beds suspend solid fuels on vertically blowing jets of ai … r hetween the combustion process.

CFB uses coal crushed to sizes of around 3 to 6 mm. Differences between afbc and cfbc boilers? For 3-pass boiler we … are used hot cyclone. What is the purpose of phosphate dosing in AFBC boilers? Now these days have some boiler have both feeding system.

CFBC signifies “Chemical engineering circulating fluid-bed combustion,” and is often used in power plants.

Would you like to merge this question into it? Advances over the bokler have improved the efficiency of combustion, reliability and reduced emissions. In compared with under feeding system this is more reliable. The steam comes out vertically. Circulating fluidised bed combustion.

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