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ANALYSIS OF ENERGY-SAVING CAUSED BY USING BIOMASS FUEL IN COAL-FIRED BOILERS
EVALUATION OF ENERGY-SAVING BROUGHT ON BY UTILIZING BIOMASS FUEL IN COAL-FIRED BOILERS

ANALYSIS AND ALSO COMBUSTION FEATURES OF BIOMASS FUELS

The supposed biomass fuel is a fuel that consists of natural products such as plant products and pet waste, and is the brand-new name for the earliest fuel. Generally talking, we claim that the chaff, timber cutting, stem-shaped crops, peanut coverings, bark, sawdust, and so on, are the fuels typically used in the farming society in the past.

As the market establishes slowly, it is abandoned, today it is discovered that these fuels are generated. The contamination is much less than the major fuel of contemporary sector - coal. So in the past couple of years there have actually been numerous central heating boilers devoted to biomass fuels, as well as lots of coal-fired central heating boilers have actually been converted into biomass fuels, yet couple of instances of fuels can be completely made use of.

The volatile issue as well as H material of biomass fuel are high, indicating that it is very easy to shed and burns fast. It can adapt to central heating boilers with high water-cooling conditions in the heating system, and also at the same time generate more flue gas than coal, so the heater is better than common coal-fired boiler. Bigger.


It is likewise because of the high web content of volatile matter and H, a huge amount of water vapor is generated in the fuel, a big amount of warmth is soaked up, and the C content is relatively small, so the low calorific value of the biomass fuel is reasonably reduced. The exact same boilers, such as fuel, are biomass, which requires almost two times as much fuel as bituminous coal.

Biomass fuel advancement and also burning features

Biomass fuels are prominent as a byproduct of agricultural and also forestry items. Making use of biomass fuels is a process that transforms waste right into prize. Biomass fuels come from a large range of resources and are easily available for central heating boilers in the agro-processing sector. China affixes excellent value to the development and utilization of bioenergy.

Biomass fuel pellet items are still seldom made use of in China. We are primarily melting directly, as well as the fuel burning standing is not confident, and also the fuel calorific worth use is still extremely low.


Because biomass fuel itself is taken into consideration to be waste application, it is not taken seriously from the administration of the company to the administration of the government for its genuinely efficient use.

Condition of biomass fuel used in coal-fired central heating boilers

In the huge rural areas, the products we used to call biomass fuels were melted in the fields and used as plant foods to make white smoke all over in the field as well as pollute the environment.

When using biomass fuel, most of these devices of use do not utilize the biomass fuel, so the boiler room is usually "smoke-smoke" when shedding, the fuel is piled up indiscriminately, and the application of fuel calorific value is very low.

The soot created during the burning process typically obstructs the flue, creating the boiler to shed on the normal fire, creating waste, and also the central heating boiler outcome is frequently insufficient.

Thermal performance test of coal-fired boilers using biomass fuel The central heating boiler thermal efficiency simple examination is a method to gauge the thermal effectiveness of the central heating boiler using boiler thermal back-balance.

The so-called central heating boiler thermal counterbalance is to gauge the power loss of various components and also kinds of boiler procedure, and also subtract the portion of these energy losses to obtain the central heating boiler thermal effectiveness.

This approach can better discover the bottom line of energy waste in the central heating boiler operation procedure, as well as can grasp the trick to resolve the central heating boiler power effectiveness problem through detection as well as analysis, so regarding suggest options according to local problems.

5 Recommendations on utilizing coal-fired boilers to enhance boiler thermal efficiency According to the above power loss detection, the main energy effectiveness problems of many coal-fired central heating boilers making use of biomass fuel are:

1. The exhaust gas temperature is extremely high, generally reaching above 400 ° C, as well as the main biomass fuel continues to shed in the tail pipe;

2. The heat loss of the gas is not totally melted, and also the carbon monoxide web content of the tail flue gas is high. press a pellet to the traveling of the fuel, the local oxygen supply is doing not have, so that the gas is not completely melted.

3. The warmth loss of the strong insufficient combustion is high, also due to the fuel flying. And also melt, and also some do not melt entirely into the smokeshaft.

About these issues, the adhering to central heating boiler reform propositions are recommended:

1. Strictly control the air volume and furnace unfavorable stress, minimize the flue gas circulation rate, as well as reduce the fuel trembling speed.

2. Expand the heating system volume to boost the fuel amount to ensure that the result will certainly not be due to the use of biomass. The fuel is undoubtedly reduced, all the furnace arches are gotten rid of, the biomass is simple to fire up, the heater arc is not extremely efficient, and the ash deposit is tiny, and also the grate elevation can additionally be decreased.

3. small pellet maker is included at the departure of the heating system to obstruct a huge amount of fuel from flying away. As well as raise the oxygen content in the smoke course to make sure that the burning can proceed efficiently.

Conclusion

With the large application of biomass fuels, the re-election of coal-fired boilers with biomass fuels has actually become particularly essential. The industrialization of biomass fuels will additionally be developed. It is beneficial to China's present power application structure and is conducive to power conserving. The fundamental nationwide plan of consumption.


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