Notes

Compare biomass fuel with coal and gas<br>
Compare biomass fuel with coal

The burning performance of biomass fuel is comparable with tool coal, yet it have such benefits over coal:



The calorific worth of biomass pellets is 10% less than tool coal. But biomass pellets can burn out, while coals have 10-15% flammable component left in the coal slag. So in actual use, their calorific worth are the same.

Biomass pellets are simpler to spark than coals, which can reduce the starting time mainly.

The solid discharge of biomass pellets is lower than coal. It can lower the slag discharge charge as well as air pollution. The solid exhaust of biomass pellets are almost ash, accounting for 0.4% ~ 7.0% of the total weight, while the solid emission of coal are ash, alkali, and also residual coal, making up 25% -40% of the overall weight.

Coal's pollutant discharge as well as deterioration to the boiler is much more serious than biomass pellets. Coal smoke consists of a great deal of fragment carbons, hazardous SO2, carbon monoxide and various other corrosion gas Biomass pellets is primarily made up of C-H raw materials, the gas exhaust is mostly C-H volatile gas, with little SO2 or carbon monoxide discharge. Biomass fuel is referred to as tidy fuel. It can greatly reduce the air pollution and carbon emission.

Fostering of biomass fuel in boilers can save time and expense than coals. A 0.5 t boiler can conserve 10% fuel cost and 16% time with biomass pellets than coal.



Compare biomass pellets and also natural gas.

Cost of biomass pellets and also gas in central heating boilers

Let's take a 1 load central heating boiler as an example. Mean it require 600,000 calories for 1 hr. I work out the needed amount of natural gas and biomass pellets. By increasing their device cost, we can work out the overall expense As the kind show, biomass pellets cost much less than gas.



Kcal/kg pricerequired quantitytotal price.

natural gas 9000 ￥ 3.6/ m366m3 ￥ 238.


biomass pellets4200 ￥ 900/t 140kg ￥ 126.



Natural gas is a non-renewable source, like coal as well as oil. Biomass energy is the chemical kind of solar energy. It consists of wood, forestry waste, crop waste, water plant, pet dung, plant wastes. Yearly, Richi machine generated by photosynthesis is up to 173 billion ton, equal to 10-20 times the yearly global power intake, however just 3% of them are used. As long as there is sunshine, the biomass energy will certainly never run out.



In some backwoods, natural gas is not offered. Meanwhile, with even more manufacturing facilities change coal-fired central heating boilers right into gas boiler, the rate of natural gas is mosting likely to rise up. By comparison, biomass power is rich in backwoods. They are very easy to obtain as well as refine, which do not take much expense.



The ash deposits of timber pellets after burning has minerals and also carbon. It can be made use of as plant food on ranch and also in garden. You can collect the ash residues from biomass boilers for future usage.



Contrast of biomass central heating boiler, gas central heating boiler, as well as coal central heating boiler.

Under the setting defense stress, coal central heating boilers are limited in numerous cities. Richi machine have switched to biomass boiler or gas boiler. Below I wish to contrast the 3 central heating boilers and figure out which is the most effective.



First investment.

In regard to the boilers with the exact same capacity, gas central heating boilers call for the highest possible cost, after that comes biomass central heating boiler, and also coal central heating boiler for the last.




Operation price.

In terms of operation cost, gas boiler > coal boiler > biomass central heating boiler. The gas cost differs in various locations, more than biomass and coal. The price of biomass and also coal are similar, yet as coal central heating boilers have lower effectiveness, the procedure price is more than biomass central heating boiler.



Atmosphere effect.

In regards to environmental management, gas boiler > biomass central heating boiler > coal boiler. Gas central heating boilers embrace natural gas as fuel, biomass boilers adopt biomass pellets or briquettes. Coal boilers produce the highest air pollution, including SO2, CARBON MONOXIDE, ash, alkali, and so on. Biomass central heating boilers arere environmental-friendly than coals. It only create C, H unstable gases, as well as little ash deposits.



Application area.

Coal boilers have actually been restricted in numerous cities, or need to be equipped with desulfurizer. Natural gas supply is not uniform in various areas. Some areas do not have gas readily available, so biomass central heating boilers become their ideal selection.



Finally, to meet the atmosphere demand, gas central heating boilers and also biomass boilers are feasible. Gas central heating boilers have the least emission, however the cost is the highest. Biomass central heating boilers have inexpensive as well as broad application, as well as the air pollution emission is low. So it has actually been popular in many areas.


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