Notes

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

The burning efficiency of biomass fuel is comparable with medium coal, however it have such advantages over coal:



The calorific worth of biomass pellets is 10% lower than medium coal. Yet biomass pellets can wear out, while coals have 10-15% combustible element left in the coal slag. So in real usage, their calorific worth coincide.

Biomass pellets are easier to stir up than coals, which can shorten the starting time greatly.

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

Coal's toxin emission as well as deterioration to the central heating boiler is even more serious than biomass pellets. Coal smoke contains a great deal of bit carbons, harmful SO2, CO and also other deterioration gas Biomass pellets is primarily made up of C-H organic matters, the gas discharge is mostly C-H volatile gas, with little SO2 or carbon monoxide discharge. Biomass fuel is know as clean fuel. It can substantially lower the air contamination and carbon emission.

Adoption of biomass fuel in central heating boilers can save time and expense than coals. A 0.5 t boiler can save 10% fuel cost as well as 16% time with biomass pellets than coal.



Contrast biomass pellets and natural gas.

Cost of biomass pellets and also gas in boilers

Allow's take a 1 bunch boiler for example. Mean it require 600,000 calories for 1 hour. I exercise the called for amount of natural gas and also biomass pellets. By increasing their unit price, we can work out the complete cost As the kind show, biomass pellets cost a lot lower than gas.




Kcal/kg pricerequired quantitytotal expense.

natural gas 9000 ￥ 3.6/ m366m3 ￥ 238.

biomass pellets4200 ￥ 900/t 140kg ￥ 126.



Gas is a non-renewable resource, like coal and also oil. Biomass power is the chemical form of solar energy. It includes wood, forestry waste, plant waste, aquatic plant, animal dung, plant wastes. Annually, the biomass produced by photosynthesis is up to 173 billion heap, equal to 10-20 times the annual worldwide energy consumption, but only 3% of them are made use of. As long as there is sunlight, the biomass power will never ever go out.



In some rural areas, natural gas is not offered. Meanwhile, with more factories transform coal-fired boilers right into gas boiler, the cost of natural gas is mosting likely to rise up. By contrast, biomass power is rich in backwoods. They are very easy to acquire as well as process, which do not take much price.



The ash deposits of wood pellets after shedding contains minerals as well as carbon. It can be made use of as plant food on ranch as well as in garden. You can accumulate the ash residues from biomass boilers for future use.



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

Under the setting defense stress, coal central heating boilers are limited in lots of cities. Several manufacturing facilities have switched to biomass central heating boiler or gas central heating boiler. Below I would love to compare the 3 boilers as well as determine which is the most effective.



Preliminary financial investment.

In regard to the boilers with the exact same capability, gas central heating boilers call for the highest possible expense, then comes biomass boiler, and coal boiler for the last.



Operation expense.


In terms of procedure cost, gas boiler > coal boiler > biomass central heating boiler. The gas cost varies in various locations, greater than biomass and also coal. The rate of biomass and also coal are similar, but as coal central heating boilers have reduced performance, the procedure expense is more than biomass boiler.



Atmosphere result.

In regards to environmental protection, gas central heating boiler > biomass boiler > coal boiler. Gas central heating boilers take on gas as fuel, biomass boilers adopt biomass pellets or briquettes. Coal central heating boilers create the highest possible air pollution, consisting of SO2, CO, ash, antacids, and so on. Biomass boilers arere environmental-friendly than coals. It only generate C, H unstable gases, and also little ash residues.



Application location.

Coal central heating boilers have actually been restricted in lots of cities, or need to be geared up with desulfurizer. Gas supply is not uniform in different areas. Some regions do not have gas available, so biomass central heating boilers become their best choice.



To conclude, to fulfill the atmosphere demand, gas central heating boilers and biomass central heating boilers are viable. home pellet maker have the least emission, but the cost is the greatest. Biomass central heating boilers have inexpensive and also wide application, and the air pollution discharge is reduced. So it has actually been preferred in several locations.


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