Notes

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


The burning efficiency of biomass fuel is similar with medium coal, but it have such benefits over coal:



The calorific value of biomass pellets is 10% less than medium coal. However biomass pellets can stress out, while coals have 10-15% combustible element left in the coal slag. So in real usage, their calorific worth are the same.


Biomass pellets are less complicated to fire up than coals, which can reduce the starting time largely.

The solid discharge of biomass pellets is lower than coal. It can minimize the slag discharge cost and also air contamination. The strong exhaust of biomass pellets are nearly ash, accounting for 0.4% ~ 7.0% of the complete weight, while the solid discharge of coal are ash, antacids, and also residual coal, making up 25% -40% of the complete weight.

Coal's pollutant emission and rust to the central heating boiler is even more significant than biomass pellets. Coal smoke has a great deal of bit carbons, harmful SO2, carbon monoxide and other corrosion gas Biomass pellets is primarily composed of C-H organic matters, the gas discharge is mostly C-H unstable gas, with little SO2 or CO exhaust. Biomass fuel is referred to as clean fuel. It can significantly lower the air pollution and carbon discharge.

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



Contrast biomass pellets and gas.

Cost of biomass pellets and also natural gas in boilers

Allow's take a 1 load central heating boiler for example. Intend it require 600,000 calories for 1 hr. I work out the required quantity of natural gas and also biomass pellets. By multiplying their unit cost, we can exercise the complete cost As the type show, biomass pellets cost a lot lower than gas.



Kcal/kg pricerequired quantitytotal price.

gas 9000 ￥ 3.6/ m366m3 ￥ 238.

biomass pellets4200 ￥ 900/t 140kg ￥ 126.



Gas is a non-renewable source, like coal as well as oil. Biomass power is the chemical kind of solar power. It includes wood, forestry waste, plant waste, water plant, animal dung, plant wastes. Every year, the biomass produced by photosynthesis depends on 173 billion bunch, equal to 10-20 times the yearly international power intake, but only 3% of them are used. As long as there is sunshine, the biomass power will certainly never go out.



In some backwoods, gas is not offered. Meanwhile, with even more factories change coal-fired central heating boilers right into natural gas central heating boiler, the rate of natural gas is mosting likely to rise. By contrast, biomass power is rich in rural areas. They are simple to get and process, which don't take much expense.



The ash deposits of wood pellets after shedding has minerals and also carbon. It can be utilized as plant food on farm and also in garden. You can gather the ash deposits from biomass central heating boilers for future usage.



Comparison of biomass central heating boiler, gas central heating boiler, and coal boiler.

Under the atmosphere security pressure, coal boilers are limited in lots of cities. Lots of manufacturing facilities have actually switched over to biomass boiler or gas central heating boiler. Here I would love to compare the 3 boilers and also identify which is the best.



Preliminary financial investment.

In regard to the central heating boilers with the very same capability, gas boilers require the highest price, after that comes biomass central heating boiler, and coal boiler for the last.



Operation cost.

In terms of procedure cost, gas boiler > coal boiler > biomass central heating boiler. The gas rate differs in various areas, greater than biomass as well as coal. biomass pellet maker of biomass as well as coal are comparable, yet as coal boilers have reduced efficiency, the procedure cost is greater than biomass boiler.



Environment result.

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



Application area.

Coal boilers have actually been limited in several cities, or need to be outfitted with desulfurizer. Gas supply is not uniform in different areas. Some regions do not have natural gas available, so biomass boilers become their ideal selection.



In conclusion, to satisfy the atmosphere requirement, gas central heating boilers as well as biomass central heating boilers are practical. Gas central heating boilers have the least discharge, however the cost is the highest possible. richi pellet have inexpensive and also wide application, as well as the contamination exhaust is reduced. So it has actually been preferred in several locations.


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