Notes

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

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



The calorific value of biomass pellets is 10% lower than medium coal. But biomass pellets can stress out, while coals have 10-15% flammable element left in the coal slag. So in actual use, their calorific worth are the same.

Biomass pellets are much easier 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 fee as well as air pollution. The solid emission of biomass pellets are virtually ash, making up 0.4% ~ 7.0% of the overall weight, while the solid discharge of coal are ash, alkali, and also recurring coal, making up 25% -40% of the total weight.

Coal's pollutant emission as well as corrosion to the boiler is far more major than biomass pellets. Coal smoke includes a great deal of fragment carbons, hazardous SO2, CO as well as other deterioration gas Biomass pellets is mainly made up of C-H organic matters, the gas discharge is mostly C-H unstable gas, with little SO2 or CO discharge. Biomass fuel is referred to as tidy fuel. It can greatly decrease the air contamination and carbon emission.

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



Contrast biomass pellets and also gas.

Expense of biomass pellets and natural gas in central heating boilers

Let's take a 1 load boiler for example. Suppose it need 600,000 calories for 1 hr. I exercise the called for amount of gas and biomass pellets. By multiplying their unit price, we can exercise the overall price As the type show, biomass pellets set you back a lot 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 power is the chemical kind of solar energy. It consists of timber, forestry waste, plant waste, water plant, pet dung, plant wastes. Yearly, the biomass produced by photosynthesis depends on 173 billion bunch, equal to 10-20 times the yearly international energy consumption, yet only 3% of them are used. As long as there is sunshine, the biomass energy will never ever run out.



In some rural areas, natural gas is not readily available. At the same time, with more manufacturing facilities transform coal-fired central heating boilers into gas central heating boiler, the cost of natural gas is going to rise up. By contrast, biomass energy is rich in rural areas. richi pellet are simple to obtain and also refine, which don't take much expense.



The ash residues of timber pellets after burning contains minerals and carbon. It can be used as fertilizer on ranch and in garden. You can gather the ash residues from biomass boilers for future usage.



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

Under the environment defense stress, coal central heating boilers are restricted in many cities. richi pellet mill of factories have switched over to biomass boiler or gas boiler. Here I 'd like to contrast the 3 central heating boilers and identify which is the very best.



Initial investment.

In term of the boilers with the same ability, gas central heating boilers call for the highest possible expense, then comes biomass central heating boiler, and also coal central heating boiler for the last.



Operation expense.


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




Atmosphere result.

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



Application location.

Coal central heating boilers have been limited in numerous cities, or require to be outfitted with desulfurizer. Natural gas supply is not uniform in different locations. Some regions don't have natural gas available, so biomass boilers become their ideal choice.



In conclusion, to meet the environment need, gas central heating boilers and biomass central heating boilers are sensible. Gas boilers have the least exhaust, but the price is the highest possible. Biomass central heating boilers have inexpensive as well as wide application, and also the pollution exhaust is reduced. So it has been preferred in numerous areas.


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