Notes

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

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



The calorific value of biomass pellets is 10% lower than medium coal. But 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 less complicated to stir up than coals, which can reduce the starting time mainly.

The solid discharge of biomass pellets is lower than coal. It can decrease the slag discharge fee and also air contamination. The solid emission of biomass pellets are almost ash, accounting for 0.4% ~ 7.0% of the total weight, while the solid discharge of coal are ash, antacids, and recurring coal, making up 25% -40% of the complete weight.

Coal's toxin exhaust and also deterioration to the central heating boiler is even more severe than biomass pellets. Coal smoke includes a great deal of fragment carbons, hazardous SO2, CO and other corrosion gas Biomass pellets is primarily composed of C-H raw materials, the gas exhaust is primarily C-H unpredictable gas, with little SO2 or CO emission. Biomass fuel is referred to as clean fuel. diy pellet mill can substantially decrease the air contamination and also carbon exhaust.

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



Contrast biomass pellets and also gas.

Price of biomass pellets and also natural gas in boilers

Let's take a 1 load central heating boiler for example. Expect it require 600,000 calories for 1 hour. I exercise the called for quantity of natural gas and also biomass pellets. By multiplying their system price, we can work out the complete cost As the type program, biomass pellets set you back much less than natural gas.



Kcal/kg pricerequired quantitytotal price.

natural 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 form of solar power. It includes wood, forestry waste, crop waste, marine plant, animal dung, plant wastes. Each year, the biomass created by photosynthesis depends on 173 billion lot, equal to 10-20 times the annual worldwide energy intake, but only 3% of them are utilized. As long as there is sunlight, the biomass energy will certainly never ever go out.



In some rural areas, natural gas is not offered. On the other hand, with more factories transform coal-fired central heating boilers right into natural gas boiler, the price of natural gas is going to rise up. By comparison, biomass power is abundant in rural areas. They are easy to obtain and also refine, which do not take much expense.



The ash deposits of wood pellets after melting includes minerals as well as carbon. It can be used as plant food on ranch and in yard. You can accumulate the ash deposits from biomass boilers for future usage.



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

Under the environment security pressure, coal central heating boilers are restricted in many cities. pellet press have changed to biomass central heating boiler or gas central heating boiler. Here I want to contrast the 3 central heating boilers and identify which is the best.



First investment.

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



Procedure cost.

In terms of operation cost, gas boiler > coal central heating boiler > biomass central heating boiler. The gas rate varies in various areas, higher than biomass as well as coal. The price of biomass and coal are similar, yet as coal central heating boilers have lower performance, the operation expense is higher than biomass boiler.



Atmosphere impact.

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



Application location.

Coal boilers have actually been limited in lots of cities, or require to be geared up with desulfurizer. Natural gas supply is not uniform in different locations. Some areas don't have natural gas readily available, so biomass boilers become their finest option.



Finally, to fulfill the setting need, gas boilers and biomass boilers are sensible. Gas boilers have the least discharge, but the expense is the highest possible. Biomass central heating boilers have inexpensive and also large application, and the air pollution emission is reduced. So it has been prominent in numerous areas.


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