Notes

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

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



The calorific value of biomass pellets is 10% lower than tool coal. Yet 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 simpler to ignite than coals, which can reduce the starting time greatly.

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

Coal's contaminant exhaust and rust to the boiler is far more significant than biomass pellets. Coal smoke contains a lot of particle carbons, hazardous SO2, CO and other deterioration gas Biomass pellets is mostly composed of C-H organic matters, the gas emission is generally C-H unstable gas, with little SO2 or carbon monoxide exhaust. Biomass fuel is know as tidy fuel. It can significantly minimize the air contamination and carbon exhaust.

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



Contrast biomass pellets as well as gas.

Cost of biomass pellets and also natural gas in central heating boilers

Allow's take a 1 heap central heating boiler as an example. Suppose it need 600,000 calories for 1 hour. I exercise the called for quantity of natural gas and biomass pellets. By increasing their system rate, we can work out the total expense As the form show, biomass pellets cost much less 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 oil. Biomass energy is the chemical type of solar energy. It consists of wood, forestry waste, crop waste, water plant, pet dung, plant wastes. Annually, the biomass produced by photosynthesis is up to 173 billion bunch, equal to 10-20 times the yearly global energy usage, however only 3% of them are utilized. As long as there is sunshine, the biomass energy will certainly never go out.



In some backwoods, gas is not available. On the other hand, with more factories transform coal-fired central heating boilers right into natural gas boiler, the cost of natural gas is going to rise up. By comparison, biomass energy is abundant in rural areas. They are very easy to obtain and also refine, which don't take much cost.



The ash deposits of timber pellets after shedding consists of minerals and also carbon. It can be utilized as plant food on farm and in garden. poultry feed making machine price can collect the ash residues from biomass boilers for future usage.



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

Under the setting security pressure, coal central heating boilers are limited in numerous cities. Several factories have changed to biomass boiler or gas boiler. Here I want to compare the 3 central heating boilers and identify which is the most effective.



Initial financial investment.

In term of the central heating boilers with the very same capacity, gas boilers require the highest possible expense, after that comes biomass boiler, as well as coal boiler for the last.





Operation cost.

In regards to operation expense, gas central heating boiler > coal boiler > biomass central heating boiler. The gas rate varies in different areas, greater than biomass and also coal. The rate of biomass and also coal are comparable, however as coal central heating boilers have reduced performance, the procedure expense is greater than biomass central heating boiler.



Setting result.

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



Application location.

Coal boilers have actually been restricted in many cities, or need to be equipped with desulfurizer. Natural gas supply is not uniform in different locations. Some areas do not have gas readily available, so biomass central heating boilers become their finest option.



In conclusion, to meet the atmosphere requirement, gas boilers and biomass boilers are sensible. Gas central heating boilers have the least emission, however the expense is the highest. Biomass boilers have inexpensive and also vast application, as well as the air pollution discharge is reduced. So hay pellet machine has actually been popular in numerous locations.


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