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Why is biomass a much better choice to natural gas?<br>
Competitors in between biomass gas as well as natural gas

Recently, the application of biomass gas is boosting. In lots of locations, there arise competitions in between biomass fuels and gas. In this passage, I will take boiler burning for instance, and also contrast the tools price, operation cost and also environment effect of biomass boiler and also gas boiler.



This blog compares the financial and also environmental impact of biomass gas as well as gas. The equipment price of biomass central heating boiler is greater than that of natural gas central heating boiler. Taking into consideration the high cost of natural gas, the annual operating expense (including the price of fuel, power, labors and upkeep) of gas is higher than biomass central heating boiler.



When using biomass fuels, it needs to be equipped with dust collector, sulfur and nitrate getting rid of gadget to guarantee the toxin emission satisfy the criterion. When it comes to natural gas boiler, it takes on low-nitrogen combustion technology or denitrification tool to ensure the NOx discharge meet the criterion.



Evaluation of biomass energy

Biomass power is solar power transferred in biomass materials in the form of chemical power. It comes from the photosynthesis of eco-friendly plants. It has the kind of solid, liquid as well as gas. Biomass energy is referred to as a renewable energy.



According to the different sources, the biomass gas can be classified into 6 kinds: plant straw, forestry waste, animal dung, water plants, power plants, life waste.



Biomass power has the following advantages

Inexpensive, broad distribution, big volume, renewability, storable, easy to use.



Biomass power likewise has some downsides:

Low power thickness, not suitable for long-distance transportation. To guarantee the biomass fuel supply, it calls for huge room for storage, which brings management issue.

Plant straw has wide circulation, but it is impacted by regions, periods, weathers as well as other factors. The supply is not secure. Besides, the calorific worth varies a great deal. Some are not suitable for central heating boilers.


Different sort of biomass gas have different burning impacts, which might cause slagging as well as leaves excessive ash. The alkaline content in the ash will prevent the continuous work of biomass boiler and trigger deterioration.

Biomass gas are easy to obtain damp. The wetness web content have fantastic effect on the burning temperature. Over-high wetness material will certainly make the biomass gas unable to melt.



Cost-effective impact

Devices cost

Take a 4t/h heavy steam boiler for instance. The data processor of a DZL straight biomass boiler costs around ￥ 180,000, the cost of complementary equipment and installment is around ￥ 65,000, so the overall tools expense is ￥ 245,000.



A WNS collection gas central heating boiler costs around ￥ 150,000, the expense of auxiliary machinery as well as installation is ￥ 55,000, so the complete tools cost is ￥ 205,000. For that reason, the tools expense of biomass boiler is higher than that of natural gas central heating boiler



biomass gas boilernatural gas boiler.

Yearly operating expense

We still take a 4t/h vapor boiler for example, as well as contrast the annual procedure cost of biomass fuels as well as natural gas central heating boilers. The procedure cost of a boiler consists of gas price, power intake, labor price and upkeep cost



Annual fuel price.

For instance:

The warm performance of a biomass central heating boiler is 80%.

The calorific value of biomass fuel is 17.58 MJ/kg at the very least.

The price of timber pellets is ￥ 1250/t.

A biomass central heating boiler eat 717kg timber pellet per hr.


The central heating boiler runs for 10 hrs day-to-day.

The annual running time is 300days.

By computation, the annual gas expense is ￥ 2,688,800.



Annual electrical fee.

As an example:.

The overall power of a pressure as well as cause draft fun is 29.5 kw.

The complete power of the reduction box, feeder, water pump and also conveyor is 10kw.

Then the overall power of the biomass central heating boiler is 39.5 kw.

The electricity rate is ￥ 1.0/ kwh,.

The everyday running time is 10 hrs.

The annual running days are 300 days.

After that the electrical charge for a year is ￥ 118,500.



Annual labor price.

As an example:.

The job has two changes a day.

Each changes require 2 person. A firefighter and a water driver.

The wage is ￥ 3000 each.

The labor expense is 144,000 per year.



Annual maintenance price.

Biomass boiler generally has numerous complementary equipment. Their failure price is greater than gas central heating boiler. The yearly maintenance price is in percentage to the equipment cost. If the upkeep cost is 2.5% of the devices price, after that it is ￥ 6100 yearly.



By calculation, the yearly running cost of biomass central heating boiler is ￥ 2,957,400.



Natural gas central heating boiler.

Annual gas cost.

For instance.

The warmth efficiency of biomass boiler is 90%.

The calorific worth of natural gas is 35.58 MJ/kg.

The price of natural gas is ￥ 3.1/ m3.

A gas central heating boiler can eat 315m3 natural gas every hour.

A gas central heating boiler operates 10 hrs everyday, 300 days each year.

By computation, the yearly fuel price is ￥ 2,929,500.



Yearly electric fee.

The power of the heater is 7.5 kw.

The power of water pump and also other power use devices is 7kw.

So the total electrical power of the biomass boiler is 14.5 kw.

The electricity price is ￥ 1.0/ kwh.

The working time is 10 hrs everyday, 300 days each year.

So the yearly power cost is ￥ 43500.



Yearly labor expense.

The work has 2 changes a day.

As the gas central heating boiler has greater automation, and the procedure is easy, it calls for only 1 fireman.

The wage is ￥ 3000 monthly, so the yearly labor cost is ￥ 72000.



Yearly maintenance price.

The upkeep work of a gas central heating boiler is not much, the expense is low.

Mean the maintenance expense is 1% of the tools price, after that it is ￥ 2100 each year.

By estimation, the annual running price of a biomass central heating boiler is ￥ 3,047,100.



Final thought.

In regards to the devices expense, biomass boiler is higher than gas central heating boiler. In terms of the annual running cost, as natural gas boiler has greater automation degree, calls for less power usage gadget, as well as much less maintenance, the electric cost, labor expense as well as maintenance expense is less than that of biomass boiler. Yet considering the high price of natural gas, the total operation cost of natural gas boiler is greater than that of biomass central heating boiler.



Ecological impact.

Biomass fuel.

Researchers determined the discharge of smoke, SO2 as well as NOx in 2 biomass central heating boiler.



These 2 central heating boilers has comparable dissipation ability. Both of them are not outfitted with sulfur as well as nitrate removing tool. But the initial one is furnished with a bag-type dust collector, and also the second one is equipped with a film-type dust enthusiast.



The central heating boiler geared up with film-type dust collector can minimize the ash discharge effectively. In terms of SO2 exhaust, the wood pellets can meet the stipulated requirement even without sulfur removing gadget. As for NOx emission, the wood pellets can fulfill the standard in boilers furnished with film-type dirt enthusiast.



Natural gas.

Gas is a premium quality and tidy gas fuel. The adoption of gas in the boiler can lower the air contamination remarkably. The ash, sulfur as well as nitrogen material in the gas is reduced. The smoke of natural gas has little SOx, which a satisfy specified standard. However the NOx discharge is still a problem. Investigated found the NOx discharge of natural gas central heating boiler is 125mg/m3, and also 25% of them is greater than 150mg/m3.



Conclusion.

According to the evaluation above, the kind of biomass gas has fantastic influence on the toxin discharge. Wood pellets has much less SO2 emission than straw pellets. The biomass central heating boiler with film-type dust collector has far better ash eliminating effect than bag-type dirt collector.



The NOx emission is beyond requirement in biomass boilers without sulfur or nitrate getting rid of gadget, whatever wood pellets or straw pellets. As a result, it is suggest to furnish reliable dust collector, and sulfur as well as nitrate getting rid of gadget.



Gas has advantages in cutting smoke as well as SO2 exhaust. However with the increasing discharge criterion, more natural gas central heating boilers will adopt low-nitrogen combustion modern technology and nitrate eliminating tool.



The corresponding benefits of gas as well as biomass fuel.

The price of biomass boiler is greater than gas. Their operating expense is similar considering the rise of gas cost. Besides, the natural gas boiler is less complicated to manage, and it does not take much floor space or gas storeroom.



The price of gas is under federal government control, so it will not vary sharply. The gas supply can be guaranteed when the gas boiler is in use. Biomass pellets supply is restricted by seasons. The rate and supply is unsteady, which normally takes up large storage facility space.



In regards to environmental management, biomass central heating boilers have to be furnished with dust collection agency, sulfur and nitrate removing device to guarantee the smoke, SO2 and also NOx exhaust fulfill the requirement. But gas central heating boilers doesn't require dust collector or desulfurizer, yet it require to adopt low-nitrogen burning modern technology or nitrate eliminating gadget to reduce the NOx emission. Besides, rdf pellet machine doesn't need dirt cleansing procedure.



Beyond, biomass gas is sustainable. https://girlsaloudblog.com/ is solar energy deposited in plants by photosynthesis. As statistics reveal, the biomass energy generated by photosynthesis is 173 billion bunch, however just 3% of them are made use of. Besides, biomass power is carbon neutral, which suggests the carbon dioxide usage in its growth amounts to the emission in biomass gas burning.



Fluidized-bed combustion is an innovation based on gas-solid fluidized state. It has great adaptability to biomass gas, the toxin gas discharge is low. By adding desulfurizer to the fluidized bed, it can remove the sulfur straight, and decrease the SO2 content in the smoke dramatically.



Nowadays, the fluidized bed can be utilized for the burning of various type of fuels, suitable for the co-firing of biomass and coals. The sort of gas as well as their percentage is adjustable, so you can select them according the rate to decrease your price.



The high price of natural gas is an issue. And also the rate difference between summertime and winter months is buckling down. Biomass is an exceptional replacement for typical fuels. To fulfill the ecological need as well as accomplish higher economical advantages, it is necessary to enhance the application technology of biomass fuel, and boost the proportion of biomass in power mix.


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