WTS - Renewable Multifuel Burners
It gives the customer an opportunity to convert existing boilers into production units with renewable fuel at a lower capital cost than building a new boiler. The existing fuel is still available and can always be used as back up or topping up. When installing a new combustion system in an existing boiler the customer get a dual or triple fuel installation and can choose the most preferred fuel when he wants. The burners are operated in automatic and fast responding to load changes. The normal fuel are pellets and these have a high energy density compared to wet fuels, pellets can be stored at a small foot print, the flue gas flow is dry and the equipment is smaller than when firing wet fuels. Low emissions of NOx and CO. The availability is very high and maintenance costs are low. Fast load response, similar to oil and gas burners. The split between powder/oil or powder/gas can be done independent from 0 –100%.
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Product Details
What type of boilers?
- The best boilers to convert are water tube boilers since they have a better shaped furnace.
- Fire tube boilers are possible to convert but the down rating can be quite large since these type of boilers are designed for a high thermal load.
What type of fuels?
- The burners can be designed for gas, liquid and powder fuel. All three if the customer requires this.
- The renewable fuels that can be used are biogas, bio oil and dry biomass milled to a fine powder. The limitations for powder are < 10% MC, particle distribution 100%< 1mm & 70% < 0,5mm.
- Different fuel types for multi fuel burners:Powder / Dust : Wood, Agro, Peat, Bark & Coal
- Oil:
- HFO & Diesel
- Gas: Natural Gas, Propane & Process gas
- Burner sizes 2 MW – 50 MW /burner.
Converting to WTS multifuel burner:
- Existing boilers and furnaces can be used.
- A conversion can normally be done fast and easy when replacing existing burners.
- Changing the burners can be done at an appropriate time with continued use of the original fuel.
- Powder handling can be completed with the burner in use and a transition can be made when powder is available.
- The original fuel is always available to 100% and can be used as a backup or for topping up.
- The plant is quickly started and quickly stopped with a turndown ratio of 1:4.
- For new built plants the boilers can be smaller and requires a smaller foot print than wet biomass boilers.
- No modifications are usually needed of buildings.
New equipment can be optimally placed on the site.
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