The installation is used to provide district heating from burning locally sourced waste wood from building demolition and recycling centres. The energy plant is fully automatic including fuel feeding system, which means it can operate with a minimum of supervision during the weekends and holidays.
The new straw-fired plant at Auning district heating facility is fully integrated with two existing production units, a wood pellet-fired boiler and a reserve straw-fired boiler.
New boiler design accepts straw of varying quality
In recent years, the market for straw has been characterised by poorer-quality straw than previously, which presents challenges for straw-fired boilers.
“The fluctuating quality has forced us to change the boiler design so that the boiler can increasingly accept both damp and dry straw and still ensure smooth operation,” says John Martin Myrup, a biomass plant specialist at Verdo.
The plant in Auning has also been prepared for a second boiler, while the fuel storage can be doubled, which was not the case with the existing boiler system. Moreover, the plant is future-proofed with scope for expansion and change of the chosen fuel source.
We have optimised the boiler design so that the plant can increasingly accept both damp and dry straw and still ensure smooth operation.
Balling-Rødding is another Danish district heating plant to which Verdo has supplied a 5.5 MW wood-chips fired boiler line. To secure optimal combustion of wood chips of quite wide moisture content, Verdo has implemented an intelligent control system.
A combination of existing technology and experience with new knowledge creates a new innovative energy plant in Kjellerup, Denmark. Kjellerup District Heating is looking forward to a energy plant with the newest technology and high efficiency.
Watch the video of the great straw-fired boiler in the making in Auning, Denmark. It is an impressive project that is going to deliver sustainable heating for the citizens of Auning.
We are looking back at a succesful installation of the main components.