FOREST-BASED BIOPRODUCTS INDUSTRY NEWS
it came to the health and safety of the project.”
The results Heden 3 started production in the Summer of 2014 and Karlstads Energi took over the full running of the plant on 23 December, 2014. Johan Svartvik, Plant Manager, said, “It has been over a year now since we took over the full running of the plant and the availability of the boiler has been at 99%. There have only been minor stoppages and none of them to do with the boiler. Really, it has performed well from day one”.
The fuel for the plant all comes from the local area. About 80% comes in the form of forest residuals (seasoned branches and tops), as well as residue from local sawmills. There are occasionally some logs, which have to be chipped. The plant also takes rejected logs from Stora Enso’s Skoghall Mill located near Karlstad.
“We are very pleased with the ease of stop and start and the maintenance is straightforward,” added Svartvik. “There was a
The plant is equipped with two fuel discharging systems for redundancy reasons and this system is located at the bottom of one of the day silos.
big learning curve, but from the start it was our baby. Our veteran operators have a lot of expertise here and we have several new people, so nothing has phased us so far.”
In terms of output, how is Heden 3 performing now? Thelander explained, “Today, we are running at full load, which is about 89 MW. No problems. With the Andritz technology, we have the functionality at this plant to always optimise, depending on the fuel”. When the guarantee period is over, Karlstads Energi intends to push production a little further. Thelander concluded, “We have already reached 93 MW during a performance test and we can certainly push the boiler a little bit harder. We will only be limited by the capacity of the turbine”. More information from
www.andritz.com
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