COWI is planning a new recycled woodchip incineration plant with a capacity of 10 MW, which will produce both process steam for internal processes at Grødaland and district heat to be supplied to industrial customers in the surrounding area.
The quantity of district heat is constant through the year, while supplies of steam vary and may even stop temporarily during normal operation.
To enable the incineration plant to handle these variations in heat supply, we have developed a heat balancing and buffering system which ensures that the heat is not lost, while the operating load on the incineration plant is adjusted according to demand.
This results in high energy efficiency and reliability. As part of the Grødaland project, COWI has also evaluated phosphorus recovery from the ash from burning bio-waste from the biogas plant with recycled timber.
In addition to design and construction, we are assisting IVAR in obtaining all permits, applications for public funding and full cost/benefit calculations.