The average values of physical and chemical properties of solid biofuels in question are shown in Table 1.
Analytical moisture of the raw materials was uniform and was about 8%. The best energy properties expressed as
the net calorific value were revealed by pellets made of birch sawdust of birch and oil cake, while rape straw pellets
had net calorific value about 15% lower. The ash content was more varied ranging from 1.5% (birch sawdust
pellets) to 5.5% (oil cake pellets) (Table 1).