Sunflower Husk Pellets are made of the scales of sunflower nuts. They are a by-product of sunflower oil extraction process and can be found in big quantities in sunflower oil factories. Their value as an animal food is very low because of the low content of protein and that is why they are not competing with other animal food products. Big amounts of sunflower husks are produced in South Russia and in Ukraine. As a biofuel sunflower husk pellets has been successfully used in UK power plants and also in Poland. After Polish government stopped the subsidy for burning agricultural products and after in Western Europe co firing has been mainly substituted by wood pellets importance of sunflower husks has significantly decreased. But as a biofuel SFHP can be definitely used in biomass dedicated power plants and also for co firing with coal.
Their NCV is close to the NCV of wood pellets, being 17,-17,6 GJ per mt ,in some cases it may go up to 18,0 GJ per mt. Ash content is on the level of 2,6-3,0% being little bit higher than the ash content of Industrial 2 wood pellets. In most of the cases Sulphur content may be slightly higher than 0,2% which is slightly higher than accepted for wood pellets. Durability index (Hard Grove Index) of SFHP is 18,which means they are harder than olive cake (GHI 20), but softer than olive stones and PKS ( HGI 15).
The biggest problem of SFHP may be their relatively high dust content ( bigger content of the particles below 3,15 mm and lower mechanical durability).Sometimes the problem pf SFHP may be their slightly lower bulk density which may make the inland transportation after unloading more expensive.
Sunflower husk pellet fuel is a critical wellspring of vitality and the most vital fuel worldwide after coal, oil and gaseous petrol. It is a spotless consuming and cost stable home warming options. To consume wood pellet is a decent method to occupy a large number of huge amounts of waste from landfills and timber industry and transform it into vitality. Their free-streaming attributes make them simple to deal with and perfect for programmed warming frameworks.