TECHNOLOGIES OF WOOD WASTE INCINERATION IN LOW POWER BOILERS

Abstract

The analysis of ways of burning wood waste and waste of vegetable origin, biomassand their energy potential are given. Possibilities of reconstruction and modernization of gas boilerunits of Ukraine about burning biomass and wood waste were studied. The scheme of solid fuelcogeneration power plant with wood waste incineration has been developed. The high energyintensity of Ukraine's GDP and the lack of its own fuel resources determine its dependence on energysupplies. Therefore, the current policy of involving local fuels and renewable energy sources (RES)in the fuel and energy balance of municipal and municipal energy. The use of wood and plant biomasswaste in the housing system (boilers) will reduce the consumption of imported natural gas. Moderntechnologies provide efficient incineration of wood waste, but their use is determined by thecharacteristics of fuel and capacity of commercial boilers. The most effective methods andtechnologies of thermal processing of wood waste are being developed. High gas prices in 2021 arecaused by rising prices for rare earth metals and other elements used in renewable energy: lithiumby 400 %, silicon – 300 %, aluminum – 37 %, cobalt – 85 %, neodymium – 58 %, magnesium - 9,copper – 25 %, zinc and nickel – 25 %.Renewable energy also needs the resources from which windmills and solar panels are made.70 % of windmills and solar panels are made of metals and alloys and their cost will affect the costof generating new RES capacity.Analysis of the reasons for the increase in prices for components for RES shows that with risingprices for fossil fuels (gas, oil, coal) and increasing construction of RES, prices for lithium, cobaltand other elements increase. At the same time, rare earth reserves are limited and concentrated inseveral countries (China, Austria, Bolivia, Chile, Brazil, Congo) and therefore these countries havea stricter pricing policy.