RT Journal Article ID 35f4e54d0cba6860 A1 Boyarkin, M. S. A1 Kovalnogov, Vladislav N. A1 Karpukhina, T. V. A1 Fedorov, Ruslan T1 DEVELOPMENT AND RESEARCH OF THE TECHNOLOGY OF ENRICHING LOW-GRADE SOLID FUELS WITH RECIRCULATING FLUE GASES FOR BOILER PLANTS JF International Journal of Energy for a Clean Environment JO IJECE YR 2016 FD 2017-04-20 VO 17 IS 2-4 SP 145 OP 163 K1 low-grade fuel K1 flue gases K1 boiler K1 pellets K1 recirculation K1 modeling AB A set of problems related to the modeling, investigation, and development of energy efficient technologies of burning low-grade solid fuels for boilers of small distributed power-engineering plants is discussed. The technology of enriching low-grade solid fuel pellets (obtained by pressing the wastes of timber and wood processing and of agricultural production) with recirculating flue gases from a boiler plant is presented. The technology provides for final drying and heating pellets with simultaneous saturation of their capillary-porous space with a synthesis gas and with combustible components of a recirculating gas. The arrangements contribute to the most complete combustion of pellets and to the improvement of fuel efficiency and environmental friendliness of a boiler plant. A mathematical model, difference approximation of differential equations defining the kinetics of heat and humidity state and saturation of pellets, as well as the calculation algorithm and some results of the numerical investigation of the parameters of pellet state in the process of enrichment with recirculating flue gases are given and discussed. PB Begell House LK https://www.dl.begellhouse.com/journals/6d18a859536a7b02,5120a0545c75496b,35f4e54d0cba6860.html