METHODS AND MEANS TO IMPROVE THE EFFICIENCY THERMAL PROCESSING OF SOLID FUEL IN A FLUIDIZED BED

Details

Parent Category: Geo-Technical Mechanics, 2015

Category: Geo-Technical Mechanics, 2015, Issue 120

UDC662.66:66.095.5

Authors:

SemenenkoYe.V., D.Sc (Tech.), Senior Researcher,

Dyakun I.L. Junior Researcher

(IGTM NAS of Ukraine)

Abstract.

Problems of improving a fluidized bed technology by way of pulsing air (gas) fed into the bed are considered. A model of and calculation procedure for rational parameters of the coal particles pulsating flowing, moving and firing in the fluidized bed as well as empirical dependence of efficiency of gassing process during combustibles firing in the bed are proposed, which take into account operation parameters of the pulsating fluidized bed. Physics of impact of amplitude-frequency characteristics of the air pulsating feed on the completeness of the coal particles burning-out in the bed was investigated. It is stated that the pulsations period T = 0.5 – 2 s and porosity y = 0,3 - 0,4 are rational parameters as they increase rate of solid fuels burning-out in the pulsed fluidized bed by 20 - 40% if compared with stationary bed. Technical facilities (pulsators) were designed, which feed pulsing air into the fluidized bed and provide controllable air stream pulse shapes and pulse ratio.

Keywords:

fluidized bed, period, pulse ratio, combustion, pulsator.

References:

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Abouttheauthors:

Semenenko Yevgeniy Vladimirovich, Doctor of Technical Sciences (D.Sc), Senior Researcher, Hed of Department of Mine Energy Complexes, M.S. Polyakov Institute of Geotechnical Mechanics under the National Academy of Sciences of Ukraine (IGTM, NASU), Dniepropetrovsk, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it.

Dyakun Inna Leonidovna, junior Researcher in Department of Mine Energy Complexes, M.S. Polyakov Institute of Geotechnical Mechanics under the National Academy of Science of Ukraine (IGTM, NASU), Dnepropetrovsk, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it.

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