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2015 | 36 | 3 | 291-303
Tytuł artykułu

Prediction of coking dynamics for wet coal charge

Treść / Zawartość
Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
A one-dimensional transient mathematical model describing thermal and flow phenomena during coal coking in an oven chamber was studied in the paper. It also accounts for heat conduction in the ceramic oven wall when assuming a constant temperature at the heating channel side. The model was solved numerically using partly implicit methods for gas flow and heat transfer problems. The histories of temperature, gas evolution and internal pressure were presented and analysed. The theoretical predictions of temperature change in the centre plane of the coke oven were compared with industrialscale measurements. Both, the experimental data and obtained numerical results show that moisture content determines the coking process dynamics, lagging the temperature increase above the water steam evaporation temperature and in consequence the total coking time. The phenomenon of internal pressure generation in the context of overlapping effects of simultaneously occurring coal transitions - devolatilisation and coal permeability decrease under plastic stage - was also discussed.
Wydawca

Rocznik
Tom
36
Numer
3
Strony
291-303
Opis fizyczny
Daty
wydano
2015-09-01
otrzymano
2014-09-16
poprawiono
2015-05-03
zaakceptowano
2015-07-30
online
2015-11-05
Twórcy
  • Institute of Fluid-Flow Machinery, Polish Academy of Sciences, Fiszera 14, 80-231 Gdańsk
  • Institute of Fluid-Flow Machinery, Polish Academy of Sciences, Fiszera 14, 80-231 Gdańsk, sylwia@imp.gda.pl
  • Institute of Fluid-Flow Machinery, Polish Academy of Sciences, Fiszera 14, 80-231 Gdańsk
  • Gdańsk University of Technology, Narutowicza 11/12, 80-233 Gdańsk
  • Institute for Chemical Processing of Coal, Zamkowa 1, 41-803 Zabrze
Bibliografia
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Typ dokumentu
Bibliografia
Identyfikatory
Identyfikator YADDA
bwmeta1.element.-psjd-doi-10_1515_cpe-2015-0020
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