Regimes of gasification of lean coal layers

Based on a generalized volume-average model, the regimes of filtration combustion in gasification of lean coal layers, which are of interest for evaluation of the parameters and realization of underground gasification of brown Belarusian coals, have been analyzed. The existence of two basic regimes — those of cocurrent and countercurrent gasification waves — has been established. Data on the characteristics of the regimes and the conditions of their existence have been obtained. __________ Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 79, No. 2, pp. 56–61, March–April, 2006.