№65-05

Methodology for adapting the results of laboratory research on coal gasification to full-scale conditions

P. Saik1

1 Dnipro University of Technology, Dnipro, Ukraine

Coll.res.pap.nat.min.univ. 2021, 65:50-59

https://doi.org/10.33271/crpnmu/65.050

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ABSTRACT

Purpose. Development of a methodology for adapting the results of laboratory research on coal gasification to full-scale conditions using modeling in CAD and CAE software packages.

Methods. To achieve the purpose set, the paper describes: sequence of performed laboratory studies on coal gasification at the laboratory setup, which makes possible to reproduce the real conditions of the gasification process; approaches to the use of laboratory results in computational experiments of the gasification process using modeling in CAD and CAE software packages; adaptation of the computational model to real conditions.

Findings. Itis considered the possibility of using the software product Solid Works to study the coal gasification processes. The main stages of scientific research are distinguished, which make it possible to obtain data on the velocity of the fire face movement and the uniformity of its movement, the parameters of the temperature field propagation along the strike and dip of the modelled seam, the parameters of the heat and material balance of gasification process depending on the pressure and type of the blowing mixture supplied in the modelled gas generator, the nature of the roof rock layers subsidence, assessment of the stress-strain state of the rock mass around the underground gas generator.

Originality. The scientific novelty is in the scientific substantiation of the developed methodology for adapting the results of laboratory research to full-scale conditions based on the parameters study of the change in the geomechanical state of the rock mass and the thermal field around the underground gas generator.

Practical implications. The developed methodology, based on a series of computational experiments performed, makes it possible to substantiate the parameters of the coal gasification process depending on changes in the mining-and-geological situation in the studied area, as well as the parameters of the heat and material balance.

Keywords: methodology, underground gasification, laboratory research, modelling, computational experiment.

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