作者: Alina Żogała
DOI: 10.7424/JSM140105
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摘要: ABSTRACT Purpose Underground coal gasification is a very difficult process due to changes in the parameters over time and within space of reactor variety phenomena that occurs there. Consequently, it necessary create appropriate mathematical models, which simplify optimization forecast future results (especially final gas properties). The purpose this work was detailed critical analysis simplest simulations methods, based on thermodynamic calculations process. These called equilibrium can be divided into two groups: stoichiometric non-stoichiometric. other aim paper characterize various engineering methods used calculation processes. Methods Literary studies, concerned with general aspects underground modeling manner calculations, were as research method applied presented work. Results models characterization (including formulation process, range required parameters, rate convergence methodology searching solutions) non-stoichiometric numerous considerations article. Practical implications describes practical issues connected – their advantages, limitations possible problems (for example determination constants) potential applications (preliminary analysis, point reference more complex etc.). Originality/value This presents state art field modeling. article also attempt elaborate most important gasification.