Optimization of Energy Efficiency of a Heat Recuperator on the Basis of Underground Coal Gasification

Abstract

Mining of the off-balanced and balanced reserves of mines, being under closure or completing their operation, required the implementation of mobile, complex, and environmentally friendly development technologies based on the processes of well underground coal gasification (WUCG) that unites mining of coal and its energy-chemical use. Environmental friendliness of the WUCG process is possible due to its controllability, hermeticity of the underground gas generator, and complex use of cogeneration technologies in the closed cycle of purification and processing of gasification products. The set engineering tasks were performed using analytical studies, bench studies and field studies. Efficiency of thermal energy generation were studies using rocks enclosing the underground gasifier and generator gases. These sources being the basic heat generating segments of energy chemical complex for coal gasification being formed at the territories of operating coal mines or mines at the stage of their closure. Prospects of coal gasification and thermal energy generation using rock disposals of coal mines have been estimated.

Analysis of the Effectiveness of Operation Modes of Shearers via Modern Regulators

“…Відсоток розроблюваних вибоїв на тонких пластах у Донецькому басейні від загальної кількості становить приблизно 80% [3]. Отже, одним з основних напрямів у галузі проєктування видобувних комбайнів натепер є вдосконалення конструкції комбайнів із метою можливості їх ефективного застосування в обмеженому просторі.…”