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The flow of gases through porous media is a common physical phenomenon occurring not only in the natural environment but also in a number of technical applications, including the industry. The flow of gases through rock porous media takes place during exploitation of numerous energy resources ? not only during the excavation of hard coal (the flow of a gas mixture through goaf with caving) but also in the course of exploiting crude oil and natural gas (the flow through shale rocks). The issue of gases flowing thro...

The most crucial factor influencing economic development and social well-being, as well as resulting in the mitigation of the effects of social poverty is electricity and its availability. As a result, a given country?s growing economy generates an increasingly higher demand for energy. Even though the generation of electricity in the Polish power industry is still primarily based on fossil fuels, there is a visible increase in energy produced from renewable sources. In 2016, in Poland the share of renewable energ...