Eszterházy Károly College Faculty of Natural Sciences
Table of Contents
In this chapter, the collection and typification of potential underground resources is done in a given settlement. The most important local mining raw materials will be determined, on which a quality development strategy can be based. Primarily the domestic supplies of raw materials and mining prospects are processed.
Energy resources can be divided into two groups. Depending on their formation we distinguish fossil and renewable energy resources. Fossil fuels include coal, petroleum and natural gas, mainly containing carbon and hydrogen compounds. These traditional sources of energy are formed in nature. These can be in a solid, liquid or gaseous state, its energy density is high. Formed out of the decomposition of plant and animal residues away from air during millions of years. Over the last centuries to present day global energy need is satisfied by fossil fuels. As the first fossil fuel, carbon was used in large quantities, due to its use as an energy source to steam engine in the mid 18th century. The spreading of coal-fired steam engine in factories and transport boosted the economy, enabling the development of the industrial revolution. In advanced industrial countries the dominance of coal ceased and other fuels are used as primary energy sources. Today, the vast majority of consumption is given by different types of hydrocarbons like petroleum, coal and natural gas. In addition, nuclear power plants and renewable energy plants are only a marginal part of the production. The coal, petroleum, natural gas produced from hydrocarbons are key to our power supply. The majority is used for transport, electricity production and heating, but these serve as raw materials for chemical, plastics and rubber products. The burning of fossil fuels releases carbon dioxide, water, and large parts of other mixtures, and ash which contains various heavy metals and carcinogens. These processes can not be renewed, their re-production is very limited, the availability of their quantity is limited. Use rapidly increased in the last century, partly due to the irresponsible and wasteful consumption.