Our land is rich in resources.Its uniqueness lies in the fact that she is able to create the necessary substance for human life.For example, we constantly use the fuel, formed from the remnants of dead plants.But what applies to resources and how they are formed?These two questions may be of interest not only to students who are studying geography, but also for all people who enjoy the warmth.
Classification and varieties of fuel
Education fuel is possible in two ways - natural and artificial.The first - when it is produced and used without processing for human benefit.Another type - when a natural fuel is reprocessed people and only then applied.Furthermore, there are solid fuels, liquid and gaseous.Each of them is divided into two groups: natural and artificial.Their compositions are very similar, but they differ in the concentration of certain elements.In particular, it is hydrogen, oxygen and carbon, these compounds are capable of self burn.Also, water is present in the fuel and nitrogen.These components can not self-ignite, but capable of supporting combustion.Pay attention to the solid fuel formed from the remnants of dead plants.
Peat: structure
In places the former marshes and wetlands can be found loose rocks - peat, which is considered a valuable fuel.He came through the time-period during which the accumulated part of the plant.Because of waterlogging (lack of oxygen and high levels of moisture), they could not go through the process until the final expansion have contributed to the formation of this fuel.Peat is the basis for the formation of coal.This fuel, formed from the remnants of dead plants, its high moisture content.In nature, this figure reaches 95%.In addition, it contains visible remains of plants.The two major factors different from peat coal.Peat Types
properties of this fuel is directly dependent on the quality of the decomposed substances from the amount of the solid phase which is present in the peat, and its degree of humidity.It can also have different colors - from yellow to earthy shades.This index indicates the degree of decomposition of substances, and the acquired qualities.There are two kinds: a horse and lowland.Each of them has its own structure, which is different density and viscosity.The first can be spongy, fibrous or spongy-plastic-viscous.Lowland kind of fuel has a slightly different texture and can be felt, ribbon and layered granular Komkova.These rates depend not only on the percentage of humidity and the level of decomposition, but also on what organic and mineral particles it contains.The quantity of peat depends on plants that appear annually, from oxygen and moisture level.
Coal: structure
To understand what is coal, scientists have conducted a thorough research, studying it under a microscope.Facts have shown that in fact it is a fuel that is formed from the remains of dead plants.The origins he took in peat bogs.Most often you can find humus coal.He came through humus grasses, shrubs, leaves and even moss.Another kind of - it sapropelic coals, which have arisen from the dead animals and humus sludge.The first type is more common.In the course of centuries, many swamps gradually zapylyalis sand after a while covered with abundant vegetation.Gradually, the process was repeated several times, accumulating layers of peat that, in turn, formed in coal deposits of various shapes.Because of this we can now produce fuel from dead plant remains.
coals
At the moment we are using three varieties of coal.The first - is lignite, or brown coal, which is mainly acquire smaller boilers.It is formed at a depth of approximately one kilometer under pressure and higher temperature.Its composition is present about 50% of volatile components, which significantly affects the quality of combustion.Carbon in it the minimum number of all three types (50 to 77%).
other type - is coal.It is formed at a depth of three kilometers, it contains more carbon (75-95%), which is reflected in the improved quality of combustion.This percentage affect product quality.In this form of coal present a large proportion of volatile components and water.After burning ash remains.
Next view - is anthracite.This fuel, formed from the remnants of dead plants, is the most powerful degree of coalification.It contains a maximum percentage of carbon (98%), while it includes a minimum amount of moisture and volatiles.It is used in industry and for domestic use.This product is the most expensive, but it has the maximum heat loss during combustion.
quality and type of coal depends on the depth of the formation and the type of vegetation that was the basis for his education.
