The Horse 2019/20 | Energy knowledge

The power of wind

25. March 2020 Yllza-Hadergjonaj Energy knowledge, VZ19A (2)

Energy carrier wind

Wind power is a sustainable and renewable Energy, and has a much smaller Impact on the Environment compared to Burning fossil

Disadvantage of using wind
A first disadvantage is the unreliability of energy production by wind. A wind turbine can only produce electricity if it is moved by the wind. The production of wind energy is therefore dependent on the presence of wind. This means that no reliably constant amount of energy can be produced. Another negative aspect in the production of wind Energy is the fact that wind as an Energy source cannot be stored, but must be converted directly into electricity. In Addition, a large number of wind power plants are necessary to ensure the supply of an area. More...

Gas as an energy source

25. March 2020 Sandro-Rusch Energy knowledge, VZ19A (4)

Biogas and natural gas

The 2 most important gases used as an energy carrier is the natural gas (Erdgas) and the biogas. It is important to mention that there exist a lot of other different types of gases but since these are the most common ones we will explain those. The biggest difference between natural gas (Erdgas) and biogas is that the biogas is renewable and the natural gas is not.More...

Development of coal

25. March 2020 Giorgio-Zanatta Energy knowledge, VZ19A (6)

Coal is a combustible black or brownish-black sedimentary rock, formed as rock strata called coal seams. Coal is mostly carbon with variable amounts of other elements; chiefly hydrogen, sulfur, oxygen, and nitrogen. Coal is formed when dead plant matter decays into peat and is converted into coal by the heat and pressure of deep burial over millions of years. As a fossil fuel burned for heat, coal supplies about a quarter of the world's primary energy and two-fifths of its electricity. Some iron and stell making and other industrial processes burn coal.

Advantages:
Workplaces
Cost effective resource

Disadvantages
Potancial damage to the environment

Question?

How long does coal exist?

Sources:

Kohle Schweizerische Eidgenossenschaft

Advantages and disadvantages

How energy works

Vocabulary:

combustible - brennbar

strata- Schichten

Deepening of Coal
Coal, which has been a primary energy source for more than a century, began to form during the Carboniferous period, which took place between 360 and 290 million years ago. Plant matter accumulated in swamps and peat bogs, and after being buried and exposed to high heat and pressure — largely due to the shifting of tectonic plates — it was transformed into the coal that powered the industrial revolution and that the mining industry uses today.

Coal is the energy carrier with the biggest total resource. The advantage of coal is that coal is available over the world. Coal is problematic because it has an incredible CO2 emissions. In Switzerland was coal to the middle of the 20 century the main carrier and was used mostly for primarly energy as fuel. The most important coversion in the second energie was with coal gasifaction for the city energy. The role of coal in switzerland is so inncuous that in 1998 the coal carrier was canceled.The return of coal as a energy carrier in Switzerland is not really believable.

Lignite is the youngest type of coal. It is soft and ranges in color from black to shades of brown. As a result, it’s sometimes called brown coal. Lignite is mainly used for electricity generation and accounts for 17 percent of the world’s coal reserves.

Advantages of Lignite coal:

Rather cheep
Supports local economy

Anthracite is the most mature coal and thus has the highest carbon content of any type of coal. Nicknamed hard coal by the locomotive engineers that used it to provide energy to power trains, coal mines that produce anthracite or hard coal account for roughly 1 percent of the world’s total coal reserves, which represents a very small portion of the overall coal industry. Anthracite is also used in some older homes’ heating stove systems, and can be used as a smokeless fuel in hand fired furnaces.

Advantages of Anthrazit coal:

Cheap
Doesn’t produce smoke

Charcoal is a lightweight black carbon residue produced by removing water and other volatile constituents from animal and plant materials. Charcoal is usually produced by slow proces, the heating of wood or other organic materials in the absence of oxygen. This process is called charcoal burning. The finished charcoal consists largely of carbon. The advantage of burning charcoal compared to burning wood is the absence of water and other components. This allows charcoal to burn at higher temperatures, and give off very little smoke.

Advantages of Anthrazit coal:

Cheap
Doesn’t produce smoke

Team: Dominic/Giorgio

Switzerland - European's leading oil user

25. March 2020 Anna-Meier Energy knowledge, VZ19A (3)

Oil as an energy source

Oil is a fossil energy carrier and it's non-renewable. In general, oil is a liquid that is made up of organic molecules. However, the world oil in the context of the energy sector is the liquid fossil fuel that is extracted from the ground. Roughly 1/3 of the world's primary energy comes from this primary fuel. One barrell of oil equals approximately 159 liters.

With these pumps the workers gain the oil from the underground. More...

Geothermal Energy

25. March 2020 Matteo-Lazzarotto Energy knowledge, VZ19A (5)

Geothermal energy is the heat coming from the earth and is located under the surface of it. The heat is more extrem the further you go into the earth. Several Miles into the earth you can find the magma rocks, which are extremly hot. However you can already find some heat from shallow ground. More...

Solar photovoltaics

25. March 2020 Diego-Di-Martino Energy knowledge, VZ19A (4)

Photovoltaics

Photovoltaics is based on the ability of certain materials to convert light directly into electricity. The most common application of solar energy collection outside agriculture are solar water heating systems. Although the basic physical principle has been known for a long time, the technical development of solar cells is far form complete, and further improvements can be expected in the future.

Solar energy could be used for example for power in the oven or heating hot water for a bath. The structure of use is the same.

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