A Brief Description of Renewable Energy Sources

Renewable energy sources are natural resources which, despite constant consumption, are re-formed, because their production processes are short-lived and conditions still exist for them to occur in nature. Renewable resources include all living components of nature. Man has learned to use these sources to transform them into energy. 

Renewable energy sources are: 
– Solar 
energy – Water 
energy – Underwater mills 
– Wave 
energy – Wind 
energy – Earth 

energy Solar energy:

It is one of the most promising, renewable energy sources, bringing measurable ecological and economic benefits. This applies to the production of electricity and heat (usable heat pipe, hot air) in construction, agriculture, environmental protection, and small energy. Various types of heat exchangers, commonly known as solar collectors, are used to directly use solar energy and generate heat. These devices, in conjunction with traditional central heating systems as well as automation and control systems, are a big competition for traditional combustion boilers. Solar collector installations allow to save a minimum of 50% of the annual demand for thermal energy for receiving hot water in housing. Annually,

Hydropower: 

Hydropower (hydro energy) deals with obtaining water energy and converting it to moss energy. and electr. using water engines (water turbines) and hydrogenerators in water power plants (e.g. mills) and hydroelectric power plants, as well as other equipment (in maretermic and maremotoric power plants). Hydropower is based primarily on the use of inland water energy (less often seas in tidal power plants) with a high flow rate and high slope measured by the difference in upper and lower water levels, taking into account flow losses. 

Submarine mills: 

Submarine mills are spinning due to sea currents caused by the movements of water masses.
Underwater plates are equipped with movable arms 10 m long, which even every 12 hours. and 25 min they rotate 180 degrees. Turbine arms are located at a depth of 17m below the level can thus allow free running of ships. At the same time, the turbines of the power plant move slowly enough (7 revolutions per minute) that no fish flowing there needs to be afraid of being cut into pieces. 

Wave energy: Wave 

power is estimated at 3 TW, but the use of this energy causes some difficulties, although many theoretical methods have been developed for converting wave energy into electricity. The biggest problem is the variability of wave heights and power plant durability. The most important ways to convert wave energy into electricity are:
pneumatic power plants – the waves force the air in them, which drives the turbine 
mechanical power plants – use the buoyancy force to move perpendicular to the bottom, which causes rotation of the rotor connected to the generator 
induction power plants – use the movement of floats to generate electricity by using moving along with coil floats in a magnetic field 
hydraulic power plants – in which only the tops of waves flow through the walls of the stationary tank, and the water flowing from the tank drives the turbine. 

Wind energy:

Wind energy (aeroenergetics) deals with the processing of wind energy (using wind turbines) in wind farms and power stations. The power of wind farms depends on the wind speed, in many regions (including most of Poland) climatic conditions are not conducive to the use of wind energy. 
Wind energy is widely used today – in households as well as on a larger scale in wind farms. The use of this type of solutions is not very expensive due to the not very complicated construction of devices (windmills) and uncomplicated operation. 

Earth energy:

It involves the use of thermal energy inside the Earth, especially in areas of volcanic and seismic activity. Rainwater penetrates deep into the earth, where in contact with young intrusions or active magma foci, it heats up to significant temperatures. As a result, it travels to the earth’s surface as hot water or steam. It is used for, among others, home heating.

If we would like to describe renewable energy sources, we must know that they are natural resources that are being re-formed despite constant use. Power generation processes are quite short. When it comes to renewable resources, they include all living components of nature.

Renewable energy sources include: 

  • solar energy
  • water power industry
  • submarine mills
  • wave energy
  • wind energy
  • Earth energy

 

Solar energy:

It brings quite measurable ecological and economic benefits. Used mainly for the production of heat and electricity in construction, small energy, agriculture and environmental protection. Solar energy also use different types of heat exchangers so-called solar collectors. These devices together with central heating systems as well as automation and control systems compete with traditional water-heated boilers. Thanks to solar collectors, we are able to achieve savings of at least 50% on the annual demand for thermal energy needed to obtain hot water. The sum of the annual stored energy per 1m² is 950-1250 kWh, depending on the topography.

hydropower

Hydro energy or hydropower is nothing more than obtaining energy from inland waters (less often the sea) with a high flow rate and converting it into electricity and mechanical energy. The acquisition process is carried out using water engines, so-called turbines and hydrogenerators, in hydroelectric power plants and hydroelectric power plants, but also in maretermic and maremotoric power plants.

Submarine mills:

They are driven by sea currents, which arise due to the movements of water masses Turbine arms are located at a depth of 17m below the level (which allows free flow of ships) and underwater plates are 10m long and regularly every 12 hours and 25 min. they rotate 180 degrees. At the same time, the turbines of the power plant move 7 revolutions per minute.

Wave energy:

Wave power is a value of 3 TW. The use of such energy presents some difficulties, because one of the biggest problems is the variability of wave height and power plant durability.

 

Which power plants can convert wave energy to electricity?

– hydraulic power plants – in them waves peaks flow through the walls of the stationary tank, and the water flowing from the tank drives the turbine. 
– pneumatic power plants – the waves cause air movement in them that drives the turbine 
– mechanical power plants – use the buoyant force to move perpendicular to the bottom, which causes the rotor connected to the generator to rotate 
– induction power plants – use the movement of floats to generate electricity by using coils moving together with the floats in a magnetic field

Aeroenergetyka:

Aeroenergy or wind energy uses wind energy in wind farms and wind farms with the help of wind turbines. The power of wind farms depends on the wind speed. Aeroenergetics is widely used, among others in households, because its use is not very expensive, it does not require complicated devices, simple windmills are sufficient.

Earth energy:

Thermal energy inside the Earth is used, particularly in areas of volcanic and seismic activity. Rainwater penetrates deep into the earth, where then in contact with young intrusions or active magma foci, it is heated to high temperatures. As a result of this process, the heated water travels to the surface of the earth, which is used, among others, for heating homes.

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