Uses of Wind Energy Information for Students (2018 update) - TechonBrain


Uses of Wind Energy Information for Students (2018 update)

Uses of Wind Energy Information for students you all need to know Wind energy can be used in many ways. For example, wind turbines generate mechanical energy, sails move on boats and wind turbines generate electricity.

What is wind energy?

wind energy information and facts

Wind is generated by huge convective currents in the earth's atmosphere, driven by the thermal energy of the Sun. This means that as long as the sun is shining, there will be wind, Also read the Advantages of Solar Energy.

Fundamentals of wind energy

Wind is caused by the uneven warming of the atmosphere by the sun, fluctuations in the earth's surface and the rotation of the earth. Mountains, reservoirs and vegetation influence the wind conditions.

Wind turbines convert wind energy into electricity by rotating a propeller-shaped blade around the rotor. The rotor rotates the drive shaft, which rotates the electric generator.

The energy consumption of a wind turbine is influenced by three key factors: wind speed, air density, and the lifting area, also read 12 Disadvantages of Solar Energy.

Development of wind farms

The location of a wind farm varies from location to location, but landowners need to take a number of important aspects into account.

Understanding wind resources

  • Estimation of the distance to existing transmission lines.
  • Identification of advantages and barriers hindering spatial planning.
  • Ensuring access to capital
  • Identification of a reliable buyer or market for energy.
  • Address distribution and feasibility considerations for the project
  • Understanding the economics of wind energy
  • Acquisition of competence in spatial planning and approval procedures
  • Start a dialogue with turbine manufacturers and designers.
  • A secure agreement to meet management and management needs.

Facts relating to wind energy

how does wind energy work

We invite you to familiarize yourself with many interesting facts concerning wind energy, which will explain how we use wind energy to generate electricity and other useful forms of energy.

Find out how long people use windmills, how large wind turbines can be, how much electricity the world's wind power industry produces and more.

  • Windmills have been in operation in Persia (Iran) since 200 BC.
  • Wind energy is clean and renewable.
  • Large groups of wind turbines are referred to as wind farms.
  • About 80 different countries use wind energy for commercial power generation (since 2009).
  • In 1997, wind power generated only 0,1 % of the world's electricity, rose to 1,5 % in 2008 and 2,5 % in 2010.
  • In some countries, such as Denmark and Portugal, wind energy accounts for around 20% of total electricity production.
  • Smaller turbines are sometimes used to charge batteries or as a spare power supply for caravans and sailing vessels.
  • Modern wind turbines typically have 3 blades that can reach speeds of more than 320 km/h (200 mph).
  • Large wind turbines can reach heights of up to 200 meters.

Large blades of wind turbines may interfere with some radar meteorological stations or air traffic control systems and may sometimes be confused with aircraft or other meteorological systems.

Wind turbines can also be installed on floating offshore structures so that the electricity generated can be transferred back to shore using submarine cables.

How do winds develop?what is wind energy used for

Look at the hour of wind here This can easily be explained by the daily wind cycle.
The Earth's surface is both terrestrial and aquatic. When the sun rises, the air above the ground heats up faster than water.

The heated air is lighter and rises. The cooler air is thicker and falls down to replace the air above the ground. The opposite happens at night, The air above the water is warmer and rises, replacing it with cooler air from the mainland.

Mobile air (wind) has large amounts of kinetic energy, which can be converted into electricity by means of wind turbines.

The wind rotates the blades, which rotate the shaft connected to the generator and generate electricity. Electricity is transmitted via transmission and distribution lines to the transformer station and then to houses, companies, and schools.

Wind turbines cannot be operated without wind, or if the wind speed is so high, it can damage them. Energy from wind turbines

Wind turbines are usually located on high hills and ridges to take advantage of prevailing winds.

Like the windmill, wind turbines have been in operation for more than 1000 years. From the former Netherlands to farms in the United States, windmills were used to pump water or grind grain.

Did you know that

wind energy wikipedia

The world's largest wind power plant in Hawaii has blades with a length of the football pitch. The average wind speed shall be 14 miles per hour in order to the conversion of wind energy into electricity.

One wind turbine can generate enough electricity to supply up to 300 households. The first drive turbine was installed. At the end of the 19th century, Ohio charged its batteries.

In 2013, wind energy accounted for approximately 7.9% (28.4 TWh) of the electricity generated in the UK. This is sufficient to supply 6.8 million households.

The costs of installing wind power technology are known in advance so future prices will be more stable than coal or gas prices, as they are imported and prices often fluctuate.

The equation for wind energy

what is wind energy definition

P = {1\over 2} \rho A V^3

Wind speed The amount of wind energy varies with the cube of the wind speed, i.e. when the wind speed doubles, the wind energy is eight times higher (2^3 = 2 x 2 x 2  = 8).

Small changes in wind speed have a significant impact on the amount of wind energy available.

The air density varies with altitude and temperature. The higher the air density, the more energy the turbine receives. At higher altitudes, the air is less dense than at sea level, and the warm air is less dense than the cold air.

At the same output, turbines will produce more energy at lower altitudes and cooler average temperatures. The working surface of the turbine

The larger the area (the size of the area through which the rotor rotates), the greater the power of the turbine can be absorbed by the wind.

From an inclined surface A = Pi r^2, where r = radius of the rotor, a slight increase in the blade length leads to a greater increase in the efficiency of the turbine.

Essential accessibility

uses of wind energy

A wind power project (WPP) involves development with the use of own and human resources or with the use of technical services of consulting organizations.

Site Identification: The process starts with an overview of the regional and precise GIS mapping, by which specific options are identified at a feasible location. This also includes project delimitation and optimization.

Wind Resources Assessment: A key to the success of a WPP project is the accurate assessment of wind resources using a variety of resources.

The power density of the wind turbines/map of wind speed on a mesoscale scale, and then on a micro scale, is generated for each location by entering accurate contour/route data. Ideal for mounting the anemometer system. Recorded wind data is critically analyzed and processed to reflect wind conditions.

Mikro-siting & Energy Estimation: This is the basis of the wind energy project. Wind data is formatted for speed and direction. The characteristic output of the selected wind turbine (WAY) is formatted.

Detailed contour data is prepared at short intervals to show the roughness and characteristics of the terrain. The road is optimized and a micro map is created using the software, and the energy production is estimated.

uses of wind energy in points

Special project report: After construction, the brand and VEG and Put options are evaluated, field studies and studies are carried out in detail.

A comprehensive design of the system with optimization of the generation is prepared, together with a detailed design of the procedure for road and network evacuation.

A detailed cost calculation and financial analysis shall be carried out to determine the overall profitability.

Project Management: The implementation and management of a wind power project under the IPP require a multidisciplinary approach in technical, financial and commercial terms. Close coordination and monitoring of timely implementation are equally important.

Monitoring: Energy production with respect to wind resources, frequency, and type of failures of machinery and equipment must be critically monitored and analyzed in order to optimize energy production.

WPP's revenues can only be optimized if road and emergency systems fail, especially within a few months in strong winds.

Entities: Existing wind energy projects often also need to improve their efficiency, which is decreasing over time. The critical analysis of monitoring reports, as well as on-the-spot observations and detailed investigations, contribute significantly to efficiency by reducing the time needed to resolve failures and the time needed to do so.

Due to the seasonal availability of wind resources, the increase in generation capacity depending on wind speed and the generally low utilization of the turbine, the parameterization and operating and control logic must be adapted to local conditions.

Lender: In order to meet the specialist engineers' needs for project support, in particular for a limited period of time or for a contract where the task cannot be performed with the available resources, the services of the lender's engineer are provided to the customer in accordance with the requirements evaluated jointly with the customer.

This also includes services to replace or designate suitable staff who will always meet the requirements of the project in its various technical versions.

Requirements for land for wind energy

what is wind energy used for

The area necessary for the construction of a wind farm is very diversified and depends in particular on two key factors: the desired size of the farm (which can be determined on the basis of both the installed capacity and the number of turbines) and the characteristics of the local area.

The distance between wind turbines usually depends on the rotor diameter and local wind conditions. Some estimates assume that turbines with diameters between 5 and 10 rotors should be at a certain distance from each other.

If the prevailing winds are usually from the same direction, installations with 3 or 4 different rotor diameters (perpendicular to the prevailing winds) can be installed; in multi-directional wind conditions, a distance of 5 to 7 rotor diameters is recommended.


how is wind energy produced

Traditionally, this energy has been used to grind grain and pump water but is now mainly used to produce electricity. Wind energy is becoming increasingly important in the global energy mix.

The big advantage of wind is that it is a clean and renewable form of energy. No carbon dioxide or air pollutants are emitted and no water is consumed in the energy production process. Once construction has started, wind also has a relatively low cost of operation and maintenance.

However, wind energy also faces a number of challenges. Wind speeds can vary during the day and the year, which can lead to disturbances in the operation of the power grids.

The price of wind energy has traditionally been higher than that of conventional energy sources, although the cost curve for wind energy has fallen significantly in recent years.

Concerns have also been expressed in some areas about NIMBY, such as land use, noise, and disturbance from birds.