What is wind?
Wind can basically be defined as moving air. Wind is accrued from that the earth is surrounded by atmospheric pressures of different magnitudes. Whenever there is pressure difference in different parts of the earth wind is then forced to flow from one region to another. In fact, air form wind when it moves. It is also crucial to note that cold wind is denser and has more particles or molecules than the hot air. In that case, wind cycle begins when hot air rises and the cold air that is actually denser moves from its location to occupy the space left by the warm or hot air. Wind is achieved as a result of moving air or the movement of air from one point to another.
Wind is also affected by the movement of the earth. When the earth rotates, the air which occupies the immediate atmosphere moves as well. When the air moves, we get what we call the wind.
How can I measure wind to determine if it can produce more energy?
To measure wind, one requires to consider the direction of the wind as well as the speed of the wind. Instead of measuring the wind speed and direction on your own, it is easier to have a look at daily wind speeds represented on a broad scale. Most of the meteorological stations are known to post all the data about wind speed on their websites and it is easier for you to look up for the wind speed and direction at your location.
Basically, wind speed is measured by anemometers and an anemometer is a device or apparatus made of three special cups point in one direction. Wind speed and force can be measured by just looking at the meter below the wind cups. This will tell you if the wind speed is good enough to produce the wind energy you need.
What is a wind turbine and how does it work?
A wind turbine is basically a fly wheel which has been fitted with wings. The wind turbine normally produce a rotational movement when hit by the wind. Technically, scientists have defined a wind turbine as a machine that can transform kinetic energy produces by the moving wind in electrical energy.
The wind turbine works because it has various components which are crucial as far as the energy production is concerned. The main parts are the axle, gearbox, generator, the control system and the transformer. When the wind hits the wings, the axle is forced to turn in a particular direction. This produces a rotational movement. The rotation is propagated by the gearbox. As a result of the movements stated earlier, the generator produces an electrical energy while the generator steps up the electrical power. The resultant power is then regulated by a control system.
How efficient is a wind turbine as far as the production of wind energy is concerned?
Wind turbines are highly sensitive to wind movements and in that case, they can start operating and even producing wind energy at wind speed of as little as 4 to 5 m/s. The maximum speed which can produce large quantities of energy is basically approximately 15m/s. However, when the wind sores to a speed of 25 m/s, the system will automatically shut down because of the fact that the turbine will have reached a critical point or the yielding point.
With the modern turbines you can easily generate electricity of up to 80% per single period of time. For instance when there is a very strong wind current, a wind turbine can produce up to a maximum electrical energy of about 80% within an hour. This is a very huge amount per unit time.
Is offshore wind energy advantageous than onshore wind energy?
In terms of construction and development, the onshore winds energy in basically more advantageous than onshore wind energy production. Offshore wind energy production is exposed to hostile environment within the sea. On the other hand, the onshore wind energy production is more reliable and less prone to hostile environments as that experienced in the sea. It is easier to build an onshore wind energy that an offshore one simple because onshore areas are accessible than the offshore areas.
Offshore wind energy is more reliable when other factors are held constant. For instance in the event that there are no storms in the seas, companies accrue a lot of wind power. The offshore wind energy production will be more efficient is mass production of wind turbines are produced. This will ensure that the production of wind energy improves in the coming years. It is crucial to understand that wind energy accrued from the sea is more as composed to that accrued from the land surface.