(1)P output=P0/m2×0.5m2=1000W/m2×0.5m2=500W;
(2) According to the question, the output power P of the The wind turbine is related to the wind speed v Proportional to the cube, i.e. P=kv3,
∵The maximum output power of the generator is 400 W and the maximum speed limited to the wind is 12 m/s, then 400 W = k× (12 m/s)3,
∴k=
| 400W< /td> |
| (12m/s)3 | < /tr>
∵P=kv3,
∴The wind speed when the power output of the wind turbine is 50W:
v =
| 3 |
|
(3) Total lamp power:
P=50W×40=2000W =2kW,
Electric energy consumed in one month:
< p>W=Pt=2kW×10×30h=600kW?h=600 degrees;(4 ) Maximum total power of 10 wind power generation devices:
P= 400W× 10=4000W=4kW，
∵P=
| W |
| t |
∴How long does it take to get to work:
t=
| W |
| P |
| 600kW?h |
| 4kW |
So the answer is: (1) 500 W; (2) 6; (3) 600; (4) How long does it take to work 150 hours;
The advantages of wind energy mainly include the following aspects:
Clean and environmentally friendly: Wind energy does not does not produce harmful gases such as carbon. dioxide and sulfur dioxide. It will not pollute air and water sources and will not pollute the environment.
Rich resources: Wind energy is a renewable energy source. Wind energy production does not consume the Earth's limited resources compared to non-renewable energy sources such as fossil energy and nuclear energy. , it has more lasting benefits.
Low cost: Compared totraditional thermal and nuclear power generationThe cost of energy such as electricity and wind power is low, and the maintenance and operation costs of wind power generation equipment are also low, making it makes it very economical.
Strong flexibility: Wind power resources are widely distributed, and wind power plants can be built offshore, in plains, in mountains and elsewhere, and the scale of Wind power plants can be adjusted as needed.
Can develop in collaboration with other energy sources:Wind energy and other energy sources, such as solar energy, hydropower, etc., can develop collaboratively to form a complementary energy supply system. and improve the efficiency of energy supply.
Data source reference: XiheEnergy Big Data Platform (xihe-energy)
In the platform, based on weather data, simulations are carried out in a certain preset of a wind turbine/wind farm in a geographical location, or restore the historical energy production curve of a real wind turbine/wind farm. By clarifying the location, time and data source, an accurate power curve at the hourly level can be obtained.
Wind energy production requires the acquisition of a variety of weather data in order to optimize the operation of wind turbines and predict wind energy production. This weather data can help wind turbines adjust blade angle, rotation speed and direction to maximize the use of wind energy.
In short, wind energy has multiple advantages such as environmental protection, sustainability, low cost,great flexibility and coordinated development with other energy sources. This is one of the important directions for future energy development.