Assume the fan blades are installed every 60 seconds. A 1,500 kilowatt wind turbine generates 25 kilowatt hours of electricity per revolution.
The calculation method is as follows:
The power generated by a 1,500 kW generator in one hour is 1,500 KWH, or 1,500 kilowatt hours of electricity
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1,500 kilowatt hours of electricity/hour ÷ 60 revolutions/hour = 25 kWh/circle.
Detailed information:
The kilowatt (Kilowatt), one of the earliest units of electrical power, now tends to be extended to the unit of power throughout the field of physics. In electricity, kilowatt hour is exactly the same thing as degree, but they have different names.
1 kilowatt = 1,000watts (Watt) = 1000 joules (Joule)/second (Second).
1 kilowatt = 1,000 Newton meters per second (N m/s)
1 kilowatt = 0.239 kcal/s
1 kilowatt = 1.36 horsepower -steam
A kilowatt hour or kilowatt hour (symbol: kW·h; often abbreviated to degrees) is a unit of energy measurement which represents the energy consumption of a device with a power of one kilowatt after one hour of use. energy consumed.
The unit "kilowatt hour" is mainly used to measure electricity, because "kilowatt hour" is easier for the public to understand than joule, and it is easier to convert to hours of electricity. use of electrical appliances. On the other hand, the joule unit of measurement is too small compared to “kilowatt-hour,” making it difficult to calculate. In mainland China, some public institutions also use "megawatt hour" instead of "kilowatt hour" on their billing sheets. In Chinese, “kilowatt” is sometimes written 瓩.
1kW·h = 3,600,000 joules = 3.6 million joules.
The physical meaning of 1 kilowatt hour is: the electrical energy consumed by an electrical appliance with a power of 1 kW for 1 hour of work (or the work done for 1 hour of work).
One kilowatt per hour is equal to:
3.599712 × 10 joules;
1.3596112 metric horsepower per hour;
1.3408927 imperial horsepower per hour hour;
8.599712023×10 kcal.
Baidu Encyclopedia - kilowatts
Baidu Encyclopedia - kilowatt hours
A 1.5 MW wind turbine, the generator rotates 1,800 times per minute Turn left and right to generate 1,500 kilowatt hours of electricity per hour, and the turbine rotates approximately 18 times per minute. This is directly related to the unit's ability.
Generally speaking, level 3 winds can be usedvalue. However, from an economic and reasonable point of view, speedss of wind greater than 4 meters per second are suitable for electricity production.
According to measurements, a 55 kilowatt wind turbine has an output power of 55 kilowatts when the wind speed is 9.5 meters per second; when the wind speed is 8 meters per second, the power is 38 kilowatts; wind speed When the wind speed is 6 meters per second, it is only 16 kilowatts; when the wind speed is 5 meters per second, it is only 9.5 kilowatts. It can be seen that the stronger the wind force, the greater the economic benefits.
Detailed information
A wind turbine is an electrical device that converts wind energy into mechanical work. Mechanical work causes the rotor to rotate and ultimately produces reciprocating output. current. Wind turbines generally consist of components such as a wind wheel, a generator (including thees devices), a director (tail), a tower, a speed-limiting safety mechanism and an energy storage device.
The operating principle of a wind turbine is relatively simple. The wind wheel rotates under the influence of the wind. It converts the kinetic energy of the wind into the mechanical energy of the wind wheel shaft. by the wind wheel shaft to produce electricity. Generally speaking, wind energy is also solar energy, so we can also say that a wind turbine is a thermal energy generator that uses the sun as a heat source and the atmosphere as a heat fluid. work.
For many centuries, wind turbines, like hydraulic machines, have played an important role in the development of productivity as a source of energy to replace human and animal energy. The widespread application of electromechanical energy in modern times and the decOpening of oil fields in the Middle East in the 1950s slowed the development of wind turbines.
In the early 1970s, due to the “oil crisis”, energy shortages appeared. People have become aware of the instability and limitations of conventional fossil energy supplies, so the search for clean and renewable energy has become a key issue in the modern economy. world. an important subject. As a renewable and non-polluting natural energy source, wind energy has once again attracted attention.
Reference documents:
Baidu Encyclopedia - Wind Turbine