Assume that the wind speed v the air density ρ the radius of the generator fan blade R the mass of air hitting the fan blade within a time period t m = ρπR^2Vt, the energy obtained by the fan blade E = 1/2mv^2 = 1/2ρπR^2V ^ 3t
P0=E/t=1/2ρπR^2V^3
Assume that l generator efficiency η
The power generated by the wind turbine P=1 /2ηρπR^2V^3
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How much electricity can a 5 MW wind turbine produce in 24 hours?
Suppose wind blades are installed once 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:
A kilowatt hour is also called a kilowatt hour, which means that a 1 kilowatt generator generates 1 kilowatt hour of electricity for one hour.
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 = 1,000 watts (Watt) = 1,000 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 consumedee.
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. Additionally, some public institutions in mainland China use "megawatt hour" instead of "kilowatt hour" on their bill. In Chinese, “kilowatt” is sometimes written as 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:
3.599712×10 joules;
1.3596112 metric horsepower hour;
1.3408927 britanni horsepowerques·hour;
8.599712023×10 kcal.
Baidu Encyclopedia - kilowatts
Baidu Encyclopedia - kilowatt hours
How to calculate the power curve of a wind turbine? What is the formula? The relationship between power, torque and speed
5MW=5000KW. Electrical power W = power P * time t = 5,000 * 24 = 5,000 kilowatt hours = 120,000 degrees.
Electrical energy can be converted into many other forms of energy. The process of converting electrical energy into many other forms of energy can also be thought of as the process by which current does work. The amount of electrical energy converted corresponds to the amount of work done by the current, that is, the amount of electrical work done. .
The amount of work done by the current is related to the size of the current, the voltage level, and the duration the power is on. The higher the voltage applied to the deviceThe electrical voltage is high, the greater the current flowing through it, the longer the power-up time and the more work the current does. Research shows that when the voltage across the circuit is U, the current in the circuit is I, and the on-time is t, the electrical power W (or power consumed) is: W=UIt=Pt.
Detailed information
Electric power is used to express the speed of consumption of electrical energy (the unit of electrical power is the watt or joule/second _= kilowatts are also commonly used). Active power is represented by a capital P in the formula.
Electric energy is often also a manifestation of electrical energy in electricity, which is why the kilowatt hour is generally the unit of electrical energy. Electrical power is represented by a capital W in the formula.
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 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. Additionally, some public institutions in mainland China use "megawatt hour" instead of "kilowatt hour" on their bill. In Chinese, “kilowatt” is sometimes written _.
1kW·h=3,600,000?Joule=3.6 million joules
In addition, there is a unit one level below the kilowatt·h, which is the watt ·hour (symbol: W·h , in (Whr in product description) is one thousandth of a "kilowatt hour". Typically, the energy stored in a six-cell laptop battery is about 56 Whr. 1W·h=3,600 Joules
Baidu Encyclopedia - Kilowatt hour
No recordingnt - Electrical energy
The formula for the power curve is 0.5*A* p*Cp*V^3 A is the area swept by the fan blades, P is the air density, V is the wind speed and Cp is the wind energy utilization rate. Cp is related to wind speed, rotor speed and pitch angle. Generally, for fixed pitch and wind speed conditions, Cp will first increase and then decrease with speed.