VAWT Design Spec: 50KW Output, 2m Width, 35m/s Operational Wind

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In summary, the conversation discusses the possibility of a Vertical Axis Wind Turbine (VAWT) with specific parameters, including an output power of 50 KW, system width of 2 m, operational wind speed of 35 m/s, and system height of 5m. The formula to calculate power output of a VAWT is also mentioned, with the given values resulting in 57,880 Watts. The conversation also mentions the potential for using a helical twisted VAWT with funnels to increase power and reduce size.
  • #1
jinncraft
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Hi

Is there a VAWT with the following parameters

1. output power 50 KW
2. system width 2 m
3. operational wind speed 35 m/s
4 cut in speed 2 m/s
5 cut out speed 80m/s
6 system height 5m

does any company have a VAWT that works in this range or can it design one

Thanks
 
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  • #2


jinncraft said:
Hi :smile:

Is there a VAWT with the following parameters

1. output power 50 KW
2. system width 2 m
3. operational wind speed 35 m/s
4 cut in speed 2 m/s
5 cut out speed 80m/s
6 system height 5m

does any company have a VAWT that works in this range or can it design one

Thanks :smile:

If using the formula to calculate power out of VAWT is:

P(Watts)= 1/2 x Roh x Area x (Velocity)^3 x Cp X Ng x Nf

Assume
Roh= 1.25
Cp= 0.45 (for good design-max ~0.59)
Ng (efficiency)= 0.8
Nf (Cooficient of friction)= .6

Plugging the values given in the formula gives:

P(W)= 0.5 x 1.25 x (5 x 2) x (35)^3 x 0.45 x 0.8 x0.6
P(W)= 57,880 Watts

Considering this prototype of the helical twisted http://renewable-solar-energy.blogspot.com/2010/04/lebanons-vertical-axis-wind-turbine.html" with funnels it is possible to reduce the size with lower wind speed. It is also possible to use indirect drive and increase the power since the helical twisted VAWT produces larger torque than HAWT.
 
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  • #3
Hello,
Why do you calculate area with 5*2 ? is it 5m in length and 2 m width blade?
 

1. How does a VAWT design with a 50KW output compare to other wind turbine designs?

A VAWT design with a 50KW output is considered to be a medium-sized wind turbine. It is smaller than traditional horizontal-axis wind turbines, but larger than smaller scale VAWT designs. The 50KW output means that it can generate 50 kilowatts of power at its maximum output, which is enough to power several homes or a small business.

2. What is the significance of a 2m width in the VAWT design spec?

The 2m width in the VAWT design spec refers to the diameter of the turbine's rotor. This measurement is important because it determines the amount of wind that the turbine can capture. A larger rotor diameter means that the turbine can capture more wind and generate more power.

3. Why is 35m/s the designated operational wind speed for this VAWT design?

The operational wind speed of 35m/s is the optimal wind speed for this VAWT design to generate its maximum output of 50KW. This means that the turbine will produce the most electricity at this wind speed. However, the design can still operate in wind speeds ranging from 3m/s to 35m/s, with decreasing output as the wind speed decreases.

4. What factors influence the overall efficiency of a VAWT design with a 50KW output?

The overall efficiency of a VAWT design is influenced by several factors, including the design of the blades, the height of the turbine, the rotor diameter, and the wind speed. A well-designed VAWT with a larger rotor diameter, taller height, and efficient blades can result in a higher efficiency and increased power output.

5. Can this VAWT design be used for both residential and commercial purposes?

Yes, this VAWT design with a 50KW output can be used for both residential and commercial purposes. It is suitable for small businesses or homes that require a moderate amount of electricity. However, for larger commercial or industrial applications, multiple turbines may be needed to meet the energy demands.

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