Wind resources at Horns Rev
Wind resources at Horns Rev
Wind resources at Horns Rev
Create successful ePaper yourself
Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.
energy. environment. knowledge. Page 23 of 69<br />
Turbulence Intensity [%]<br />
20%<br />
18%<br />
16%<br />
14%<br />
12%<br />
10%<br />
8%<br />
6%<br />
4%<br />
2%<br />
0%<br />
0 2 4 6 8 10 12 14 16 18 20 22 24 26<br />
<strong>Wind</strong> Speed [m/s]<br />
Figure 2.5 Vari<strong>at</strong>ion of mean turbulence intensity with wind speed <strong>at</strong> level 62 m, May<br />
1999 to November 2002<br />
The mean turbulence intensity <strong>at</strong> level 62 m is 0.079. Figure 2.5 shows the distribution<br />
of turbulence intensity versus wind speed. The turbulence intensity is high <strong>at</strong> low wind<br />
speeds, decreases to a minimum between 8 and 12 m/s, and increases again with<br />
increasing wind speed, probably due to increasing wave height.<br />
270<br />
300<br />
240<br />
330<br />
210<br />
11%<br />
10%<br />
9%<br />
8%<br />
7%<br />
6%<br />
0<br />
180<br />
Figure 2.6 Mean turbulence intensity <strong>at</strong> each measurement level and each sector, May<br />
1999 to November 2002<br />
30<br />
150<br />
60<br />
120<br />
90<br />
kote15<br />
kote30<br />
kote45<br />
kote62<br />
Report no.: D-160949<br />
Tech-wise A/S is an intern<strong>at</strong>ional consulting Tech-wise A/S<br />
engineering company specialised Kraftværksvej 53<br />
in energy and environment DK-7000 Fredericia
Change language