Question

Problem 1) At Al-Ummari in the East of Jordan the following wind speed vs. hours per year data were registered by a cup anemometer 54 | 67 | 7-t | t-9 |9-10 | 10- 12-113-114-113-116- 760 bours per year As an expert in wind energy, you are asked to evaluate the site potential for the exploitation of wind energy. To do that you need to do (among other things) the following: a draw the probability density function of the wind speeds b draw the cumulative curve c work out the average annual speeds d it a Weibull curve to the data working out the parameters C and k

Answer 1

ANSWER:

Use spreadsheet and show the plotted probability density function as in figure below. 4 CD Frequency 0 0.5 4.5 8.5 12.5 More Bin

Show the cumulative curve as in figure below xy 236 991 1422 1445 0.5 1.5 1486.5 2.5 3.5 5057.5 118 3555 1204 766 623 426 233 162 75 29 25 23 14 10 4.5 5.5 5418 4213 6.5 4049.5 3195 8.5 1980.5 1539 787.5 362.5 337.5 333.5 217 165 7.5 9.5 10.5 12.5 13.5 14.5 15.5 16.5

6000 5000 4000 3000 2000 1000 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17

Calculate the average annual speeds. 32815 7684 -4.27 m/s Average annual speed