Air density has a significant effect on wind turbine
performance (Fig. 4 &6). The power available in thewind is directly proportional to air density. As air
density increases the available power also increases.
Air density is a function of air
temperature. It increases when air pressure increases
or the temperature decreases. Both temperature and
pressure decrease with increasing elevation.
Consequently changes in elevation produce a
profound effect on the generated power as a resul
changing in the air density.
Table 1 Technical specification of wind turbine
Figure 4 Effect of air density in power output
(1.65MW)
E-ISSN2249–8974
pressure and