At the Pervalka site the wind velocity
of 6-10 m [s.sup.-1] and wind direction of 338[degrees] were measured.
Wind static pressure is transformed from the kinetic energy of the free wind stream wherever the wind velocity
falls to zero on a wall surface, so the kinetic energy also becomes zero.
For further analysis of wind velocity
components, average air flow vectors have been drawn according to linear trends in wind components.
The variables, which have not been defined earlier, have the following meaning: [v.sub.w] is the wind velocity
in m/s, [L.sub.PV] is the height and [W.sub.PV] the width of the PV module in m, [[eta].sub.Tref] is the electrical efficiency of the PV module at the reference temperature [T.sub.ref] and the global solar irradiance of 1000 W/[m.sup.2], [[beta].sub.ref] is the temperature coefficient of the PV module in 1/K, and [T.sub.ref] is the temperature at which the PV module's electrical efficiency amounts to [[eta].sub.Tref] in K.
In Cebu City, wind velocity
was estimated at 25 to 30 kph with gustiness of 45 to 60 kph, said Councilor Dave Tumulak.
The first case is to study the effect of wind velocity
on the cooling tower recirculation.
 carried out a series of experiments to compare the influence of the wind pressure distributed with three kinds of configuration and wind velocity
. Blessmann  showed several experimental studies of wind effects on domes and the importance of simulation of the main characteristics of natural wind as well as the influence of size and position of openings.
On the other hand, to increase the annual energy yield of VS-WPGS, MPT control is essential under the rated wind velocity
. Then, by changing the rotor velocity of DDSG according to the varying wind velocity
, maximum power is extracted from available wind [21, 22, 32, 33].
The methodology consisted of recording wind velocity
data, preliminarily for 8 months, with a Davis Vantage Pro2 meteorological station located 14 m above the ground.
Such questions can be approximately addressed with the simpler empirical rule-of-thumb that icebergs drift at the ocean current velocity plus 2% of the wind velocity
. This relationship has been observed in empirical studies for decades, but it has never previously been derived from first principles.
(2006) found that the monthly variability in sea level increased during the winter and summer, and decreased during the spring and autumn, mainly caused by the wind velocity
Humidity was estimated as 91%, while wind velocity
was measured at 72 km/hour.