factors affecting wind turbine efficiency
DESCRIPTION
Here are some factors that could affect the efficiency of a wind turbine.TRANSCRIPT
Factors Affecting Wind Turbine
Effi ciency
I bet you already
know that …
…UNDOUBTEDLY,Wind Energy is one of the CLEANEST forms of producing power from a renewable source.
I bet you already
know that …
But are you aware that wind turbines are not that easy to
set up?
The efficiency of wind turbines depend on 5 major factors:
WIND POWER
ALTITUDE
WIND POWER
ALTITUDE
WIND POWER
OBSTRUCTIONS
ALTITUDE
WIND POWER
BLADE
AERODYNAMICS
OBSTRUCTIONS
ALTITUDE
WIND POWER
AIRTEMPERA
TURE
BLADE
AERODYNAMICS
OBSTRUCTIONS
WIND POWER1
um…yeah.
In other words,
The faster the wind speed and the stronger the wind force, the greater the amount of power generated by a wind turbine.
Different regions have different wind speeds. Therefore it’s vital to understand the relationship between wind speeds with power production.
ALTITUDE2
Places of higher
altitudes have faster wind
speeds due to various
atmospheric factors.
Higher places also have
lesser obstructions
from the surrounding
hills, trees and buildings.
Wind speed increases by
12% as the distance
between the turbine and
ground is doubled.
OBSTRUCTIONS3
Wind is slowed by trees, buildings, hills and mountains which all create some form of friction that restrict free airflow.
It is wise to measure the wind speed at a proposed site for at least one year to determine project viability.
BLADE 4
AERODYNAMICS
The shape of blades
should be accurately
selected for getting
maximum efficiency
The amount of lift for a
given airfoil depends
heavily on the angle that it makes with
the direction of the relative
wind, known as the angle
of attack.
When the angle of
attack gets too large,
turbulence developsand drag increases
significantly, while
lift is lost.
AIR5
TEMPERATURE
The power from a wind turbine will increase almost 16% as the temperature drops from + 20° C to - 20° C for any given wind speed.
Colder air is denserand increasespower output.
END
RESOURCEShttp://www.articlesbase.com/environment-articles/wind-turbine-physics-
factors-affecting-performance-1450642.html
http://www.alternative-energy-news.info/what-factors-affect-the-output-of-wind-turbines/
http://www.solarpowerwindenergy.org/2010/03/04/what-factors-affect-the-output-of-wind-turbines/
http://www.istockphoto.com/file_thumbview_approve/4912563/2/istockphoto_4912563-design-elements-wind.jpg