| dc.description.abstract | As energy consumptions by human societies are increasing rapidly over the
years, more energy is needed to fulfill the requirement of daily life usage. On the other hands,
sources of energy such as gas & coal are decreasing at high speed. The only alternative
available is using renewable energy that can be made from various natural sources like wind,
sunlight etc. Among them wind energy can be obtained by using mechanism such as wind
turbine. There are generally two different types of wind turbines. One type is built with the aim
of generating electricity from wind with high speeds. On the other hand, the other type is built
especially for areas with low wind speeds, such as Bangladesh.
Wind turbines consist of a set of blades attached to a rotor hub, which together form
the rotor; this rotor deflects the airflow, which creates a force on the blades, which in turn
produces a torque on the shaft and the rotor rotates around a horizontal axis, which is mainly
attached to a gearbox and generator. The generator generates electricity. We have undertaken
a project to design a wind turbine and tests its suitability of usage in aspect of Dhaka city. The
design process includes the selection of the wind turbine type and the determination of the
blade airfoil, pitch angle distribution along the radius, and chord length distribution along the
radius. The pitch angle and chord length distributions are optimized based on conservation of
angular momentum and theory of aerodynamic forces on an airfoil. The objective it is expected
that the present work will provide a good piece of findings with valuable information and
results to be used by academicians as well as industrial engineers. | en_US |
