1. Dr. Mohammad Ilias Inam
Assistant Professor,
Department of Mechanical Engineering,
Khulna University of Engineering & Technology,
Khulna-9203.
Md. Faysal Hossain
Roll no. 1405079
Section: B
SUPERVISED BY: PREPARED BY:
Khulna University of Engineering & Technology

2. Sail of Ships Agriculture Pumping Water
HISTORICAL BACKGROUND

3. Small scale winds Large scale winds
CAUSES BEHIND THE FLOW OF WIND

4. Advantages
Wind energy is a clean fuel
source
Wind power does not use water
Wind is a domestic source of
energy
Wind power is inexhaustible.
Wind power is cost-effective
Wind turbines can be built on
existing farms or ranches.
Challenges
 Installation is costly.
 Good wind sites are often
located in remote locations.
 Turbines might cause noise.
 Turbine blades could damage
local wildlife.
 Basement design in offshore
side is difficult.
ADVANTAGES AND CHALLENGES OF WIND ENERGY

5. 𝑃 =
1
2
𝜌𝐴𝑣3
Where,
P = power of wind
v = velocity of wind
𝜌 = density of air
POWER IN WIND

6. 𝑈 𝑍 =
u
∗
𝜅
𝑙𝑛
𝑧
zo
− 𝜓
U = Wind speed
z = Height
zo = roughness length
u* = friction or shear velocity
𝜅 = Von Karman constant (∼ 0.4)
𝜓 = atmospheric stability function
𝜓 > 0 : Day
𝜓 < 0 : Night
WIND PROFILE

7. ROUGHNESS LENGTH

8. Horizontal Axis
Wind Turbines
Vertical Axis Wind Turbines (VAWT)
Darrieus wind
Turbine
Savonius wind
Turbine
Ducted wind
turbines
DIFFERENT TYPES OF WIND TURBINE

9. THE INSIDE OF A WIND TURBINE
i. Anemometer
ii. Blades
iii. Brake
iv. Controller
v. Gear box
vi. Generator
vii.High-speed shaft
viii.Low-speed shaft
ix. Nacelle
x. Pitch
xi. Rotor
xii.Tower
xiii.Wind direction
xiv.Wind vane
xv.Yaw drive
xvi.Yaw motor

10. ONSHORE WIND TURBINES
Set up on the LAND
Worldwide 240,000 commercial size
wind turbine
Wind power capacity is
421,000 MW
enough to power 38 Million American
households
But Unpredictable and Noisy
Producing 4% of the world’s electricity

11. ONSHORE WIND TURBINES
set up on the Water.
number of offshore wind turbines in
Europe is 3,589
offshore wind power installed globally is
14,384 Gigawatt
But expensive and difficult to
Build and maintain
energy output up to 40% higher than
onshore.
Best solution for populated coastal area

12. STABILIZATION OF AN OFFSHORE FLOATING WIND TURBINE
Floating platform concepts for
offshore wind turbines
Natural progression of
substructure designs from shallow
to deep water

13. WIND ENERGY POTENTIAL IN BANGLADESH
Energy generation by source in Bangladesh
Wind turbines in Muhuri Dam
Area of Feni

14. THANK YOU
For Your Kind Attention