from this ppt you can almost aware about the operation of hydraulic turbines and various specification releated to it...
if you want to attains the knowledge about the turbines then must watch this ppt,... thankyou!
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from this ppt you can almost aware about the operation of hydraulic turbines and various specification releated to it...
if you want to attains the knowledge about the turbines then must watch this ppt,... thankyou!
if you want to follow me on twitter then contact me at
ishantgautam51@yahoo.com
Watch Video of this presentation on Link: https://youtu.be/xIGlZ3UvLdw
For notes/articles, Visit my blog (link is given below).
For Video, Visit our YouTube Channel (link is given below).
Any Suggestions/doubts/reactions, please leave in the comment box.
Follow Us on
YouTube: https://www.youtube.com/channel/UCVPftVoKZoIxVH_gh09bMkw/
Blog: https://e-gyaankosh.blogspot.com/
Facebook: https://www.facebook.com/egyaankosh/
hi, I am sujon I just completed graduate at International University of Business Agriculture and Technology in Bangladesh Department of Mechanical Engineering
Hydraulic Turbines-Classification,Impulse and Reaction Turbine, Layout of Hyd...Mechanicalstudents.com
Hydraulic turbines are machines which convert hydraulic energy into mechanical energy. If the machine transforms mechanical energy into hydraulic energy it is called a pump. Thus in turbines, fluid does work on the machine and machine produces power. but, the pump absorbs the power and work is done on the fluid.
For more information, visit https://mechanicalstudents.com/hydraulic-turbines-classification-impulse-and-reaction-turbine-layout-of-hydroelectric-power-plant/
Here you find all about Kaplan Turbine. You will also able to know how its work, main parts of it, design factors, equations, application, capacity, efficiency, advantages-disadvantages and etc. I think it will very much helpful for you. If you find any problem please do inform for correction. Thank you.
hi, I am sujon I just completed graduate at International University of Business Agriculture and Technology in Bangladesh Department of Mechanical Engineering
Hydraulic Turbines-Classification,Impulse and Reaction Turbine, Layout of Hyd...Mechanicalstudents.com
Hydraulic turbines are machines which convert hydraulic energy into mechanical energy. If the machine transforms mechanical energy into hydraulic energy it is called a pump. Thus in turbines, fluid does work on the machine and machine produces power. but, the pump absorbs the power and work is done on the fluid.
For more information, visit https://mechanicalstudents.com/hydraulic-turbines-classification-impulse-and-reaction-turbine-layout-of-hydroelectric-power-plant/
Here you find all about Kaplan Turbine. You will also able to know how its work, main parts of it, design factors, equations, application, capacity, efficiency, advantages-disadvantages and etc. I think it will very much helpful for you. If you find any problem please do inform for correction. Thank you.
Classification of turbines – heads and efficiencies – velocity triangles. Axial, radial and mixed flow
turbines. Pelton wheel, Francis turbine and Kaplan turbines- working principles - work done by
water on the runner – draft tube. Specific speed - unit quantities – performance curves for turbines – governing of turbines.
A turbine (from the Latin turbo, a vortex, related to the Greek is a rotary mechanical device that extracts energy from a fluid flow and converts it into useful work. The work produced by a turbine can be used for generating electrical power when combined with a generator A turbine is a turbomachine with at least one moving part called a rotor assembly, which is a shaft or drum with blades attached. Moving fluid acts on the blades so that they move and impart rotational energy to the rotor. Early turbine examples are windmills and waterwheels.
Applications of turbines-Hydroelectric Power PlantsAnand Prithviraj
Different types of turbines used in hydroelectric power plants based on the working parameters such as head, flow, etc., Characteristics of a turbine; specific to its applications in a dam.
The turbine capable of working under the high potential head of water is the Pelton Wheel Turbine which works on the head greater than 300 m.
The runner consists of a circular disc with a suitable number of double semi-ellipsoidal cups known as buckets which are evenly spaced around its Periphery.
One or more nozzles are mounted so that, each directs a jet along the tangent to the circle through the centers of the buckets called the Pitch Circle.
For more information, visit https://mechanicalstudents.com/pelton-wheel-turbine/
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Contains the recent trends in automobile
Gives brief idea about the each trend. Also contains history, working ,recent development of these trends in market.
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Hydraulic turbines
1.
2. CONTENT
1] DEFINATION OF HYDRAULIC TURBINE
2] CLASIFICATION
3] TYPES
3.1] Pelton turbine
3.2] Kaplan turbine
3.3] Francis turbine
4] DIFFERENCE BETWEEN PELTON , KAPLAN ,
FRANCIS TURBINES.
3. INTRODUCTION
• A water turbine is a rotary machine that converts kinetic
energy and potential energy of water into mechanical work
and rotates the shaft to produce electric energy.
Basic working principle:-
Hydraulic turbine converts the potential energy of
water into mechanical work.
4. CLASSIFICATION
• Based on head
a) High head turbines
b) Medium head turbines
c) Low head turbines
• Based on hydraulic action of water
a) Impulse turbines
b) Reaction turbines
• Based on direction of flow of water in the runner
a) Tangential flow turbines
b) Radial flow turbines
c) Axial flow turbines
d) Mixed flow turbines
5. Three most popular turbines are
• PELTON WHEEL { PELTON TURBINE}
• KAPLAN TURBINE {PROPELLER TURBINE}
• FRANCIS TURBINE
6. PELTON WHEEL
The Pelton wheel is an impulse type water
turbine. It was invented by Lester Allan Pelton
in the 1870s.
This turbine is used for high heads
7. SPECIFICATION
• Power generation is about 400MW.
• The speed rate ranges from 65 to 800rpm.
• The efficiency is about 85%.
• The runner diameters is between 0.8 t0 6.0m.
• The operational head is from 15 to 1800m.
8. MAIN COMPONENTS
1] Nozzle and spear
2] Runner and bucket
3] Casing
4] Breaking jet
1] Nozzle :- It controls the amount of water striking
the vanes of runner.
2] Casing :- It is used to prevent splashing of
water.
9. 3] Runner and Bucket :- It is circular disc on the
periphery on which evenly spaced bucket are
fixed.
4] Breaking jet :- Its function is to stop the
runner in a short time period.
10. WORKING
1. The flow of water is tangential to the runner. So it is
a tangential flow impulse turbine.
2. The runner consists of a single wheel mounted on a
horizontal shaft.
3. Water falls towards the turbine through a pipe called
penstock and flows through a nozzle.
4. The high speed jet of water hits the buckets (vanes)
on the wheel and causes the wheel to rotate.
5. A spear rod which has a spear shaped end can be
moved by a hand wheel.
6. This movement controls the flow of water leaving
the nozzle before it strikes the bucket.
11. 7. The bucket or vane is so shaped that when the
water strikes, it gets split into two and gives it an
impulse force in the center of the bucket. This
bucket is also known as splitter.
12.
13. SR NO. STATION POWER
GENERATED[MW]
1 AMBALA CANTT[INDIA] 800
2 BIEUDRON[SWISS] 1269
3 CASTAIC [US] 1500
14. KAPLANTURBINE
• The Kaplan turbine is a propeller-type water
turbine which has adjustable blades. It was
developed in 1913 by Austrian professor Viktor
Kaplan.
• It is mainly used for low-head applications.
15. SPECIFICATIONS
• The head ranges from 10–70 metres
• The output varies from 5 to 200 MW.
• Runner diameters are between 2 and 11 metres.
• The rotational speed rate ranges from 69.2 rpm
to 429 rpm
• It gives highest efficiency which is over 90%.
16. THE MAIN COMPONENTS ARE :-
1] Scroll casing
2] Guide vanes
3] Draft tube
4] Runner
5] Hub
1] Scroll casing: It is the casing which guides the
water and control the water passage.
2] Guide vanes : It is the vanes which guide the
water and perform same function that by scroll.
17. 3] Draft tube:- It discharges the water to trail
race through gradually expanding tube.
4] Runner :- It is connected to shaft of the
generator.
5] Hub:- It part on which runner is mounted
18. WORKING
• The water from the penstocks enters the scroll casing and
then moves to the guide vanes.
• From the guide vanes, the water turns through 90° and
flows axially through the runner.
• For Kaplan Turbine, the shaft of the turbine is vertical.
The lower end of the shaft is made larger and is called
‘Hub’ or ‘Boss’.
• The vanes are fixed on the hub and hence Hub acts as
runner for axial flow turbine.
RunnerWater flow out
19.
20. APLLICATIONS
• The kaplan turbine is used in Indian.
SR
NO.
STATION POWER
GENERATED
[MW]
1. LPH 55
2. KADRA 150
3. KODASSALLI 120
4. ALMATTI 275
21. FRANCIS TURBINE
• The Francis turbine is an inward-flow reaction
turbine that combines radial and axial flow
concepts.
• It was developed by James .B. Francis.
22. SPECIFICATION
• They operate in a water head from 40 to 600 m
(130 to 2,000 ft).
• The power generated is 800MW.
• The speed range of the turbine is from 75 to
1000 rpm.
• It give efficiency of about 90%.
• The runner diameters are between 0.91 to 10.6
m.
23. THE MAIN PARTS ARE :-
1] Spiral casing
2] Guide vanes
3] Runners
4] Draft tube
1] Spiral casing :- It guides the water to the guide
vanes and also control the flow.
2] Guide vanes :- They guide the water to runner
and get closed on increase in flow.
24. 3] Runner :- They are heart of the turbine and
rotate on the impact of flow.
4] Draft tube :- It is place from where the water
is discharged from the turbine
25. WORKING
• Penstock conveys water from the upstream to the turbine
runner. Spiral Casing constitutes a closed passage whose
cross-sectional area gradually decreases along the flow
direction; area is maximum at inlet and nearly zero at exit.
• The vanes direct the water on to the runner at an angle
appropriate to the design, the motion of them is given by
means of hand wheel.
• Runner Blades move due to the driving force on the runner
which is due to impulse and reaction effect.
• Draft Tube is gradually expanding tube which discharges
water, passing through the runner to the tail race.
26.
27. The Francis turbine are used in places
like:-
SR NO . PLACES POWER GENERATION
[MW]
1 Koyna IV (India) 250
2 Turkwell (Kenya) 53
3 Karun (Iran) 250
4 Three Gorges (China) 765
28. DIFFERENCE BETWEEN
PELTON,KAPLAN,FRANCIS
PARAMETERS PELTON TURBINE KAPLAN TURBINE FRANCIS TURBINE
TYPE OF TURBINE IMPULSE TYPE PROPELLER TYPPE INWARD FLOW
REACTION TYPE
POWER GENRATION
[MW]
400 200 800
SPEED RATE[rpm] 65 - 800 70-429 75 -1000
EFFICIENCY[%] 85 80 90