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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/
Watch Video of this presentation on Link: https://youtu.be/OFIgUfclEHU
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/
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
A steam turbine is a prime mover in which the potential energy of the steam is transformed into kinetic energy and later in its turn is transformed into the mechanical energy of rotation of the turbine shaft
A turbine is a rotary mechanical device that extracts energy from a fast moving flow of water, steam, gas, air, or other fluid and converts it into useful work. Also a turbine is a turbo-machine 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. According to the fluid used:
⢠Water Turbine
⢠Steam Turbine
⢠Gas Turbine
⢠Wind Turbine
Although the same principles apply to all turbines, their specific designs differ sufficiently to merit separate descriptions.
Working Principle Water Turbine
⢠When the fluid strikes the blades of the turbine, the blades are displaced, which produces rotational energy.
⢠When the turbine shaft is directly coupled to an electric generator mechanical energy is converted into electrical energy.
⢠This electrical power is known as hydroelectric power.
In a hydraulic turbine, water is used as the source of energy. Water or hydraulic turbines convert kinetic and potential energies of the water into mechanical power. Water turbines are mostly found in dams to generate electric power from water kinetic energy.
Classification
ď Based on hydraulic action of water
ď Based on direction of flow
ď Based on head of water and quantity of flow
ď Based on specific speed
ď Based on disposition of turbine shaft
ď Based on name of originator (commonly used turbines)
hi, I am sujon I just completed graduate at International University of Business Agriculture and Technology in Bangladesh Department of Mechanical Engineering
A steam turbine is a prime mover in which the potential energy of the steam is transformed into kinetic energy and later in its turn is transformed into the mechanical energy of rotation of the turbine shaft
A turbine is a rotary mechanical device that extracts energy from a fast moving flow of water, steam, gas, air, or other fluid and converts it into useful work. Also a turbine is a turbo-machine 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. According to the fluid used:
⢠Water Turbine
⢠Steam Turbine
⢠Gas Turbine
⢠Wind Turbine
Although the same principles apply to all turbines, their specific designs differ sufficiently to merit separate descriptions.
Working Principle Water Turbine
⢠When the fluid strikes the blades of the turbine, the blades are displaced, which produces rotational energy.
⢠When the turbine shaft is directly coupled to an electric generator mechanical energy is converted into electrical energy.
⢠This electrical power is known as hydroelectric power.
In a hydraulic turbine, water is used as the source of energy. Water or hydraulic turbines convert kinetic and potential energies of the water into mechanical power. Water turbines are mostly found in dams to generate electric power from water kinetic energy.
Classification
ď Based on hydraulic action of water
ď Based on direction of flow
ď Based on head of water and quantity of flow
ď Based on specific speed
ď Based on disposition of turbine shaft
ď Based on name of originator (commonly used turbines)
This presentation will educate you with the basics and types of a turbine . For info on any topics related to mechanical , feel free to inbox me . I'm available at vijayvicky.vicky7@gmail.com
How to Split Bills in the Odoo 17 POS ModuleCeline George
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Bills have a main role in point of sale procedure. It will help to track sales, handling payments and giving receipts to customers. Bill splitting also has an important role in POS. For example, If some friends come together for dinner and if they want to divide the bill then it is possible by POS bill splitting. This slide will show how to split bills in odoo 17 POS.
The Roman Empire A Historical Colossus.pdfkaushalkr1407
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The Roman Empire, a vast and enduring power, stands as one of history's most remarkable civilizations, leaving an indelible imprint on the world. It emerged from the Roman Republic, transitioning into an imperial powerhouse under the leadership of Augustus Caesar in 27 BCE. This transformation marked the beginning of an era defined by unprecedented territorial expansion, architectural marvels, and profound cultural influence.
The empire's roots lie in the city of Rome, founded, according to legend, by Romulus in 753 BCE. Over centuries, Rome evolved from a small settlement to a formidable republic, characterized by a complex political system with elected officials and checks on power. However, internal strife, class conflicts, and military ambitions paved the way for the end of the Republic. Julius Caesarâs dictatorship and subsequent assassination in 44 BCE created a power vacuum, leading to a civil war. Octavian, later Augustus, emerged victorious, heralding the Roman Empireâs birth.
Under Augustus, the empire experienced the Pax Romana, a 200-year period of relative peace and stability. Augustus reformed the military, established efficient administrative systems, and initiated grand construction projects. The empire's borders expanded, encompassing territories from Britain to Egypt and from Spain to the Euphrates. Roman legions, renowned for their discipline and engineering prowess, secured and maintained these vast territories, building roads, fortifications, and cities that facilitated control and integration.
The Roman Empireâs society was hierarchical, with a rigid class system. At the top were the patricians, wealthy elites who held significant political power. Below them were the plebeians, free citizens with limited political influence, and the vast numbers of slaves who formed the backbone of the economy. The family unit was central, governed by the paterfamilias, the male head who held absolute authority.
Culturally, the Romans were eclectic, absorbing and adapting elements from the civilizations they encountered, particularly the Greeks. Roman art, literature, and philosophy reflected this synthesis, creating a rich cultural tapestry. Latin, the Roman language, became the lingua franca of the Western world, influencing numerous modern languages.
Roman architecture and engineering achievements were monumental. They perfected the arch, vault, and dome, constructing enduring structures like the Colosseum, Pantheon, and aqueducts. These engineering marvels not only showcased Roman ingenuity but also served practical purposes, from public entertainment to water supply.
Welcome to TechSoup New Member Orientation and Q&A (May 2024).pdfTechSoup
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In this webinar you will learn how your organization can access TechSoup's wide variety of product discount and donation programs. From hardware to software, we'll give you a tour of the tools available to help your nonprofit with productivity, collaboration, financial management, donor tracking, security, and more.
Ethnobotany and Ethnopharmacology:
Ethnobotany in herbal drug evaluation,
Impact of Ethnobotany in traditional medicine,
New development in herbals,
Bio-prospecting tools for drug discovery,
Role of Ethnopharmacology in drug evaluation,
Reverse Pharmacology.
How to Make a Field invisible in Odoo 17Celine George
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It is possible to hide or invisible some fields in odoo. Commonly using âinvisibleâ attribute in the field definition to invisible the fields. This slide will show how to make a field invisible in odoo 17.
The French Revolution, which began in 1789, was a period of radical social and political upheaval in France. It marked the decline of absolute monarchies, the rise of secular and democratic republics, and the eventual rise of Napoleon Bonaparte. This revolutionary period is crucial in understanding the transition from feudalism to modernity in Europe.
For more information, visit-www.vavaclasses.com
Model Attribute Check Company Auto PropertyCeline George
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In Odoo, the multi-company feature allows you to manage multiple companies within a single Odoo database instance. Each company can have its own configurations while still sharing common resources such as products, customers, and suppliers.
Students, digital devices and success - Andreas Schleicher - 27 May 2024..pptxEduSkills OECD
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Andreas Schleicher presents at the OECD webinar âDigital devices in schools: detrimental distraction or secret to success?â on 27 May 2024. The presentation was based on findings from PISA 2022 results and the webinar helped launch the PISA in Focus âManaging screen time: How to protect and equip students against distractionâ https://www.oecd-ilibrary.org/education/managing-screen-time_7c225af4-en and the OECD Education Policy Perspective âStudents, digital devices and successâ can be found here - https://oe.cd/il/5yV
2. ďś Turbines are defined as the hydraulic machines which
convert hydraulic energy into mechanical energy.
ďś This mechanical energy is used in running an electric
generator which is directly coupled to the shaft of
the turbine.
ďś Thus the mechanical energy is converted into
electrical energy.
3. ďśClassification of hydraulic turbines
ď§ According to type of energy at inlet
1. Impulse turbine
2. Reaction turbine
ď§ According to direction of flow of water
1. Tangential Flow turbines
2. Axial flow turbines
3. Radial flow turbines
- Inward radial flow turbine and Outward radial flow
turbine
4. Mixed flow turbines
ContâŚ
4. ď§ According to water head and quantity of water available
1. High head & small quantity of flow of water
2. Medium head & medium flow rate
3. Low head and large flow rate
ď§ According to the specific speed of the turbine
1. Low specific speed turbine ( <60 )
ex. Pelton wheel
2. Medium specific speed turbine ( 60 to 400 )
ex. Francis turbine
3. High specific speed turbine ( above 400 )
5. ⢠IMPULSE TURBINE
If at the inlet of the turbine, the energy available is only kinetic
energy, the turbine is known impulse turbine.
Example: Pelton wheel turbine
⢠REACTION TURBINE
If at the inlet of the turbine , the water possesses kinetic energy
as well as pressure energy, the turbine is known as reaction
turbine. Example: Francis turbine , Kaplan turbine
⢠RADIAL FLOW TURBINE
If the water flow in the radial direction through the runner, the
turbine is called radial flow turbine
⢠INWARD RADIAL FLOW TURBINE
If the water flows from outward to inward radially , the turbine is
known as inward radial flow turbine.
â˘OUTWARD RADIAL FLOW TURBINE
If the water flow radially from inward to outwards, the turbine is
known as outward radial flow turbine.
6. â˘AXIAL FLOW TURBINE:
If the water flow through the runner along the direction parallel to the
axis of rotation of the runner, the turbine is called axial flow turbine.
â˘MIXED FLOW TURBINE:
If the water flows through the runner in the radial direction but leaves
in the direction parallel to axis of rotation of the runner, the turbine
is called mixed flow turbine.
⢠TANGENTIAL FLOW TURBINE:
If the water flows along the tangent of the runner, the turbine is
known as tangential flow turbine.
7. â˘Impulse turbine & Reaction turbine
1. Impulse turbine
a. Water from penstock to
turbine via one or more
nozzle.
b. Pressure energy
converted into kinetic
energy.
c. Rotation of wheel due to
tangential force created
by impact of jet.
8. a. Both kinetic and pressure
energy.
b. Feeding of water through
fixed blades in casing.
c. Static pressure at inlet is
greater than outlet of
runner.
d. Rotation due to impulse
reaction and due to
reduction in pressure so it is
called Reaction turbine.
ď§ Reaction turbine
9. IMPULSE TURBINE REACTION TURBINE
⢠All the potential energy
is converted into
kinetic energy by
nozzle before entering
to turbine runner.
⢠Flow regulations is
possible without loss.
⢠Unit is installed above
the tailrace.
⢠Blades are only in
action when theyare in
front of nozzle.
⢠Only a portion of the
fluid energy istransferred
into kinetic energy
before thefluid enters the
turbine.
⢠Flow regulation is
possible with loss.
⢠Unit is kept entirely
submerged in
waterbelow tailrace.
⢠Blades are in action at all
the time
12. Designed and developed by American engineer James B.
Francis in 1848.
Head engineer in textile factory city of Lowell Massachusetts
Improved on these designs to create a turbine with 90% efficiency.
13. ⢠Designed and developed by American engineer Janes B. Francis in184
⢠Inward reaction flow turbine
⢠Water head : 10 to 650 meters
⢠Power output range : 10 MW to 750 MW
⢠Speed range : 83 to 1000 rpm
⢠In Old Francis radial discharge at outlet
⢠In Modern Francis, Water enters radially from outlet periphery and
leaves the runner in the axial direction
⢠Main components of turbine
1. Spiral Casing 2. Guide vanes 3. Runner
4, Governing mechanism 5. Draft tube
⢠This is the most common turbine type in hydroelectric stations
16. 1. Penstock :
Large diameter tube through water from dam comes to turbine inlet.
It is made from steel.
2. Spiral Casing :
a. It is a closed passage whose diameter gradually decreases along
flow of direction. Area is maximum at inlet and nearly zero at exit.
b. To maintain constant flow rate, numerous openings (wicket gates)
provided.
c. The purpose of casing to distribute water over guide vanes
and prevent formation of eddies.
d. made of cast steel, plats steel or concrete depends on head.
3. Guide vanes :
a. It is aerofoil shaped vanes fixed between two rings.
b. It convert a part of pressure energy into kinetic energy.
c. Each guide vane can rotate about it pivot centre hence it also
serves to direct the flow at design angles to the blade runners.
17. 4. Governing mechanism :
It can change the position of guide vanes to vary the flow on
turbine.
5. Runner :
a. Profile is designed so that water enter inwards in radial direction
and leave it in the axial direction.
b. Runner rotate due to impulse and reaction effects.
c. It is classified according to fast , medium & slow.
d. Made of cast iron(small unit) , stainless steel (large unit), bronze
(impure water).
e. It is keyed to shaft of turbine.
6. Draft tube :
a. It is gradually expanding tube which discharge water passing
through the runner to tail race.
b. Generally with increasing diameter in flow direction.
20. â˘The Pelton wheel is a water tangential flow impulse
turbine.
⢠It was invented by Lester Allan Pelton an American
engineer in the 1870s.
⢠This turbine is used for high heads.
⢠The main components of Pelton wheel or turbine.
1. Nozzle & spear
2. Runner and Bucket
3. Casing
4. Breaking jet
22. ⢠Nozzle & spear
a. Amount of water striking the bucket of water controlled by
spear in the nozzle.
b. Spear is conical needle which operated either by hand
wheel over automatically axially depends on size of unit.
â˘
23. ⢠Runner
a. It consists of circular disk on periphary of which number of
buckets evenly spaced are fixed
b. Shape of bucket is of a double hemi-spherical cup.
Each bucket is divided by spiltter which divide the jet into
two parts.
c. Made of Cast iron or cast steel bronze or stainless steel
depends on head.
24. â˘Casing
a. Prevent spalashing of water.
b. Act as a safe guard
c. Made of cast iron, fabricated steel
â˘Breaking jet
â˘Jet of water used to
stop runner in short
time.
â˘It strikes at the back
of vane.