To study about various types Water Turbines
Hydraulic turbines are uses the potential and kinetic energy of water and converted it into usable mechanical energy as efficiently as possible. The mechanical energy made available at the turbine shaft is used to run an electric motor for generate the electricity.
Different Types of Water Turbines
i. Pelton Turbine
ii. Francis Turbine
iii. Kaplan Turbine
WATER TURBINES:
Introduction:
Hydraulic turbines are uses the potential and kinetic energy of water and converted it into usable mechanical energy as efficiently as possible. The mechanical energy made available at the turbine shaft is used to run an electric motor for generate the electricity.
Classification of Water Turbines:
Impulse Turbine: Are those turbines in which the available fluid energy is converted into kinetic energy by a nozzle.
Reaction Turbine: Are those turbines in which the energy of the fluid is partly transformed into kinetic energy before it enters the runner of the turbine.
|
S.No |
BASIS |
IMPLUSE TURBINE |
REACTION TURBINE |
|
1. |
According to water flow through runner |
Tangential Flow(example:- Pelton Turbine) |
a) Axial or Parallel Flow (eg. Kaplan Turbine). b) Mixed Flow i.e. Radial and Axial (eg. Modern Francis Turbine). c) Outward Radial Flow (eg. Fourneyron Turbine) d) Inward Radial Flow (eg. Old Francis Turbine) |
|
2. |
According to head |
High Head (above 250m) :- Pelton Turbine |
Low (upto 30 m):- Propeller and Kaplan Turbine. Medium Head (60-250 m):- Modern Francis Turbine. |
|
3. |
According to discharge |
Small rate of flow: – Pelton Turbine. |
Medium rate of flow: – Modern Francis Turbine. Very High: – Propeller and Kaplan Turbine. |
|
4. |
According to specific speed (in r.p.m) |
For Pelton Turbine:-9-17 for a slow runner 17-25 for a normal runner 25-30for a fast runner 40for a double jet |
For Francis Turbine:-50–100 for a slow runner 100-150 for a normal runner 150-250 for a slow runner For Kaplan Turbine:- 250-850 r.p.m |
|
5. |
According to disposition of shaft |
Horizontal shaft and Vertical runner arrangement |
Either horizontal or vertical shaft |
2 Responses to “Lab Manual | To study about various types Water Turbines”
Anyewi George
i’ve now gained knowledge from your post.
admin
Thanks