classilication
The hydraulic turbines are classified on the basis of following parameter. These are as follows
@According to the type of energy at inlet #T classified On the basis of type of energy available at the inlet are.
impulse turbine: A turbine is said to be impulse turbine it at the inlet of the turbine the avacblable energy is only kinetic energy eg of impulse tur hine Pelton wheel turbine
Reaction turbine A turbine is said to be م Reaction turbine if the available energy at the turbine inlet of turbine possess kinetic energy as well as pressure energy.
eg. •
According to the direaction of flow through ours
-Hydraulic turbine are classified on the basis of the direction of flow through runner are
Tangential flow turbine - it the water along the tangent of the runners the turbine is known as tangential flow turbine.
radial Flow turbine - it the water flows in the radial direction through the runner, the turbine is called radial flow turbine.
ON INNO
radial low turbine are further devided into two tyres These ne
0 inward radial plas turbine is the water flows from outwards to inwords, radially, the turbine is known as inward radial flow.. trobine
Dout word radial flow turbine it the water flows though the radially from inward to outwards, the turbine is known as rodial flow turbine. outward
oxial Flow $100 tuobin: it the water flows though the runner along the direction. Penallel to the sunner in the radial dign axis of rotation of the runner, the turbine is called.
© mixed flow turbine : it the water flows through the runner in radial din and leaves in the din parallel to axis of rotation of the runner, the turbine is called mixed Flow turbine.
According to the head at the inlet of turbine- High head turbine: A turbine is said to be high head turbine it it has an operating head et in excess of 300m...
medium head turbine. A turbine is said to be medium head turbine it Adrobing it has an Operating heat of between 30m to 300m.
Low head turbing A turbine is said to be low head turbine its it has operating
head of 30m.
4. According to the spectric speed of turbine. Hydraulic turbine classivied into a type based on. specific speed of turbine. These are as follows
Low specific speed turbine ED medium cpeutic. Speed turbine @ High spectic speed turbine.
Low spectric speed tubine A turbine is said to be low specibic speed turbine it the specific speed of turbine between 5-15 m for impulse
yashans turbine like Pelton wheel turbi
In case of reaction turbine, is It is lies between 60-150
8PM
Medium sprauts speed + Impluse
High specific speed
16-30 31-70
Reaction
157-25
237-400