pelton turbines are suited to high head,low flow application but kaplan turbine are used for low head and a large amount of discharge needed.
kaplan turbines are expensive to design,manufacture and install as compared to pelton turbine but operate for decades.
A Pelton turbine, also known as a Pelton wheel, is a water impulse turbine developed by Lester Allan Pelton. A Kaplan turbine is a propeller turbine that that was created by Viktor Kaplan. A Francis turbine is a water turbine that was invented by James B. Francis.
pelton turbine is used for high head low flow but the turgo turbine is used for low head high flow, in pelton turbine number of jet can increased but in turgo it can't be done, in pelton the water hits the bucket once at a time but in tugo it hits more than one
It works as the principle according to Newton's second law of motion
In the center of the wheel shaft is connected to the spoon away.
Water is blasted at the buckets one by one or more jets mounted in the surroundings casing. Momentum is transferred from water to buckets and a torque is created, causing the wheel to rotate. That's why it is an impulse turbine.
Jet Ratio: it is defined as the ratio of the pitch diameter (D) of the pelton turbine to the diameter of the jet (d). It is denoted by m and is given asm = D/d (=12 for most cases)
The Kaplan turbine is a newer, more revolutionary version of the Francis turbine, which came before it. The draft tube is used so that the turbine does not need to be where the water flow is lowest.
Pelton invented a free jet water turbine called the Pelton wheel or Pelton turbine
pelton turbine is used for high head low flow but the turgo turbine is used for low head high flow, in pelton turbine number of jet can increased but in turgo it can't be done, in pelton the water hits the bucket once at a time but in tugo it hits more than one
1 Pelton Turbine 2 Kaplan Turbine 3 Francis Turbine 4 Propeller Turbine 5 Tubular Turbine
In a water turbine.
francis turbine
in 1878
it cost about US$1.8million
0 to5 %
a turbine a pelton wheel
a turbine a pelton wheel
yes