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Question
what is the difference between impulse and reaction turbines ?
 Question Submitted By :: Mechy08
I also faced this Question!!     Rank Answer Posted By  
 
  Re: what is the difference between impulse and reaction turbines ?
Answer
# 1
Impulse turbines operates under impulse forces only,whereas
in case of reaction turbines, both impulse and pressure
energy are utilized to operate the turbines.
 
Is This Answer Correct ?    293 Yes 77 No
Mechy08
 
  Re: what is the difference between impulse and reaction turbines ?
Answer
# 2
in an impulse turbine entire pressure energy is converted in
to kinetic energy as in case of a pelton turbine where the
nozzle does this..
In a reaction turbine only a part of the pressure energy is
converted to kinetic energy as in case of Francis and kaplan
turbines...
in case u want to know more pls refer Hydraulic Machines by
Modi And Seth...
 
Is This Answer Correct ?    213 Yes 58 No
Abhishek
 
 
 
  Re: what is the difference between impulse and reaction turbines ?
Answer
# 3
Impulse turbine works on the principle of Newton's second
law of motion.
Reaction turbine works on the principle of Neewton's third
law of motion"For every action there is an equal and
opposite reaction"
 
Is This Answer Correct ?    135 Yes 67 No
Rajkumar
 
  Re: what is the difference between impulse and reaction turbines ?
Answer
# 4
impulse turbine:pressure energy is converted to kinetic
enrgy...eg pelton wheel
reaction turbine:only apart of pressure enrgy is converted
to kinectic enrgy....eg francis,kaplan
 
Is This Answer Correct ?    100 Yes 37 No
Madhukar Moogala
 
  Re: what is the difference between impulse and reaction turbines ?
Answer
# 5
The main difference between reaction and impulse turbine is
that reaction turbine operates on newtons third law of
motion that is when steam leaves the rotor blades at an
angle the turbine is pushed towards opposite direction and
to a certain extent static pressure impulse is also
utilised for the movement.
Where as in impulse turbine only kinetic head of steam is
responsible for movemement of turbine.that is movement of
turbine takes place in direction of impact and not opposite
to the impact as was the case with reaction turbines.
 
Is This Answer Correct ?    89 Yes 24 No
Pragnesh
 
  Re: what is the difference between impulse and reaction turbines ?
Answer
# 6
in Impulse turbine only kinetic energy is uesd whereas in
reaction turbine both presure energy & kinetic energy is
used
 
Is This Answer Correct ?    75 Yes 19 No
Prasad Surendra Naik
 
  Re: what is the difference between impulse and reaction turbines ?
Answer
# 7
# 6

in Impulse turbine only kinetic energy is uesd whereas in
reaction turbine both presure energy & kinetic energy is
used
 
Is This Answer Correct ?    58 Yes 20 No
Happy
 
  Re: what is the difference between impulse and reaction turbines ?
Answer
# 8
In impulse turbine, the drop in pressure of steam takes
place only in nozzles and not in moving blades. This is
obtained by making the blade passage of constant cross-
sectional area.
Impulse-Reaction turbine
- In this type, the drop in pressure takes place in fixed
nozzles as well as moving blades.
- The pressure drop suffered by steam while passing through
the moving blades causes a further generation of kinetic
energy within these blades, giving rise to reaction and add
to the propelling force, which is applied through the rotor
to the turbine shaft.
- The blade passage cross-sectional area is varied
 
Is This Answer Correct ?    64 Yes 23 No
Vivek Kumar Singh
 
  Re: what is the difference between impulse and reaction turbines ?
Answer
# 9
impulse turbine works on the principle of impulse ie., a
force acting for a short period of time and the fluid flows
across the vane but reaction turbine works on recative
forces i.e., due to force of the high velocity fluid, the
vane tends to rotate in the opposite direction e.g the lawn
sprinkler works on reative forces
 
Is This Answer Correct ?    30 Yes 23 No
Karthick
 
  Re: what is the difference between impulse and reaction turbines ?
Answer
# 10
in impules turbine the pressure energy stored is converted
into kinetic energy at the inlet
where as in reaction turbine only apart of the pressure
energy is used
 
Is This Answer Correct ?    32 Yes 21 No
Sam Fernandes
 

 
 
 
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