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Reaction turbines are generally more efficient than impulse turbines because they convert both the kinetic and pressure energy of the fluid into mechanical energy. In a reaction turbine, the water flows through the blades, creating lift and allowing for continuous energy transfer as the fluid expands and loses pressure. In contrast, impulse turbines rely solely on the momentum of the water jets, leading to energy losses during the conversion process. Additionally, reaction turbines can operate effectively across a wider range of flow conditions, optimizing their performance.
What else can I help you with?
What is steam velocity in turbine?
That is how fast the steam is actually moving in the turbine. For impulse turbines it is twice as fast as the turbine blades. In reaction turbines it is the same speed as the blades. Because the blades of a turbine cannot move faster than 4500 feet per second without self destructing as it overcomes the centripetal force of the turbine wheels, the steam turbine is designed such that no turbine will exceed more than ~1150 feet per second on its tip speed. Thus the steam velocity through the turbine will be less than ~1150 fps for a reaction turbine and less than ~2300 fps for an impulse turbine, or about ~1570 mph, more than twice the speed of sound.
Why pressure drop does not occur in impulse turbine?
In an impulse turbine, pressure drop does not occur because the working fluid (usually steam or water) expands through nozzles that convert its thermal energy into kinetic energy before it strikes the turbine blades. The high-velocity jet generated by this process imparts momentum to the blades, causing them to rotate without a significant change in pressure. As a result, the pressure remains relatively constant, and energy transfer occurs primarily through the conversion of kinetic energy rather than through pressure differentials.
What is the difference between Bucket and Vanes?
Bucket is having an angle of deflection of a jet more than 90 degree where as vane is having less than 90 degree. Bucket can generate an IMPULSE FORCE only whereas vane can generate both IMPULSE and REACTION FORCE both. by PRIYANSHU SRIVASTAVA MECHANICAL ENGINEER
Is the impulse produced by a larger force always greater than the impulse created by a smaller force?
I believe the answer is no. The impulse produced is also time related. Impulse force is measured as dp/dt. Therefore a smaller force produced for a very quick time could produce a larger impulse than a large force over a longer time.
What is a wave turbine?
Horizontal axis wind turbines, modern wind turbines, vertical axis turbines.
How do you make sentence for word impulse?
Impulse often spurs inventions. Impulse is often caused by heightened desire. Impulse often catalyzes action. An impulse should be only be acted upon as a last resort. Impulse often creates unanticipated problems. Impulse can be beneficial or dangerous. His conclusions were driven by impulse rather than logical. Impulse is often associated with heightened desire. Impulse often brings about needed actions.
What is the effect on a steam turbine if the system is running in under frequency?
It results in reduced ventilation and affect the turbine more than the generator.
Is the velocity of a nerve impulse greater than electrical conduction's?
yes
What is turbine windage protection?
when steam flow blockage occured in steam turbine due to damage of blades/nozzles than steam temperature will increase so protect the turbine from high temperature this protection is introduced.
Why deaerator is placed at a higher level than turbine?
Your question is very Bad should you know the dearator in water cycle and turbine in steam cycle
What makes a wind turbine work other than wind?
lolol
What is the difference in transmission between myelinated and unmyelinated fibers?
Impulse transmission on an unmyelinated nerve fiber is much slower than the impulse transmission on a myelinated nerve fiber.
