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Understand the Ten Difference between impulse and reaction turbine

Understand the Ten Difference between impulse and reaction turbine

Join us on an exciting journey into the realm of turbines. In this exploration, we’ll uncover the difference between impulse and reaction turbine, exploring their distinct mechanics and revealing the intriguing contrasts that distinguish them. Let’s get started!

Difference between impulse and reaction turbine

Impulse turbines and reaction turbines are the two main categories of turbines. They both convert kinetic energy into mechanical energy, but they differ fundamentally in some important ways. Ten distinctions between impulse and reaction turbines are listed below:

Working principle: The second law of motion, which states that force is equal to mass times acceleration, is the foundation upon which impulse turbines are based. Reaction turbines, on the other hand, operate according to Newton’s third law of motion, which states that there is an equal and opposite reaction to every action.

Nozzle: Fixed nozzles on impulse turbines direct high-pressure steam onto the turbine’s blades. On the other hand, reaction turbines have movable nozzles that modify the direction of the steam flow.

Impulse turbines have flat, half-moon-shaped blades that are used to generate electricity. Reaction turbines, in contrast, have curved blades that resemble an aeroplane wing.

Steam velocity: Steam velocity in an impulse turbine is high, whereas steam velocity in a reaction turbine is low.

Pressure drop: In a reaction turbine, the pressure drop happens gradually along the entire length of the blades, as opposed to an impulse turbine, where the pressure drop occurs entirely in the nozzle.

Operating speed: Reaction turbines run more slowly than impulse turbines do.

Efficiency: Due to their ability to utilise a greater portion of the steam energy, reaction turbines are typically more effective than impulse turbines.

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Fluid types: Reaction turbines are frequently used for liquids, while impulse turbines are frequently used for gases.

Size: Compared to reaction turbines, impulse turbines are lighter and smaller.

Cost: Due to their simpler design, impulse turbines are typically less expensive to construct and maintain than reaction turbines.

Impulse and reaction turbines have the same function, but they work on different philosophies and are very different in terms of efficiency and design. Selecting the right kind of turbine for a given application requires an understanding of these differences.

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