Introduction to Mechanical Engineering: Pump And Turbine

Flashcards covering key concepts related to turbomachines and pumps as discussed in mechanical engineering.

Turbo machine

A device where energy transfer occurs between a flowing fluid and rotating element, resulting in changes in pressure and momentum.

Turbomachine

A type of machinery involving blades and flow passages arranged around a rotor, including turbines and compressors.

Impulse turbine

A type of turbine where steam expands in nozzles without altering pressure as it moves over the blades.

Reaction turbine

A type of turbine where steam continuously expands across the blades, causing a drop in pressure during expansion.

Centrifugal pump

A dynamic pump that uses centrifugal force to move fluids, converting mechanical energy into hydraulic energy.

Positive displacement pump

A pump that traps a fixed volume of fluid and mechanically forces it out into the discharge pipe regardless of pressure changes.

Cavitation

The formation of vapor bubbles in a liquid due to pressure drops, which can collapse and cause damage to the pump.

Stator vane

Fixed blades that direct steam onto the rotor, forming a jet to facilitate energy transfer.

Impeller

A rotor component in pumps that accelerates fluid outward, increasing its velocity and creating pressure.

Priming

The process of filling the pump casing with liquid before starting to ensure proper operation.