Turbine Engines and Energy Principles

These flashcards cover key concepts and calculations related to turbine engines and energy principles discussed in the lecture notes.

What are the two main classifications of energy?

Potential energy and kinetic energy.

What is potential energy?

Energy that is stored or at rest, which can be due to position, distortion, or chemical action.

How do you calculate potential energy due to position?

Potential Energy (PE) = Weight x Height.

What is an example of potential energy in aviation?

Water in an elevated reservoir or an airplane raised off the ground.

What is kinetic energy?

Energy in motion, such as an airplane rolling down the runway.

How is kinetic energy calculated?

Kinetic Energy (KE) = 0.5 x Mass x Velocity².

What does Newton's first law of motion state?

Objects at rest remain at rest and objects in motion remain in motion unless acted upon by an external force.

What is the formula for calculating thrust derived from Newton's second law?

Force (F) = Mass x Acceleration.

What does Bernoulli's principle explain?

The static pressure of a fluid decreases where the velocity of the fluid increases, assuming no energy is added or taken away.

What are Boyle's and Charles' laws related to?

Boyle's Law deals with gas pressure and volume at constant temperature, while Charles' Law relates gas volume and temperature at constant pressure.

What is the definition of work in a mechanical context?

Work is done when a force overcomes resistance and causes movement through a distance.

How do you calculate power?

Power = Work / Time.

What is the relationship between horsepower and foot-pounds?

One horsepower is equal to 550 foot pounds per second.

What is torque?

Torque is the measure of twisting force that causes rotation.

How is work calculated mathematically?

Work = Force x Distance.

What is an example of a force in aviation?

The thrust produced by a turbine engine.