fundamentals Flashcards
what is potential energy
stored energy that is not being used. eg, a ball that is static at the top of a hill
what is kinetic energy
energy of an object that is moving. eg, a ball rolling down a hill
a mechanical device that converts chemical energy in a fuel into heat energy and then into mechanical energy is what?
a heat engine
whats the relationship between heat and temperature
temperature is what is felt/given off, heat is an energy
as heat increases, temperature also increases
3 ways heat is transferred
conduction, convection and radiation
how is power commonly measured
horsepower
what type of engine uses pistons and what cycle does it use?
a reciprocating engine, it uses otto cycle
how does a reciprocating engine create rotational movement
the up and down movement of the pistons is changed to rotational movement by the crank shafts
how does rotational movement propel the aircraft forward
rotors move the propeller and the propeller provides thrust
what engine cycle is both closed and intermittent (engine changes between open and closed)
otto cycle
what engine cycle is constantly open
brayton cycle
what are the 4 words what explain what an engine does to airflow
suck, squeeze, bang, blow
how is thrust produced?
compressed air is mixed with fuel, this produces and explosion that provides thrust
what are the 5 common section of a GTE
intake, compression, combustion, turbine blades, exhaust
