Auxiliary Power Unit Aircraft Function

Apu is the smallest engine on airplanes.

Auxiliary power unit aircraft function.

Design of auxiliary power unit apu for co operation with turboshaft engine p 9 the section that comes below presents types of aircraft engines. The auxiliary power unit apu is a small gas turbine engine mounted in the tail cone of an aircraft to provide autonomous electrical and mechanical power for the following. An mt is a mechanism that uses the flow of a gas to convert thermal energy into mechanical energy. Shaft power for other pneumatic and hydraulic systems.

2 3 6 the combustible usually gas is mixed in the combustion chamber with air. Knowing this will be an explanation of auxiliary power units apu and how they are involved in the operation of an aircraft. Auxiliary power units are usually found on large aircraft and naval ships as well as some large land vehicles. An auxiliary power unit apu is a device on a vehicle that provides energy for functions other than propulsion they are commonly found on large aircraft and naval ships as well as some large land vehicles.

Apu is necessary to start up the main engines it also powers the airplane s electronics. Aircraft apus generally produce 115 v alternating current ac at 400 hz rather than 50 60 hz in mains supply to run the electrical systems of the aircraft. Apu generators provide auxiliary electrical power for running aircraft systems on the ground when the main engines aren t running and no ground electrical power is available. An auxiliary power unit also known as apu is a device on a vehicle that provides energy for functions other than propulsion.

In airliners apu s are usually located at the very rear of the aircraft below the tail. Starting power for the main engines. Please like and subscribe. How an auxiliary power unit works.

Others can produce 28 v. An auxiliary power unit or apu allows an aircraft to operate autonomously without reliance on ground support equipment such as a ground power unit an external air conditioning unit or a high pressure air start cart.