- #1
Seth.T
- 25
- 2
how much heat roughly does commercial aircraft APU produce? I'm interested in an average and maximum range. Any experts?
APU EGT Operating GTCP85-98 and 98C 98CK
Maximum 760 °C 710 °C
Continuous 710 °C 663 °C
The heat in a commercial aircraft APU is produced through the combustion of fuel. The APU, or auxiliary power unit, is a small jet engine located at the rear of the aircraft, and it uses fuel to create the necessary power to run the aircraft's systems while on the ground.
The amount of heat produced by a commercial aircraft APU can vary depending on the type of aircraft and the APU's power rating. On average, an APU can produce anywhere from 40,000 to 100,000 BTUs (British Thermal Units) per hour.
The heat output of a commercial aircraft APU is significantly lower than that of the main engines. While the main engines can produce tens of thousands of horsepower, the APU is only responsible for providing power to the aircraft's systems and does not contribute to propulsion.
The heat from the APU is managed through a system of air flow and cooling. The APU has its own dedicated air intake and exhaust, and the air is cooled through a heat exchanger before being released into the environment. The APU also has built-in sensors to monitor its temperature and will automatically shut down if it reaches a dangerous level.
The APU heat is typically not a significant factor in the overall temperature inside the aircraft. The air conditioning system, which is separate from the APU, is responsible for maintaining a comfortable temperature for passengers and crew. However, in extreme temperatures or if the APU is not functioning properly, it can contribute to the overall temperature inside the aircraft.