Total Energy At Nozzle Exit For a GE9X Engine Calculator

The GE9X engine is a high-bypass turbofan jet engine developed by General Electric for use on large commercial aircraft, specifically the Boeing 777X. In the context of a turbofan engine like the GE9X, the term “nozzle exit” refers to the point where the high-speed exhaust gases exit the engine’s jet nozzle. The total energy at the nozzle exit can be expressed as the sum of the enthalpy and kinetic energy of the exhaust gases.

The total energy ($E$) at the nozzle exit can be expressed as:

where,

• E is the Total Energy, i.e sum of kinetic and potential energy
• $h$ is the static enthalpy at the nozzle exit,
• $V$ is the velocity of the exhaust gases relative to the reference frame of the exhaust gases