What is the temperature of the air leaving the combustion chamber of a CFM56-5C? I was wondering as I could only find out that the fuel burns at around 1500 Celsius but this can't be the same as the air temperature because the air/fuel ratio isn't 1:1.
In a jet engine using the Brayton cycle, number 4 is the station numbering of combustor exit/turbine nozzle guide vane leading edge, and T4 is the temperature at this station.
From this document (in French):
which is a thesis by Elodie Roux, this table on page 198:
tells us the T4 temperature is 1633 K, that is 1360 °C.