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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.

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    $\begingroup$ The air temperature will tend to reach the same temperature as the fire, and can easily be more than 1500 C. $\endgroup$ – fooot Jan 11 '17 at 16:17
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    $\begingroup$ What comes out of the combustor is a lot more than 'air', it consists of combustion products plus some unused oxygen and fuel, and nitrogen that didn't oxidize in the process. Its temperature should be mainly dependent on the flame temperature, minus whatever was lost on the (very short) way out. $\endgroup$ – Rob Vermeulen Jan 11 '17 at 18:25
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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.

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(Source)

From this document (in French):

which is a thesis by Elodie Roux, this table on page 198:

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tells us the T4 temperature is 1633 K, that is 1360 °C.

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    $\begingroup$ how did you find that, I also saw you found the plane with folding wings, how do you search these things so fast and accurately. I honestly think your advise could help the rest of my life! @mins $\endgroup$ – SRawes Jan 12 '17 at 0:05
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    $\begingroup$ @SRawes It takes many years and great dedication, grasshopper, to learn the ancient art of Google-fu. Few have the fortitude to attain the level of skill of Master mins. We are all... his humble disciples. [bows low, gong sounds] $\endgroup$ – TomMcW Jan 12 '17 at 0:19
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    $\begingroup$ I shall dedicate my life to the art of Google fu and train it to work for my whim! @TomMcW $\endgroup$ – SRawes Jan 12 '17 at 1:04
  • $\begingroup$ I'm still in awe and seriously want to know how @mins $\endgroup$ – SRawes Jan 12 '17 at 1:06

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