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    I am confused what 5-5b and 5b-6 represent in the above TS diagram. I know that 1-2 is compression, 2-3 is cooling, 3-4 is compression and 4-5 is regeneration (since these are indicated in the block diagram) but as for 5-5b and 5b-6 it is less clear. I mean 5-6 is the combustion chamber but what is the significance of the 5-5b and 5b-6 segments? Why have they split it up like this? Also, why is the temperature at point 7 equal to that of point 5? How was this determined?
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    I think its a two stage combustion chamber in series in order to further increase the maximum temperature. 7 is equal to 5 because the high temperature/superheated steam is fed back into the regenerator (I forgot the exact term for this sorry).

    (Original post by DOD1_)


    I am confused what 5-5b and 5b-6 represent in the above TS diagram. I know that 1-2 is compression, 2-3 is cooling, 3-4 is compression and 4-5 is regeneration (since these are indicated in the block diagram) but as for 5-5b and 5b-6 it is less clear. I mean 5-6 is the combustion chamber but what is the significance of the 5-5b and 5b-6 segments? Why have they split it up like this? Also, why is the temperature at point 7 equal to that of point 5? How was this determined?
 
 
 

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