High-Pressure Turbine - efficiency

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Increasing the pressure ratio in a High-Pressure Turbine within a gas engine leads to higher exhaust gas temperatures due to the thermodynamic principles governing gas expansion and heat transfer. Higher pressure ratios result in more heat being added per kilogram of gas, enhancing overall efficiency. The discussion also touches on the confusion regarding whether this principle applies to turbochargers in piston engines or to compressor-burner-turbine configurations. Participants seek clarification and references for further reading on these thermodynamic effects. Understanding these relationships is crucial for optimizing turbine performance in gas engines.
Kajan thana
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Hi Guys,

Why increasing the pressure ratio in a High-Pressure Turbine ( in a Gas Engine) , will increase the temperature of exhaust gas?
Why is the amount of heat added per kg of the gas is higher?
Is there any good material where I can read about this?
Thank you in advance..
 
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Kajan thana said:
increasing the pressure ratio in a High-Pressure Turbine ( in a Gas Engine) , will increase the temperature of exhaust gas?
Could you include a reference for that?
 
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Keith_McClary said:
Could you include a reference for that?
Sorry Keith, I think I found out, correct me if I am wrong ( I didn't get it from any source). When increasing the pressure ratio in a High-Turbine pressure will decrease the temperature of the exhaust. and an increase in pressure means that more heat is added per kg of the gas.
 
Are you talking about a turbocharger for a piston engine?
 
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Keith_McClary said:
Are you talking about a turbocharger for a piston engine?
This is for a compressor-burner-turbine heat engine
 
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