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Question: a two spool gas turbine fitted with a free power...

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A two- spool gas turbine fitted with a free power turbine driving a load, the other spool is a typical gas generator. If the compressor pressure ratio is 2.7. The combustion chamber pressure loss is 3% of the compressor delivery pressure and exhaust pressure loss can be ignored. The turbine characteristics are given below Gas generator turbine Power turbine 25 50 65 0.85 0.86 0.85 1.50 1.70 1.85 65 90 100 1.60 tu bine Gas generator 5 -a The non-dimensional flows quoted are based on m° in kg/s, and P in bar and T in K. Calculate the gas generator turbine pressure ratio at this condition
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