You are working in the compressor design department of a large compressor manufacturer. As the new junior engineer you have been assigned to a large project and you are responsible to do preliminary thermos-fluids design of a centrifugal air compressor that can supply (266)kg/min of air at a final delivery total pressure of 312kPa. The project manager has advised you to assume the ambient air conditions as 101.55 kPa and 26 degrees Celsius. Further you have been given boundary conditions to help you with compressor design. You must assume that the compressor runs at 19925rpm with isentropic efficiency of 90%. Also assume the is no pre-whirl at the inlet and the inlet hub diameter is 13.4cm and the air enters the impeller eye with a velocity of 158 m/s. Assume the ration of Vw2/U2 (whirl speed to tip speed is (0.804) 1. stagnation temperature in degrees clelcius and the total pressure at the inlet kPa of the compressor 2. stagnation temperature in degrees celcius at the end of compression if the change in kinetic energy is negligible , assume the compression is isentropic 3. actual stagnation temperature in degrees celcius at the end of compression assuming change in kinetic energgy is negligible. how much is the stagnation temperature after the diffuser ? 4. power consumed by the compressor in kW 5. Centrifugal compressor eye diameter in m
You are working in the compressor design department of a large compressor manufacturer. As the new junior engineer you have been assigned to a large project and you are responsible to do preliminary thermos-fluids design of a centrifugal air compressor that can supply (266)kg/min of air at a final delivery total pressure of 312kPa. The project manager has advised you to assume the ambient air conditions as 101.55 kPa and 26 degrees Celsius.
Further you have been given boundary conditions to help you with compressor design. You must assume that the compressor runs at 19925rpm with isentropic efficiency of 90%. Also assume the is no pre-whirl at the inlet and the inlet hub diameter is 13.4cm and the air enters the impeller eye with a velocity of 158 m/s. Assume the ration of Vw2/U2 (whirl speed to tip speed is (0.804)
1. stagnation temperature in degrees clelcius and the total pressure at the inlet kPa of the compressor
2. stagnation temperature in degrees celcius at the end of compression if the change in kinetic energy is negligible , assume the compression is isentropic
3. actual stagnation temperature in degrees celcius at the end of compression assuming change in kinetic energgy is negligible. how much is the stagnation temperature after the diffuser ?
4. power consumed by the compressor in kW
5. Centrifugal compressor eye diameter in m
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