A multi-stage axial flow compressor delivers a total pressure ratio of 5, the stagnation temperature at...
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A multi-stage axial flow compressor delivers a total pressure ratio of 5, the stagnation temperature at entry is 300 K and the overall isentropic efficiency is 80%. At mean diameter of each stage: the degree of reaction is 50%, the blade speed, U, is 278 m/s, the axial velocity, Ca, is 180 m/s, the absolute air velocity angle entering the rotor, a₁, is 200 and the work done factor, λ, is 0.9, determine (at " mean diameter); i. ii. iii. iv. V. the rotor blade inlet angle, B₁ the polytropic efficiency, np the number of stages required the static temperature of the air at entry to the rotor, T₁ the rotor inlet relative Mach number, Mirel Take Cp 1005 J/kg.K, gas constant = 287 J/kg.K and y= 1.4 (CO3-18 marks) A multi-stage axial flow compressor delivers a total pressure ratio of 5, the stagnation temperature at entry is 300 K and the overall isentropic efficiency is 80%. At mean diameter of each stage: the degree of reaction is 50%, the blade speed, U, is 278 m/s, the axial velocity, Ca, is 180 m/s, the absolute air velocity angle entering the rotor, a₁, is 200 and the work done factor, λ, is 0.9, determine (at " mean diameter); i. ii. iii. iv. V. the rotor blade inlet angle, B₁ the polytropic efficiency, np the number of stages required the static temperature of the air at entry to the rotor, T₁ the rotor inlet relative Mach number, Mirel Take Cp 1005 J/kg.K, gas constant = 287 J/kg.K and y= 1.4 (CO3-18 marks)
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Answer rating: 100% (QA)
To solve this problem well use the following equations and relations 1 Totaltototal efficiency etaT for each stage etaT fracHtactualHtisentropic fracTtactualTtentryTtisentropicTtentry UUisentropic 1sq... View the full answer
Related Book For
Fundamentals of Thermodynamics
ISBN: 978-0471152323
6th edition
Authors: Richard E. Sonntag, Claus Borgnakke, Gordon J. Van Wylen
Posted Date:
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