Answered: Diffuser Compressor T, = 255.7 K…

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Diffuser Compressor T, = 255.7 K Aircraft P, = 54.05 kPa V = 250 m/s engine Рог Pol T02 To1

Refrigeration and Air Conditioning Technology (MindTap Course List)

8th Edition

ISBN:9781305578296

Author:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Publisher:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Chapter46: Room Air Conditioners

Section: Chapter Questions

Problem 15RQ

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Question

An aircraft is flying at a cruising speed of 250 m/s at an altitude of 5000 m where the atmospheric pressure is 54.05 kPa and the ambient air temperature is 255.7 K. The ambient air is first decelerated in a diffuser before it enters the compressor. Approximating both the diffuser and the compressor to be isentropic, determine (a) the stagnation pressure at the compressor inlet and (b) the required compressor work per unit mass if the stagnation pressure ratio of the compressor is 8.

Diffuser
Compressor
T, = 255.7 K
Aircraft
P, = 54.05 kPa
V = 250 m/s
engine
Рог
Pol
T02
To1

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