Problem 13.20 - Problem 13.20 Given: Air flow in a...

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Problem 13.20 [Difficulty: 2] Given: Air flow in a converging nozzle Find: Mass flow rate Solution: Basic equations: m rate ρ V A p ρ R T T 0 T 1 k1 2 M 2 p 0 p 1 2 M 2 k Given or available data p b 35 psi p 0 60 psi T 0 200 460 () R D t 4in k 1.4 R air 53.33 ft lbf lbm R A t π 4 D t 2 A t 0.0873 ft 2 Since p b p 0 0.583 is greater than 0.528, the nozzle is not choked and p t p b Hence M t 2 p 0 p t k 1
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This note was uploaded on 01/20/2012 for the course EGN 3353C taught by Professor Lear during the Fall '07 term at University of Florida.

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