Air enters a constant-area duct at p1 = 90 kPa, V1 = 520 m/s, and T1 =

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Air enters a constant-area duct at p1 = 90 kPa, V1 = 520 m/s, and T1 = 558°C. It is then cooled with negligible friction until it exists at p2 = 160 kPa. Estimate
(a) V2;
(b) T2; and
(c) The total amount of cooling in kJ/kg.

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Thermodynamics An Engineering Approach

ISBN: 978-0073398174

8th edition

Authors: Yunus A. Cengel, Michael A. Boles

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Question Posted: Jan 20, 2010 02:36 AM

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Air enters a constant-area duct at p1 = 90 kPa, V1 = 520 m/s, and T1 =

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Thermodynamics An Engineering Approach

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