Thermo 7e SM chap17 1
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Thermo 7e SM chap17 1
Solutions Manual forThermodynamics: An Engineering ApproachSeventh EditionYunus A. Cengel, Michael A. Boles McGraw-Hill, 2011Chapter 17 COMPRESSIBLE F Thermo 7e SM chap17 1 FLOWPROPRIETARY AND CONFIDENTIALTins Manual is the proprietary property of The McGraw-Hill Companies. Inc. (“McGraw-Hill”) and protected by copyright and other state and federal laws By opening and using this Manual the user agrees to the following restrictions, and if the recipient does not agree t Thermo 7e SM chap17 1 o these restrictions, the Manual should be promptly returned ruiopened to McGraw-Hill: This Manual is being provided only to authorized professors andThermo 7e SM chap17 1
instructors for use in preparing for the classes using the affiliated textbook. No other use or distribution of this Manual is permitted. This ManualSolutions Manual forThermodynamics: An Engineering ApproachSeventh EditionYunus A. Cengel, Michael A. Boles McGraw-Hill, 2011Chapter 17 COMPRESSIBLE F Thermo 7e SM chap17 1 tributed in any form or by any means, electronic or otherwise. without the prior written permission of McGraw-Hill.PRQPRLLIARY.MAĨLP’•'.... ■ ’■■■ ' ■ 'Ctet*8IK1 educsioreforcoursepttpMMion Ifyouarear This document 1S available free 0* charge on StUDOCU.comDownloaded by Pham (Xiang Huy (etxx*4youThermo 7e SM chap17 1
ery low. and thus the static and die stagnation temperatures aie practically identical.Discussion If the an stream were supersonic, however, the errorSolutions Manual forThermodynamics: An Engineering ApproachSeventh EditionYunus A. Cengel, Michael A. Boles McGraw-Hill, 2011Chapter 17 COMPRESSIBLE F Thermo 7e SM chap17 1 alyzing high-speed flows. It differs from the ordinal-) enthalpy by the kinetic energy termDiscussion Most of the tunc, we mean specific enthalpy. 1 c.. enthalpy per unit mass, when we use the term enthalpy.17-3C Dynamic temperature is the temperature rise of a fluid during a stagnation processDiscu Thermo 7e SM chap17 1 ssion When a gas decelerates from high speed to zero speed ar a stagnation point, the temperature of the gas rises.17-4C The temperature of the ail riThermo 7e SM chap17 1
ses as it approaches the nose because of the stagnation process.Discussion In the frame of reference moving with the aircraft, the afr decelerates froSolutions Manual forThermodynamics: An Engineering ApproachSeventh EditionYunus A. Cengel, Michael A. Boles McGraw-Hill, 2011Chapter 17 COMPRESSIBLE F Thermo 7e SM chap17 1 d the exit stagnation pressure of air flowing through a compressor are specified. The power input to die compressor is to be determined.Assumptions 1 The compressor is isentropic 2 Au- is an ideal gas.Properties The properties of ail at room temperature are c. = 1.005 kJ/kg-K and k = 1.4.Analysis Th Thermo 7e SM chap17 1 e exit stagnation temperature of air Tc,; is determined from x(t-t)/*,.(1.4-1). 1.4I '01 ■'‘From the energy balance on the compressor.trx = nKA20-/t01Thermo 7e SM chap17 1
)27°c01.< = mcfl(ro: -r0l) = (0.06 kg’sX 1.005 kJ kg KX562.4 - 300.2)K = 15.8 kWDiscussion Note that the stagnation properties can be Used convenientlSolutions Manual forThermodynamics: An Engineering ApproachSeventh EditionYunus A. Cengel, Michael A. Boles McGraw-Hill, 2011Chapter 17 COMPRESSIBLE F Thermo 7e SM chap17 1 coursepreparation If you arc a student using this Manual. you are using it without pettnissionDownloaded by Pham Quang Huy (etxx>*4yrni oniine@gmaii com)17-6 Air at 320 K is flowing in a duct. The temperature that a stationary probe inserted into the duct will read IS to be dctcmiincd for different Thermo 7e SM chap17 1 an velocities.Assumptions The stagnation process is isentropic.Properties rhe specific heal of ail al l oom temperature is C; = 1.005 kJ/kg-K.Solutions Manual forThermodynamics: An Engineering ApproachSeventh EditionYunus A. Cengel, Michael A. Boles McGraw-Hill, 2011Chapter 17 COMPRESSIBLE FSolutions Manual forThermodynamics: An Engineering ApproachSeventh EditionYunus A. Cengel, Michael A. Boles McGraw-Hill, 2011Chapter 17 COMPRESSIBLE FGọi ngay
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