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Air at a stagnation state of 300 kPa and 350 K flows through a convergent nozzle of exit diameter 15 mm, into a constant area frictionless duct of the same diameter as that of the nozzle exit. Heat is transferred to the duct at a rate of 175 kJ.kg1 of air. Determine (a) the maximum mass flow rate through the duct and (b) the range of back pressure for which the mass flow rate is maximum.

Air at a stagnation state of 300 kPa and 350 K flows through a convergent nozzle of exit diameter 15 mm, into a constant area frictionless duct of the same diameter as that of the nozzle exit. Heat is transferred to the duct at a rate of 175 kJ.kg1 of air. Determine (a) the maximum mass flow rate through the duct and (b) the range of back pressure for which the mass flow rate is maximum.

Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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Air at a stagnation state of 300 kPa and 350 K flows through a convergent nozzle of exit diameter 15 mm, into a constant area frictionless duct of the same diameter as that of the nozzle exit. Heat is transferred to the duct at a rate of 175 kJ.kg1 of air. Determine (a) the maximum mass flow rate through the duct and (b) the range of back pressure for which the mass flow rate is maximum.
Transcribed Image Text:Air at a stagnation state of 300 kPa and 350 K flows through a convergent nozzle of exit diameter 15 mm, into a constant area frictionless duct of the same diameter as that of the nozzle exit. Heat is transferred to the duct at a rate of 175 kJ.kg1 of air. Determine (a) the maximum mass flow rate through the duct and (b) the range of back pressure for which the mass flow rate is maximum.
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