It is proposed to have carbon dioxide (CO2) gas pass through an uninsulated nozzle. The CO2 is to enter at 253 K, 400 kPa, at a velocity of 9 m/s. The CO2 is to exit the nozzle at 468 K, 105 kPa, and a velocity of 146 m/s. The mass flow rate of the CO2 is 0.33 kg/s. The nozzle surface is maintained at 393 K. From the data give the heat trasfer rate dtermined is____ k..... to 2 d.p.Use cold-air standard analysis and Take R= 0.1889 kJ/kgK and Cp=0.846 kJ/kgK

In first case assume constant Cp value. In 2nd case assume variable Cp value .

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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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It is proposed to have carbon dioxide (CO₂) gas pass through an uninsulated nozzle. The CO₂ is to enter at 253 K, 400 kPa, at a velocity of 9 m/s. The CO₂ is to exit the nozzle at 468 K, 105 kPa, and a velocity of 146 m/s. The mass flow rate of the CO₂ is 0.33 kg/s. The nozzle surface is maintained at 393 K.

From the data give the heat trasfer rate dtermined is____ k..... to 2 d.p.

Use cold-air standard analysis and Take R= 0.1889 kJ/kgK and Cp=0.846 kJ/kgK

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