Question 43 At a science fair, an inventor suggests a hypothetical device that operates permanently and which is fed by a flow rate of 2 kg/s of Air at 400 kg/s kPa and 27 °C. At the outlet there are two distinct air vents that leave the device to the ambient pressure of 100 kPa and same mass flow. One of the outputs is at 57°C while the other output is at -3°C. The ambient temperature is 27 °C during the process. Assuming the device is well insulated, determine: a) The entropy generated on the device; b) Is this device possible?

Question 43 At a science fair, an inventor suggests a hypothetical device that operates permanently and which is fed by a flow rate of 2 kg/s of Air at 400 kg/s kPa and 27 °C. At the outlet there are two distinct air vents that leave the device to the ambient pressure of 100 kPa and same mass flow. One of the outputs is at 57°C while the other output is at -3°C. The ambient temperature is 27 °C during the process. Assuming the device is well insulated, determine: a) The entropy generated on the device; b) Is this device possible?

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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