I need the answer as soon as possible An engineer claims he's created a second-class perpetual motion machineclass. He claims that if you use 30W on yourdevice, you can get 166W of power from airatmospheric at 300 K and 1 atm. The device isa cylinder of 30 cm radius and 1 m long.(a) Calculate the final temperature of the airleaving the device.b) proves that the device does not complywith the second law of thermodynamics

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Answered: (a) Calculate the final temperature of…

(a) Calculate the final temperature of the air leaving the device. b) proves that the device does not comply with the second law of thermodynamics

Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)

8th Edition

ISBN:9781305387102

Author:Kreith, Frank; Manglik, Raj M.

Publisher:Kreith, Frank; Manglik, Raj M.

Chapter7: Forced Convection Inside Tubes And Ducts

Section: Chapter Questions

Problem 7.16P

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Question

I need the answer as soon as possible

An engineer claims he's created a second-
class perpetual motion machine
class. He claims that if you use 30W on your
device, you can get 166W of power from air
atmospheric at 300 K and 1 atm. The device is
a cylinder of 30 cm radius and 1 m long.
(a) Calculate the final temperature of the air
leaving the device.
b) proves that the device does not comply
with the second law of thermodynamics

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