Only part D & E please SL-4 A reversible refrigerator is driven by a (non-reversible) heat engine with e-0.250. Both operate betweentwo heat reservoirs at 300K and 450K. The power output of the engine is 5,000W, which is the entirepower input to the refrigerator.a) Write down or calculate the magnitudes of the Wk, Qhe and Q. for one second of operation of theb) Write down or calculate the magnitudes of the Wk, Qn, and Q. for one second of operation of therefrigerator.c) Calculate the magnitudes of the Wkest, Qhnet, and Qenet for one second of operation of the system.d) Show on a diagram like the one above for problem SL-1 the energy flow for the engine and refrigeratorindividually on the left and the net energy flow for the engine-refrigerator system on the right.e) Does this net result violate the second law of thermodynamics? EXPLAIN your answes.2.

Answered: SL-4 A reversible refrigerator is…

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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Only part D & E please

SL-4 A reversible refrigerator is driven by a (non-reversible) heat engine with e-0.250. Both operate between
two heat reservoirs at 300K and 450K. The power output of the engine is 5,000W, which is the entire
power input to the refrigerator.
a) Write down or calculate the magnitudes of the Wk, Qhe and Q. for one second of operation of the
b) Write down or calculate the magnitudes of the Wk, Qn, and Q. for one second of operation of the
refrigerator.
c) Calculate the magnitudes of the Wkest, Qhnet, and Qenet for one second of operation of the system.
d) Show on a diagram like the one above for problem SL-1 the energy flow for the engine and refrigerator
individually on the left and the net energy flow for the engine-refrigerator system on the right.
e) Does this net result violate the second law of thermodynamics? EXPLAIN your answes.
2.

Expert Solution

Step 1: Introduction

A reversible heat engine is a work producing device which is based on Carnot's cycle and its efficiency is similar to that of Carnot's engine. Its all processes are reversible in nature, thus is called a reversible engine. It receives energy from a source and gives energy to a sink and produces a net work.

A refrigerator is a work absorbing device whose sole purpose is to transfer heat from a reservoir at a lower temperature to a reservoir at a higher temperature. A reversible refrigerator is a device based on reversed Carnot's cycle and all the processes are reversible in nature.

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