A device collects energy from the sun's rays and produces a high temperature of 95 °C. A small heat engine then uses this as a high temperature reservoir and operates at an ambient temperature of 15 °C. What is the maximum possible thermal efficiency of this heat engine? After some improvements are made to the solar energy collector, the high temperature it produces is now Tnew. If it is given that the new maximum possible thermal efficiency of the heat engine is double the previous one, what is Tnew? (Assume that the ambient temperature stays the same)

A device collects energy from the sun's rays and produces a high temperature of 95 °C. A small heat engine then uses this as a high temperature reservoir and operates at an ambient temperature of 15 °C. What is the maximum possible thermal efficiency of this heat engine? After some improvements are made to the solar energy collector, the high temperature it produces is now Tnew. If it is given that the new maximum possible thermal efficiency of the heat engine is double the previous one, what is Tnew? (Assume that the ambient temperature stays the same)

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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Question

A device collects energy from the sun's rays and produces a high temperature of 95 °C. A small heat
engine then uses this as a high temperature reservoir and operates at an ambient temperature of 15 °C.
What is the maximum possible thermal efficiency of this heat engine?
After some improvements are made to the solar energy collector, the high temperature it produces is
now Tnew. If it is given that the new maximum possible thermal efficiency of the heat engine is double
the previous one, what is Tnew? (Assume that the ambient temperature stays the same)

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