Answered: Explain totally and internally…

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Mechanical Engineering

Explain totally and internally reversible heat transfer processes.

Refrigeration and Air Conditioning Technology (MindTap Course List)

8th Edition

ISBN:9781305578296

Author:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Publisher:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Chapter44: Geothermal Heat Pumps

Section: Chapter Questions

Problem 1RQ: Geothermal heat pumps, or water-source heat pumps, are classified as either _____loop or _____loop...

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Concept explainers

Mechanisms of heat transfer

Heat transfer is an essential discipline in thermal engineering that deals with the transfer, conversion, usability, and creation of heat or thermal energy. Transfer of heat occurs through various mechanisms like conduction, convection, radiation, and change of phases. All these mechanisms have distinct characteristics, but these mechanisms can simultaneously occur in an identical system.

Question

Explain totally and internally reversible heat transfer processes.

Expert Solution

Step 1

Internally reversible heat transfer processes are the heat transfer processes in which there are no irreversibilities within the system. In an internally reversible process, the irreversibilities may be present in the surroundings generally due to the heat transfer through a finite temperature difference.

Externally reversible heat transfer processes are the heat transfer processes in which there are no irreversibilities outside the system i.e. in the surroundings. In an externally reversible process, the irreversibilities may be present within the system generally due to the heat transfer through an infinitesimal temperature difference.

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