5.1 As shown in the figure below, a reversible power cycle receives energy QH by heat transfer from a hot reservoir at TH and rejectsenergy Qc by heat transfer to a cold reservoir at Tc.Hot reservoirat THBoundary.RHCold reservoir cat TeWcycle(a) If TH=600 K and Tc = 400 K, what is the thermal efficiency?(b) If TH= 500°C, Tc = 20°C, and Wcycle = 200 kJ, what are QH and Qc, each in kJ?(c) If n = 70% and Tc = 40°F, what is TH, in °F?(d) If n = 40% and TH = 727°C, what is Tc, in °C?

Given data:- Reversible power cycle (Carnot engine)

As shown in the figure below, a reversible power cycle receives energy QH by heat transfer from a hot reservoir at TH and rejects energy Qc by heat transfer to a cold reservoir at Tc. Hot reservoir 2 at TH Boundary R (a) If TH=600 K and Tc = 400 K, what is the thermal efficiency? H Cold reservoir c at To Wcycle (b) If TH= 500°C, Tc = 20°C, and Wcycle = 200 kJ, what are QH and Qc, each in kJ? (c) If n = 70% and Tc= 40°F, what is TH, in °F? (d) If n = 40% and TH = 727°C, what is Tc, in °C?

As shown in the figure below, a reversible power cycle receives energy QH by heat transfer from a hot reservoir at TH and rejects energy Qc by heat transfer to a cold reservoir at Tc. Hot reservoir 2 at TH Boundary R (a) If TH=600 K and Tc = 400 K, what is the thermal efficiency? H Cold reservoir c at To Wcycle (b) If TH= 500°C, Tc = 20°C, and Wcycle = 200 kJ, what are QH and Qc, each in kJ? (c) If n = 70% and Tc= 40°F, what is TH, in °F? (d) If n = 40% and TH = 727°C, what is Tc, in °C?

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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Concept explainers

Work and Heat Transfer

It is generally related to thermal engineering which tells about the use, creation, conversion and transfer of heat energy between the systems. It is also considered that to transfer heat from one source to another, transfer of masses is also required. There are various mechanisms by which, transfer of heat takes place i.e. thermal conduction, convection, radiation or by change of phase. All these mechanisms have their own specific features which sometimes occur simultaneously within the same system.

Question

5.1

As shown in the figure below, a reversible power cycle receives energy QH by heat transfer from a hot reservoir at TH and rejects
energy Qc by heat transfer to a cold reservoir at Tc.
Hot reservoir
at TH
Boundary.
R
H
Cold reservoir c
at Te
Wcycle
(a) If TH=600 K and Tc = 400 K, what is the thermal efficiency?
(b) If TH= 500°C, Tc = 20°C, and Wcycle = 200 kJ, what are QH and Qc, each in kJ?
(c) If n = 70% and Tc = 40°F, what is TH, in °F?
(d) If n = 40% and TH = 727°C, what is Tc, in °C?

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