Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN: 9780190698614
Author: Sadiku, Matthew N. O.
Publisher: Oxford University Press
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A system consisting of a power cycle and a heat pump cycle, each operating between hot and cold reservoirs
whose temperature are 500 K and 300 K, respectively. All energy transfers are positive in the directions of the
arrows. The accompanying table provides two sets of steady-state
data, in kW. For each set of data, determine if the system is
operating in accord with the first and second laws of
thermodynamics.
Power cycle
QHQc W cycle
(a) 60 40 20
(b) 120 80 40
Heat pump cycle
QHQ'cW'cycle
60 20
80 20
80
100
Power cycle-
Hot reservoir, TH= 500 K
O'H
J
Qc
o'c
Cold reservoir, Te= 300 K
W cycle
Heat pump
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Transcribed Image Text:A system consisting of a power cycle and a heat pump cycle, each operating between hot and cold reservoirs whose temperature are 500 K and 300 K, respectively. All energy transfers are positive in the directions of the arrows. The accompanying table provides two sets of steady-state data, in kW. For each set of data, determine if the system is operating in accord with the first and second laws of thermodynamics. Power cycle QHQc W cycle (a) 60 40 20 (b) 120 80 40 Heat pump cycle QHQ'cW'cycle 60 20 80 20 80 100 Power cycle- Hot reservoir, TH= 500 K O'H J Qc o'c Cold reservoir, Te= 300 K W cycle Heat pump
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