Consider a heat engine cycle consisting of iso The initial state of the diatomic ideal gas in t 170 kPa at volume 0.015 m³. The isochoric he expansion and isobaric contraction completing Hint

Elements Of Electromagnetics
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Consider a heat engine cycle consisting of isochoric heating, adiabatic expansion, and isobaric contraction.
The initial state of the diatomic ideal gas in the engine just prior to isochoric heating is at a pressure of
170 kPa at volume 0.015 m³. The isochoric heating increases the pressure to 780 kPa, with the adiabatic
expansion and isobaric contraction completing the cycle. Answer below questions.
Hint
a. What is the heat input (QH) over one cycle of the heat engine?
QH
kJ
b. What is the net work done by the engine?
W₁
kJ
net
c. What is the waste heat (QL) over one cycle of the heat engine?
QL
kJ
d. Efficiency of a heat engine is defined as
e
Wnet
QH
What is the efficiency e of this heat engine?
Transcribed Image Text:Consider a heat engine cycle consisting of isochoric heating, adiabatic expansion, and isobaric contraction. The initial state of the diatomic ideal gas in the engine just prior to isochoric heating is at a pressure of 170 kPa at volume 0.015 m³. The isochoric heating increases the pressure to 780 kPa, with the adiabatic expansion and isobaric contraction completing the cycle. Answer below questions. Hint a. What is the heat input (QH) over one cycle of the heat engine? QH kJ b. What is the net work done by the engine? W₁ kJ net c. What is the waste heat (QL) over one cycle of the heat engine? QL kJ d. Efficiency of a heat engine is defined as e Wnet QH What is the efficiency e of this heat engine?
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