A constant pressure fuel-air cycle of a compression ratio of (18). The ambient conditions are (1.0 bar) and (27 °C). The engine is running on C,H₁, which burned with 120% theoretical of air, the residual gas fraction is (4%). If the pressure at the end of expansion stroke is 4.5 bar and the exhaust temperature is (1200 K), calculate the cut-off ratio and thermal efficiency of the cycle if the lower calorific value is (42000 kJ/kg). Assume Cp, for products is (1.135 kJ/kg.K) and (M₁ = 30), for reactants MR will be calculated from chemical equation.
A constant pressure fuel-air cycle of a compression ratio of (18). The ambient conditions are (1.0 bar) and (27 °C). The engine is running on C,H₁, which burned with 120% theoretical of air, the residual gas fraction is (4%). If the pressure at the end of expansion stroke is 4.5 bar and the exhaust temperature is (1200 K), calculate the cut-off ratio and thermal efficiency of the cycle if the lower calorific value is (42000 kJ/kg). Assume Cp, for products is (1.135 kJ/kg.K) and (M₁ = 30), for reactants MR will be calculated from chemical equation.
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 constant pressure fuel-air cycle of a compression ratio of (18). The ambient conditions are
(1.0 bar) and (27 °C). The engine is running on C,H₁, which burned with 120% theoretical of
air, the residual gas fraction is (4%). If the pressure at the end of expansion stroke is 4.5 bar
and the exhaust temperature is (1200 K), calculate the cut-off ratio and thermal efficiency of
the cycle if the lower calorific value is (42000 kJ/kg). Assume Cpp for products is (1.135
kJ/kg.K) and (M₁ = 30), for reactants MR will be calculated from chemical equation.
P₂
P4
P₁
Qin
Suction
V₂
3
V3
Exhaust
Isentropic
V₁
Qout](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fa7faa606-aa37-45b8-9d9c-4f86d256dd0f%2Fc8ac22af-ed72-4f71-a15a-40f646266f62%2Fps883q9_processed.jpeg&w=3840&q=75)
Transcribed Image Text:A constant pressure fuel-air cycle of a compression ratio of (18). The ambient conditions are
(1.0 bar) and (27 °C). The engine is running on C,H₁, which burned with 120% theoretical of
air, the residual gas fraction is (4%). If the pressure at the end of expansion stroke is 4.5 bar
and the exhaust temperature is (1200 K), calculate the cut-off ratio and thermal efficiency of
the cycle if the lower calorific value is (42000 kJ/kg). Assume Cpp for products is (1.135
kJ/kg.K) and (M₁ = 30), for reactants MR will be calculated from chemical equation.
P₂
P4
P₁
Qin
Suction
V₂
3
V3
Exhaust
Isentropic
V₁
Qout
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