A diesel engine has air before compression at 280 K, 85 kPa. The highest temperature is 2200 K and the highest pressure is 6 MPa. Find the volumetric compression ratio and the mean effective pressure using cold air properties at 300 K. The Diesel CycleIdeal Gas Model, constant specific heatsCR=STATE POINTS1 - Compression In2 - Combustion Begins3 - Expansion Begins4 - Expansion Ends5 - Compression InPROCESSESCompressionCombustionPower StrokeHeat RejectionEta =P [kPa]Uin [kJ/kg]T [°C]T[K]Uout [kJ/kg] Q [kJ/kg]Sums =0.0RR =C₁ =Cpgamma=v [m³/kg] s [kJ/kg-K] u [kJ/kg]W [kJ/kg]0.287 [kJ/kg-K]0.717 [kJ/kg-K]1.004 [kJ/kg-K]1.4000.0

To find:Find the value of volumetric compression ratio and the mean effective pressure.

Answered: A diesel engine has air before…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

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A diesel engine has air before compression at 280 K, 85 kPa. The highest temperature is 2200 K and the highest pressure is 6 MPa. Find the volumetric compression ratio and the mean effective pressure using cold air properties at 300 K.

Diesel Cycle
Ideal Gas Model, constant specific heats
CR=
STATE POINTS
1 - Compression In
2 - Combustion Begins
3 - Expansion Begins
4 - Expansion Ends
5 - Compression In
PROCESSES
Compression
Combustion
Power Stroke
Heat Rejection
Eta =
P [kPa]
Uin [kJ/kg]
T [°C]
T[K]
Uout [kJ/kg] Q [kJ/kg]
Sums =
0.0
RR =
C₁ =
Cp
gamma=
v [m³/kg] s [kJ/kg-K] u [kJ/kg]
W [kJ/kg]
0.287 [kJ/kg-K]
0.717 [kJ/kg-K]
1.004 [kJ/kg-K]
1.400
0.0

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