An engine operating on an ideal Diesel cycle has a cylinder volume when the piston is at bottom-dead-center (BDC), ?1 = 1 ????? = 0.001 ?3. The intake pressure and temperature are ?1 = 100 ??? and ?1 = 300 ?. The engine cycle contains the following processes: Adiabatic compression to ?1/25. Constant pressure heating to ?1/16. Adiabatic expansion to ?1. Constant volume heat rejection back to ?1, ?1. The gas in the cylinder has the following fixed values of the specific heats; ?? = 1004.0 ? ⁄?? ∙ ?, and ?? = 717 ? ⁄?? ∙ ?. Perform the following analysis: a. Calculate pressure, temperature, and volume at each state point and enter in a table like the one below, and make a sketch of the cycle on a P-V diagram. Label the cycle state points. b. What is the value of the cutoff ratio for this cycle, and the amount of heat added per cycle, ???? c. Find the net work produced per cycle, ????, the cycle efficiency, ???????, and how much power is produced by this one cylinder if used in a 4-stroke engine rotating at 2400 RPM?
An engine operating on an ideal Diesel cycle has a cylinder volume when the piston is at bottom-dead-center (BDC), ?1 = 1 ????? = 0.001 ?3. The intake pressure and temperature are ?1 = 100 ??? and ?1 = 300 ?. The engine cycle contains the following processes: Adiabatic compression to ?1/25. Constant pressure heating to ?1/16. Adiabatic expansion to ?1. Constant volume heat rejection back to ?1, ?1.
The gas in the cylinder has the following fixed values of the specific heats; ?? = 1004.0 ? ⁄?? ∙ ?, and ?? = 717 ? ⁄?? ∙ ?. Perform the following analysis:
a. Calculate pressure, temperature, and volume at each state point and enter in a table like the one below, and make a sketch of the cycle on a P-V diagram. Label the cycle state points.
b. What is the value of the cutoff ratio for this cycle, and the amount of heat added per cycle, ????
c. Find the net work produced per cycle, ????, the cycle efficiency, ???????, and how much power is produced by this one cylinder if used in a 4-stroke engine rotating at 2400 RPM?
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