Cessna 172 Skyhawk has a horizontally opposed engine that operates on a Diesel cycle with a compression ratio of 18:1. Using the air standard assumption, the following parameters are applied: P1 = 115 kPa, k = 1.35, mep = 815 kPa. Compute for the cutoff ratio.

Note: Make sure to indicate a CORRECT P-V and T-S diagram. Also, show the complete derivation of the working formula used to solve for the cut-off ratio.

Answer rating: 100% (QA)

Sol Given mean Effective mep compression Sati... View the full answer