What do you observe from the plot below Pi intake pressure

What do you observe from the plot below? (Pi : intake pressure, Pe : exhuast pressure, rc : compression ratio)

100 lsupercharged throttled I E 60 E 40 o 20 0 r\' = 10 r=15 0.5 1.5 P/P 1 e

Solution

solution

from above plot we can observe that

- as compression ratio increase, volumatric effeciency is also increase with increasing pressure ratio.

- In throttle region, rate of increase effects on compression ratio and In supercharged region, rate of increase does not effects on compression ratio.