- #1

falik

- 6

- 0

## Homework Statement

A 4 stroke, single cylinder engine working on constant volume cycle, developes 7.5 KW brake power at 60 rev/sec the mechanical efficiency being 80%. The pressure at the beginning of compression is 0.97 bar, the engine has a volumetric compression ratio of 7 and the maximum pressure reached in the cycle is 34 bar. If both compression and expansion is according to the law PV= costant where n=1.38, calculate Indicate Mean Effective Pressure ?

## Homework Equations

indicated power = Pm x Lx A x N

## The Attempt at a Solution

well i have tried different methods, but could`nt solve it, if anyone can help me with that ? i`ll b really gratefull. thanks.