The values of constants in Eq. (10.112) is given as a1 ¼ 0.0438, a2 ¼ 2.6 106 , a3 ¼ 0.0112, a4 ¼ 1.5 105 , and a5 ¼ 1.04. Calculate the ϕ for engine operated at 1500 rpm at two different engine load...

The values of constants in Eq. (10.112) is given as a1 ¼ 0.0438,

a2 ¼ 2.6 106

, a3 ¼ 0.0112, a4 ¼ 1.5 105

, and a5 ¼ 1.04. Calculate

the ϕ for engine operated at 1500 rpm at two different engine load conditions.

The cylinder pressure at two load conditions is presented in Fig. P10.2, and

intake manifold pressure can be assumed to be 0.92 bar. Clearly state your

assumptions, if any.