"Cummins Diesel Example - See Figure 1-20 on page 33"

"Paste this into EES and try a solve"

V = 10
V_d = V*Convert(L,m^3)
B = 0.125
L = 0.136
n_cyl = 6
n_R = 2
V_t = n_cyl * pi * B^2 / 4 * L
N = 2100/60
P = 246
P_hp = P * convert(kW,hp)

"Mean Piston Speed"

Sp = 2*L*N

"bmep"

bmep = P*n_R / ( V_d * N)

"Specific Power"

A_p = n_cyl * pi * B^2 / 4
specific_P = P/A_p