IC Engines

The following four $(4)$ problems apply to a four$-$stroke, six$-$cylinder spark ignition engine being modeled as an ideal Otto Cycle. The properties at the four state points in the cycle corresponding to the $\backslash ($ P$-$v $\backslash )$ diagram are shown below. The engine operates at $\backslash (\backslash$mathbf$\{3000\}\backslash$mathbf$\{$~ r p m$\}\backslash ).$ Furthermore, each cylinder contains $\backslash (\backslash$mathbf$\{0.0015\}\backslash$mathbf$\{$~ l b m$\}\backslash )$ of air.

Skill $48$: What is the total displaced volume, or swept volume $[$in$^3]$ of this engine?

a$)31$

b$)35$

c$)188$

d$)211$

Skill $49$: What is the specific compression work $[$Btu$/$lbm$]$ for one cylinder?

a$)93$

b$)130$

c$)181$

d$)314$