Two engines have cylinders that are geometrically the same in size and shape. The cylinders of engine A are surrounded with a normal water jacket filled with a water–ethylene glycol solution. The...

Two engines have cylinders that are geometrically the same in size and shape. The cylinders of engine A are surrounded with a normal water jacket filled with a water–ethylene glycol solution. The cylinders of engine B are insulated, making this an adiabatic engine. Other than temperatures, the engines are operated with the same steady-state conditions (as much as possible).

(a) Which engine has higher volumetric efficiency? Why?

(b) Which engine has higher thermal efficiency? Why?

(c) Which engine has hotter exhaust? Why?

(d) Which engine would be more difficult to lubricate? Why?

(e) Which engine would be a better SI engine? Why?