3. A four-cylinder 2.5-liter, SI automobile engine operates at WOT (wide-open throttle) on a four- stroke air-standard Otto cycle at 3000 rpm. The engine has a compression ratio of 8.6:1, a mechanical efficiency of 86%, and a stroke-to-bore ratio L/B = 1.025. Fuel is iso-octane with A/F = 15, a heating value of 44,300 kJ/kg, and a combustion efficiency of 100%. At the start of the compression stroke, conditions in the cylinder combustion chamber are 100 kPa and 60C. It can be assumed that there is 4% exhaust residual left over from the previous cycle and that the specific heat ratio (k) is 1.35. Find net indicated work, indicated thermal efficiency, indicated power, brake power, torque, friction power, brake mean effective pressure, brake specific fuel consumption, and volumetric efficiency.