driving the stirrer is 840 rpm. determine the torque in the shaft and the power output of the motor.
ans. 0.08mN, 6.92W
3.12 at the beginning of the compression stroke of a two-cylinder internal combustion engine the air is at a pressure of 101.325 kPa. compression reduces the volume to 1/5 of its original volume, and the law of compression is given by pv= constant. if the bore and stroke of each cylinder is 0.15 m and 0.25 m, respectively, determine the power absorbed in kw by compression strokes when the engine speed is such that each cylinder undergoes 500 compression strokes per minute.
3.13 determine the total work done by a gas system following an expansion process as shown in fig. p. 3.13.