Create a simple constant-volume model of the autoignition process and determine thetemperature and the fuel and product concentration histories. Also determine dP /dt as a function of time. Assume initial conditions corresponding to compression of a fuel–air mixturefrom 300 K and 1 atm to top-dead-center for a compression ratio of 10:1. The initial volumebefore compression is 3.68 ⋅ 10−4 m3, which corresponds to an engine with both a bore and astroke of 75 mm. Use ethane as fuel

Asingle-geared blanking press has a stroke of 200 mm and a rated capacity of 320 kn. a cam driven ram is assumed to be capable of delivering the full press load at constant force during the last 15 percent of a constant-velocity stroke. the camshaft has an average speed of 90 rev/min and is geared to the flywheel shaft at a 6: 1 ratio. the total work done is to include an allowance of 16 percent for friction a) estimate the maximum energy fluctuation b) find the rim weight for an effective diameter of 1.2 m and a coefficient of speed fluctuation of 0.10

Ariver flows from north to south at 8 km/h. a boat is to cross this river from west to east at a speed of 20 km/h (speed of the boat with respect to the earth/ground). at what angle (in degrees) must the boat be pointed upstream such that it will proceed directly across the river (hint: find the speed of the boat with respect to water/river)? a 288 b. 21.8 c. 326 d. 30.2

Burgers vector is generally parallel to the dislocation line. a)-true b)-false