A coal-fired power plant releases SO2 at a rate of 1500 g/s. The wind speed at the top of the stack is 4 m/s. Calculate the SO2 concentration at a point 4 km down wind and 0.2 km perpendicular to the plume centerline from the stack under overcast condition. Assuming the atmosphere stability is class D. Stack parameters: Atmosphere conditions: Height = 100.0 m Pressure = 95.0 kPa Diameter = 1.2 m Temperature = 25.0 oC Exit velocity = 8 m/s Temperature = 315 oC For class D stability, sy = ax0.894, a = 68; sz = cxd + f, c = 44.5, d = 0.516, f = -13

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

Determine whether or not it is possible to compress air adiabatically from k to 140 kpa and 400 k. what is the entropy change during this process?

Air is compressed isentropically from an initial state of 300 k and 101 kpa to a final temperature of 1000 k. determine the final pressure using the following approaches: (a) approximate analysis (using properties at the average temperature) (b) exact analysis