You have been asked to design a steady state treatment device similar to a continuously mixed reactor to treat toluene in an aqueous waste stream. The flow into the system is 1 m3/hr and the toluene concentration is 10 ppm. The system utilizes a particular type of bacteria that can consume toluene following a first order reaction. The rate constant is 0.1 day-1. If the reactor must treat to an effluent concentration of 1 ppm, how big should it be (Volume)?

What difference(s) did you notice using a pneumatic circuit over hydraulic circuit.explain why the pneumatic piston stumbles when it hits an obstacle.

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

Which of the following ziegler nichols tuning methods the response of the controller to a step input should exhibit an s-shaped curve? a)-open loop mode b)-closed loop mode c)-both modes (open & closed) d)-none of the modes (open & closed)