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Figure 6-38 is a sketch of a clean material recovery facility. The flow rates of the various materials streams are indicated by the numbers-all having units of tons/day.
a. What percent of steel entering the plant is recovered by the magnet?
b. What is purity of the paper produced by the air classifier?
c. What is the fraction of incoming MSW that ends up in the landfill?
d. Which of the unit operations is a polynary separator?
1. a go-kart including driver weighs 800 lbs. during an aggressive braking event the vehicle decelerates from 60
consider heat transfer to a turbulent boundary layer with no pressure gradient or transpiration but with a vanishingly
Using the ideal gas model with specific heat ratio, k = 1.4, and ignoring potential energy effects, determine (a) the exit velocity, in m/s, and (b) the rate of heat transfer, in kJ per kg of gas flowing through the nozzle.
a refrigerator with a coefficient of performance of 4.0 transfers heat from a cold region at -20 degrees c to a hot a
a layer of ice is placed on a flat hot surface with a constant temperature of 70 degc. the initial layer thickness is
Water is the working fluid in a regenerative Rankine cycle. Steam exits the first-stage turbine at 8 bar and its quality is 95%. 20% of that steam is extracted and diverted to an open feed water heater operating at 8 bar.
A particular motor has the following specifications: no load speed = 5000 rpm, stall torque = 200mN-m, no load current = 0.25 A, rated operating = 2500 rpm, 100mN-m, 5A. Create the speed-torque curve, torque-current curve, power-torque curve, and det..
Refrigerant R22 exits a heat exchanger through a 3 cm diameter tubing with a mass flow of 0.5 kg/s. The temperature and quality are -20 0C and 0.1. Determine the velocity of the refrigerant in m/s.
Air enters a gas turbine of an air-standard Brayton cycle at 1000 kPa, 1000 K, and expands to 100 kPa in two stages. The air is reheated between the stages at a constant pressure of 400 kPa to 1000 K. The compressor work input is given as 250 kJ/kg.
A hot upsetting of stainless steel 316/316L, 2000mm dia disc, 200mm thickness is upset at 1200 degree Celsius to 150mm thickness. what will be the Upsetting force required to forge this disc and what will be the yield stress at this temperature.
a rocket launched vertically upward is being monitored by a radar located at a distance 1.2 km from the launch pad. the
refrigerant-22 is condensed from 120degc 1.40 mpa to saturated liquid using air at 24degc 1.00 bar. the air absorbs
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