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8. A separation unit has two input and two output streams; the system is operating at...
Figure A series of ultrafiltration units is used to concentrate a dye-water solution from an input...
Figure A series of ultrafiltration units is used to concentrate a dye-water solution from an input fresh feed of 10% dye (by mass) to an entire process output of 32% dye (by mass). The fresh feed flow rate to the process is 50.0 kg/min. The figure is shown above. The system can be considered to have a dye in solution with water and the dye remains soluble over the range of concentrations in the process. The ultrafiltration units produce streams...
Toluene + H2 → Benzene + CH4 Two streams enter the process. The first input stream...
Toluene + H2 → Benzene + CH4 Two streams enter the process. The first input stream is pure liquid toluene, which enters at a rate of 40 mol/s. The second input stream is a mixture of H2 (95 mole%) and CH4 (5 mole%). The flow rate of H2 in the second stream is equal to 200 mol/s. Two streams leave the process. The first output stream contains only liquid benzene (product) and toluene (unconverted reactant). The second output stream contains...
1. The following process flow diagram has been prepared in which aqueous ethanol (C2HsOH) streams, 1...
1. The following process flow diagram has been prepared in which aqueous ethanol (C2HsOH) streams, 1 and 4, are treated to produce two concentrated ethanol streams, labelled as stream 2 and stream 6, for medicinal applications. Additional process information for the two units are given as follows, (i) 90% of the ethanol in feed stream 1 is recovered in stream 2, and (ii) 85% of the ethanol in stream 5 is recovered in stream 6. x, = 0.9 kg EtOH/...
2. The output streams of two mixing tanks are mixed together as shown in the figure...
2. The output streams of two mixing tanks are mixed together as shown in the figure below. Volumetric flow rates of input streams are constant and densities are the same. The system experiences a unit step increase in Ci at t-ti, and a unit step increase in C2 at t=t, (t>t). Find the response of C, C4 and Cs. 9. 2 3 2
A process has an input as the flow q gal/min, and an output temperature T Fahrenheit. Initially,...
A process has an input as the flow q gal/min, and an output temperature T Fahrenheit. Initially, the process has been operating for long time at input flow 610 gal/min and output temperature 180 Fahrenheit. An operator introduces a step change in the flow rate (q) to a given process at 4:00 O’clock A.M. He changed the flow from 610 gal/min to 650 gal/min. The effect of the input change resulted in a change in the output. The first change in the temperature occurred at...
(45 pes) An inventor claims to have developed a steady flow device that operates on an electrical power input of 250 kW, has one inlet and two outlets. A stream of ammonia e device at 100 kPa and 20P...
(45 pes) An inventor claims to have developed a steady flow device that operates on an electrical power input of 250 kW, has one inlet and two outlets. A stream of ammonia e device at 100 kPa and 20PC at a rate of 1 kg/s. The two exiting streams ow rate, one is at 200 kPa, 20°C and the other is a saturated liquid at 10 aims that heat transfer occurs with an uniform surface temperature sume that kinetic and...
Consider a two-tank system, where x, is the level of the first tank, and x2 is the level of the second tank. This dynamic system is described by the -xj-x2. The output to be Q4. following model: dt c...
Consider a two-tank system, where x, is the level of the first tank, and x2 is the level of the second tank. This dynamic system is described by the -xj-x2. The output to be Q4. following model: dt controlled is the level of the second tank. (a)Write down the state-space model in matrix form. Verify the 20% (b)Design a state feedback controller so that the closed-loop poles are 25% controllability of the system located at -3 and -4 (c) The...
Problem 3: A system has the transfer function: Gfs) -8 +24s+800 35+6 Assuming time for this system is expressed in seconds, if the system is subjected to a periodic input of 4 sin ot, determine a...
Problem 3: A system has the transfer function: Gfs) -8 +24s+800 35+6 Assuming time for this system is expressed in seconds, if the system is subjected to a periodic input of 4 sin ot, determine a) The frequency o where the amplitude of the output will be at its maximum b) The functional expression for how the output amplitude varies with-the input frequency, c) The functional expression for how the phase of the output with respect to the input varies...
1. (20 points) Consider a cogeneration system operating at steady state. Superheated steam enters the first...
1. (20 points) Consider a cogeneration system operating at steady state. Superheated steam enters the first turbine stage at 6 MPa, 540 °C. Between the first and second stages, 45% of the steam is extracted at 500 kPa and diverted to a process heating load of 5 x 108 kl/h. Condensate exits the process heat exchanger at 450 kPa with specific enthalpy of 589.13 kl/kg and is mixed with liquid exiting the lower pressure pump at 450 kPa. The entire...
1. [25%] Consider the closed-loop system shown where it is desired to stabilize the system with...
1. [25%] Consider the closed-loop system shown where it is desired to stabilize the system with feedback where the control law is a form of a PID controller. Design using the Root Locus Method such that the: a. percent overshoot is less than 10% for a unit step b. settling time is less than 4 seconds, c. steady-state absolute error (not percent error) due to a unit ramp input (r=t) is less than 1. d. Note: The actuator u(t) saturates...
Figure A series of ultrafiltration units is used to concentrate a dye-water solution from an input fresh feed of 10% dye (by mass) to an entire process output of 32% dye (by mass). The fresh feed flow rate to the process is 50.0 kg/min. The figure is shown above. The system can be considered to have a dye in solution with water and the dye remains soluble over the range of concentrations in the process. The ultrafiltration units produce streams...
1. The following process flow diagram has been prepared in which aqueous ethanol (C2HsOH) streams, 1 and 4, are treated to produce two concentrated ethanol streams, labelled as stream 2 and stream 6, for medicinal applications. Additional process information for the two units are given as follows, (i) 90% of the ethanol in feed stream 1 is recovered in stream 2, and (ii) 85% of the ethanol in stream 5 is recovered in stream 6. x, = 0.9 kg EtOH/...
2. The output streams of two mixing tanks are mixed together as shown in the figure below. Volumetric flow rates of input streams are constant and densities are the same. The system experiences a unit step increase in Ci at t-ti, and a unit step increase in C2 at t=t, (t>t). Find the response of C, C4 and Cs. 9. 2 3 2
(45 pes) An inventor claims to have developed a steady flow device that operates on an electrical power input of 250 kW, has one inlet and two outlets. A stream of ammonia e device at 100 kPa and 20PC at a rate of 1 kg/s. The two exiting streams ow rate, one is at 200 kPa, 20°C and the other is a saturated liquid at 10 aims that heat transfer occurs with an uniform surface temperature sume that kinetic and...
Consider a two-tank system, where x, is the level of the first tank, and x2 is the level of the second tank. This dynamic system is described by the -xj-x2. The output to be Q4. following model: dt controlled is the level of the second tank. (a)Write down the state-space model in matrix form. Verify the 20% (b)Design a state feedback controller so that the closed-loop poles are 25% controllability of the system located at -3 and -4 (c) The...
Problem 3: A system has the transfer function: Gfs) -8 +24s+800 35+6 Assuming time for this system is expressed in seconds, if the system is subjected to a periodic input of 4 sin ot, determine a) The frequency o where the amplitude of the output will be at its maximum b) The functional expression for how the output amplitude varies with-the input frequency, c) The functional expression for how the phase of the output with respect to the input varies...
1. (20 points) Consider a cogeneration system operating at steady state. Superheated steam enters the first turbine stage at 6 MPa, 540 °C. Between the first and second stages, 45% of the steam is extracted at 500 kPa and diverted to a process heating load of 5 x 108 kl/h. Condensate exits the process heat exchanger at 450 kPa with specific enthalpy of 589.13 kl/kg and is mixed with liquid exiting the lower pressure pump at 450 kPa. The entire...
1. [25%] Consider the closed-loop system shown where it is desired to stabilize the system with feedback where the control law is a form of a PID controller. Design using the Root Locus Method such that the: a. percent overshoot is less than 10% for a unit step b. settling time is less than 4 seconds, c. steady-state absolute error (not percent error) due to a unit ramp input (r=t) is less than 1. d. Note: The actuator u(t) saturates...
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