if an average output of 200 gal/hr is required to maintain a process, determine the duty cycle of the output valve and the input valve, if the tank is 500 gallons.
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if an average output of 200 gal/hr is required to maintain a process, determine the duty...
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...
Problem 5: The 28-in-diameter pump in the Figure at 1170 r/min is used to pump water at 20°C through a piping system at 14,000 gal/min. (a) Determine the required brake horsepower. The average friction factor is 0.018. (b) If there is 65 ft of 12-in-diameter pipe upstream of the pump, how far below the surface should the pump inlet be placed to avoid cavitation? Given that the water at 20 °C has a specific weight of 62.4 lbf/ft and vapor...
The provider orders to maintain urine output ≥ 1 cc/kg/hr. The patient weighs 20 kg and over the past 6 hours, the total urine output was 100 ml. Did the patient maintain the required urine output?
Process Design & Control
Consider the process of filling a tank with compressed
air from a constant pressure supply.
Consider the process of filling a tank with compressed air from a constant pressure supply The tank has a volume of 500 ft' and initially is at atmospheric pressure and 75°F. The tank is connected to a high pressure air line that contains a control valve. The valve is quickly opened when the filling process begins, and the flow rate of...
6. Determine the force P required to maintain the 200-kg engine in the position for which θ = 30°. The diameter of the pulley at B is negligible. 200 kg
Power Electronics and Drive Systems
a) A boost converter is required to have an output voltage of 8 V and supply a load current of 1 A. The input voltage varies from 2.7 to 4.2 V. A control circuit adjusts the duty ratio to keep the output voltage constant. Select the switching frequency. Determine a value for the inductor such that the variation in inductor current is not more than 40 percent of the average inductor current for all operating...
Design a flyback converter for an input of 24 volts and an
output of 40 volts. Assume a 40W load and keep the blocking voltage
for the transistor to < 26 volts.
For your design determine:
a) The transformer turn ratio n (5).
b) The duty cycle D (5).
c) The average source current (3).
d) The output voltage of the converter when we include the
effect of a transformer winding losses as 0.05 ohms (7).
Using a MOSFET and...
An input noise process n;(t) having a PSD that is constant between 200 and 700 rad/s (the power density is 106W/Hz in the passband 200 to 700 rad/s) is the input to a lowpass filter whose bandwidth is 500 rad/sec and gain is 1. Do not forget that the spectrum and the frequency response are symmetrical between-oo and +00. Sketch the PSD of noſt), the noise process at the output of the lowpass filter. Show all relevant details Find the...
i would appriciate your help. thanks
Question 4-(20 marks) (a) Briefly describe the characteristics of an operational amplifier (op-amp) and describe two examples of where It can be used in signal conditioning circults (b) (4 marks) The level of liquid In a vertical cylindrical tank is controlled by a two-position level controller. The following data was recorded for the tank and flow system over a period of stable operation tank diameter. inlet flow rate (inlet valve open5 /min inlet flow...
1. Increasing the capacity just before a bottleneck operation will improve the output of the process. True or false 2. Increasing the capacity of the bottleneck resource always increases the capacity of process. True or false 3. If the process has an average inventory of 5 units and the flow time is 1 hr, than the actual cycle time is 12 minutes. True or false