Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Chemical Engineering Expert

problem 1: Consider a heat-exchanger control loop with no dead time. It is controlled by a PD controller. The rate time is 0.25 min. A real PD controller is used with filtering where α = 0.1.

177_heat exchanger.jpg

The heat exchanger control loop has the following transfer function (time constants in seconds)

532_heat exchanger control loop.jpg

Determine the maximum gain of the system Kcu. What are the corresponding GM & PM if we set Kc = Kcu/1.7.

problem 2: Consider the previous heat exchanger. Tune a proportional controller for

a) GM = 2; PM = 45 degrees and

b) MPH (maximum peak height) occurs at 2 dB (provides a ς of ~ 0.4).

problem 3: Consider the following transfer functions. Neatly sketch their Bode plots and compare with the Matlab figures.

1108_bode plots.jpg

problem 4: Consider the cascade loop as shown below:

1884_cascade loop.jpg

i) Specify the inner-loop gain such that the damping coefficient of the closed loop is equal to 0.4

ii) Derive the ultimate primary controller gain.

iii) Deduce the ultimate gain for the system configured as a conventional loop.

790_conventional loop.jpg

Chemical Engineering, Engineering

  • Category:- Chemical Engineering
  • Reference No.:- M91848

Have any Question? 


Related Questions in Chemical Engineering

A wing generates a lift l when moving through sea-level air

A wing generates a lift L when moving through sea-level air with a velocity U. How fast must the wing move through the air at an altitude of 35,000 ft if it is to generate the same lift? (Assume the lift coefficient is c ...

Write a computer program that implements the estimation of

Write a computer program that implements the estimation of a first-orderplus-dead-time transfer function with the tangent method and then determine the PID parameters using the Ziegler-Nichols formula. Apply the program ...

A draw an arbitrary closed contour on figure 711 and show

(a) Draw an arbitrary closed contour on Figure 7.11 and show that it yields zero net flow of current. (b) Suppose a capacitor is inserted into the circuit instead of any of the resistors and the current is switched on. D ...

A potential flow source having an intensity of 10m2s placed

A potential flow source having an intensity of 10m2/s, placed in the point of Cartesian coordinates (1;0), and a sink having identical intensity, placed in the point (-1;0), are combined with a uniform flow at 25 m/s, in ...

A solar collector design consists of an inner tube enclosed

A solar collector design consists of an inner tube enclosed concentrically in an outer tube that is transparent to solar radiation. The tubes are thin walled with inner and outer diameters of 0.10 and 0.15 m, respectivel ...

A closed and sealed rigid tank contains 11 kg of liquid

A closed and sealed rigid tank contains 11 kg of liquid water at equilibrium with 1.17 kgof vapor at a pressure of 2 bar. The tank is equipped with two alarms: a pressure alarmthat will sound if the pressure exceeds 10 b ...

100 moles of a fuel containing methane and butane is burned

100 moles of a fuel containing methane and butane is burned with 25% excess air in a furnace producing stack gas at 300 degrees C and 105 kPa. Determine the amount of 100 psi saturated steam that can be produced from wat ...

1 100 moles of a fuel containing methane and butane is

1. 100 moles of a fuel containing methane and butane is burned with 25% excess air in a furnace producing stack gas at 300C and 105 kPa. Determine the amount of 100 psi saturated steam that can be produced from water fed ...

Because of shortage of copper it was decided to make the

Because of shortage of copper, it was decided to make the fuse in Example 7.4 out of iron (not a very good idea because of corrosion). If the same dimensions, including the width calculated in Example 7.4a are used and t ...

A horizontal 25-mm diameter cylinder is maintained at a

A horizontal, 25-mm diameter cylinder is maintained at a uniform surface temperature of 35°C. A fluid with a velocity of 0.05 m/s and temperature of 20°C is in cross flow over the cylinder. Determine whether heat transfe ...

  • 4,153,160 Questions Asked
  • 13,132 Experts
  • 2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

WalMart Identification of theory and critical discussion

Drawing on the prescribed text and/or relevant academic literature, produce a paper which discusses the nature of group

Section onea in an atwood machine suppose two objects of

SECTION ONE (a) In an Atwood Machine, suppose two objects of unequal mass are hung vertically over a frictionless

Part 1you work in hr for a company that operates a factory

Part 1: You work in HR for a company that operates a factory manufacturing fiberglass. There are several hundred empl

Details on advanced accounting paperthis paper is intended

DETAILS ON ADVANCED ACCOUNTING PAPER This paper is intended for students to apply the theoretical knowledge around ac

Create a provider database and related reports and queries

Create a provider database and related reports and queries to capture contact information for potential PC component pro