Question 22.4: A batch operation is used to heat a liquid to a specified te...

Process Dynamics and Control-Solution Manual [EXP-2817]

A batch operation is used to heat a liquid to a specified temperature. There is a start button, a stop button, inlet/outlet valves, and limit sensors for low tank level (LL) and high tank level (LH). Flow is performed by gravity transfer. The process steps are

(a) Push the start button to start the process.

(b) Fill the tank up to LH by opening an inlet valve with the exit line closed.

(c) Heat the liquid to the temperature set point while stirring.

(d) Turn off the stirrer and empty the tank down to LL by opening the exit valve (but the inlet valve must be closed). Draw an information flow diagram, sequential function chart, and ladder logic diagram.

The Blue Check Mark means that this solution has been answered and checked by an expert. This guarantees that the final answer is accurate.
Learn more on how we answer questions.

Related Answered Questions

Consider the tank car unloading of a hazardous chemical, as shown in Fig. 5.5. A pump is used to empty the tank car and fill the storage tank. Then the chemical is transferred to a chemical reactor. Describe the discrete steps necessary to carry out such an operation and discuss any safety issues

Verified Answer:

In batch processing, a sequence of one or more ste...

Develop an unsteady-state model for a stirred batch reactor, using the nonlinear continuous reactor model presented in Example 4.8 as a starting point. For the parameter values given below, compare the dynamics of the linearized models of the batch reactor and the continuous reactor, specifically

Verified Answer:

1.- Because there is no steady state for a batch r...

Consider the batch reactor system simulated by Aziz et al.^3 The two reactions, A + B → C and A+ C → D, are carried out in a jacketed batch reactor, where C is the desired product and D is a waste product. The manipulated variable is the temperature of the coolant in the cooling jacket. There are

Verified Answer:

T_{r}=

Reactor temperature profile ...

A truth table for a set of inputs is shown below where A and B are inputs and Y is an output: Construct binary operations (AND, OR, NOT) in series or parallel that yield Y from A and B.

Verified Answer:

A B Y 0 0 1 1 0 1 0 1 0 1 1 1 From the...

Consider the microwave oven as an example of a discrete state process. The process variables that can be on or off include fan, light, timer, rotating base, microwave generator, and door switch. The process steps include opening the oven door/placing food inside, closing the door, setting the timer

Verified Answer:

Microwave Operating States Condition Fan Light...

Fogler^2 describes a safety accident in which a batch reactor was used to produce nitroaniline from ammonia and o-nitro chlorobenzene. On the day of the accident, the feed composition was changed from the normal operating value. Using the material/energy balances and data provided by Fogler, show

Verified Answer:

Material balance:

\left(-r_{A}\right)=-\fra...

Suppose a batch reactor such as the one in Fig. 22.12 has a gas ingredient added to the liquid feed. As long as the reaction is proceeding normally, the gas is absorbed in the liquid (where it reacts), keeping the pressure low. However, if the reaction slows or the gas feed is greater than can be

Verified Answer:

The intention is to run the reactor at the maximum...

A batch reactor converts component A into B, which in turn decomposes into C: k1 k2 A → B → C where k1 = k10e^−E1∕RT and k2 = k20e^−E2∕RT. The concentrations of A and B are denoted by x1 and x2, respectively. The reactor model is dx1/dt = −k10x1e^−E1∕RT dx2/dt = k10x1e^−E1∕RT − k20x2e^−E2∕RT Thus,

Verified Answer:

The reactor equations are:

\begin{aligned}&...

Consider a neutralization system shown in Fig. E22.7, where a certain amount of acid feed is added to a tank, chemically treated, and then sent to the next tank. pH analyzer (AT) indicates when the neutralization is complete. Level switches LS1, LS2, and LS3 are activated when the level in the tank

Verified Answer:

Information Diagram: Ladder Logic Diagram: R1= V1 ...

A two-tank filling system is shown in Fig. E22.6. Both tanks are used in a similar way. Tank 1 is considered to be empty when the level is less than L1 and is considered to be full when the level is greater than L2. Initially, both tanks are empty. If push button S is pressed, both tanks are filled

Verified Answer:

Information Flow Diagram: Sequential Function Char...