Controlled, manipulated, and disturbance variables in the given figure are to be identified. Also, the effect of time length required on the waste concentration in the dialysis treatment is to be explained. Concept introduction: A control system is a system that regulates or monitors the behavior or working of other devices/systems using control loops. It can be used to control a single device or large industrial processes. Controlled variables (CVs) are the process variables that can be controlled, and its desired value is known as the set point. Manipulated variables (MVs) are the process variables that are adjusted by the controller to keep its value close to the set point. Disturbance variables (DVs) are the process variable that affects the controlled variables, but they cannot be manipulated and are associated with any changes in the operating environment of the ongoing process.

Question

A steam boiler or steam generator is a device used to produce steam by transferring heat to water. In our case, the combustion chamber is fueled with propane (C3H8) at a flowrate of 50.0 mol/h in an excess air of 50%. Assume that both propane and air are fed at 25ºC and the combustion gases leave the chamber at 200ºC. Pressure can be assumed to be atmospheric.* Determine: 1. The heat obtained assuming complete combustion. Compare the results using elements or compounds 2. The steam flowrate that could be generated if the heat is directed to obtain superheated steam at 2 bar and 160ºC from saturated liquid water at this pressure solve

Answer 1

Question

Chapter 1, Problem 1.12E

Interpretation Introduction

Interpretation:

Controlled, manipulated, and disturbance variables in the given figure are to be identified. Also, the effect of time length required on the waste concentration in the dialysis treatment is to be explained.

Concept introduction:

A control system is a system that regulates or monitors the behavior or working of other devices/systems using control loops. It can be used to control a single device or large industrial processes.

Controlled variables (CVs) are the process variables that can be controlled, and its desired value is known as the set point.

Manipulated variables (MVs) are the process variables that are adjusted by the controller to keep its value close to the set point.

Disturbance variables (DVs) are the process variable that affects the controlled variables, but they cannot be manipulated and are associated with any changes in the operating environment of the ongoing process.

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