Solution Found!
In a thermostat control system for a home heating system
Chapter 1, Problem 1.9(choose chapter or problem)
In a thermostat control system for a home heating system (a) Identify the manipulated variable (b) Identify the controlled variable (c) How is a valve involved in the control system? What does it manipulate? (d) Name one important disturbance (it must change with respect to time).
Questions & Answers
QUESTION:
In a thermostat control system for a home heating system (a) Identify the manipulated variable (b) Identify the controlled variable (c) How is a valve involved in the control system? What does it manipulate? (d) Name one important disturbance (it must change with respect to time).
ANSWER:Step 1 of 3
To answer this question, we need to understand what are the three important process variables in a control problem:
1. Control Variable:
A control variable is the variable that is measured and controlled. This could be the desired temperature in a room or a level of water in a tank.
2.Manipulated Variable:
It is the variable which is adjusted or manipulated to keep the control variable at desired levels or at set point.
3. Disturbance variable: These are variables that affect the control variable, generally changes in environment could be called disturbance variable.
