Final answer:
A temperature control loop using steam as the manipulated variable should have sensor, controller, and actuator to measure and adjust the temperature.
Step-by-step explanation:
A temperature control loop using steam as the manipulated variable should have the following characteristics:
- Steam as the manipulated variable: In a temperature control loop, steam is used as the manipulated variable to control the temperature. By adjusting the flow rate of steam, you can change the temperature in the system.
- Sensor: A sensor is required to measure the temperature of the system. It provides feedback on the current temperature, allowing the control loop to adjust the steam flow accordingly.
- Controller: The controller uses the feedback from the sensor to determine the desired steam flow rate. It compares the measured temperature to the setpoint temperature and adjusts the steam flow accordingly.
- Actuator: An actuator is used to control the steam flow rate. It receives the control signal from the controller and adjusts the flow rate of steam accordingly.