Description
This publication addresses the criteria for the selection of instruments and controls to meet the requirements of a steam plant for heating or electric power generation. Most control system manufacturers have discontinued production of pneumatic controls systems. Replacement parts and qualified service for the equipment are difficult to procure. For these reasons pneumatic controls should not be used for new installation. Electronic systems have been made obsolete by the microprocessor based control systems. Manufacturers no longer make electronic control systems and they should not be specified for new installations. Microprocessor based control systems can provide sequential logic control and modulating control in one control device. This capability makes available boiler control systems, which use both sequential logic and modulating control, that are more flexible and reliable as well as more cost effective. Processing units can be utilized as single loop controllers or more powerful processing units can be applied to individual control subsystems, such as combustion control of ash handling control.
Course Content
1. GENERAL
2. COMBUSTION CONTROLS
3. BOILER CONTROLS
4. NONBOILER CONTROLS
5. CONTROL PANELS
6. FIELD INSTRUMENTATION
This course will give professional engineers and other construction professionals an introduction to power plant instrumentation and controls.
- Learn about pneumatic controls;
- Learn about the advantages and disadvantages of microprocessor controls;
- Learn about the importance of control system safeguards;
- Learn about combustion control systems and instruments;
- Learn how positioning systems are employed;
- Learn how metering control systems regulate combustion;
- Learn about controls for atmospheric omissions; and
- Learn how fuel efficiency controls are used.