Circulating Water System Training

551-01 Introduction to the Circulating Water System

When you complete this lesson, you will be able to describe the design and operation of a circulating water system.

  • Discuss the function of circulating water system and its role in the operation of a power plant
  • Describe typical components used in a circulating water system
  • Identify the flow paths that bring circulating water into, through, and out of a typical power plant
  • Describe system operation during:
    • Start-up
    • Normal use
    • Shutdown

551-02 Function of the Circulating Water System

When you complete this lesson, you will be able to describe the design and operation of a circulating water system.

  • Identify the function of the circulating water system
  • Discuss its contribution to efficient power plant operation
  • Compare the use of water and air as cooling mediums
  • Describe commonly used system designs and identify conditions appropriate for the use of each

551-03 Circulating Water System Components

When you complete this lesson, you will be able to describe the components that make up a circulating water system and explain their functions.

  • Discuss common circulating water system designs
  • Identify components of a once through type system and describe their features
  • Identify components of a recirculating circulating water system and describe their features

551-04 Circulating Water System Start-up

When you complete this lesson, you will be able to explain the steps required to safely start the circulating water system.

  • Describe preparation for starting the circulating water system
  • List checks performed prior to start-up
  • Identify the steps completed during start-up
  • Discuss operators’ responsibilities during start-up
  • Describe the inspections and checks performed after start-up

551-05 Circulating Water System Normal Operations

When you complete this lesson, you will be able to describe how to monitor and adjust the circulating water system during normal operations.

  • List circulating water system operating parameters
  • Describe how parameters are monitored, and explain how to make minor changes and adjustments
  • Discuss circulating water system maintenance during normal operations
  • Compare the roles of the field and control room operators, and discuss the importance of coordinating their activities
  • Define cycle efficiency

551-06 Circulating Water System Shutdown

When you complete this lesson, you will be able to describe circulating water system shutdown procedures.

  • Identify circumstances that prompt shutdown of the circulating water system
  • Describe typical shutdown preparations
  • List safety measures associated with shutdown
  • Explain the steps to shut down the circulating water system

551-07 Circulating Water System Controls

When you complete this lesson, you will be able to describe typical instruments and control systems used with the circulating water system.

  • Explain the importance of monitoring and managing the circulating water system
  • Describe the use of the following instruments:
    • Level indicator
    • Differential pressure detector
    • Flow meter
    • Pressure meter
    • Temperature detector
  • Describe automatic controls typically used in the circulating water system:
    • Intake structure instruments
    • Cooling tower instruments
    • Condenser instruments

551-08 Cooling Towers: Operating Principles and Designs

When you complete this lesson, you will be able to explain the operating principles of a cooling tower and identify and describe various cooling tower designs.

  • Explain the operating principle of a cooling tower
  • List and describe various types of natural draft cooling towers
  • List and describe various types of mechanical draft cooling towers
  • Describe different air flow path designs of cooling towers
  • Describe cooling towers by shape characterization

551-09 Cooling Towers: Components

When you complete this lesson, you will be able describe the basic structural, mechanical and electrical components used in the construction and operation of cooling towers.

  • Identify and describe the following structural components of a cooling tower:
    • Cold water basin
    • Framework
    • Fan deck
    • Fan cylinders
    • Water distribution system
    • Fill
    • Drift eliminators
    • Casing
    • Louvers
  • Identify and describe the following mechanical components of a cooling tower:
    • Fans
    • Speed reducers
    • Drive shafts
    • Valves
  • Identify and describe the major electrical components of a cooling tower

551-10 Air Cooled Condensers

When you complete this lesson, you will be able to describe basic design principles, structural components, and operating considerations of industrial air cooled condensers.
You will also be able to describe the flow of water for condensation of steam in an A-frame air cooled condenser and discuss typical maintenance procedures for ACCs.

  • Discuss the function of an air cooled condenser and its role in the operation of a power plant
  • State the purpose for the A-frame design and finned tubes of commonly employed air cooled condensers
  • Describe the standard structural components of an A-frame air cooled condenser
  • Identify flow paths into and out of an A-frame air cooled condenser
  • Discuss an air cooled condenser’s contribution to efficient power plant operation
  • List common maintenance concerns for A-frame air cooled condensers utilizing finned tubes