Heat Exchangers

Duration: 0.25 Hrs

Course Level: Intermediate
Languages: English, Portuguese, French, Polish, Russian
Capability: Audio, Video

Heat exchangers are typically used to transfer heat between fluids using conduction, convection, and radiation. This course details the three heat transferring methods used by heat exchangers as well as how heat exchangers are classified. It also illustrates common heat exchangers types such as shell-and-tube, plate, extended surface, and regenerative heat exchangers.

Learning Objectives

• Describe the purpose of heat exchangers
• Differentiate between co-current and counter-current flow arrangements
• List some variables which affect heat transfer
• Describe the construction of a typical heat exchanger
• Describe different exchanger types and their strengths

Duration: 0.50 Hrs

Course Level: Intermediate
Languages: English
Capability: Audio, MobileReady

Many industrial processes must heat or cool fluids to produce products. Heating and cooling are often accomplished by transferring heat between fluids, and this heat transfer between fluids occurs in heat exchangers. There are many types of heat exchangers, but one of the most common types is a shell and tube heat exchanger. In this interactive, online course, you will look at the operation of a typical shell and tube heat exchanger, including startup and shutdown. You will also explore some of the problems associated with the operation of a typical shell and tube heat exchanger.

Learning Objectives

By the end of this course, you will be able to:

• Describe a general procedure for starting up a shell and tube heat exchanger
• Describe a general procedure for shutting down a shell and tube heat exchanger
• Describe general operator responsibilities associated with the operation of a shell and tube heat exchanger
• Explain the causes and effects of fouling, tube leaks and trapped gases
• Describe the symptoms of fouling, tube leaks and trapped gases and how to reduce their occurrence

Duration: 0.50 Hrs

Course Level: Intermediate
Languages: English
Capability: Audio, MobileReady

In many industrial facilities, various pieces of equipment and fluids used in process systems need to be cooled. Disposing of or discharging hot water into lakes or rivers can lead to thermal pollution, and water that is discharged must be replaced. For these reasons, it’s often more efficient to cool the hot water with a cooling tower and reuse it. This interactive online course will introduce you to cooling tower systems and a couple of types of cooling towers, and you will see how a typical cooling tower is operated. You will also look at how chemistry is involved with maintaining a cooling tower.

Learning Objectives

By the end of this course, you will be able to:

• Describe the operation of a basic cooling water system and what occurs in the tower during the cooling process
• Explain the general operation of a natural-draft cooling tower and the two types of mechanical-draft cooling towers: induced-draft towers and forced-draft towers
• Describe a typical shutdown and startup procedure for one cell of a multicell cooling tower
• Cite examples of typical operator checks for cooling towers
• Explain what suspended and dissolved solids are, how they affect a cooling water system, and how problems caused by suspended and dissolved solids can be minimized
• Explain what dissolved gases and microorganisms are, how they affect cooling water systems, and how their effects can be minimized
• Describe ways chemicals are added to cooling water systems and precautions when working with hazardous chemicals

Duration: 0.50 Hrs

Course Level: Intermediate
Languages: English
Capability: Audio, MobileReady

Learning Objectives

By the end of this course, you will be able to:

• Discuss the function and operation of a typical condenser
• Describe a startup procedure and a general shutdown procedure for a typical condenser
• Cite examples of checks that should be made during the operation of a condenser
• Describe how a kettle-type reboiler operates
• Describe how a thermosiphon reboiler operates
• Cite examples of operator responsibilities associated with reboiler operation