An internal combustion engine produces a lot of waste heat during its operation. It is cooled via a liquid called the engine coolant, circulating through the engine block. The waste heat needs to be removed before the coolant can be pumped back into the engine block. This is accomplished by the radiator as shown below.
This system facilitates the transfer of heat from hot coolant to the ambient air without them coming into contact with each other. Such devices are known as heat exchangers and they play a vital role in various engineering applications. In this lesson we will discuss different types of heat exchangers and learn how we can calculate the overall heat transfer coefficient for them.
Here are the handout slides for this lesson.