Lesson 1 - Introduction to Utilities Part 1
Completion requirements
Done: View
To do: Go through the activity to the end
This lesson introduces the Utilities Part 1 unit. It also contains a brief overview of the topics that you will study in the forthcoming unit.
Refrigeration
The refrigeration lessons will:
- Explain the ordinary vapour compression cycle (OVC) used in refrigeration
Figure: The refrigeration cycle
- Describe how the refrigeration process can be shown on a Mollier diagram (just like for steam!)
Figure: Illustration of an OVC cycle on a Mollier diagram
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Delve into the details of each step of the OVC
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Explain the efficiency of the refrigeration process, which is known as the coefficient of performance (COP)
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Explore the properties of primary and secondary refrigerants
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Look at the most common choices of refrigerants
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Review the equipment used in the OVC cycle and the various options available
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Explore the way in which refrigerants can be used