Psychrometrics and its Use in HVAC
In Psychrometrics and its Use in HVAC , you'll learn ...
- What is psychrometrics?
- Dry Air and Moist Air Composition
- Humidity Parameters
- Gas Laws Applied to Dry and Moist Air
Overview
A chiller can be generally classified as a refrigeration system that uses either a vapor compression or absorption cycle to cool. Both the absorption and the mechanical compression systems have the evaporation and condensation of a refrigerant in common. In both systems, the refrigerant evaporates at low pressure to absorb heat and then condenses at higher pressure to reject heat to the atmosphere. Both systems require energy to raise the temperature of the refrigerant for the heat rejection process.
The difference is that mechanical chillers use reciprocating, centrifugal or screw compressors that are powered by electric motors whereas the absorption cycle uses heat (usually steam or direct fire) to raise the refrigerant temperature. Mechanical chillers are most commonly used in residential and commercial buildings, whereas absorption systems are often an excellent choice for industrial applications, where there is scope of waste heat recovery.
Learning Objectives
Upon completion of this course, participants will be able to:
- Define psychrometrics.
- Describe the composition of dry air and moist air.
- Identify humidity parameters.
- Apply gas laws to dry and moist air.
- Explain dry-bulb and wet-bulb temperature concepts.
- Interpret psychrometric charts for HVAC applications.
Certificate of Completion
You will be able to immediately print a certificate of completion after passing a multiple-choice quiz consisting of 21 questions. PDH credits are not awarded until the course is completed and quiz is passed.
| This course is applicable to professional engineers in: | ||
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