Course: HET 194 NATE Certification Preparation - Spring 2015

Unit 4 Outline

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Unit 4 - Week 7 and 8 Outline

1)   Identify the ways heat is transferred in HVAC systems

- What is heat?
- How does heat move?
- What types of heat?

2)   Describe the different states of matter

- Conduction
- Convection
- Radiation

3)   Describe what is temperature

- Heat intensity

4)   Discuss the types of heat

- Sensible Heat

b)   Latent Heat

- Latent Heat of Fusion
- Latent Heat of Condensation
- Latent Heat of Vaporization

5)   Explain the meaning of Btu

- How much energy is a Btu
- How do we measure a Btu

6)   Discuss Heat transfer difference in Winter and Summer

- Heat Loss
- Heat Gain

Summary

- Heat always travel from warm to cold
- Temperature  measuresof the intensity of heat energy
- British Thermo Unit is the measure of the capacity of heat energy
- Thermodynamics is the study of heat energy

Vocabulary

- Element
- Compounds
- Heat
- Btu’s
- Thermodynamics
- Conduction
- Convection
- Sensible Heat
- Specific Heat
- Sub-cooled
- Superheated
- Latent Heat
- Change of State
- Radiation