Unit 9 - Refrigerant Tables

The concept of refrigerant tables and how they help to set controls and compute head pressure, the use of refrigerant tables to calculate liquid and vapor density and net refrigeration effect and estimate discharge temperatures

Learning Outcome:

Upon completion of this module you will be able to:

• set controls;

• compute head pressure for a specific set of operating conditions.

• calculate the liquid density of refrigerants;
• calculate vapor density values

• calculate net refrigeration effect;
• estimate normal discharge temperatures

1. Use refrigerant tables to help you:

2. Use refrigerant tables to help you:

3. Use refrigerant tables to help you:

• Topic Introduction and Objectives
• Using Tables to Determine Properties at Saturation
• Column 1: Temperature
• Check-Point Question: Saturation Properties
• Columns 2 and 3: Pressure
• Check-Point Question: Converting Pressure
• Finding Saturation
• Finding Condenser Values
• Saturation Temperatures and Corresponding Pressures
• Topic Summary

• Topic Introduction and Objectives
• Column 4: Liquid Density
• Finding the Amount of Liquid Refrigerant in a Container
• Column 5: Vapor Volume
• Other Uses for Vapor Density Values
• Check-Point Question: Density and Volume
• Topic Summary

• Topic Introduction and Objectives
• Columns 6, 7 and 8: Enthalpy
• Check-Point Question: Heat Content
• Heat Content Values in Column 6
• Heat Content Values in Column 6 – Cont.
• Column 7: Latent Heat of Vaporization
• Column 8: Sum of the Heat Content
• Net Cooling Effect
• Another Method for Finding Net Cooling Effect
• Columns 9 and 10: Entropy
• Check-Point Question: Entropy
• Conclusion
• Topic Summary

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