Refrigeration Theory Course Outline

Basic theory

• Heat transfer, the btu, definition of ton of refrigeration
• The basic compression cycle, chilled water system and absorption system
• Reading pressure-temperature saturation tables, boiling points for various refrigerants
• Effect of pressure and temperature on refrigerants

Compressors

• Functions, types, construction and maintenance

Condensers

• Function, types, heat balance, air and water cooled

Metering devices

• Function and types, principals of operation and maintenance

Evaporators

• Function, types, heat gain and loss, air and water heat exchange

Other Systems

• Ammonia, and Absorption systems
• Oil return, compressor protection and off cycle protection
• Reading the psychrometric chart, using the sling psychrometer
• Comfort and condition of the air
• Cooling towers (Principals of operation and maintenance)
• Refrigerant recovery

Definition of Electricity

• Laws of electrical charges
• Attraction and repulsion
• Electrical units of measurement
• Forms of electromotive force

Ohm's Law and D.C. Theory

• Voltage and Power
• Series and Parallel Circuits

A.C. Theory

• Wave forms
• A.C. circuits and Power Factor