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Page Title:
Operation of air conditioning and refrigeration (AC&R) systems. |
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|  DOE-STD-1161-2003
Entropy change
Enthalpy change
Pressure
Temperature
4.
Mechanical systems personnel shall demonstrate a working level knowledge of the theory
and operation of air conditioning and refrigeration (AC&R) systems.
Supporting Knowledge and/or Skills
a.
Define the following terms as they apply to air conditioning and refrigeration systems:
Latent heat of vaporization
Latent heat of fusion
Refrigerant
Vaporization point
Air and non-condensable gases
b.
Using a one-line diagram of the basic refrigeration cycle, discuss the theory of operation
of refrigeration systems.
c.
Discuss the function of the following components of a typical refrigeration system:
Thermal expansion valve
Evaporator coils
Receiver
d.
Discuss refrigerant leak detection.
e.
Discuss the general hazards involved in handling refrigerants.
5.
Mechanical systems personnel shall demonstrate a working level knowledge of the basic
construction, operation, and theory of ventilation systems.
Supporting Knowledge and/or Skills
a.
Using a one-line diagram of a heating, ventilation, and air conditioning system, identify
the following components and discuss their purpose:
Blowers
Fans
Dampers
Chillers
Filters
Heat exchangers
Scrubbers
Hoods
Pressure sensors
7
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