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|  DOE-STD-1161-2003
Supporting Knowledge and/or Skills
a.
Describe the principle of operation for the following types of heat exchangers:
Shell and tube
Fin and tube
Cooling tower
b.
Define the following terms as they apply to heat exchangers:
Tube sheet
Tell-tale drain
Parallel flow
Counter flow
Cross flow
c.
Using a cutaway drawing of the following types of heat exchangers, show the flow paths
of the cooling medium and the medium to be cooled:
Parallel flow
Counter flow
Cross flow
d.
Explain the principle of operation of a forced-draft cooling tower.
e.
Explain the principle of operation of a natural-draft (parabolic) cooling tower.
3.
Mechanical systems personnel shall demonstrate a working level knowledge of
thermodynamics.
Supporting Knowledge and/or Skills
a.
Define the following:
Compression
Isothermic
Isentropic
Adiabatic
b.
Discuss entropy and enthalpy as they relate to mechanical systems.
c.
Define and discuss the following:
Carnot cycle
Rankine cycle
Vapor-refrigeration cycle
Otto cycle
Gas standard cycle
d.
Read and interpret a Mollier diagram.
e.
Using data from a steady-state system, calculate the following:
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