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TRG-TRC011-EN 39
period three
Capacity Control
notes
As discussed, the point at which crystallization occurs is determined by the
temperature and concentration of the concentrated solution inside the heat
exchanger.
There are generally three possible causes of crystallization in an absorption
water chiller:
n Air and other noncondensables leaking into the chiller
n Cooling water that is too cold or that fluctuates in temperature too rapidly
n An electric power failure
These will be discussed in the following figures.
Probably the most frequent cause of crystallization is that air and other
noncondensables leak into the chiller. Because the operating pressures inside
the absorption chiller are less than the atmospheric pressure, air wants to force
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Figure 46
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Figure 47