period three
Capacity Control
notes
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Figure 46
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:
νAir and other noncondensables leaking into the chiller
νCooling water that is too cold or that fluctuates in temperature too rapidly
νAn electric power failure
These will be discussed in the following figures.
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Figure 47
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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