Air dryers save energy
SRC series cycling dryers (Sullair)
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The "SRC" series cycling dryers offered by Sullair (Michigan City, IN), unlike similar dryers, sense the presence of a partial load. Each dryer's refrigeration circuit incorporates
temperature and pressure sensors that shut off the compressor under certain conditions. A glycol base then continues to keep
the temperature as low as possible. When the temperature rises, the compressor turns on to cool the glycol down. Britt Shipley,
Sullair's manager of contaminant-removal systems, says, "Depending on the load of the package, [the unit] could save 40–60%
energy."
The series averages less than 1 psi of pressure drop, which is less than most similar dryers, according to Shipley. The low
pressure drop ensures that the units use less power and thus are more energy efficient. The units also save power by using
scroll compressors, which have less mass and fewer moving parts than piston compressors.
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