INSIGHTS on Cold Storage
If the voluminous patent filings for new compressors, refrigerants, insulation, and power management are any indication, refrigeration technology is one of the most-researched engineering topics affecting lab operations.
New Twists to Mature Technologies
Developers are constantly on the lookout for technologic tweaks that maximize efficiency, reliability, stability, and temperature uniformity while minimizing noise, energy consumption, and released heat.
In one popular ultralow-temperature freezer design, cascade refrigeration, units reach target temperatures in two stages. The first compressor lowers temperature to an intermediate level, at which point a second compressor takes it the rest of the way, for example to -86°C. Cascade compressors use different refrigerants.
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