Technical Bulletins

Vortex Tube Short Course

In a new 5-page, full color White Paper we discuss the basic operation of vortex tube technology and guide the reader on proper application in many heating and cooling applications. This informative paper details how vortex tubes, with no moving parts, create hot and cold air streams from a compressed air source. Attention is given to proper model selection and adjustment, and discusses how the quality of the compressed air supply and conditions downstream of the vortex tube can positivity or negatively impact the success of the installation.

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Reliable Protection of Electronics in Ordinary and Hazardous Locations

There is no dispute that power densities have increased as enclosure volumes have gotten smaller. Packing components more densely reduces the circuit size and increases speed but leaves little room for heat dissipation. Because many industries, including manufacturing, food, chemical, water and wastewater processing, oil refining and petrochemical processing and others, have become more dependent on sophisticated microprocessors, PLCs and VFDs, the need for proper heat dissipation has become crucial to keep controls protected. Tightly packed enclosures and panels restrict airflow, resulting in rapidly rising internal temperatures, thermal runaway and increasing control failures.

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Electronic Equipment Failures: Cause, Effect and Resolution 

High temperatures cause over 50% of electronic equipment failures, according to a study by the US Air Force Avionics Integrity Program.  Vibration and humidity each contribute an additional 20% of failures says the same study.  Long term weather forecasts for 2014 predict temperatures in many areas to be hotter than normal beginning in May and continuing through August with temperatures peaking in late June through late August.

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