Vortex tube coolers are economical and maintenance-free

18 June 2003 Manufacturing / Production Technology, Hardware & Services

Elen Enclosures says it offers a simple and economic system to cool sensitive instrumentation, electronics and communications equipment or components in enclosures and cabinets located in harsh, dirty and hot industrial or hazardous (Ex) locations.

Powered by compressed air, the stainless steel Vortex Tube coolers are easy and quick to install. The system protects the components by cooling the internal air in the enclosure below the ambient temperature, removing humidity, inhibiting corrosion and maintaining positive air pressure to prevent the ingress of water, dust, oil mist and hot ambient air. The Vortex Tube cooler generates cold air without moving parts and refrigerants - resulting in exceptional reliability. Maintenance is minimal - if any. Air consumption can be minimised using a thermostat combined with solenoid valve.

Model 20025 delivers approx 800 W (2500 BTU/h) of cooling power. The cooling capacity is continuously adjustable by the 'hot end' valve. In applications requiring more cooling than 800 W the cooler can be installed in a 'battery' arrangement. Elen Enclosures can help with the assessment of cooling requirements. Apart from Vortex coolers the company is offering a full range of other cooling options such as filter fans, heat exchangers and maintenance-free filterless Nano-coated air conditioners.

How does a Vortex tube work?

A Vortex tube is a device with no moving parts which will convert a stream of compressed air into two streams - one hot and one cold. A Vortex tube can produce cold air down to -35°C and hot air up to +127°C. Compressed air is injected tangentially into the tube's generator chamber at sonic speed and creates a cyclone (Vortex) spinning at about one million revolutions per minute. Part of the air is forced to spin inward to the centre hole and travels up the tube where a valve turns this spinning column (Vortex) of air inside itself. The inside column of air gives up its heat to the outside column. The cold air is then directed out the cold end of the Vortex Tube. The temperature and air flow are totally controllable by adjusting the valve at the hot end of the tube.

For more information contact Elen Enclosures, 011 472 2220, [email protected]

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