Geothermal Heat Exchangers for outdoor enclosures

This ingeniously simple and effective climate control principle, which uses geothermal effects to cool and heat, underscores Rittal’s expertise in all aspects of enclosure systems for outdoor siting. The geothermal heat transmitter is suitable for use whenever earthworks are required to install an outdoor enclosure.

Throughout the world, at a certain depth beneath the earth’s crust, the temperature is always roughly the same, whatever the season; and this fact is used to cool and heat outdoor enclosures. The hot air from the enclosure is forced into a pipe system with a radial or axial fan.

A pipeline system laid in the ground cools the air, which in turn is used to cool the enclosure. In cool external temperatures, the temperature of the air inside the pipeline system rises, and this achieves a heating effect.

The inlet and outlet points of the pipes can be freely positioned to effectively avoid hot spots. Depending on the application, the air discharge and air inlet can be positioned in the base/ plinth, in the roof, or at freely selectable positions inside the enclosure.

Benefits of the geothermal heat exchanger

• With the sealed ventilation system, ambient air is unable to penetrate the enclosure, which in turn prevents the ingress of humidity and aggressive pollutants from the air.
• Minimal energy requirements, since only a radial or axial fan is required to generate the air flow. The fan motors are available in various operating voltages.
• Reduction of noise emissions, since there are no active climate control components mounted on the outside of the enclosure.
• Minimal maintenance required for the fan system.
• Control, monitoring and alarm relays can be achieved via the CMC.

With a radial or axial fan, the hot air from the enclosure is forced into a pipe. A pipeline system laid in the ground cools the air, which in turn is used to cool the enclosure.

In cool external temperatures, the temperature of the air inside the pipeline system rises, and this achieves a heating effect.

With the pipeline system laid horizontally Excellent heat dissipation is effected, because the pipeline system is laid horizontally on one level. Major excavation work is, however, required.

With the pipeline system laid vertically. The pipeline system to and from the outdoor enclosure is laid in a pit. The effects of heat dissipation are somewhat less pronounced, but the pipes are simply laid in a pit where the supply lines to the enclosure can also be laid.

For More Information - Contact Rittal by email rittal@rittal-corp.com