Military/Rugged Environments

Mean Time Between Failure (MTBF) Test

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Outdoor Electronics Enclosure Cooling:

Mean Time Between Failure (MTBF) Test Outdoor Electronics Enclosure Cooling

 

TECA Model AHP-1800XEHC Thermoelectric Air Conditioner with heat and cool functions is installed on a rooftop enclosure in harsh conditions and exposed to extreme ambient temperatures. Testing for over 90,000 hours was successfully completed with no failures occurring on the AHP-1800XE enclosure cooler. This is a good example of the reliable nature of thermoelectric technology. Thermoelectric cooling is a good choice for enclosures that are in remote or hard-to-access places. There is very little maintenance required as it is a solid-state technology. The only moving parts are the fans.

Learn more about thermoelectric technology by requesting our free whitepaper today: 

 

WIND TURBINE APPLICATION

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Wind Turbine:

wind turbine

The applications for AHP-1802XE’s are Vestas wind turbines, one located in Greece and one in the south of Japan.

“We are installing sensitive measurement equipment, and need to control the inside temperature of the measurement panel. One panel is in each of the rotors in the hub and the two others are in the nacelles (rotating and non rotating). We have just decided to make the two panels into one in the nacelle (where the panel in not rotating).”

Intermodal Control Cooling

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Intermodal Control Cooling:

intermodal control cooling

Intermodal systems are increasingly upgrading to automate their processes. Where there is automation, there is a need for control cooling. TECA supports automation by protecting crucial electronics in control cabinets. This minimizes process time and maximizes productivity.

In this example, heat-sensitive electronics are installed in truck processing terminals. TECA Model AHP-1800XEHC offers heat and cool modes and keeps the equipment within safe and operable temperatures.

Learn about the growing automation market and other hot topics; subscribe to our Quarterly eNewsletter.

 

AERONAUTICS

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Aeronautics:

aeronautics

A leading military and aeronautics contractor needed a cooling solution for an enclosure which would be on a high altitude vessel. The system would be exposed to high winds and ambient elements present in the altitude.

Working with the customer; TECA sales and engineering team designed a cooling solution with specific intake and exhaust characteristics along with custom paint and finish process that could withstand the conditions it will be exposed to.

PORTABLE SECURITY EQUIPMENT

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Portable Security Equipment:

portable security equipment portable security equipment

 

Site monitor and security equipment for oil fields and transfer stations needed more security. A portable enclosure housing cameras, WI-FI access, antennas and a Mac Mini computer inside leveraging the Mac platform to provide virtually instant access, hi speed, via “Wild Blue”. The system will be like a watchdog that they can strap on wherever they need the monitoring.

With a slight modification an AHP-1200XE thermoelectric cooler provided the best solution while keeping the NEMA-4 rating of the enclosure.

RUGGEDIZED MILITARY APPLICATION

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Ruggedized Military Application:

ruggedized military application

Sometimes it just takes a long time to get to the heart of a problem. AHP-1200X “quick quote” for two thermoelectric air conditioners came into our sales team. It was responded to and followed up. The application was reviewed, a quote was made and an order placed.

Only after did we learn that the hard requirements they were looking for were:

  1. Dual adjustable temperature control (heat and cool)
  2.  28 VDC operation and
  3. Military environment.

Fortunately the selections within TECA’s enclosure air conditioner family are large. The military Contractor borrowed a unit from TECA’s loaner stock and based on that success, placed an order. It was then that we found a problem.

It seems that the application was to cool some sensitive electronics out on a 200 meter DC input which caused droop in the input which in turn caused a ringing in the circuits. The new digital monitors being used were susceptible while the older tube monitors had no issue.

Working with the customer it was determined that by changing the controller to a ruggedized PWM controller all problems were solved.

MILITARY PROJECTOR

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Military Projector:

military projector

 

A ruggedized enclosure for a military video projector caused excessive heat to build up from the high wattage bulb.

A more rugged version of TECA’s AHP-1200FF thermoelectric cooler / solid state air conditioner is used by military to cool a projector.

For detail information such as inlet and outlet air temperatures etc…. open the PDF file.

RUGGEDIZED FOOD PROCESSING

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Ruggedized Food Processing:

Ruggedized Food Processing Ruggedized Food Processing

 

The maker of some of our favorite corn chips used TECA’s AHP-1200X for years in severe hose down environments.

They now had a similar requirement where they wanted to minimize any cleaning and were willing to entertain a liquid cooled LHP-1200XE solid state air conditioner. The unit fit into the same area and footprint as its air cooled cousin and provided greater cooling capacity. This customer added a valve on the water inlet to provide water flow only when cooling was required.

The units have been in service for years.

Fire Safety Switches & Alarm Enclosure

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Safety Panel Cooling:

Saftey panel cooling
Fire Safety Switches & Alarm Enclosure

TECA provides standard off the shelf as well as custom designs to meet the needs of the end user. Alarm enclosures can be exposed to some of the harshest conditions like the extremes of live-fire heat and hose-down. The alarm enclosure pictured here is for fire safety and switches. The transparent plastic enclosure is accessible and secure while being cooled to desired temperatures under harsh firefighting conditions. In this example TECA provided custom modifications to provide for redundancy and mounting requirements specified by the end user.

Contact teca@thermoelectric.com to inquire about custom designs for your needs. Our friendly sales team looks forward to hearing from you!

 

MILITARY COMMUNICATIONS

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Military Communications:

military communications

A branch of the US military had a need for cooling a small enclosure containing a critical voice communication system. The shipboard system had to be resistant to salt water corrosion as well as pass stringent shock and vibration testing.

Modifications to TECAs AHP-300X solid air conditioner allowed the unit to meet specializing and air flow requirements and pass these tests. The challenge was to overcome the small available space both inside and outside the enclosure. The heat sinks were turned so that the heat rejection air flow and internal cold side air flow moved in different directions.

This unit is a prime example of how flexible Team TECA is when customer needs require customization of standard products.

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