Thermoelectric Air Conditioner Applications

ROBOTICS:

An industrial plant uses robots in its juicing and bottling process. The robots continuously overheat and shut off. The environment is dirty and 240 VAC is the only available input voltage.
peltier cooling
TECA’s AHP-1801X Air Conditioner offers dual voltage capability and a rugged hot side fan that can handle NEMA-4X and corrosive environments. The customer is able to use the built-in temperature controller to keep his robots at a cool 25C.

 

MILITARY:

The 2.4 Meter Mobile SATCOM Tactical Terminal (MSTT) is a lightweight, stand alone, trailer-mounted tri-band SATCOM terminal available to support worldwide, quick deployment satellite communications through military and commercial satellites. military air conditioner

It also uses a customized version of the solid state air conditioner AHP-1801X. It was designed and qualified for worldwide operation in tactical military environments.

 

ROOFTOP EQUIPMENT ENCLOSURE:

military cooling peltier cooler thermoelectric cooling

As of this writing, the system has been operating trouble free for over 90,000 hours.
Back in March of 2001 TECA Corporation engineering team set up a test to evaluate functionality and life of it’s then new XEseries of solid state thermoelectric air conditioners under real life out door environment conditions.
Model AHP-1800XEHC Heat/Cool air conditioner was chosen as a representative model.

 

WIND TURBINE:

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

 

STEEL MILL:

The steel company from Maryland had some enclosures with 4 drives each on some cranes. The high temperature in the steel mill was causing excessive shutdowns. Leaving the enclosure open in this sort of environment just wouldn’t do. Nor would conventional air conditioners survive the shake rattle and bake of the electrical enclosures on these overhead cranes. On top of all that the only power they had was a widely varying 250 VDC. Which we found out later had some very nasty spikes which caused everyone a few headaches. But the headaches were cured and the customized FHP-1500XE solid state air conditioners continue to run.

How could the company afford custom units? With a streamlined approach where design engineers and the end users actually communicate on a frequent basis with known goals, expectations and commitment from each end. TECA loves happy customers.

 

AERONAUTICS:

A leading military and aeronautics contactor 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.

military case cooler

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.

 

ANALYZER COOLING IN HARSH ENVIRONMENT:

harsh industry cooling

TECA’s Model AHP-1202XEHC Thermoelectric Air Conditioner provides accurate heating and cooling for the customer’s analysis machine. The environment is harsh: it is in a cement plant. The customer’s product quickly analyzes composition of raw materials, allowing for increased productivity. TECA’s AHP-1202XEHC provides reliable thermal management within a harsh environment. The AHP-1202XEHC has an industrial grade sealed fan and sealed hot side components, allowing for frequent wash down (NEMA-4). The solid-state construction is the perfect low-maintenance solution for hard-to-access areas. There are no filters to change and no moving parts except for the fans. TECA air conditioners use robust thermoelectric modules and boast a long service life.

 

FOOD PROCCESSING:

A European manufacturer of special equipment for processing fruits and vegetables needed to cool sensitive electronics on their line of produce-processing machines, which sort products by color, size and weight.
TECA Model AHP1200XE solid state air conditioners were selected.
The equipment in use is washed down frequently, so the Model AHP1200XE is ideal because it is designed to meet NEMA4 and suitable for wash-down environments, while it also carries the CE Mark.

 

RUGGEDIZED MILITARY APPLICATION:

Sometimes it just takes a long time to get to the heart of a problem. A “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:camera cooler

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 by clicking on the picture.

 

PAPER MILL:

The environment of a paper mill is hostile to most equipment. Could a thermoelectric cooler stand up to such conditions?
TECA Model AHP-1200X Solid State Air Conditioner is a perfect solution.thermoelectric cooling

This TECA model AHP-1200X was returned to TECA for evaluation, after over 120,000 hours of duty. It just did not seem to cool as much any more. As a matter of fact, it was originally put to work in 1992 cooling an electronic enclosure in a paper mill.

The customer was sure it needed to be replaced, but sent it back to us to see if anything could be salvaged. In our inspection we found that the hot side heat sink was fouled with 14 years of newsprint sludge. Once the goop was cleaned out and the fan was free to spin; the unit ran like a charm!

 

HARSH ENVIRONMENT APPLICATION:

 

peltier air conditioner TE cold plate thermoelectric cooling

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.

 

ALARM ENCLOSURE:

The alarm enclosure was for fire safety and switches. The transparent plastic enclosure was supposed to be accessible and secure while being cooled to desired temperatures under some of the harshest conditions, firefighting, where extremes of heat and harsh hose down conditions exist. The enclosure was selected already, load known, temperatures OK. Everything was fine except the closest stock unit didn’t quite fit and it needed a few extra bells and whistles to provide the redundancy needed. Taking the standard FHP-750XE air conditioner design, adding an extra circuit and modified sheet metal was all it took.

cabinet cooler cabinet coolers
 

KIOSK COOLING:

A company specializing in fleet management and motor pool software required multiple outdoor, self service kiosks to be placed in various environments throughout the USA. TECA's AHP-300XEHC thermoelectric air conditioner is an ideal solution, providing needed cooling to sensitive parts within the sun-exposed kiosk. The AHP-300XEHC air conditioner cools the kiosk without taking up much space and it is suitable for various environments including NEMA-4 enclosures. Heat/Cool is optional, as are external covers for aesthetic purposes. Whether space is restricted inside or outside your kiosk, TECA offers three mounting styles for kiosk cooling: Through, Internal and External.

 

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.

military cooler 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.

 

SURVEILLANCE:

Video cameras needed to function in an environment beyond their rated temperature range. One of our customers wanted to position cameras to observe a process from a location not safe for operators to go. The customer is a rubber manufacturer and the camera location was too hot for the cameras to work in. The customer had the cameras, but had no suitable enclosure, or cooling apparatus.

camera housing cooler camera cooling system

TECA adapted a tiny air conditioner based on Model AHP150XE to mount to a standard commercial enclosure. The package was completed by retrofitting the cameras with insulation and special cooling units. The design satisfied our customer’s needs to a “T”.

 

LONG-TERM COMMUNICATIONS COOLING, OUTDOORS:

THERMOELECTRIC COOLING THERMOELECTRIC COOLER

A common use for thermoelectric air conditioners is the cooling of electronics cabinets. These photos show an outdoor communications cabinet being cooled with a system of TECA air conditioners that have been customized for the end user. The units photographed here are over 12 years old, a testament to the reliability of TECA’s thermoelectric air conditioners. Also worth mentioning is the lack of maintenance that thermoelectric air conditioners require. With no moving parts except for the fans, no filters to change and no chemical coolants, TECA air conditioners are an ideal and environmentally friendly solution for remote areas.

 

LONG-TERM COMMUNICATIONS COOLING, OUTDOORS:

THERMOELECTRIC COOLING THERMOELECTRIC COOLER

A common use for thermoelectric air conditioners is the cooling of electronics cabinets. These photos show an outdoor communications cabinet being cooled with a system of TECA air conditioners that have been customized for the end user. The units photographed here are over 12 years old, a testament to the reliability of TECA’s thermoelectric air conditioners. Also worth mentioning is the lack of maintenance that thermoelectric air conditioners require. With no moving parts except for the fans, no filters to change and no chemical coolants, TECA air conditioners are an ideal and environmentally friendly solution for remote areas.

 

AVIONICS MAINTENANCE:

The task was to create a portable cooling system for diagnostic equipment to allow troubleshooting of avionics systems while still installed. Troubleshooting and diagnosing avionics problems is hard enough on the bench. To save valuable time, technicians would rather get it done while the electronics are still in the aircraft. Also, under harsh environments, it is difficult to keep cutting edge electronics functioning the way they should.Transport case cooling

 

When it came to the type of portable cooling for the diagnostic equipment required for these jobs; a navy contractor came to TECA for the solution. We helped design and build the solution shown in its prototype form around the portable enclosure. TECA completed the project on a tight schedule, which called for teamwork and attention to detail.

 

COMPACT MILITARY AIR CONDITIONER:military peltier cooler

The contact to engineering read pretty much like this:
Wants A/C, 17.5 x 5.5 footprint, 150 W @ 0 Dt, He is in a hurry, Desert Application
Unit will require transport in, then it will sit for months, then it will go somewhere else
Single set point 35 C control?
Size, can go 6" on the outside, told him about AHP-1200, he said they didn't choose because of no DC, I said we'd make it DC, He's off checking if it'll fit now.
Nope, won’t fit, air flows are bad
24 VDC
running off generator
NEMA 4X
Mil grade fans
50 C max
urgent need
A little more than month later the order was placed and about 6 weeks after that a batch of custom air conditioners was being shipped.

 
 
   
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