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AEROSPACE MANUFACTURING

Aerospace Manufacturing:

liquid chiller for aerospace manufacturing application

 

To meet an Aerospace manufacturing customer requirement TECA sales and engineering team modified a standard model chiller to meet a highly specialized demand of the application, including liquid cooling, 24 VDC input and wall mounting. This recirculating liquid chiller was developed for a customer who needed something similar to the TECA LHP-300CP chiller; but it had to be a liquid cooled liquid chiller – it had to be 24 VDC input – and it had to be mounted on the wall!

The application is X-Ray inspection of aircraft engine parts. Temperature controlled water is circulated through a heat exchanger which is keeping photo diodes nice and cool, assuring quality X-Ray imaging.

CUSTOM MILITARY LIQUID CHILLER

Military Liquid chiller:

Here’s another custom military application by TECA.

Military grade liquid chiller

 

The United State Navy needed a liquid chiller to circulate coolant and also meet strict military requirements. TECA developed a custom thermoelectric liquid chiller using MIL rated components. This is a liquid chiller for circulating chilled coolant as part of a tracking system on a NAVY ship.

Note that the chilled liquid circuit is effectively “sandwiched“ between two heat sinks with rugged Mil 901 fans. Wiring and electrics are housed in a NEMA-4X enclosure with an O-ring gasket seal. This unit is rated for shipboard use in salt-spray, shock and vibration.

MEDICAL

Medical Application:

medical cooler

The customer needed a compact thermoelectric cooling system to cool flow of fluid through removable membrane liquid jacket used in a mobile medical application. TECA’s sales and engineering team worked with the customer and developed the product you see in the pictures above for the exclusive use of our customer.

The application is medical and will be protected by patent. Thermoelectric cooling will be employed for effective cooling of the brain for emergency treatment of stroke victims.

CHILLING PROCESS INK

Chilling Process Ink:

Here’s the way they’re all supposed to work:
September: Initial contact: Need help sizing unit that can maintain a liquid temperature between 25 °C – 35 °C in ambient conditions of 15 °C – 40° C. I need a unit for testing ASAP. In conjunction with sizing a chiller, I am also trying to size a heat exchanger. I need chiller flow rate and output temperature. Please call to discuss details.

Read moreCHILLING PROCESS INK

BEVERAGE COOLER

Beverage Cooler application:

beverage cooler system beverage cooler TE cooler

 

The beverage cooler application challenge was to keep concentrated beverage container located next to a hot water tank cool in a high volume OEM application. TECA has the flexibility and resources to manufacture custom OEM thermoelectric cooler (peltier coolers) assemblies intended for use as part of a customer machine, apparatus, or system. This OEM assembly is made by TECA in production runs in the thousands. It is not ours, so to protect the privacy and identity of our customers we can’t give too many details here.

This assembly is part of a beverage service product which is shipped worldwide by a well known consumer products company. TECA furnishes the cooling “engine” which refrigerates the beverage product to be dispensed, and the OEM builds finished machinery in their own plants.

STIRRING COLD PLATE

Stirring Cold Plate:

A Peltier stirring cold plate was needed to cool liquid inside a standard 1000 ml plastic tank and maintain the class 100 clean room rating. They desired a custom designed thermoelectric stirring cold plate with integral variable stir speed control, temperature control, alarm and remote sense capability.

stirring cold plate stirring cold plate

TECA is glad to participate in custom and OEM product development. Over the years we have come up with some innovative and novel solutions for our customers. This product was developed from scratch for a start-up company in the field of pharmaceutical development. This TECA cold plate apparatus was designed and built for use in a clean room facility. The controls are ergonomic. The user can easily adjust controls for stir speed, timing and temperature even while wearing clean room garb and sterile gloves.

COOLING GAS FLOW

Cooling Gas FLow:

A potential customer expressed interest in a cooling/heating system for an aerosol flow tube envisioning a 1 inch OD, 0.875 inch ID stainless steel flow tube mounted inside a 2-2.5 inch ID pipe (likely also stainless steel and insulated on the outside) capable of controlling the tube at temperatures ranging from roughly 5 °C to 40 °C at an ambient temperature of 25-30 °C.  We are measuring the change in particulates in the air due to the temp change.

cooling gas flow cooling gas flow

Standard liquid chillers were first offered along with technical design assistance. The requirements led to direct contact cooling as being a good solution. Standard cold plate products and controllers were offered which led to this request for a custom package. “We would like to have the flow tube sandwiched between the cold plates with the temperature controller and power supplies attached in a similar manner so that we only need attach the temperature controller (the TC-3400 appears as if it will work) to a computer so that we can change the set points remotely.

Is any of this even possible or am I dreaming in Technicolor?” We advised him that the best dreams were in color. Preliminary design work was done and a quote prepared. Shortly thereafter an order was received; design documents were completed and sent to production. Less than 3 months after the initial contact the product was shipped. Several months later a follow up was made with this response.

“Things are doing really well. It does exactly what we wanted it to do, and is much more efficient and better than we hoped for. We’re very happy!

COOLING FLUID FLOW

Cooling Fluid Flow:

cooling fluid flow

A customer needed to cool high pressure flow of fluid in a single pass. Using expanded Aluminum foam and attaching it to the surface of AHP-301CP thermoelectric cold plate (peltier cold plate) provided a way to maximize the thermal contact surface and eliminated the need to complex fluid path and larger cold plate.

BEVERAGE COOLING IN A BARREL

Beverage Cooling in a barrel:

beverage cooling in a barrel beverage cooling in a barrel

Here’s an application that TECA’s engineering team was particularly excited about. Not because of the economics or the potential new business. Frankly we didn’t think the market was there. But as soon as they found out that a ½ barrel of beer would be needed for testing they were all over it. While none was ever sold, good lessons regarding contact methods and material stratification were learned. To see the result of the test click here.
We used an AHP-1200CP thermoelectric cold plate and a TLC-700 thermoelectric liquid chiller for testing purpose.

FLUID DISPENSING

Fluid Dispensing:

fluid dispensing

A leading manufacturer of fluid dispensing systems uses one of our Thermoelectric Cold Plate and Temperature Controller for controlling the fluid temperature of adhesives, sealants, lubricants and other materials in meter, mix and dispensing systems.
Unlike other larger, higher cost and less accurate heating and cooling devices, which use heater cartridges, refrigerant or water to heat and cool, these thermoelectric-effect temperature controllers use the Peltier-Seebeck effect to directly convert electrical voltage to thermal differentials. This effect, which is reversible, either heats or cools fluid materials with precision to the temperature set point. The compact Peltier thermoelectric device, temperature sensor and the temperature control is mounted to a manifold where the fluid passes through to be precisely heated, maintained or cooled.

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