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Thermal Stability on the surface of passive refrigeration

Can hold temperature more consistently than gel packs or fluid filled plastic bottles

THERMABRICK®, has the following properties when subjected to the below listed conditioning sequence:

Conditioning:

THERMABRICK® was conditioned at -19 ˚C for 48 hours prior to measurement.The thermal chamber was conditioned at 25˚C and 50% humidity. Bricks were placed in a vertical position to observed better visual heat transfer. An IR camera was placed 1 meter away to capture the images.

Equipment:

FLIR Camera, TEMPTALE Sensors

Thermabrick® on left and Plastic Fluid Bottle on right side
Thermabrick® on left and Plastic Fluid Bottle on right side
Thermabrick® on left and Plastic Fluid Bottle on right side
Thermabrick® on left and Plastic Fluid Bottle on right side
Thermabrick® on left and Plastic Fluid Bottle on right side
Thermabrick® on left and Plastic Fluid Bottle on right side

Time Lapse of the thermal images: 2hrs

Discussions and Data Analysis:

THERMABRICK® keeps a more uniform temperate distribution on the measured surface during the product testing trials.

The use of IR imaging shows that multiple equilibriums exist inside of both the THERMABRICK® and the fluid filled plastic bottles.

Due to the multiple equilibriums observed, surface thermal imaging may not be the optimal technique to effectively quantify the thermal profiles of the passive refrigerants.

To compensate for the observed multiple equilibriums that exist inside of the test specimens, TEMPTALE sensors were used in conjunction with the IR measurements to graphically depict the temperature profiles in specific locations during the experiment. These sensors show a more accurate and precise targeted behavior of the heat transfer from the passive refrigerants to the ambient conditions.

What the TEMPTALE sensors show in these product testing trials, is that the difference between the top and bottom of the THERMABRICK® and fluid filled plastic bottle are as follows:

Conclusion:

The surface temperature of the THERMABRICK® used in the product testing exhibited a more uniform temperature across the surface and held a more consistent temperature longer than the fluid filled plastic bottle.

See time and temperature data plotted below from the sensors.

Ambient Laboratory Conditions 25˚C and 50% | Fluid Filled Plastic Bottle vs. THERMABRICK®

EXPLORE OTHER TEMPRECISION® Properties

thumb_01_60_60Reliability you can depend on

Dimensional Stability of Products
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Thermal Stability on the Surface of Passive Refrigeration
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Absorbing PCM’s
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Will not Melt or Lose all of the Fluid if Compromised
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Customizable to any Shape or Size
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Can Absorb with High Efficency
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Thermal Conductivity
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Non-Toxic
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Maximizing the Internal Volume
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