Conditioning of cooling bricks (PCM and ice)
We assist you in optimizing your packaging process by minimizing the time and energy required to condition cooling bricks for passive shipping containers.
When passive shipping containers are prepared for their shipping lane, they are filled with cooling bricks conditioned at specific temperatures. For example, some packouts require ice bricks conditioned at -20°C, others require PCM bricks at +5°C – there is a large variety of different conditioning temperatures. The cooling bricks are conditioned in refrigerators or cold chambers, both time and energy intensive processes. Depending on how the bricks are packed during conditioning, the outer and inner bricks reach their set point at different times, because the outer ones thermally shield the inner ones. Using our simulation tools, we can determine the optimal configuration to reach the temperature set point most efficiently. Also, we can determine the time required to reach the set point temperature for each brick, helping you to better plan your conditioning and optimize your packaging processes.
(a) Explosion sketch of a rack of PCM’s, packed between freezing panels at -25°C.
(b) Temperature of the freezing panels (red), and simulated temperature of six sensors placed at various positions between the PCM bricks.