Vacuum Insulation Demo with Schlieren & Thermal Imaging

Patented vacuum technology delivers high performance insulation for cryogenic and high temperature applications

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Creating visual demonstrations for high-performance thermal insulation can be a challenging process. Heat can be a difficult thing to lay your eyes on! Luckily, we can visualize heat flow using some interesting optical systems.

Schlieren imaging illustrates heat flow by observing small changes in the refractivity of air.

Thermal imaging locates heat by capturing infrared radiation.

This video includes two demonstrations comparing the performance of Insulon® advanced vacuum insulation to single-walled, non-insulated tubes and canisters. All of the tubes and cans in the video below are made with stainless steel, a durable and corrosion-resistant material.

In the first demo, we run hot air (650°C / 1200°F) through a 15-cm Insulon® vacuum insulated tube and a single-walled, non-insulated tube. Insulon® Technology retains heat inside the vacuum insulated tube, conserving energy and drastically reducing external surface temperature.

In the second demo, we allow liquid nitrogen (-196°C / -321°F) to evaporate from an 8-cm Insulon® vacuum insulated canister and a single-walled, non-insulated canister. The Schlieren and thermal imaging visualizations illustrate the rapid rate at which liquid nitrogen evaporates from the unprotected canister. The Insulon® vacuum insulated canister reduces the rate of boil-off, reducing evaporative material losses, and conserving liquid nitrogen.

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