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Heat shielding calculation

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How much more effective will a double layered heat shield (.1mm stainless steel outer shell (facing radiant heat source), .5 mm inner aluminum shell, and 4mm air gap) be at blocking thermal radiation then a single 2mm thick sheet of aluminum? (assume both heat shields are same size and in same environment.

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https://brainmass.com/physics/radiation/heat-shielding-calculation-595398

Solution Summary

This solution discusses the effectiveness of blocking thermal heat with a single-heat shield or a double-layered heat shield (with an air gap). It is concluded that the double-layered heat shield with the air gap in between the layers of stainless steel and aluminum is extraordinarily effective in blocking the thermal heat.

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