A Standard polystyrene foam is used as thermal insulation for a small refrigerator. The foam has...
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A Standard polystyrene foam is used as thermal insulation for a small refrigerator. The foam has a thermal conductivity of 2-0.035 W/ m° C. It is suggested that the same thermal performance can be had with thinner walls (increasing the useful volume) by using a polymethacrylimide foam instead, which has a thermal conductivity λ= 0.028 W/m°C. By what factor can the wall thickness be reduced by this substitution while still maintaining the same thermal performance as before? (6 points) A Standard polystyrene foam is used as thermal insulation for a small refrigerator. The foam has a thermal conductivity of 2-0.035 W/ m° C. It is suggested that the same thermal performance can be had with thinner walls (increasing the useful volume) by using a polymethacrylimide foam instead, which has a thermal conductivity λ= 0.028 W/m°C. By what factor can the wall thickness be reduced by this substitution while still maintaining the same thermal performance as before? (6 points)
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Reducing Wall Thickness with Polymethacrylimide Foam The key to maintaining the same thermal perform... View the full answer
Related Book For
Smith and Roberson Business Law
ISBN: 978-0538473637
15th Edition
Authors: Richard A. Mann, Barry S. Roberts
Posted Date:
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