20. Heat and Temperature
Heat Transfer
20. Heat and Temperature Heat Transfer
17PRACTICE PROBLEM
A thermally insulated storage container has an outer layer made of 4.0 cm corkboard and an inside layer made of 2.5 cm thick fiberglass. Thermal conductivity, k for corkboard, and fiberglass are 0.043 W/m•K and 0.036 W/m•K, respectively. The inside temperature is 15.0°C while the external temperature is -8.0°C. Determine the rate at which heat flows through the container's wall per square meter.
A thermally insulated storage container has an outer layer made of 4.0 cm corkboard and an inside layer made of 2.5 cm thick fiberglass. Thermal conductivity, k for corkboard, and fiberglass are 0.043 W/m•K and 0.036 W/m•K, respectively. The inside temperature is 15.0°C while the external temperature is -8.0°C. Determine the rate at which heat flows through the container's wall per square meter.