What is the value of the emissivity of the radiating cube

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Reference no: EM13553431

Two cubes of equal total surface area (A = 0.04 m2) are at the same elevated temperature, 82 ºC, in a room at 21 ºC. Object #1 loses its heat by radiation to room temperature. Its emissivity is unknown. Object #2 loses its heat by conduction to room temperature through a container of thickness 0.019 m and thermal conductivity k=0.084 W/(mºC) (the area of the container is equal to the area of the cube). Both cubes are losing heat at the same rate at this elevated temperature. What is the value of the emissivity of the radiating cube?

Reference no: EM13553431

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