Lecture 38 Examples

# Lecture 38 Examples - mm with a conductivity of 1.4 W/m-K...

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Example: An electric resistance heating lamp can be modeled as a rod, 0.5 m long and 0.5 cm in diameter, through which 400 W of electric energy is distributed. Assuming that the surface has an emissivity of 0.9 and neglecting any incoming radiation, what will the rod s surface temperature be?
Example: Consider the constant, steady-state transfer of energy from a warm room at 20 °C inside a house to the colder ambient temperature of -10 °C through a single-pane window. The glass pane has a thickness of 5
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Unformatted text preview: mm with a conductivity of 1.4 W/m-K and a total surface area of 0.5 m2. Assume the inside air is largely stagnant while the outside air is often windy. If the outer glass surface temperature is 12.1 °C calculate the rate of heat transfer through the glass and the outside convective heat transfer coefficient....
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