a hollow styrofoam cubical box, which is perfectly insulated at the bottom, has a length of 2-m on each side and an inside surface temperature of -10 C. What should be the conduction thermal resistance at the top surface of the box in K/w if the heat load inside the box must be kept less than or equal to 500 W when the outside surface temperature of the box is 35 C? the thermal Conductivity of styrofoam is 0.030 W/m

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Conduction and Convection

When energy travels from one object to another it is said to have undergone heat transfer. Heat transfer is nothing but the transfer of thermal energy or internal energy from one thing to another, like e.g., when a vessel with water, kept on top of a burner, heats up because of the flame underneath it.