The base plate of an iron is 0.6 cm thick. The plate is subjected to 100 W of power (pro...

The base plate of an iron is 0.6 cm thick. The plate is subjected to 100 W of power (provided by resistance heaters inside the iron, as shown in Figure P13–15), over a base plate cross-sectional area of 250 cm², resulting in a uniform flux generated on the inside surface. The thermal conductivity of the metal base plate is k = 20W/ m-° C. The outside ambient air temperature is 20 ° C with a heat transfer coefficient of 20W/m²-° C at steady-state conditions. Assume one-dimensional heat transfer through the plate thickness. Using three elements, model the plate to determine the temperatures at the inner surface and interior one-third points.