A freezer compartment is covered with a 3-mm-thick layer of frost at the time it malfunctions....
Consider the manufacture of photovoltaic silicon where a thin sheet of silicon is pulled from the pool of molten material very slowly and is subjected to an ambient temperature of T 627°C within the growth chamber. The silicon sheet is Wsi =85 mm wide and tsi =150um thick. A convection coefficient of h 7.5 W/m2.K is associated with the exposed surfaces of the silicon sheet when it is inside the growth chamber. Calculate the maximum allowable velocity of the silicon...
I asked this before, but the other person got the wrong answer. I tried to solve what they did wrong to get my answers correct, but to no avail. Please help me. (10%) Problem 9: A certain pond absorbs I 910 WIm for a time period of an hour from the sun. Assume that all of this energy is used to raise the temperature of the pond. The pond water fills a hemisphere of radius r 1.75 m and has...