CH ENGR 101B Quiz: HW5
9 Jan 2019
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[abet] an igloo is built in the shape of a hemisphere, with an inner radius of 1. 8 m and walls of compacted snow that are 0. 5 m thick. On the inside of the igloo the surface heat transfer coefficient is 6 w/m2 k; on the outside, under normal wind conditions, it is 15. The thermal conductivity of compacted snow is 15 w/m k. The temperature of the ice cap on which the igloo sits is -20 c and has the same thermal conductivity as the compacted snow. Ice cap tic: assuming that the occupants" body heat provides a continuous source of 320 w within the igloo, calculate the inside air temperature when the outside air temperature is t = - For instance, for very high wind conditions, the outside convection coefficient could double or even triple.
