aman1:
square plate heater (size 15 cm x 15 cm) is inserted between two slabs. Slab A is 2 cm thick (k = 50 W/mK) and slab B is 1cm thick (k = 0.2 W/mK). The outside heat transfer coefficient on both sides of A and B are 200 W/m2K and 50 W/m2K respectively. The temperature of surrounding air is 25°C. If the rating of heater is 1 kW, find. (i)Maximum temperature in the system (ii)Outer surface temperature of two slabs
SemiDefinite:
diagram? or other visual?
imqwerty:
|dw:1620458984286:dw| The system forms a parallel circuit. You have the formulas; use them to get those resistance values. Calculate equivalent resistance, get T_h. Figure out how much heat goes towards slab A and the temperature after the resistance R_a would be your outer surface temp for slab A. Similarly, you can find the outer surface temp for slab B.
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