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1. |
A 0.10 cm diameter and 15 cm long wire has been laid horizontally and submerged in water at atmospheric pressure. The wire has a steady state voltage drop of 14.5 V and a current of 42.5 A. Determine the heat flux of the wire.The following equation applies for water boiling on a horizontal submerged surfaceH = 1.54 (Q/A) 0.75 = 5.58 (d t) 3 W/m2 K where Q/A is the heat flux rate in W/m2 and d t is the temperature difference between surface and saturation |
A. | 0.75 = 5.58 (d t) 3 W/m2 K where Q/A is the heat flux rate in W/m2 and d t is the temperature difference between surface and saturationa) 1.308 * 10 8 W/m2 |
B. | 1.308 * 10 7 W/m2 |
C. | 1.308 * 10 6 W/m2 |
D. | 1.308 * 10 5 W/m2 |
Answer» D. 1.308 * 10 5 W/m2 | |