Question

The handle of ladle used for pouring molten metal at

327⁰ C is 30 cm long and 2.5 cm x 1.5 Cm-mild steel bar stock K 43 W/mK. In order to reduce grip temperature, it is proposed to make a hallow handle of mild steel" plate 0.15 cm thick to the same rectangular shape. If the surface heat transfer coefficient is 14.5 W/m²K and the ambient temperature is 27° C, estimate the reduction in the temperature of grip. Neglect the heat transfer from inner surface outer hallow shape.​

Answer 1

Answer:

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