During a heat treatment process, a 20-mm diameter cylindrical steel rod with a length of 200 mm was removed from a furnace when it reached a uniform temperature of 500°C and w as suddenly submerged horizontally in a water bath at atmospheric pressure. If the steel rod has an emissivity of 0.9, determine the boiling heat transfer coefficient and the total heat transfer coefficient when it was initially submerged in the water bath. Answers: 162 W/m2·K, 194W/m2·K
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