A steel bar, (25 mathrm{~mm}) in diameter and (300 mathrm{~mm}) long, with an emissivity of 0.85 ,

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A steel bar, \(25 \mathrm{~mm}\) in diameter and \(300 \mathrm{~mm}\) long, with an emissivity of 0.85 , is removed from a furnace at \(455^{\circ} \mathrm{C}\) and suddenly submerged horizontally in a water bath under atmospheric pressure. Estimate the initial heat transfer rate from the bar.

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Ali Khawaja

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