\( \mathrm{kg} / \mathrm{m}^{3}, \mathrm{C}_{\mathrm{p}}=477 \mathrm{~J} / \mathrm{kg} \cdot{ }^{\circ} \mathrm{C} \), and \( \mathrm{a}=3.9510-{ }^{6} \mathrm{~m}^{2} / \mathrm{s} \) ) has a e temperature of \( 653 \mathrm{~K} \) when the time is \( 30 \mathrm{~min} \). Dete nount of heat transfer per unit length of the rod whe anding medium temperature is \( 25^{\circ} \mathrm{C} \) with an average ction heat transfer coefficient of \( \mathrm{h}=60 \mathrm{~W} / \mathrm{m}^{2} \cdot{ }^{\circ} \mathrm{C} \) usin eisler charts
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Long cylindrical steel rods $\left(\rho=7833 \mathrm{kg} / \mathrm{m}^{3}$ and \right. $\left.c_{p}=0.465 \mathrm{kJ} / \mathrm{kg} \cdot^{\circ} \mathrm{C}\right)$ of $8-\mathrm{cm}$ diameter are heat-treated by drawing them at a velocity of $2 \mathrm{m} / \mathrm{min}$ through an oven maintained at $900^{\circ} \mathrm{C}$. If the rods enter the oven at $30^{\circ} \mathrm{C}$ and leave at a mean temperature of $700^{\circ} \mathrm{C},$ determine the rate of heat transfer to the rods in the oven.
Long cylindrical steel rods $\left(\rho=7833 \mathrm{~kg} / \mathrm{m}^{3}\right.$ and $\left.c_{p}=0.465 \mathrm{~kJ} / \mathrm{kg} \cdot{ }^{\circ} \mathrm{C}\right)$ of $8 \mathrm{~cm}$ diameter are heat-treated by drawing them at a velocity of $2 \mathrm{~m} / \mathrm{min}$ through an oven maintained at $900^{\circ} \mathrm{C}$. If the rods enter the oven at $30^{\circ} \mathrm{C}$ and leave at a mean temperature of $500^{\circ} \mathrm{C}$, determine the rate of heat transfer to the rods in the oven.
(I) One end of a 56-cm-long copper rod with a diameter of 2.0 cm is kept at 460$^\circ$C, and the other is immersed in water at 22$^\circ$C. Calculate the heat conduction rate along the rod.
HEAT
Heat Transfer: Conduction
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