Question

A cylinder of 0.25 m diameter is initially at 1450\deg C. The surface is exposed to BL3 CO1 convection at 33\deg C with h = 75 W/m^2-K. Determine the temperature at 0.125 m from the centre after 60 minutes. (Assume, density = 2800 kg/m^3 specific heat: 900 J/kgK, thermal conductivity = 2.5 W/m-K).

Name: a cylinder of 025 m diameter is initially at 1450deg c the surface is exposed to bl3 co1 convection at 33deg c with h 75 wm2 k determine the temperature at 0125 m from the centre after 60 mi 83253
Uploaded: 2024-04-05T11:16:25-08:00
Duration: 5 min 3 s
Channel: Narayan Hari
Description: a cylinder of 025 m diameter is initially at 1450deg c the surface is exposed to bl3 co1 convection at 33deg c with h 75 wm2 k determine the temperature at 0125 m from the centre after 60 mi 83253

          A cylinder of 0.25 m diameter is initially at 1450\deg C. The surface is exposed to BL3 CO1 convection at 33\deg C with h = 75 W/m^2-K. Determine the temperature at 0.125 m from the centre after 60 minutes. (Assume, density = 2800 kg/m^3 specific heat: 900 J/kgK, thermal conductivity = 2.5 W/m-K).

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University Physics with Modern Physics

Hugh D. Young 14th Edition

Instant Answer

Solved by Expert Narayan Hari

04/05/2024

Step 1

The Biot number (Bi) is calculated using the formula: \[ Bi = \frac{hL_c}{k} \] where \( h \) is the convection heat transfer coefficient (75 W/m²-K), \( L_c \) is the characteristic length, and \( k \) is the thermal conductivity (2.5 W/m-K). For a cylinder, the Show more…

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A cylinder of 0.25 m diameter is initially at 1450\deg C. The surface is exposed to BL3 CO1 convection at 33\deg C with h = 75 W/m^2-K. Determine the temperature at 0.125 m from the centre after 60 minutes. (Assume, density = 2800 kg/m^3 specific heat: 900 J/kgK, thermal conductivity = 2.5 W/m-K).