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Heat is uniformly generated at the rate of 2 x 105 W/m³ in a wall of thermal conductivity 25 W/mK and thickness 60 mm. T
Posted: Sun Jul 10, 2022 11:37 am
by answerhappygod
- Heat Is Uniformly Generated At The Rate Of 2 X 105 W M In A Wall Of Thermal Conductivity 25 W Mk And Thickness 60 Mm T 1 (81.51 KiB) Viewed 37 times
Heat is uniformly generated at the rate of 2 x 105 W/m³ in a wall of thermal conductivity 25 W/mK and thickness 60 mm. The wall is exposed to convection on both sides, with different heat transfer coefficients and temperatures as shown. There are straight rectangular fins on the right-hand side of the wall, with dimensions as shown and thermal conductivity of 250 W/mK. a) What is the maximum temperature that will occur in the wall? b) What is the efficiency of the fins? h₁ = 50 W/m².K Too,15 = 30°C k= 25 W/m-K à = 2 x 105 W/m³ 2L = 60 mm L₁= 20 mm + 1 = 2 mm 28= 2 mm k,= 250 W/m-K h₂ = 12 W/m².K T∞,2 = 15°C