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GATE Mechanical Engineering (ME) 2013 Solved Paper

Question Numbers: 60-61

Water (specific heat, C_p = 4.18 kJ/kgK) enters a pipe at a rate of 0.01 kg/s and a temperature of 20°C. The pipe, of diameter 50 mm and length 3 m, is subjected to a wall heat flux

q_{w}^{\prime\prime}\;\; \text{in}\; \text{W/m}^2

Question : 61 of 65

Marks: +1, -0

q_{w}^{″} = 5000

, and the convection heat transfer coefficient at the pipe outlet is 1000 W/m²K, the temperature in °C at the inner surface of the pipe at the outlet is

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