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  ${\mathit{q}}_{\mathit{w}}^{\mathit{″}}\mathit{i}\mathit{n}\frac{\mathit{W}}{{\mathit{m}}^2}$.