Answer to Question #158118 in Mechanical Engineering for kerem

Question

The water enters a pipe with an inner diameter of 40 cm and a length of 15 m at a temperature of 20C with a flow rate of 0.1 kg / s. Calculate the required pipe surface temperature and the amount of heat transferred to the water so that the liquid water can exit this pipe, whose surface is kept at a constant temperature, at a temperature of 60 C

Answer 1

q = mC_p$\Delta$ T

q = 100 g x 4.2 J/(g C) x (60 C - 20 C) = 16 800 J =16.8 kJ