2.6-2. Flow of Liquid in a Pipe and Mass Balance. A hydrocarbon liquid enters a simple flow system shown in Fig. 2.6-1-at an average velocity of 1.282 m/s, where A, = 4.33 x 10-³ m² and p, = 902 kg/m. The liquid is heated in the process and the exit density is 875 kg/m³. The cross-sectional area at point 2 is 5.26 x 10-3 m². The process is steady state. (a) Calculate the mass flow rate m at the entrance and exit. (b) Calculate the average velocity v in 2 and the mass velocity G in 1. Ans. (a) m, = m2 = 5.007 kg/s, (b) G, = 1156 kg/s m? %3D

1) Water is pumped from a storage tank through a tube of 3.0 cm inside diameter at the rate of 0.001 m³/s. What is the kinetic energy per kg water in the tube?

It is desired to have a laminar flow for the piping system shown below. The fluid flowing in the piping system is air at 70 °C. (Note: You must use the physical data from Perry's Handbook) a) Calculate the maximum allowable bulk velocity in m/s for pipes 1, 2, and 3 that will satisfy the statement above. The velocities obtained must satisfy the continuity equation. b) Calculate the Reynolds number of each pipe using the velocity values obtained earlier. c) Calculate the mass flow rate of the system (in kg/min). 3. 2 12-in. pipe 2-in. pipe 3-in. pipe 1/2-in. pipe