The pipe lengths pipe size are shown in the figure What is t
     The pipe lengths, pipe size, are shown in the figure. What is the flow rate between each junction?  C = 120  Heat Exchanger (H_x) 30 Q^2  Head loss = 10 psi   
  
  Solution
flow rate = 22/7 * pipe diameter^2 * veocity
head loss = 10 psi
10 psi = 0.0689476 N/mm^2
flow rate = 22/7 * 152.4^2* 0.0689476
= 5018 mm/s

