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Y = 1 X = 0
Assignment 4-Piping Systems II (Parallel Piping and Economic Pipe Diameter) 1. A horizontally laid 2 in. standard type K copper tube is 4 Yo m long and conveys Kerosene at a flow rate of 0.004X m³/s. (a) Determine the corresponding pressure drop. The pipeline is modified by adding a 450 long loop made of 1/2 in. standard type K copper tubing (Note: flow area in the back of the book is wrong, but diameter correct). If the resultant flow rate through the system is 0.0051 m³/s, what is the flow rate in each pipe? 2. Commercial steel pipe (schedule 40) conveys kerosene that ultimately is fed to a bank of diesel engines used to drive generators to produce electricity. The flow rate of kerosene is 0.001Y m³/s. Calculate the optimum economic diameter given the following conditions: (Note: If the flow is turbulent, you have to iterate, but if the flow is laminar, you don't have to iterate) a. C₂= $0.01/(kW.hr) b. C₁= $350/(m²4) c. n = 1.4 d. e. f. b = 0.01 90% of 365 days/yr F = 6.5 g. A = 1/(4 yr) h. η = 80%