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4.4.10. Using computer software (e.g., EPANET or your own spreadsheet program), determine the flow rate and head loss in each cast-iron pipe in the network shown in Figure P4.4.10. The demands on the system are at junctions C (0.030 m³/s), D (0.250 m³/s), and H (0.120 m³/s). Water enters at junctions A (0.100 m³/s) and F (0.300 m³/s). The lengths and diameters of the pipes are provided in the table below. As with all computer programs, the results should be checked for accuracy. Spot check a few junctions to see if there is mass balance. Check one or two loops to see if the energy balances. (25 points) LA OF Pipe AB FA BC BD DE EC FG GD GH EH A 1 Length (m) 1,200 1,800 1,200 900 1,200 900 1,200 900 1,200 900 QD B D G Diameter (m) 0.25 0.35 0.20 0.35 0.40 0.20 0.35 0.35 0.20 0.25 2 3 E H Qc Он

Fig: 1