Compute the total pressure loss for each run of the duct system shown. The ducts are round cross section and all fittings are shown. Assuming that a fan is to be placed in the location labeled Plenum, identify an appropriate fan based on the flowrate and pressure required. You will need to locate information from manufacturers for this. Briefly justify your decision. Plenum 12 in. (30 cm) 25 ft (7.6 m) 20 ft (6.1 m) 10 ft (3 m) 10 in (25 m) 20 ft (6.1 m) 12 ft 12in (3.7 m) (30 cm) 20 ft (6.1 m) 300 cfm (0.142 m/s) 40 ft (12.2 m) 500 cfm (0.237 m/s)