a)  A 30-cm diameter pipe conveys water at the rate of 106 L/sec. Determine the contraction head loss if the diameter is suddenly reduced to 15 cm. Compare this with the head loss incurred when the 15-cm pipe suddenly expands to 30 cm. b) With the same flow rate and geometry, determine the corresponding head losses (in % of the originally calculated in a) if a 15° confusor and a 15° diffuser are used to reduce the head losses

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Storm Sewers and Detention

The storm drains system transports rainwater or stormwater and other runoff from roads, parking lots, and roof downpipes directly to nearby creeks, rivers, or the sea without any treatment.