Calculate the (a) Rate of flow in the pipe system using the Bernoulli's Equation. And (b) Pump power needed to drive the flow (in hp). While neglecting minor and frictional losses of a large water reservoir was constructed to service an upland village. To reach the village, water is drawn from the reservoir by an 80% efficient pump, and through two pipes connected in series with 12-inches and 6 inches diameters. A piezometric tube was installed to monitor the pressure at the end of the larger pipe. Pressure head at Point A is 20 ft.

Q: water pump at elevation 46 m. is used to bring up 250 gpm of water from a river (elev. 45 m.) to…

A: Discharge is 250 gpm Elevation of reservoir is 100 m

Q: The water is passed through a steel pipe with a diameter of 23 cm (rough height 0.046 mm) out of the…

A: Given, D = 23 cm or 0.23 m  L = 200 m

Q: 3. A pump draws water at 300 liters per second from reservoir A and lifts it to reservoir B as…

A: Given data: Discharge=300 l/s Head loss at A=20*velocity head in 200 mm dia Head loss at…

Q: A pump draws water from reservoir A and lifts to reservoir B. Points 1 and 2 are points just before…

A: Given, Discharge, say Q = 15 L/s = 0.015 m3/s [1 m3 = 1000 L] Diameter of pipe at 1, D1 = 150 mm =…

Q: A pump is used to lift 120 L/s of water at 10°C from a river to a storage tank that has a free…

A: Given, Q = 120 L/s or 0.12 m3/s D = 350 mm or 0.35 m  L = 1200 m  e = 0.02 mm

Q: A 10 ft by 15 ft rectangular cistern (storage tank for rainwater) has its top 30 ft below ground…

A: Given, Tank dimensions = 10 ft x 15 ft x 30 ft  Unit weight (γ) = 62.4 pcf

Q: Neglecting losses, calculate V2 (ms) of water existing the nazzle D1 = 10 cm D2 = 2.5 cm P1 = 1600…

A: Given: The diameter D1 is 10 cm. The diameter D2 is 2.5 cm. The pressure P1 is 1600 kPa. The…

Q: If water is pumped from reservoir 1 to reservoir 2 through a 20 cm pipe with a length L1=70 m, and…

A: The expression for velocity in pipe is given as V=QA Substitute the value in above expression V=0.15…

Q: 10. A fire pump delivers water through a 300 mm main hydrant to which is connected a cotton…

A: Q = 20 L/s or 0.02 m3/s HL1 = 0.8 mHL2 = 3.1 mHL3 = 2.5m

Q: 1. A 40-cm straight pipe is used to carry water at 20°C from one reservoir to another reservoir that…

A: Assume friction factor as 0.015so,Apply Bernoullis theorem…

Q: simple solution is needed

A: The objective of the question is to determine the horsepower that must be supplied at the hydrant to…

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.