8-147 In a hydroelectric power plant, water at 20°C is supplied to the turbine at a rate of 0.55 m³/s through a 200-m-long, 0.35-m-diameter cast iron pipe. The elevation difference between the free surface of the reservoir and the tur- bine discharge is 140 m, and the combined turbine-generator efficiency is 85 percent. Disregarding the minor losses because of the large length-to-diameter ratio, determine the electric power output of this plant.

Q: Water enters a hydraulic turbine through a 35-cm-diameter pipe at a rate of 0.8 m3/s and exits…

A: Inlet diameter = d1 = 35cm Outlet diameter = d2 = 30cm Discharge = Q = 0.8 m3/s Pressure drop = hm =…

Q: A rectangular channel 2.0 m wide and 1.0 m deep carries a discharge of 4.0 m3/s. A horizontal datum…

A: Rectangular channel (B) = 2m Depth (y) = 1m Discharge (Q) = 4 m3/sec Datam height below channel bed…

Q: (A) A furbine develops 9000 kW when running at 10 r.p.m. The heud on the turbine is 30 m. If the…

A: Given: Initial power, P1 = 9000 kW Initial speed, N1 = 10 rpm Initial head, H1 = 30 m Reduced head,…

Q: Water from a reservoir is pumped over a hill through a pipe 90 cm in diameter, and a pressure of 200…

A:

Q: The turbine in the sketch has a flowrate Q = 100 m³/s and the outlet has a circular cross- section…

A: Solution: Given: Discharge Q= 100m3/s Diameter D=2m Total head HT= 100m Head Loss H=20m The…

Q: Glycerine (u= 1.5 Pa sec and P₁ = 1260 kg/m³) flows at a mean velocity of 5.0 m/sec in a 10 cm…

A:

Q: A turbine develops 9000 H.P. when running at 100 rmp. Head in the turbine is 30 m. If head is…

A:

Q: The power dissipation in each of four parallel branches is 1 W. The total power dissipation is (a) 1…

A:

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.