2. In the figure shown, a liquid is pumped from reservoir A to tank B by a 12 hp pump having an efficiency of 80%. Assume that the rate of flow is 38 lit/s and the head loss to be 1.8m of the liquid, determine the specific gravity of the liquid. el 25m P = 30 kPa el 15m A
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- The water system in a suburban area consists of an old 200mm pipeline 760m long which conveys water from a pump to a reservoir whose water surface is 107m higher than the pump. Water is pumped at the rate of 0.07 m3/s. Determine the horsepower saved by replacing the old pipe with a new 250mm pipe. Assume the value of f as equal to 0.022 and 0.033, respectively, for the old and new pipes. Neglect losses of head except friction head show the diagram and complete solution. Need ASAP. Thank youThe pump in the figure discharges water at 60 liters/sec. Neglecting losses and elevation changes.Assume unit weight of water is 9.81 kN/m³. Determine the mechanical efficiency of the pump if thepower input recorded is 120HP.P2=409 kPaD2-4cm 091.5% 82.5%90.4%95.8%PP₁=125 kPaD₁=10cm ØWater flows freely from the reservoir though a 57.95 mm diameter pipe at the rate of 6.1 L/s. If the head lost in the system is 11.32 J/N, solve for the elevation of the water surface in the reservoir. Round your answer to 3 decimal places.
- A centrifugal water pump is tested under its design flow rate Q=250 m/hr. The static pressure at the suction and discharge end of the pump are measured 1.2 bar and 8.5 bar respectively. The suction pipe is 10"- 40 and the discharge pipe is 8"- 40. The energy consumed by the pump during a test period of 30 minutes is 48.5kwhr. The geodetic head difference between suction and discharge end are 0.25m Detemine the useful head of the pump, the overall efficiency and the energy cost for pumping 10,000 m3 of water under the test operating condition. Assume nmotor-95%, Density of medium=998 kg/m-Convert the following air pressure readingsfrom cm H2O to Pa.a. 1.5 cm H2Ob. 3.7 cm H2OA hydraulic jack contains 2.0 litres of oil as the working fluid. The compressibility of the oil is 1.98 × 10^-10/ Pa. Given that,compressibility of a liquid = 1/ bulk modulusof the liquid Calculate the absolute decrease in the volume of the oil when it is under a constant pressure of 1.50 × 107 N/m^2.
- The pipe flow in the following figure is driven by pressurized air in the tank. The flow rate in the pipe is 50 cu.m./hr of water. Assume friction factor of the pipe f=0.014 and pipe diameter of 50mm. Calculate the needed pressure in the tank to provide the given flow rate, in kPa. Choices 1710, 1688, 1693, 1702A fire hose has 100 mm diameter which reduces to a 20 mm nozzle discharging at 10+X m/s. (X= 0) Calculate the following: a) How high the water can reach if the nozzle is aimed vertically?b) What is the pressure inside the hose?c) How much extra force will be created at the reducer due to velocity change?A liquid of specific gravity of 1.75 flows in a 6 cm horizontal pipe. The total energy at certain point in the flow is 80 J/N (joules/newton). The elevation of the pipe above the fixed datum is 2.6 m. If the pressure is 75 kPa. Determine the velocity of flow in m/s. A.23.86 b.32.45 c.37.85 d.42.25l
- The water flow of 35,000 Liters/min was developed into a booster station with a pump installed rated as follows: Pressure at Discharge side= 4.18 bars, 850mm above the pump C.L Suction Pressure= 220mmHg vacuum , 425mm below the pump C.L Pipe Dia @ suction=16 inches and Pipe Dia @ Discharge 12 ½ inches. 1. Draw the illustrative diagram 2. Calculate the Head at discharge, Velocity Head, Elevation Head and the Total Head of the Pump.An elevated water tank consists of an upper cylindrical part (4.88 m in diamwter and 6.10 m high) and a lower hemispherical part, at the lowest point of which is an orifice 310 mm in diameter (C=0.60). If, at time t=0, the tank is full of water, when will the water level drop down 6.71m, after opening the orifice? 35 seconds 415 seconds 235 seconds 260 secondsDetermine the diameter of an orifice that permits a tank of horizontal crosssection 1.5m2 to have its liquid surface draw down at the rate of 160 mm/sfor a 3.35-m head on the orifice. Use C=0.63.