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In a chemistry plant, through a horizontal smooth pipeline with a diameter of 0,3 m, a fluid with density and viscosity of 769 kg/m3 and 0,0007 Pa-s, respectively is flowing with a flow rate of 0,009 m3/s. Disregarding the pipe entrance effects and treating flow being steady, uniform and incompressible; a) Find the magnitude of mean velocity (in m/s). (Please use only 3 decimal digits.)  b) Find Reynolds number. (Please do not use any decimal digit.) c) Find the magnitude of friction factor. (Please use 4 decimal digits.)

A Kaplan turbine has the following specifications: H =25 ft., N=400 rpm; power = 650 hp. If the efficiency of the unit is 90%, estimate (a) the flow rate, (b) approxi-mate diameter of the runner, (c) turbine setting to avoid cavitation if the location is at sea level, and (d) turbine setting to avoid cavitation if the location of the unitis at an elevation of 5000 ft. The local temperature is 60°F.Ans: (a) Q=254 cfs; (c) Hs=5.8 ft.; (d) 0.12 ft.

A 0.30 m X 0.40 m branch duct leaves a 0.30 m X 0.60 m main duct at an angle of 60°. The air temperature is 20°C. The dimensions of the main duct remain constant following branch. The flow rate upstream is 2.7 m3/s. Find the pressure downstream in the main duct if at 20°C, the mass per unit volume is 1.2041 kg/m3. Group of answer choices 436 Pa 634 Pa 643 Pa 346 Paplease show full soluton for review and analysis

1) Affinity laws apply to both pumps and turbines. True or False 2) A pelton wheel is used to produce hydroelectric power. The average radius of the wheel is 1.83 m, and the jet velocity is 100 m/s from a nozzle of exit diameter equal to 10 cm. What is the volume flow rate through the turbine in m3/s? a) 263.02 b) 0.801 c) 78.54 d) 0.785 3) A water pump increases the pressure of the water passing through it (see picture below). The flow is assumed to be incompressible. If the outlet diameter is less than inlet diameter, which of the following about outlet and inlet fluid velocity is correct? a) Vout < Vin b) Vout > Vin c) Vout = Vin d) cannot be determined

please answer A pump impeller rotating at 1400 rpm has an outside radius of 21 cm, the vane outlet angle β2 is 158° and the radial velocity at the outlet Cr2 is 4 m/s. Assuming radial flow at inlet, draw the theoretical outlet velocity diagram and calculate the various velocities and angles.( A)What is the theoretical head Ho, in meters, assuming that the circulatory flow coefficient η∞ = 1.,(B)In the preceding example; assume a deviation of 10° applied to β2 due to circulation after the modern theory. The flow is 30 lit/s. After drawing/illustrating the velocity diagram, find the theoretical head Ho, in meters, assuming radial flow at inlet, neglecting the deviation in inlet velocity diagram. (c)Assuming that the mechanical efficiency ηmech = 0.95, the hydraulic (or manometric) efficiency ηman = 0.8, find the required break horsepower to drive the pump.

What is the proper model flow rate?

Data: Hp2,3 = 2 m; A3 = 20 cm²; A₂ = 1 cm²; Hp0,1 = 0.8 m; NB= 74%(pump efficiency) To determine: a) the flow (L/s); b) the area of ​​section (1) (cm³); c) the power supplied by the pump to the fluid.

Aiming a 1.69 in diameter garden hose straight up, forms a “bubbler fountain” that you could easily drink from (but you shouldn’t because of bacteria, etc.). The water flows out the hose and down the sides. If the water has a density of 63.1 lbm/ft^3 and a viscosity of 0.0119 g/cm*s, what is the thickness of the water film (df) (in cm) if the flow rate of water is 6.42 in^3/s? For simplicity, assume the film is thin enough that you can use rectangular coordinates.

Air (diatomic, MW = 28.8664 g/mol) at 1.7 atm gage (where Pam = 1 atm) and 15°C enters a 70-m long horizontal 75-mm-ID steel pipe (€ = 4.6(10) m). The velocity at the entrance of the pipe is 60 m/s. Assuming isothermal flow, what is the absolute pressure (atm) at the discharge end of the line? Use Churchill equation for the friction factor.

Water flows through a rubber hose 2 cm in diameter at a velocity of 4 m/s. (a) What must be the diameter of the nozzle in order that the water emerge at 16 m/s? (b) What is the rate of flow in cu.m per minute?

Provide clear and complete solution as well as diagram. The discharge pressure of an air compressor is 8 times the suction pressure. If volume flow at suction is 0.23 m3/s, what is the compressor power assuming n equals 1.35 and suction pressure is 97 kPa? A. 64.58 kW                C. 60.45 kWB. 61.48 kW                D. 71.5 kW

The wind turbine gives the following data: Blade length, l = 39 m, Wind speed, V= 12.4 m/s, Air density, ρ = 1.23 kg/m3 , Power Coefficient, Cp = 0.39, Calculate the power available in the wind.

2. A fan discharges 265 cu.m/min of air through a duct of 92 cm in diameter against a static pressure of 0.022 m of water. The fluid density is 995 kg/cu.m., the air temperature is 29°C and the barometric pressure reading is 730 mm Hg. If the power input to the fan is measured 3.5 hp, what are the total and static fan efficiencies?

You are the mechanical engineer supervising the layout of a piping system. In a certain portion of the pipe, the specifications are as follows: length of pipe is 10m, inside diameter of 30cm, outside diameter of 30.5cm, maximum allowable speed of 15m/s and a coefficient of 0.003456. If the uncertainties are 0.02mm for length, 0.8mm for the diameters and 0.1mm/s for the velocity, what loss of head will be imminent in this pipe?

You are the mechanical engineer supervising the layout of a piping system. In a certain portion of the pipe, the specifications are as follows: length of pipe is 10m, inside diameter of 30cm, outside diameter of 30.5cm, maximum allowable speed of 15m/s and a coefficient of 0.003456. If the uncertainties are 0.02mm for length, 0.8mm for the diameters and 0.1mm/s for the velocity, what loss of head will be imminent in this pipe? In the piping system above, what is the uncertainty in computed head loss contributed by the velocity of the pipe?

Please solve it correctly,Urgent. Question: The discharge pressure of a water pump is 9, 000 kPa. The temperature is 150 deg deg C and density is 917 kg/m3. What is the equivalent pump head in meters? A. 11.005 m B. 1,000.5 m C. 1,050.5m D. 1, 100.5 m

a. Given the static head of 28.91 m, and static pressure head of 3.15 cm WC. What is the normal pressure, Pn? b. What is the Static efficiency of the fan if the air flow rate is equal to 3.8 5m /sec, total head of 68.72 m, velocity head of 30.86 m, mechanical efficiency and power are 39.12% and 35.72 KW at 30.69°C, respectively. c. Solve for the area at entrance of the fan blade, if the it has a 346mm diameter, flow of air is equal to 23.328 m/se and flow rate of 3.05 m³ /second.

The dimensions of a Francis radial-flow hydroturbine are r2 = 2.00 m, r1 = 1.30 m, b2 = 0.85 m, and b1 = 2.10 m, where location 2 is the inlet and location 1 is the outlet. At the turbine inlet and outflow, the runner blade angles are β2 = 71.4° and β1 = 15.3°, respectively. The runner rotates at a rate of ń = 160 rpm. At design conditions, the volume flow rate is 80.0 m3 /s.     (a)  State the necessary assumptions and calculate the angle α2 at which the wicket gates should turn the flow (Figure Q1), with α2 measured from the radial direction at the runner inlet. (b)  Calculate the swirl angle α1 (Figure Q1), where α1 is the angle measured from the radial direction at the runner output.  (c)  Calculate the needed net head and power output.  (d)  Discuss the actual power output and head required for actual case of the turbine (irreversibility not neglected).  (Properties For water at 20oC, ρ = 998.0 kg/m3)

A pump impeller rotating at 1400 rpm has an outside radius of 21 cm, the vane outlet angle β2 is 158° and the radial velocity at the outlet Cr2 is 4 m/s. Assuming radial flow at inlet, draw the theoretical outlet velocity diagram and calculate the various velocities and angles. Assume a deviation of 10° applied to β2 due to circulation after the modern theory. The flow is 30 lit/s. After drawing/illustrating the velocity diagram, find the theoretical head Ho, in meters, assuming radial flow at inlet, neglecting the deviation in inlet velocity diagram. calculate the water horsepower.

Consider the network described in the table below.Activity ImmediatePredecessor(s)Pessimistic Probable OptimisticJ -- 15 10 8K -- 9 8 7L J 10 6 5M J 3 3 3N K,M 9 5 1O K,M 10 7 4P L,N 10 8 3a. Calculate the expected duration of each activity.b. Calculate the expected duration and variance of the critical path.c. Calculate the probability that the project will be completed in fewer than 30 time units.

This is the equations I learnt so far and can apply to this  W = FS cos θ W = FS  Kinetic Energy (KE = ½ mv2) & PE = mgh Eff= Wo/W& Eff=FoD0/ FiDi  & Eff=AMA/IMA Momentum(P = mv) m1u1 + m2u2 = m1v1 + m2v2 Impulse(J = Ft                 = m Δv) Friction (F = μN) Power=Work/Time= Force x Displacement /Time

1. For a given pump, the diameter, the gauge pressures at the inlet and outlet are −30 × 103 P a and 200 × 103 P a, respectively. If the flow rate is 0.1 m3/s, and the power required is 25 kW, find the efficiency. The intake and discharge are at the same height. 2. The impeller of a radial-flow turbine has an outer radius of 4 f t, turning at 200 rpm. The volume flow rate is 1000 ft3/s, and it discharges in the axial direction. Neglect all losses. If the tangential component of the velocity at the inlet is 5 f t/s, find: (a) The torque exerted on the impeller. (b) The power developed by the machine.  

Given the parameters ( U , L , g , ρ , μ ) that affect a certainliquid fl ow problem, the ratio V 2 /( Lg ) is usually knownas the( a ) velocity head, ( b ) Bernoulli head, ( c ) Froude number,( d ) kinetic energy, ( e ) impact energy

An existing turbine has the following data: D = 95 cm, H = 27 m, Q = 69.9 m3/s, ρ = 998 kg/m3, N = 248 rpm, bhp = 14.1 MW. A new turbine is to be designed based from the existing one to meet the following requirements: H = 91 m and N = 190 rpm. Calculate the new diameter (meter). Round off your final answer to two decimal places.

Water flows through a horizontal pipe of cross sectional of 20 cm2. Atone section, the cross sectional area is 4 cm2. the pressure difference is29.4 psi. How many cubic meters of water will flow out of the pipe in 1min? (can you show the diagram or illustration if possible. thank you!) Choices: a. 0.008 b. 1.208 c. 0.493 d. 0.0185

Please  provide complete solution and diagram. An air compressor takes air and discharges it to 200 psi. If the volume flow of the discharge is 1.5 m3/sec, determine the capacity of the compressor in liters per sec. A.  9570.23 li/s                      C.  9680.24 li/sB.  8680.25 li/s                      D.  9750.24 li/s