The formula Np=\(\frac{P}{n^3Da^5\rho}\) denotes which number in impeller problems?

Question

The formula Np=\(\frac{P}{n^3Da^5\rho}\) denotes which number in impeller problems?

← Prev Question Next Question →

1 Answer

Related questions

+1 vote

1 answer

Name the type of impeller used for agitation of low viscosity fluids, on high speeds?

asked Feb 2, 2022 in Food Processing Unit Operations by Ava (110k points)

+1 vote

1 answer

A flat blade turbine having six blades is centrally installed in a vertical tank. The tank is 6 ft (1.83 m) in diameter; the turbine is 2 ft. (0.61 m) in diameter and is positioned 2 ft (0.61 m) from the bottom of the tank. The turbine blades are 5 in. (127 mm) wide. The tank is filled to a depth of 6 ft (1.83 m) with a solution of 50 percent caustic soda, at 150°F (65.6°C), which has a viscosity of 12 cP and a density of 93.5 lb/ft^3 (1498 kg/m^3). The turbine is operated at 90 r/min. the tank is baffled. What power will be required to operate the mixer? (Given KL=403680).

asked Feb 2, 2022 in Food Processing Unit Operations by Ava (110k points)

+2 votes

1 answer

Which unit operation involves the mechanically induced establishment of a flow pattern in a liquid mixture?

asked Feb 2, 2022 in Food Processing Unit Operations by Ava (110k points)

+1 vote

1 answer

Which one is not the purpose of establishment of agitation in fluids?

asked Feb 2, 2022 in Food Processing Unit Operations by Ava (110k points)

+1 vote

1 answer

How can swirling be prevented in agitated vessels?

asked Feb 2, 2022 in Food Processing Unit Operations by Ava (110k points)

+2 votes

1 answer

The role of Baffles is to improve mixing and remove stratification during agitation.

asked Feb 2, 2022 in Food Processing Unit Operations by Ava (110k points)

+1 vote

1 answer

An agitator is selected depending upon the __________

asked Feb 2, 2022 in Food Processing Unit Operations by Ava (110k points)

+1 vote

1 answer

Power consumption of agitators is a function of ________

asked Feb 2, 2022 in Food Processing Unit Operations by Ava (110k points)

+1 vote

1 answer

Which method is used to write the basic heat transfer equation in the following form using weighted residuals? \(\int_v \left(\frac{\partial q_x}{\partial x}+\frac{\partial q_y}{\partial y}+\frac{\partial q_z}{\partial z}-Q+ \rho c \frac{\partial T}{\partial t}\right)\) N<sub>i</sub> dV = 0

asked Jan 30, 2022 in Finite Element Method by Ava (110k points)

+2 votes

1 answer

Which dimensionless number is denoted by the equation Pr =\(\frac{μC_p}{k}\) ?

asked Feb 2, 2022 in Food Processing Unit Operations by Ava (110k points)

+1 vote

1 answer

What is the function on \(\frac{\partial s}{\partial n}\) if S (n, e) denotes the shape function of a linear quadrilateral element?

asked Jan 30, 2022 in Finite Element Method by Ava (110k points)

+1 vote

1 answer

Which of the following shape represents the number of theoretical stages in McCabe-Thiele plot?

asked Feb 2, 2022 in Food Processing Unit Operations by Ava (110k points)

+1 vote

1 answer

Flywheel diameter 1.2 m; diameter of the rope 12.5 mm; engine speed 200 r.p.m.; dead load on the brake 600 N; spring balance reading 150 N. Using this data, calculate the brake power of the engine in kW.

asked Sep 23, 2022 in Machine Dynamics by Grayson (34.3k points)

+1 vote

1 answer

Flywheel diameter 1.2 m; diameter of the rope 12.5 mm; engine speed 400 r.p.m.; dead load on the brake 600 N; spring balance reading 150 N. Using this data, calculate the brake power of the engine in kW.

asked Sep 22, 2022 in Machine Dynamics by Grayson (34.3k points)

+1 vote

1 answer

Flywheel diameter 1.2 m; diameter of the rope 12.5 mm; engine speed 100 r.p.m.; dead load on the brake 600 N; spring balance reading 150 N. Using this data, calculate the brake power of the engine in kW.

asked Sep 22, 2022 in Machine Dynamics by Grayson (34.3k points)

+2 votes

1 answer

In Fluid dynamics, Reynold’s number is a dimensionless number. True or False?

asked Feb 2, 2022 in Food Processing Unit Operations by Ava (110k points)

+2 votes

1 answer

What are the base quantities ofDimensional formula?

asked Feb 2, 2022 in Food Processing Unit Operations by Ava (110k points)

+1 vote

1 answer

At equilibrium, the concentrations of N2=4.0 x10^-3M, O2 = 5.2 x 10^-3M and NO=3.9×10^-3M in a sealed vessel at 800K. What will be Kc for the reaction?

asked Feb 2, 2022 in Food Processing Unit Operations by Ava (110k points)

+2 votes

1 answer

Is micro filtration is used to remove biological entities in the 0.25 μm to 5.0μm range?

asked Feb 2, 2022 in Food Processing Unit Operations by Ava (110k points)

+1 vote

1 answer

The pressure of a 2.74moles of a gas in a container was 432.0 torr. What would the pressure inside the container be if 5.05 moles of the gas was in it?

asked Feb 2, 2022 in Food Processing Unit Operations by Ava (110k points)

+1 vote

1 answer

In a reverted gear train, two gears P and Q are meshing, Q-R is a compound gear, and R and S are meshing. The modules of P and R are 4 mm and 5 mm respectively. The numbers of teeth in P, Q and r are 20, 40 and 25 respectively. The number of teeth in S is

asked Sep 25, 2022 in Machine Kinematics by Leo (38.0k points)

+1 vote

1 answer

The crank-pin circle radius of a horizontal engine is 300 mm. The mass of the reciprocating parts is 250 kg. When the crank has travelled 30° from T.D.C., the difference between the driving and the back pressures is 0.45 N/mm^2. The connecting rod length between centres is 1.2 m and the cylinder bore is 0.5 m. If the engine runs at 250 r.p.m. and if the effect of piston rod diameter is neglected, calculate the net load on piston.

asked Sep 22, 2022 in Machine Dynamics by Grayson (34.3k points)

+1 vote

1 answer

If weight of rammer is W, free fall height is h, number of layers is N, number of blows is n, acceleration due to gravity is g and volume as V, then the formula for energy per volume is ______

asked Feb 8, 2022 in Geotechnical Engineering I by Sophia (102k points)

+1 vote

1 answer

Calculate the quantity of bed load transport by using Meyer and Peter formula if the effective tractive force that causes bed load transportation is 2.5 N/m^2.

asked Aug 15, 2023 in Irrigation Engineering by Carter (75.2k points)

+1 vote

1 answer

What is the Reynolds number range when the drag coefficient formula is 10/(Rep)^0.5?

asked Jan 30, 2022 in Fluidization Engineering by Sophia (102k points)

The formula Np=\(\frac{P}{n^3Da^5\rho}\) denotes which number in impeller problems?

Please log in or register to answer this question.

1 Answer

Please log in or register to add a comment.

Related questions

Categories