## pump power calculation formula specific speed of a

# pump power calculation formula specific speed of a

### Pump Power Calculation Formula Specific speed of a ...

2018-9-22 Specific Speed of Pump. The specific speed “Nq” is a parameter derived from a dimensional analysis which allows a comparison of impellers of various pump sizes

get price### How to Calculate Pump Specific Speed Pumps Systems

2015-1-7 Despite its name, pump specific speed (NS) does not have much to do with the actual speed of a pump. While the rpm is included in the formula, the calculation’s

get price### Pump Specific Speed Calculator - Engineering Units

Pump Specific Speed at Best Efficiency Point Formulas: Imperial Units: N s = ( N * (Q) 1/2 ) / (H) 3/4. where: Ns = specific speed. N = pump speed, rpm. Q = flow, gpm. H =

get price### Centrifugal Pumps Fluid Flow Practical Calculations

2018-7-18 Calculate the volumetric flow rate of water in the pipe. Q = (π.r²).v = Q = (π x 0.16² ft) x 14 ft/s = 1.22 ft³/s 5. Mass Flow Rate: The mass flow rate is related to the volumetric flow rate as shown in equation below: m = ρ x V Replacing with the appropriate terms allows the calculation of direct mass flow rate: m = ρ x (A x v) Example 7:

get price### Pump Specific Speed Calculation - Chemical Engineering Site

2016-11-23 Formula for Calculation of Pump Specific Speed. Specific speed of the pump is calculated with the help of the formula: N s = (N * √Q )/ H (3/4) Where. N s is

get price### Pump Power Calculator - engineeringtoolbox

2021-11-12 Hydraulic Pump Power. The ideal hydraulic power to drive a pump depends on. the mass flow rate the; liquid density; the differential height - either it is the static lift from one height to an other or the total head loss component of the system - and can

get price### Specific Speed of Pump Calculator - EasyCalculation

Calculator. Formula. The specific speed is used to represent the shape of the pump. The specific speed of the pump can be calculated based on the shaft rotational speed, flow rate and head rise. Code to add this calci to your website. Just copy and paste the below code

get price### Design Calculation of Impeller for Axial Flow Pump

2021-6-4 specific speed pump that is 400 and 1200. So, axial flow pump type that is high specific speed pump is chosen in this study. B. Determination of Impeller Hub-Ratio and Blade Number . The ratio of impeller hub diameter and outside diameter, D. h / D. o. can be determined based on specific speed. Thus, the impeller hub ratio is . 268 0. 603 D d ...

get price### Pump Specific Speed Calculation - Chemical Engineering Site

2016-11-23 Formula for Calculation of Pump Specific Speed. Specific speed of the pump is calculated with the help of the formula: N s = (N * √Q )/ H (3/4) Where. N s is Specific speed of the pump Dimensionless. N is Speed of the pump in rpm. Q is the

get price### Specific Speed Pumps - Engineering ToolBox

2021-11-12 Specific Speed is a number characterizing the type of impeller in pump in a unique and coherent manner. Specific speed is determined independent of the pump size and can be useful when comparing different pump designs. Specific Speed identifies the geometrically similarity of pumps. Specific speed can be expressed as. Ns = n q1/2 / h3/4 (1) where.

get price### Pump Power Calculator - engineeringtoolbox

2021-11-12 Hydraulic Pump Power. The ideal hydraulic power to drive a pump depends on. the mass flow rate the; liquid density; the differential height - either it is the static lift from one height to an other or the total head loss component of the system - and can

get price### Pump specific work / Power gained by fluid calculation ...

2021-2-26 2. Pump specific work calculation. The pump specific work, which means the Joules input per kg of fluid, can be calculated with the following formula : W=H.g. With : W = specific work of the pump in J/kg H = actual head rise (m) g = gravity acceleration = 9.81 m.s-2. 3. Power gained by the fluid

get price### Specific Speed of Pump Calculator - EasyCalculation

Calculator. Formula. The specific speed is used to represent the shape of the pump. The specific speed of the pump can be calculated based on the shaft rotational speed, flow rate and head rise. Code to add this calci to your website. Just copy and paste the below code

get price### Suction specific speed (US) - Pump Calcs

Pump engineering calculations of brake horsepower, power, kilowatts, motor, motors, voltage drop, circular mills, transformers, turns ratio, ohms law, dc power, voltage, current, volts, amperes, amps, impedance, capacitance, reactance and more. ... Centrifugal Pumps> Suction specific speed (US) Suction specific speed (US) Toggle. Equation ...

get price### Design Calculation of Impeller for Axial Flow Pump

2021-6-4 specific speed pump that is 400 and 1200. So, axial flow pump type that is high specific speed pump is chosen in this study. B. Determination of Impeller Hub-Ratio and Blade Number . The ratio of impeller hub diameter and outside diameter, D. h / D. o. can be determined based on specific speed. Thus, the impeller hub ratio is . 268 0. 603 D d ...

get price### Pump Power Calculator - Online Calculator - Engineering

Pump Power Calculator in imperial Units/SI Units. P = power depend on: kW, H = head, m, Q = flow, m3/hr, SG = specific gravity, η= pump efficiency, decimal.

get price### Pumping Formulae - Malcolm Thompson Pumps

Pumping Formulae. At Malcolm Thompson Pumps, we want to give our customers all the tools they need to properly select, operate and maintain their pumps, and that includes providing them with all the necessary Pumping Formulas.. Selecting the right pumps for your operations is key to achieving maximum efficiency and cost-effectiveness in your operations.

get price### Motor Calculations - University of Alabama

2006-8-31 mechanical power output is simply the product of torque and speed with a correction factor for units (see section on calculating mechanical power requirements), power can be calculated using the previously plotted line for speed vs. torque. A sample table of calculations for motor 1624E009S is shown in Table 1. Each calculated point is then ...

get price### Specific Speed Pumps - Engineering ToolBox

2021-11-12 Specific Speed is a number characterizing the type of impeller in pump in a unique and coherent manner. Specific speed is determined independent of the pump size and can be useful when comparing different pump designs. Specific Speed identifies the geometrically similarity of pumps. Specific speed can be expressed as. Ns = n q1/2 / h3/4 (1) where.

get price### Pump Calculations and Equations - Power Zone Equipment

Chart of Relative Density / Specific Gravity for Common Liquids. Specific Gravity is used when sizing a centrifugal pump. Liquids with a specific gravity greater than 1.0 are heavier than water and conversely, liquids with a specific gravity lower than 1.0 are lighter weight than water and will generally float on water.

get price### Common Pump Formula - M.G. Newell

2016-5-23 Common Pump Formula Product Viscosity where: 2 = Kinematic viscosity (mm /s) = Absolute viscosity (mPas) = fluid density (kg/m3) Or where: = Kinematic viscosity (cSt) = Absolute viscosity (cP) SG = specific gravity Or where: 1 poise = 100 cP 1 stoke = 100 cSt Flow Velocity V = fluid velocity (m/s) where: Q = capacity (m3/s)

get price### Specific Speed (Ns) Definition Intro to Pumps

Specific speed can also be used to predict and evaluate pump efficiency and the shape of the pump performance curve. Higher specific speeds are associated with higher efficiency pumps with efficiency falling dramatically for designs with specific values below 1000. As specific speed increases, BEP tends to skew farther and farther towards the ...

get price### Pump specific work / Power gained by fluid calculation ...

2021-2-26 2. Pump specific work calculation. The pump specific work, which means the Joules input per kg of fluid, can be calculated with the following formula : W=H.g. With : W = specific work of the pump in J/kg H = actual head rise (m) g = gravity acceleration = 9.81 m.s-2. 3. Power gained by the fluid

get price### Pump Speed (RPM) Sellection based on - API 610

2. The effect of pump speed on suction specific speed, Nss. According to the suction specific speed formula, if we increase the speed, the suction specific speed as well as NPSHr will increase. Increasing these two causes cavitation in the pump. Therefore, we do not increase the pump speed as much as possible. N SS = N Q 0.5 / NPSHr 0.75. 3.

get price### How to Calculate Pump Horsepower - Pivotal Pumps

Power in horsepower is 33,000 lb-ft/minute. Force is the product of our capacity, constant weight ( 8.33 lbs / gallon ), and specific gravity. Displacement is simply our head (ft.) distance. And time is in minutes. Once these variables are in place, we can divide both sides by the constant 33,000 lb-ft/minute and further simplify the constants ...

get price### Pump Power Calculator - Online Calculator - Engineering

Pump Power Calculator in imperial Units/SI Units. P = power depend on: kW, H = head, m, Q = flow, m3/hr, SG = specific gravity, η= pump efficiency, decimal.

get price### Pumping Formulae - Malcolm Thompson Pumps

Pumping Formulae. At Malcolm Thompson Pumps, we want to give our customers all the tools they need to properly select, operate and maintain their pumps, and that includes providing them with all the necessary Pumping Formulas.. Selecting the right pumps for your operations is key to achieving maximum efficiency and cost-effectiveness in your operations.

get price### Motor Calculations - University of Alabama

2006-8-31 mechanical power output is simply the product of torque and speed with a correction factor for units (see section on calculating mechanical power requirements), power can be calculated using the previously plotted line for speed vs. torque. A sample table of calculations for motor 1624E009S is shown in Table 1. Each calculated point is then ...

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