FormulaDen.com

Physics Chemistry Math Chemical Engineering Civil Electrical Electronics Electronics and Instrumentation Materials Science Mechanical Production Engineering Financial Health

Power Formula

GoPower Required to Overcome Frictional Resistance in Laminar Flow Formula

Fx Copy

LaTeX Copy

Power Generated is the amount of energy liberated per second in a device. Check FAQs

P w = F e \cdot Δv

P_w - Power Generated?F_e - Force on Fluid Element?Δv - Change in Velocity?

Power Example

With values

With units

Only example

Here is how the Power equation looks like with Values.

Here is how the Power equation looks like with Units.

Here is how the Power equation looks like.

900 = 2.5 \cdot 360

900W = 2.5N \cdot 360m/s

900 = 2.5 \cdot 360

Tip: Use pencil ( Pencil

) icon above to edit Input Values and Units.

Calculate

Recalculate

Solution

Copy

Reset

You are here -

Home » Category

Engineering » Category

Mechanical » Category

Fluid Mechanics » fx Power

Power Solution

Follow our step by step solution on how to calculate Power?

FIRST Step Consider the formula

P w = F e \cdot Δv

Next Step Substitute values of Variables

∴

P w = 2.5N \cdot 360m/s

Next Step Prepare to Evaluate

∴

P w = 2.5 \cdot 360

LAST Step Evaluate

∴

P w = 900W

Power Formula Elements

Variables

Power Generated

Power Generated is the amount of energy liberated per second in a device.

Symbol: P_w

Measurement: PowerUnit: W

Note: Value should be greater than 0.

Formulas to find Power Generated

Force on Fluid Element

Force on Fluid Element is the sum of pressure and shear forces acting on it within a fluid system.

Symbol: F_e

Measurement: ForceUnit: N

Note: Value can be positive or negative.

Formulas to find Force on Fluid Element

Change in Velocity

Change in Velocity is the change in speed, or a change in direction, or a change in both speed and direction of an object.

Symbol: Δv

Measurement: SpeedUnit: m/s

Note: Value can be positive or negative.

Formulas to find Change in Velocity

Other Formulas to find Power Generated

Go Power Required to Overcome Frictional Resistance in Laminar Flow

P w = γ \cdot R f \cdot h f

Other formulas in Hydrodynamics Basics category

Go Metacentric Height given Time Period of Rolling

H m = \frac{{(K g \cdot π)}^{2}}{{(\frac{T r}{2})}^{2} \cdot [g]}

Go Moment of Momentum Equation

T = ρ 1 \cdot Q \cdot (v 1 \cdot R 1 - v 2 \cdot R 2)

Go Poiseuille's Formula

Q v = Δp \cdot \frac{π}{8} \cdot \frac{{r p}^{4}}{μ v \cdot L}

Go Power Developed by Turbine

P T = ρ 1 \cdot Q \cdot V wi \cdot ν t

How to Evaluate Power?

Power evaluator uses Power Generated = Force on Fluid Element*Change in Velocity to evaluate the Power Generated, Power can be defined as the rate at which work is done by a force moving an object over a certain distance in a given time. Power Generated is denoted by P_w symbol.

How to evaluate Power using this online evaluator? To use this online evaluator for Power, enter Force on Fluid Element (F_e) & Change in Velocity (Δv) and hit the calculate button.

FAQs on Power

What is the formula to find Power?

The formula of Power is expressed as Power Generated = Force on Fluid Element*Change in Velocity. Here is an example- 900 = 2.5*360.

How to calculate Power?

With Force on Fluid Element (F_e) & Change in Velocity (Δv) we can find Power using the formula - Power Generated = Force on Fluid Element*Change in Velocity.

What are the other ways to Calculate Power Generated?

Here are the different ways to Calculate Power Generated-

Power Generated=Specific Weight of Liquid 1*Rate of Flow of Fluid*Head Loss

Can the Power be negative?

No, the Power, measured in Power cannot be negative.

Which unit is used to measure Power?

Power is usually measured using the Watt[W] for Power. Kilowatt[W], Milliwatt[W], Microwatt[W] are the few other units in which Power can be measured.

Let Others Know

✖

Facebook

Twitter

Copied!

: Value
: Unit