Mass flow rate

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Mass flow rate

Mass flow rate is the mass

Mass

In physical science, mass refers to the degree of acceleration a body acquires when subject to a force: bodies with greater mass are accelerated less by the same force....
of substance which passes through a given surface per unit time

Time

Time is a component of the measurement used to sequence events, to compare the durations of events and the intervals between them, and to quantify the motions of objects....
. Its unit is mass divided by time

Time

Time is a component of the measurement used to sequence events, to compare the durations of events and the intervals between them, and to quantify the motions of objects....
, so kilogram

Kilogram

The kilogram or kilogrammeThe spelling kilogram is used by the International Committee for Weights and Measures and the U.S....
per second

Second

The second , sometimes abbreviated sec., is the name of a units of measurement of time, and is the International System of Units SI base unit of time....
in SI

Si, si, or SI may refer to :...
units, and slug

Slug (mass)

The slug is an English unit of mass. It is a mass that accelerates by 1 ft/s? when a force of one pound-force is exerted on it. Therefore a slug has a mass of 32.17405 pounds or 14.5939 kg....
per second or pound

Pound (mass)

The pound or pound-mass is a Units of measurement of massused in the Imperial unit, United States customary units and other systems of measurement....
per second in US customary units. It is usually represented by the symbol .

Mass flow rate can be calculated from the density

Density

The density of a material is defined as its mass per unit volume. The symbol of density is ....
of the substance, the cross sectional area through which the substance is flowing, and its velocity

Velocity

In physics, velocity is defined as the Derivative of Position vector. It is a vector physical quantity; both speed and direction are required to define it....
relative to the area of interest.

' =

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Encyclopedia

Mass flow rate is the mass
Mass

In physical science, mass refers to the degree of acceleration a body acquires when subject to a force: bodies with greater mass are accelerated less by the same force....
of substance which passes through a given surface per unit time
Time

Time is a component of the measurement used to sequence events, to compare the durations of events and the intervals between them, and to quantify the motions of objects....
. Its unit is mass divided by time
Time

Time is a component of the measurement used to sequence events, to compare the durations of events and the intervals between them, and to quantify the motions of objects....
, so kilogram
Kilogram

The kilogram or kilogrammeThe spelling kilogram is used by the International Committee for Weights and Measures and the U.S....
per second
Second

The second , sometimes abbreviated sec., is the name of a units of measurement of time, and is the International System of Units SI base unit of time....
in SI
Si

Si, si, or SI may refer to :...
units, and slug
Slug (mass)

The slug is an English unit of mass. It is a mass that accelerates by 1 ft/s? when a force of one pound-force is exerted on it. Therefore a slug has a mass of 32.17405 pounds or 14.5939 kg....
per second or pound
Pound (mass)

The pound or pound-mass is a Units of measurement of massused in the Imperial unit, United States customary units and other systems of measurement....
per second in US customary units. It is usually represented by the symbol .

Mass flow rate can be calculated from the density
Density

The density of a material is defined as its mass per unit volume. The symbol of density is ....
of the substance, the cross sectional area through which the substance is flowing, and its velocity
Velocity

In physics, velocity is defined as the Derivative of Position vector. It is a vector physical quantity; both speed and direction are required to define it....
relative to the area of interest.

' =
where:
' = mass flow rate
' = density
v = velocity
A = flow area

This is equivalent to multiplying the volume flow rate by the density.

' =
where:
' = density
Q = volume flow rate

The symbol for mass flow rate is Newton's notation for a derivative
Derivative

In calculus, a branch of mathematics, the derivative is a measure of how a function changes as its input changes. Loosely speaking, a derivative can be thought of as how much a quantity is changing at a given point....
:
See also

Volume flow rate
Mass flux
Mass flux

Mass flux is the rate of mass flow across a unit area . The mass flux across a surface A is the total mass of particles which move across A per unit time ....
Fluid dynamics
Fluid dynamics

In physics, fluid dynamics is the sub-discipline of fluid mechanics dealing with fluid flow — the natural science of fluids in motion....
Orifice plate
Orifice plate

An orifice plate is a device used to measure the rate of fluid flow. It uses the same principle as a Venturi effect nozzle, namely Bernoulli's principle which says that there is a relationship between the pressure of the fluid and the velocity of the fluid....
Mass flow controller
Mass Flow Controller

A mass flow controller is a device used to measure and control the flow of gases. A mass flow controller is designed and calibrated to control a specific type of gas at a particular range of flow rates....