Answer / kumar

Mass Flow Rate represents the amount of mass that passes a
specific point over a period of time.

Mass flow rates are used to measure the weight or
mass of a substance flowing through a process
operation. If the volumetric flow rate and density
are known, the calculation is based on the formula

W = Q x r
where
W = mass flow rate
Q = volumetric flow rate
r = density (r = density “rho” )
Megnetic flow meter:
What is a Magnetic Flow Meter?

A magnetic flow meter (mag flowmeter) is a volumetric flow
meter which does not have any moving parts and is ideal for
wastewater applications or any dirty liquid which is
conductive or water based. Magnetic flowmeters will
generally not work with hydrocarbons, distilled water and
many non-aqueous solutions). Magnetic flowmeters are also
ideal for applications where low pressure drop and low
maintenance are required.

Principle of Operation
The operation of a magnetic flowmeter or mag meter is based
upon Faraday's Law, which states that the voltage induced
across any conductor as it moves at right angles through a
magnetic field is proportional to the velocity of that
conductor.

Faraday's Formula:
E is proportional to V x B x D where:

E = The voltage generated in a conductor
V = The velocity of the conductor
B = The magnetic field strength
D = The length of the conduc

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