Interested to Buy Any Domain ? << Click Here >> for more details...
Why an electromagnetic flow meter cannot be used for gases,
steam and oil flow measurements?
- 4 Answers
- 10246 Views
- I also Faced
- E-Mail Answers
Answer Posted / rajesh l parmar
Electromagnetic flow meter works on a principal of
faraday’s law or electromagnetic induction which states
that when a current carrying coinductor moves through a
stationary traverse magnetic field, then e.m.f. is induced
between the ends of the conductor and this e.m.f. is
proportional to relative velocity between conductor and
magnetic field
E = BLV where
B = magnetic induction
L = length of a conductor
V = velocity of the conductor relative to the magnetic
field
It consists of a flow tube inside a pipe which carries a
fluid flow. So when the fluid is passed through the flow
tube, it is visualized as a current carrying conductor
having a length equal to inside diameter of the flow tube.
Now the gas, steam and oils are having low electrical
conductance. So no E.M.F. can be generated in such case. So
electromagnetic flow meters can not be used for metering
gas, oil and steam.
In general electromagnetic flow meters can only be used to
measure the flow of fluid which are sufficient conductive
to generate e.m.f.
| Is This Answer Correct ? | 1 Yes | 0 No |
Post New Answer View All Answers
Define pneumatic conveying?
What are demand of crotonaldehyde99% in the worldand its international market ?
What are the problems that are associated with the expansion joints?
Can asphalt be recycled to form a useful product?
What is the most common carrier gas used in pneumatic conveying?
Explain how is waste heat boilers categorized?
Explain the different ways in which solids can be blended?
What particle sizes are electrostatic precipitators used to remove?
In a Furnace arch pressure is more than Hearth pressure,then how flue gas travels to stack
oil field interview question
I want to know that what type of questions may be come for fertilizer company for written exam?
How can one estimate how the friction factor changes in heat exchanger tubes with a change in temperature?
design calculations for reactor
Explain what type of pump may be appropriate for a liquid near saturation, a low flow rate, and very limited npsha (net positive suction head available)?
What does the catalystic converter on an automobile really do?
