Answer / binoj kuchal

FLOW IS DIRECTLY PROPOTIONAL TO THE SQUARE ROOT OF THE
DIFFERENTIAL PRESSURE

Answer / rajesh

generally flow measurent using diffrential is based on
bernoulis theorem.i.e cofficient of dicharge*square root of
diffrentails pressure

Answer / ravi

where orifice plate is used to measure flow alone, the
signal is square rooted. it is by the formula Q=K square
root of Differential pressure. If other types of FT are
used then the signal from that FT need not to be square
rooted.

Answer / amit yadav

where orifice plate is used to measure flow alone, the
signal is square rooted. it is by the formula Q=K square
root of Differential pressure.
when magnetic flow meter is used flow is linear
emf= v*B*L
V=VELOCITY OF FLOW
b=magnetic field
l=diameter of pipe

Answer / pankaj

When flow is turbulent, the pressure drop through a restriction is proportional to the square of the flowrate. Therefore, flow can be measured by taking the square root of a differential pressure cell output.

Answer / kalaiselvan

flow directly proportional to square root of differential
pressure so we measure flow in square root

Q = SQARE ROOT OFF DIFFERENTIAL PRESSURE

Answer / faiyaz ahmad

flow is directly proportional the square root to measure a differential pressure that is why flow always measure in square root.

Answer / zia

Flow varies directly proportional to square root of differential pressure F = K square root of AP. Since this flow varies as the square root of differential pressure the pen does not directly indicate flow. The flow can be determined by taking the square root of the pen. Say the pen reads 50% of chart.

Answer / afzal

Output sqrt=4mA+(4×_/(output Linera- 4mA))

Answer / shahzad

due to the high variation of flow measurements that's why we use square root in flow measurements.

What is diff between Ingral orifice and simple orifice?where it use?

3 Answers  

i want use pressure transmitter for flow ,how?

5 Answers   Gasco,

Is there a particular problem if two proposals from the same observatory (originating with different partners) are submitted?

1 Answers  

what are the different types of Protocols? & their applications.

6 Answers   Infosys, Sitara Chemical Industries, Syntel, VSNL,

i want formula for flow control.am doing project in flow control using orifice . i know value of the flow level(Q) . upstream(p1) pressure, orifice diameter(Do) , pipe diameter(Di) and oil viscosity(Vi) how can i calculate downstream pressure

0 Answers  

A PLC is programmed to drive three motors A, B and C as follows : After running motor A for an hour, motor B should get ON and motor A should get OFF. And after running motor B for an hour, motor C should get ON and motor B should get OFF. And after running motor C for an hour, motor A should get ON and motor C should get OFF. (That is, a cyclic repetition with time period one hour) Now, the second condition is: If any motor gone faulty and is tripped, the consecutive motor should get ON and the faulty (tripped) motor should be eliminated from cyclic repetition. The remaining two motors should bear the cyclic repetition of one hour each. (For healthy motor take logic as high and for tripped motor take logic as low) Now, the third condition is: When motor A load(Amps) exceeds 60% of its rated load, motor B should get ON in parallel to motor A. And when both motors A & B are running in parallel, and if their load exceeds 60% of their rated load, motor C should also start in parallel to A & B. [Here the cyclic repetition is eliminated, until their loads become normal(40%)] [Take logic high(1) for load at 60% and logic low(0) for load at 40%] Now draw a flow chart or a ladder diagram to fulfill the above condition.

0 Answers   MNC,

what is the procedure to isolate flow a transmitter and flushing it?

8 Answers   Petrofac,

Explain the use of hair spring in the pressure gauge.

0 Answers  

define optical temperature detector

1 Answers  

what is the difference between E/P positioner and I/P positioner in control valve , in which application the respective positioner are used in.

1 Answers   ABB,

for commissioning the DPT and Flow Transmitter , what kind of necessary activities we have to check and do? specially that orifice flange valve[ isolation valve}

1 Answers   L&T,

how to do loop checking pls email to shanavaska2000@yahoo.com

2 Answers   Kentz,