Answer Posted / ramesh

The operating principle of the vortex meter is based on the
fact that when a flow hits an obstruction (bluff body), it
separates and moves around the object to continue on down
stream. Vortex swirls separate from the object on
alternating sides at the contacting point with the object.
This shedding causes low pressure swirls on one side and
high pressure on the other side. The process is reversed
from one side to another and keeps on alternating. The two
swirl frequencies are 180 degrees out of phase to each
other. And the frequency of this shedding process is
proportional to the velocity of the flow.

By measuring the frequency of formation of the vortex on any
side of the bluff body, the flow rate can be obtained. The
fluid velocity is proportional to the vortex frequency and
the width of the bluff body.

what is the reason while warning lamp is on while the engine is cranking?

2134

---

1.can you use SCADA instead of DCS,DCS instead SCADA 2.Difference between DCS and PLC,can their role be reversed i.e. role interchange 3.Difference between RTU and PLC

2577

---

what is insdustrial vibration.who it works. give atleast 2 types of insdustrial vibration

1962

---

Calibration procedure for water rotameters

2187

---

How do you identify between actual alarm and false alarm in a Temperature Transmitter in SCADA based Control System

1354

---

what is the input to be given in digital flow meter during the the calibration time?

2218

---

What is Erosion in a control valve?

2132

---

How is PH sensor works ?

1959

---

What is loop1 and loop2 in MTS LT?

3830

---

Draw a wheatstone bridge circuit showing supply, meter and 3 wire RTD connection

2007

---

Draw a group of instruments interlocked to a Pump & Motor?

1290

---

How to calibration a control valve?

1159

---

why orfice is not used for main steam flow calculation

2118

---

what is zero and span ?

1653

---

full process of gas turbin?

2090

---