Answer / muhammad ismael

When the downstream flow requirement of a compressor will increase, the pressure will decrease here and pressure on suction will increase. This may effect back flow in compressor or a physical damage also. On that time flow control system try to change the speed of Drive (Motor & Turbine) to match the new requirement of flow but speed of a large mass (Driver + Compressor) is not possible to change with in a short period of time. so, to avoid from surge a control valve used from suction to discharge or a valve used to blow the high pressure.

what master plc do?

2 Answers   ISRO, Yokogawa,

---

What do you know about gail?

0 Answers   GAIL,

---

what is the procedure of O2 analyser calibration?

3 Answers   Thermax,

---

What are the difference between mass flow meter, magnetic flow meter and vortex flow meter.

1 Answers  

---

can you give some devices that measure directly the mass flow rate.

1 Answers   Takreer,

---

whey we conect ammeter in series and voltmeter in parallel in circuit

1 Answers  

---

why we use by pas on a positioner? When can a by pass be not used on a positioner ?

1 Answers  

---

How to calibrate the flow transmitter

0 Answers  

---

How to set up the various advanced process controllers, input the proper parameters, and tune those controllers given related control system information.

1 Answers   EID Parry,

---

what are the following documents comes under loopchecking

1 Answers   Heisco,

---

what is the principal of coriolis mass flowmeter

1 Answers  

---

hw to calibration a control valve?

3 Answers  

---