Answer Posted / mohamed elnakib

it is due to the air preheater being clogged increasing the
load of the ID fans due to the bad suction and this clogging
is mostly due to the baskets being melted due to the
formation of the ACIDS from the exhaust gases and the dew
point effect .


this is the only logical reason for why the ID fan is 100%
loaded while the boiler is not .

DCS marshaling Cabinet Power supply can be replace during plant running time? Answer Yes it is possible. I am talking about the controller and cards power supply modules. They are always redundant and connected through diode so that if one power supply fails the other can take the charge immediately.so it is possible to replace one of them in running plant if the other one is healthy. MY question is how switching done.

945

---

How We Calibrate the vaccum transmitter?

1927

---

How to calculate power press toneage

2009

---

Why superheated are started before I'd and rd fan?

2123

---

what is the difference between compensated & normal drum level in boiler drum?

1740

---

Which will have more strain energy 1.Spring 2.Circular disc 3.Solid square plate.

2358

---

We have Demin Closed cooling water system with expansion tank for cooling oil system. Expansion tank having N2 bladder. Whenever N2 bladder bursts out, Closed cooling water circuit pressure drops and make-up happening, eventhough there is no leaks. And how Circuit pressure drops?

1858

---

By any way can we increase the B check hours from 300 to 500

2144

---

operation

1833

---

why airtel use + 24 volts and other operators use -48 volt

2570

---

what is the basic use of power plant in equipment

1673

---

LAPT working in alternator / generator

3559

---

can u please tell me how to calculate the concrete quantity for a under reamed pile? r=300mm,depth=3m for a cylinder and for bulb l=.750mm,width=.525

1691

---

procedure of how to generate power in solar plant.

1900

---

what is the meaning of SST300 V56A in SIEMENS turbine

4304

---