In a thermal power plant : Why the Deaerator is placed at height and mostly at

Categories >> Engineering >> Mechanical Engineering
Suggest New Category

In a thermal power plant : Why the Deaerator is placed at
height and mostly at 15.5mtr?

Question Posted / bmohanta34

9 Answers
38221 Views
DSM, Jindal, I also Faced
E-Mail Answers

Answers were Sorted based on User's Feedback

In a thermal power plant : Why the Deaerator is placed at height and mostly at 15.5mtr?..

Answer / him295

so as to net positive suction head( NPSH) for the boiler
feed pump(BFP) in conjucture with booster pump

Is This Answer Correct ?

105 Yes

9 No

In a thermal power plant : Why the Deaerator is placed at height and mostly at 15.5mtr?..

Answer / dineshsingh

for net positive suction head for feed pump

Is This Answer Correct ?

57 Yes

8 No

In a thermal power plant : Why the Deaerator is placed at height and mostly at 15.5mtr?..

Answer / khaled lamary

By putting the dearator at heigt we guarantee vapor doesn't
form at the suction area of feed water pumps so cavetation
phenomenun in the impellers can be prevented.

Is This Answer Correct ?

24 Yes

4 No

In a thermal power plant : Why the Deaerator is placed at height and mostly at 15.5mtr?..

Answer / nisarg

Deaerator at height not only provides Available suction head at boiler feed pump at higher side than required NPSH but also makes re-circulation valve discharge to remain in liquid state and not the gaseous state. because feed water temperature to the BFP (and also the temperature after the throttling in ARC valve) is lower than the saturation temperature of the return line of re-circulation to deaerator.

Is This Answer Correct ?

15 Yes

3 No

In a thermal power plant : Why the Deaerator is placed at height and mostly at 15.5mtr?..

Answer / rahul varma

By putting deaerator at height, vapour doesn't form at the suction area of feed water pumps so cavitation phenomenon in the impeller can be prevented.
also to provide NPSH.

Is This Answer Correct ?

3 Yes

1 No

In a thermal power plant : Why the Deaerator is placed at height and mostly at 15.5mtr?..

Answer / deepen mallick

Vapour Pressure being one of the important constituent for determining NPSHA as opposed to NPSHR

Is This Answer Correct ?

2 Yes

1 No

In a thermal power plant : Why the Deaerator is placed at height and mostly at 15.5mtr?..

Answer / hasan ahtesham

It is use to increase pressure of water from dearator, n if
we will not use it then due to temperature above 100 degree,
if pressure falls then there will be phase change.

Booster Pumps are used in applications where the normal
system pressure is low and needs to be increased...

Is This Answer Correct ?

9 Yes

9 No

In a thermal power plant : Why the Deaerator is placed at height and mostly at 15.5mtr?..

Answer / arun

for creating pressure difference

Is This Answer Correct ?

10 Yes

13 No

In a thermal power plant : Why the Deaerator is placed at height and mostly at 15.5mtr?..

Answer / ashish gupta

because heater intend for use with lp exhaust steam as the feed outlet temp is united such that an even suction is mentained

Is This Answer Correct ?

0 Yes

4 No

Post New Answer

More Mechanical Engineering Interview Questions

What is process flow diagram?

0 Answers

Explain what meant by Transmissability in Vibration ?

0 Answers

The Length of the Divergent Cone is about 3 to 4 times than that of the Convergent Cone why

2 Answers DELL,

In some engines glycerine is used in place of water for cooling of engine. Why ?

0 Answers

How we can find out duct area from CFM?

1 Answers Emirates,

Which is the welding process you have carried out in workshop?

0 Answers

If any machinery or trnsmission needs periodic and regular lubrication what is the best method to give?

0 Answers Essar,

In Turbine how the balence piston works and what is the direction of leak of steam flow.

0 Answers

what is breather i a diesel engine. state its function.

6 Answers

HOW TO CALCULATE THE FILTER ELEMENT AREA FOR VISCOUS FLUIDS IN CASE OF PLAETED METTALIC FILTERS

0 Answers

what is the main purpose of deaerator in thermal power plants?

3 Answers Engro,

what is effect of silica in steam boiler

1 Answers Diversey,

For more Mechanical Engineering Interview Questions Click Here