What will happen if the Air Preheater is placed before the Economiser?

Answers were Sorted based on User's Feedback



What will happen if the Air Preheater is placed before the Economiser?..

Answer / bidyut

coal consumption will be high.

Is This Answer Correct ?    13 Yes 1 No

What will happen if the Air Preheater is placed before the Economiser?..

Answer / anbu

May be coal consumption is high. And the major issue is that the temperature of flue gas may reduced to below the acidic dew point then the tube erosion will occur in economiser coils and ESP also will disturb like lesser efficiency due to low charging performance.

Acidic dew point means that, H2So4 phase change occur from gaseous state to liquid state.

Is This Answer Correct ?    9 Yes 0 No

What will happen if the Air Preheater is placed before the Economiser?..

Answer / selvalagan

Air pre heater air outlet temperature will be high and Economiser outlet water temperature is low.



So boiler efficiency is become low.

Is This Answer Correct ?    9 Yes 0 No

What will happen if the Air Preheater is placed before the Economiser?..

Answer / dk

satuated temperature very low temperature and air heater outlrt air & pa air also hot air above 200c and fuel consumption not high as possible only reason for economiser o/l temperature only decreased

Is This Answer Correct ?    1 Yes 0 No

What will happen if the Air Preheater is placed before the Economiser?..

Answer / syed

Drum itself hammering will happen due to low inlet temperature also desuperheater coil damage due to low water temperature

Is This Answer Correct ?    0 Yes 1 No

What will happen if the Air Preheater is placed before the Economiser?..

Answer / shivaling naik

For water temperature increasing....

Is This Answer Correct ?    0 Yes 3 No

Post New Answer

More Power Plant Engineering Interview Questions

In one plant id fan and fd fan are used for boiler. boiler is used to heat water after some days they install one tank to heat water by hot flue gases coming out from boiler and then hot flue gases are used to heat the air coming from fd fan before leaving out from chimney . but hot flue gases are not coming out from id fan what might be the reason?

3 Answers   TATA,


what's the moog valve

0 Answers   Sirte Oil Company,


What vibration parameters are monitored in a directly coupled single cylinder turbine and generator?

1 Answers  


why expansion bellow is provided in between hopper and vessel in ash handling plant?

2 Answers   Bajaj,


Difference between electrical and electronics?

7 Answers   Power Plant,






How do you consider that you can improve and what assistance do you need to achieve this

0 Answers  


2. what is meant by exhausthood temp?

4 Answers   Alstom, ANG, GMR,


What is indipendant power plant

2 Answers  


1. what is meant by burner tilting?

3 Answers  


63.5 ohm NGR is connected with our gas engine genrator running at 500 rpm, 50 hz and synched with WAPDA at 6.3 KV bus voltages, 2500A and 25KA(1 sec). can some one give me proper calculations how it comes 63.5ohm?????

2 Answers   UET,


what is the difference between flow and force ,draught and vaccum ,tube and pipe?

3 Answers  


what are all the pre commissioning activities in WTP in power plant

1 Answers  


Categories
  • Civil Engineering Interview Questions Civil Engineering (5085)
  • Mechanical Engineering Interview Questions Mechanical Engineering (4451)
  • Electrical Engineering Interview Questions Electrical Engineering (16632)
  • Electronics Communications Interview Questions Electronics Communications (3918)
  • Chemical Engineering Interview Questions Chemical Engineering (1095)
  • Aeronautical Engineering Interview Questions Aeronautical Engineering (239)
  • Bio Engineering Interview Questions Bio Engineering (96)
  • Metallurgy Interview Questions Metallurgy (361)
  • Industrial Engineering Interview Questions Industrial Engineering (259)
  • Instrumentation Interview Questions Instrumentation (3014)
  • Automobile Engineering Interview Questions Automobile Engineering (332)
  • Mechatronics Engineering Interview Questions Mechatronics Engineering (97)
  • Marine Engineering Interview Questions Marine Engineering (124)
  • Power Plant Engineering Interview Questions Power Plant Engineering (172)
  • Textile Engineering Interview Questions Textile Engineering (575)
  • Production Engineering Interview Questions Production Engineering (25)
  • Satellite Systems Engineering Interview Questions Satellite Systems Engineering (106)
  • Engineering AllOther Interview Questions Engineering AllOther (1379)