Boiler Operation Engineer Interview Question - 25
Q. What are the causes of higher flue gas outlet temperature of boiler ?
Ans.
1.Improper Heat Transfer in Economizer, APH:
Clean Economiser coils and APH tubes regularly, maintain flue gas temperature as per manufacturer guide.
2.Accumulation of Soot on Super Heater Coils, Economizer:
Operate soot blowers regularly.
3.Burning of Higher Moisture Content Fuel:
Limit the moisture content of fuel.
4.Higher Economizer Feed Water Inlet Temperature:
Reduce steam flow to HP/LP heaters.
5.Excess Heating Surface of Boiler:
Modify the boiler pressure parts design in consultation with manufacturers and designers.
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Most Important Steam Blowing Questions Asked In Central BOE Interview
How it is been decided that RHS or LHS safety valve of steam drum is set at higher pressure ?
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What are the reasons for lifting of steam drum safety valve ?
Possible reasons for higher main steam temperature ?
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