Boiler Operation Engineer Interview Question - 18
Q. What are the effects of high and low drum levels?
Ans.
High drum level:
- Results into carryover of water into super heater coils which may damage coils due to high thermal shock.
- Can damage safety valve seats.
- Disturbs circulation ratio.
- Carry over with sharp fall in super heater temperature.
- Water may enter turbine and serious damages to turbine may occur.
- Super Heater deposit and fouling.
- Turbine Deposit and increase in specific steam consumption.
Low drum level may results less steam flow to super heater coils.
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