In addition to reducing heat transfer, soot and ash on fireside tubes also
a) lessens the chance of furnace explosions
b) increases draft fan power
c) results in the formation of CO in the flue gases
d) raises superheater temperatures
e) results in smoke emissions from the stack
Answer: B
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Sootblowers
- Soot and ash are undesirable on tube surfaces because they
- Shot cleaning pellets are transported to the top of the boiler
- Shot cleaning pellets have a diameter of approximately
- A stationary sootblower
- While a steam sootblower is in operation it is cooled by
- During a sootblowing operation the boiler firing rate should be at least
- A long retractable sootblower will
- A furnace wall sootblower sequence of operation is
- The steam used for sootblowing is usually