Soot and ash are undesirable on tube surfaces because they
a) increase heat transfer through the heating surfaces
b) cause overheating of the tubes
c) reduce boiler efficiency
d) reduce draft for power requirements
e) reduce the heating surface of the boiler
Answer: C
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Sootblowers
- 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
- In addition to reducing heat transfer, soot and ash on fireside tubes also