What type of boiler consists of a shell and a series of steel tubes that transfer heat through a combustion chamber into the horizontal fire tubes?
a. Water tube boiler
b. Waste heat boiler
c. Fire tube boiler
a. Incorrect. Water tube boilers contain water-filled tubes that allow water to circulate through a heated firebox.
b. Incorrect. Waste heat boilers are devices that use excess heat from a process to produce steam.
c. Correct. Fire tube boilers are devices that pass hot combustion gases through the tubes to heat water on the shell side of the exchanger.
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Fill in the blank(s) with the appropriate word(s).