Define the following terms:
a. Superheated steam
b. Saturated steam
c. Blowdown
d. Fire tube boiler
e. Water tube boiler
f. Waste heat boiler
a. Superheated steam is steam that has been heated to a very high temperature so that a majority of the moisture content has been removed (also called dry steam).
b. Saturated steam is steam in equilibrium with water (in other words, steam that holds all the moisture it can without condensation occurring).
c. Blowdown is the process use for blowing down accumulated sediment during operations and for draining the boiler when it is out of service. Intermittent blowdown removes accumulations of solids from the drum.
d. A fire tube boiler is a device that passes hot combustion gases through the tubes to heat water on the shell side.
e. A water tube boiler is a type of boiler that contains water-filled tubes that allow water to circulate through a heated firebox.
f. A waste heat boiler is a device that uses waste heat from a process to produce steam.
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