Plant Water Losses
Continuous blowdown and/or intermittent blowoff loss.
b) Intermittent sootblowing. About 1 percent of the steam
generated is used during sootblowing for oil firing; about 2 percent for coal
c) Steam trap and receiver losses account for 1 to 3 percent of
Contaminated condensate from fuel oil heaters.
e) Steam for steam-atomizing oil burners.
About 1 to 7 percent of
generated steam is required for atomizing.
Protection. Provide backflow preventer upstream of water
treatment, ash handling equipment, flue gas desulfurization system and hose
Heating and Ventilating. Additional information may be obtained
from NAVFAC DM-3.03, Heating, Ventilating, Air Conditioning, and Dehumidifying
Heating Boiler Rooms. Heat boiler plants centrally by steam, low
temperature hot water, or medium temperature hot water, using unit heaters,
convectors, finned-tube radiation or fan coil units. Circulate hot ceiling
air to colder floor areas or boiler room. Do not consider heating
contribution from the boiler or associated equipment.
Provide adequate forced ventilation in
Ventilating Boiler Rooms.
all areas to:
Minimize heat buildup in equipment areas,
Remove airborne dust from solid fuel handling areas,
Remove moisture buildup in wet areas,
Remove noxious odors and vapors,
Provide reasonable comfort.
Maximum Temperature and Air Changes. The maximum temperature
should be limited to 104 degrees F (40 degrees C) if practicable. A maximum
practicable limit on forced ventilation is 30 to 60 air changes per hour.
Included in areas to be ventilated, unless otherwise air conditioned, are: