In modern pulverized coal firing facilities, the high ____ between the coal and the combustion air stream causes most of the ash to be carried over with the stack effluents.
Respuesta
turbulence
temperatures
quality
flow
Pregunta 2
Pregunta
The _____ fan provides the volume of combustion air to the boiler
Respuesta
induced draft
forced draft
cross draft
balanced draft
Pregunta 3
Pregunta
Dust laden flue gas from the boiler enters the ________ precipitator that contains a charging electrode. The dust particles receive a charge of electricity and become electrified.
Respuesta
electrostatic
electric
cyclone
mist
Pregunta 4
Pregunta
The ______ system involves the use of solids handling equipment, such as scraper conveyors, bucket elevators, and conveyor belts.
Respuesta
ash
mechanical
pneumatic
Hydro
Pregunta 5
Pregunta
The ______ fan is used to remove the hot flue gases from the boiler.
Respuesta
induced draft
forced draft
cross draft
balanced draft
Pregunta 6
Pregunta
In the ____ scrubbing process, the heat of the flue gas is used to dry finely atomized slurry of alkaline reactants.
Respuesta
dry
wet
liquid
absorption
Pregunta 7
Pregunta
Louvers are installed in the _____ to direct the air to the base of the flame
Respuesta
fan
burner
windbox
ducts
Pregunta 8
Pregunta
The theory of particle precipitation is based on the fact that, when a moving particle changes its _____, a force is generated as a consequence
Respuesta
direction
velocity
humitity
charge
Pregunta 9
Pregunta
Recovery systems for the removal of SO2 can be classified into the two major types
Respuesta
solid, liquid
wet, dry
large,small
adsorption, absorption
Pregunta 10
Pregunta
Solid pollutants are dust particles known as ash, consisting mainly of the ____ parts of the fuel