A simple combined cycle power generation system can consist of:
Respuesta
a single gas turbine generator
a HRSG (heat recovery steam generator)
A single steam turbine-generator
condenser
all of the above
Pregunta 2
Pregunta
One cause of corrosion in refuse-fired boilers is:
Respuesta
chlorides
fuels
high temperatures
sulphides
nitrous oxides
Pregunta 3
Pregunta
The primary function of a recovery boiler is to process ________
Respuesta
white
green
black
liquor
Pregunta 4
Pregunta
In a Steam Flooding Boiler, In order to keep the salts in the boiler water dissolved and to avoid deposits on the tubes, the steam produced contains _______moisture.
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30%
50%
20%
10%
Pregunta 5
Pregunta
In Black Liquor combustion, the liquor droplets must be ____ enough to minimize entrainement in the combustion gases.
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small
large
dispersed
fine
Pregunta 6
Pregunta
Vibrating grates serve to aid combustion by ____ out the bed of burning biomass
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shaking
leveling
turning
moving
Pregunta 7
Pregunta
Basic refuse incinerators with waste heat recovery have evolved into ____ boilers with integral stokers
Respuesta
packaged
fire tubed
open harth
water-wall
black liquor
Pregunta 8
Pregunta
Which of the following are functions of the auxillary fuel burners in a Black Liquor Recovery Boiler:
1. Stabalize conditions during upsets in the black liquor feed
2. Produce extra steam
3. Burn out the char bed when shutting down.
4. Maintain furnace temperatures.
5. Sustain a stable ignition while establishing a char bed.
6. Raise steam during startup
Respuesta
1,2,3
1,2,3,5,6
4,5,6,
1,2,
3,5
Pregunta 9
Pregunta
In a fluidized bed boiler, combustion can take place at temperatures ranging from ____ deg C to ____deg C instead of normal combustion temperatures of 1600 Deg C for pulverized coal and oil firing.
Respuesta
300,500
200,400
800,900
600,700
Pregunta 10
Pregunta
In a Black Liquor Recovery Boiler, If water contacts molten smelt, a violent explosion will result, it is not a ____ reaction but a _____ reaction