3.2 special Boiler Designs

Question 1 of 10

1

A simple combined cycle power generation system can consist of:

Select one of the following:

a single gas turbine generator
a HRSG (heat recovery steam generator)
A single steam turbine-generator
condenser
all of the above

Explanation

Question 2 of 10

1

One cause of corrosion in refuse-fired boilers is:

Select one of the following:

chlorides
fuels
high temperatures
sulphides
nitrous oxides

Explanation

Question 3 of 10

1

The primary function of a recovery boiler is to process ________

Select one of the following:

white
green
black
liquor

Explanation

Question 4 of 10

1

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.

Select one of the following:

30%
50%
20%
10%

Explanation

Question 5 of 10

1

In Black Liquor combustion, the liquor droplets must be ____ enough to minimize entrainement in the combustion gases.

Select one of the following:

small
large
dispersed
fine

Explanation

Question 6 of 10

1

Vibrating grates serve to aid combustion by ____ out the bed of burning biomass

Select one of the following:

shaking
leveling
turning
moving

Explanation

Question 7 of 10

1

Basic refuse incinerators with waste heat recovery have evolved into ____ boilers with integral stokers

Select one of the following:

packaged
fire tubed
open harth
water-wall
black liquor

Explanation

Question 8 of 10

1

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

Select one of the following:

1,2,3
1,2,3,5,6
4,5,6,
1,2,
3,5

Explanation

Question 9 of 10

1

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.

Select one of the following:

300,500
200,400
800,900
600,700

Explanation

Question 10 of 10

1

In a Black Liquor Recovery Boiler, If water contacts molten smelt, a violent explosion will result, it is not a reaction but a _ reaction

Select one of the following:

chemical, physical
Physical, Chemical
Condensing, Evaporating
Acid-base, Endothermic

	Created by TRAVIS CANNING over 8 years ago

Quiz on 3.2 special Boiler Designs, created by TRAVIS CANNING on 14/01/2016.

3.2 special Boiler Designs

Question 1 of 10

A simple combined cycle power generation system can consist of:

Select one of the following:

Explanation

Question 2 of 10

One cause of corrosion in refuse-fired boilers is:

Select one of the following:

Explanation

Question 3 of 10

The primary function of a recovery boiler is to process ________

Select one of the following:

Explanation

Question 4 of 10

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.

Select one of the following:

Explanation

Question 5 of 10

In Black Liquor combustion, the liquor droplets must be ____ enough to minimize entrainement in the combustion gases.

Select one of the following:

Explanation

Question 6 of 10

Vibrating grates serve to aid combustion by ____ out the bed of burning biomass

Select one of the following:

Explanation

Question 7 of 10

Basic refuse incinerators with waste heat recovery have evolved into ____ boilers with integral stokers

Select one of the following:

Explanation

Question 8 of 10

Select one of the following:

Explanation

Question 9 of 10

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.

Select one of the following:

Explanation

Question 10 of 10

In a Black Liquor Recovery Boiler, If water contacts molten smelt, a violent explosion will result, it is not a ____ reaction but a _____ reaction

Select one of the following:

Explanation

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.

In a Black Liquor Recovery Boiler, If water contacts molten smelt, a violent explosion will result, it is not a reaction but a _ reaction