
Boiler Manual Refresher 1
Quiz by Jon Francis
Tag the questions with any skills you have. Your dashboard will track each student's mastery of each skill.
Ability of water to conduct an electric current?
Higher Total Dissolve Solids- Higher?
Most effective intrument for measuring conductivity?
Build up of solid materials because of the reaction from tube metal and other impuritiesn the water?
When oxygen dissolves in the feedwater, it becomes heated and will react with the internal surface of the boiler which can cause what?
High conductivity + Low PH which leads to another aspect of corrosion
Occurs when steam from boiler has become contaminated from boiler water solids.
Give 1, variety of ways (External) to decrease conductivity?
Give 1, variety of ways (Internal) to decrease conductivity?
Diesel oil heat input system is used for ______ to prepare the main fuel.
Limestone effective at _______ C. Burning produces Sulfur dioxide which reacts with limestone to produce calcium sulfate.
Separates the solids to gas (ash) during time to enters the cyclone.
___% of combustion comes from Primary / Fluidizing Air.
zones of combustion, located at lower section of furnace.
Zone of Combustion, located at upper section of furnace?
Give only 1, Where heat is removed from a CFB System.
Bed Material Mean Particle Size?
Primary Air pre heated to what temp?
Secondary Air preheated to what temp?
Cyclone are design to remove ___ % of the solid entertained by the gas from the combustion chamber?
Furnace Temperature is affected by the following?
Normal Furnace Temperature?
Grid Nozzle Distance, ____ inches centers in an evenly distributed grid.
Purposes of Refractory Lining?
Start Up Burners should be retracted when furnace temperature reaches?
2 Kinds of heat transfer in boiler / furnace.
Air Pre Heater cools down the flue gas to what temp?
Air pollutant cause by combustion?
_____ backpass design is an additional recovery ash material which occurs at the bottom of GAH, velocity is 1-1.5 m/s.
____ & injection of sand helps with recirculation of heavier ash.
Boiler Insulation, from 177C up to operating temperature, the rate should not excess ____ C /hr (During Initial Start Up)
Boiler Insulation, at ____ C, the onsulation will smoke, smoke will subside after the unit has been at operating temperature for 4 hours.
Areas around sooth blowers are suspectible to?
Uncombined silicon dioxide, important dust exposure to look after.
Maximum Feed rate of each coal feeder?
Bottom Ash cooled by BASC to 200- ____ C?
use only when the unit is essentially cooled down.
FHI CFB Type Reheater Boiler ; Feed Water Temperature?
FHI CFB Type Reheater Boiler ; Main Steam Pressure?
Compressed Air (PA and IA) Dew point degree C?