Fuels and Combustion Use of pulverised coal in boiler furnace provides High calorific value Less erosion on furnace walls Better combustion Smokeless burning High calorific value Less erosion on furnace walls Better combustion Smokeless burning ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion In Lurgi coal gasifier, Larger quantity of coal can be processed Entrainment of solids is higher Coking coals cannot be used Low carbon conversion efficiency is achieved Larger quantity of coal can be processed Entrainment of solids is higher Coking coals cannot be used Low carbon conversion efficiency is achieved ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Producer gas containing least amount of tar is produced by the Atmospheric pressure gasification of coal (e.g., in Kopper-Totzek gasifier) High pressure gasification of coal (e.g. in Lurgi gasifier) Partial combustion of coal Partial combustion of large size (< 50 mm) coke Atmospheric pressure gasification of coal (e.g., in Kopper-Totzek gasifier) High pressure gasification of coal (e.g. in Lurgi gasifier) Partial combustion of coal Partial combustion of large size (< 50 mm) coke ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion The calorific value of natural gas is about __________ kcal/Nm³. 35, 000 10, 000 25, 000 2500 35, 000 10, 000 25, 000 2500 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion A sooty flame can be made non-luminous by Shutting air supply Admitting more air Shutting gas supply Admitting more gas Shutting air supply Admitting more air Shutting gas supply Admitting more gas ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion As time passes, the calorific value of stored coal Increases Remains unaltered May increase or decrease (depends on the method of storage) Decreases Increases Remains unaltered May increase or decrease (depends on the method of storage) Decreases ANSWER DOWNLOAD EXAMIANS APP
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