Fuels and Combustion In general, the limit of inflammability/explosion limit of fuel gases is widened by the Use of pure oxygen for combustion instead of air Increase in temperature (i.e. preheating) All of these Increase in gas pressure Use of pure oxygen for combustion instead of air Increase in temperature (i.e. preheating) All of these Increase in gas pressure ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion While the first commercial low temperature coal carbonisation plant is located at Neyveli (in Chennai), the second such plant has been built at Dhanbad Dankuni (West Bengal) Raniganj Singreni (AP.) Dhanbad Dankuni (West Bengal) Raniganj Singreni (AP.) ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Beehive coke oven Facilitates by-products recovery Gives larger yield of coke (around 85%) as compared to by-product ovens Produces coke with very poor strength Takes 2-3 days for coking of coal but requires no external fuel for heating Facilitates by-products recovery Gives larger yield of coke (around 85%) as compared to by-product ovens Produces coke with very poor strength Takes 2-3 days for coking of coal but requires no external fuel for heating ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion The average molecular weight of a flue gas having the composition by volume as CO₂ = 25%, O₂ = 25%, N₂ = 50% will be 47.3 27.6 23 42.9 47.3 27.6 23 42.9 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Mott and Wheeler test is conducted on coke to find its Volatile matter content Reactivity with O₂ Phosphorus content Abradability Volatile matter content Reactivity with O₂ Phosphorus content Abradability ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Combustion of pulverised coal as compared to that of lump coal Develops a low temperature flame Develops a non-luminous flame Provides a lower rate of heat release Can be done with less excess air Develops a low temperature flame Develops a non-luminous flame Provides a lower rate of heat release Can be done with less excess air ANSWER DOWNLOAD EXAMIANS APP
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