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Calculate: (i) Boiler efficiency. (ii) Percentage of heat loss in flue gas. (iii) Percentage of heat loss to ash and unburnt coal. (iv) Percentage of heat loss unaccounted for.

Calculate: (i) Boiler efficiency. (ii) Percentage of heat loss in flue gas. (iii) Percentage of heat loss to ash and unburnt coal. (iv) Percentage of heat loss unaccounted for.

Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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Solve the following completely. 1. In a boiler observation made were as follows: Rate of feed water per hour = 1,000 kg Temperature of feed water = 30°C Steam pressure = 10 bar Quality of steam = 0.9 Coal consumption rate per hour = 100 kg Calorific value of coal = 33,000 kJ/kg Mass of ash and unburnt coal= 10 kg/h Calorific value of ash and unburnt coal = 3,000 kJ/kg Quantity of flue gas/kg of coal = 20 kg %3D Discharged gas temperature = 300°C Atmospheric temperature = 20°C Specific heat of flue gas = 1.03 kJ/kg K Calculate: (i) Boiler efficiency. (ii) Percentage of heat loss in flue gas. (iii) Percentage of heat loss to ash and unburnt coal. (iv) Percentage of heat loss unaccounted for.
Transcribed Image Text:Solve the following completely. 1. In a boiler observation made were as follows: Rate of feed water per hour = 1,000 kg Temperature of feed water = 30°C Steam pressure = 10 bar Quality of steam = 0.9 Coal consumption rate per hour = 100 kg Calorific value of coal = 33,000 kJ/kg Mass of ash and unburnt coal= 10 kg/h Calorific value of ash and unburnt coal = 3,000 kJ/kg Quantity of flue gas/kg of coal = 20 kg %3D Discharged gas temperature = 300°C Atmospheric temperature = 20°C Specific heat of flue gas = 1.03 kJ/kg K Calculate: (i) Boiler efficiency. (ii) Percentage of heat loss in flue gas. (iii) Percentage of heat loss to ash and unburnt coal. (iv) Percentage of heat loss unaccounted for.
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