Solve the following completely.1. In a boiler observation made were as follows:Rate of feed water per hour = 1,000 kgTemperature of feed water =30°CSteam pressure= 10 barQuality of steam = 0.9Coal consumption rate per hour = 100 kgCalorific value of coal = 33,000 kJ/kgMass of ash and unburnt coal= 10 kg/hCalorific value of ash and unburnt coal = 3,000 kJ/kgQuantity of flue gas/kg of coal = 20 kg%3DDischarged gas temperature = 300°CAtmospheric temperature = 20°CSpecific heat of flue gas = 1.03 kJ/kg KCalculate:(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.

all the given data in ques to be used heat generated by the burning of coal per hour; Ha Ha=…

Answered: Calculate: (i) Boiler efficiency. (ii)…

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

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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Question

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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