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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1.1 Determine the electrical power supplied to a boiler when the temperature of the enteringwater is 20 C and the exiting temperature is 89 C. The flow of.the pressured water is 2 Kg/s. There is anegligible pressure drop through this boiler and it operates at a constant pressure of 3 bars. The specificheat is c = 4,370 J/(Kg K). There is a 1.5(105) W rate of heat loss from the boiler during this process to asurrounding at 293.2 k. Consider steady state conditions.1.2 Calculate the total rate of entropy production in Problem 1.1.1.3 Calculate the total rate of exergy destruction (W) in Problem 1.1. The dead statetemperature is 293.2 K and pressure is 1 bar.1.4 Calculate the mass flowrate of fuel (natural gas, CH4) required to heat the water flow to theconditions of problem 1.1 if the electrical heating device is replaced with a gas fired boiler. The highheating value (HHV) of the fuel is 50.02 MJ/kg.1.5 Calculate the exergy destroyed in the process described by problem 1.4. The exergy…
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