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The following are the data collected for a boiler using a as the fuel. Find out the boiler efficiency by indirect me Fuel firing rate =5599.17kg/hr Steam generation rate =21937.5kg/hr Steam pressure =43kg/cm2(g) Steam temperature =377C Feed water temperature =96C %CO2 in Flue gas =14 %CO in flue gas =0.55 Average flue gas temperature =190C Ambient temperature =31C Humidity in ambient air =0.0204kg/kg dry air Surface temperature of boiler =70C Wind velocity around the boiler =3.5m/s Total surface area of boiler =90m2 GCV of Bottom ash =800kCal/kg GCV of fly ash =452.5kCal/kg Ratio of bottom ash to fly ash =90:10 Fuel Analysis (in \%) Ash content in fuel =8.63 Moisture in coal =31.6 Carbon content =41.65 Hydrogen content =2.0413 Nitrogen content =1.6 Oxygen content =14.48 GCV of Coal=3501kCal/kg