.) A 300 MW pulverized coal-fired power plant of 42% efficiency uses coal with an ash content of 19% and a ating value of 24,000 kJ/kg. Assume 28% of the ash content goes up the stack as particulate matter in the flue gas e PM emission is controlled by an ESP which has the following efficiencies and weight distribution in the given siz ges. Find the fly ash emitted in g/s. size efficiency (%) wt% in flue gas 0-5 70 7 5-10 92.5 19 10-20 96 21 20-40 99 24 >40 100 29

2. (#47ppS-37TrD) - A water tube boiler evaporated 6.05 kg of water per sec from a feed water temperature of 104.44 deg C to steam at 1241 kPa and quality of 0.97, weight of coal fuel per sec 0.57 kg, high heat value of the coal as fired, 11,800 Btu/lb Steam Properties: At 104.44 deg C hf At 1241.1 kPa = 437.78 (interpolated) h₁ = 805.29 = hg 1980.6 (interpolated) a) Determine the rate of heat absorption in kJ/kg

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Ans only 3.2b