In a boiler trial observations made are as: Feed water temperature (=30^{circ} mathrm{C}) Boiler pressure (quad=12 mathrm{bar})
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In a boiler trial observations made are as:
Feed water temperature \(=30^{\circ} \mathrm{C}\)
Boiler pressure \(\quad=12 \mathrm{bar}\)
Dryness fraction of steam \(=0.80\)
Coal consumption \(\quad=400 \mathrm{~kg} / \mathrm{h}\)
Feed water supplied \(\quad=3,000 \mathrm{~kg} / \mathrm{h}\)
Calorific value of coal \(\quad=38,000 \mathrm{~kJ} / \mathrm{kg}\)
Calculate the evaporation factor and equivalent evaporation at \(100^{\circ} \mathrm{C}\) in \(\mathrm{kg} / \mathrm{kg}\) of coal. Specific heat of feed water \(=4.18 \mathrm{~kJ} / \mathrm{kgK}\).
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