Mechanical Engineering :: Steam Boilers and Engines
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The boiler efficiency is given by (where m = Total mass of water evaporated into steam in kg/h, mf = Mass of fuel in kg/h, C = Calorific valve of fuel in kJ/kg of fuel, h = Total heat of steam in kJ/kg, and hf1 = Sensible heat of feed water in kJ /kg)
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In a boiler, the heat is lost
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The crown of the fire box is made hemispherical in order to resist intense heat in the fire box.
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For maximum discharge through a chimney, the condition is that height of hot gas column producing the draught should be
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Water tube boilers are
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