292 Chapter 14 Stack—an opening at the top of the boiler that is used to remove flue gas, p. 297. Steam drum—the top drum of a boiler where all of the generated steam is collected before entering the distribution system, p. 293.Steam trap—a device used to remove condensate or liquid from steam systems, p. 294.
Read MoreTherefore, good internal boiler water treatment programs are necessary. DEPOSITS. Common feedwater contaminants that can form boiler deposits include calcium, magnesium, iron, copper, aluminum, silica, and (to a lesser extent) silt and oil. Most deposits can be classified as one of two types ( Figure 12-1 )
Read MoreSteam outlet velocity at Actual operating pressures 4,500 ft/min Ideal top end velocity which will allow for some upset water conditions 5,000 ft/min OK velocity with high quality boiler water and perfect steam system piping 5,500 ft/min Some boiler water 6,000 ft
Read MoreSteam outlet velocity at Actual operating pressures 4,500 ft/min Ideal top end velocity which will allow for some upset water conditions 5,000 ft/min OK velocity with high quality boiler water and perfect steam system piping 5,500 ft/min Some boiler water 6,000 ft
Read MoreBoiler efficiency is a measure of the goodness of the chosen process and equipment to transfer combustion heat to the heat in steam. Boiler efficiency can be defined as the ratio of the useful heat output to the total energy input. (3.1) η = Q abs Q in. where. η is boiler efficiency.
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