A typical steam generator has a steam drum at the top of the boiler that provides the water-to-steam interface. The water level in the drum is monitored to regulate the flow of steam and feedwater. This is a critical steam generator control function, so accurate and reliable process flow measurement is …
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– Steam pipes • Pressure vessels, unless part of the boiler "system" are not considered part of the Regulations. • Boilers, are defined as – Any closed vessel exceeding 22.75 liters (5 gallons) in capacity which is used expressly for generating steam under
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In practice, because of turbulence and splashing, as bubbles of steam break through the water surface, the steam space contains a mixture of water droplets and steam. Steam produced in any shell-type boiler, where the heat is supplied only to the water and where the steam remains in contact with the water surface, may typically contain around 5% water by mass.
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