BLOWDOWN BOILERS CONSERVATION ECONOMICS POWER GENERATION STEAM

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Abstract

A certain amount of water must be removed, either continuously or periodically, from an operating boiler in order to limit the concentration of impurities in the boiler water. Because this water, commonly called blowdown, has been heated, it represents a certain heat value imparted by the fuel, but not available to make steam. It follows, therefore, that if the amount of blowdown can be reduced, a corresponding reduction in fuel costs can be realized for the same steam generation rate. At current fuel costs, even a slight reduction in blowdown can represent a significant cost savings.

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