The Complete Steam Guide

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What are redundant lines and how do they impact energy consumption?

When steam flows through the distribution network there are some fixed distribution losses. These losses are in the form of condensation of steam due to radiation losses.

Due to frequent changes in the plant and expansions, often the distribution network contains lines which may not be connected to equipment that are in use. Often these lines continue to remain charged with steam. Given their disuse such lines also may not get focused on for maintenance and direct leaks or trap failures on such lines in addition to the radiation losses will only add to the distribution loss.

Such lines should be identified and either isolated or removed to reduce the fixed distribution piping losses.

Similarly, certain sections of the plants are operational only for a portion of the year. Lines supplying these sections should also be isolated to reduce the unnecessary steam consumption and thus save fuel.