What is the difference between self-generated steam and externally supplied steam?

2016-05-11View Original

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What is the difference between self-generated steam and externally supplied steam?

Reply #22016-05-11

If steam is generated on-site, gas or fuel must be burned to produce it, which reduces the overall efficiency.

Reply #32016-05-13

For a unit, self-generated steam means that there is waste heat available to be used for steam production, similar to catalytic steam generation; whereas externally supplied steam means that the steam is provided entirely through the pipeline network. Under normal conditions this isn’t a problem, but in the event of a steam supply outage, a unit that generates its own steam can close the isolation valves to ensure the continued operation of its own processes, while a unit that relies on externally supplied steam has no choice but to wait for other units to provide steam.

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