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Posted by Harold hydronicnetwork.net on July 18, 2002 at 19:19:45:
In Reply to: boiler explosions posted by dpbeaird on July 18, 2002 at 16:42:17:
This is a strange question, one that seems to be a question made up to fill enough questions to give a test in a school by someone who did not think of all the possibilities or a lawyer looking for a glib answer. As boilers are meant to be started up to provide steam quickly or slowly, with varied loads, and then shut down for varied reasons with different timing, the question is not directly answerable as a multiple choice, but would require an essay on each condition.
A boiler is meant to operate safely under any of these conditions, so the manner in which it was maintained, treated when it was started up or shut down, would be contributory factors to an explosion. The most important cause would be operator and/or maintenance error.