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19:34 Feb 22, 2008
This question was closed without grading. Reason: Answer found elsewhere
English to Italian translations [PRO] Tech/Engineering - Other / Coke Drum Bottom Unheading Device
English term or phrase:Feed switch-in
Feed switch-in creates a thermal gradient through the gate and seats of the unheading device components.
Prior to switch-in, the purge steam is near the normal rate. After feed switch-in, the steam flow rises from the normal rate and reaches a plateau then drops back to the normal rate after component temperatures have reached equilibrium values.