Definition of "feedwater" [feedwater]

• Water added to a boiler to replace that lost during operation (noun)

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• "They did this with the manual control valves on the main emergency feedwater system, putting stuff around them so thickly that during the TMI accident an operator had to literally hang by his knees from an overhead pipe and attempt to open them (these are hatch-size wheels) sans leverage."
• "Recall that 6 POUNDS of uranium fuel clogging a resin line in the standby demineralizer caused the accident, that lousy core had done an incurable job on the plant well before water got sucked into the stupidly designed instrumentation air supply (tripping both main and emergency feedwater supplies)."
• "Small-break LOCA [and pressure leak], total loss of feedwater (heat exchange) for 8 minutes (steam generators boiled dry at 2 minutes), scram failure at core central, hot leg's off the scale."