German translation: (Volumen-)Aufblähung; Expansionssituation
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English to German translations [PRO] Tech/Engineering - Energy / Power Generation / Steam Drums
English term or phrase:swell
In Verbindung mit der Frage nach "shrink":
If the steam pressure within the drum decreases due to an increase in steam flow, the water temperature within the drum is raised above the saturation temperature for that pressure. This causes some of the water to form additional steam bubbles, and the steam bubbles that are raising in the riser tubes will also expand. To maintain the continued flow of water through the riser tubes, the drum level will increase (***swell***).
The amount of level rise is dependent on the steam pressure within the steam drum. The more the steam pressure decreases the greater the rise in drum level. The result of ***swell*** is that the level in the steam drum increases even though additional mass is actually leaving the steam drum.
Explanation: As in many scientific articles, I think this could have been written rather more clearly.
For example, "the drum level will increase ("swell")" were better written: "the drum WATER level will rise". I can't see the "drum level" altering anyway, can you? There is no basic need to explain (or use) the term "swell" at all, AFAICS.
Scientists may be ace at their chosen trade, but they often have difficulties with language (don't we all?)...
David Moore Local time: 09:33 Works in field Native speaker of: English PRO pts in category: 20