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Wälzwirkungsgrad

English translation: (storage) cycle efficiency


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GLOSSARY ENTRY (DERIVED FROM QUESTION BELOW)
German term or phrase:Wälzwirkungsgrad
English translation:(storage) cycle efficiency
Entered by: Patrick Johnson
Options:
- Contribute to this entry
- Include in personal glossary

07:54 Jul 23, 2011
German to English translations [PRO]
Tech/Engineering - Energy / Power Generation / Pump-storage power station
German term or phrase: Wälzwirkungsgrad
Hierbei müssen aber hohe Verluste für die Bereitstellung (Wälzwirkungsgrad, Verluste und Kavitationsschäden im Leerlauf der Turbinen, Energie steht nicht mehr für die Sekundärregelung zur Verfügung) in Kauf genommen werden.

Could this simply be rolling efficiency? I cannot find a translation of this anywhere.
Patrick Johnson
Local time: 23:45
(storage) cycle efficiency
Explanation:
What it is:
Dazu wird Strom in Niedriglast- bzw. Niedrigpreisphasen genutzt, um Wasser in ein
Oberbecken zu pumpen. In Hochlast- bzw. Hochpreisphasen wird das Wasser über eine Turbine in ein Unterbecken abgeleitet. Pumpspeicherkraftwerke können ca. <b75 %<b des bezogenen
Pumpstroms zeitversetzt ans öffentliche Stromversorgungsnetz zurückliefern (Umwälzwirkungsgrad).
http://www.anschober.at/files/materialien/104/20100621_Endbe...
If you take these 75% and google for pumped-storage hydro power station + efficiency 75% the cycle efficiency will come up often. Most of the times, though, they just talk about the efficiency(sub (greek) eta).
Selected response from:

Bernd Runge
Germany
Local time: 00:45
Grading comment
Thanks again, Bernd. I will file this one away for future reference.
4 KudoZ points were awarded for this answer



Summary of answers provided
3 +2(storage) cycle efficiency
Bernd Runge


  

Answers


1 hr   confidence: Answerer confidence 3/5Answerer confidence 3/5 peer agreement (net): +2
(storage) cycle efficiency


Explanation:
What it is:
Dazu wird Strom in Niedriglast- bzw. Niedrigpreisphasen genutzt, um Wasser in ein
Oberbecken zu pumpen. In Hochlast- bzw. Hochpreisphasen wird das Wasser über eine Turbine in ein Unterbecken abgeleitet. Pumpspeicherkraftwerke können ca. <b75 %<b des bezogenen
Pumpstroms zeitversetzt ans öffentliche Stromversorgungsnetz zurückliefern (Umwälzwirkungsgrad).
http://www.anschober.at/files/materialien/104/20100621_Endbe...
If you take these 75% and google for pumped-storage hydro power station + efficiency 75% the cycle efficiency will come up often. Most of the times, though, they just talk about the efficiency(sub (greek) eta).

Bernd Runge
Germany
Local time: 00:45
Specializes in field
Native speaker of: Native in GermanGerman
PRO pts in category: 191
Grading comment
Thanks again, Bernd. I will file this one away for future reference.

Peer comments on this answer (and responses from the answerer)
agree  gangels
3 hrs
  -> Thank you very much!

agree  sci-trans
1 day23 mins
  -> Vielen Dank!
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