Glossary entry (derived from question below)
French term or phrase:
AUXILIAIRES (ELECTRIQUES)
English translation:
(unit) auxiliaries
French term
AUXILIAIRES (ELECTRIQUES)
Les auxiliaires d’une tranche peuvent être entièrement isolés
Les alimentations des auxiliaires sont réparties par groupe
Auxiliaires is another word which crops up a lot in this document which is a proposal for the development of a Combined Cycle Power Plant.
I've been using 'Auxiliary equipment' or 'auxiliary units' - perhaps there is a more specific term? They are divided into 4 groups in the document:
Auxiliaires de groupe
Les auxiliaires de production
Les auxiliaires prioritaires
Les auxiliaires de sécurité
Thanks!
5 | (unit) auxiliaries |
Johannes Gleim
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4 | auxiliaries |
Tony M
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Non-PRO (2): Bashiqa, Yvonne Gallagher
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Proposed translations
(unit) auxiliaries
any auxiliary equipment specific to the unit and indispensable for its operation
Examples: mills, circulating pumps, induced draught fans.
fr auxiliaires de tranche
ensemble des dispositifs auxiliaires affectés à la tranche et qui sont indispensables à son fonctionnement
Exemples: broyeurs, pompes de circulation, ventilateurs de tirage.
http://www.electropedia.org/iev/iev.nsf/display?openform&iev...
en common auxiliaries
a group of auxiliary equipment which is common to the unit and the power station
Examples: lighting, compressors.
fr auxiliaires généraux
ensemble des dispositifs auxiliaires communs à la tranche et à la centrale
Exemples: éclairage, compresseurs.
http://www.electropedia.org/iev/iev.nsf/display?openform&iev...
en auxiliary circuit (of an assembly)
all the conductive parts of an assembly of switchgear and controlgear included in a circuit (other than the main circuit) intended to control, measure, signal and regulate
NOTE – The auxiliary circuits of an assembly include the control and auxiliary circuits of the switching devices.
fr circuit auxiliaire (d'un ensemble)
toutes les pièces conductrices d'un ensemble insérées dans un circuit, autre que le circuit principal, destinées à la commande, la mesure, la signalisation et la régulation
NOTE – Les circuits auxiliaires d'un ensemble comprennent les circuits de commande et les circuits auxiliaires des appareils de connexion
http://www.electropedia.org/iev/iev.nsf/display?openform&iev...
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Note added at 13 hrs (2012-11-27 22:50:04 GMT)
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Note to 'ombined Cycle Power Plant'
Alpiq is planning to build a modern gas-fired combined-cycle power plant in the small commune of Monchy-au-Bois, some 180 kilometers north of Paris.
Alpiq has founded the company 3CA ("Centrale à Cycle Combiné de l'Artois") for the purpose of planning, building and operating the power plant.
http://www.alpiq.com/what-we-offer/our-assets/thermal-power-...
■The Yazd integrated solar combined cycle power station is a hybrid power station situated near Yazd, Iran which became operational in 2009. It is the world's first combined cycle power plant using solar power and natural gas. The plant has a capacity of 467 MW and uses solar energy to augment its steam generation by concentrating solar power technology. Yazd integrated solar combined cycle power station by the start of 2010 was the eight largest solar power plant in the world.
■La centrale électrique de Yazd est une centrale à cycle combiné solaire intégré électrique à cycle combiné situé près de Yazd, en Iran. Elle est opérationnelle depuis 2009. C'est la première centrale à cycle combiné utilisant l'énergie solaire et le gaz naturel. La centrale a une puissance nominale de 467 MW et utilise l'énergie solaire pour augmenter sa production de vapeur en concentrant l'énergie solaire. Au début 2010, la centrale à cycle combiné de Yazd était parmi les huit plus grandes centrales solaires au monde.
http://dbpedia.org/page/Yazd_integrated_solar_combined_cycle...
See also http://www.proz.com/kudoz/french_to_english/science/306175-c...
L'expression cycle combiné (CC), déclinée en (CCPP pour combined cycle power plant), ou CCGT (combined cycle gas turbine ) caractérise un mode combiné de production d'énergie ou une centrale utilisant plus d’un cycle thermodynamique.
:
Le moteur thermique transforme une partie de l’énergie fournie par le combustible en travail moteur pouvant ensuite être converti en électricité au moyen d'un générateur.
Cette fraction (généralement moins de 50 %), dépend du cycle thermodynamique choisi ainsi que des températures supérieure et inférieure atteintes par le cycle.
Pour des températures données, le cycle de Carnot possède l’efficacité énergétique théorique maximale.
En combinant deux cycles, voire plus, tel que le cycle de Brayton et de Rankine, on peut augmenter l'efficacité énergétique du système. Les plus récentes centrales à cycle combiné au gaz atteignent ainsi des rendements sur PCI (Pouvoir calorifique inférieur) de plus de 60 %, contre 37 % pour les centrales à gaz classiques[1]. Le gaz et le fioul domestique peuvent être utilisés directement. Il existe également des installations utilisant la gazéification d'autres combustibles comme le charbon : les centrales de type Cycle combiné à gazéification intégrée (CCGI).
http://fr.wikipedia.org/wiki/Centrale_à_cycle_combiné
In electric power generation a combined cycle is an assembly of heat engines that work in tandem off the same source of heat, converting it into mechanical energy, which in turn usually drives electrical generators. The principle is that the exhaust of one heat engine is used as the heat source for another, thus extracting more useful energy from the heat, increasing the system's overall efficiency. This works because heat engines are only able to use a portion of the energy their fuel generates (usually less than 50%). In an ordinary (non combined cycle) heat engine the remaining heat (e.g., hot exhaust fumes) from combustion is generally wasted.
Combining two or more thermodynamic cycles results in improved overall efficiency, reducing fuel costs. In stationary power plants, a widely used combination is a gas turbine (operating by the Brayton cycle) burning natural gas or synthesis gas from coal, whose hot exhaust powers a steam power plant (operating by the Rankine cycle). This is called a Combined Cycle Gas Turbine (CCGT) plant, and can achieve a thermal efficiency of around 60%, in contrast to a single cycle steam power plant which is limited to efficiencies of around 35-42%. Many new gas power plants in North America and Europe are of this type. Such an arrangement is also used for marine propulsion, and is called a combined gas and steam (COGAS) plant. Multiple stage turbine or steam cycles are also common.
http://en.wikipedia.org/wiki/Combined_cycle
auxiliaries
Reference comments
Power Generation Energy Efficient Design of Auxiliary Systems in Fossil-Fuel Power Plants
In power plants, auxiliaries serve to keep the steam-water cycle safely circulating, and to return it to its thermodynamic starting point.
Without these auxiliary systems, the steam-water cycle would suffer either an immediate collapse or a dangerous a
Discussion