TERMIUM Plus^®

Record 1,  Textual support,  English

Record number: 1, Textual support number: 1 CONT

There is an alternative between closed-and open-loop systems called standing column wells(SCWs). In a SCW, groundwater is pumped from the base of a deep well and directed to a heat exchanger.... A SCW consists of a long borehole mostly drilled in the bedrock and filled with groundwater... Typical installations use a PVC [polyvinyl chloride] pipe almost as long as the well within which a submersible pump is installed. In a conventional SCW, groundwater is pumped at the bottom of the well through a PVC pipe and returned below the dynamic level in the annular space of the borehole via a rejection pipe.... Before reinjecting the groundwater into the SCW, part of the flow rate can be diverted into a separate injection well. This process is called "bleed" and improves the system performance by attracting water from the undisturbed neighbouring ground through aquifer fractures. The bleed induces heat transfer by advection..., which improves significantly the thermal efficiency of the SCW.  2, record 1, English, - standing%20column%20well

Record 1,  Textual support,  French

Record number: 1, Textual support number: 1 CONT

Le fonctionnement des PCP repose sur l'utilisation de l'eau souterraine comme fluide caloporteur. L'eau est généralement prélevée à proximité de la surface à l'aide d'une pompe submersible et réinjectée à la base du puits. [...] Afin d'améliorer l'efficacité thermique des PCP en période de pointe, un procédé communément appelé «saignée» peut être employé. Cette méthode consiste à purger le PCP d'un faible pourcentage du débit de circulation, afin de stimuler un écoulement souterrain convergent vers le puits. Ce faisant, le renouvellement de l'eau contenue dans le PCP permet de stabiliser rapidement la température du fluide caloporteur à l'approche de la thermopompe.  3, record 1, French, - puits%20%C3%A0%20colonne%20permanente

Record 1,  Textual support,  Spanish

Record 2,  Textual support,  English

Record number: 2, Textual support number: 1 CONT

Molten ash deposits stick to the tubes and wall surfaces, thus, reducing heat transfer and thermal efficiency. This results in reduced steam temperatures, increased fuel firing rates, increased fan power(to overcome larger pressure drops in the convective pass), and high rates of corrosion.  1, record 2, English, - molten%20ash

Record 2,  Textual support,  French

Record 2,  Textual support,  Spanish

Record 3,  Textual support,  English

Record number: 3, Textual support number: 1 CONT

The invention relates with the feed-back control system of a heat exchanger by use of the flow resonance phenomenon which maximizes the heat transfer efficiency by generating the flow disturbances of a heat transfer medium.  1, record 3, English, - flow%20resonance

Record 3,  Textual support,  French

Record number: 3, Textual support number: 1 CONT

L'invention concerne un système de commande à rétroaction d'un échangeur de chaleur, faisant appel au phénomène de résonance de flux, qui permet d'obtenir une efficacité de transfert de chaleur maximale, par le biais de la génération de perturbations de flux d'un support de transfert de chaleur.  1, record 3, French, - r%C3%A9sonance%20de%20flux

Record 3,  Textual support,  Spanish

Record 4,  Textual support,  English

Record number: 4, Textual support number: 1 DEF

The percentage of heat energy that is delivered to the space to be heated.  2, record 4, English, - heat%20transfer%20efficiency

Record 4,  Textual support,  French

Record number: 4, Textual support number: 1 DEF

Pourcentage d'énergie thermique fourni au local à chauffer.  2, record 4, French, - rendement%20de%20transfert%20thermique

Record 4,  Textual support,  Spanish

Record 5,  Textual support,  English

Record number: 5, Textual support number: 1 CONT

Cross-fin coils with staggered copper tubing and aluminum fins for the highest heat transfer efficiency.  1, record 5, English, - cross%2Dfin%20coil

Record 5,  Textual support,  French

Record number: 5, Textual support number: 1 OBS

Proposition par analogie avec d'autres termes techniques où «cross» est traduit par «transversal» et à partir de la description de «ailette» qui se trouve dans le Grand dictionnaire encyclopédique Larousse (voir ci-après).  1, record 5, French, - serpentin%20%C3%A0%20ailettes%20transversales

Record number: 5, Textual support number: 2 OBS

«ailette» : Saillie destinée à augmenter la surface de transmission de chaleur entre une paroi, comme celle d'un tuyau servant au chauffage ou au refroidissement, et le fluide qui le baigne de ce côté. [...] Sur un tuyau, les ailettes peuvent être transversales, longitudinales ou enroulées en hélice.  2, record 5, French, - serpentin%20%C3%A0%20ailettes%20transversales

Record 5,  Textual support,  Spanish