TERMIUM Plus®

The Government of Canada’s terminology and linguistic data bank.

SYSTEME ASPERSION [2 records]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 2016-11-23

English

Subject field(s)
  • Cooling and Ventilating Systems
  • Fixed Rescue Facilities (fire)
  • Nuclear Power Stations
  • Nuclear Fission Reactors
DEF

A spray system for use in emergencies designed to reduce the concentration of nonvolatile fission products in the containment atmosphere and to reduce the temperature and pressure in the containment building.

OBS

spray cooling: term and definition standardized by ISO in 1997.

OBS

spray cooling system; emergency spray cooling system: terms extracted from the “Glossaire de l’énergie nucléaire” and reproduced with permission of the Organisation for Economic Co-operation and Development.

French

Domaine(s)
  • Systèmes de refroidissement et de ventilation
  • Installations fixes de secours (incendies)
  • Centrales nucléaires
  • Réacteurs nucléaires de fission
DEF

[Système d'arrosage] conçu pour être utilisé dans les cas d'urgence afin de réduire la concentration des produits de fission non volatils dans l'atmosphère de l'enceinte de confinement et pour réduire la température et la pression dans cette enceinte.

OBS

système d'aspersion; système d'aspersion de secours : termes extraits du «Glossaire de l’énergie nucléaire» et reproduits avec l’autorisation de l’Organisation de coopération et de développement économiques.

OBS

système d'aspersion : terme normalisé par l'ISO en 1997.

Spanish

Save record 1

Record 2 - external organization data 2001-06-13

English

Subject field(s)
  • Nuclear Plant Safety
  • Nuclear Power Stations
  • Compartment - Canadian Nuclear Safety Commission
DEF

An energy-absorbing system employing water to limit the value and duration of overpressure within the reactor building following an unintentional loss of coolant.

CONT

Inside the building housing a reactor which is undergoing a major nuclear accident, internal steam pressure can be greatly reduced by using a dousing system to condense the steam. All CANDU reactors are provided with such a dousing system. It is much more difficult to reduce the pressure from non-condensable gases which are formed in great quantities during meltdown.

CONT

The Containment System forms a continuous, pressure-confining envelope around the reactor core and primary heat-transport system. In the CANDU 6 design it consists of a pre-stressed, post-tensioned concrete structure, an automatically-initiated dousing system, building coolers, and a filtered air discharge system. In Ontario Hydro's multi-reactor designs, containment includes a vacuum building connected to all reactor vaults in the plant, with its own dousing system for reducing internal pressure.

French

Domaine(s)
  • Sûreté des centrales nucléaires
  • Centrales nucléaires
  • Tiroir - Commission canadienne de sûreté nucléaire
DEF

Système d'absorption d'énergie qui, à la suite d'une perte accidentelle de caloporteur, utilise de l'eau pour limiter la surpression à l'intérieur du bâtiment d'un réacteur.

OBS

mécanisme d'aspersion : terme extrait du Glossaire de l'énergie nucléaire (1992) et reproduit avec l'autorisation de l'OCDE.

Spanish

Save record 2

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