TERMIUM Plus®

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

FLASH VAPORISATION [1 record]

Record 1 2016-02-26

English

Subject field(s)
  • Effects of Heat (Energy Transfer)
  • Fluid Mechanics and Hydraulics (Physics)
  • Oil Refining
DEF

Partial or total vaporization obtained by sudden reduction of pressure. [Definition standardized by ISO.]

CONT

It is true of liquids in general that the lower the pressure on them the lower the boiling temperature and the lower the heat contained in the "saturated" liquid. Thus high-temperature liquids when passed from a region of pressure sufficient for stability into a low-pressure region are not able to contain all the heat originally possessed as heat of fluid, and will be spontaneously partially evaporated by the surplus. This violent readjustment to thermal equilibrium is called "flashing" ...

OBS

instantaneous vaporization; flash vaporization: terms standardized by ISO.

Key term(s)
  • flash vaporisation
  • instantaneous vaporisation

French

Domaine(s)
  • Effets de la chaleur (Transfert de l'énergie)
  • Mécanique des fluides et hydraulique (Physique)
  • Raffinage du pétrole
DEF

Vaporisation partielle, par détente brusque, d'un produit préalablement surchauffé sous pression [...]

OBS

flashing : Traitement complémentaire du cracking des pétroles ayant pour but de donner à l'huile lourde résiduaire une valeur commerciale plus grande en permettant son utilisation comme fuel oil.

OBS

Pluriel : des flashs ou des flashes.

OBS

flashs (pl.) : Cette graphie, puisée des Rectifications de l'orthographe recommandées par le Conseil supérieur de la langue française, est attestée dans le Petit Robert (2004).

OBS

vaporisation instantanée : terme normalisé par l'ISO et l'AFNOR.

Spanish

Campo(s) temático(s)
  • Efectos del calor (Traspaso de energía)
  • Mecánica de fluidos e hidráulica (Física)
  • Refinación del petróleo
DEF

Evaporación brusca o flash por transferencia del agua a recintos a una temperatura superior a la de saturación para la presión existente.

OBS

Se trata de un método utilizado para la desalinización de agua de mar.

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