TERMIUM Plus®

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

air preheater [2 records]

Record 1 2007-10-30

English

Subject field(s)
  • Ovens, Furnaces and Boilers (Heating)
DEF

A device used in steam boilers to transfer heat from the flue gases to the combustion air before the later enters the furnace.

French

Domaine(s)
  • Fours et chaudières (Chauffage)
CONT

Réchauffeurs d'air. Leur utilité [...] est de récupérer une certaine quantité de chaleur pour permettre de brûler, sans apport de combustible auxiliaire, des ordures à bas pouvoir calorifique.

Spanish

Campo(s) temático(s)
  • Hornos y calderas (Calefacción)
Save record 1

Record 2 2007-10-30

English

Subject field(s)
  • Ovens, Furnaces and Boilers (Heating)
  • Steam-Powered Machines and Condensers
  • Thermal Power Stations
DEF

A component of a steam-generating unit that absorbs heat from the products of combustion after they have passed through the steam-generating and superheating sections.

CONT

Heat recovered from the gas is recycled to the furnace by the combustion air and is absorbed in the steam-generating unit, with a resultant gain in overall thermal efficiency ... Air heaters frequently are used in conjunction with economizers, because the temperature of the inlet air is less than that of the feedwater to the economizer ...

CONT

Air heaters are usually classed as recuperative or regenerative types. Both types depend upon convection transfer of heat from the gas stream to a metal or other solid surface and upon convection transfer of heat from this surface to the air.

PHR

Regenerative-type, rotary regenerative, plate-type, tubular air heater.

French

Domaine(s)
  • Fours et chaudières (Chauffage)
  • Machines à vapeur et condenseurs
  • Centrales thermiques
DEF

[...] récupérateur de chaleur, utilisé concurremment avec l'économiseur pour pousser au maximum le refroidissement des fumées; il est placé après l'économiseur, sur le parcours de celles-ci, parce que la température de l'eau d'alimentation, à l'entrée de l'économiseur, est supérieure à celle de l'air frais.

CONT

Les centrales thermiques conventionnelles posent des problèmes d'épuration d'effluents liquides divers [...], tels que les éluats de régénération des échangeurs d'ions, les effluents alcalins de lavage des réchauffeurs d'air [...]

Spanish

Campo(s) temático(s)
  • Hornos y calderas (Calefacción)
  • Máquinas de vapor y condensadores
  • Centrales térmicas
Save record 2

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