réchauffeur d'air

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 [...]

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.