Ljungström air preheater
= Ljungström air preheater
{wiki=Ljungström_air_preheater}
The Ljungström air preheater is a type of heat exchanger that is primarily used in industrial applications, particularly in coal-fired power plants and large industrial boilers, to recover waste heat from flue gases. It plays a crucial role in improving energy efficiency and reducing fuel consumption by preheating the incoming combustion air before it enters the furnace or boiler.