Economizer & Damper

Economizer

To recover the waste heat from boiler flue gas Dexterous engineering offers customer Economizer. Flue gases from boilers are typically in the range of 230 – 345°C depending upon boiler pressure. Stack Economizers recover some of this heat for pre-heating water. The water is most often used as boiler make-up water or some other need that coincides with boiler operation. Stack Economizers should be considered as an efficiency measure when large amounts of make-up water are used, i.e. when there is no / low condensate return or there is a simultaneous need for large quantities of hot water for some process requirement. The savings potential is based on the existing stack temperature, the volume of make-up water needed, and the hours of operation. Economizers are available in a wide range of sizes, from small coil-like units to very large waste heat recovery boilers with lucrative payback & 5% fuel save option.