The boiler economizer is an indispensable mechanical device for coal fired boilers, and is located at the boiler flue, where heat is captured from the flue gas in order to pre-heat cold water inlet or heat the boiler feed water.
Use Feedwater Economizers for Waste Heat Recovery A feedwater economizer reduces steam boiler fuel requirements by transferring heat from the flue gas to incoming feedwater. Boiler flue gases are often rejected to the stack at temperatures more than 100°F to 150°F higher than the temperature of the generated steam. Generally, boiler ...
The economizer typically transfers this waste heat to the boiler's feed-water or return water circuit, but it can also be used to heat domestic water or other process fluids. Capturing this normally lost heat reduces the overall fuel requirements for the boiler.
Considerations When Selecting a Condensing Economizer Boilers equipped with condensing economizers can have an overall efficiency that exceeds 90%. A condensing economizer can increase overall heat recovery and steam system efficiency by up to 10% by reducing the flue gas temperature
Can HD Economizers be used on hot water boilers? Yes, although they are sized differently on hot water vs. steam boilers. Normally due to their high flow rate, boiler economizers are designed for this flow imbalance.
Superior offers models to cover the smallest commercial boilers to the largest industrial watertube boilers. Our software also calculates the heat recovery for condensing applications. All Superior economizers provide for easy ongoing maintenance featuring removable tubes that connect to the headers with a compression fitting.
The economizer in Boiler tends to make the system more energy efficient. In boilers, economizers are generally Heat Exchangers which are designed to exchange heat with the fluid, generally water. Boiler Economiser and Waste Heat Recovery Concept. Boilers are generally designed to produce steam from water.