Boiler economizer

fuel

With the economizer, the heat, steam or power generation facilities can recover some of the heat on the hot smoke gases coming out of the boilers or furnaces and going to the chimney, resulting in a boiler or plant efficiency increase of 3% to 15%. Depending on the increase in efficiency, fuel savings can be achieved. The greater the difference between the smoke gas temperatures entering and exiting the economizer, the greater the efficiency increase. However, when the economizer gas outlet temperature drops below a certain temperature, acid gases that may cause corrosion will begin to condense. To prevent this, it should be kept in mind that the temperatures of the waste gases cannot be reduced to a certain degree. It should noted that every 20 °C drop in flue gas temperature provides a 1% increase in boiler efficiency. The return on investment of economizer applications is between 1-3 years.