That Eat Away Your Profits
Boiler Losses That Eat Away Your Profits
Loss due to dry flue gas
The temperature of the flue gas is one of the main sources of energy losses during boiler operation. Flue gases carry heat with them and release it into the environment because their temperature is higher than the ambient temperature. The loss will be greater the higher the flue gas temperature.
Loss due to moisture in fuel
Loss due to excess air
Despite the fact that air is necessary for complete fuel combustion, utilizing more air than is required could be costly since excess air is cooler than required and absorbs heat from the fuel flame. It further causes the heat transfer to the boiler to be reduced. This air, along with waste flue gases, carries this heat away. As a result, boiler systems waste energy when there is too much air. For every 10% reduction in excess air, boiler efficiency increases by 0.5%.
Heat loss due to incomplete combustion
The supply of air provides the oxygen needed for continuous and complete fuel burning. In total combustion, carbon and oxygen react to form carbon dioxide, while hydrogen and carbon dioxide react to form water. When there is insufficient air, carbon is oxidised, producing CO instead, which produces less heat and results in incomplete combustion.