Find more about technologies that make biofuel boilers more efficient, namely the use of waste heat after power plants.
Why use waste heat?
It helps to increase the economic efficiency of heat generating units, reduce fuel consumption and emissions of pollutants into the atmosphere. For biomass-fired plants, deep flue gas recovery systems can be used in particular as gas cleaning equipment to reduce emissions of solid particles into the atmosphere.
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In conventional boilers, a large amount of energy is lost to the environment through the heat released with the flue gases. Usually, the temperature of the flue gases after the boilers is kept at the level of 140-220 C, which leads to a loss of 8-15% of fuel energy. Combustion products containing water vapor are formed as a result of fuel combustion. By adding a flue gas recycler to a conventional boiler, it is possible to recover a significant part of the apparent and latent heat energy and significantly increase the thermal efficiency of the installation.
Usually, the use of condensation utilisers (economizers) on gas boilers allows to additionally obtain up to 12% of thermal energy, and on biofuel boilers — up to 35%, depending on the humidity of the biofuel and the temperature of the water used for cooling.
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SAF is a communication platform that brings together agribusiness stakeholders and aims to establish strong links between market players and introduce sustainable approaches in agriculture. For this platform, our team prepares verified professional content on the bioenergy sector.