Modeling a Utility Boiler to Evaluate Radiative Heat Transfer In the next section, we go over an example model designed for studying radiative heat transfer in a utility boiler’s furnace. Further, experimental modeling of furnace enclosures is expensive.Īs an alternative, engineers can build numerical models to properly analyze such enclosures and evaluate thermal efficiency. Radiation is difficult to predict, and its complexity and dependence on the enclosure geometry means that analytical solutions exist only for very simple problems.
Thus, radiation behavior, such as the radiative heat flux on the combustion chamber’s furnace walls, must be accurately accounted for when studying these devices. Radiation is the key heat transfer mechanism in boilers. Licensed under CC BY-SA 3.0, via Wikimedia Commons. Within a furnace, chemical energy is converted into heat energy, which greatly affects the energy conversion process and thus the boiler’s thermal efficiency.Ī retired scotch marine boiler with two coal-burning furnaces. Today, we focus on one boiler design element in particular: the furnace. Optimizing the performance of large power plant boilers, for instance, is a common area of study. When designing power plant and other utility boilers, it’s important to find ways of increasing their lifetime and thermal efficiency while decreasing their pollutant emissions. Investigating Furnace Radiation to Improve Utility Boiler Designs
#Comsol 5.1 radiative heat transfer software
As an alternative, we can use the COMSOL Multiphysics® software to analyze radiative heat transfer in utility boiler furnaces and improve their designs. Studying furnaces in utility boilers requires engineers to account for radiation, which can be difficult to solve for analytically and expensive to study experimentally. One way to design utility boilers with high thermal efficiency is to improve their furnaces - the most important part in their energy conversion process.
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