In part 1 on this topic we presented basic principles of combustion and air system design to show potential benefits of an overfire air (OFA) upgrade. In Part 2 we present data from several of Jansen’s recent OFA upgrades to show measurable reductions in carbon monoxide (CO) emissions. To review,
Operating with an effective overfire air (OFA) system is key to optimizing the combustion process in a biomass boiler and reducing its carbon monoxide (CO) emissions. This post will discuss the basics of combustion optimization and OFA system design. Part 2 will focus on the measured reductions in CO from
The amount of steam generated by a boiler is strongly dependent on two main attributes: the heat capture efficiency of the boiler’s convective sections, and the effectiveness of the furnace combustion system in achieving complete fuel burnout. But there’s more to the equation. Steam generation rates are also a function
When examining boiler performance deficiencies, problems can often be traced to factors outside of the furnace, such as fuel quality. But sometimes the issue is the furnace itself. Jansen uses computational fluid dynamics (CFD) modeling to investigate performance improvements that can be realized through air system upgrades, furnace modifications, or
New, larger economizer ready to be installed in Plymouth, NC. Old economizer in the foreground. Combustion efficiency and heat capture efficiency are two important factors to consider when analyzing a boiler’s overall operating efficiency. Combustion efficiency relates to how effectively a boiler furnace and combustion system is able to combust
