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Combustion optimisation

Whether your organisation is looking for emissions reduction, combustion improvements, efficiency improvements or a combination of these services, then combustion optimisation will be an important consideration in the scope of the project.

It is well known that due to the extended firing process required to control NOx, reduction techniques typically result in increased unburnts, carbon and carbon monoxide emissions. Sometimes, in a poorly-engineered system the level of unburnts can be so high that the air flow has to be increased to the firing system to clean them up, which in turn raises NOx.

In a worst case scenario, the increase in air required to clean up the unburnts, results in such a high concentration of NOx that the NOx goal is not met, or, if the NOx objectives are met, the unburnts are produced at an unacceptably high level.

However, the effect on combustion can be minimised or even wholly negated by combustion optimisation. A comprehensive combustion optimisation programme ensures fuel and air are balanced within tight tolerances, before being delivered to the combustion system.

In addition, running a boiler or furnace at high excess air, detracts from maximising the thermal efficiency of the plant and results in higher fuel costs.

RJM has a number of proven techniques to ensure that a properly optimised system is realised.