Improving combustion efficiency

摘要

While environmental regulations get tighter, power plants are also under pressure to improve their production economics. Power plant managers would like to derive the most from their boilers without exceeding the emission limits. One alternative is to add new equipment, which requires significant investments. A better alternative is to first utilise the boiler more efficiently. New technologies make new things possible. Nonlinear modelling is a powerful way of extracting quantitative knowledge of a process in terms of measured variables from production data. One can improve the production economics of a power plant with a little bit of extra effort. When properly implemented, nonlinear models can be valuable tools for the operators, plant managers and R&D engineers. The nonlinear models developed for Fortum's power plant in Naantali have been implemented in suitable software to help to increase the efficiency of combustion.