Optimization of the operation of circulation pumps in the wet flue gas desulfurization system

In the era of increasing renewable energy (RES) adoption and energy market development, the dynamic and flexible operation of power units based on pulverised coal-fired boilers is becoming essential. Numerical calculations and computer simulations are crucial in optimizing combustion processes, improving energy efficiency, and minimizing harmful atmospheric emissions, thereby reducing negative environmental impacts. Optimizing the operation of wet flue gas desulphurisation (WFGD) installations is becoming a key technological and strategic issue, enabling the energy and processing industries to comply with strict environmental regulations. This article presents an approach to operating a wet flue gas desulphurisation installation, focusing on the optimal operation of circulation pumps and the potential for significant cost savings. A CFD model of the OP-430 boiler combustion chamber was prepared, allowing for the determination of sulphur oxide emissions characteristics based on boiler load. The developed numerical model was validated against measurement data from the actual OP-430 boiler. In the analysed system, your work in connecting four power units to the flue gas desulphurisation installation is crucial. For the WFGD system to function properly, the flue gas temperature must be maintained at 110 degrees C, and the sulphur oxide content must remain within the range of 1100-3200 mg/Nm3. The concentration of SO2 at the outlet of the installation must not exceed 200 mg/Nm3.