Dual Urea Dosing System with Novel Control Strategy for Enhanced NOx Emission Reduction for High-Power Diesel Generators Application

In the power industry, high-power Diesel Generator (DG) sets often utilize V-engine cylinder configurations to enhance power output within a compact design, ensuring smoother operation and reduced vibration. This "V" arrangement requires a dual exhaust manifold system to efficiently extract exhaust gases, leading to the requirement for dual Exhaust After Treatment Systems (EATS) to effectively manage NOx emissions. High-power gensets typically emit NOx levels around 9 g/kWh, presenting significant challenges for developers in adhering to stringent emission standards. To address these challenges and meet CPCB IV+ emission norms, we propose a dual urea dosing system integrated with a novel control strategy aimed at optimizing the treatment of exhaust gases. This paper introduces a dual exhaust system equipped with dual urea dosing units. By employing two controller units, we ensure compliance with On-Board Diagnostics (OBD) requirements while effectively implementing advanced software concepts. Our approach not only enhances the efficiency of NOx reduction but also provides a robust solution for high-power diesel generators, paving the way for more sustainable operations in the power sector. This study discusses the design, implementation, and performance evaluation of the proposed system, highlighting its potential to significantly lower NOx emissions while maintaining operational efficiency in high-power diesel generator applications.