NOx EGR Water Discharge
Exhaust Gas Recirculation (EGR) systems are vital for managing nitrogen oxide (NOx) emissions from marine diesel engines, reducing environmental impact and meeting international regulations.
- Understanding NOx Emissions: NOx refers to a group of nitrogen and oxygen compounds produced during combustion processes. High NOx levels contribute to environmental issues such as acid rain and smog. NOx analysers play a crucial role in monitoring these emissions, ensuring that engines do not exceed legal limits.
- The Function of NOx EGR Systems: NOx EGR systems work by rerouting a portion of exhaust gases back into the engine’s air intake. This process reduces NOx formation by lowering combustion temperatures and oxygen content, striving to achieve compliance with stringent emissions standards.
- Water Discharge Integration: Exhaust gases, once treated, mix with water to create a bleed-off that is discharged either to the sea or ashore. It is crucial to manage this water effectively to ensure compliance with discharging regulations. The bleed-off must adhere to specific handling guidelines depending on fuel oil sulphur content, emphasising the role of precise monitoring.
- The Role of Oil Content Analysers: To discharge water bleed-off safely, maintaining oil content within regulated limits is essential. Instruments like Rivertrace SMART PFM 107 and SMART Bilge 15ppm oil content monitors ensure that discharged water complies with MEPC.107(49) regulations, protecting marine environments and reinforcing sustainable practices.
Using EGR systems in conjunction with NOx analysers and oil content monitors supports sustainable marine operations and adherence to global emissions guidelines.
More information on MEPC 107(49) here
