Green Deal Validation study: technical addendum Maritime CEMS - analysis of test bed data
report
This report is a supplementary to a study [1] that investigates the practical feasibility and usability of Continuous Emission Measurement Systems (CEMS) for monitoring NOx-emissions on sea-going vessels within the context of the Dutch Green Deal. The document at hand provides additional technical information on the performance of a CEMS of one supplier. To that end, engine testbed data using both laboratory equipment and CEMS sensors is analyzed. Key findings indicate that while CEMS sensors show good agreement with laboratory measurements for NOx-concentrations, their accuracy is lower than required for regulatory compliance but sufficient for robust, low-maintenance monitoring. The main sources of uncertainty are related to exhaust mass flow calculations and sensor sensitivity to gas composition. Recommendations include the use of dedicated sensors and improved power measurement methods. The report highlights the need for further research on long-term sensor performance in marine environments.
TNO Identifier
1023633
Publisher
TNO
Collation
31 p.
Place of publication
Den Haag