Next Generation Emissions Monitoring
MariNOx Evolution is the latest version of the MariNOx diesel engine emissions monitoring system from Martek Marine. Based largely on the existing tried-and-tested MariNOx technology, successfully installed on over 100 vessels worldwide, it includes a number of new features designed to enhance efficiency. The first order for MariNOx Evolution has recently been completed. Other contracts have been confirmed.
The new generation system is now Martek Marine’s standard emissions monitoring offer. The system is designed to help shipowners comply as easily as possible with Marpol Annex IV rules, as well as the NOx Technical Code and MEPC 103 (409). The system provides continuous monitoring of exhaust gases and engine/ambient parameters to calculate NOx emissions and enables continuous monitoring of engine performance to deliver fuel savings of up to 4%.
New Generation Features
The installation and running of the new system has been substantially refined by the incorporation of a single, daisy-chain sample line design, replacing the previous arrangement which required several separate sample lines. Reducing the number of sample lines, and cutting the amount of cabling onboard, will take a significant amount of time and money out of the onboard installation process. Furthermore the amount of power needed to heat the sample lines has also been drastically reduced by having the single sample line configuration.
Accurate Performance Measurement
According to Steve Coulson, Martek Marine’s marketing director, “In avoiding the need for multiple, separate sample lines, MariNOx Evolution represents a significant step forward. This is a much simpler arrangement that will benefit customers and shipyards alike, by virtue of its less complex installation.” MariNOx Evolution also comes with more advanced DataLINK software that gives the user greater control over the emissions monitoring process. This allows for more accurate performance management of the diesel engines, thereby helping users further reduce operational costs and harmful emissions. The latest software shipped with MariNOx Evolution makes use of the IMO’s new Energy Efficiency Design Index (EEDI) formula and this has further enhanced the accuracy of emissions level recording and trend analysis.
Opacity Sensor Input
As an optional extra, MariNOx Evolution can be configured to integrate opacity sensor input, measuring the density of engine smoke, directly into its control software. “This makes MariNOx Evolution unique in the market,” says Mr Coulson, “and we believe this new feature will greatly assist shipowners in monitoring the performance of marine diesel engines in order to reduce environmental impact.”