ShipCEMS – Exhaust Gas Emission Monitoring Systemt

Inspired by environmental concerns, ShipCEMS is designed to monitor and report traces of SO2, CO2 and other gas substances that are contributing to local and global emission challenges. Our ShipCEMS is the right choice for ship owners to help them ensure that the forthcoming IMO regulations for emission control areas can be met.

The ShipCEMS design is based on a careful selection of maritime standard components. Our solution uses a heated sample treatment throughout to assure measuring the true composition of the exhaust flue. A typical installation comprises flange mounted sample probes and stainless steel cabinets for the sample conditioning and analyser systems.

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Exhaust gas emissions from the maritime industry being subject to international and national law and regulations, it is fundamental for ship owners to establish compliance with new environmental standards. Being the de facto convention, IMO Marpol Annex VI sets limits for airborne pollution for gas substances contributing to local and global environmental problems.

Our ShipCEMS is designed to monitor your marine exhaust flue, ensuring that compliance with MARPOL Annex VI can be confirmed in ports, in international waters and emission control areas (ECA/SECA). Inspired by environmental concerns, ShipCEMS is designed to measure, analyse and report traces of SO2 and CO2 in wet marine exhaust flue. Monitoring of NOX, O2 or other gases are available as options.

As the flue gases are dirty, with a high content of soot, trace components can easily be lost before arriving at the analyser instrument. Our design solution is based on a heated sample treatment throughout, without needing to introduce chemicals. This assures that the true composition of the exhaust flue is measured

ShipCEMS is designed for unmonitored, continuous operation. The user interface is simple and intuitive, with a limited number of operations necessary to use the system. The analysing technology is based on the use of non-dispersive infrared detectors (NDIR). This is a simple and robust measuring technology, being the industry standard when used in demanding applications.

ShipCEMS can monitor up to four processes simultaneously. One sample probe and one sample conditioning cabinet must be installed for each exhaust stack or combustion process to be monitored. Only one analyser cabinet is required, taking care of the necessary sample stream switching.


Technical specifications

Measuring range SO2: Default 0-50 ppm Max 0-1000* ppm CO2: Default 0-10% Max 0-15%* NOx: on request O2: on request CO: on request

Other gases on request

Measuring principles Industry standard NDIR measuring technology

Calibration gas (span) requirements 40 ppm SO2 8 mol% CO2 Rest N2 Consumption: 5 l/calibration

Air requirements Lower than +3°C dew point @ 8 barg minimum outlet pressure (lower than -17°C dew point @ atmospheric pressure) Oil-free (no oils present in outlet compressed air) Consumption: 15 l/min/funnel

Analyser System cabinet Dimension: 800 x 400 x 1000 mm Weight: 143 kg

Sample Conditioning System cabinet Dimension: 400 x 300 x 700 mm Weight: 52 kg

Heated sample probe Length: 254 mm Flange diameter: DN-65 / PN6* Weight: 10 kg

Materials Cabinets: SS316L Tubing: PFA/PTFE Fittings: SS316L Sample probe counter flange: SS316L (or customer specific)

Ingress protection IP44 (for indoor installations) IP55 (for outdoor installations)

Power requirements 230 / 110 VAC

Power consumption Analyser Cabinet: 590 W Sample Conditioning System: 490 W Heated sample probe: 350 W Heated sample line: 67 W/m

Communication 4-20 mA analogue outputs Digital alarm outputs Modbus – Option* Profibus – Option*

Environmental requirements IACS E10 IEC 60945 IEC 60529


ShipCEMS – Productsheet
ShipCEMS Utility Specification
Performance curves for ShipCEMS – Comparing Measuring Technology for ppm SO2
Performance curves for ShipCEMS – Measurement Variance vs. Moisture Content in Scrubber Flue Gas