MES 1001 Applications

The MES 1001 is ideal for a number of applications which include:

  • Continuous Emission Monitoring (CEMS)
  • Engine Control
  • Fuel Switching Monitoring
  • SCR Control including ammonia Monitoring
  • Big Data


Example of CEMS, Engine Control or Fuel Switching applications

Continuous Emission Monitoring (CEMS)

The sensor is particularly suitable for CEMS as it delivers accurate realtime measurements of NOx and SOx. This will enable the ship to prove compliance in case the port state control requests this information. The data is stored in the sensor for future reference and in cases where the ship GPS is connected to the sensor, all measurement data is tagged with information about the position.

Engine Control

In applications with an advanced engine control, the sensor can with great advantage be used to feed back the NOx information to the engine control computer. This way the NOx signal can be combined with additional sensor information and thereby used to optimize engine parameters in a way that optimizes fuel consumption and emissions at the same time.

Fuel Switching

Sailing on routes where you go in and out of low sulfur emission zones requires that you are in complete control of your fuel switching process. The MES 1001 is capable of documenting the process so that questions raised on compliance can be fully addressed by means of accurate measurements and GPS positions.


Example of SCR Application


More and more engine manufacturers and ship owners are looking towards the SCR as a mean to reduce the NOx emissions. The traditional approach to controlling the SCR is by means of the engine load signal, where the amount of urea injected into the SCR is controlled as a function of the load. A novel approach is to install the MES 1001 after the SCR and feed back the NOx signal to the urea dosing controller. This way you can control the dosing of urea more accurately and obtain a better transient performance as the regulation is based on the exhaust out of the SCR. In addition, the sensor can measure an ammonia slip and thereby issue a warning, which will prevent damage to equipment further down the stack.

Big Data

In case the ship holds a ship performance data system, it is particularly beneficial to connect the sensor’s emission data to this system. This way the NOx measurement can be processed together with other valuable sensor information thus giving a more complete picture of the ship’s performance, including an online presentation of how the engine is performing compared with the ideal Tier II or Tier III curves. Since data is stored by the ship performance system, it is possible to retrieve emission information from certain positions if port state control asks for proof of compliance. Over the past years, we have seen examples of significant fines and /or detainment of the ship in cases of non-compliance. Such incidents are extremely costly and create bad publicity.