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MTZ industrial

, Volume 4, Issue 1, pp 46–51 | Cite as

Testing an Integrated EGR System on a Marine Two-Stroke Diesel Engine

  • Toshinori Shirai
  • Peter Skjoldager
  • Sumito Yokobe
  • Shoichi Ibaragi
Development Emissions
  • 52 Downloads

Exhaust gas recirculation is a well established method of NOx reduction on high speed diesel engines in all fields of application. Based on a fully engine-integrated EGR system, low speed marine engine builder Mitsui and MAN have tested and confirmed EGR’s viability as a route for compliance with the stringent limitations on NOx imposed by IMO Tier III for ships in Emission Control Areas.

Verifying the EGR route

The IMO Tier III regulation requires an 80% reduction in emissions of oxides of nitrogen (NOx) compared to IMO Tier I. Selective Catalytic Reduction (SCR) and Exhaust Gas Recirculation (EGR) are expected to be the most feasible NOx reduction technologies.

Having already verified SCR technology as a solution for IMO Tier III NOxcompliance on its engines, Mitsui Engineering and Shipbuilding Co., Ltd. (MES) has conducted verification tests on an EGR system with a view to offering Tier III compliance with a reduction system integrated onto the engine. In this way the installation...

Keywords

Selective Catalytic Reduction High Speed Diesel Emission Control Area Peak Combustion Temperature 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Nomenclature

ECA

Emission Control Area

EGR

Exhaust Gas Recirculation

WMC

Water Mist Catcher

WTS

Water Treatment System

DBT

Dirty Buffer Tank

CBT

Clean Buffer Tank

Pmax

Maximum firing pressure

Pc

Cylinder compression pressure

Ps

Scavenge air pressure

CB

Cylinder By-pass valve

EGB

Exhaust Gas By-pass

C/O

Change-over valve

S/D

Shut-down valve

T/C

Turbocharger

CO

Carbon monoxide

NOx

Oxides of Nitrogen

NaOH

Aqueous Sodium Hydroxide

ME-ECS

Main Engine — Engine Control System

Notes

Thanks

The development of EGR technology has been selected as a subsidised project by the Ministry of Land, Infrastructure, Transport and Tourism of Japan under the “Support for Technology Development for Curtailing CO2 from Marine Vessels” programme.

Copyright information

© Springer Fachmedien Wiesbaden 2014

Authors and Affiliations

  • Toshinori Shirai
    • 1
  • Peter Skjoldager
    • 2
  • Sumito Yokobe
    • 1
  • Shoichi Ibaragi
    • 1
  1. 1.Mitsui Engineering and Shipbuilding Co., Ltd.TokyoJapan
  2. 2.MAN Diesel & Turbo SECopenhagenDenmark

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