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EGR, SCR and combined EGR and EGC scrubber - · PDF fileEGR engine with cut-out turbocharger: ... January 2014 Combined EGR and EGC scrubber Feasibility study funded by the Danish

Jul 12, 2018

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  • 1 < > MAN Diesel & Turbo CIMAC seminar, Norway, 22. January 2014

    CIMAC NMA Norge

    Norwegian Shipowners' Association, 22nd January 2014,

    Low speed Tier III technologies

    EGR, SCR and combined

    EGR and EGC scrubber

    Kjeld Aabo Director

    Customer support

    Marine Low Speed Disclaimer All data provided on the following slides is for information purposes only,

    explicitly non-binding and subject to changes without further notice.

  • 2 < > MAN Diesel & Turbo CIMAC seminar, Norway, 22. January 2014

    Two-stroke Low Speed Engines Marine Engines

  • 3 < > MAN Diesel & Turbo CIMAC seminar, Norway, 22. January 2014

    1 EGR Exhaust Gas Recirculation

    2 SCR Selective Catalytic Reduction

    3 Combined EGR and EGC (Exhaust Gas Cleaning) scrubber

    Low speed Tier III technologies

  • 4 < > MAN Diesel & Turbo CIMAC seminar, Norway, 22. January 2014 3336719.2010.04.27 (NK/LDF)

    EGR

    (Exhaust

    Gas Recirculation)

    SCR

    (Selective

    Catalytic Reduction)

    Low speed Tier III technologies

  • 5 < > MAN Diesel & Turbo CIMAC seminar, Norway, 22. January 2014 3336719.2010.04.27 (NK/LDF)

    EGR

    (Exhaust

    Gas Recirculation)

    EGR combined with EGC scrubber

    EGC scrubber

    (Exhaust

    Gas Cleaning scrubber)

    Combined

    SOx reduktion NOx reduktion

  • 6 < > MAN Diesel & Turbo CIMAC seminar, Norway, 22. January 2014

    1 EGR Exhaust Gas Recirculation

    2 SCR Selective Catalytic Reduction

    3 Combined EGR and EGC (Exhaust Gas Cleaning) scrubber

    Low speed Tier III technologies

  • 7 < > MAN Diesel & Turbo CIMAC seminar, Norway, 22. January 2014

    EGR

    System layout med T/C cut-out matching

  • 8 < > MAN Diesel & Turbo CIMAC seminar, Norway, 22. January 2014

    EGR System Layout with cylinder bypass

    matching

  • 9 < > MAN Diesel & Turbo CIMAC seminar, Norway, 22. January 2014

    Auxiliary system for EGR

  • 10 < > MAN Diesel & Turbo CIMAC seminar, Norway, 22. January 2014

    EGR integrated engine design:

    6S80ME-C9.2

    EGR inlet pipe &

    pre-scrubber

    Dual cooler

    EGR scrubber

    EGR blower

    Distribution chamber

    Mixing chamber

    EGR outlet pipe

  • 11 < > MAN Diesel & Turbo CIMAC seminar, Norway, 22. January 2014

    EGR Unit Integrated on Engine

    EGR inlet pipe &

    pre-scrubber (not seen)

    EGR cooler

    EGR scrubber

    EGR blower

    Distribution chamber

    Water Mist Catcher

    EGR mixing

  • 12 < > MAN Diesel & Turbo CIMAC seminar, Norway, 22. January 2014

    New EGR Unit Design

    Compact EGR unit designed

    for engine-mounting

    Combined scrubber/cooler to

    optimise scrubbing and

    lowering the scrubber water

    temperature

    Water mist catching after

    scrubber by reversing

    chamber and high efficiency

    WMC

    Coolers

    Scrubbers

    WMC

    Outlet

    Inlet Pre-conditioned

    EGR gas

    Reversing

    chamber

  • 13 < > MAN Diesel & Turbo CIMAC seminar, Norway, 22. January 2014

    EGR key components

    EGR cooler EGR blower

    Valves EGR sensor

    EGR unit

    On engine Off engine

    Water Treatment System

    Scrubber Control system

    Tanks

    Drain

  • 14 < > MAN Diesel & Turbo CIMAC seminar, Norway, 22. January 2014

    EGR control system - HMI

  • 15 < > MAN Diesel & Turbo CIMAC seminar, Norway, 22. January 2014

    NOx certification of EGR engine modes

    for TC Cut-out engine

    IMO NOx certifi-

    cation (Test cycle E2 or E3)

    Tier II

    (Cycle value calculated from highest NOx value from each load point)

    Tier III

    Engine mode Economy No EGR Low EGR* High EGR

    Engine mode no. 1 2 3 4

    Turbochargers in

    operation

    Basis+ Cut-

    out TC Basis TC Basis TC Basis TC

    Load range 0 - 110% 0 50% 0 - 75% 0 - 100%

    * Optional if test bed results are positive

  • 16 < > MAN Diesel & Turbo CIMAC seminar, Norway, 22. January 2014

    Shop test of 6S80ME-C9.2 at HHI-EMD,

    September 2012

    Tier III NOx levels: cycle value & mode caps

    Fuel optimised Tier II EGR mode concept

    EGR engine Control & Safety system

    High efficient EGR scrubber

    EGR blowers

    EGR oxygene sensor setup

    EGR coolers

    EGR Water Treatment System

  • 17 < > MAN Diesel & Turbo CIMAC seminar, Norway, 22. January 2014

    Expected change in fuel oil consumption

    ECA-EGR

    Tier III

    Low EGR

    Tier II

    Economy

    Tier II

    100% +4 +4 0

    75% +3 +0 0

    50% +2 -5 0

    25% +0 -5 0

    ECA-EGR

    Tier III

    Low EGR

    Tier II

    Economy

    Tier II

    100% +5 +3 +2

    75% +4 -1 0

    50% +3 -5 -5

    25% +0 -5 -5

    EGR engine with cut-out turbocharger:

    EGR engine with cylinder by-pass:

    *For some engines it is nessecary to remove shims in order to

    avoid smoke in ECA-EGR mode which can result in a higher SFOC in

    Low EGR mode.

  • 18 < > MAN Diesel & Turbo CIMAC seminar, Norway, 22. January 2014

    NOX and PM in exhaust test results

    : Economy mode

    : Low EGR mode

    : ECA-EGR mode

  • 19 < > MAN Diesel & Turbo CIMAC seminar, Norway, 22. January 2014

    EGR engine parameters

    : Economy mode

    : Low EGR mode

    : ECA-EGR mode

  • 20 < > MAN Diesel & Turbo CIMAC seminar, Norway, 22. January 2014

    6S80ME-C9-EGR on-board Maersk Cardiff

  • 21 < > MAN Diesel & Turbo CIMAC seminar, Norway, 22. January 2014

    EGR Service test status

    Alexander Maersk EGR launched March 2010

    >2400 running hours on HFO with 3% sulfur

    Engine components is not affected by EGR

    Crew operates the system

    Maersk Cardiff EGR launced February 2013

    >1000 running hours on HFO with 3% sulfur

    Engine components is not affected by EGR

    EGR system components works well

    Crew operates the system

  • 22 < > MAN Diesel & Turbo CIMAC seminar, Norway, 22. January 2014

    EGR references (service tests)

    13.09.2013 RASA/ Dept LSP

    In service

    Launched in march

    2010

    In service

    Launched in march

    2013

    Ordered

    Delivery in June and

    Sept. 2013

    Ordered

    Delivery in

    Dec. 2014

  • 23 < > MAN Diesel & Turbo CIMAC seminar, Norway, 22. January 2014

    Installation aspects

  • 24 < > MAN Diesel & Turbo CIMAC seminar, Norway, 22. January 2014

    Conclusions on EGR development

    Compact EGR engine design for 6S80ME

    and 6G70ME engine is completed.

    Tier III test results with satisfying SFOC and

    other emissions are confirmed.

    Service test of EGR is progressing as

    planned.

    EGR concepts for entire engine program is

    identified and validated.

    Commercial orders is signed with Chevron

    and NYK.

  • 25 < > MAN Diesel & Turbo CIMAC seminar, Norway, 22. January 2014

    1 EGR Exhaust Gas Recirculation

    2 SCR Selective Catalytic Reduction

    3 Combined EGR and EGC (Exhaust Gas Cleaning) scrubber

    Low speed Tier III technologies

  • 26 < > MAN Diesel & Turbo CIMAC seminar, Norway, 22. January 2014

    SCR

    System layout p motor

    V2

    V1

    V3

    V4

  • 27 < > MAN Diesel & Turbo CIMAC seminar, Norway, 22. January 2014

    System layout Demonstration of solutions

    Increase of exhaust gas temperature

    SCR system placed on the high pressure side of the turbine

  • 28 < > MAN Diesel & Turbo CIMAC seminar, Norway, 22. January 2014

    System layout Demonstration of solutions

    Increase exhaust gas temperatures further at low load

    Cylinder & SCR bypass provide correct temperature

    Example: Temperature must be increased 70C from 260C to 330C at 25%

  • 29 < > MAN Diesel & Turbo CIMAC seminar, Norway, 22. January 2014

    System layout Demonstration of solutions

    Integrate the temperature control in the Engine Control System

    Departure from harbor

    Maneuvering, accelerations and deceleration

    Low speed

  • 30 < > MAN Diesel & Turbo CIMAC seminar, Norway, 22. January 2014

    Tier III SCR System

  • 31 < > MAN Diesel & Turbo CIMAC seminar, Norway, 22. January 2014

    Tier II operation

    The exhaust gas goes

    directly to the turbine

    Tier III SCR System

  • 32 < > MAN Diesel & Turbo CIMAC seminar, Norway, 22. January 2014

    Tier III SCR System Pre-turbine SCR

    Tier III operation

    The exhaust gas is

    directed to the SCR

    reactor

  • 33 < > MAN Diesel & Turbo CIMAC seminar, Norway, 22. January 2014

    Auxiliary system for SCR

    3338581.2013.01.25

  • 34 < > MAN Diesel & Turbo CIMAC seminar, Norway, 22. January 2014

    System layout Demonstration of solutions

    Integrate the tem

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