nox and sox emissions

DNV GL © 2017 1 March 2018 SAFER, SMARTER, GREENERDNV GL © 2017

1 March 2018

Mirko Schlegelmilch

MARITIME

NOx and SOx Emissions

Statutory Regulations and DNV GL’s Role

1

DNV GL © 2017 1 March 20182

Approval Centre Hamburg

DNV GL

DNV GL © 2017 1 March 2018

Emission to Air

3

Regulations

DNV GL © 2017 1 March 2018

Emission to Air

4

NOx

2020

IMO0.5%S

2020

EU0.5%S

2015

SECA0.1%S

IMO 0.5%S

EU Sulphur directiveEU Sulphur directive

IMO 0,5%S

Illustrative purpose only

2016

NECATier III

Applicable world wide for all ships

(irrespectively of keel laying date)

SOxNOx1st of January 2020 IMO enforces a

global sulphur cap of 0.5%

2021

NECATier III

Regulations

DNV GL © 2017 1 March 2018

x5

DNV GL © 2017 1 March 2018

Regulation 14requires the use of fuel oil with

limited sulphur content

Regulation 4opens up for the use of Equivalent methods, at least as effective in terms of emissions reductions as

required by Regulation 14.

SOx Exhaust Gas Cleaning systems (Scrubbers) are an

option

6

Statutory Regulations & Directives

SOx

DNV GL © 2017 1 March 2018

EGC system approval, survey and

certification using

continuous monitoring of SOx emissions

and parameter checks

7

EGC system approval, survey and

certification using

continuous parameter monitoring

and emission checks

Certification according to MEPC.259(68) Guideline

SOx

DNV GL © 2017 1 March 2018

Monitoring and compliance

8

Emission to AirSO2(ppm) and CO2(% v/v) are monitored since compliance of the scrubber systems is required to be demonstrated on basis of the ratio SO2/CO2 in the exhaust stream.

Emission to Sea

For the washwater pH, PAH, turbidity and

temperature are to be continuously measured

at the washwater overboard discharge.

In addition, washwater is to be analysed for

nitrates at commissioning and at each renewal

survey.

Emission values to be continuously monitored and recorded:

Treatment residuesResidues generated by the EGC unit should be delivered ashore to adequate reception facilities. Such residues should not be discharged to the sea or incinerated on board.

SOx

DNV GL © 2017 1 March 2018

x

9

DNV GL © 2017 1 March 2018

Regulation 13Sets limits to the emissions of NOx

from marine diesel engines

NOx Technical Code 2008 (MEPC.177(58))

10

Statutory Regulations & Directives

The NTC2008 specifies the requirements for the

following mandatory procedures to ensure

compliance with the NOX emission limits:

• Testing

• Survey

• Certification

NOx

DNV GL © 2017 1 March 2018

IMO (EIAPP certificate): ONE Applicant for the whole system

11

Engine Manufacturer

NOx Abatement

System

+

� One Technical File for complete system

� One EIAPP Certificate

� One responsibility for corrective action

� One owner of the engine group

NOx

DNV GL © 2017 1 March 2018

DNV GL Class

12

DNV GL

Class Rules

DNV GL

Class Rules

DNV GL © 2017 1 March 2018

Part 4 Chapter 6 Section 8

DNV GL Class Rules

DNV GL © 2017 1 March 2018

Limited additional requirements

for Product Certification for

Scrubber components:

DNV GL Class Rules

Class Part - Product Certification Requirements

Electron Accelerator? / Electrostatic Precipitator?

DNV GL © 2017 1 March 2018

DNV GL Support

15

DNV GL © 2017 1 March 201816

Certificates

How can DNV GL assist?

DNV GL © 2017 1 March 2018

Services - Hardware-In-Loop Testing

21

How to reduce risks related to commissioning and automation?


pH =

6.5

Start

stop

Scrubsystem

Control system

Real ship and system Hardware-In-LoopOR

Pre-installation

Detect:• Hidden software

errors• Errors in

configuration parameters

• Design flaws in the software

� When performing HIL test, the control system is isolated from the real system and instead put into a laboratory.

� The response of the control system to malfunctions or extreme process conditions is evaluated using a software simulating the real scrubber system’s actuators, dynamics and sensors.

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Supporting Documents


• DNV GL Class Guideline for

Exhaust Gas Cleaning Systems

(SOx, Statutory)

• DNV GL Class Guideline for pH

Discharge Critera for Exhaust Gas

Cleaning Systems according to

MEPC.259(68)

• Etc…

DNV GL © 2017 1 March 2018

SAFER, SMARTER, GREENER

www.dnvgl.com

Thank You!

24

Dr. Mirko Schlegelmilch

[email protected]

+49 40 361493611

Senior Approval Engineer Environmental Certification