www.GREEN4SEA.com : Fostering Environmental Excellence & Sustainable Shipping Athens 22 APR 2015

GREEN4SEA

An SQE4SEA Project 2015 GREEN4SEA Forum

1

Fostering Environmental Excellence & Sustainable Shipping

Session 1 : Sustainable Shipping

Session 2 : Energy Efficiency

Session 3 : Fuel Options

Session 4 : Ballast Water Management

www.GREEN4SEA.com : Fostering Environmental Excellence & Sustainable Shipping Athens 22 APR 2015

GREEN4SEA

An SQE4SEA Project 2015 GREEN4SEA Forum

Session 2 : Energy Efficiency [ 11:15 – 13:00 ]

1. Jarle Coll Blomhoff, Business Development Leader, Maritime Advisory

Germany & East Med, DNV GL Maritime – Tanker Energy Efficiency through operational fuel saving initiatives

2. Konstantinos Kanellakis, Marine Business Development, Group Product Manager Motion & Drives, Schneider Electric - Energy efficiency with variable frequency drives

3. Albert Leyson, Marketing Manager, Drew Marine - Next Generation Fuel Management Solutions

4. Gerald Rolfe, Service Business Development Manager, SKF Marine - Condition Based Maintenance (CBM) optimizing Asset efficiency

5. Edwin Schuirink, Technical Product Manager, VAF instruments – Hull and Propeller Efficiency Monitoring

6. Yoshihisa Okada, Deputy General Manager - Propeller Design Dept, Nakashima Propeller Co Ltd – Propeller and New Energy Saving Devices for EEDI

30 min Panel Discussion & Questions open to the floor

2

Hull & propeller efficiency monitoring Theory and real-life practice

Edwin Schuirink

Why the hull our fuel bill is so

high??!

Source: Hergé Internet

Products

Viscosity / density Flow Oil blending

Oil in water Torque & thrust Alarm units

1. Introduction

2. Torque meter

> Optical sensor, can be installed by shipyard / owner

> No frequent recalibration needed

> More than 600 systems sold

> About 60% together with VAF PT2 flow meters

LED

detector cel A

C B

D

T-Sense®

No strain gauges

Rotor

Stator

Control box

Power, Torque, Rpm

via MODbus RS485

3. Monitoring

PEM2 – Touch screen

PEM4 – Efficiency Monitoring system

Rotor

Stator

Control box

Power, Torque, Rpm

via MODbus RS485

Flow meters

Speed log and/or GPS

STW and/or SOG

SPU3

Shaft generator

power level (4-20mA)

Up to 12, type PT2

3. Monitoring

+ additional PEM4 screens

Modbus output to

AMS

Next step in product range to enable monitoring of entire

propulsion system

Measures Torque of engine and Thrust of propeller

4. Thrust & Torque meter

TT-Sense®

Thrust = c2 * Δx → TT-Sense®

Required accuracy for thrust measurement

is 25 nanometers, which is equal to

5 seconds of beard growth

M

Δy

Δx

Torque = c1 * Δy → T-Sense®

T

4. Thrust & Torque meter

Principle torque & thrust measurement

Principle TT-Sense®

4. Thrust & Torque meter

TT-Sense measures torque and propeller thrust

Resistance = T(1-t), t=thrust deduction factor

Resistance [kN] Thrust [kN]

4. Thrust & Torque meter

• Hull roughness, marine growth, slime, seaweed etc.

• Trim of the vessel (optimization)

• Propeller performance

• Quality of low friction paint, anti-fouling paint

4. Thrust & Torque meter

Thrust output value is directly related to:

Source: Wartsila, Intersleek , Internet

5. Real life examples

5% decrease in 1 year

≈ 200.000 $ extra fuel costs

14% increase within 1 year

≈ 550.000 $ extra fuel costs

Hull condition Propeller efficiency

Creating awareness on shore

According experts the world fleet is sailing with approx.

30% added resistance due to fouling and consequently

significantly higher levels of fuel consumption

Hopper Dredger. Reinforcing coastline

Source : Marine traffic

Monitoring fuel consumption of the main engines,

gensets, dredge pump, boilers, incl. TT-Sense:

> Optimize vessel speed (by fuel monitoring)

> Avoid structural damages and energy waste

(by thrust monitoring)

Creating awareness on board

5. Real life examples

Thrust direction changes in 10 sec

Thrust <0 for 1.5 minutes

Thank you for your attention!

Source : Juliusbeckmann.de