The document discusses ship performance monitoring and evaluating the business case. It notes that continuous data collection is key to meaningful monitoring. The first priority should be collecting accurate baseline data before trying to improve efficiency. The document then discusses upcoming EU regulations on monitoring and reporting carbon emissions from ships. It presents products for monitoring including torque meters and thrust and torque meters that can measure engine torque and propeller thrust. Real-life examples show how monitoring fuel consumption and thrust can optimize vessel speed, avoid waste, and yield fuel savings of over 10% for dredgers and 3 tons per day for cruise/ferry ships. Monitoring hull condition and propeller efficiency is important as fouling can increase resistance and fuel costs by 30%.

1. Ship Performance Monitoring
Evaluating the business case
Edwin Schuirink
Source: Hergé Internet
Why the hull our fuel bill is so
high??!

2. IMO regulations/SEEMP MEPC.1/Circ.683, Article 3.13:
“It should be noted that whatever measurement tools are used,
continuous and consistent data collection is the foundation of
monitoring. To allow for meaningful and consistent monitoring, the
monitoring system, including the procedures for collecting data and
the assignment of responsible personnel, should be developed.“
Setting a baseline:
The first priority should be to collect accurate and valid data before
you start trying to improve the ship’s energy efficiency.
1. Introduction
Ship Performance Monitoring
Lord Kelvin 1824-
1907
“If you cannot measure it, you cannot improve it”

3. 1. Introduction
Four steps: Continuous Improvement Process
Source: http://www.eagle.org ABS “Ship Energy Efficiency Measures”

4. On 29th April 2015, the EU adopted Regulation 2015/757 on the
monitoring, reporting and verification of carbon dioxide emissions from
maritime transport (the MRV Regulation), which creates an EU-wide
legal framework for collecting and later publishing verified annual data on
CO2 emissions from all ships over 5000 gross tons calling at EU ports
from 1st January 2018.
• CO2 emissions = Fuel consumption x emission factor (default value)
• Fuel consumption/CO2 emissions within port at berth are to be
calculated separately
1. Introduction
Upcoming European Regulations MRV

5. Products
Viscosity / density Flowmeters Oil blending
ODME / Oil in water Torque & thrust
1. Introduction
Monitoring

6. 2. Torque meter
> Optical sensor, can be installed by shipyard / owner
> No frequent recalibration needed
> More than 700 systems sold
> About 60% together with VAF PT2 flow meters
LED
detector cel
A
C
B
D
T-Sense®
No strain gauges

7. Rotor
Stator
Control box
Power, Torque, Rpm
via MODbus RS485
3. Monitoring
PEM2 – Touch screen
Modbus output to
AMS

8. 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

9. 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®

10. 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

11. Principle TT-Sense®
4. Thrust & Torque meter

12. TT-Sense measures torque and propeller thrust
Resistance = T(1-t), t=thrust deduction factor
Resistance [kN]Thrust [kN]
4. Thrust & Torque meter

13. • 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

14. 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 energy waste (by thrust monitoring)
> Fuel savings above 10%, same overall dredging performance
Creating awareness on board
5. Real life examples
Thrust direction changes in 10 sec
Thrust <0 for 1.5 minutes

15. 5. Real life examples
Creating awareness on board
Cruise/Ferry
Savings > 3 ton MGO/day
RORO Ferry
Savings 1-1,5 ton MGO/day

16. 5. Real life examples
5% decrease in 1 year
≈ 150.000 $ 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

17. Thank you for your attention!
I am going to check the fouling
of the hull right away!