GREENCRANES FINAL INFO DAY - Fundación Valenciaport · GREENCRANES FINAL INFO DAY Pilots and Demonstrations Retrofitted RTG Vicent Lladó KONECRANES Port Service Mediterranean Consortium:

Green Technologies and Eco-efficient Alternatives for Cranes and Operations at Port Container Terminals

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GREENCRANES FINAL INFO DAY

Pilots and Demonstrations

Retrofitted RTG

Vicent Lladó KONECRANES

Port Service Mediterranean

Consortium:

Brussels, May 15th, 2014


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SUMMARY

1. Introduction to RTG

2. Environmental issues

3. Eco-efficient alternatives

4. Pilot: case NOATUM

5. Conclusion


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1. Introduction to RTG 2. Environmental issues 3. Eco-efficient alternatives 4. Pilot: case NOATUM 5. Conclusion

RTG Rubber-Tyred Gantry RTG is the most popular container crane for medium-large harbours and intermodal terminals. RTGs have a very versatile operation to handle yard containers in multiple stacks. Its diesel-powered engine makes the RTG completely autonomus and free to move along the yard.


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1. Introduction to RTG

2. Environmental issues 3. Eco-efficient alternatives 4. Pilot: case NOATUM 5. Conclusion

Diesel engine • High displacement • High fuel consumption • High operational cost • High CO2 emmissions


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1. Introduction to RTG 2. Environmental issues

3. Eco-efficient alternatives 4. Pilot: case NOATUM 5. Conclusion

3.1. Hybrid Engine It can turn a diesel RTG into a diesel-electric hybrid RTG. Whenever possible, the crane is operated with electrical power drawn from the energy store. Like a hybrid car, it takes the energy generated during braking and converts it into electricity to recharge the energy store. Fuel consumption can be reduced dramatically (-60%).

3.2. Fuel Saving System It provides power-on-demand, matching the RPMs to the work the machine is doing. It ensures that the diesel engine is running at optimal efficiency at all operating points, without high-speed idling. It cuts fuel consumption (-30%), without compromising crane performance. Not valid for all makes.


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3. 6 eco-efficient alternatives 4. Pilot: case NOATUM 5. Conclusion

1.3. Cable reel electrification It equips the RTG with a cable reel, a feeding cable and a transformer, feeding electricity from the grid to the crane. A fixed or portable auxiliary diesel generator is used to move the RTG between stacks.

1.4. Bus bar electrification It converts the RTG to fully electric operation. The power is supplied by a low electrified fence that provides the physical contact. RTG operation is quiet and there are no diesel emissions.


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3. 6 eco-efficient alternatives 4. Pilot: case NOATUM 5. Conclusion

1.5. Alternative fuel (LNG) Liquefied Natural Gas is used as a new energy source by means of an adapted engine and special storage tanks.

1.6. Engine replacement / retrofit RTG diesel engine is replaced by a more efficient one, or it is modified to reduce fuel consumption in exchange for performance index.


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1. Introduction to RTG 2. Environmental issues 3. 6 eco-efficient alternatives

4. Pilot: case NOATUM 5. Conclusion

Assessment All options considered.

Alternative δ Invest.

M€ IRR %

NPV M€

Payback y

Remarks Result

Hybrid engine n/c - - - Batteries last same as IR

Fuel saving system n/c - - - Not efficient enough

Full electric Bus Bar 8,4 19,9 1,4 5 High investment

Full electric Cable Reel 7,0 14,2 1,0 7 High investment

LNG GenSet 6,1 19,3 2,4 5 Safety issues. Tech issues. High investment.

GenSet Resize 1,2 58,6 2,9 3 Interesting and affordable


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RTG Fantuzzi-Reggiane (dated Sep 2003) • Ramp parameters are changed (hoist inverter) to reduce power demand from existing diesel engine, so hoist machinery consumption, and related emissions, can be optimized. • Power reduction resulted in different acceleration times. Power optimum was found in 60%, based upon current consumption and hoisting time.


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GENSET MODEL Current

28l VTA 28G5

PILOT I 15l

QSX15G8

PILOT II 13l

TAD1355GE

Power (kW) 650 500 400

Stand-by consumption (l/h) 1800 rpm w/o ECO Mode

26 18 13

Average consumption (l/h) 12 mov/h w ECO Mode

28,4 22,4 15,6

• At 60% power, no speed is sensitively decreased. • 2 different engines are tested and results measured.


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0

5

10

15

20

25

30

Current Situation Pilot I Pilot II

Old Generation RTG Consumption (l/h)

- 45%




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€-

€5,00

€10,00

€15,00

€20,00

€25,00

€30,00

50 150 250 350 450 550 650

Co

st €

/h R

TG

GenSet Power (kW)

Energy Cost €/h Operational Overcost €/h Total Cost €/h



Current Situation

Pilot I

Pilot II

Optimum Point

GREENCRANES II


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1. Introduction to RTG 2. Environmental issues 3. 6 eco-efficient alternatives 4. Pilot: case NOATUM

5. Conclusion

Reaching the optimum point requires monitoring and modeling the whole terminal in order to get real and complete data. Benefits of integral terminal monitoring include: • Optimum point can be determined • Possible to operate at minimum Operation + Energy cost • Possible to operate yard lighting in real time • Integral approach: Operations + Energy + Maintenance + Safety


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GREENCRANES FINAL INFO DAY - Fundación Valenciaport · GREENCRANES FINAL INFO DAY Pilots and Demonstrations Retrofitted RTG Vicent Lladó KONECRANES Port Service Mediterranean Consortium: