Abstract
The main aim of this chapter is to develop a decision framework for ship owners to comply with emission regulations; various measures that are available to ship owners are analysed. A comparison between technical, operational, and other abatement measures for averting air emissions of carbon equivalent is made. A case study of Methanol as a marine fuel to comply with the air emission regulations is demonstrated. The environmental and economic benefits are evaluated to find the feasibility of alternative fuel technology. The externality will be assessed for the vessel before and after fuel switching. Ranking of different measures available to ship-owners is made by using a Multi Criteria Decision Making Technique. Gaps in the decision framework are analysed and evaluated. In conclusion, a holistic view of the decision framework for ship-owners is given with some recommendations. The case study will prove that, in the long term, by complying with abatement measures or alternative fuel technology, ship owners will avoid carbon tax and will have social and financial benefits. Methanol is a step towards zero emissions and complying with sustainability goals of the United Nations.
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Notes
- 1.
International Code of the Construction and Equipment of Ships Carrying Liquefied Gases in Bulk (IGC Code).
- 2.
The IBC Code provides an international standard for the safe carriage in bulk by sea of dangerous chemicals and noxious liquid substances.
- 3.
Discount rate is chosen as 10%.
- 4.
Tax rate is taken from tax yearbook of Sweden 2014 http://www.skatteverket.se/.
- 5.
Useful asset life is taken from STENA AB 2015 financial report.
- 6.
Exchange rate is taken from Sveriges Riksbank.
- 7.
The Riksbank’s target is to maintain inflation at a rate of 2% when measured by CPI.
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Acknowledgements
We would like to express our very sincere gratitude to Stena lines and Stena officials especially to Ms. Catherine Lee who is Business Development Director of Stena Lines Group and Mr. Per Stefenson who is Marine Standards Advisor for Stena Rederi AB Technical Division for their valuable input and providing the first author with data for successful completion of the paper. Every result described in this paper was accomplished with the help and support of fellow colleagues and collaborators. We would like to thank all the people who contributed in some way to the work described in this paper.
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Appendices
Appendix 1: Measures available for air emission reduction through TOPSIS
Measures | Si+ | Si− |
---|---|---|
Technical (Waste Heat Recovery) | 0.442 | 0.060 |
Operational (Scrubber) | 0.407 | 0.226 |
Alternative fuel (Methanol) | 0.224 | 0.407 |
Appendix 2: Machinery particulars and emissions for M.V. Stena Germanica
Machinery particulars | Emission in tonnes | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
MGO | 85% MeOH + 15% MGO | Gases | MGO | 85% MeOH + 15% MGO | |||||||||
ME | AE 1 | AE 2 | ME | AE 1 | AE 2 | ME | AE 1 | AE 2 | ME | AE 1 | AE 2 | ||
Model | 8ZAL40S | 6L26 | 9L26 | 8ZAL40S | 6L26 | 9L26 | CO2 | 35603 | 2781 | 4172 | 33945 | 2652 | 3978 |
No. of installed | 4 | 1 | 1 | 4 | 1 | 1 | CH4 | 0 | 0 | 0 | 0 | 0 | 0 |
MCR (kW) | 5760 | 1800 | 2700 | 5760 | 1800 | 2700 | N2O | 2 | 0 | 0 | 0 | 0 | 0 |
MCR total | 23040 | 1800 | 2700 | 23040 | 1800 | 2700 | NOX | 732 | 57 | 86 | 20 | 2 | 2 |
Load factor at sea | 0.70 | 0.70 | 0.70 | 0.70 | 0.70 | 0.70 | SO2 | 23 | 2 | 3 | 3 | 0 | 0 |
LF at manoeuvring | 0.70 | 0.70 | 0.70 | 0.70 | 0.70 | 0.70 | NH3 | 0 | 0 | 0 | 0 | 0 | 0 |
14 days for one trip | PM10 | 5 | 0 | 1 | 3 | 0 | 0 | ||||||
25 (assuming 15 days of repair and maintenance) trips in 1 year | NMVOC | 28 | 2 | 3 | 4 | 0 | 1 | ||||||
8400 running hours in 1 year | CO | 63 | 5 | 7 | 10 | 1 | 1 | ||||||
Total | 36457 | 2848 | 4272 | 33985 | 2655 | 3983 |
Appendix 3: Ranking of criteria for ship-owners through AHP
Criteria | CAPEX | OPEX | Payback period | MBM | Criteria | CAPEX | OPEX | Payback period | MBM | Total | Ranking |
---|---|---|---|---|---|---|---|---|---|---|---|
CAPEX | 1.00 | 5.00 | 4.00 | 7.00 | CAPEX | 0.63 | 0.54 | 0.73 | 0.41 | 2.30 | 1.00 |
OPEX | 0.20 | 1.00 | 0.33 | 3.00 | OPEX | 0.13 | 0.11 | 0.06 | 0.18 | 0.47 | 3.00 |
Payback period | 0.25 | 3.00 | 1.00 | 6.00 | Payback period | 0.16 | 0.32 | 0.18 | 0.35 | 1.01 | 2.00 |
Carbon tax | 0.14 | 0.33 | 0.17 | 1.00 | Carbon tax | 0.09 | 0.04 | 0.03 | 0.06 | 0.21 | 4.00 |
Total | 1.59 | 9.33 | 5.50 | 17.00 | Total | 1.00 | 1.00 | 1.00 | 1.00 | 4.00 |
Appendix 4: Calculation of external costs for M.V. Stena Germanica
Voyage | Berthing | Manoeuvring | Free sailing | Berthing | Manoeuvring | Free sailing | ||
Time in hours | 300 | 50 | 3850 | 300 | 50 | 3850 | ||
Port | Kiel | Kiel | Kiel | Gothenburg | Gothenburg | Gothenburg | ||
Air pollution cost factor | CO2 | 0.03 | 0.03 | 0.03 | 0.03 | 0.03 | 0.03 | HEATCOa project |
NOX | 12.7 | 12.7 | 12.7 | 4.1 | 4.1 | 4.1 | HEATCO project | |
SO2 | 10.9 | 10.9 | 10.9 | 4.2 | 4.2 | 4.2 | HEATCO project | |
PM | 227.6 | 227.6 | 33.6 | 231.3 | 231.3 | 17.0 | HEATCO project | |
MGO (external cost Euros) | CO2 | 45596.3 | 7599.4 | 585152.8 | 45596.3 | 7599.4 | 585152.8 | |
NOX | 396625.6 | 66104.3 | 5090028.2 | 128044.5 | 21340.7 | 1643237.4 | ||
SO2 | 10666.2 | 1777.7 | 136883.0 | 4109.9 | 685.0 | 52743.9 | ||
PM | 52125.6 | 8687.6 | 98754.6 | 52972.9 | 8828.8 | 49965.1 | ||
Total external cost | 505013.7 | 84168.9 | 5910818.6 | 230723.7 | 38453.9 | 2331099.3 | ||
MeOH (external cost Euros) | CO2 | 43097.9 | 7183.0 | 553089.7 | 43097.9 | 7183.0 | 553089.7 | |
NOX | 74036.8 | 12339.5 | 950138.6 | 23901.6 | 3983.6 | 306737.7 | ||
SO2 | 0 | 0 | 0 | 0 | 0 | 0 | ||
PM | 20376.4 | 3396.1 | 38604.1 | 20707.6 | 3451.3 | 19531.8 | ||
Total external cost | 137511.0 | 22918.5 | 1541832.3 | 87707.1 | 14617.9 | 879359.1 |
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Srivastava, A., Ölçer, A.I., Ballini, F. (2018). Decision Framework for Shipowners to Comply with Air Emission Reduction Measures: A Case Study of Methanol as a Fuel. In: Ölçer, A., Kitada, M., Dalaklis, D., Ballini, F. (eds) Trends and Challenges in Maritime Energy Management. WMU Studies in Maritime Affairs, vol 6. Springer, Cham. https://doi.org/10.1007/978-3-319-74576-3_29
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