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Decision Framework for Shipowners to Comply with Air Emission Reduction Measures: A Case Study of Methanol as a Fuel

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Trends and Challenges in Maritime Energy Management

Part of the book series: WMU Studies in Maritime Affairs ((WMUSTUD,volume 6))

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. 1.

    International Code of the Construction and Equipment of Ships Carrying Liquefied Gases in Bulk (IGC Code).

  2. 2.

    The IBC Code provides an international standard for the safe carriage in bulk by sea of dangerous chemicals and noxious liquid substances.

  3. 3.

    Discount rate is chosen as 10%.

  4. 4.

    Tax rate is taken from tax yearbook of Sweden 2014 http://www.skatteverket.se/.

  5. 5.

    Useful asset life is taken from STENA AB 2015 financial report.

  6. 6.

    Exchange rate is taken from Sveriges Riksbank.

  7. 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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Correspondence to Aditya Srivastava .

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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

 
  1. aHandbook on estimation of external costs in the transport sector, Maibach et al. (2008)

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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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  • DOI: https://doi.org/10.1007/978-3-319-74576-3_29

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