Ship speed vs power or fuel consumption: Are laws of physics still valid? Regression analysis pitfalls and misguided policy implications
There have been a number of recent papers in the literature that investigate the relationship between ship speed and required power, or between ship speed and fuel consumption. Using regression analyses for selected case studies these papers show that in many cases the traditional “cube law” is not...
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| Format: | Article |
| Language: | English |
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Elsevier
2023-06-01
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| Series: | Cleaner Logistics and Supply Chain |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2772390923000203 |
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| author | Harilaos N. Psaraftis Sotiria Lagouvardou |
| author_facet | Harilaos N. Psaraftis Sotiria Lagouvardou |
| author_sort | Harilaos N. Psaraftis |
| collection | DOAJ |
| description | There have been a number of recent papers in the literature that investigate the relationship between ship speed and required power, or between ship speed and fuel consumption. Using regression analyses for selected case studies these papers show that in many cases the traditional “cube law” is not valid, and exponents lower than 3 (and in some cases lower than 2 or even below 1) are more appropriate. Perhaps more important, they use these results to derive implications on the validity (or lack thereof) of policies to reduce greenhouse gas (GHG) emissions from ships through slow steaming. This paper reviews some of these papers and shows that their results are partially based on pitfalls in the analysis which are identified. Policy implications particularly on the quest to reduce GHG emissions from ships are also discussed. |
| format | Article |
| id | doaj-art-ffb9419a41e94e2f943e9ce31bc054d2 |
| institution | DOAJ |
| issn | 2772-3909 |
| language | English |
| publishDate | 2023-06-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Cleaner Logistics and Supply Chain |
| spelling | doaj-art-ffb9419a41e94e2f943e9ce31bc054d22025-08-20T02:50:20ZengElsevierCleaner Logistics and Supply Chain2772-39092023-06-01710011110.1016/j.clscn.2023.100111Ship speed vs power or fuel consumption: Are laws of physics still valid? Regression analysis pitfalls and misguided policy implicationsHarilaos N. Psaraftis0Sotiria Lagouvardou1Corresponding author.; Department of Technology, Management and Economics, Technical University of Denmark, 2800 Κgs Lyngby, DenmarkDepartment of Technology, Management and Economics, Technical University of Denmark, 2800 Κgs Lyngby, DenmarkThere have been a number of recent papers in the literature that investigate the relationship between ship speed and required power, or between ship speed and fuel consumption. Using regression analyses for selected case studies these papers show that in many cases the traditional “cube law” is not valid, and exponents lower than 3 (and in some cases lower than 2 or even below 1) are more appropriate. Perhaps more important, they use these results to derive implications on the validity (or lack thereof) of policies to reduce greenhouse gas (GHG) emissions from ships through slow steaming. This paper reviews some of these papers and shows that their results are partially based on pitfalls in the analysis which are identified. Policy implications particularly on the quest to reduce GHG emissions from ships are also discussed.http://www.sciencedirect.com/science/article/pii/S2772390923000203Ship fuel consumptionShip speedGreenhouse gas emissionsRegression analysis |
| spellingShingle | Harilaos N. Psaraftis Sotiria Lagouvardou Ship speed vs power or fuel consumption: Are laws of physics still valid? Regression analysis pitfalls and misguided policy implications Cleaner Logistics and Supply Chain Ship fuel consumption Ship speed Greenhouse gas emissions Regression analysis |
| title | Ship speed vs power or fuel consumption: Are laws of physics still valid? Regression analysis pitfalls and misguided policy implications |
| title_full | Ship speed vs power or fuel consumption: Are laws of physics still valid? Regression analysis pitfalls and misguided policy implications |
| title_fullStr | Ship speed vs power or fuel consumption: Are laws of physics still valid? Regression analysis pitfalls and misguided policy implications |
| title_full_unstemmed | Ship speed vs power or fuel consumption: Are laws of physics still valid? Regression analysis pitfalls and misguided policy implications |
| title_short | Ship speed vs power or fuel consumption: Are laws of physics still valid? Regression analysis pitfalls and misguided policy implications |
| title_sort | ship speed vs power or fuel consumption are laws of physics still valid regression analysis pitfalls and misguided policy implications |
| topic | Ship fuel consumption Ship speed Greenhouse gas emissions Regression analysis |
| url | http://www.sciencedirect.com/science/article/pii/S2772390923000203 |
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