碩士 / 國立成功大學 / 交通管理科學系 / 104 / This paper used the Activity-based method to calculate fuel consumption and the corresponding emissions of Feeder, Panamax, Post-Panamax and New-Panamax container vessels, and by including the CATCH model to evaluate the impact of bunker cost changes on three scenarios of speed reduction (10%, 20%, and 30%). This paper developed a profit model to analyze the economic and environmental effects of slow-steaming in different economic conditions, freight rates, bunker prices with carbon trading.
The results were as follow: (1) The CO2 emission intensity for Feeder, Panamax, Post-Panamax and New-Panamax container vessels was 14.25, 10.56, 9.57, 9.10 grams of CO2 per tonne nautical mile respectively. The results show that New-Panamax vessels lead to better environmental outcomes than Feeder. (2) By decelerating the cruising speed by 10%, 20%, 30% Feeder vessels reduced emission intensity to 11.54, 9.12, 6.98 grams of CO2 per tonne nautical mile respectively, whereas New-Panamax vessels reduced emission intensity to 7.37, 5.83, 4.46 grams of CO2 per tonne nautical mile respectively. When the same deceleration speed applies, which proves that slow-steaming practice has a positive impact on the environmental protection. (3) This paper devised the CATCH model to identify the cost of averting a tonne of CO2-eq, the results show that the CATCH value of larger ships is the highest, as a result of the high slot costs, meanwhile, the second-highest are smaller ships, due to lack of capacity efficiency. Considering all these factors, we draw a conclusion that Post-Panamax vessels are the best choice based on economic terms with application to the NE7 loop as a case study. (4) Under different economic conditions, the results justify that Panamax practiced 10% of slow-steaming which remains optimal only at high bunker prices across all scenarios; whereas Post-Panamax practiced 20%, 10% of slow steaming remains optimal at high and medium bunker prices; however There is no incentive for liner operators to practice slow-steaming at low bunker price. (5) In terms of emissions reduction, decelerating the cruising speed by 10%, 20%, 30% reduced emissions by 9%, 20%, 33% respectively.(6) The results reveal that the optimal deployment of vessels when sailing at low, medium, high prices of bunker prices for Panamax vessels are at 24.5, 24.5, 22.05 knots respectively, while 8, 9, 9 vessels are required, whereas Post-Panamax vessels are at 25, 22.5, 20 knots respectively, while 8, 9, 10 vessels are needed to guarantee the same weekly call.
| Identifer | oai:union.ndltd.org:TW/104NCKU5119011 |
| Date | January 2016 |
| Creators | Chia-NiHsieh, 謝佳妮 |
| Contributors | Ching-Chih Chang, 張瀞之 |
| Source Sets | National Digital Library of Theses and Dissertations in Taiwan |
| Language | zh-TW |
| Detected Language | English |
| Type | 學位論文 ; thesis |
| Format | 83 |
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