Reducing fishing vessel fuel consumption and NOX emissions

Latorre, Robert

doi:10.1016/s0029-8018(00)00031-7

Cited by 16 publications

(7 citation statements)

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“…For instance, ship emissions impact the greenhouse gas budget through CO 2 , CH 4 , and N 2 O, − the solar radiation budget through black carbon and sulfur containing particles, − human health through hydrocarbons, CO and fine particles, ,− and acid rain through NO x and SO 2 . − In previous decades, the main compounds emitted from ships have been investigated by methods such as engine tests in laboratories, on-board studies and aircraft measurements for plume tracking. − However, almost all of the studies focused on low-speed or medium-speed large engines installed on ocean-going vessels and coastal transport ships. Very few studies have involved fishing boats with high-speed engines generally, − and those were aimed at energy savings, impact of fuel on emissions, etc. Fishing boats are typically used in large numbers and are active in nearshore areas in countries with developed fisheries, such as China.…”

Section: Introductionmentioning

confidence: 99%

Real-World Emission Factors of Gaseous and Particulate Pollutants from Marine Fishing Boats and Their Total Emissions in China

Zhang

Chen

et al. 2018

Environ. Sci. Technol.

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Pollutants from fishing boats have generally been neglected worldwide, and there is an acute shortage of measured emission data, especially in China. Therefore, on-board measurements of pollutants emitted from 12 different fishing boats in China (including gill net, angling, and trawler boats) were carried out in this study to investigate emission factors (EFs), characteristics and total emissions. The average EFs for CO, CO, NO , PM, and SO were 3074 ± 55.9, 50.6 ± 31.7, 54.2 ± 30.7, 9.54 ± 2.24, and 5.94 ± 6.38 g (kg fuel), respectively, which were higher than those from previous studies of fishing boats. When compared to medium-speed and slow-speed engine vessels, high-speed engines on fishing boats had higher CO EFs but lower NO EFs. Notably, when fishing boats were in low-load conditions, they always had higher EFs of CO, PM, and NO compared to other operating modes. The estimated results showed that emissions from motor-powered fishing boats in China in 2012 (232, 379, and 61.8 kt CO, NO and PM) accounted for 10.7%, 10.9%, and 19.3% of the total CO, NO and PM emitted from nonroad mobile sources, which means significant contribution of fishing boats to air pollution, especially in southern China areas.

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Section: Introductionmentioning

confidence: 99%

Real-World Emission Factors of Gaseous and Particulate Pollutants from Marine Fishing Boats and Their Total Emissions in China

Zhang

Chen

et al. 2018

Environ. Sci. Technol.

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“…The vessels with a lower weight is prioritized in passing through the ship lock, and most of the high-weighted cargo vessels are arranged in the end of the sequence. Nevertheless, the vessel weight is a critical parameter for fuel consumption even when the vessels are parked at the anchorage [31], and due to the long waiting time, the high-weighted cargo vessels not only have a higher fuel consumption but also result in a higher cost and more carbon emissions.…”

Section: Problem Descriptionmentioning

confidence: 99%

“…Nevertheless, this cubic relationship has been criticized by many researchers due to its incapability in performing an accurate estimation of fuel consumption when the speed of vessels is low [23]. In fact, there may also be a large fuel consumption when the vessels travel in low speed or park at the anchorage, and in those cases, the fuel consumption is still positively correlated to the payload and weight of the vessel if empty [31]. In order to obtain more accurate estimation on the fuel consumption of vessels, Equation (1) formulated by Kontovas [23] is employed.…”

Section: Fuel Consumptionmentioning

confidence: 99%

An Improved Mathematical Model for Green Lock Scheduling Problem of the Three Gorges Dam

Zhao

Lin

2019

Sustainability

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In recent years, the environmental pollutions at the Three Gorges Dam have become an increasingly concerning issue of the Chinese government. One of the most significant environmental problems is the carbon emissions from the lockage operations at the two ship locks of the Three Gorges Dam. Currently, due to the large amount of vessels passing through the dam, there is always a long queue of vessels on both sides and the average waiting time is long. This has further lead to an increased amount of fuel consumption and carbon emissions. Therefore, it is of great importance to develop a decision-support model for a better navigation scheduling and planning of the lockage operations at the Three Gorges Dam. This paper proposed an improved mixed integer non-linear programming model for the green lock scheduling problem at the Three Gorges Dam. The model aims at minimizing the carbon emissions and the waiting time in the lockage process through scheduling the vessels in a fairer and more efficient manner. Moreover, a greedy particle swarm optimization (G-PSO) algorithm is developed to solve the complex optimization problem. The proposed mathematical model and algorithm are validated through a numerical experiment. The result shows that it may lead to a significant reduction on carbon emissions by giving a specified speed to each vessel with a pre-optimized sequence. Meanwhile, the fairness and efficiency of the lockage process may also be improved.

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“…From the seafood consumer perspective, it is important to characterize the emissions per weight of catch (g NO x /kg catch). Latorre [5] summarized the representative values of kg catch/L fuel burned for different fishing vessel operations. Using the value of 57 kg NO x /tonne fuel (Table 1) it is possible to obtain the values for different fishing vessels.…”

Section: Estimate Of No X Per Kilogramme Of Catchmentioning

confidence: 99%

“…This opens the question as to whether older US fishing vessels are creating significant levels of exhaust emissions? A number of authors have noted that newer fishing vessels are being built with increasingly larger diesel propulsion engines (see reference [5]). If this is the case then the fishing vessel exhaust emissions should show a different trend.…”

Section: Chacterization Of Us Fishing Fleet Power By Decadementioning

confidence: 99%

Development of an emission assessment scheme for a fishing vessel diesel propulsion engine

Latorre

Cardella

2008

Proceedings of the Institution of Mechanical Engineers, Part M:

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While a significant effort has been made to reduce marine diesel exhaust emissions, there is a need to examine the world fleets and assess the current levels of engine emissions. This paper introduces an emission assessment scheme that the authors have applied to analyse the US fishing fleet with length L . 22.9 m. The present results give an estimate that the 1051 vessels in the US fishing fleet produce 306 tonnes/day of nitrous oxides (NO x ). The largest power values are found in the decades of 1960 to 1980. The actual power (kW) is compared with a reference power (kW o ) using the powering index ratio (PIR 5 kW/kW o ). It was found that 50-80 per cent of the power in seiners, trawlers, and crabber/trapper/clam vessels have a PIR . 2.5. Based on this assessment, it is clear that a large number of trawlers and seiners are overpowered -resulting in high diesel engine NO x emissions.

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Reducing fishing vessel fuel consumption and NOX emissions

Cited by 16 publications

References 0 publications

Real-World Emission Factors of Gaseous and Particulate Pollutants from Marine Fishing Boats and Their Total Emissions in China

Real-World Emission Factors of Gaseous and Particulate Pollutants from Marine Fishing Boats and Their Total Emissions in China

An Improved Mathematical Model for Green Lock Scheduling Problem of the Three Gorges Dam

Development of an emission assessment scheme for a fishing vessel diesel propulsion engine

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