SEEMP: Energy Management and the Shipping Industry

Dev, AK; Singhal, NS

doi:10.3850/978-981-07-7338-0_osv2013-06

Cited by 3 publications

(3 citation statements)

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“…As was previously indicated, the interaction of the waves created by the hulls is caused by the location of the different hulls in relation to the separation (S) between them. This suggests that if the hulls are positioned in such a manner that there is no contact between the hulls, then there would be no interference resistance encountered [5]. This interference resistance may be minimized, removed, and even used to one's benefit if one investigates the differences in separation.…”

Section: Methods a Resistance Testmentioning

confidence: 99%

Eedi Analysis for Trimaran Feeder at Maluku Waters

Luhulima

2023

ETJ

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The international maritime organization (IMO) has worked since 2009 to minimize harmful gas emissions from marine traffic. Due to its worldwide climate effect, IMO has implemented an energy efficiency design index (EEDI) to monitor and quantify CO2 emissions. Due to 1.0-meter wave height, Maluku waters remain quiet. For transporting from distant, outermost, and border places, feeder ships will work better. The three-body vessel (trimaran) has a vast deck surface and can efficiently feed tiny islands. This study analyzes trimaran vessel EEDI and resistance using Froude number Fr = 0.21 speed and transverse distance S/L = 0.2, 0.3, 0.4, and 0.5. Experimental calculations show a large fluctuation in hull distance. The trimaran ships with S/L=0.5 have the least resistance and essentially equal calculation results to independent trimarans. This shows that the trimaran with a 0.5 hull ratio has little hull interference. For trimaran ships, EEDI estimates suggest operating below Fr=0.21, which meets IMO criteria.

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Section: Methods a Resistance Testmentioning

confidence: 99%

Eedi Analysis for Trimaran Feeder at Maluku Waters

Luhulima

2023

ETJ

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“…EEDI is calculated using a complicated algorithm that takes into consideration the ship's emissions, capacity, and speed. In accordance with the defi nition of EEDI provided by the ICCT (International Council on Clean Transportation) [32], it may be estimated using the following equation ( 5): (5) In Equation ( 4), P is the independent engine power at 75% of MCR (kW), C is the CO 2 emission determined the association on the fuel type that was used by provided engine, (t-CO 2 /t-Fuel), SFC is the specifi c fuel consumed per unit of engine power, as certifi ed by the manufacturer, (g/kWh), f is the non-dimensional factors which were added to the EEDI approximation to profi le for several specifi c present system, and v ref is the service speed at maximum load (knot), c is the capacity in deadweight tonnage (DWT) or Gross Tonnage (GT).…”

Section: Eedi (Energy Effi Ciency Design Index) / Projektni Indeks En...mentioning

confidence: 99%

“…IMO has completed implementing EEDI by targeting ships which use the most fuel in the marine fl eet. Thus, 72% of the commercial fl eet is made energy effi cient with this purpose [5]. As of January 1, 2013, EEDI deployments have begun, and energy effi ciency strategies have been developed every fi ve years to account for emerging technology in this sector [6].…”

Section: Introduction / Uvod *mentioning

confidence: 99%

The Resistance and EEDI Analysis of Trimaran Vessel with and without Axe-bow

Luhulima¹,

Sutiyo²,

Utama³

2022

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Efforts to reduce emission of toxic gases into the atmosphere by sea transportation have been consistently carried out by the International Maritime Organisation (IMO) since 2009. IMO has introduced a regime known as energy efficiency design index (EEDI) to monitor and quantify the emission of CO2 because of its global climate impact. A comparison was conducted between trimaran hull forms without and with Axe-Bow on the main-hull with S/L=0.3 and 0.4, as well as a comparison with a monohull of comparable displacement. The CFD method was used to analyse resistance. Overall, the trimaran without the Axe-Bow can decrease resistance by 22.6%, while the trimaran with the axe-bow can reduce resistance by 25.0%. Additionally, this resulted in a 54.8% decrease in EEDI on trimarans without axe-bow and a 55.4% reduction on trimaran equipped with axe-bow when compared to MV Sabuk Nusantara 104. In addition, despite little difference between trimaran with and without axe-bow, the introduction of axe-bow has shown apparent benefits to lower EEDI.

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Prediction of ship fuel consumption based on Elastic network regression model

Zuo

et al. 2021

2021 8th International Conference on Information, Cybernetics, and Computational Social Systems (ICCSS)

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SEEMP: Energy Management and the Shipping Industry

Cited by 3 publications

References 0 publications

Eedi Analysis for Trimaran Feeder at Maluku Waters

Eedi Analysis for Trimaran Feeder at Maluku Waters

The Resistance and EEDI Analysis of Trimaran Vessel with and without Axe-bow

Prediction of ship fuel consumption based on Elastic network regression model

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