Wind Assisted Ship PropulsionTechnologies – Can they Help in Emissions Reduction?

Petković, Miro; Zubčić, Marko; Krčum, Maja; Pavić, Ivan

doi:10.17818/nm/2021/2.6

Cited by 9 publications

(6 citation statements)

References 27 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Jurnal Inovasi Vokasional dan Teknologi P-ISSN: 1411-3414 E-ISSN: 2549-9815 contributes to reducing emissions, without forgetting the challenges of implementation technology won the suitability of the ship's operational needs. However, the percentage of savings and emission reductions depends on ship design, hull shape, operational speed, wind speed and direction of wind [14]. Some opinions seem to state that using sails is like doing old technology that existed before machinery in the shipping sector.…”

Section: N V O T E Kmentioning

confidence: 99%

Fluid Dynamic Simulation of Sail Design Performance on Sail-Assisted Ship; A Preliminary Study

Ariani,

Ponidi,

Coutsar

et al. 2024

INVOTEK

View full text Add to dashboard Cite

Ships are a reliable means of transportation in an archipelagic country like Indonesia. The high use of fossil fuels in sea transportation is one of the contributors to emissions that needs attention apart from their dwindling availability. Efforts to use sails as an additional propulsion force on ships are one of the green technology issues in shipping for reducing the use of fossil fuels. It is about how the design affects the thrust on the ship. Tests were carried out on models M1, M2, and M3 in variations 0°, 30°, and 45° wind angles in computational fluid dynamic simulation at 12 knots constant speed. Through this article, there will be a discourse related to optimizing the design of the sail to produce energy efficiency and reduce the use of fossil fuels on ships. The shaped M3 makes greater thrust on the ships than the other two models. The tendency of a decrease in the thrust of the sails with an increase in the wind direction angle, the distribution of force in two directions, namely as normal and parallel to the sails, is suspected as the cause.

show abstract

Section: N V O T E Kmentioning

confidence: 99%

Fluid Dynamic Simulation of Sail Design Performance on Sail-Assisted Ship; A Preliminary Study

Ariani,

Ponidi,

Coutsar

et al. 2024

INVOTEK

View full text Add to dashboard Cite

show abstract

“…Maintaining and restoring the rheological characteristics of technical fluids is also possible by chemical treatment. In this case, additional reagents are introduced into the volume of the liquid, which, due to intermolecular interactions, ensure the maintenance of the homogeneity of the liquid at the required level during the periods of storage and transportation [19,20].…”

Section: Research Of Existing Solutions To the Problemmentioning

confidence: 99%

Development of a method for maintaining the performance of drilling fluids during transportation by Platform Supply Vessel

Maryanov

2021

TAPR

View full text Add to dashboard Cite

The object of research is the process of transportation of drilling fluid used for lubrication and cooling of drilling equipment of offshore oil production platforms. The subject of the study is the stratification of the density of the drilling fluid along the height of the cargo tank in which it is transported. The technology of transportation of drilling fluid on the Platform Supply Vessel is considered. A problematic point in ensuring this process is that during the transportation of drilling fluids, due to the action of gravitational forces on organic and inorganic compounds in their volume, there is a latent change in their dispersion over the volume of the fluid. This leads to the stratification and stratification of the fluid density along the height, as well as to the formation of sediments at the bottom of the cargo tanks, in which the drilling fluid is transported. The study is aimed at developing a technology that maintains a constant value of the density of the drilling fluid along the depth of the tank in which it is transported. The studies were carried out in the vessel system for transporting drilling fluid of a specialized marine vessel of the Platform Supply Vessel type with a deadweight of 5850 tons. It is experimentally established that for a transportation time of 6–36 hours, the density stratification of the drilling fluid is 3.04–32.04 %. As a method that ensures the minimum stratification of the density of the drilling fluid during its transportation, it is proposed to use an additional X-shaped circulation of the drilling fluid in the volume of adjacent cargo tanks. Studies have confirmed that the density stratification over a time period of 6–36 hours decreases to a range of 2.30–9.01 %. The complex use of additional X-shaped circulation and simultaneous air supply to the bottom of the cargo tank provides a density stratification value of 0.73–2.93 %. The proposed technology was tested on a specialized seagoing vessel of the Platform Supply Vessel type with a deadweight of 5850 tons and can be used on offshore vessels that ensure the operation of offshore oil production platforms.

show abstract

“…Energy efficiency technologies [6][7][8][9] can be adapted to ship systems where there is high potential for cutting costs: air lubrication systems, wind-assisted propulsion [10] such as Flettner rotors, kite and sail propulsion, marine battery systems, or any energy storage systems [11], waste heat recovery systems [12][13][14] or energy recovery systems, exhaust gas cleaning systems [15] according to requirements set by maritime regulations, propeller efficiency retrofit, rudder efficiency retrofit, operated system or equipment auxiliary saving technologies to reduce energy consumption, shaft generators, engine tuning, trim optimization, coating or antifoul evaluation, cold ironing, HVAC&R to improve energy efficiency, and insulation improvements to reduce energy losses.…”

Section: Introductionmentioning

confidence: 99%

Future Sustainable Maritime Sector: Energy Efficiency Improvement and Environmental Impact Reduction for Fishing Carriers Older than 20 Years in the Fleet Part II

Yalama

Yakovleva

Трандафілов

et al. 2022

Polish Maritime Research

View full text Add to dashboard Cite

For the maritime sector to be sustainable and to have an intact blue economy, shipowners should be ready to implement Ship Energy Efficiency Management Plans alongside energy efficiency projects. The problem for organizations and shipowners having fishing carriers older than 20 years is highlighted and the following challenges arise for decision-making authorities. To keep such ships in the fleet for the next decade, shipowners should deploy energy efficiency projects for marine system retrofitting to improve energy efficiency and meet environmental regulations. An energy audit is performed and an energy efficiency program is proposed with guidelines for regulations that are currently coming into force. To improve energy efficiency, reduce the environmental impact, and cut fuel consumption costs, marine system retrofitting is done, in a particular case, with two options proposed. The first is a cascade refrigeration system with hydrocarbons and carbon dioxide, where the shipowner gains an energy efficiency improvement of about 20%. The second option is a two-stage refrigeration system with ammonium as the environmentally friendly refrigerant, which improves the energy efficiency by about 26%. Technical and economic issues have been discussed.

show abstract

Wind Assisted Ship PropulsionTechnologies – Can they Help in Emissions Reduction?

Cited by 9 publications

References 27 publications

Fluid Dynamic Simulation of Sail Design Performance on Sail-Assisted Ship; A Preliminary Study

Fluid Dynamic Simulation of Sail Design Performance on Sail-Assisted Ship; A Preliminary Study

Development of a method for maintaining the performance of drilling fluids during transportation by Platform Supply Vessel

Future Sustainable Maritime Sector: Energy Efficiency Improvement and Environmental Impact Reduction for Fishing Carriers Older than 20 Years in the Fleet Part II

Contact Info

Product

Resources

About