Acoustic methods for biofouling control: A review

Legg, Mathew; Yücel, Mehmet K.; Carellan, I. Garcia de; Kappatos, Vassilios; Selcuk, Cem; Gan, Tat-Hean

doi:10.1016/j.oceaneng.2015.04.070

Cited by 84 publications

(48 citation statements)

References 52 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Finally, it should be noted that many of the studies carried out so far, are within small-scale laboratory environments with single species. Legg et al (2015) in a comprehensive review has discussed and concluded that more photographically documented trials need to be performed to work out the optimum operational factors and practical conditions of use of an efficient and environmentally safe acoustic anti-biofouling system for a wide range of fouling organisms [18]. In fact, it has been extensively reported that the acoustic-based strategies and technologies for fouling prevention and removal, applied on ships, vessels and docks, are needed to be improved.…”

Section: 2antifouling Techniques and Associated Drawbacksmentioning

confidence: 99%

“…Moreover, vibrometry results evaluated the energy propagation on the contact surface of the transducers at the selected frequencies. In the following, dispersion curve and wave mode analyses following the principles of UGW were performed to determine the best excitation wave mode and the geometrical arrangement of the [14][15][16][17][18][19][20][21][22][23][24][25][26][27][28][29][30] transducer array that most efficiently deliver distributed energy over the ship hull represented by the test plate. Finally, the plate was immersed in sea water in a port and the results were monitored photographically.…”

Section: 1overall Approachmentioning

confidence: 99%

“…The ability to generate a frequency sweep is a useful feature as it potentially prevents the formation of null points due to effects such as the interference of transmitted and reflected waves. The frequency sweep also reduces the possibility [14][15][16][17][18][19][20][21][22][23][24][25][26][27][28][29][30] of overloading the system due to the low impedance of the transducers at their resonance frequency. A frequency sweep may be implemented by varying the voltage across the frequency control resistor with time, using a frequency sweep circuit.…”

Section: Signal Generatormentioning

confidence: 99%

See 2 more Smart Citations

An Acoustic Antifouling Study in Sea Environment for Ship Hulls Using Ultrasonic Guided Waves

Habibi

Gan

Legg³

et al. 2020

Int. J. Eng. Tech. Mgmt. Res.

View full text Add to dashboard Cite

Biofouling results in a range of adverse issues for ships and boats such as an increase in hydrodynamic drag force and fuel consumption and increased maintenance cost. To address this issue, toxic antifouling coatings have been developed. However, these toxic coatings can pose threats to marine life. This has led to research on less harmful techniques such as acoustic methods in the main implemented as laboratory trials. In fact, there have been relatively few sea trials and these are poorly documented. The current work has performed one of the few implemented field trials and the only one to be fully documented. In this sea trial, an optimised array of transducers generating ultrasound guided waves was attached to a hull representative plate in a port environment. The results of this work are evidenced by the significant reduction in-situ of a wide range of biofouling materials and organisms. The documented photographical evidence makes up for its scarcity in the published records of antifouling advances using acoustic techniques.

show abstract

Section: 2antifouling Techniques and Associated Drawbacksmentioning

confidence: 99%

Section: 1overall Approachmentioning

confidence: 99%

Section: Signal Generatormentioning

confidence: 99%

See 1 more Smart Citation

An Acoustic Antifouling Study in Sea Environment for Ship Hulls Using Ultrasonic Guided Waves

Habibi

Gan

Legg³

et al. 2020

Int. J. Eng. Tech. Mgmt. Res.

View full text Add to dashboard Cite

show abstract

“…7.2.2 Fouling Resistance. Biofouling comprises the accumulation of organic materials on a surface, which has been shown to decrease the lifetime of marine structures ( Ref 23,45,115,116). The design of techniques to avoid biofouling has been the main interest of several research studies (Ref 23, 45).…”

Section: Application-based Techniquesmentioning

confidence: 99%

A Review of Thermal Spray Metallization of Polymer-Based Structures

et al. 2016

View full text Add to dashboard Cite

A literature review on the thermal spray deposition of metals onto polymer-based structures is presented. The deposition of metals onto polymer-based structures has been developed to enhance the thermal and electrical properties of the resulting metal-polymer material system. First, the description of the thermal spray metallization processes and technologies for polymer-based materials are outlined. Then, polymer surface preparation methods and the deposition of metal bond-coats are explored. Moreover, the thermal spray process parameters that affect the properties of metal deposits on polymers are described, followed by studies on the temperature distribution within the polymer substrate during the thermal spray process. The objective of this review is devoted to testing and potential applications of thermal-sprayed metal coatings deposited onto polymer-based substrates. This review aims to summarize the state-of-the-art contributions to research on the thermal spray metallization of polymer-based materials, which has gained recent attention for potential and novel applications.

show abstract

“…Biofouling is a major dilemma for many materials when exposed to chemically aggressive sea water 13 . It is the growth of micro-organisms at the interface of metal 14 , and this problem has caused an increase in maintenance, fuel and downtime costs to the shipping industry 15 . 10 wt % of Cu was added to Al and Ti, and the resulting sample is subjected to corrosion test in natural sea water.…”

Section: Introductionmentioning

confidence: 99%

Laser Surface Modification of Ti6Al4V-Cu for Improved Microhardness and Wear Resistance Properties

Erinosho

Akinlabi

Pityana³

et al. 2017

Mat. Res.

View full text Add to dashboard Cite

To modify the properties of Ti6Al4V alloy, Cu has been added to host an antimicrobial effect in the revised alloy for marine application. The Laser Metal Deposition (LMD) process on the Ti6Al4V alloy and Cu was been investigated for surface modification in order to combat the problem of biofouling in the marine industry. The investigations focused on the microstructural observations, micro-hardness measurements and dry sliding wear in the presence of 3 and 5 weight percents of Cu. The microstructure results showed that Widmanstätten microstructures were formed in all the samples and lose their robustness towards the fusion zone as a result of the transition of heat sink towards the substrate. The microhardness values of Ti6Al4V-3Cu and Ti6Al4V-5Cu alloys were greatly improved to 547±16 VHN 0.5 and 519±54 VHN 0.5 respectively. Furthermore, the behaviour of wear loss on the surface of the Ti6Al4V-Cu alloys exhibited great improvement as compared with the parent material.

show abstract

Acoustic methods for biofouling control: A review

Cited by 84 publications

References 52 publications

An Acoustic Antifouling Study in Sea Environment for Ship Hulls Using Ultrasonic Guided Waves

An Acoustic Antifouling Study in Sea Environment for Ship Hulls Using Ultrasonic Guided Waves

A Review of Thermal Spray Metallization of Polymer-Based Structures

Laser Surface Modification of Ti6Al4V-Cu for Improved Microhardness and Wear Resistance Properties

Contact Info

Product

Resources

About