The Experts below are selected from a list of 33 Experts worldwide ranked by ideXlab platform

Mehmet Atlar - One of the best experts on this subject based on the ideXlab platform.

  • effects of in service conditions mimicked hull roughness ranges and biofilms on the surface and the hydrodynamic characteristics of Foul Release type Coatings
    Biofouling, 2020
    Co-Authors: Irma Yeginbayeva, Mehmet Atlar, Serkan Turkmen, H Chen
    Abstract:

    To develop a better understanding of ‘in-service’ performance of modern marine Coatings, this study explored the combined effects of different roughness ranges of Foul-Release Coating (FRC) and lig...

  • An experimental investigation of the effect of Foul Release Coating application on performance, noise and cavitation characteristics of marine propellers
    Ocean Engineering, 2012
    Co-Authors: Emin Korkut, Mehmet Atlar
    Abstract:

    A number of ship propellers have been coated with anti-Fouling paint, namely Foul Release, to improve propeller efficiency as a result of dramatic increases in fuel prices. This has recently been coupled with tougher environmental regulations forcing the shipping community to review their anti-Fouling policies. With the introduction of a new generation antiFouling Coatings, it is now possible to apply these Coatings not only to keeping the hull free from bio-Fouling, but also on propellers to improve their performance. Within the above context an investigation into effect of the Coatings on the hydrodynamic performances of marine propellers were carried out. This paper reports on effects of Foul Release Coatings on the efficiency, cavitation and noise characteristics of a marine propeller at model scale. The paper includes the details of these tests conducted in Emerson Cavitation Tunnel of Newcastle University and discusses paint application, surface characterisation issues and analysis of test results for coated and uncoated conditions. The results indicated that Coating may not cause any performance reduction when applied correctly. Cavitation development on blades was slightly reduced by the Coating and the Coating of blades reduced noise level in non-cavitating condition, but increased in developed cavitation condition, requiring further investigation.

  • The effect of a Foul Release Coating on propeller performance
    2002
    Co-Authors: Mehmet Atlar, Ej Glover, Maxim Candries, Robert Mutton, Colin Anderson
    Abstract:

    With the imminent ban on the application of Coatings of TBT self-polishing co-polymers in January 2003 and their eventual prohibition in 2008 a great deal of research is being conducted into the performance of the possible alternatives. As part of the ongoing work investigating the hydrodynamic performance of Foul Release systems, being carried out at the University of Newcastle upon Tyne, a study into the possible benefits of their use on propellers has been conducted. The benefits that this method of propeller protection offers are potential fuel savings from increased propulsive efficiency as well as lower maintenance costs and a cleaner environment. Initially a literature review exploring the effect of propeller surface conditions on ship performance and previous work on propeller Coatings for merchant ships was conducted. Theoretical calculations on the possible gains were then explored for a merchant ship propeller type using a propeller lifting surface analysis program. These showed that the significant losses in efficiency caused by blade roughening can be avoided by the application of a Foul Release Coating with a surface finish equivalent to a new or well polished propeller.

  • low energy surfaces on high speed craft
    2nd International Euro Conference on High-Performance Marine Vehicles(HIPER '01), 2001
    Co-Authors: Maxim Candries, Mehmet Atlar, Colin Anderson
    Abstract:

    Foul Release systems offer a low-energy surface that prevents firm adhesion of Fouling organisms on underwater hulls. Above a critical threshold speed, hydrodynamic forces against the ship hull wash off any attached organisms. Particularly for high-speed, high-activity vessels, Foul Release systems offer an environmentally attractive, long-term, cost effective alternative to toxic biocidal antiFoulings. A research project has been set up to investigate whether the specific surface properties of Foul Release systems have a beneficial effect on its drag. Flat plate towing tank experiments have confirmed that the total resistance of a 6.3m plate coated with a Foul Release Coating system was 1.4% lower than when it was coated with a Tributyltin-free Self-Polishing Co-polymer (SPC). Surface analysis carried out with an optical measurement system has indicated that the mean absolute slope and the correlation length of the Foul Release sytem can differ from those of other Coatings by an order of magnitude. Part of ongoing research has been trying to correlate the roughness parameters with the observed drag reduction.

Colin Anderson - One of the best experts on this subject based on the ideXlab platform.

  • The effect of a Foul Release Coating on propeller performance
    2002
    Co-Authors: Mehmet Atlar, Ej Glover, Maxim Candries, Robert Mutton, Colin Anderson
    Abstract:

    With the imminent ban on the application of Coatings of TBT self-polishing co-polymers in January 2003 and their eventual prohibition in 2008 a great deal of research is being conducted into the performance of the possible alternatives. As part of the ongoing work investigating the hydrodynamic performance of Foul Release systems, being carried out at the University of Newcastle upon Tyne, a study into the possible benefits of their use on propellers has been conducted. The benefits that this method of propeller protection offers are potential fuel savings from increased propulsive efficiency as well as lower maintenance costs and a cleaner environment. Initially a literature review exploring the effect of propeller surface conditions on ship performance and previous work on propeller Coatings for merchant ships was conducted. Theoretical calculations on the possible gains were then explored for a merchant ship propeller type using a propeller lifting surface analysis program. These showed that the significant losses in efficiency caused by blade roughening can be avoided by the application of a Foul Release Coating with a surface finish equivalent to a new or well polished propeller.

  • low energy surfaces on high speed craft
    2nd International Euro Conference on High-Performance Marine Vehicles(HIPER '01), 2001
    Co-Authors: Maxim Candries, Mehmet Atlar, Colin Anderson
    Abstract:

    Foul Release systems offer a low-energy surface that prevents firm adhesion of Fouling organisms on underwater hulls. Above a critical threshold speed, hydrodynamic forces against the ship hull wash off any attached organisms. Particularly for high-speed, high-activity vessels, Foul Release systems offer an environmentally attractive, long-term, cost effective alternative to toxic biocidal antiFoulings. A research project has been set up to investigate whether the specific surface properties of Foul Release systems have a beneficial effect on its drag. Flat plate towing tank experiments have confirmed that the total resistance of a 6.3m plate coated with a Foul Release Coating system was 1.4% lower than when it was coated with a Tributyltin-free Self-Polishing Co-polymer (SPC). Surface analysis carried out with an optical measurement system has indicated that the mean absolute slope and the correlation length of the Foul Release sytem can differ from those of other Coatings by an order of magnitude. Part of ongoing research has been trying to correlate the roughness parameters with the observed drag reduction.

H Chen - One of the best experts on this subject based on the ideXlab platform.

Maxim Candries - One of the best experts on this subject based on the ideXlab platform.

  • The effect of a Foul Release Coating on propeller performance
    2002
    Co-Authors: Mehmet Atlar, Ej Glover, Maxim Candries, Robert Mutton, Colin Anderson
    Abstract:

    With the imminent ban on the application of Coatings of TBT self-polishing co-polymers in January 2003 and their eventual prohibition in 2008 a great deal of research is being conducted into the performance of the possible alternatives. As part of the ongoing work investigating the hydrodynamic performance of Foul Release systems, being carried out at the University of Newcastle upon Tyne, a study into the possible benefits of their use on propellers has been conducted. The benefits that this method of propeller protection offers are potential fuel savings from increased propulsive efficiency as well as lower maintenance costs and a cleaner environment. Initially a literature review exploring the effect of propeller surface conditions on ship performance and previous work on propeller Coatings for merchant ships was conducted. Theoretical calculations on the possible gains were then explored for a merchant ship propeller type using a propeller lifting surface analysis program. These showed that the significant losses in efficiency caused by blade roughening can be avoided by the application of a Foul Release Coating with a surface finish equivalent to a new or well polished propeller.

  • low energy surfaces on high speed craft
    2nd International Euro Conference on High-Performance Marine Vehicles(HIPER '01), 2001
    Co-Authors: Maxim Candries, Mehmet Atlar, Colin Anderson
    Abstract:

    Foul Release systems offer a low-energy surface that prevents firm adhesion of Fouling organisms on underwater hulls. Above a critical threshold speed, hydrodynamic forces against the ship hull wash off any attached organisms. Particularly for high-speed, high-activity vessels, Foul Release systems offer an environmentally attractive, long-term, cost effective alternative to toxic biocidal antiFoulings. A research project has been set up to investigate whether the specific surface properties of Foul Release systems have a beneficial effect on its drag. Flat plate towing tank experiments have confirmed that the total resistance of a 6.3m plate coated with a Foul Release Coating system was 1.4% lower than when it was coated with a Tributyltin-free Self-Polishing Co-polymer (SPC). Surface analysis carried out with an optical measurement system has indicated that the mean absolute slope and the correlation length of the Foul Release sytem can differ from those of other Coatings by an order of magnitude. Part of ongoing research has been trying to correlate the roughness parameters with the observed drag reduction.

David R. Edds - One of the best experts on this subject based on the ideXlab platform.

  • Zebra Mussel Colonization of Construction Materials, and Effectiveness of a Foul Release Coating
    Transactions of the Kansas Academy of Science, 2014
    Co-Authors: Benjamin R. Smith, David R. Edds
    Abstract:

    We compared zebra mussel (Dreissena polymorpha) colonization of six commonly used construction materials (PVC, concrete, steel, galvanized steel, pressure-treated wood, aluminum) plus a native unionid mussel shell, and examined effectiveness of the Intersleek® 970 Fluoropolymer Foul Release Coating system applied to the six materials in limiting colonization by this aquatic nuisance species. Coated and uncoated substrates were deployed in Marion Reservoir, Kansas, from April 2011 to August 2012. Density of colonizing zebra mussels was evaluated in July and November 2011, and durability of the substrates was monitored until August 2012. Mussels differentially utilized materials, with eight of the 13 substrates being colonized. PVC was colonized more heavily than galvanized steel and all surfaces coated with Foul Release fluoropolymer, which were largely mussel-free. Coating eventually showed signs of pitting, but did not delaminate from the materials to which it was applied. These results suggest that use of particular materials and Coatings may aid management of some zebra mussel infestations.