1 / 25

Composites use in the marine environment

Composites use in the marine environment. John Summerscales. Marine renewable energy ( MRE ). Offshore wind …………… Wave energy Tidal stream energy Ocean Thermal Energy Conversion (OTEC) Salinity gradient Algal biomass. Marine renewable energy ( MRE ). Wave energy

paul2
Download Presentation

Composites use in the marine environment

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. Composites usein the marine environment John Summerscales

  2. Marine renewable energy (MRE) • Offshore wind …………… • Wave energy • Tidal stream energy • Ocean Thermal Energy Conversion (OTEC) • Salinity gradient • Algal biomass

  3. Marine renewable energy (MRE) • Wave energy EMEC identify 77 developers of potential devices six generic headings, • Attenuators ……………………………………..Pelamis: • point absorbers • oscillating wave surge converters • oscillating water columns ……………………. Limpet: • overtopping devices ……………………….. Wave Dragon • submerged pressure differential devices classification does not cover all options 

  4. Marine renewable energy • tidal stream energy • horizontal axis rotor turbines • vertical axis rotor turbines • oscillating hydrofoils • images are • Open Hydro HART • Neptune Proteus VART • Stingray OH

  5. Offshore oil structures Offshore oil exploration and exploitation grids and gratingshandrailsladders caissons pipes

  6. Submarines and submersibles • American nuclear submarine SSN 711 "San Francisco“hit an uncharted seamount on 7 January 2005. • LR5 submersible used in the Kursk submarine rescue attempt has an advanced composite pressure hull

  7. OceanGate Cyclops (2013) • five-person next-generation manned submersible • 178 mm thick carbon fiber hull • manufactured by automated fiber placement (AFP) • depths to 3000 metres (9800 feet) • 180° borosilicate glass dome.

  8. Lifeboats

  9. Lifeboats RNLI Hovercraft:aluminium hull with FRC topsides and fan ducts Balmoral liferaft: • self-righting, totally-enclosed, motor-propelled survival craft for the offshore oil industry • craft range in size (6.2-8.75 m ) and can carry 21-66 people respectively • glass reinforced plastic using fire-retardant resins • certification requires withstand 30 m high kerosene flames and temperatures of 1150°C • throughout the fire test, the temperature inside the craft never exceeded 27°C.

  10. Mine counter-measures vessels MCMV: hunter/sweeper • HMS Wilton 1 1973 46 m 450 tonnes • Royal Navy Hunt Class 13 1980 60 m 725 tonnes • Sandown class SRMH 12 1989 50 m 450 tonnes

  11. Swedish Navy • Landsort MCMV 47.5 m 360 tons GRP sandwich • Visby stealth corvette 73 m 600 tons sandwich construction CFRP quoted speed of >35 knots

  12. USS Stiletto M Ship Company (San Diego CA) M80 Stiletto 24.4 m by 12.1m wide • unique "double-M"-shaped multi-hull lightweight littoral patrol boat • captures air and converts wave energy into lift • cruise at >50 knots (92 km/h) with improved comfort/smaller wake • vacuum-bagged carbon sandwich for the hull major structures • resin film infusion (RFI) for bulkheads and longitudinal girders • crew of three and transports 12 Sea, Air and Land (SEAL) commandos • also carries an 11m/36 ft rigid-hull inflatable boatand has capacity for smaller-sized unmanned aerial vehicles (UAVs).

  13. Sterngear • Propellers • Tim Searle UG and PhD projects • GFRP props for UoP work boats • RV Triton • 2.9 metre diameter composite propeller • world's largest composite propeller:five composite blades bolted and bondedto a nickel aluminium bronze (NAB) hub • Rudders • UD DDG-51-class destroyer rudderstwist to different angle of attack at different water depths

  14. Powerboats • Very Slender Vessels (VSV) ~30 ft– covert operations • Cable & Wireless Adventure 41 tonnes, 35 x 14 m • composite glass reinforced polymer/foam sandwich • record breaking circumnavigation:24500 nautical miles in 74 days 20 hours62 days at sea: average speed 16.5 knots average fuel consumption ~ 1 mpg (4.5 litres/nm).

  15. Powerboats • Earthrace trimaran • 24m wavepiercer trimaran by Craig Loomes Design Group (CLDG) • “advanced composites including carbon fibre and aramid reinforcements, toughened epoxy resins and lightweight foam cores” • Germanischer Lloyd/CLDG animationvessel operating at 28 knots in short steep head seaof 2.8m height and 23m wavelength - colours indicate wave peaks/troughs • 24000 mile circumnavigation in 60 days 23 hours and 49 minutesreduced record by almost 14 days (close to a 20% reduction in the time).

  16. Yachts • Maltese Falcon: 1200 tonnes - 87.5 m long overall • steel/aluminium hull • 3 free-standing carbon fibre composites masts • each 57 m high and weighs 13 tons • embedded optical fibre sensorsreport strain and stress data to the bridge • six curved carbon-fibre yards to each mast

  17. Yachts • Mirabella V 740 tonnes 75.2 m long, 90 m mast • largest single mast (sloop rigged) yacht • built by VT, launched in November 2004 • carbon deck and stiffeners • aramid outside hull skin • E-glass composites over PVC or polyolefin foam cores

  18. Yachts • B&Q Castorama trimaran • 8.3 tonnes - 23 m long - 30.6 m mast • "constructed entirely .. of carbon fibre” • designed by Nigel Irens and Benoit Cabaret • Ellen MacArthur solo non-stop circumnavigation: 71 days, 14 hours, 18 minutes • previous record, Francis Joyon 72d 22h 54m • Cable & Wireless Adventurer 74d 20h & 14 crew!

  19. Yacht:L’Hydroptère • Alain Thébault built 18.3 m 6.5 tonnes vessel • "carbon fibre composite and titanium structures” • September 2009 in a 28-knot westerly wind • 51.36 knots (59.1 mph) over a distance of 500 metres • 48.72 knots (56 mph) over one nautical mile • subject to ratification by theWorld Sailing Speed Record Council (WSSRC).

  20. Yachts • "Team Philips“ 37 m by 21 m and 41 m high • preimpregated CFRP fabrics and vacuum-bagging • wave piercing bow technology • designed for The Race:no-holds barred, no limits, round the world challenge. • first sea-trials: portion of the portside pontoon snapped off. • repaired, boat relaunched, problem with rotating wing masts • December 2000 abandoned:70 knot winds, 10m waves and worsening weather conditions

  21. Human-powered craft • Pink Lady Atlantic row • carbon fibre/foam core sandwich built in four separate components(10 meter hull, forward cabin roof, the aft cabin roof and the rowing bay) • days from breaking a world record for thefastest North Atlantic row from Canada stopped by a freak wave • Knoydart 14' Prospector • standard fibreglass lay-up (24kg) is ideal for entry level paddlers • Ultralight (18kg) lightest solo canoe available for wilderness tripping

  22. Sails FiberPath laminate sail • fibres aligned with the primary loads in the sail • multiple fibre patterns to address secondary loads • lighter in weight than a tri-radial sail for GP applications.

  23. End-of-life (EoL) vessel • waste reduction > reuse > recovery > disposal • reuse: vessel – components – materials • recover: fibres – pyrolysis etc for feedstock • disposal: scuttle – incinerate – compost if bio-based • landfill as a last resort • beware: • toxic compounds in • bilges, engines, lubricants, etc and • anti-fouling coatings

  24. End-of-life (EoL) vessel • Annette Roux (2007)President of FIN (French boatbuilding federation) andPresident of Groupe Beneteau, said:industry has worked hard on techniques to destroy old fibreglass hulls, instead of owners abandoning them, “but so far we are having difficulty finding any: they are in good condition and sailors continue to use them”

  25. Acknowledgements • sources for images are given in: • http://www.tech.plym.ac.uk/sme/composites/marine.htm • Miggy Singh, John Summerscales and Ken WittamoreDisposal of composite boats and other marine compositesChapter 18 (pages 495-519) in Vanessa Goodship (editor):"Management, recycling and reuse of waste composites",Woodhead Publishing, Cambridge, 2010. • Juliette Jackson and John SummerscalesMarine Renewable Energy (MRE):a review of device technologies draft manuscript.

More Related