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Tower structure with horizontal extent

This plan compares different concepts for a tower structure with a horizontal extent and provides a cost comparison. It also proposes adaptations for an 8-meter version and includes a working plan. The model does not include certain components and data should be refined for an accurate cost evaluation.

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Tower structure with horizontal extent

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  1. Tower structure with horizontal extent mechanical structure and cost model

  2. Plan • Compared concept • Cost comparison • 8 meters adaptation • Working plan

  3. Compared concept (1/2) • Anemone concept 2,5m

  4. Compared concept (2/2) • NEMO concept

  5. Cost comparison • Model only for copper data transmission in each tower (up from now) • Model doesn’t include multi PM (up from now) • Model doesn’t include JB and main cable • Cost data should be refined for absolute cost evaluation

  6. Line description: Intra floor: Inter floor: Line ending: JB connection Cost data: Floor: Floor link: Data transmission: Line ending: JB connection: Cost comparison

  7. Integration time: Floor : 9h Line ending:12h Off line integration Sea operation data Line deployment: ROV installation: ……… similar Cost comparison

  8. ANEMONE cost/line Line 420k€ Floor: 19700€ Cabling system 31800€ Line ending 17150€ JB connection 56000€ Integration 50k€ Line 156/line PM 192h/line Electronic 136h/line Connector 204h/line Sea cost: 75k€/line Line deployment: 35000€/line ROV : 40000€/line NEMO cost/line Line 460k€ Floor: 22200€ Cabling system 39000€ Line ending 17150€ JB connection 56000€ Integration: Line PM Electronic Connector Sea cost: 100k€/line Line deployment: 60000€/line ROV 40000€/line Cost comparison 75€/h 550k€/line 600k€/line

  9. Cost comparison • Cost are similar ( in the model error) • A more precise model needed on sea operation and floor cost • Further improvement: • Fiber optic model • Multi PM model • More precise data transmission cost model • Industrial cost and integration time • …

  10. Concepts adapted to 8 m • Requirements: • 6 spheres (17”) per floor ; • Spheres grouped by 2; • 8 meters between external sphere groups in acquisition mode; • 30 meters between floor ; • 16 floors: • With relative positioning if bar floor; • Without relative positioning plan floor ; • Compact line unfolded from sea bed. Furling / Unfurling structure

  11. Concepts adapted to 8 m • Bar concept with NEMO cabling system Hydrodynamic stability to check

  12. Plan concept Extendable arm to develop!! Concepts adapted to 8 m 8m Truck transportable! 2 Sphere(s) or capsule Arm deployment

  13. Concepts adapted to 8 m • Under the previous requirements, especially the floor size, the smarter solution seems to be a “bar” floor supporting 2 couples of spheres at the ends and a couple of spheres in the middle. • Relative floor positioning and cables/ropes management could be similar than NEMO

  14. Development plan • Concept validation  june 2009 • Hydrodynamic simulation • Sea operation cost • NEMO phase 2 validation • Capsule studies • TDR definition • 8m concept test ?? • Industrial studies  ??

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