icoe 2012 & float inc offshore ocean energy system presentation
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02Oct2012 www.floatinc.org 3
Float Inc. PSP Primary Design as a
Deep Ocean Offshore Floating Platform
Defense Advanced Research Project Agency (DARPA)
Confirmation of PSP technology (1995 – 1996)
Office of Naval Research (ONR)
Validation of PSP technology characteristics (1997 – 1998)
Float Incorporated Pneumatically Stabilized Platform (PSP) technology chosen for inclusion in a national R&D program U.S.A. - Department of Defense “Mobile Offshore Base Program”
02Oct2012 www.floatinc.org 4
Float Inc. PSP Technology
Characteristics Validated & Confirmed
Stable with Variable Deck Loads Capabilities
At-sea motion stability and structural loads mitigation by decoupling the “hull” from ocean wave pressures through the use of air buoyancy, which is both compressible and mobile within the PSP platform cylinders.
Wave attenuation
Tank testing incident wave Heights up to 20meters
Range of transmitted wave reduction = 50% to 94%
Modular
PSP cylinders assembled into modules (25 cylinders)
Modules assembled into PSP platform configuration
Modules assembly can be accomplished in Sea State 3 levels
02Oct2012 www.floatinc.org 5
Float Inc. PSP Technology
Characteristics Validated & Confirmed
Monolithic platform Modular construction and assembly
Extensible PSP modular construction permits extension of existing PSP
without interruption of existing activities onboard
Mobile PSP can be repositioned to a different area/zone as the PSP is
simply retained in position by the appropriate anchorage system
Long life PSP is constructed of post constraint, reinforced concrete
having a useful life exceeding 50-years.
No dry-docking required, and requires no significant maintenance of the basic hull.
02Oct2012 www.floatinc.org 6
Float Inc. Pneumatically Stabilized Platform (PSP) Wave – Incident / Wave - Transmitted = Attenuation of Wave Energy Model
L
a i
a t
h
B
L
Under Platform field
Incident Transmitted
Energy Flows
02Oct2012 www.floatinc.org 7
Float Inc. Pneumatically Stabilized Platform (PSP)
ONR Results of tank tests :
Validation of technology & performance characteristics of the
PSP 1997/1998 –
Office of Naval Research (ONR)
Comprehensive tank tests completed in: •Offshore Model Basin, Escondido, California, USA (www.modelbasin.com)
•J.K.K. Look Laboratory, Ocean Engineering Department, University of Hawaii,
Hawaii
Model Tank Test Results concerning wave attenuation revealed:
Wave Attenuation
Wave Period Wave Height (% and meters)
7 seconds 0m90 94% & 0m05
9 seconds 2m50 72% & 0m70
12 seconds 5m50 50% & 2m75
16 seconds 10m00 63% & 3m70
20 seconds 15m50 54% & 7m13
02Oct2012 www.floatinc.org 8
Some pics/ideas for
Oceans Offshore Energy System
Offshore Ocean Energy System proposed and presented by
02Oct2012 www.floatinc.org 9
Float Inc Offshore Ocean Energy System (OOES)
accommodates onboard the
Pneumatically Stabilized Platform (PSP)
Offshore Wind Energy
Offshore Wave Energy
Offshore Ocean Current Energy
Potential Energy Storage (PES)
Ancillary Applications: Aquaculture & related
activities
Desalination plant
LNG Liquefaction & Re-gasification Facilities
Offshore Ro-Ro and/or Container Port
NB: Not an exhaustive list
All on the same Platform - PSP
02Oct2012 www.floatinc.org 10
Offshore Wind Turbine Farm
onboard the Float Inc
Offshore Ocean Energy System (OOES)
Structural stability that allows any standard Offshore Wind Turbine to be easily deployed.
Wind Turbine foundations same as onshore
Access, maintenance and operation similar to onshore
Transformer station in-the-dry
Storage of spare and repair parts
No new specialized vessels needed to transport equipment or personnel directly from ports to platform
02Oct2012 www.floatinc.org 11
Example of an Offshore Zone
Preliminary Calculations:
Galicia, Spain source 40+ year Wave Data History
Location specific:
Northwest Galicia, Spain
WANA Buoy N° 2 (1048076 @ 44.00°N 8.00°W)
Distance from coastline = 15nms / 28kms / 17miles
Buoy anchor depth = 205m
OOES configuration:
12each @ 3MW WT 36MW
NB: Overall output simulated as maximum
Rho-Cee WEC rated 60kW/m x 1200m 72MW
Total Power Rating 108MW
PES @ 12MWh (cold)
02Oct2012 www.floatinc.org 12
Example of an Offshore Zone
Preliminary Calculations:
Galicia, Spain source 40+ year Wave Data History
NW Spain Wave Energy Potential
405
428
416
405
249
272
203
214
208
203
125
136
6,753
6,639
6,562
6,488
1
2
3
4
5
6
WA
NA
Bu
oy N
°
MWh/m
Annual Wave Power (MWh/m) Rho-Cee WEC Capture (MWh/m) Hours/year
02Oct2012 www.floatinc.org 13
Waves, Winds ± 60°
Calm
zone
Calm
zone
Wind & Wave Together - Extending the Wind Turbine farm
Complimentary on the Float Inc
OFFSHORE OCEAN ENERGY SYSTEM (OOES)
PSP span @ 1040m Rho-Cee WEC width @ 1200m
Wind Turbines spacing @ 200m (extendable-leeward) with rotor diameter @ 90m
Wind Turbine rating @ 3MW Rho-Cee WEC rating @ 60kW/m
200m dock - struts 200m x 5m concrete culvert pipe, w/rails
Total Power Rating: 108MW PES Storage: ~12MW-Hr, cold
Calm
zone
02Oct2012 www.floatinc.org 14
Estimated Annual Results for the
Galicia, Spain location
12 each 3MW wind turbines 101,000MWh
Rho-Cee WEC 1,200m width 256,000MWh
Total Electricity Generated 357,000MWh
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