Embed Size (px)
Citation preview
Ocean Thermal Energy Conversion (OTEC)
Dennis J. CooperLockheed Martin
Ocean Energy Program Manager
703 367-2538
Efficiency Business
Utility Technical &
Engineering Services
IT & Business Services
Smart Grid
Hanford Site M&O
Sandia National Labs
Solar (CSP & PV)
Ocean Thermal
Wave
Biomass/Biofuels
Fuel Cells
Nuclear Command &
Control Systems
Microgrids
Storage & Advanced
Material Technologies
Aircraft Energy
Technology
Military Fuel
Efficiency
Advanced Biofuels
Skunk Works®
Advanced R&D
Efficiency & Security Alternative Power Generation Monitoring & Mitigation
Space Based Climate
Monitoring Exploration
Terrestrial-Based
Climate Monitoring
Space Solar Power
Exploration
Advanced Concepts
R&D
LM Energy Business Portfolio
Research & Development
LM OTEC Team
Strong Team with International Recognized Expertise
Commercialization Roadmap
Risk Reduction Utility Scale Commercial /
DOD Plants
Performance Validation
Environmental Validation
Cost / Schedule Validation
Operations & Maintenance
Commercial Market
Pilot
Plant
Pilot Plant
Technologies
Cold Water Pipe
Fabrication
Cold Water Pipe /
Platform Interface
Heat Exchanger
Performance &
Design
Funding
Phase
Government
(Not Funded Yet)Public / Private Financing (Power Purchase Agreements)
Industry Investments,
Government (CRAD,
Grants, SBIRs, …)
Pilot Plant Support Needed for Commercialization
+
• Larger Scale Plants (>100MW)
• Private Financing
• Power Purchase Agreement
DoD Market
• Smaller Scale Plants (~10MW)
• Gov’t / Private Partnerships
Potential
Timeline 2010-2012 2014-2015 2018-2020
OTEC Vision
10MW OTEC
PLANTS
• DOD Bases
• US Territories
• Other
Federal Seed Funding
For Pilot Plant
Electric Utility
MarketTransportation Fuels
Market
100MW OTEC
COMMERCIAL
PLANTS
• Hawaii
• Florida
• Puerto Rico
• Gulf States
400MW OTEC
OPEN OCEAN
ENERGY
PRODUCTION
PLANTS
• All US States
Pilot
Plant
OTEC is Poised to be a Global Energy Resource
OTEC Risk Reduction & Design Activities
Initial Focus – Hawaii
• Site of Prior US OTEC Efforts
– Favorable Ocean Thermal Resources
• State Realities
– 92% reliant on fossil fuels
– Resistance to new fossil fuel plants
– Increasing Energy Needs
– Hawaii Clean Energy Initiative - 70% by 2030
• Large DoD Presence
– SECNAV Energy Policy - 50% by 2020
• A New Industry with New Jobs
• Strong Collaboration with HECO/NAVYPearl Harbor
Kaneohe
MCAS
Schofield Barracks
Wheeler
Hickam AFB
Tripler
Military
Hospital
Fort Shafter
Major DoD Bases on Oahu
Lualualei
Hawaii – Ideal Location for OTEC Development
OTEC
Pilot Plant
NAVFAC Hawaii OTEC Pilot Plant
• Hawaii Location-Oahu
• Barbers Point Vicinity
• 5 MW upgradeable to 10 MW
• 10 MW cable to Pearl Harbor
• Substation Charley
• Full mooring
• Semisubmersible platform
• Service design life = 20 years
• Survivability design criteria = 100 yr Storm
• Certifications – ABS/DNV
Navy / NAVFAC Top Level Requirements:
NAVFAC Pilot Plant Location
NAVFAC OTEC Contract
System Design
Semi-submersible
5 MW Power Modules
Critical Component Development:
CWP / Gripper Interface
Pier side Test
Offshore Platform Advancements
OTEC operating depths are well within the capabilities and experience
of today’s offshore industry
• Proven platforms and installation methods (anchors, moorings, risers)
• Proven dynamic and static power cables at OTEC compatible ratings (depths, voltages)
• Validated complex modeling and prediction of coupled dynamic responses
• Advanced Model Basin capability for early concept validation
OTEC
Operating
Depths
The OTEC Cold Water Pipe (CWP)
The
CWP
for a
100MW
OTEC
plant is
1000m
long….. ........by 10m
in diameterCWP must survive:
•Fatigue strains from
platform motions
•Internal suction pressure
•Seawater corrosion
•Water pressures to 1500
psi at depth
Cold Water PipeFunction: Bring up cold
water for OTEC cycle
• 4m diameter for the
10MW Pilot Plant
• 10m diameter for
100MW commercial plant
• 1000m long
Empire
State
Bldg is
450m to
top of
antenna
Core:
• Pre-pultruded hollow “planks” assembled into core rings
Face sheets:
•Longitudinally
continuous fabric
strips, applied over
assembled core rings
13
Basic Construction: Sandwich wall with hollow vented core
Composite CWP Architecture
Distributed overlap splices
between adjacent fabric strips
develop full properties in
circumferential direction
Materials:
• Low-cost glass fibers with excellent fatigue resistance
• Vinyl ester resin matrix with very little water absorption
Integral one-piece CWP with no joints in the main
load-bearing face sheets maximizes durability and reliability
14
Deployment StrategyManufacture the CWP directly off the OTEC platform
US Patent application: # US2009/0309271
Overall
process:
Stepwise
infusion
molding
Fabric on
dispensing rollers
(continuous with fabric
in molding region)
Molding region
Gripper/translator
Cured CWP region
Fabrication off of the platform eliminates major CWP deployment risk,
enables integral fabrication of huge pipe, reduces transportation costs
Core
assembly
region
Vacuum
chamber
and fabric
dispensers
region
Molding
region
Cured CWP
Apparatus Hardware
Upper
support
structure Core
assembly
Fabric
dispensing
(inner and
outer)
Molding
region
Overall apparatus design
4 Meter CWP Fabrication Apparatus
Shear Key &
Pipe Core Assembly
Fabric Dispensing
& Guidance SystemPipe Molding Region
Component Validation Efforts to Complete in Fall 2010
DOE CWP Grant Progress
Thermal Duty Capacity: 10-50 kW
Fluid Flow: 1-6 liters/sec
Temperatures: 5-8C and 24-30C
Working Fluid: R410A
Thermal Duty Capacity : 1-4 MW
Fluid Flow :100-500 liters/sec
900m Deep and Surface Seawater
Working Fluid: Ammonia
Heat Exchanger Test Progress / Capabilities
Corrosion Tests With Various
Alloys Ongoing At NELHA
Data Generated Over Multiple
Time Phases
OTEC is a Large, Clean, Renewable, Baseload Energy
Resource
Strong Industry team making excellent progress on
Risk Reduction Activities
Need Government supported Pilot Plant for industry
transition to privately competed utility scale OTEC
plants
Green Industry and New Jobs
OTEC Summary
