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2018. 11. 28
Hyeon-Ju Kim [ [email protected] ]Offshore Plant and Marine Renewable Energy Research Division
Korea Research Institute of Ships and Ocean Engineering (KRISO)
Korea Institute of Ocean Science and Technology (KIOST)
KRISO’s Plan for Ocean Energy Utilization to
Achieve SDGs in Pacific/Asian Coastal Areas
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East Asian Seas (EAS) Congress 2018
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Food, Energy and Water nexuswith regard to climate change
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R&D and Activity areas of KRISO
[ All activity areas of KRISO is onto Blue Island ]
- Food : Aquaculture and hydroponic systems
- Energy : OTEC and SWAC systems
- Water : Desalination and Mineral balance system
- Base structure : VLFS and ICT management etc. 3
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Ocean Energy RD&D in KRISO
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WEC RD&D in KRISO before 2010
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WEC RD&D in KRISO after 2010
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OTEC RD&D in KRISO after 2010
60RT(210kW) Tandem Heat pump, ‘10 500RT(1.75MW) Turbo Heat pump, ‘13
20kW R32-OTEC plant(20oCdT), ‘13 200kW R245fa-HOTEC plant (70oCdT),’14
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Ocean Energy and Seawater Utilization for Food
Food OTEC2F
[ OTEC Mock-up ]
[ Seawater and heat supply for agriculture ]
[ Seawater and heat supply for aquaculture ]
Hydroponics and aquaponics
Seaweed culture in open sea or tank
Deep seawater, rich with its nutrient salts, provides most ideal condition for
seaweeds. Seaweeds are used as food, for cosmetic products, and can be
also turned into bioenergy. Also, they absorb carbon dioxide through
photosynthesis, which helps reducing global warming.
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Water OTEC2W
Ocean Energy and Seawater Utilization for Water
담수화
개념
Desalination is the method of desalting salt
from seawater to produce drinkable fresh
water
- Membrane separation method : RO, NF, …
- Phase change method : MSF, MED, FD
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EnergyOTEC2E
Ocean Energy and Seawater Utilization for Energy
⚫ Cooling source can be acquired from
1) direct heat exchanger by cold deep ocean water
2) cold heat of evaporator of heat pump
by use of seawater as a condensing heat source
1)HEX or 2)HP
(Water heating)
HEX & HP (SUPRC, KRISO) HEX (Resort, Bora Bora) HP (Momochi district, Japan)
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⚫ Electric power can be generated by rotating a
turbine using gaseous flow of evaporated
working fluid. Warm surface and cold deep
seawaters are used for heat source and sink,
respectively.
100kW-OTEC(USA‘15)50kW-OTEC(Japan‘13)15kW-OTEC(French‘11) 20kW-OTEC(Korea‘13)
Pump
Turbine
Evaporator
Condenser4
1 2
3
Surface sea water
Deep seawater
2
34
1
S
T
Qe
Qc
WT
WP
Working fluid :
R32 refrigerant
EnergyOTEC2E
Ocean Energy and Seawater Utilization for Energy
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20kW OTEC pilot plant
Condenser
Evaporator
Turbine-generator
ReceiverCirculation pump
Separator
Verification of pilot plant for 1MW OTEC Plant
20kW OTEC pilot plant was assembled in 2013 at SEPRC12
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Experiment of 20kW OTEC pilot plant
https://www.facebook.com/pg/OTECUT/videos/?ref=page_internal13
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Manufacture of key parts of 1MW OTEC plant for performance test in Korean waters
Evaporator(‘18)
Turbine generator(‘16)
Condenser(‘17)
Key parts are under manufacturing to complete in 2019
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Assembling
Verification experiment
1st Demonstration plan of 1MW OTEC plant for performance test before transporting to install
(2019)
Performance test in situ will be done in late summer in 2019< 7th International OTEC Symposium will be held in Busan > 15
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Construction of cold and warm water pipes for long term operation (2020)
On-land OTEC
2016~2021/MOFOffshore OTEC
2021~2025
SWAC
Agri/aquaculture
Desalination
[Hybrid method] Bottom pulling + Floatation + Laying methods 16
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Power supply and cascade utilizationto support achievement of SDGs
On-land OTEC,
WEC, TCT etc.Offshore OTEC,
WEC etc.
SWAC
Agri/aquaculture
Desalination
[F]Hydroponics & aquaculture [E]OTEC&SWAC [W]Desalination
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Framework of Ocean Energy & Seawater Utilization for SDGs achievement
On-land OTEC
& WEC
Offshore
OTEC, WEC,
Hybrid
SWAC
Agriculture,
Aquacultur
e
Desalination
1
2
3
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SustainableSeawaterUtilizationAcademy
Capacity building(‘16) and Activity(‘18) in Kiribati
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2
3
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Ocean Energy & Seawater Utilization to Achieve SDGs in Pacific/Asian Coastal Areas
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Thanks a lot for kind attention!
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