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OTEC:

Ocean ThermalEnergy Conversion

By: Jackie Rowley

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FUNDAMENTALS

75% of the Earth Covered bywater

Ocean water stores much moreheat than the atmosphere

Thermo-haline circulationcreates temperature differencesthroughout Earths oceans

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http://www.google.com/imgres?imgurl=http://www.liv.ac.uk/physocean/schematics/thc.gif&imgrefurl=http://www.liv.ac.uk/physocean/research.html&usg=__g

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http://www.google.com/imgres?imgurl=http://www.uwsp.edu/geo/faculty/lemke/geol370/images/16_ocean_conveyor_nws.jpg&imgrefurl=http://www.uwsp.edu/geo/faculty/lemke/geol370/lecture_notes/16_causes_of_climatic_change.html&usg=__zhR99CRHcEWai9Dvsa6q2OptSWI=&h=329&w=633&sz=68&hl=en&start=38&zoom=1&tbnid=Zg3TkHVhO5r6ZM:&tbnh=87&tbnw=167&ei=WYFkTZb0FobbgQeC3PmzBw&prev=/images%3Fq%3Dthermo%2Bhaline%2Bcirc ulation%26hl%3Den%26safe%3Doff%26biw%3D1280%26bih%3D581%26gbv%3D2%26tbs%3Disch:10%2C9600%2C960&itbs=1&iact=hc&vpx=929&vpy=312&dur=309&hovh=162&hovw=312&tx=265&ty=156&oei=dYBkTbu5HcbftgfxuoCaBg&page=3&ndsp=20&ved=1t:429,r:19,s:38&biw=1280&bih=581

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First OTEC system

Idea thought of by JacquesDArsonval, in 1881.

French physician thatcontributed greatly toelectrophysiology.

His student, Georges Claude,created the first OTECsystem in Cuba in 1930.

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OTEC System

Hot surface water, boils lowboiling point liquid

Boiling liquid turns turbinewhich generates electricity

Electricity carried to land

through underwater cableDeep cold water used to

cool and condense liquid

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1 2000. Snowden, Paul, Kazuhiro Kitazawa, Masayuki Mac Takahashi . Deep Ocean

Water as Our Next Natural Resource. Chapter 3: OTEC Is Not A Dream. Tokyo.http://www.terrapub.co.jp/e-library/dow/index.html

Closed System OTEC

-Use of low boilingpoint fluid

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Open System OTEC

Use of Water as fluid

http://www.google.com/imgres?imgurl=http://ffden-2.phys.uaf.edu/212_fall2003.web.dir/Yevette_Lancaster/open%2520otec.jpg&imgrefurl=http://ffden-

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QuickTime and a

decompressorare needed to see this picture.

http://www.google.com/imgres?imgurl=http://www.caribotec.com/OTEC_files/OTECuses.gif&imgrefurl=http://www.caribotec.com/OTEC2.htm&usg=__yaFbFBfp9q37MiJS6OuyAi1JCsg=&

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Benefits of Open System OTEC if

perfected

-Desalinated water

-Mariculture

-Air conditioning

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http://planetearthandhumanity.blogspot.com/2010/08/otec.html

http://www.carbonzeroplanet.org/renewables/wave-

tidal-oceanthermal.php

OTEC Designs

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PROSReduces Carbon

footprint by

providing clean costeffective energy

Produces desalinatedwater for industrial,

agricultural andresidential uses

CONSPromotes Global

competitiveness and

International Trade

Enhances energy

independence

Has potential tomitigate green house

gas emissions from

burning fossil fuels