slide1
Download
Skip this Video
Download Presentation
Tidal Energy: Worldwide distribution Efficient technology Multiple benefits

Loading in 2 Seconds...

play fullscreen
1 / 31

Tidal Energy: Worldwide distribution Efficient technology Multiple benefits - PowerPoint PPT Presentation


  • 63 Views
  • Uploaded on

Tidal Energy: Worldwide distribution Efficient technology Multiple benefits. The Current Situation. Tidal Energy is sustainable, clean, reliable, widely distributed, and can offer significant benefits to many marine nations.

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about ' Tidal Energy: Worldwide distribution Efficient technology Multiple benefits' - teegan-macias


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
slide1

Tidal Energy:

  • Worldwide distribution
  • Efficient technology
  • Multiple benefits
slide2

The Current Situation

Tidal Energy is sustainable, clean, reliable, widely distributed, and can offer significant benefits to many marine nations.

Tidal Energy can be captured in an efficient and cost-effective way.

Tidal Energy is not yet recognized by the United Nations as an energy resource that should receive support and funding for its development.

slide3

Tidal Energy is a clean, renewable source of energy--such as solar, wind, biofuels, and low-head hydro-- and deserves official international support and funding for its development.

slide5

World Map of the Distribution of Tidal Energy

Red areas show most intense tidal energy

slide6

Developing Nations that could receive significant benefits from TidalEnergy

________________________________________

Indian Ocean: Comoros, Madagascar, Maldives, Seychelles.

Asia: China, India, Indonesia, Korea, Philippines, Vietnam.

Pacific Ocean: Fiji, Kiribati, Micronesia, Palau, Papua New Guinea, Samoa, Solomon Islands, Timor, Tuvalu, Vanuatu.

Central and South America: Argentina, Brazil, Ecuador, Guyana, Panama, Surinam.

Atlantic Ocean: Cape Verde.

All coastal nations with tidal passes between coral reefs or offshore islands.

slide7

Significant benefits from using Tidal Energy include:

  • Electrification of isolated communities
  • Generation for the grid
  • Regrowth of coral reefs using mineral accretion technology
  • Substitution of imported petroleum used to generate electricity
slide9

Tidal Energy can be captured

  • efficiently and
  • inexpensively
  • using the helical
  • turbine

Prof. Alexander Gorlov of Northeastern University with the helical turbine he invented and perfected

slide11

Features of the Helical Turbine:

Basic Concept

  • designed for hydroelectric applications in free-flowing water
  • operates in ocean, tidal, and river currents
  • does not require expensive dams that can harm the environment
slide12

Features of the Helical Turbine

Operation

  • self-starting with flow as low as 0.6 m/s
  • smooth-running
  • rotates in same direction regardless of the direction of flow, making it ideal for tidal applications
slide14

Features of the Helical Turbine

Power increases 8 times when velocity doubles

I Knot =

1.69 ft/sec

I M/sec =

3.28 ft/sec

Source:GCK Technology

features of the helical turbine installation cost dollars kw
Features of the Helical Turbine Installation Cost: dollars/kw

Red: high estimate

Blue: low estimate

Source: GCK Technology, Inc.

slide17

Multiple Benefits from Tidal Energy.

_______________________________________________________________________________________________________

Practical Examples:

  • Electrification of isolated communities
  • Power for the grid
  • Regrowth of coral reefs using mineral accretion technology
slide18

1) Electrification of Isolated Communities:

The Tide-Energy project near the mouth of the Amazon

Rural residents with a 6-blade helical turbine

slide19

The Tide-Energy project near themouth of the Amazon:

a simple generating package

(c) Automotive alternator

(b) Pulley and belt

(a) 6-blade helical turbine

slide20

The Tide-Energy project near the mouth of the Amazon: simple, accessible, affordable technology

Simple:

  • The helical turbine rotates on a shaft with a pulley that runs an alternator by means of a belt.
  • The alternator charges batteries for household use, as is usual with other intermittent sources— solar and wind—when used off the grid.
  • Accessible:
  • About 90% of a tide-powered station can be built using locally-available labor, materials, and equipment.
  • Only the technically-refined helical turbine blades are outside components.
slide21

The Tide-Energy project near the mouth of the Amazon: simple, accessible, affordable technology

Affordable.

Under local natural and economic conditions:

  • The investment in installation and equipment of a tide-energy station is only 50% of the comparable solar option.
  • That investment is similar to the cost of a small, diesel-powered boat, which thousands of people in the region already own.
  • The operating costs of a tide-energy station are less than 60% of those of the comparable diesel option.
slide22

2) Power for the Grid

The Uldolmok Strait Pilot Project in Korea

1m x 2.5m GHT from GCK Technology, Inc.

slide23

The UldolmokChannel Pilot Project in Korea

Results and perspectives:

Testing of the Gorlov Helical Turbine manufactured by GCK Technology, Inc. was performed by the Korea Ocean Research & Development Institute (KORDI).

Successful tests were carried out In 2002 using a 1m diameter Gorlov Helical Turbine which produced about 10kW in a 4 knot flow.

As a result of these trials, a larger GHT (2.2m diameter, 2.5m length) was designed and manufactured by GCK and successfully tested by KORDI in 2004

The GHT has also been successfully tested on floating platforms off of Long Island, NY and in the Merrimack River in Massachusetts.

slide24

3) Generation of hydrogen for fuel cells from the electrolysis of water from tidal currents that do

not need to be in close proximity to end-users.

Detail of the Farm

4

3

Projected Power Farm

1

2

The Gorlov Helical Turbine modules can be assembled in large-scale power farms, as depicted in the artist’s conception above.

slide25

4) Regrowth of Coral Reefs Using Biorock Technology: Karang Lestari coral reef and fisheries restoration project, Indonesia

slide26

Biorock shore protection project at Ihuru Island, Maldives, turned a severely eroding beach into 15 meters (50 feet) growth in a few years

Before: Severe erosion

slide27

Biorock reef in front of the beach uses electricity to grow solid limestone rock on a steel frame and to grow corals. This slows down waves, causes sand to settle, and attracts fish.

slide28

A few years later:

beach has grown

15 meters (50 ft.).

Tidal energy can

grow Biorock reefs

to protect whole

islands from sea

level rise, while

restoring their

coral reefs and

fisheries

slide29

Biorock’s technology speeds the growth of coral reefs 3-5 times and increases survival from severe high temperature 16-50 times. This rapidly increases fish populations and creates ecotourism attractions.

Biorock’s technology can be used to regrow dying coral reefs throughout the world, build coastal protection, restore fisheries, and create mariculture resources.

Biorock’s technology has been proven in field tests in more than 20 Caribbean, Pacific, Indian Ocean, and Southeast Asian countries.

Tidal Energy often found around coral reefs and atolls can be used with Biorock’s technology to regrow reefs in an inexpensive, low-maintenance way using the helical turbine.

slide30

Conclusions

  • Tidal Energy is sustainable, clean, and reliable.
  • Tidal Energy is widely distributed and can offer significant benefits to many coastal nations.
  • Tide Energy can be captured in a practical, efficient, cost-effective way.
  • Tidal Energy deserves to be included on the list of sources of sustainable energy supported and funded by CSD, GEF, UNDP, IEA, UNIDO, CDM, etc.
slide31

Contact Information

Thomas J. Goreau, Ph.D.

President

Global Coral Reef Alliance

37 Pleasant Street

Cambridge MA 02139 USA

+1 (617) 864-4226

[email protected]

http://www.globalcoral.org

Scott D. Anderson, Ph.D.

Coordinator

The Tide-Energy Project near the Mouth of the Amazon

+1 (352) 246-8246 (mobile)

[email protected]

Mr. Edward L. Kurth

President and General Counsel

GCK Technology, Inc.

607 Bluff Cliff Drive

San Antonio, TX 78216

+1 (210) 496-5902

[email protected]

Prof. Alexander M. Gorlov

Chief Technology Officer

GCK Technology, Inc.

607 Bluff Cliff Drive

San Antonio, TX 78216

+1 (617) 277-0986

[email protected]

ad