Environmental impacts of ocean thermal energy conversion.

  • 42 Pages
  • 1.53 MB
  • English

Solar Energy Research Institute
The Physical Object
Pagination42 p. $0.00 C.1.
ID Numbers
Open LibraryOL17587183M
ISBN 10wln88131499

ENVIRON IMPACT ASSESS REV ; POTENTIAL ENVIRONMENTAL IMPACTS OF CLOSED-CYCLE OCEAN THERMAL ENERGY CONVERSION M.S. QUINBY-HUNT, D. SLOAN, AND P. WILDE Ocean Thermal Energy Conversion (OTEC) uses the temperature difference between warm surface water in the tropical ocean and the cooler water at depth to generate by: 8.

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These are primarily ocean currents (specifically western boundary currents), ocean thermal energy conversion, and salinity gradient energy. These forms of ocean energy are introduced and discussed in limited detail in this chapter, in which we outline the main principles, technology types, commercial progress, potential environmental impacts.

As the Ocean Thermal Energy Conversion (OTEC) Program advances toward commercialization, the potential environmental impacts of large-scale development must be assessed. Design modifications that will mitigate or reduce potentially adverse effects must.

While environmental impacts studies of OTEC concluded the benefits of the technology outweighed its impacts, further research is needed in the following areas (“NOAA”): Withdrawal and Discharge Water: Given a MW facility, billion gallons of warm surface water and cold water from depths around meters would be used each impacts of large water volume discharge need.

Finally, PART III undertakes the aspects of energy planning, environmental impacts and socio-economic issues on regional and global levels.

In this fourth edition update, new material includes expanded coverage of biofuels, solar conversion, biomass and fuel cells, storage and transmission, and a new chapter on integrated technologies to. This text presents the scientific principles and developmental potential of ocean energy resources.

It discusses the key factors of OTEC systems, as well as co-products, plus the possible mitigation of global warming with the absorption of atmospheric carbon dioxide.

Concludes with an overview of the economic viability, market potential and Cited by: Quinby-Hunt MS, Sloan D, Wilde P () Potential environmental impacts of closed-cycle ocean thermal energy conversion.

Environ Impact Assess Rev – (Elsevier, New. Ocean thermal energy conversion or simply OTEC is the process of using the ocean itself as a solar technology is still highly theoretical, and utilizes the slight temperature gradient between the warm surface of the ocean and the cooler water deeper down.

This technology operates in a similar way that solar ponds do but on a much larger scale. protocol for environmental baseline monitoring is proposed, focusing on a set of ten chemical oceanographic parameters relevant to OTEC and addressing gaps in knowledge of the ecology and oceanography of the area chosen for OTEC development.

Keywords- Ocean thermal energy conversion, OTEC, renewable energy, Hawaii, environment, oceanography Size: KB.

Ocean Thermal Energy Conversion: Potential Environmental Impacts and Fisheries Christina M Comfort, Candidate University of Hawaii at Manoa.

Ocean thermal energ y conversion (OTEC) power plants have the potential to cause major adverse impacts on the ocean water qual ity.

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Such plants would require entraining andAuthor: Shitalkumar Patel. Renewable Energy From the Deep Ocean: A basic 4-minute introduction from Offshore Infrastructure Associates, Inc, with good animations, based on Puerto Rico as an example location.

Ocean Thermal Energy Conversion: Lockheed Martin: A longer, minute introduction that includes details of Lockheed's OTEC plant in Hawaii and how it was tested. This book discusses both the merits and the physical, mechanical, electrical, and environmental limitations of renewable sources of energy.

It discusses the pros and cons of renewable energy, addresses environmental issues and concerns, and determines ways to avoid or minimize these impacts. Ocean thermal energy conversion (OTEC) is the process of deriving energy from the difference in temperature between surface and deep waters in the tropical oceans.

The OTEC process absorbs thermal energy from warm surface seawater found throughout the tropical oceans and ejects a. Ocean thermal energy conversion (OTEC) technology converts solar energy stored in the layers of the tropical and subtropical oceans.

Thermal heat engines use the temperature difference between the sun-warmed surface water and cold water in the deep ocean. The temperature difference between surface waters and deeper water can reach over 25 oC in summer months, although usually this temperature.

OTEC, ocean thermal energy conversion is an energy technology that converts solar radiation to electric power. OTEC systems use the ocean’s natural thermal gradient, consequently the temperature difference between the warm surface water and the cold deep water below metres by about 20’c, an OTEC system can produce, a significantly.

Recognizing this need, Energy Harvesting: Solar, Wind, and Ocean Energy Conversion Systems describes various energy harvesting technologies, different topologies, and many types of power electronic interfaces for stand-alone utilization or grid connection of energy harvesting applications.

Along with providing all the necessary concepts and. Energy Test. STUDY. PLAY. Solar energy or energy from the sun is contained in.

which of the following is a disadvantage of ocean thermal energy conversion. inefficient plants. a heat exchanger is used in. active solar heating.

YOU MIGHT ALSO LIKE 43. The operation of Ocean Thermal Energy Conversion (OTEC) power plants may affect fish populations in the regions surrounding the plants. As an initial step in estimating the possible impacts of OTEC power plants on local fishery resources at three proposed sites, commercial fishery records were used to identify common commercially-important species and to obtain a general impression of the.

Public Lawthe Ocean Thermal Energy Conversion (OTEC) Act ofwas enacted on August 3, The Act sets as its primary goal the establishment of a legal regime which will permit and encourage the development of ocean thermal energy conversion as a commercial energy technology. Ocean thermal energy conversion (OTEC) uses the ocean thermal gradient between cooler deep and warmer shallow or surface seawaters to run a heat engine and produce useful work, usually in the form of can operate with a very high capacity factor and so can operate in base load mode.

The denser cold water masses, formed by ocean surface water interaction with cold atmosphere in. Ocean Thermal Energy Conversion Karen Anne Finney University of Guelph, Guelph, Ontario, N1G 2W1, Canada Ocean Thermal Energy Conversion (OTEC) is a process that employs the natural temperature difference between the surface and the depths of the ocean.

First introduced inOTEC has been described as an effective and renewable energy Size: KB. Ocean Thermal Energy Conversion is a process using the heat energy that is stored in the ocean.

The oceans collect a huge amount of the world’s heat energy. OTEC uses the heat differences between deep and shallow ocean waters to evaporate a fluid to run a steam turbine and generate.

Ocean thermal energy conversion (OTEC) makes use of the temperature differences between the deep cold and relatively warmer surface waters of the ocean to generate a constant, clean source of electricity. This constancy differs from the output of renewable resources such as wind and wave energy that sometimes produce intermittent electricity.

Ocean thermal energy conversion (OTEC) is not being used for energy generation anywhere right now. Why not. The cost of generating energy is much too high for OTEC to make economic sense.

Ocean Thermal Energy Conversion Development Update. A Presentation to The World Bank, December Environmental Impacts and Mitigating Strategies • Cold Water Intake and Return A Leader in Ocean Thermal Energy Conversion Commercialization Author: EILEEN O'ROURKE, COOFile Size: KB.

A full 50% of residential energy use is also from these things. Using thermal energy can offset this energy usage from 75% to %. This lessens the impact on the environment and on the wallet. Ocean thermal energy is particularly positive.

Nearly 70% of the earth is covered in water, so ocean thermal energy is a very abundant thermal energy. Conventional energy source based on coal, gas, and oil are very much helpful for the improvement in the economy of a country, but on the other hand, some bad impacts of these resources in the environment have bound us to use these resources within some limit and turned our thinking toward the renewable energy resources.

The social, environmental, and economical problems can be omitted by use Author: Mahesh Kumar. The content of the book is more focused on solar PV modules and their conversion technologies.

Therefore, it can be used to train the people who install or going to install solar PV systems in : Shiva Gorjian. The local social and environmental impacts of ocean energy projects are being evaluated as actual deployments multiply, but can be estimated based on the experience of other maritime and offshore industries.

Environmental risks from ocean energy technologies appear to be relatively low, but the early stage of ocean energy deployment creates. An LCA estimates resource requirements, energy use, and environmental impacts of products or services at all life stages.

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The estimates may be derived from detailed, “bottom-up” analyses of mining, manufacturing, transport, construction, operations, and disposal processes or from “top-down” analyses based on national-scale economic input/output models.higher temperature energy sources, are theoretically capable of converting more than 60% of the extracted thermal energy into electricity.

The low energy conversion efRciency of OTEC means that more than 90% of the thermal energy extracted from the ocean’s surface is ‘wasted’ and must be rejected to the cold, deep sea water. This.Ocean Thermal Energy Conversion LUIS A.

VEGA Hawaii Natural Energy Institute, School of Ocean And Earth Science And Technology, University of Hawaii at Manoa, Honolulu, HI, USA Article Outline Glossary Definition of the Subject Introduction OTEC History Ocean Thermal Resources Technical Limitations and Challenges Environmental Impact Open.