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Note: This page contains sample records for the topic "determination ocean thermal" from the National Library of EnergyBeta (NLEBeta).
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1

Ocean Thermal Energy Conversion  

Energy.gov (U.S. Department of Energy (DOE))

A process called ocean thermal energy conversion (OTEC) uses the heat energy stored in the Earth's oceans to generate electricity.

2

Ocean Thermal | Open Energy Information  

Open Energy Info (EERE)

Community Login | Sign Up Search Page Edit History Facebook icon Twitter icon Ocean Thermal Jump to: navigation, search TODO: Add description List of Ocean Thermal Incentives...

3

OCEAN THERMAL ENERGY CONVERSION PROGRAMMATIC ENVIRONMENTAL ASSESSMENT  

E-Print Network (OSTI)

Ocean Thermal Energy Conversion (OTEC) Draft Programmaticof ocean thermal energy conversion technology. U.S. Depart~on Ocean TherUial Energy Conversion, June 18, 1979. Ocean

Sands, M.Dale

2013-01-01T23:59:59.000Z

4

The Thermal Structure of the Upper Ocean  

Science Conference Proceedings (OSTI)

The salient feature of the oceanic thermal structure is a remarkably shallow thermocline, especially in the Tropics and subtropics. What factors determine its depth? Theories for the deep thermohaline circulation provide an answer that depends on ...

Giulio Boccaletti; Ronald C. Pacanowski; S. George; H. Philander; Alexey V. Fedorov

2004-04-01T23:59:59.000Z

5

Energy Basics: Ocean Thermal Energy Conversion  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

Thermal Energy Conversion A process called ocean thermal energy conversion (OTEC) uses the heat energy stored in the Earth's oceans to generate electricity. OTEC works best when...

6

OCEAN THERMAL ENERGY CONVERSION PROGRAMMATIC ENVIRONMENTAL ASSESSMENT  

E-Print Network (OSTI)

DOE-EPA Working Group on Ocean TherUial Energy Conversion,Sands, M.D. (editor) Ocean Thermal Energy Conversion (OTEC)r:he comnercialization of ocean thermal energy conversion

Sands, M.Dale

2013-01-01T23:59:59.000Z

7

Ocean Thermal Energy Conversion | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Thermal Energy Conversion Ocean Thermal Energy Conversion August 16, 2013 - 4:22pm Addthis A process called ocean thermal energy conversion (OTEC) uses the heat energy stored in...

8

Energy Basics: Ocean Thermal Energy Conversion  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

Energy Basics Renewable Energy Printable Version Share this resource Biomass Geothermal Hydrogen Hydropower Ocean Ocean Thermal Energy Conversion Tidal Energy Wave Energy...

9

OCEAN THERMAL ENERGY CONVERSION (OTEC) PROGRAMMATIC ENVIRONMENTAL ANALYSIS  

E-Print Network (OSTI)

Thermal Energy Conversion Conference. Ocean Systems Branch,Thermal Energy Conversion Conference. Ocean Systems Branch,thermal energy conversion, June 18, 1979. Ocean Systems

Sands, M. D.

2011-01-01T23:59:59.000Z

10

NREL-Ocean Energy Thermal Conversion | Open Energy Information  

Open Energy Info (EERE)

Ocean Energy Thermal Conversion Jump to: navigation, search Logo: NREL-Ocean Energy Thermal Conversion Name NREL-Ocean Energy Thermal Conversion AgencyCompany Organization...

11

OCEAN THERMAL ENERGY CONVERSION: AN OVERALL ENVIRONMENTAL ASSESSMENT  

E-Print Network (OSTI)

M.D. (editor). 1980. Ocean Thermal Energy Conversion Draft1980 :. i l OCEAN THERMAL ENERGY CONVERSION: ENVIRONMENTALDevelopment Plan. Ocean Thermal Energy Conversion. U.S. DOE

Sands, M.Dale

2013-01-01T23:59:59.000Z

12

OCEAN THERMAL ENERGY CONVERSION: AN OVERALL ENVIRONMENTAL ASSESSMENT  

E-Print Network (OSTI)

l OCEAN THERMAL ENERGY CONVERSION: ENVIRONMENTAL ASSESSMENTOcean Thermal Energy Conversion Draft Programmatic Environ-Ocean Thermal Energy Conversion. U.S. DOE Assistant Secre-

Sands, M.Dale

2013-01-01T23:59:59.000Z

13

Ocean Thermal Resources off the Hawaiian Islands luisvega@hawaii.edu Ocean Thermal Resources off the Hawaiian Islands  

E-Print Network (OSTI)

information to assist developers of ocean thermal energy conversion (OTEC) systems in site selection functions required to determine electricity production with specific OTEC systems can be found in the open be satisfied with desalinated water produced with OTEC systems. This renewable ocean resource is vast enough

14

Assessment of ocean thermal energy conversion  

E-Print Network (OSTI)

Ocean thermal energy conversion (OTEC) is a promising renewable energy technology to generate electricity and has other applications such as production of freshwater, seawater air-conditioning, marine culture and chilled-soil ...

Muralidharan, Shylesh

2012-01-01T23:59:59.000Z

15

OCEAN THERMAL ENERGY CONVERSION (OTEC) PROGRAMMATIC ENVIRONMENTAL ANALYSIS  

E-Print Network (OSTI)

for the commercialization of ocean thermal energy conversionR. E. Hathaway. Open cycle ocean thermal energy conversion.of sewage effluent in an ocean current. Inst. of Tech. ,

Sands, M. D.

2011-01-01T23:59:59.000Z

16

Ocean Thermal Energy Conversion: An overview  

DOE Green Energy (OSTI)

Ocean thermal energy conversion, or OTEC is a technology that extracts power from the ocean's natural thermal gradient. This technology is being pursued by researchers from many nations; in the United States, OTEC research is funded by the US Department of Energy's Ocean Energy Technology program. The program's goal is to develop the technology so that industry can make a competent assessment of its potential -- either as an alternative or as a supplement to conventional energy sources. Federally funded research in components and systems will help OTEC to the threshold of commercialization. This publication provides an overview of the OTEC technology. 47 refs., 25 figs.

Not Available

1989-11-01T23:59:59.000Z

17

STEP—A Temperature Profiler for Measuring the Oceanic Thermal Boundary Layer at the Ocean–Air Interface  

Science Conference Proceedings (OSTI)

A fast measuring system has been designed and built to determine the oceanic thermal microstructure at the ocean–air interface. The system consists of a profiler sonde, which amends through the uppermost few meters of the ocean with a time of ...

Theodor C. Mammen; Nikolaus von Bosse

1990-04-01T23:59:59.000Z

18

Ocean thermal energy conversion plants : experimental and analytical study of mixing and recirculation  

E-Print Network (OSTI)

Ocean thermal energy conversion (OTEC) is a method of generating power using the vertical temperature gradient of the tropical ocean as an energy source. Experimental and analytical studies have been carried out to determine ...

Jirka, Gerhard H.

19

OCEAN THERMAL ENERGY CONVERSION (OTEC) PROGRAMMATIC ENVIRONMENTAL ANALYSIS  

E-Print Network (OSTI)

cycle ocean thermal difference power plant. M.S. Thesis,ocean thermal energy conversion power plants. M.S. Thesis.comments on the thermal effects of power plants on fish eggs

Sands, M. D.

2011-01-01T23:59:59.000Z

20

OCEAN THERMAL ENERGY CONVERSION (OTEC) PROGRAMMATIC ENVIRONMENTAL ANALYSIS  

E-Print Network (OSTI)

for the commercialization of ocean thermal energy conversionOpen cycle ocean thermal energy conversion. A preliminary1978. 'Open cycle thermal energy converS1on. A preliminary

Sands, M. D.

2011-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "determination ocean thermal" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


21

Ocean Thermal Energy Conversion: Potential Environmental Impacts and Fisheries  

E-Print Network (OSTI)

Ocean Thermal Energy Conversion: Potential Environmental Impacts and Fisheries Christina M Comfort Institute #12;Ocean Thermal Energy Conversion (OTEC) · Renewable energy ­ ocean thermal gradient · Large, M.Sc. Candidate University of Hawaii at Manoa Department of Oceanography Hawaii Natural Energy

Hawai'i at Manoa, University of

22

Ocean Thermal Energy Conversion Basics | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Thermal Energy Conversion Basics Thermal Energy Conversion Basics Ocean Thermal Energy Conversion Basics August 16, 2013 - 4:22pm Addthis A process called ocean thermal energy conversion (OTEC) uses the heat energy stored in the Earth's oceans to generate electricity. OTEC works best when the temperature difference between the warmer, top layer of the ocean and the colder, deep ocean water is about 36°F (20°C). These conditions exist in tropical coastal areas, roughly between the Tropic of Capricorn and the Tropic of Cancer. To bring the cold water to the surface, ocean thermal energy conversion plants require an expensive, large-diameter intake pipe, which is submerged a mile or more into the ocean's depths. Some energy experts believe that if ocean thermal energy conversion can become cost-competitive with conventional power technologies, it could be

23

Ocean Thermal Energy Conversion Basics | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Thermal Energy Conversion Basics Thermal Energy Conversion Basics Ocean Thermal Energy Conversion Basics August 16, 2013 - 4:22pm Addthis A process called ocean thermal energy conversion (OTEC) uses the heat energy stored in the Earth's oceans to generate electricity. OTEC works best when the temperature difference between the warmer, top layer of the ocean and the colder, deep ocean water is about 36°F (20°C). These conditions exist in tropical coastal areas, roughly between the Tropic of Capricorn and the Tropic of Cancer. To bring the cold water to the surface, ocean thermal energy conversion plants require an expensive, large-diameter intake pipe, which is submerged a mile or more into the ocean's depths. Some energy experts believe that if ocean thermal energy conversion can become cost-competitive with conventional power technologies, it could be

24

Open cycle ocean thermal energy conversion system  

DOE Patents (OSTI)

An improved open cycle ocean thermal energy conversion system including a flash evaporator for vaporizing relatively warm ocean surface water and an axial flow, elastic fluid turbine having a vertical shaft and axis of rotation. The warm ocean water is transmitted to the evaporator through a first prestressed concrete skirt-conduit structure circumferentially situated about the axis of rotation. The unflashed warm ocean water exits the evaporator through a second prestressed concrete skirt-conduit structure located circumferentially about and radially within the first skirt-conduit structure. The radially inner surface of the second skirt conduit structure constitutes a cylinder which functions as the turbine's outer casing and obviates the need for a conventional outer housing. The turbine includes a radially enlarged disc element attached to the shaft for supporting at least one axial row of radially directed blades through which the steam is expanded. A prestressed concrete inner casing structure of the turbine has upstream and downstream portions respectively situated upstream and downstream from the disc element. The radially outer surfaces of the inner casing portions and radially outer periphery of the axially interposed disc cooperatively form a downwardly radially inwardly tapered surface. An annular steam flowpath of increasing flow area in the downward axial direction is radially bounded by the inner and outer prestressed concrete casing structures. The inner casing portions each include a transversely situated prestressed concrete circular wall for rotatably supporting the turbine shaft and associated structure. The turbine blades are substantially radially coextensive with the steam flowpath and receive steam from the evaporator through an annular array of prestressed concrete stationary vanes which extend between the inner and outer casings to provide structural support therefor and impart a desired flow direction to the steam.

Wittig, J. Michael (West Goshen, PA)

1980-01-01T23:59:59.000Z

25

On Production and Dissipation of Thermal Variance in the Oceans  

Science Conference Proceedings (OSTI)

An integral relationship is derived expressing the total dissipation of thermal variance by oceanic microstructure in terms of the large-scale forcing at the ocean surface by air/sea heat exchange. The net heat gain by the ocean over warm water ...

Terrence M. Joyce

1980-03-01T23:59:59.000Z

26

An Operational Global-Scale Ocean Thermal Analysis System  

Science Conference Proceedings (OSTI)

The Optimum Thermal Interpolation System (OTIS) is an ocean thermal analysis product developed for real-time operational use at the U.S. Navy's Fleet Numerical Oceanography Center. It functions in an analysis-prediction-analysis data assimilation ...

R. Michael Clancy; Patricia A. Phoebus; Kenneth D. Pollak

1990-04-01T23:59:59.000Z

27

OCEAN THERMAL ENERGY CONVERSION (OTEC) PROGRAMMATIC ENVIRONMENTAL ANALYSIS  

E-Print Network (OSTI)

for Western Gulf of Mexico. Energy Research and Developmentfor central Gulf of Mexico. Energy Research and DevelopmentGulf of Mexico, - IV-34 in Proc. Fourth Ocean Thermal Energy

Sands, M. D.

2011-01-01T23:59:59.000Z

28

List of Ocean Thermal Incentives | Open Energy Information  

Open Energy Info (EERE)

Thermal Incentives Thermal Incentives Jump to: navigation, search The following contains the list of 96 Ocean Thermal Incentives. CSV (rows 1 - 96) Incentive Incentive Type Place Applicable Sector Eligible Technologies Active Business Energy Investment Tax Credit (ITC) (Federal) Corporate Tax Credit United States Agricultural Commercial Industrial Utility Anaerobic Digestion Biomass CHP/Cogeneration Fuel Cells Fuel Cells using Renewable Fuels Geothermal Direct Use Geothermal Electric Ground Source Heat Pumps Hydroelectric energy Landfill Gas Microturbines Municipal Solid Waste Ocean Thermal Photovoltaics Small Hydroelectric Small Wind Solar Space Heat Solar Thermal Electric Solar Thermal Process Heat Solar Water Heat Tidal Energy Wave Energy Wind energy Yes CCEF - Project 150 Initiative (Connecticut) State Grant Program Connecticut Commercial Solar Thermal Electric

29

Thermally Driven Circulations in Small Oceanic Basins  

Science Conference Proceedings (OSTI)

A linear, steady model of the circulation of a small (f plane) oceanic basin driven by heating or cooling at the surface is considered in order to examine the partition of upwelling (heating) or downwelling (cooling) between the basin's interior ...

Joseph Pedlosky

2003-11-01T23:59:59.000Z

30

Thermal Expansion in Ocean and Coupled General Circulation Models  

Science Conference Proceedings (OSTI)

More than half of the predicted rise in future sea level caused by the enhanced greenhouse effect is currently thought to be due to the thermal expansion of the oceans. Here methods for quantifying this thermal expansion component of sea level ...

D. R. Jackett; T. J. McDougall; M. H. England; A. C. Hirst

2000-04-01T23:59:59.000Z

31

COMMERCIAL FISHERY DATA FROM A PROPOSED OCEAN THERMAL ENERGY CONVERSION (OTEC) SITE IN PUERTO RICO  

E-Print Network (OSTI)

Ocean Thermal Energy Conversion (OTEC) sites to identify thethermal energy conversion (OTEC) program; preoperationalOCEAN THERHAL _ENERGY _CONVERSION(OTEC) --:siTE IN PUERTO

Ryan, Constance J.

2013-01-01T23:59:59.000Z

32

OCEAN THERMAL ENERGY CONVERSION PRELIMINARY DATA REPORT FOR THE NOVEMBER 1977 GOTEC-02 CRUISE TO THE GULF OF MEXICO MOBILE SITE  

E-Print Network (OSTI)

9437 GOTEC-02 OCEAN THERMAL ENERGY CONVERSION PRELIMINARYto potential Ocean Thermal Energy Conversion (OTEC) sites inThree Proposed Ocean Thermal Energy Conversion (OTEC) Sites:

Commins, M.L.

2010-01-01T23:59:59.000Z

33

Thermal Stability of the World Ocean Thermoclines  

Science Conference Proceedings (OSTI)

Because of the strong variation with temperature of the thermal expansion coefficient of seawater, both horizontal and vertical mixing that perturb the gradients produce changes of volume, usually a decrease, that shift mass relative to the earth'...

N. P. Fofonoff

2001-08-01T23:59:59.000Z

34

Seawater pump study: Ocean Thermal Energy Conversion Program. Final report. [For ocean thermal power plants  

DOE Green Energy (OSTI)

The pumping power required to move cold seawater and warm seawater through an Ocean Thermal Energy Conversion (OTEC) power plant is a significant portion of the plant power output; therefore, seawater pump performance, sizing, and cost information are very influential inputs into any power plant system design optimizations. The analysis and evaluation of large seawater pumping systems selected specifically for the OTEC application are provided with a view toward judging the impact of pump selection on overall OTEC power plant performance. A self-contained bulb, direct drive, axial flow pump was found to have a distinct advantage in performance and arrangement flexibility. A design of a pump operating at a net total head rise of 3.5 meters and a flow capacity of 100 m/sup 3//s is presented including pump blade geometry (profiles), pump diffuser geometry, and pump/diffuser configuration and performance. Results are presented in terms of the geometric and power requirements of several related pump designs over a range of seawater capacity from 25 m/sup 3//s to 100 m/sup 3//s. Summary analysis and evaluations include pump design weights and cost estimates.

Little, T.E.

1978-01-01T23:59:59.000Z

35

A PRELIMINARY EVALUATION OF IMPINGEMENT AND ENTRAINMENT BY OCEAN THERMAL ENERGY CONVERSION (OTEC) PLANTS  

E-Print Network (OSTI)

Thermal Energy Conversion (OTEC) Program PreoperationalOcean Thermal Energy Conversion (OTEC), U.S. Department ofOregon State University. Conversion Power Plants. Corvallis,

Sullivan, S.M.

2013-01-01T23:59:59.000Z

36

Environmental programs for ocean thermal energy conversion (OTEC)  

Science Conference Proceedings (OSTI)

The environmental research effort in support of the US Department of Energy's Ocean Thermal Energy Conversion (OTEC) program has the goal of providing documented information on the effect of proposed operations on the ocean and the effect of oceanic conditions on the plant. The associated environment program consists of archival studies in potential areas serial oceanographic cruises to sites or regions of interest, studies from various fixed platforms at sites, and compilation of such information for appropriate legal compliance and permit requirements and for use in progressive design of OTEC plants. Site/regions investigated are south of Mobile and west of Tampa, Gulf of Mexico; Punta Tuna, Puerto Rico; St. Croix, Virgin Islands; Kahe Point, Oahu and Keahole Point, Hawaii, Hawaiian Islands; and off the Brazilian south Equatorial Coast. Four classes of environmental concerns identified are: redistribution of oceanic properties (ocean water mixing, impingement/entrainment etc.); chemical pollution (biocides, working fluid leaks, etc.); structural effects (artificial reef, aggregation, nesting/migration, etc.); socio-legal-economic (worker safety, enviromaritime law, etc.).

Wilde, P.

1981-07-01T23:59:59.000Z

37

Near-inertial and thermal to atmospheric forcing in the North Atlantic Ocean  

E-Print Network (OSTI)

Observational and modeling techniques are employed to investigate the thermal and inertial upper ocean response to wind and buoyancy forcing in the North Atlantic Ocean. First, the seasonal kinetic energy variability of ...

Silverthorne, Katherine E

2010-01-01T23:59:59.000Z

38

A Statistical Comparison of Methods for Determining Ocean Surface Winds  

Science Conference Proceedings (OSTI)

The performance of various techniques which determine ocean surface winds using information from large-scale analyses and forecast models is discussed. The techniques evaluated are the geostrophic relation, a simple empirical law, National ...

W. H. Gemmill; T. W. Yu; D. M. Feit

1988-06-01T23:59:59.000Z

39

Ocean Thermal Energy Conversion (OTEC) Program. Volume 1. Preoperatinal ocean test platform  

DOE Green Energy (OSTI)

An environmental impact assessment for the field test of the first preoperational Ocean Thermal Energy Conversion, referred to as OTEC-1, is presented. The conceptual design of OTEC-1 is described, and the existing environments at the four OTEC-1 study sites (Punta Tuna, Keahole Point, offshore New Orleans, and offshore Tampa) are discussed. The environmental impacts considered include organism impingement, organism entrainment, ocean water mixing, metallic ion release, chlorine release, ammonia leakage, oil release, and platform attraction. The development of a risk assessment model for credible accidents at OTEC-1 is discussed. Also, the federal and state legal, safety, and health policies pertinent to OTEC-1 are presented. A glossary is included. (WHK)

Not Available

1979-03-01T23:59:59.000Z

40

Carbon dioxide release from ocean thermal energy conversion (OTEC) cycles  

DOE Green Energy (OSTI)

This paper presents the results of recent measurements of CO{sub 2} release from an open-cycle ocean thermal energy conversion (OTEC) experiment. Based on these data, the rate of short-term CO{sub 2} release from future open-cycle OTEC plants is projected to be 15 to 25 times smaller than that from fossil-fueled electric power plants. OTEC system that incorporate subsurface mixed discharge are expected to result in no long-term release. OTEC plants can significantly reduce CO{sub 2} emissions when substituted for fossil-fueled power generation. 12 refs., 4 figs., 3 tabs.

Green, H.J. (Solar Energy Research Inst., Golden, CO (USA)); Guenther, P.R. (Scripps Institution of Oceanography, La Jolla, CA (USA))

1990-09-01T23:59:59.000Z

Note: This page contains sample records for the topic "determination ocean thermal" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


41

Tropical Oceanic Response to Extratropical Thermal Forcing in a Coupled Climate Model: A Comparison between the Atlantic and Pacific Oceans  

Science Conference Proceedings (OSTI)

The tropical oceanic response to the extratropical thermal forcing is quantitatively estimated in a coupled climate model. This work focuses on comparison of the responses between the tropical Atlantic and Pacific. Under the same extratropical ...

Haijun Yang; Lu Wang

2011-08-01T23:59:59.000Z

42

OCEAN THERMAL ENERGY CONVERSION PRELIMINARY DATA REPORT FOR THE NOVEMBER 1977 GOTEC-02 CRUISE TO THE GULF OF MEXICO MOBILE SITE  

E-Print Network (OSTI)

02 OCEAN THERMAL ENERGY CONVERSION PRELIMINARY DATA REPORTOcean Thermal Energy Conversion (OTEC) sites in the Gulf ofOcean Thermal Energy Conversion (OTEC) Sites: Puerto Rico,

Commins, M.L.

2010-01-01T23:59:59.000Z

43

OCEAN THERMAL ENERGY CONVERSION ECOLOGICAL DATA REPORT FROM 0. S. S. RESEARCHER IN GULF OF MEXICO, JULY 12-23, 1977.  

E-Print Network (OSTI)

01 OCEAN THERMAL ENERGY CONVERSION ECOLOGICAL DATA REPORTOcean Thermal Energy Conversion (OTEC) Sites: Puerto Rico,Ocean Thermal Energy Conversion plant were in- itiated in

Quinby-Hunt, M.S.

2008-01-01T23:59:59.000Z

44

Low-Frequency Variability in the Midlatitude Baroclinic Atmosphere Induced by an Oceanic Thermal Front  

Science Conference Proceedings (OSTI)

This study examines the flow induced by an east–west-oriented oceanic thermal front in a highly idealized baroclinic model. Previous work showed that thermal fronts could produce energetic midlatitude jets in an equivalent-barotropic atmosphere ...

Yizhak Feliks; Michael Ghil; Eric Simonnet

2007-01-01T23:59:59.000Z

45

Ocean Thermal Energy Conversion (OTEC) A New Secure Renewable Energy Source  

E-Print Network (OSTI)

Ocean Thermal Energy Conversion (OTEC) A New Secure Renewable Energy Source For Defense New Ventures #12;What is OTEC? OTEC B fiOTEC Benefits: Large Renewable Energy Source 3-5 Terawatts Water Temperature Delta 2 A New Clean Renewable 24/7 Energy Source #12;Ocean Thermal Energy Conversion

46

Lockheed Testing the Waters for Ocean Thermal Energy System  

Energy.gov (U.S. Department of Energy (DOE))

The company is working to develop a system to produce electricity using temperature differences in the ocean.

47

Draft environmental assessment: Ocean Thermal Energy Conversion (OTEC) Pilot Plants  

DOE Green Energy (OSTI)

This Environmental Assessment (EA) has been prepared, in accordance with the National Environmental Policy Act of 1969, for the deployment and operation of a commercial 40-Megawatt (MW) Ocean Thermal Energy Conversion (OTEC) Pilot Plant (hereafter called the Pilot Plant). A description of the proposed action is presented, and a generic environment typical of the candidate Pilot Plant siting regions is described. An assessment of the potential environmental impacts associated with the proposed action is given, and the risk of credible accidents and mitigating measures to reduce these risks are considered. The Federal and State plans and policies the proposed action will encompass are described. Alternatives to the proposed action are presented. Appendix A presents the navigation and environmental information contained in the US Coast Pilot for each of the candidate sites; Appendix B provides a brief description of the methods and calculations used in the EA. It is concluded that environmental disturbances associated with Pilot Plant activities could potentially cause significant environmental impacts; however, the magnitude of these potential impacts cannot presently be assessed, due to insufficient engineering and environmental information. A site- and design-specific OTEC Pilot Plant Environmental Impact Statement (EIS) is required to resolve the potentially significant environmental effects associated with Pilot Plant deployment and operation. (WHK)

Sullivan, S.M.; Sands, M.D.; Donat, J.R.; Jepsen, P.; Smookler, M.; Villa, J.F.

1981-02-01T23:59:59.000Z

48

Ocean Thermal Energy Conversion (OTEC) Programmatic Environmental Analysis--Appendices  

SciTech Connect

The programmatic environmental analysis is an initial assessment of Ocean Thermal Energy Conversion (OTEC) technology considering development, demonstration and commercialization. It is concluded that the OTEC development program should continue because the development, demonstration, and commercialization on a single-plant deployment basis should not present significant environmental impacts. However, several areas within the OTEC program require further investigation in order to assess the potential for environmental impacts from OTEC operation, particularly in large-scale deployments and in defining alternatives to closed-cycle biofouling control: (1) Larger-scale deployments of OTEC clusters or parks require further investigations in order to assess optimal platform siting distances necessary to minimize adverse environmental impacts. (2) The deployment and operation of the preoperational platform (OTEC-1) and future demonstration platforms must be carefully monitored to refine environmental assessment predictions, and to provide design modifications which may mitigate or reduce environmental impacts for larger-scale operations. These platforms will provide a valuable opportunity to fully evaluate the intake and discharge configurations, biofouling control methods, and both short-term and long-term environmental effects associated with platform operations. (3) Successful development of OTEC technology to use the maximal resource capabilities and to minimize environmental effects will require a concerted environmental management program, encompassing many different disciplines and environmental specialties. This volume contains these appendices: Appendix A -- Deployment Scenario; Appendix B -- OTEC Regional Characterization; and Appendix C -- Impact and Related Calculations.

Authors, Various

1980-01-01T23:59:59.000Z

49

Gravitational Potential Energy Balance for the Thermal Circulation in a Model Ocean  

Science Conference Proceedings (OSTI)

The gravitational potential energy balance of the thermal circulation in a simple rectangular model basin is diagnosed from numerical experiments based on a mass-conserving oceanic general circulation model. The vertical mixing coefficient is ...

Rui Xin Huang; Xingze Jin

2006-07-01T23:59:59.000Z

50

The Relationship between Tibet-Tropical Ocean Thermal Contrast and Interannual Variability of Indian Monsoon Rainfall  

Science Conference Proceedings (OSTI)

During the northern summer the Tibetan Plateau is a heat source for the atmosphere, and the Equatorial Pacific Ocean Cold Tongue is a heat sink, both contributing to the thermal forcing of large-scale quasi-zonal atmospheric circulation.

Congbin Fu; Joseph O. Fletcher

1985-08-01T23:59:59.000Z

51

Intraseasonal Variability of the Upper-Ocean Thermal Structure Observed at 0° and 165°E  

Science Conference Proceedings (OSTI)

In response to perturbations in surface wind and energy fluxes associated with the atmospheric Madden–Julian oscillation (MJO), the thermal structure of the upper ocean (surface to 300 m) in the equatorial western Pacific exhibits prominent and ...

Chidong Zhang

1997-12-01T23:59:59.000Z

52

Low-Frequency Variability in the Midlatitude Atmosphere Induced by an Oceanic Thermal Front  

Science Conference Proceedings (OSTI)

This study examines the flow induced in a highly idealized atmospheric model by an east–west-oriented oceanic thermal front. The model has a linear marine boundary layer coupled to a quasigeostrophic, equivalent- barotropic free atmosphere. The ...

Yizhak Feliks; Michael Ghil; Eric Simonnet

2004-05-01T23:59:59.000Z

53

Determination of thermal neutron capture gamma yields.  

E-Print Network (OSTI)

A method of analysing Ge(Li) thermal neutron capture gamma spectra to obtain total gamma yields has been developed. Tie method determines both the yields from the well resolved gamma peaks in a spectrum as well as the gamma ...

Harper, Thomas Lawrence

1969-01-01T23:59:59.000Z

54

Wave Breaking and Ocean Surface Layer Thermal Response  

Science Conference Proceedings (OSTI)

The effect of breaking waves on ocean surface temperatures and surface boundary layer deepening is investigated. The modification of the Mellor–Yamada turbulence closure model by Craig and Banner and others to include surface wave breaking ...

George Mellor; Alan Blumberg

2004-03-01T23:59:59.000Z

55

Determining the Ocean Circulation and Improving the Geoid from Satellite Altimetry  

Science Conference Proceedings (OSTI)

The combined problem of determining the ocean circulation and improving the geoid from satellite altimetry is formulated and studied. Minimum variance estimation is used to form optimum estimates of the ocean topography and the geoid. These ...

John C. Marshall

1985-03-01T23:59:59.000Z

56

Heat exchanger cleaning in support of ocean thermal energy conversion (OTEC) - electronics subsystems  

DOE Green Energy (OSTI)

Electronics systems supporting the development of biofouling countermeasures for Ocean Thermal Energy Conversion (OTEC) are described. Discussed are the thermistor/thermopile amplifiers, heaters, flowmeters, temperature measurement, control systems for chlorination, flow driven brushes, and recirculating sponge rubber balls. The operation and troubleshooting of each electronic subsystem is documented.

Lott, D.F.

1980-12-01T23:59:59.000Z

57

Annual Cycle of Subsurface Thermal Structure in the Tropical Atlantic Ocean  

Science Conference Proceedings (OSTI)

The subsurface thermal structure in the tropical Atlantic Ocean (30°N–20°S, East of 80°W) is studied on the basis of an extensive data bank of subsurface soundings. Calendar monthly maps are presented showing mixed layer depth, base of ...

Stefan Hastenrath; Jacques Merle

1987-09-01T23:59:59.000Z

58

An Attempt to Estimate the Thermal Resistance of the Upper Ocean to Climatic Change  

Science Conference Proceedings (OSTI)

An attempt is made to estimate the thermal inertia of the upper ocean, relevant to climatic change. This is done by assuming that the annual variation in sea surface temperature (SST) can, to a first-order approximation, be described by a simple ...

H. M. Van Den Dool; J. D. Horel

1984-05-01T23:59:59.000Z

59

Open cycle ocean thermal energy conversion system structure  

DOE Patents (OSTI)

A generally mushroom-shaped, open cycle OTEC system and distilled water producer which has a skirt-conduit structure extending from the enlarged portion of the mushroom to the ocean. The enlarged part of the mushroom houses a toroidal casing flash evaporator which produces steam which expands through a vertical rotor turbine, partially situated in the center of the blossom portion and partially situated in the mushroom's stem portion. Upon expansion through the turbine, the motive steam enters a shell and tube condenser annularly disposed about the rotor axis and axially situated beneath the turbine in the stem portion. Relatively warm ocean water is circulated up through the radially outer skirt-conduit structure entering the evaporator through a radially outer portion thereof, flashing a portion thereof into motive steam, and draining the unflashed portion from the evaporator through a radially inner skirt-conduit structure. Relatively cold cooling water enters the annular condenser through the radially inner edge and travels radially outwardly into a channel situated along the radially outer edge of the condenser. The channel is also included in the radially inner skirt-conduit structure. The cooling water is segregated from the potable, motive steam condensate which can be used for human consumption or other processes requiring high purity water. The expansion energy of the motive steam is partially converted into rotational mechanical energy of the turbine rotor when the steam is expanded through the shaft attached blades. Such mechanical energy drives a generator also included in the enlarged mushroom portion for producing electrical energy. Such power generation equipment arrangement provides a compact power system from which additional benefits may be obtained by fabricating the enclosing equipment, housings and component casings from low density materials, such as prestressed concrete, to permit those casings and housings to also function as a floating support vessel.

Wittig, J. Michael (West Goshen, PA)

1980-01-01T23:59:59.000Z

60

A Bernoulli Inverse Method for Determining the Ocean Circulation  

Science Conference Proceedings (OSTI)

A new inverse method for finding the large-scale ocean circulation is described. Unlike most previous methods it uses no horizontal gradient information, and is designed for widely spaced data. The method assumes that density, (linear) potential ...

Peter D. Killworth

1986-12-01T23:59:59.000Z

Note: This page contains sample records for the topic "determination ocean thermal" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


61

Deep water pipe, pump, and mooring study: Ocean Thermal Energy Conversion program. Final report  

DOE Green Energy (OSTI)

The ocean engineering issues affecting the design, construction, deployment, and operation of Ocean Thermal Energy Conversion (OTEC) power plants are of key importance. This study addressed the problems associated with the conceptual design of the deep-water pipe, cold-water-pumping, and platform mooring arrangements. These subsystems fall into a natural grouping since the parameters affecting their design are closely related to each other and to the ocean environment. Analysis and evaluations are provided with a view toward judging the impact of the various subsystems on the overall plant concept and to provide an estimate of material and construction cost. Parametric data is provided that describes mooring line configurations, mooring line loads, cold water pipe configurations, and cold water pumping schemes. Selected parameters, issues, and evaluation criteria are used to judge the merits of candidate concepts over a range of OTEC plant size from 100 MWe to 1000 MWe net output power.

Little, T.E.; Marks, J.D.; Wellman, K.H.

1976-06-01T23:59:59.000Z

62

Design and cost of near-term OTEC (Ocean Thermal Energy Conversion) plants for the production of desalinated water and electric power. [Ocean Thermal Energy Conversion (OTEC)  

DOE Green Energy (OSTI)

There currently is an increasing need for both potable water and power for many islands in the Pacific and Caribbean. The Ocean Thermal Energy Conversion (OTEC) technology fills these needs and is a viable option because of the unlimited supply of ocean thermal energy for the production of both desalinated water and electricity. The OTEC plant design must be flexible to meet the product-mix demands that can be very different from site to site. This paper describes different OTEC plants that can supply various mixes of desalinated water and vapor -- the extremes being either all water and no power or no water and all power. The economics for these plants are also presented. The same flow rates and pipe sizes for both the warm and cold seawater streams are used for different plant designs. The OTEC plant designs are characterized as near-term because no major technical issues need to be resolved or demonstrated. The plant concepts are based on DOE-sponsored experiments dealing with power systems, advanced heat exchanger designs, corrosion and fouling of heat exchange surfaces, and flash evaporation and moisture removal from the vapor using multiple spouts. In addition, the mature multistage flash evaporator technology is incorporated into the plant designs were appropriate. For the supply and discharge warm and cold uncertainties do exist because the required pipe sizes are larger than the maximum currently deployed -- 40-inch high-density polyethylene pipe at Keahole Point in Hawaii. 30 refs., 6 figs., 8 tabs.

Rabas, T.; Panchal, C.; Genens, L.

1990-01-01T23:59:59.000Z

63

Ocean thermal energy conversion power system development-I. Phase I. Final report  

DOE Green Energy (OSTI)

The objective of the Ocean Thermal Energy Conversion (OTEC) Power System Development-I (PSD-I), Phase I, study was to develop conceptual and preliminary designs of closed-cycle ammonia power system modules for the 100-MW(e) OTEC Demonstration Plant, the 400-MW(e) Commercial Size Plant, and Heat Exchanger Test Articles representative of the full-size power system module design. Results are presented.

Not Available

1978-12-18T23:59:59.000Z

64

Circulation within the Ocean Storms Area Located in the Northeast Pacific Ocean Determined by Inverse Methods  

Science Conference Proceedings (OSTI)

An inverse model was applied to hydrographic data obtained from a cruise in the autumn of 1987 in a small area (300 × 250 km) in the northeast Pacific Ocean. The inverse model used geostrophy and a linear ?-plane vorticity equation as dynamical ...

R. J. Matear

1993-04-01T23:59:59.000Z

65

Ocean thermal plantships for production of ammonia as the hydrogen carrier.  

Science Conference Proceedings (OSTI)

Conventional petroleum, natural gas, and coal are the primary sources of energy that have underpinned modern civilization. Their continued availability in the projected quantities required and the impacts of emission of greenhouse gases (GHGs) on the environment are issues at the forefront of world concerns. New primary sources of energy are being sought that would significantly reduce the emissions of GHGs. One such primary source that can help supply energy, water, and fertilizer without GHG emissions is available in the heretofore unexploited thermal gradients of the tropical oceans. The world's oceans are the largest natural collector and reservoir of solar energy. The potential of ocean energy is limitless for producing base-load electric power or ammonia as the hydrogen carrier and fresh water from seawater. However, until now, ocean energy has been virtually untapped. The general perception is that ocean thermal energy is limited to tropical countries. Therefore, the full potential of at-sea production of (1) ammonia as a hydrogen carrier and (2) desalinated water has not been adequately evaluated. Using ocean thermal plantships for the at-sea co-production of ammonia as a hydrogen carrier and desalinated water offer potential energy, environmental, and economic benefits that support the development of the technology. The introduction of a new widespread solution to our projected energy supply requires lead times of a decade or more. Although continuation of the ocean thermal program from the 1970s would likely have put us in a mitigating position in the early 2000s, we still have a window of opportunity to dedicate some of our conventional energy sources to the development of this renewable energy by the time new sources would be critically needed. The primary objective of this project is to evaluate the technical and economic viability of ocean thermal plantships for the production of ammonia as the hydrogen carrier. This objective is achieved by completing project tasks that consist of updating the John Hopkins University/Applied Physics Laboratory (JHU/APL) pilot plantship design and extrapolating it to commercial plantships, evaluating a new energy-efficient ammonia synthesis process, evaluating the co-production of desalinated water on plantships, and developing a conceptual design of a satellite plantships system for commercial-scale ammonia production. In addition, an industrial workshop was organized to present the results and develop future goals for commercialization of ocean thermal plantships by 2015. The following goals, arranged in chronological order, were examined at the workshop: (1) Global displacement of petroleum-fuel-based (diesel, fuel oil, naphtha) power generation for freeing up these fuels for transportation, chemical feedstock, and other high-valued uses; (2) At-sea production of desalinated water for regions of critical water shortages; (3) Displacement of carbon-based feed stocks and energy for production of ammonia fertilizers; (4) Development of hydrogen supply to allow economic processing of heavy crude oils and upgrading oil sands; (5) Development of ammonia-fueled distributed energy to displace natural-gas fueled power generation to free up natural gas for higher-value uses and the mitigation of issues associated with imported liquefied natural gas (LNG); and (6) Use of ammonia as a hydrogen carrier for transportation.

Panchal, C.B.; Pandolfini, P. P.; Kumm, W. H.; Energy Systems; Johns Hopkins Univ.; Arctic Energies, Ltd.

2009-12-02T23:59:59.000Z

66

Near and far field models of external fluid mechanics of Ocean Thermal Energy Conversion (OTEC) power plants  

E-Print Network (OSTI)

The world is facing the challenge of finding new renewable sources of energy - first, in response to fossil fuel reserve depletion, and second, to reduce greenhouse gas emissions. Ocean Thermal Energy Conversion (OTEC) can ...

Rodríguez Buño, Mariana

2013-01-01T23:59:59.000Z

67

Research on the external fluid mechanics of ocean thermal energy conversion plants : report covering experiments in a current  

E-Print Network (OSTI)

This report describes a set of experiments in a physical model study to explore plume transport and recirculation potential for a range of generic Ocean Thermal Energy Conversion (OTEC) plant designs and ambient conditions. ...

Fry, David J.

1981-01-01T23:59:59.000Z

68

Baroclinic Adjustment in an Atmosphere–Ocean Thermally Coupled Model: The Role of the Boundary Layer Processes  

Science Conference Proceedings (OSTI)

Baroclinic eddy equilibration and the roles of different boundary layer processes in limiting the baroclinic adjustment are studied using an atmosphere–ocean thermally coupled model. Boundary layer processes not only affect the dynamical ...

Yang Zhang; Peter H. Stone

2011-11-01T23:59:59.000Z

69

Corrosion and biofouling on the non-heat-exchanger surfaces of an ocean thermal energy conversion power plant: a survey  

DOE Green Energy (OSTI)

Of the many foreseeable problems confronting economical ocean thermal energy conversion operation, two major items are the deterioration of the structural and functional components, which prevents efficient operation, and the biofouling of the surfaces, which adds excess weight to the floating ocean platform. The techniques required for effective long-term control of deterioration and corrosion have been investigated actively for many years, and successful solutions for most situations have been developed. For the most part, these solutions can be directly transferred to the ocean thermal energy conversion plant. The majority of problems in these areas are expected to be associated with scale-up and will require some advanced development due to the immensity of the ocean thermal energy conversion platform. Current antifouling control systems are not effective for long-term fouling prevention. Commercially available antifouling coatings are limited to a 3-year service life in temperate waters, and even shorter in tropical waters. However, underwater cleaning techniques and some fouling-control systems presently being used by conventional power plants may find utility on an ocean thermal energy conversion plant. In addition, some recent major advances in long-term antifouling coatings sponsored by the Navy may be applicable to ocean thermal energy conversion. 132 references.

Castelli, V.J. (ed.)

1979-05-01T23:59:59.000Z

70

In-situ biofouling of ocean thermal energy conversion (OTEC) evaporator tubes  

Science Conference Proceedings (OSTI)

The Puerto Rico Center for Energy and Environmental Research equipped a LCU facility in 1100 m of water near Punta Tuna, Puerto Rico to measure in situ biofouling of simulated Ocean Thermal Energy Conversion evaporator tubes. The system consisted of two 5052 aluminum alloy and two titanium tubes, through which a continuous flow of ocean water was maintained. The tubes were cleaned three times and the fouling resistance was measured, showing only slight differences between the tubes with respect to heat transfer loss resulting from biofouling. In all units, the average fouling rate after cleaning was greater than before cleaning, and only after the first cleaning did the aluminum units show greater fouling rates than did the titanium. The titanium units showed a progressive increase in the fouling rates with each cleaning. The subsequent average fouling rates for all units after eight months were between 4 and 4.6 x 0.000010 sq m-k/W-day.

Sasscer, D.S. (Univ. of Puerto Rico, Mayaguez); Morgan, T. (Argonne National Lab., IL)

1981-05-01T23:59:59.000Z

71

Variational Data Assimilation for Determining the Seasonal Net Surface Heat Flux Using a Tropical Pacific Ocean Model  

Science Conference Proceedings (OSTI)

The authors present a study for determining the seasonal net surface heat flux over the tropical Pacific Ocean using an adjoint technique. A simple tropical ocean model with thermodynamics is chosen and the seasonal sea surface temperature (SST) ...

Lisan Yu; James J. O'Brien

1995-10-01T23:59:59.000Z

72

Heat flow determinations and implied thermal regime of the Coso...  

Open Energy Info (EERE)

determinations and implied thermal regime of the Coso geothermal area, California Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Proceedings: Heat flow...

73

GEOTEC (Geothermal-Enhanced Ocean Thermal Energy Conversion) engineering concept study  

DOE Green Energy (OSTI)

The project was to provide a conceptual design for a modular state-of-the-art geothermal-enhanced ocean thermal energy conversion (GEOTEC) plant for implementation at a Navy site on Adak Island, Alaska. This report includes the following appendices: (1) statement of work; (2) geothermal resource assessment; (3) assessment of environmental issues; (4) design optimization program formulations for GEOTEC; (5) calculation of geofluid temperature drop in brine collection system; (6) pressure losses and pumping requirements for seawater pipeline system; (7) geocost comparison of single and dual binary cycle systems; (8) description of seawater pipeline system; and (9) plant system installed cost estimates. (ACR)

Not Available

1984-03-01T23:59:59.000Z

74

The effect of biofouling in simulated Ocean Thermal Energy Conversion (OTEC) evaporator tubes at a potential site in Puerto Rico  

SciTech Connect

Since 29 January 1980, continuous flow of ocean surface water has been maintained through simulated Ocean Thermal Energy Conversion (OTEC) evaporator tubes in order to determine in situ, long-term effects of microbiofouling on heat exchanger efficiency. The experimental apparatus consists of two aluminum and two titanium modules mounted on a research platform moored at the potential OTEC site off Punta Tuna, Puerto Rico. The fouling resistance (R /SUB f/ ), a relative measure of heat transfer efficiency, is being monitored regularly, and the units have been cleaned four times. Postcleaning fouling rates (dR /SUB f/ /dt) for the aluminum units have not changed significantly but are considerably higher than the initial fouling rates. At first, post-cleaning fouling rates for the titanium units were less than for the aluminum units, but this value has been progressively increasing and now all units are fouling at approximately the same rate. Cleaning with manually operated M.A.N. brushes did not reduce R /SUB f/ to zero. On four occasions, flow velocity through the units has been increased. Results from these experiments suggest that initially the fouling layer is easily dislodged from the tube surface but that, with time, it becomes more firmly attached.

Sasscer, D.S.; Morgan, T.O.; Tosteson, T.R.

1980-12-01T23:59:59.000Z

75

Selected legal and institutional issues related to Ocean Thermal Energy Conversion (OTEC) development  

DOE Green Energy (OSTI)

Ocean Thermal Energy Conversion (OTEC), an attractive alternative to traditional energy sources, is still in the early stages of development. To facilitate OTEC commercialization, it is essential that a legal and institutional framework be designed now so as to resolve uncertainties related to OTEC development, primarily involving jurisdictional, regulatory, and environmental issues. The jurisdictional issues raised by OTEC use are dependent upon the site of an OTEC facility and its configuration; i.e., whether the plant is a semipermanent fixture located offshore or a migrating plant ship that provides a source of energy for industry at sea. These issues primarily involve the division of authority between the Federal Government and the individual coastal states. The regulatory issues raised are largely speculative: they involve the adaptation of existing mechanisms to OTEC operation. Finally, the environmental issues raised center around compliance with the National Environmental Policy Act (NEPA) as well as international agreements. 288 references.

Nanda, V. P.

1979-06-01T23:59:59.000Z

76

Remote-sensing reflectance determinations in the coastal ocean environment: impact of  

E-Print Network (OSTI)

Remote-sensing reflectance determinations in the coastal ocean environment: impact of instrumental the potential impact of instrumental characteristics and environmental variability on shipboard remote-sensing above the sea surface by 8­18%, and remote-sensing reflectance by 12­24%. Variations in radio- metric

Siegel, David A.

77

Determination of Vertical Thermal Structure from Sea Surface Temperature  

Science Conference Proceedings (OSTI)

A recently developed parametric model by P. C. Chu et al. is used in this paper for determining subsurface thermal structure from satellite sea surface temperature observations. Based on a layered structure of temperature fields (mixed layer, ...

Peter C. Chu; Chenwu Fan; W. Timothy Liu

2000-07-01T23:59:59.000Z

78

Ocean Thermal Energy Conversion power system development. Phase I: preliminary design. Final report  

DOE Green Energy (OSTI)

Westinghouse has completed the Preliminary Design Phase for the Power System Development of the Ocean Thermal Energy Conversion (OTEC) Demonstration Plant project. This study included the development of a preliminary design for a Modular Application scaled power system (10MWe) and Heat Exchanger Test Articles, both based on the concept developed in the Conceptual Design Phase. The results of this study were used to improve the baseline design of the 50MWe module for the Commercial Size Power System, which was recommended for the demonstration plant by the conceptual design study. The 50MWe module was selected since it has the lowest cost, and since its size convincingly demonstrates that future economically viable commercial plants, having reliable operation with credible anticipated costs, are possible. Additional optimization studies on the size of the power system plus hull continue to identify 50MWe as the preferred minimum cost configuration. This study was limited to a closed cycle ammonia power system module, using a seawater temperature difference of 40/sup 0/F, and a surface platform/ship reference hull. This volume describes system operation, a complete test program to verify mechanical reliability and thermal performance, fabrication and installation operations, and a cost analysis. (WHK)

Not Available

1978-12-04T23:59:59.000Z

79

Development of plastic heat exchangers for ocean thermal energy conversion. Final report, August 1976--December 1978  

DOE Green Energy (OSTI)

Materials and processes have been selected and design information obtained for plastic ocean thermal energy conversion (OTEC) heat exchangers as the result of a program comprising five types of laboratory experiments. Tests to evaluate the chemical resistance of seven commercially available thermoplastics to sea water and several possible working fluids were conducted with emphasis placed on compatibility with ammonia. Environmental rupture tests involving exposure of stressed specimens to sea water or liquid ammonia indicated that the high density polyethylene (HDPE) is the best suited candidate and produced an extrapolated 100,000 hour failure stress of 1060 psi for HDPE. Long term durability tests of extruded HDPE plate-tube panel confirmed that plastic heat transfer surface is mechanically reliable in an OTEC environment. Thermal conductivity measurements of acetylene black filled HDPE indicated that conductivity may be increased by 50% with a 35% by weight filler loading. The permeability coefficient measured for liquid ammonia through HDPE was higher than previous estimates. Test showed that the rate can be significantly reduced by sulfonation of HDPE. A review of biofouling mechanisms revealed that the permeable nature of the plastic heat exchanger surface may be used to control primary biofouling form formation by allowing incorporation of non-toxic organic repellents into the plastic. A preliminary design and fabrication development program suggests that construction of an ammonia condenser test unit is feasible using currently available materials and manufacturing techniques.

Hart, G.K.; Lee, C.O.; Latour, S.R.

1979-01-01T23:59:59.000Z

80

Ocean Thermal Energy Conversion power system development. Phase I. Final report  

DOE Green Energy (OSTI)

This report covers the conceptual and preliminary design of closed-cycle, ammonia, ocean thermal energy conversion power plants by Westinghouse Electric Corporation. Preliminary designs for evaporator and condenser test articles (0.13 MWe size) and a 10 MWe modular experiment power system are described. Conceptual designs for 50 MWe power systems, and 100 MWe power plants are also descirbed. Design and cost algorithms were developed, and an optimized power system design at the 50 MWe size was completed. This design was modeled very closely in the test articles and in the 10 MWe Modular Application. Major component and auxiliary system design, materials, biofouling, control response, availability, safety and cost aspects are developed with the greatest emphasis on the 10 MWe Modular Application Power System. It is concluded that all power plant subsystems are state-of-practice and require design verification only, rather than continued research. A complete test program, which verifies the mechanical reliability as well as thermal performance, is recommended and described.

Not Available

1978-12-04T23:59:59.000Z

Note: This page contains sample records for the topic "determination ocean thermal" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


81

Energy Basics: Ocean Resources  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

Energy Basics Renewable Energy Printable Version Share this resource Biomass Geothermal Hydrogen Hydropower Ocean Ocean Thermal Energy Conversion Tidal Energy Wave Energy...

82

Ocean | Open Energy Information  

Open Energy Info (EERE)

Jump to: navigation, search TODO: Add description Related Links List of Ocean Thermal Incentives Retrieved from "http:en.openei.orgwindex.php?titleOcean&oldid273467"...

83

CX-000916: Categorical Exclusion Determination | Department of...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Exclusion Determination CX-000916: Categorical Exclusion Determination Ocean Thermal Extractable Energy Visualization CX(s) Applied: A9 Date: 02252010 Location(s):...

84

Ocean Thermal Extractable Energy Visualization- Final Technical Report on Award DE-EE0002664. October 28, 2012  

DOE Green Energy (OSTI)

The Ocean Thermal Extractable Energy Visualization (OTEEV) project focuses on assessing the Maximum Practicably Extractable Energy (MPEE) from the world's ocean thermal resources. MPEE is defined as being sustainable and technically feasible, given today's state-of-the-art ocean energy technology. Under this project the OTEEV team developed a comprehensive Geospatial Information System (GIS) dataset and software tool, and used the tool to provide a meaningful assessment of MPEE from the global and domestic U.S. ocean thermal resources. The OTEEV project leverages existing NREL renewable energy GIS technologies and integrates extractable energy estimated from quality-controlled data and projected optimal achievable energy conversion rates. Input data are synthesized from a broad range of existing in-situ measurements and ground-truthed numerical models with temporal and spatial resolutions sufficient to reflect the local resource. Energy production rates are calculated for regions based on conversion rates estimated for current technology, local energy density of the resource, and sustainable resource extraction. Plant spacing and maximum production rates are then estimated based on a default plant size and transmission mechanisms. The resulting data are organized, displayed, and accessed using a multi-layered GIS mapping tool, http://maps.nrel.gov/mhk_atlas with a user-friendly graphical user interface.

Ascari, Matthew B.; Hanson, Howard P.; Rauchenstein, Lynn; Van Zwieten, James; Bharathan, Desikan; Heimiller, Donna; Langle, Nicholas; Scott, George N.; Potemra, James; Nagurny, N. John; Jansen, Eugene

2012-10-28T23:59:59.000Z

85

Seasonal Prediction of Thermal Stress Accumulation for Coral Bleaching in the Tropical Oceans  

Science Conference Proceedings (OSTI)

Mass coral bleaching, associated with anomalously warm ocean temperatures over large regions, poses a serious threat to the future health of the world coral reef systems. Seasonal forecasts from coupled ocean–atmosphere models can be a valuable ...

C. M. Spillman; O. Alves; D. A. Hudson

2011-02-01T23:59:59.000Z

86

Power system development: Ocean Thermal Energy Conversion (OTEC). Preliminary design report: appendices, Part 2 (Final)  

DOE Green Energy (OSTI)

The objective of this project is the development of a preliminary design for a full-sized, closed cycle, ammonia power system module for the 100 MWe OTEC demonstration plant. In turn, this demonstration plant is to demonstrate, by 1984, the operation and performance of an Ocean Thermal Power Plant having sufficiently advanced heat exchanger design to project economic viability for commercial utilization in the late 1980's and beyond. Included in this power system development are the preliminary designs for a proof-of-concept pilot plant and test article heat exchangers which are scaled in such a manner as to support a logically sequential, relatively low-cost development of the full-scale power system module. The conceptual designs are presented for the demonstration plant power module, the proof-of-concept pilot plant, and for a pair of test article heat exchangers. Costs associated with the design, development, fabrication, checkout, delivery, installation, and operation are included. The accompanying design and producibilty studies on the full-scale power system module project the performance/economics for the commercial plant. This section of the report contains appendices on the electrical system, instrumentation and control, ammonia pump evaluation study, ammonia and nitrogen support subsystems, piping and support design calculations, and plant availability. (WHK)

None

1978-12-04T23:59:59.000Z

87

Concurrent studies of enhanced heat transfer and materials for ocean thermal exchangers. Progress report  

DOE Green Energy (OSTI)

Aluminum alloys 1100, 3003, 5052, and 6063 were examined for their compatibility with the proposed working fluids for Ocean Thermal Energy Conversion (OTEC), anhydrous ammonia, Freon 22 and propane, and mixtures of these with sea water. Such mixtures would occur if leaks develop in evaporator or condenser heat exchangers. These aluminum alloys are compatible with the anhydrous working fluids. In ammonia-sea water solutions only limited general corrosion is found in 0 to 30 percent ammonia, no corrosion in 30 to 90 percent ammonia, and ''self limiting'' pits in 90 to 100 percent ammonia so rapid deterioration of the exchangers would not occur. No corrosion was observed in sea water saturated with Freon 22 or propane. No differences in alloy performance were evident in any of these tests so selection can be made on the basis of compatibility with sea water. A review of the available literature indicates that 5052 shows the best performance in surface sea water followed by 1100, 3003 and then 6063 alloy. In deep sea water only 5052 and 1100 alloys appear suitable although more data is required. In both surface and deep sea waters, alcladding offers the best protection against tube perforation; few instances of penetration into the core alloy have been observed for the alclad alloys examined in this study.

Bonewitz, R.A.

1976-10-29T23:59:59.000Z

88

Ocean thermal energy conversion (OTEC) power system development. Preliminary design report, Appendices, Part 1 (Final)  

DOE Green Energy (OSTI)

The objective of this project is the development of a preliminary design for a full-sized, closed cycle, ammonia power system module for the 100 MWe OTEC demonstration plant. In turn, this demonstration plant is to demonstrate, by 1984, the operation and performance of an Ocean Thermal Power Plant having sufficiently advanced heat exchanger design to project economic viability for commercial utilization in the late 1980's and beyond. Included in this power system development are the preliminary designs for a proof-of-concept pilot plant and test article heat exchangers which are scaled in such a manner as to support a logically sequential, relatively low-cost development of the full-scale power system module. The conceptual designs are presented for the demonstration plant power module, the proof-of-concept pilot plant, and for a pair of test article heat exchangers. Costs associated with the design, development, fabrication, checkout, delivery, installation, and operation are included. The accompanying design and producibilty studies on the full-scale power system module project the performance/economics for the commercial plant. This section of the report contains appendices on the developed computer models, water system dynamic studies, miscellaneous performance analysis, materials and processes, detailed equipment lists, turbine design studies, tube cleaner design, ammonia leak detection, and heat exchanger design supporting data. (WHK)

Not Available

1978-12-04T23:59:59.000Z

89

Ocean Thermal Energy Conversion power system development. Phase I: preliminary design. Final report  

DOE Green Energy (OSTI)

Westinghouse has completed the Preliminary Desigh Phase for the Power System Development of the Ocean Thermal Energy Conversion (OTEC) Demonstration Plant project. This study included the development of a preliminary design for a Modular Application scaled power system (10MWe) and Heat Exchanger Test Articles, both based on the concept developed in the Conceptual Design Phase. The results of this study were used to improve the baseline design of the 50MWe module for the Commercial Size Power System, which was recommended for the demonstration plant by the conceptual design study. The 50MWe module was selected since it has the lowest cost, and since its size convincingly demonstrates that future economically viable commercial plants, having reliable operation with credible anticipated costs, are possible. Additional optimization studies on the size of the power system plus hull continue to identify 50MWe as the preferred minimum cost configuration. This study was limited to a closed cycle ammonia power system module, using a seawater temperature difference of 40/sup 0/F, and a surface platform/ship reference hull. This volume presents the preliminary design configuration and system optimization. (WHK)

Not Available

1978-12-04T23:59:59.000Z

90

On the Role of Interior Mixing and Air-Sea Fluxes in Determining the Stratification and Circulation of the Oceans  

Science Conference Proceedings (OSTI)

The problem of determining the (eastern boundary) basic stratification and the buoyancy-driven circulation of the oceans is addressed. A global integral constraint relating the interior stratification and the air-sea heat fluxes is derived, based ...

Eli Tziperman

1986-04-01T23:59:59.000Z

91

How Much Predictive Skill Is Contained in the Thermal Structure of an Oceanic GCM?  

Science Conference Proceedings (OSTI)

The time history of upper-ocean temperatures in the tropical Pacific has been used as a predictor in a statistical prediction scheme to forecast SST anomalies in this region. The temperature variations were taken from the output of an oceanic ...

Mojib Latif; Nicholas E. Graham

1992-08-01T23:59:59.000Z

92

The Basic Effects of Atmosphere–Ocean Thermal Coupling on Midlatitude Variability  

Science Conference Proceedings (OSTI)

Starting from the assumption that the atmosphere is the primary source of variability internal to the midlatitude atmosphere–ocean system on intraseasonal to interannual timescales, the authors construct a simple stochastically forced, one-...

Joseph J. Barsugli; David S. Battisti

1998-02-01T23:59:59.000Z

93

Method for determining thermal conductivity and thermal capacity per unit volume of earth in situ  

DOE Patents (OSTI)

A method for determining the thermal conductivity of the earth in situ is based upon a cylindrical probe (10) having a thermopile (16) for measuring the temperature gradient between sets of thermocouple junctions (18 and 20) of the probe after it has been positioned in a borehole and has reached thermal equilibrium with its surroundings, and having means (14) for heating one set of thermocouple junctions (20) of the probe at a constant rate while the temperature gradient of the probe is recorded as a rise in temperature over several hours (more than about 3 hours). A fluid annulus thermally couples the probe to the surrounding earth. The recorded temperature curves are related to the earth's thermal conductivity, k.sub..infin., and to the thermal capacity per unit volume, (.gamma.c.sub.p).sub..infin., by comparison with calculated curves using estimates of k.sub..infin. and (.gamma.c.sub.p).sub..infin. in an equation which relates these parameters to a rise in the earth's temperature for a known and constant heating rate.

Poppendiek, Heinz F. (LaJolla, CA)

1982-01-01T23:59:59.000Z

94

Energy Basics: Ocean Energy Technologies  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

Energy Basics Renewable Energy Printable Version Share this resource Biomass Geothermal Hydrogen Hydropower Ocean Ocean Thermal Energy Conversion Tidal Energy Wave Energy...

95

Ocean thermal energy conversion preliminary data report for the November 1977 GOTEC-02 cruise to the Gulf of Mexico Mobile Site  

DOE Green Energy (OSTI)

This is the second in a series of preliminary data reports from cruises to potential Ocean Thermal Energy Conversion (OTEC) sites in the Gulf of Mexico. The data are from the GOTEC-02 cruise to a site at approximately 29/sup 0/N, 88/sup 0/W, the Mobile Site. Twelve oceanographic stations were visited. Due to bad weather, the results are scanty. The reader will note that much of the data is questionable. Current meter results are presented elsewhere (Molinari, Hazelworth and Ortman, 1979). Determinations of the biomass indicators - chlorophyll a, phaeophytins and adenosine triphosphate - and zooplankton, are presented. Results were generally those that might have been predicted from previous studies in the area.

Not Available

1980-03-01T23:59:59.000Z

96

Determination of thermal parameters of one-dimensional nanostructures through a thermal transient method  

E-Print Network (OSTI)

of heat capacity and thermal conductivity measurements bythe heat pulse method for thermal transport measurements ofG. Speci?c heat and thermal conductivity measurements on

Arriagada, A.; Yu, E. T.; Bandaru, P. R.

2009-01-01T23:59:59.000Z

97

Upper Ocean Thermal Response to Strong Autumnal Forcing of the Northeast Pacific  

Science Conference Proceedings (OSTI)

CASID free-drifting thermistor chain buoys that utilized Service ARGOS positioning and data collection were deployed in the northeast Pacific Ocean in the vicinity of OWS-P in late autumn in both 1980 and 1981 as part of the Storm Transfer and ...

W. G. Large; J. C. McWilliams; P. P. Niiler

1986-09-01T23:59:59.000Z

98

Uncertainty analysis routine for the Ocean Thermal Energy Conversion (OTEC) biofouling measurement device and data reduction procedure. [HTCOEF code  

DOE Green Energy (OSTI)

Biofouling and corrosion of heat exchanger surfaces in Ocean Thermal Energy Conversion (OTEC) systems may be controlling factors in the potential success of the OTEC concept. Very little is known about the nature and behavior of marine fouling films at sites potentially suitable for OTEC power plants. To facilitate the acquisition of needed data, a biofouling measurement device developed by Professor J. G. Fetkovich and his associates at Carnegie-Mellon University (CMU) has been mass produced for use by several organizations in experiments at a variety of ocean sites. The CMU device is designed to detect small changes in thermal resistance associated with the formation of marine microfouling films. An account of the work performed at the Pacific Northwest Laboratory (PNL) to develop a computerized uncertainty analysis for estimating experimental uncertainties of results obtained with the CMU biofouling measurement device and data reduction scheme is presented. The analysis program was written as a subroutine to the CMU data reduction code and provides an alternative to the CMU procedure for estimating experimental errors. The PNL code was used to analyze sample data sets taken at Keahole Point, Hawaii; St. Croix, the Virgin Islands; and at a site in the Gulf of Mexico. The uncertainties of the experimental results were found to vary considerably with the conditions under which the data were taken. For example, uncertainties of fouling factors (where fouling factor is defined as the thermal resistance of the biofouling layer) estimated from data taken on a submerged buoy at Keahole Point, Hawaii were found to be consistently within 0.00006 hr-ft/sup 2/-/sup 0/F/Btu, while corresponding values for data taken on a tugboat in the Gulf of Mexico ranged up to 0.0010 hr-ft/sup 2/-/sup 0/F/Btu. Reasons for these differences are discussed.

Bird, S.P.

1978-03-01T23:59:59.000Z

99

The Role of Eddies in Determining the Structure and Response of the Wind-Driven Southern Hemisphere Overturning: Results from the Modeling Eddies in the Southern Ocean (MESO) Project  

Science Conference Proceedings (OSTI)

The Modeling Eddies in the Southern Ocean (MESO) project uses numerical sensitivity studies to examine the role played by Southern Ocean winds and eddies in determining the density structure of the global ocean and the magnitude and structure of ...

Robert Hallberg; Anand Gnanadesikan

2006-12-01T23:59:59.000Z

100

Ocean Energy Technologies  

Energy.gov (U.S. Department of Energy (DOE))

Oceans cover more than 70% of the Earth's surface. As the world's largest solar collectors, oceans contain thermal energy from the sun and produce mechanical energy from tides and waves. Even...

Note: This page contains sample records for the topic "determination ocean thermal" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


101

Ocean thermal energy conversion power system development-I. Phase I. Preliminary design report. Volume 1. Final report  

DOE Green Energy (OSTI)

The results of a conceptual and preliminary design study of Ocean Thermal Energy Conversion (OTEC) closed loop ammonia power system modules performed by Lockheed Missiles and Space Company, Inc. (LMSC) are presented. This design study is the second of 3 tasks in Phase I of the Power System Development-I Project. The Task 2 objectives were to develop: 1) conceptual designs for a 40 to 50-MW(e) closed cycle ammonia commercial plant size power module whose heat exchangers are immersed in seawater and whose ancillary equipments are in a shirt sleeve environment; preliminary designs for a modular application power system sized at 10-MW(e) whose design, construction and material selection is analogous to the 50 MW(e) module, except that titanium tubes are to be used in the heat exchangers; and 3) preliminary designs for heat exchanger test articles (evaporator and condenser) representative of the 50-MW(e) heat exchangers using aluminum alloy, suitable for seawater service, for testing on OTEC-1. The reference ocean platform was specified by DOE as a surface vessel with the heat exchanger immersed in seawater to a design depth of 0 to 20 ft measured from the top of the heat exchanger. For the 50-MW(e) module, the OTEC 400-MW(e) Plant Ship, defined in the Platform Configuration and Integration study, was used as the reference platform. System design, performance, and cost are presented. (WHK)

Not Available

1978-12-18T23:59:59.000Z

102

Ocean dynamics and thermodynamics in the tropical Indo- Pacific region  

E-Print Network (OSTI)

II Observations of the 2004 and 2006 Indian OceanOceans . . . . . . . . . . . . . . . . . . . . . . . . . . . . .magnitudes determined from ocean-bottom pressure gauge data

Drushka, Kyla

2011-01-01T23:59:59.000Z

103

A Two-Level Model of a Thermally Forced Ocean Basin  

Science Conference Proceedings (OSTI)

Some simple solutions (mostly analytic) are presented for the large-scale baroclinic response to thermal forcing on a mid-latitude beta-plane. Surface heat flux is parameterized as (TA–TT)/tau;, with atmospheric temperature TA prescribed as a ...

M. K. Davey

1983-02-01T23:59:59.000Z

104

On Haney-Type Surface Thermal Boundary Conditions for Ocean Circulation Models  

Science Conference Proceedings (OSTI)

Haney-type surface thermal boundary conditions linearly connect net downward surface heat flux Q to air–sea temperature difference (gradient-type condition) ?T1 or to climate/synoptic sea temperature difference (restoring-type condition) ?T2 by a ...

Peter C. Chu; Yuchun Chen; Shihua Lu

1998-05-01T23:59:59.000Z

105

A Model of Sea Level Rise Caused by Ocean Thermal Expansion  

Science Conference Proceedings (OSTI)

Warming of the atmosphere as a result of an increased concentration of greenhouse gases is expected to lead to a significant rise is global sea level. We present estimates of the component of this sea level rise caused by thermal expansion of the ...

John A. Church; J. Stuart Godfrey; David R. Jackett; Trevor J. McDougall

1991-04-01T23:59:59.000Z

106

Phase 1: conceptual design. Ocean thermal energy conversion power system development. Volume 2 of 3. Technical details. Final report  

DOE Green Energy (OSTI)

Westinghouse has completed the conceptual design of the Power System for the Ocean Thermal Energy Conversion (OTEC) Demonstration Plant project. This study included the development of a conceptual design for the following three items: first, a full-size power system module for the 100 MWe Demonstration Plant; second, a scaled proof of concept power system; and third, a heat exchanger test article. The study was limited to a closed cycle ammonia power system module, using a water temperature difference of 40/sup 0/F., and a surface platform/ship reference hull. Two power module of 50 MWe each are recommended for the demonstration plant. The 50 MWe module was selected since it has the lowest cost, and since it is of a size which convincingly demonstrates that future economically viable commercial plants, having reliable operation with credible anticipated costs, are possible. A modular, tube bundle approach to heat exchanger design makes large heat exchangers practical and economical. Other power module elements are considered to be within state-of-practice. Technological assessments of all subsystems indicate requirements for verification only, rather than continued research. A complete test program, which will verify the mechanical reliability as well as thermal performance, is recommended.

Not Available

1978-01-30T23:59:59.000Z

107

Pacific Ocean Contribution to the Asymmetry in Eastern Indian Ocean Variability  

Science Conference Proceedings (OSTI)

Variations in eastern Indian Ocean upper-ocean thermal properties are assessed for the period 1970–2004, with a particular focus on asymmetric features related to opposite phases of Indian Ocean dipole events, using high-resolution ocean model ...

Caroline C. Ummenhofer; Franziska U. Schwarzkopf; Gary Meyers; Erik Behrens; Arne Biastoch; Claus W. Böning

2013-02-01T23:59:59.000Z

108

Assimilation of Subsurface Thermal Data into a Simple Ocean Model for the Initialization of an Intermediate Tropical Coupled Ocean-Atmosphere Forecast Model  

Science Conference Proceedings (OSTI)

An adjoint variational assimilation technique is used to assimilate observations of both the oceanic state and wind stress data into an intermediate coupled ENSO prediction model. This method of initialization is contrasted with the more usual ...

Richard Kleeman; Andrew M. Moore; Neville R. Smith

1995-10-01T23:59:59.000Z

109

Upper-Ocean Thermal Structure and the Western North Pacific Category 5 Typhoons. Part II: Dependence on Translation Speed  

Science Conference Proceedings (OSTI)

Using new in situ ocean subsurface observations from the Argo floats, best-track typhoon data from the U.S. Joint Typhoon Warning Center, an ocean mixed layer model, and other supporting datasets, this work systematically explores the ...

I-I. Lin; Iam-Fei Pun; Chun-Chieh Wu

2009-11-01T23:59:59.000Z

110

Inverse Modeling for Determination of Thermal Properties of the ...  

Science Conference Proceedings (OSTI)

Thermal properties of ceramic shell depend on shell composition and fabrication ... Mathematical Modeling of a Compressible Oxygen Jet Interacting with a Free ... Multi-Physics Modeling of Molten Salt Transport in Solid Oxide Membrane ...

111

Conceptual design of an open-cycle ocean thermal energy conversion net power-producing experiment (OC-OTEC NPPE)  

DOE Green Energy (OSTI)

This report describes the conceptual design of an experiment to investigate heat and mass transfer and to assess the viability of open-cycle ocean thermal energy conversion (OC-OTEC). The experiment will be developed in two stages, the Heat- and Mass-Transfer Experimental Apparatus (HMTEA) and the Net Power-Producing Experiment (NPPE). The goal for the HMTEA is to test heat exchangers. The goal for the NPPE is to experimentally verify OC-OTEC's feasibility by installing a turbine and testing the power-generating system. The design effort met the goals of both the HMTEA and the NPPE, and duplication of hardware was minimal. The choices made for the design resource water flow rates are consistent with the availability of cold and warm seawater as a result of the seawater systems upgrade carried out by the US Department of Energy (DOE), the state of Hawaii, and the Pacific International Center for High Technology Research. The choices regarding configuration of the system were made based on projected performance, degree of technical risk, schedule, and cost. The cost for the future phase of the design and the development of the HMTEA/NPPE is consistent with the projected future program funding levels. The HMTEA and NPPE were designed cooperatively by PICHTR, Argonne National Laboratory, and Solar Energy Research Institute under the guidance of DOE. The experiment will be located at the DOE's Seacoast Test Facility at the Natural Energy Laboratory of Hawaii, Kailua-Kona, Hawaii. 71 refs., 41 figs., 34 tabs.

Bharathan, D.; Green, H.J.; Link, H.F.; Parsons, B.K.; Parsons, J.M.; Zangrando, F.

1990-07-01T23:59:59.000Z

112

Study of domestic social and economic impacts of ocean thermal energy conversion (OTEC) commercial development. Volume II. Industry profiles  

DOE Green Energy (OSTI)

Econoimc profiles of the industries most affected by the construction, deployment, and operation of Ocean Thermal Energy Conversion (OTEC) powerplants are presented. Six industries which will contribute materials and/or components to the construction of OTEC plants have been identified and are profiled here. These industries are: steel industry, concrete industry, titanium metal industry, fabricated structural metals industry, fiber glass-reinforced plastics industry, and electrical transmission cable industry. The economic profiles for these industries detail the industry's history, its financial and economic characteristics, its technological and production traits, resource constraints that might impede its operation, and its relation to OTEC. Some of the historical data collected and described in the profile include output, value of shipments, number of firms, prices, employment, imports and exports, and supply-demand forecasts. For most of the profiled industries, data from 1958 through 1980 were examined. In addition, profiles are included on the sectors of the economy which will actualy construct, deploy, and supply the OTEC platforms.

None

1981-12-22T23:59:59.000Z

113

Ocean thermal energy conversion gas desorption studies. Volume 1. Design of experiments. [Open-cycle power systems  

Science Conference Proceedings (OSTI)

Seawater deaeration is a process affecting almost all proposed Ocean Thermal Energy Conversion (OTEC) open-cycle power systems. If the noncondensable dissolved air is not removed from a power system, it will accumulate in thecondenser, reduce the effectiveness of condensation, and result in deterioration of system performance. A gas desorption study is being conducted at Oak Ridge National Laboratory (ORNL) with the goal of mitigating these effects; this study is designed to investigate the vacuum deaeration process for low-temperature OTEC conditions where conventional steam stripping deaeration may not be applicable. The first in a series describing the ORNL studies, this report (1) considers the design of experiments and discusses theories of gas desorption, (2) reviews previous relevant studies, (3) describes the design of a gas desorption test loop, and (4) presents the test plan for achieving program objectives. Results of the first series of verification tests and the uncertainties encountered are also discussed. A packed column was employed in these verification tests and test data generally behaved as in previous similar studies. Results expressed as the height of transfer unit (HTU) can be correlated with the liquid flow rate by HTU = 4.93L/sup 0/ /sup 25/. End effects were appreciable for the vacuum deaeration system, and a correlation of them to applied vacuum pressure was derived.

Golshani, A.; Chen, F.C.

1980-10-01T23:59:59.000Z

114

Marine pastures: a by-product of large (100 megawatt or larger) floating ocean-thermal power plants. Final report  

DOE Green Energy (OSTI)

The potential biological productivity of an open-sea mariculture system utilizing the deep-sea water discharged from an ocean-thermal energy conversion (OTEC) plant was investigated. In a series of land-based studies, surface water was used to inoculate deep water and the primary production of the resultant blooms was investigated. Each cubic meter of deep water can produce approximately 2.34 g of phytoplankton protein, and that an OTEC plant discharging deep water at a rate of 4.5 x 10/sup 4/ m/sup 3/ min/sup -1/ could produce 5.3 x 10/sup 7/ kg of phytoplankton protein per 350-day year. A series of land-based shellfish studies indicated that, when fed at a constant rate of 1.83 x 10/sup -3/ g of protein per second per 70-140 g of whole wet weight, the clam, Tapes japonica, could convert the phytoplankton protein-nitrogen into shellfish meat protein-nitrogen with an efficiency of about 33 per cent. Total potential wet meat weight production from an OTEC plant pumping 4.5 x 10/sup 4/ m/sup 3/ min/sup -1/ is approximately 4.14 x 10/sup 8/ kg for a 350-day year. Various factors affecting the feasibility of open-sea mariculture are discussed. It is recommended that future work concentrate on a technical and economic analysis. (WDM)

Laurence, S.; Roels, O.A.

1976-08-31T23:59:59.000Z

115

Results of scoping tests for open-cycle OTEC (ocean thermal energy conversion) components operating with seawater  

DOE Green Energy (OSTI)

This report presents comprehensive documentation of the experimental research conducted on open-cycle ocean thermal energy conversion (OC-OTEC) components operating with seawater as a working fluid. The results of this research are presented in the context of previous analysis and fresh-water testing; they provide a basis for understanding and predicting with confidence the performance of all components of an OC-OTEC system except the turbine. Seawater tests have confirmed the results that were obtained in fresh-water tests and predicted by the analytical models of the components. A sound technical basis has been established for the design of larger systems in which net power will be produced for the first time from OC-OTEC technology. Design and operation of a complete OC-OTEC system that produces power will provide sufficient confidence to warrant complete transfer of OC-OTEC technology to the private sector. Each components performance is described in a separate chapter written by the principal investigator responsible for technical aspects of the specific tests. Chapters have been indexed separately for inclusion on the data base.

Zangrando, F; Bharathan, D; Green, H J; Link, H F; Parsons, B K; Parsons, J M; Pesaran, A A [Solar Energy Research Inst., Golden, CO (USA); Panchal, C B [Argonne National Lab., IL (USA)

1990-09-01T23:59:59.000Z

116

Method to determine thermal profiles of nanoscale circuitry  

DOE Patents (OSTI)

A platform that can measure the thermal profiles of devices with nanoscale resolution has been developed. The system measures the local temperature by using an array of nanoscale thermometers. This process can be observed in real time using a high resolution imagining technique such as electron microscopy. The platform can operate at extremely high temperatures.

Zettl, Alexander K; Begtrup, Gavi E

2013-04-30T23:59:59.000Z

117

Conceptual design of ocean thermal energy conversion (OTEC) power plants in the Philippines  

SciTech Connect

Extensive temperature readings were obtained to determine suitable OTEC power plant sites in the Philippines. An analysis of temperature profiles reveals that surface seawater is in the range of 25 to 29{degree}C throughout the year while seawater at 500 to 700 m depth remains at a low temperature of 8 to 4{degree}C, respectively. In this article, 14 suitable sites within the Philippine seas are suggested. Conceptual designs for a 5-MW onland-type and a 25-MW floating-type OTEC power plant are proposed. Optimum conditions are determined and plant specifications are computed. Cost estimates show that a floating-type 25-MW OTEC power plant can generate electricity at a busbar power cost of 5.33 to 7.57 cents/kW {times} h while an onshore type 5-MW plant can generate electricity at a busbar cost of 14.71 to 18.09 cents/kW {times} h.

Haruo Uehara; Dilao, C.O.; Tsutomu Nakaoka (Saga Univ. (Japan))

1988-01-01T23:59:59.000Z

118

Diagnostic Model of the Three-Dimensional Circulation in the Upper Equatorial Pacific Ocean  

Science Conference Proceedings (OSTI)

To investigate the processes that maintain the large-scale, annual-average thermal structure of the equatorial Pacific, the three-dimensional ocean circulation for a large area is determined from a diagnostic model applied to repeated, meridional ...

Harry L. Bryden; Esther C. Brady

1985-10-01T23:59:59.000Z

119

The Effect of Salinity on the Wind-Driven Circulation and the Thermal Structure of the Upper Ocean  

Science Conference Proceedings (OSTI)

Studies of the effect of a freshening of the surface waters in high latitudes on the oceanic circulation have thus far focused almost entirely on the deep thermohaline circulation and its poleward heat transport. Here it is demonstrated, by means ...

A. V. Fedorov; R. C. Pacanowski; S. G. Philander; G. Boccaletti

2004-09-01T23:59:59.000Z

120

On the Nature and Causes of Large-Scale Thermal Variability in the Central North Pacific Ocean  

Science Conference Proceedings (OSTI)

Long-range Naval aircraft using AXBT's obtained meridional temperature sections from the central Pacific Ocean along 158 and 170°W between 30 and 50°N at approximately monthly intervals between November 1974 and April 1977 (29 months). Analyses ...

T. P. Barnett

1981-07-01T23:59:59.000Z

Note: This page contains sample records for the topic "determination ocean thermal" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


121

Heat flow determinations and implied thermal regime of the Coso geothermal  

Open Energy Info (EERE)

determinations and implied thermal regime of the Coso geothermal determinations and implied thermal regime of the Coso geothermal area, California Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Proceedings: Heat flow determinations and implied thermal regime of the Coso geothermal area, California Details Activities (1) Areas (1) Regions (0) Abstract: Obvious surface manifestations of an anomalous concentration of geothermal energy at the Coso Geothermal Area, California, include fumarolic activity, active hot springs, and associated hydrothermally altered rocks. Abundant Pleistocene volcanic rocks, including a cluster of thirty-seven rhyolite domes, occupy a north-trending structural and topographic ridge near the center of an oval-shaped zone of late Cenozoic ring faulting. In an investigation of the thermal regime of the geothermal

122

Ocean thermal energy conversion ecological data report from OSS Researcher in Gulf of Mexico, (GOTEC-01), July 12-23, 1977  

DOE Green Energy (OSTI)

Ecological measurements important for environmental assessment of the effect of an operating Ocean Thermal Energy Conversion plant were initiated in July 1977 at the proposed Gulf of Mexico site off the coasts of Louisiana, Mississippi, Alabama and Florida. The initial cruise of the OSS Researcher, in a joint effort with the Atlantic Oceanic and Meteorological Laboratories (AOML) of the National Oceanic and Atmospheric Administration (NOAA), and Lawrence Berkeley Laboratory (LBL) took place from 12 to 23 July 1977. The measurements were taken at 15 oceanographic stations to a maximum depth of 1000 m. Water was analyzed for trace metals, nutrients and chlorophyll a and ATP. Physical data, salinity and dissolved oxygen measurements were supplied by NOAA-AOML. Two bioassays were carried out using indigenous phytoplankton to estimate the effect of deep water on the rates of /sup 14/CO/sub 2/ uptake of photic zone algae. The Deep Scattering Layer (DSL) was monitored at the site by a continuously recording 12 kHz depth sounder at the Mobile site. This report presents data collected during the cruise.

Quinby-Hunt, M.S. (comp.)

1979-06-01T23:59:59.000Z

123

Structure determination of thermal-spray materials using synchrotron x-ray microtomography  

SciTech Connect

The structure of materials prepared using thermal spray methods is difficult to determine using conventional microscopy of porosimetry methods. The difficulties inherent in these approaches can be circumvented using synchrotron computed microtomography(CMT). An example of the use of CMT to produce a high resolution non- destructive image of a thermal-spray coating is Cr{sub 3}C{sub 2}/NiCr is described here to illustrate the power of this technique.

Spanne, P.; Jones, K.W. [Brookhaven National Lab., Upton, NY (United States); Herman, H. [State Univ. of New York, Stony Brook, NY (United States); Riggs, W.L. [General Electric Co., Cincinnati, OH (United States). Aircraft Engines

1991-12-31T23:59:59.000Z

124

Biomass Determinations of Selected Zooplankters Found in the California Cooperative Oceanic Fisheries Investigations  

E-Print Network (OSTI)

INSTITUTION OF OCEANOGRAPHY BIOMASS DETERMINATIONS OFt h i s study were made by the Biomass Laboratory for simpleused in the preparation of Biomass Charts of t h e C a l i f

Miller, Julian K.

1966-01-01T23:59:59.000Z

125

Short-Term Climatic Variability in the Thermal Structure of the Pacific Ocean during 1979–82  

Science Conference Proceedings (OSTI)

Short-term climatic variability in both sea surface temperature (SST) and vertically averaged temperature over the upper 400 m of ocean (Tav) is mapped over the Pacific from 20°S to 50°N each bimonth for four years from 1979 to 1982, leading up ...

Warren B. White; Gary A. Meyers; Jean Rene Donguy; Stephen E. Pazan

1985-07-01T23:59:59.000Z

126

Energy Basics: Ocean Resources  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

Resources Although the potential for ocean energy technologies is believed to be very large, no comprehensive studies have been conducted to date to determine an accurate resource...

127

Determination of Thermal Contact Conductance of Metal Tabs for Battery Ultrasonic Welding Process  

SciTech Connect

A new experimental apparatus and data analysis algorithm were used to determine the thermal contact conductance between 0.2-mm-thick pure aluminum battery tabs as a function of contact pressure from 3.6 to 14.4 MPa. Specimens were sandwiched between one optically transparent and one infrared (IR) transparent glass windows, and heated up from one side by an intense short pulse of flash light. The temperature transient on the other side was measured by an IR camera. In order to determine the thermal contact conductance, two experiment configurations having different number of Al specimen layers were used. Numerical heat conduction simulations showed that the thermal contact conductance strongly depended on the ratio of the maximum temperature rise between the two configurations. Moreover, this ratio was not sensitive to the uncertainties of other thermal properties. Through the simulation results, a simple correlation between the gap conductance and the ratio was established. Therefore, once the ratio of the temperature rise between two configurations was experimentally measured, the thermal contact conductance could be readily determined from the correlation. The new method was fast and robust. Most importantly, the data analysis algorithm improved the measurement accuracy by considerably reducing the uncertainties associated with the thermophysical properties of materials and measurement system.

Chen, Jian [ORNL; Zhang, Wei [ORNL; Yu, Zhenzhen [ORNL; Feng, Zhili [ORNL

2012-01-01T23:59:59.000Z

128

Bench-scale experimental determination of the thermal diffusivity of crushed tuff  

Science Conference Proceedings (OSTI)

A bench-scale experiment was designed and constructed to determine the effective thermal diffusivity of crushed tuff. Crushed tuff particles ranging from 12.5 mm to 37.5 mm (0.5 in. to 1.5 in.) were used to fill a cylindrical volume of 1.58 m{sup 3} at an effective porosity of 0.48. Two iterations of the experiment were completed; the first spanning approximately 502 hours and the second 237 hours. Temperatures near the axial heater reached 700 degrees C, with a significant volume of the test bed exceeding 100 degrees C. Three post-test analysis techniques were used to estimate the thermal diffusivity of the crushed tuff. The first approach used nonlinear parameter estimation linked to a one dimensional radial conduction model to estimate thermal diffusivity from the first 6 hours of test data. The second method used the multiphase TOUGH2 code in conjunction with the first 20 hours of test data not only to estimate the crushed tuffs thermal diffusivity, but also to explore convective behavior within the test bed. Finally, the nonlinear conduction code COYOTE-II was used to determine thermal properties based on 111 hours of cool-down data. The post-test thermal diffusivity estimates of 5.0 x 10-7 m{sup 2}/s to 6.6 x 10-7 m{sup 2}/s were converted to effective thermal conductivities and compared to estimates obtained from published porosity-based relationships. No obvious match between the experimental data and published relationships was found to exist; however, additional data for other particle sizes and porosities are needed.

Ryder, E.E.; Finley, R.E.; George, J.T.; Ho, C.K.; Longenbaugh, R.S. [Sandia National Labs., Albuquerque, NM (United States); Connolly, J.R. [New Mexico Univ., Albuquerque, NM (United States)

1996-06-01T23:59:59.000Z

129

Ocean Energy Technology Basics | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Ocean Energy Technology Basics Ocean Energy Technology Basics Ocean Energy Technology Basics August 16, 2013 - 4:18pm Addthis Text Version Photo of low waves in the ocean. A dock is visible in the background. Oceans cover more than 70% of the Earth's surface. As the world's largest solar collectors, oceans contain thermal energy from the sun and produce mechanical energy from tides and waves. Even though the sun affects all ocean activity, the gravitational pull of the moon primarily drives tides, and wind powers ocean waves. Learn more about: Ocean Thermal Energy Conversion Tidal Energy Wave Energy Ocean Resources Addthis Related Articles Energy Department Releases New Energy 101 Video on Ocean Power A map generated by Georgia Tech's tidal energy resource database shows mean current speed of tidal streams. The East Coast, as shown above, has strong tides that could be tapped to produce energy. | Photo courtesy of Georgia Institute of Technology

130

Marine pastures: a by-product of large (100 megawatt or larger) floating ocean thermal power plants. Progress report, February 1, 1976--April 30, 1976  

DOE Green Energy (OSTI)

Computer programs have been developed to define the temperature increase which would be needed to bring deep-ocean water into density equilibrium with surface water for locations where data are available. A series of continuous-flow studies on phytoplankton blooms resulting from mixtures of 80 percent deep and 20 percent surface water in 2000-liter concrete culturing vessels (''reactors'') has been completed. A quantitative determination of nutrient utilization and flow through a combined primary and secondary trophic level system has been completed. This study utilized the clam Tapes semidecussata, fed from phytoplankton grown in 80 percent deep and 20 percent surface water. An analysis of the fate of the deep water discharged from a floating OTEC plant indicates that horizontal containment of the resulting deep water: surface water mixture is necessary if conditions optimal for open-sea mariculture are to obtain. The design of a small open-ocean ''pool'' is in the final stages of completion. A combined mussel/oyster/clam system is in the final stages of design and will be placed in the ocean during April 1976. (WDM)

Roels, O.A.

1976-01-01T23:59:59.000Z

131

Marine pastures: a by-product of large (100 megawatt or larger) floating ocean thermal power plants. Progress report, February 1, 1976--April 30, 1976  

SciTech Connect

Computer programs have been developed to define the temperature increase which would be needed to bring deep-ocean water into density equilibrium with surface water for locations where data are available. A series of continuous-flow studies on phytoplankton blooms resulting from mixtures of 80 percent deep and 20 percent surface water in 2000-liter concrete culturing vessels (''reactors'') has been completed. A quantitative determination of nutrient utilization and flow through a combined primary and secondary trophic level system has been completed. This study utilized the clam Tapes semidecussata, fed from phytoplankton grown in 80 percent deep and 20 percent surface water. An analysis of the fate of the deep water discharged from a floating OTEC plant indicates that horizontal containment of the resulting deep water: surface water mixture is necessary if conditions optimal for open-sea mariculture are to obtain. The design of a small open-ocean ''pool'' is in the final stages of completion. A combined mussel/oyster/clam system is in the final stages of design and will be placed in the ocean during April 1976. (WDM)

Roels, O.A.

1976-01-01T23:59:59.000Z

132

Method and apparatus for determining the content and distribution of a thermal neutron absorbing material in an object  

DOE Patents (OSTI)

The disclosure is directed to an apparatus and method for determining the content and distribution of a thermal neutron absorbing material within an object. Neutrons having an energy higher than thermal neutrons are generated and thermalized. The thermal neutrons are detected and counted. The object is placed between the neutron generator and the neutron detector. The reduction in the neutron flux corresponds to the amount of thermal neutron absorbing material in the object. The object is advanced past the neutron generator and neutron detector to obtain neutron flux data for each segment of the object. The object may comprise a space reactor heat pipe and the thermal neutron absorbing material may comprise lithium.

Crane, Thomas W. (Los Alamos, NM)

1986-01-01T23:59:59.000Z

133

Mean and Turbulent Structures of the Oceanic Surface layer as Determined from One-Dimensional, Third-Order Simulations  

Science Conference Proceedings (OSTI)

Various mechanisms that can drive the evolution of the oceanic surface boundary layer (OSBL) are numerically studied using a detailed turbulence-closure scheme. It is shown that stress and shear-driven regions are characterized by relatively poor ...

Jean Claude André; Pierre Lacarrére

1985-02-01T23:59:59.000Z

134

Modeling the Physical and Biochemical Influence of Ocean Thermal Energy Conversion Plant Discharges into their Adjacent Waters  

DOE Green Energy (OSTI)

This paper describes the modeling work by Makai Ocean Engineering, Inc. to simulate the biochemical effects of of the nutrient-enhanced seawater plumes that are discharged by one or several 100 megawatt OTEC plants. The modeling is needed to properly design OTEC plants that can operate sustainably with acceptably low biological impact. In order to quantify the effect of discharge configuration and phytoplankton response, Makai Ocean Engineering implemented a biological and physical model for the waters surrounding O`ahu, Hawai`i, using the EPA-approved Environmental Fluid Dynamics Code (EFDC). Each EFDC grid cell was approximately 1 square kilometer by 20 meters deep, and used a time step of three hours. The biological model was set up to simulate the biochemical response for three classes of organisms: Picoplankton (< 2 um) such as prochlorococccus, nanoplankton (2-20 um), and microplankton (> 20 um) e.g., diatoms. The dynamic biological phytoplankton model was calibrated using chemical and biological data collected for the Hawaii Ocean Time Series (HOTS) project. Peer review of the biological modeling was performed. The physical oceanography model uses boundary conditions from a surrounding Hawai'i Regional Ocean Model, (ROM) operated by the University of Hawai`i and the National Atmospheric and Oceanic Administration. The ROM provided tides, basin scale circulation, mesoscale variability, and atmospheric forcing into the edges of the EFDC computational domain. This model is the most accurate and sophisticated Hawai'ian Regional Ocean Model presently available, assimilating real-time oceanographic observations, as well as model calibration based upon temperature, current and salinity data collected during 2010 near the simulated OTEC site. The ROM program manager peer-reviewed Makai's implementation of the ROM output into our EFDC model. The supporting oceanographic data was collected for a Naval Facilities Engineering Command / Makai project. Results: The model was run for a 100 MW OTEC Plant consisting of four separate ducts, discharging a total combined flow rate of 420 m3/s of warm water and 320 m3/s of cold water in a mixed discharge at 70 meters deep. Each duct was assumed to have a discharge port diameter of 10.5m producing a downward discharge velocity of about 2.18 m/s. The natural system, as measured in the HOTS program, has an average concentration of 10-15 mgC/m3. To calibrate the biological model, we first ran the model with no OTEC plant and varied biological parameters until the simulated data was a good match to the HOTS observations. This modeling showed that phytoplankton concentration were patchy and highly dynamic. The patchiness was a good match with the data variability observed within the HOTS data sets. We then ran the model with simulated OTEC intake and discharge flows and associated nutrients. Directly under the OTEC plant, the near-field plume has an average terminal depth of 172 meters, with a volumetric dilution of 13:1. The average terminal plume temperature was 19.8oC. Nitrate concentrations are 1 to 2 umol/kg above ambient. The advecting plume then further dilutes to less than 1 umol/kg above ambient within a few kilometers downstream, while remaining at depth. Because this terminal near-field plume is well below the 1% light limited depths (~120m), no immediate biological utilization of the nutrients occurs. As the nitrate is advected and dispersed downstream, a fraction of the deep ocean nutrients (< 0.5 umol/kg perturbation) mix upward where they are utilized by the ambient phytoplankton population. This occurs approximately twenty-five kilometers downstream from the plant at 110 - 70 meters depth. For pico-phytoplankton, modeling results indicate that this nutrient perturbation causes a phytoplankton perturbation of approximately 1 mgC/m3 (~10% of average ambient concentrations) that covers an area 10x5 km in size at the 70 to 90m depth. Thus, the perturbations are well within the natural variability of the system, generally corresponding to a 10 to 15% increase above the a

PAT GRANDELLI, P.E.; GREG ROCHELEAU; JOHN HAMRICK, Ph.D.; MATT CHURCH, Ph.D.; BRIAN POWELL, Ph.D.

2012-09-29T23:59:59.000Z

135

Modeling the Physical and Biochemical Influence of Ocean Thermal Energy Conversion Plant Discharges into their Adjacent Waters  

Science Conference Proceedings (OSTI)

This paper describes the modeling work by Makai Ocean Engineering, Inc. to simulate the biochemical effects of of the nutrient-enhanced seawater plumes that are discharged by one or several 100 megawatt OTEC plants. The modeling is needed to properly design OTEC plants that can operate sustainably with acceptably low biological impact. In order to quantify the effect of discharge configuration and phytoplankton response, Makai Ocean Engineering implemented a biological and physical model for the waters surrounding O`ahu, Hawai`i, using the EPA-approved Environmental Fluid Dynamics Code (EFDC). Each EFDC grid cell was approximately 1 square kilometer by 20 meters deep, and used a time step of three hours. The biological model was set up to simulate the biochemical response for three classes of organisms: Picoplankton ( 20 um) e.g., diatoms. The dynamic biological phytoplankton model was calibrated using chemical and biological data collected for the Hawaii Ocean Time Series (HOTS) project. Peer review of the biological modeling was performed. The physical oceanography model uses boundary conditions from a surrounding Hawai'i Regional Ocean Model, (ROM) operated by the University of Hawai`i and the National Atmospheric and Oceanic Administration. The ROM provided tides, basin scale circulation, mesoscale variability, and atmospheric forcing into the edges of the EFDC computational domain. This model is the most accurate and sophisticated Hawai'ian Regional Ocean Model presently available, assimilating real-time oceanographic observations, as well as model calibration based upon temperature, current and salinity data collected during 2010 near the simulated OTEC site. The ROM program manager peer-reviewed Makai's implementation of the ROM output into our EFDC model. The supporting oceanographic data was collected for a Naval Facilities Engineering Command / Makai project. Results: The model was run for a 100 MW OTEC Plant consisting of four separate ducts, discharging a total combined flow rate of 420 m3/s of warm water and 320 m3/s of cold water in a mixed discharge at 70 meters deep. Each duct was assumed to have a discharge port diameter of 10.5m producing a downward discharge velocity of about 2.18 m/s. The natural system, as measured in the HOTS program, has an average concentration of 10-15 mgC/m3. To calibrate the biological model, we first ran the model with no OTEC plant and varied biological parameters until the simulated data was a good match to the HOTS observations. This modeling showed that phytoplankton concentration were patchy and highly dynamic. The patchiness was a good match with the data variability observed within the HOTS data sets. We then ran the model with simulated OTEC intake and discharge flows and associated nutrients. Directly under the OTEC plant, the near-field plume has an average terminal depth of 172 meters, with a volumetric dilution of 13:1. The average terminal plume temperature was 19.8oC. Nitrate concentrations are 1 to 2 umol/kg above ambient. The advecting plume then further dilutes to less than 1 umol/kg above ambient within a few kilometers downstream, while remaining at depth. Because this terminal near-field plume is well below the 1% light limited depths (~120m), no immediate biological utilization of the nutrients occurs. As the nitrate is advected and dispersed downstream, a fraction of the deep ocean nutrients (< 0.5 umol/kg perturbation) mix upward where they are utilized by the ambient phytoplankton population. This occurs approximately twenty-five kilometers downstream from the plant at 110 - 70 meters depth. For pico-phytoplankton, modeling results indicate that this nutrient perturbation causes a phytoplankton perturbation of approximately 1 mgC/m3 (~10% of average ambient concentrations) that covers an area 10x5 km in size at the 70 to 90m depth. Thus, the perturbations are well within the natural variability of the system, generally corresponding to a 10 to 15% increase above the a

PAT GRANDELLI, P.E.; GREG ROCHELEAU; JOHN HAMRICK, Ph.D.; MATT CHURCH, Ph.D.; BRIAN POWELL, Ph.D.

2012-09-29T23:59:59.000Z

136

Preliminary design for Ocean Thermal Energy Conversion (OTEC) Stationkeeping Subsystem (SKSS). Task IV. Development and testing recommendations  

DOE Green Energy (OSTI)

The preliminary designs of Stationkeeping Subsystems (SKSS) for the OTEC Modular Experiment Plant are being prepared for a barge and spar platform. The SKSS selected by NOAA for the barge is a multiple anchor leg mooring with active tensioning (MAL), while that for the spar is a tension anchor leg (TAL) moor. The development and testing program required to provide design data and to validate performance predictions is described. Basic assumptions are made with regard to site characteristics, behavior of the SKSS and platform in the sea state, and characteristics of SKSS components. The test program is intended to provide the data necessary to confirm assumptions or to support design revisions. The testing program for the multiple anchor leg system is considered first, followed by the tension anchor leg program. Development and testing are recommended in the areas of materials, components and procedures which are beyond modest extrapolation of current ocean engineering practice. (WHK)

None

1979-11-09T23:59:59.000Z

137

Climate and the Tropical Oceans  

Science Conference Proceedings (OSTI)

An attempt is made to determine the role of the ocean in establishing the mean tropical climate and its sensitivity to radiative perturbations. A simple two-box energy balance model is developed that includes ocean heat transports as an ...

Amy Clement; Richard Seager

1999-12-01T23:59:59.000Z

138

Development of a Test Technique to Determine the Thermal Conductivity of Large Refractory Ceramic Test Specimens  

SciTech Connect

A method has been developed to utilize the High Intensity Infrared lamp located at Oak Ridge National Laboratory for the measurement of thermal conductivity of bulk refractory materials at elevated temperatures. The applicability of standardized test methods to determine the thermal conductivity of refractory materials at elevated temperatures is limited to small sample sizes (laser flash) or older test methods (hot wire, guarded hot plate), which have their own inherent problems. A new method, based on the principle of the laser flash method, but capable of evaluating test specimens on the order of 200 x 250 x 50 mm has been developed. Tests have been performed to validate the method and preliminary results are presented in this paper.

Hemrick, James Gordon [ORNL; Dinwiddie, Ralph Barton [ORNL; Loveland, Erick R [ORNL; Prigmore, Andre L [ORNL

2012-01-01T23:59:59.000Z

139

Ferrocyanide safety program: Heat load and thermal characteristics determination for selected tanks  

Science Conference Proceedings (OSTI)

An analysis was conducted to determine the heat loads, conductivities, and heat distributions of waste tanks 241-BY-105, -106, -108, -110, -111, and 241-C-109 at the Hanford Site. The heat distribution of tank 241-BY-111 was determined to be homogeneously distributed throughout the sludge contained in the tank. All of the other tanks, with the exception of 241-C-109, showed evidence of a heat-producing layer at the bottom of the tanks. No evidence of a heat-producing layer in a position above the bottom was found. The thermal conductivities were determined to be within the ranges found by previous laboratory and computer analysis. The heat loads of the tanks were found to be below 2.81 kW (9,600 Btu/hr).

McLaren, J.M.; Cash, R.J.

1993-11-01T23:59:59.000Z

140

Experimental Determination of the Effect of Reactor Radiation on the Thermal Conductivity of Uranium-Impregnated Graphite  

SciTech Connect

Experiments are described in which the change in thermal conductivity of U-impregnated graphite under neutron irradiation was measured. Thermal resistivities relative to the thermal resistivity of undamaged impregnated graphite are reorted as functions of exposure. From applications of the expermental results to the North American Aviation low-power research reactor the peak tem. of the core is determined for a given reactor power and time of operation.

Hetrick, D.L.; McCarty, W.K.; Steele, G.N.; Brown, M.S.; Clark, E.V.; Holmes, F.R.; Howard, D.F.; McElroy, W.N.; Shields, B.L.

1953-01-06T23:59:59.000Z

Note: This page contains sample records for the topic "determination ocean thermal" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


141

Structure determination of thermal-spray materials using synchrotron x-ray microtomography. [Cr[sub 3]C[sub 2]/NiCr thermal-spray coating  

SciTech Connect

The structure of materials prepared using thermal spray methods is difficult to determine using conventional microscopy of porosimetry methods. The difficulties inherent in these approaches can be circumvented using synchrotron computed microtomography(CMT). An example of the use of CMT to produce a high resolution non- destructive image of a thermal-spray coating is Cr[sub 3]C[sub 2]/NiCr is described here to illustrate the power of this technique.

Spanne, P.; Jones, K.W. (Brookhaven National Lab., Upton, NY (United States)); Herman, H. (State Univ. of New York, Stony Brook, NY (United States)); Riggs, W.L. (General Electric Co., Cincinnati, OH (United States). Aircraft Engines)

1991-01-01T23:59:59.000Z

142

Ocean thermal energy conversion (OTEC) power system development (PSD) II. Preliminary design report. Appendix II: supporting data  

DOE Green Energy (OSTI)

The trade studies, calculations, and reports which provide the rationale for design conclusions for the 10 MWe OTEC power system are presented in this volume. These appendices include: (1) system design and optimization model; (2) system off-design performance computer model; (3) seawater system dynamics; (4) system mechanical design studies; (5) electrical design studies; (6) structural design studies; (7) tube cleaner design report and proposed brush test program; (8) heat exchangers: mechanical design; (9) heat exchangers: thermal hydraulic computer model; (10) heat exchangers: manufacturing flow plan; (11) heat exchangers: installation and removal procedures; (12) heat exchangers: stainless steel conceptual design; (13) heat exchangers: cost studies; (14)heat exchangers: materials selection and corrosion; and (15) heat exchangers: quality assurance. (WHK)

Not Available

1979-08-10T23:59:59.000Z

143

Thermal springs list for the United States; National Oceanic and Atmospheric Administration Key to Geophysical Records Documentation No. 12  

DOE Green Energy (OSTI)

The compilation has 1702 thermal spring locations in 23 of the 50 States, arranged alphabetically by State (Postal Service abbreviation) and degrees of latitude and longitude within the State. It shows spring name, surface temperature in degrees Fahrenheit and degrees Celsius; USGS Professional Paper 492 number, USGS Circular 790 number, NOAA number, north to south on each degree of latitude and longitude of the listed. USGS 1:250,000-scale (AMS) map; and the USGS topographic map coverage, 1:63360- or 1:62500-scale (15-minute) or 1:24000-scale (7.5-minute) quadrangle also included is an alphabetized list showing only the spring name and the State in which it is located. Unnamed springs are omitted. The list includes natural surface hydrothermal features: springs, pools, mud pots, mud volcanoes, geysers, fumaroles, and steam vents at temperature of 20{sup 0}C (68[sup 0}F) or greater. It does not include wells or mines, except at sites where they supplement or replace natural vents presently or recently active, or, in some places, where orifices are not distinguishable as natural or artificial. The listed springs are located on the USGS 1:250,000 (AMS) topographic maps. (MHR)

Berry, G.W.; Grim, P.J.; Ikelman, J.A. (comps.)

1980-06-01T23:59:59.000Z

144

Global Ocean Meridional Overturning  

Science Conference Proceedings (OSTI)

A decade-mean global ocean circulation is estimated using inverse techniques, incorporating air–sea fluxes of heat and freshwater, recent hydrographic sections, and direct current measurements. This information is used to determine mass, heat, ...

Rick Lumpkin; Kevin Speer

2007-10-01T23:59:59.000Z

145

Estimates of Cabbeling in the Global Ocean  

Science Conference Proceedings (OSTI)

Owing to the larger thermal expansion coefficient at higher temperatures, more buoyancy is put into the ocean by heating than is removed by cooling at low temperatures. The authors show that, even with globally balanced thermal and haline surface ...

Julian J. Schanze; Raymond W. Schmitt

2013-04-01T23:59:59.000Z

146

Ocean Terracing  

E-Print Network (OSTI)

Artworks can improve humanity ability to apply macro-engineering principles which skirt or correct oceanographic problems impairing the economic usefulness of coastal land, the overhead airshed, and seawater temperature and salinity stability. A new form of Art, Ocean Art, is here proposed which centers on deliberate terracing of appropriate regions of our world ocean; a proposed example of macro-engineered useful Ocean Art is the technically possible 21-st Century terracing of the Mediterranean Sea. Ocean Art is applicable worldwide to places that might be practically improved by its judicious employment. Such Ocean Art may constitute an entirely unique category of solutions to coastal disaster prevention planning.

Richard Cathcart; Alexander Bolonkin

2007-01-09T23:59:59.000Z

147

Ocean thermal energy conversion (OTEC) power system development utilizing advanced, high-performance heat transfer techniques. Volume 1. Conceptual design report  

DOE Green Energy (OSTI)

The objective of this project is the development of a preliminary design for a full-sized, closed cycle, ammonia power system module for the 100 MWe OTEC Demonstration Plant. In turn, this Demonstration Plant is to demonstrate, by 1984, the operation and performance of an ocean thermal power plant having sufficiently advanced heat exchanger design to project economic viability for commercial utilization in the late 1980's and beyond. Included in this power system development are the preliminary designs for a proof-of-concept pilot plant and test article heat exchangers which are scaled in such a manner as to support a logically sequential, relatively low-cost development of the full-scale power system module. The conceptual designs are presented for the Demonstration Plant power module, the proof-of-concept pilot plant, and for a pair of test article heat exchangers. Costs associated with the design, development, fabrication, checkout, delivery, installation, and operation are included. The accompanying design and producibility studies on the full-scale power system module project the performance/economics for the commercial plant. This section of the report describes the full-size power system module, and summarizes the design parameters and associated costs for the Demonstration Plant module (prototype) and projects costs for commercial plants in production. The material presented is directed primarily toward the surface platform/ship basic reference hull designated for use during conceptual design; however, other containment vessels were considered during the design effort so that the optimum power system would not be unduly influenced or restricted. (WHK)

Not Available

1978-05-12T23:59:59.000Z

148

CX-004741: Categorical Exclusion Determination | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

1: Categorical Exclusion Determination 1: Categorical Exclusion Determination CX-004741: Categorical Exclusion Determination Ocean Thermal Energy Conversion Cold Water Pipe-Platform Subsystem Dynamic Interaction Validation CX(s) Applied: A9, B3.6 Date: 12/14/2010 Location(s): Manassas, Virginia Office(s): Energy Efficiency and Renewable Energy, Golden Field Office Lockheed Martin (LMCO) in Manassas, Virginia, is proposing to use Department of Energy funding to validate the ability to numerically model the dynamic interaction between a large (10 meter diameter) cold water-filled pipe (CWP) and a floating ocean thermal energy conversion (OTEC) platform, excited by a meteorological and ocean (metocean) weather conditions. The numerical model would greatly reduce deployment risk and add to design surety for floating ocean thermal conversion platforms of

149

OceanEnergyMMS.p65  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Minerals Management Service, U.S. Department of the Interior Ocean Energy PAGE 1 Minerals Management Service, U.S. Department of the Interior Ocean Energy PAGE 1 Teacher Guide .......................................................... 2 Related National Science Standards .......................... 3 Introduction to Ocean Energy .................................. 4 Petroleum & Natural Gas ......................................... 5 Natural Oil and Gas Seeps ........................................ 7 Methane Hydrates .................................................... 8 Solar Energy .............................................................. 9 Wind Energy ........................................................... 10 Wave Energy ........................................................... 11 OTEC: Ocean Thermal Energy Conversion .............

150

Flexible ocean upwelling pipe  

DOE Patents (OSTI)

In an ocean thermal energy conversion facility, a cold water riser pipe is releasably supported at its upper end by the hull of the floating facility. The pipe is substantially vertical and has its lower end far below the hull above the ocean floor. The pipe is defined essentially entirely of a material which has a modulus of elasticity substantially less than that of steel, e.g., high density polyethylene, so that the pipe is flexible and compliant to rather than resistant to applied bending moments. The position of the lower end of the pipe relative to the hull is stabilized by a weight suspended below the lower end of the pipe on a flexible line. The pipe, apart from the weight, is positively buoyant. If support of the upper end of the pipe is released, the pipe sinks to the ocean floor, but is not damaged as the length of the line between the pipe and the weight is sufficient to allow the buoyant pipe to come to a stop within the line length after the weight contacts the ocean floor, and thereafter to float submerged above the ocean floor while moored to the ocean floor by the weight. The upper end of the pipe, while supported by the hull, communicates to a sump in the hull in which the water level is maintained below the ambient water level. The sump volume is sufficient to keep the pipe full during heaving of the hull, thereby preventing collapse of the pipe.

Person, Abraham (Los Alamitos, CA)

1980-01-01T23:59:59.000Z

151

SOME OCEAN MODEL FUNDAMENTALS  

E-Print Network (OSTI)

The purpose of these lectures is to present elements of the equations and algorithms used in numerical models of the large-scale ocean circulation. Such models generally integrate the ocean’s primitive equations, which are based on Newton’s Laws applied to a continuum fluid under hydrostatic balance in a spherical geometry, along with linear irreversible thermodynamics and subgrid scale (SGS) parameterizations. During formulations of both the kinematics and dynamics, we highlight issues related to the use of a generalized vertical coordinate. The vertical coordinate is arguably the most critical element determining how a model is designed and applications to which a model is of use.

Stephen M. Griffies

2005-01-01T23:59:59.000Z

152

A New Method to Determine the Thermal Properties of Soil Formations from In Situ Field Tests  

DOE Green Energy (OSTI)

The geothermal or ground-source heat pump (GHP) has been shown to be a very efficient method of providing heating and cooling for buildings. GHPs exchange (reject or extract) heat with the earth by way of circulating water, rather than by use of circulating outdoor air, as with an air-source heat pump. The temperature of water entering a GHP is generally cooler than that of outdoor air when space cooling is required, and warmer than that of outdoor air when space heating is required. Consequently, the temperature lift across a GHP is less than the lift across an air-source heat pump. The lower temperature lift leads to greater efficiency, higher capacity at extreme outdoor air temperatures, and better indoor humidity control. These benefits are achieved, however, at the cost of installing a ground heat exchanger. In general, this cost is proportional to length of the heat exchanger, and for this reason there is an incentive to install the minimum possible length such that design criteria are met. The design of a ground heat exchanger for a GHP system requires, at a minimum, the operating characteristics of the heat pumps, estimates of annual and peak block loads for the building, and information about the properties of the heat exchanger: the size of the U-tubes, the grouting material, etc. The design also requires some knowledge of the thermal properties of the soil, namely thermal conductivity, thermal diffusivity, and undisturbed soil temperature. In the case of a vertical borehole heat exchanger (BHEx) these properties generally vary with depth; therefore, in the design, effective or average thermal properties over the length of the borehole are usually sought. When the cost of doing so can be justified, these properties are measured in an in situ experiment: a test well is drilled to a depth on the same order as the expected depth of the heat pump heat exchangers; a U-tube heat exchanger is inserted and the borehole is grouted according to applicable state and local regulations; water is heated and pumped through the U-tube (using a field generator to power the equipment, or line voltage where available); and the inlet and outlet water temperatures are measured as a function of time. Data on inlet and outlet temperature, power input to the heater and pump, and water flow rate are collected at regular intervals--typically 1 to 15 min--for the duration of the experiment, which may be as long as 60 h. Two common methods for determining soil thermal properties from such measurements are the line source method and the cylinder source method. Both are based on long-term approximate solutions to the classical heat conduction problem of an infinitely long heat source in an infinite homogeneous medium. Although there are some differences in the way the two methods are implemented, the only difference between the two models is whether the heat source is considered to be a line or a cylinder. In both methods, power input to the water loop is assumed to be constant. The simplicity of these methods makes them attractive, but they also have some disadvantages. First of all, because the line source and cylinder source approximations are inaccurate for early time behavior, some of the initial data from the field test must be discarded. The amount of data discarded can affect the property measurement. Also, both methods assume that the heat transfer to the ground loop is constant. In practice, heat input to the loop may vary significantly over the course of a field test due to rough operation of the generator or short-term sags and swells in power line voltage. Presumably, this variation affects the accuracy of the thermal property measurement, but error analysis is rarely performed. This report presents a new method for determining thermal properties from short-term in situ tests using a parameter estimation technique. Because it is based on numerical solutions to the heat conduction equation, the new method is not affected by short-term variations in heat input. Also, since the model is accurate even for short times, there is no n

Shonder, J.A.

2000-05-02T23:59:59.000Z

153

Thermoelectric Ocean Thermal Energy Conversion  

DOE Green Energy (OSTI)

A novel thermoelectric OTEC concept is proposed and compared with the ammonia closed-cycle designs. The thermoelectric OTEC is a much simpler system which uses no working fluid and therefore requires no pressure vessel, working fluid pumps, or turbogenerator. These components are replaced by power modules which are heat exchangers integrated with thermoelectric generators. The thermoelectric OTEC offers several potential advantages including: simpler and more easily mass-produced components; higher reliability system performance through the use of a high level of redundancy and long-lived, solid-state thermoelectric generators; greater safety for crew and environment by elimination of the pressurized working fluid; and the possibility of lower system costs. These comparisons are discussed and plans for future work are presented.

Jayadev, T.S.; Benson, D.K.; Bohn, M.S.

1979-06-01T23:59:59.000Z

154

CX-005011: Categorical Exclusion Determination | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

1: Categorical Exclusion Determination 1: Categorical Exclusion Determination CX-005011: Categorical Exclusion Determination Modeling the Physical and Biochemical Influence of Ocean Thermal Energy Conversion Plant Discharges into their Adjacent Waters CX(s) Applied: A9, A11 Date: 01/13/2011 Location(s): West Oahu, Hawaii Office(s): Energy Efficiency and Renewable Energy, Golden Field Office Makai Ocean Engineering Incorporated proposes to use federal funds to study and model Ocean Thermal Energy Conversion design to minimize the environmental impacts and optimize costs associated with operation. They will use a numerical model to measure continuous ocean current profiles, temperatures, and conductivity. DOCUMENT(S) AVAILABLE FOR DOWNLOAD CX-005011_0.pdf More Documents & Publications CX-004536: Categorical Exclusion Determination

155

Evaluation of HOAPS-3 Ocean Surface Freshwater Flux Components  

Science Conference Proceedings (OSTI)

Today, latent heat flux and precipitation over the global ocean surface can be determined from microwave satellite data as a basis for estimating the related fields of the ocean surface freshwater flux. The Hamburg Ocean Atmosphere Parameters and ...

Axel Andersson; Christian Klepp; Karsten Fennig; Stephan Bakan; Hartmut Grassl; Jörg Schulz

2011-02-01T23:59:59.000Z

156

Slow Instabilities in Tropical Ocean Basin–Global Atmosphere Models  

Science Conference Proceedings (OSTI)

The effect of ocean boundaries on instability in coupled ocean-natmosphere models is determined. Eigenvalues and eigenvectors are calculated for coupled systems featuring an ocean basin bounded zonally by a flat continent. The atmosphere is ...

Anthony C. Hirst

1988-03-01T23:59:59.000Z

157

Systems analysis of solar thermal power systems. Report on Task 1: determination and characterization of solar thermal conversion options  

SciTech Connect

Seven general solar thermal conversion concepts were selected initially. The literature review confirmed that these are the only concepts that are developed to a level suitable for inclusion in the comparative analysis to be performed. A summary of information pertaining to these concepts is given and the concepts are briefly described. The information presented is abstracted from applicable references presented in the bibliography. The bibliography and a list of the major contacts established are included in appendices. The seven concepts are: point-focusing distributed receiver system; point focusing, central receiver systems; fixed mirror/distributed focus system; line-focus central receiver system; line-focus distributed receiver system; fixed mirror line-focus distributed receiver system, and low concentrator non-tracking systems. (WHR)

Apley, W.J.

1978-07-01T23:59:59.000Z

158

An Improved System for Tropical Ocean Subsurface Temperature Analyses  

Science Conference Proceedings (OSTI)

This study demonstrates techniques that lead to improved use of ocean thermal information and more useful and informative products for monitoring variability in the tropical oceans. The method is based on statistical interpolation and is ...

Neville R. Smith

1995-08-01T23:59:59.000Z

159

Barotropic and Baroclinic Tides in the Central North Pacific Ocean Determined from Long-Range Reciprocal Acoustic Transmissions  

Science Conference Proceedings (OSTI)

Travel times of reciprocal 1000-km range acoustic transmissions, determined from the 1987 Reciprocal Tomography Experiment, are used to study barotropic tidal currents and a large-scale, coherent baroclinic tide in the central North Pacific ...

Brian D. Dushaw; Bruce M. Howe; Bruce D. Cornuelle; Peter F. Worcester; Douglas S. Luther

1995-04-01T23:59:59.000Z

160

ANALYSIS OF TWO SMALL MAGELLANIC CLOUD H II REGIONS CONSIDERING THERMAL INHOMOGENEITIES: IMPLICATIONS FOR THE DETERMINATIONS OF EXTRAGALACTIC CHEMICAL ABUNDANCES  

SciTech Connect

We present long-slit spectrophotometry considering the presence of thermal inhomogeneities (t{sup 2}) of two H II regions in the Small Magellanic Cloud (SMC): NGC 456 and NGC 460. Physical conditions and chemical abundances were determined for three positions in NGC 456 and one position in NGC 460, first under the assumption of uniform temperature and then allowing for the possibility of thermal inhomogeneities. We determined t{sup 2} values based on three different methods: (1) by comparing the temperature derived using oxygen forbidden lines with the temperature derived using helium recombination lines (RLs), (2) by comparing the abundances derived from oxygen forbidden lines with those derived from oxygen RLs, and (3) by comparing the abundances derived from ultraviolet carbon forbidden lines with those derived from optical carbon RLs. The first two methods averaged t{sup 2} = 0.067 {+-} 0.013 for NGC 456 and t{sup 2} = 0.036 {+-} 0.027 for NGC 460. These values of t{sup 2} imply that when gaseous abundances are determined with collisionally excited lines they are underestimated by a factor of nearly two. From these objects and others in the literature, we find that in order to account for thermal inhomogeneities and dust depletion, the O/H ratio in low-metallicity H II regions should be corrected by 0.25-0.45 dex depending on the thermal structure of the nebula or by 0.35 dex if such information is not available.

Pena-Guerrero, Maria A.; Peimbert, Antonio; Peimbert, Manuel [Instituto de Astronomia, Universidad Nacional Autonoma de Mexico, Apdo. Postal 70-264, Mexico 04510 D.F. (Mexico); Ruiz, Maria Teresa, E-mail: guerrero@astroscu.unam.mx, E-mail: antonio@astroscu.unam.mx, E-mail: peimbert@astroscu.unam.mx, E-mail: mtruiz@das.uchile.cl [Departamento de Astronomia, Universidad de Chile, Casilla Postal 36D, Santiago de Chile (Chile)

2012-02-20T23:59:59.000Z

Note: This page contains sample records for the topic "determination ocean thermal" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


161

Determining effective soil formation thermal properties from field data using a parameter estimation technique  

DOE Green Energy (OSTI)

A one-dimensional thermal model is derived to describe the temperature field around a vertical borehole heat exchanger (BHEx) for a geothermal heat pump. The inlet and outlet pipe flows are modeled as one, and an effective heat capacity is added to model the heat storage in the fluid and pipes. Parameter estimation techniques are then used to estimate various parameters associated with the model, including the thermal conductivity of the soil and of the grout which fills the borehole and surrounds the u-tube. The model is validated using test data from an experimental rig containing sand with known thermal conductivity. The estimates of the sand thermal conductivity derived from the model are found to be in good agreement with independent measurements.

Shonder, J.A. [Oak Ridge National Lab., TN (United States); Beck, J.V. [Michigan State Univ., East Lansing, MI (United States)

1998-11-01T23:59:59.000Z

162

DETERMINATION OF THE COEFFICIENT OF LINEAR THERMAL EXPANSION OF METALS AT T C  

SciTech Connect

A dial gage dilatometer was used to determine the thermal expansion of 18/8/l and 18/13/1 stainless steels and of cast uranium. The measurements were made under a vacuum of 2 x 10/sup -3/ mm Hg. Both types of steel showed linear expansion over the temperature range 20 to 900 deg C, the coefficients of expansion obtained being 1.88 plus or minus 0.03 x 10/sup -5/ and 1.87 plus or minus 0.03 x 10/sup -5 deg /C/sup -1/, respectively. Values of 1.64 to 1.70 plus or minus 0.05, 2.20 plus or minus 0.05. and 1.70 plus or minus 0.05 x 10/sup -5 deg /C/sup -1/ were obtained for the coefficients of expansion of cast uranium in the alpha , BETA , and gamma forms. The alpha BETA and BETA - - gamma transformations gave rise a changes in length of 0.7 and 0.4%. (auth) l6223 The conditions in a die during hot pressing are considered in delail and from this consideration the propenties of an ideal die material are specified. Possible die materials for hot pressing uranium are discussed and compared with this ideal specification. Experimental work on cemented carbides compatible with uranium is recommended. (auth) l6224 Stresses likely to arise in the fuel elements of the fast fission reactor due to its design and operation have been calculated using simple elastic theory. The effects of some of these stresses are briefly considered, and recommendations are made as to ways in which some of the more dangerous stresses may be eliminated or reduced. (auth) l6225 The principles of arc melting and casting are described and various types of furnace compared. On the basis of experiments with a small laboratory furnace a large ingot casting furnace has been designed. It has been shown that when using an argon atmosphere there are no fundamental difficulties to be overcome. With a non-consumable upper electrode it has not yet heen possible to maintain a stable arc below 0.2 mm pressure, and it is recommended that the ingot casting furnace should be operated in an argon atmosphere until this problem hss been solved. (auth)

Makin, S.M.; Hunter, P.

1953-03-01T23:59:59.000Z

163

Ocean Datasets | Data.gov  

NLE Websites -- All DOE Office Websites (Extended Search)

Ocean Datasets Ocean Data Tools Technical Guide Map Gallery Regional Planning Feedback Ocean You are here Data.gov Communities Ocean Ocean, Coast, and Great Lakes Planning...

164

On Thermal Expansion over the Last Hundred Years  

Science Conference Proceedings (OSTI)

Estimates of sea level rise during the period 1856–1991 due to thermal expansion are presented. The estimates are based on an ocean model that consists of three zonally averaged ocean basins representing the Atlantic, Pacific, and Indian Oceans. ...

J. R. de Wolde; R. Bintanja; J. Oerlemans

1995-11-01T23:59:59.000Z

165

Determination of phonon dispersion relations by X-ray thermal diffuse scattering  

SciTech Connect

Thermal diffuse scattering (TDS) of X-rays from crystals contains information on phonons. This paper reviews the general theory of TDS and some recent experiments aimed at further developing TDS into a useful and efficient method for studying phonon dispersion relations.

Xu, R.; Chiang, T.-C. (UIUC)

2010-07-20T23:59:59.000Z

166

Development and Analysis of the Systematically Merged Atlantic Regional Temperature and Salinity Climatology For Oceanic Heat Content Estimates  

Science Conference Proceedings (OSTI)

An oceanic climatology to calculate upper ocean thermal structure was developed for application year-round in the North Atlantic Ocean basin. The Systematically Merged Atlantic Regional Temperature and Salinity (SMARTS) Climatology is used in a ...

P. C. Meyers; L. K. Shay; J. K. Brewster

167

CX-007394: Categorical Exclusion Determination | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

7394: Categorical Exclusion Determination 7394: Categorical Exclusion Determination CX-007394: Categorical Exclusion Determination The Potential lmpacts of Ocean Thermal Energy Conversion Intakes on Aquatic Organisms at an OTEC Site under Development on Kauai, Hawaii CX(s) Applied: A9, B3.3, B3.6 Date: 12/21/2011 Location(s): Hawaii Offices(s): Golden Field Office Ocean Engineering and Energy Systems International, Inc. (OCEES) is proposing to use DOE funding to evaluate the potential impact of an ocean thermal energy conversion (OTEC) facility on aquatic organisms. The purpose of this project is to determine the effectiveness of two pilot scale mesh screens in protecting larvae and eggs from entrainment in the intake system. CX-007394.pdf More Documents & Publications CX-005746: Categorical Exclusion Determination

168

CX-002278: Categorical Exclusion Determination | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

2278: Categorical Exclusion Determination 2278: Categorical Exclusion Determination CX-002278: Categorical Exclusion Determination The Potential Impacts of Ocean Thermal Energy Conversion (OTEC) Intakes on Aquatic Organisms at an OTEC Site under Development on Kauai, Hawaii CX(s) Applied: B3.6, A9 Date: 05/13/2010 Location(s): Kauai, Hawaii Office(s): Energy Efficiency and Renewable Energy, Golden Field Office Ocean Engineering and Energy Systems International, Inc. (OCEES) is proposing to use Department of Energy funding to evaluate the potential impact of an ocean thermal energy conversion (OTEC) facility on aquatic organisms. The purpose of this project is to determine the effectiveness of two pilot scale mesh screens in protecting larvae and eggs from entrainment in the intake system. In addition to conducting field sampling at two

169

CX-005746: Categorical Exclusion Determination | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

5746: Categorical Exclusion Determination 5746: Categorical Exclusion Determination CX-005746: Categorical Exclusion Determination The Potential Impacts of Ocean Thermal Energy Conversion (OTEC) Intakes on Aquatic Organisms at an OTEC Site under Development on Kauai, Hawaii CX(s) Applied: B3.1, B3.3, B3.6 Date: 05/02/2011 Location(s): Kauai, Hawaii Office(s): Energy Efficiency and Renewable Energy, Golden Field Office Ocean Engineering and Energy Systems International, Inc. (OCEES) is proposing to use Department of Energy funding to evaluate the potential impact of an ocean thermal energy conversion (OTEC) facility on aquatic organisms. The purpose of this project is to determine the effectiveness of two pilot scale mesh screens in protecting larvae and eggs from entrainment in the intake system.

170

A method to determine stratification efficiency of thermal energy storage processes independently from storage heat losses  

Science Conference Proceedings (OSTI)

A new method for the calculation of a stratification efficiency of thermal energy storages based on the second law of thermodynamics is presented. The biasing influence of heat losses is studied theoretically and experimentally. Theoretically, it does not make a difference if the stratification efficiency is calculated based on entropy balances or based on exergy balances. In practice, however, exergy balances are less affected by measurement uncertainties, whereas entropy balances can not be recommended if measurement uncertainties are not corrected in a way that the energy balance of the storage process is in agreement with the first law of thermodynamics. A comparison of the stratification efficiencies obtained from experimental results of charging, standby, and discharging processes gives meaningful insights into the different mixing behaviors of a storage tank that is charged and discharged directly, and a tank-in-tank system whose outer tank is charged and the inner tank is discharged thereafter. The new method has a great potential for the comparison of the stratification efficiencies of thermal energy storages and storage components such as stratifying devices. (author)

Haller, Michel Y.; Streicher, Wolfgang [Institute of Thermal Engineering, Graz University of Technology, Inffeldgasse 25/B, 8010 Graz (Austria); Yazdanshenas, Eshagh; Andersen, Elsa; Furbo, Simon [Department of Civil Engineering, Technical University of Denmark, Brovej, Building 118, DK-2800, Kgs. Lyngby (Denmark); Bales, Chris [Solar Energy Research Center SERC, Hoegskolan Dalarna, 781 88 Borlaenge (Sweden)

2010-06-15T23:59:59.000Z

171

Apparatus for determining past-service conditions and remaining life of thermal barrier coatings and components having such coatings  

DOE Patents (OSTI)

An apparatus for determining past-service conditions and/or remaining useful life of a component of a combustion engine and/or a thermal barrier coating ("TBC") of the component comprises a radiation source that provides the exciting radiation to the TBC to excite a photoluminescent ("PL") material contained therein, a radiation detector for detecting radiation emitted by the PL material, and means for relating a characteristic of an emission spectrum of the PL material to the amount of a crystalline phase in the TBC, thereby inferring the past-service conditions or the remaining useful life of the component or the TBC.

Srivastava, Alok Mani (Niskayuna, NY); Setlur, Anant Achyut (Niskayuna, NY); Comanzo, Holly Ann (Niskayuna, NY); Devitt, John William (Clifton Park, NY); Ruud, James Anthony (Delmar, NY); Brewer, Luke Nathaniel (Rexford, NY)

2004-05-04T23:59:59.000Z

172

Categorical Exclusion Determinations: Virginia | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

March 5, 2010 March 5, 2010 CX-001151: Categorical Exclusion Determination Red Birch Energy CX(s) Applied: B1.15, B5.1 Date: 03/05/2010 Location(s): Bassett, Virginia Office(s): Energy Efficiency and Renewable Energy, National Energy Technology Laboratory February 25, 2010 CX-000917: Categorical Exclusion Determination Ocean Thermal Energy Converter Life Cycle Cost Analysis Date: 02/25/2010 Location(s): Virginia Office(s): Energy Efficiency and Renewable Energy, Golden Field Office February 25, 2010 CX-000916: Categorical Exclusion Determination Ocean Thermal Extractable Energy Visualization CX(s) Applied: A9 Date: 02/25/2010 Location(s): Virginia Office(s): Energy Efficiency and Renewable Energy, Golden Field Office February 24, 2010 CX-000915: Categorical Exclusion Determination

173

Ocean Map | Data.gov  

NLE Websites -- All DOE Office Websites (Extended Search)

Map Ocean Data Tools Technical Guide Map Gallery Regional Planning Feedback Ocean You are here Data.gov Communities Ocean Map Gallery Planning for ocean, coastal, and Great...

174

CX-004536: Categorical Exclusion Determination | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

6: Categorical Exclusion Determination 6: Categorical Exclusion Determination CX-004536: Categorical Exclusion Determination Subtask 2.4 Ocean Thermal Energy Conversion Facility - University of Hawaii CX(s) Applied: A9, A11 Date: 11/24/2010 Location(s): Hawaii Office(s): Energy Efficiency and Renewable Energy, Golden Field Office The University of Hawaii is proposing to use Department of Energy funding under subtask 2.4 to provide advisory and technical support to Lockheed-Martin and Makai Ocean Engineering in support of their planning development for a future Ocean Thermal Energy Conversion (OTEC) heat exchanger test facility in Hawaii. Specifically the University will assist in selecting potential sites for the testing facility in addition to developing a technical statement of work for Lockheed-Martin and Makai

175

The Ventilated Ocean  

Science Conference Proceedings (OSTI)

Adiabatic theories of ocean circulation and density structure have a long tradition, from the concept of the ventilated thermocline to the notion that deep ocean ventilation is controlled by westerly winds over the Southern Ocean. This study ...

Patrick Haertel; Alexey Fedorov

2012-01-01T23:59:59.000Z

176

On Scatterometer Ocean Stress  

Science Conference Proceedings (OSTI)

Scatterometers estimate the relative atmosphere–ocean motion at spatially high resolution and provide accurate inertial-scale ocean wind forcing information, which is crucial for many ocean, atmosphere, and climate applications. An empirical ...

M. Portabella; A. Stoffelen

2009-02-01T23:59:59.000Z

177

Restratification of the Upper Ocean after the Passage of a Tropical Cyclone: A Numerical Study  

Science Conference Proceedings (OSTI)

The role of baroclinic instability in the restratification of the upper ocean after the passage of a tropical cyclone (TC) is determined by means of numerical simulations. Using a regional ocean model, the Regional Ocean Modeling System (ROMS), a ...

Wei Mei; Claudia Pasquero

2012-09-01T23:59:59.000Z

178

Modified Fowler-Milne method for the spectroscopic determination of thermal plasma temperature without the measurement of continuum radiation  

Science Conference Proceedings (OSTI)

A technique based on the Fowler-Milne method for the spectroscopic determination of thermal plasma temperatures without measuring continuum radiation is presented. This technique avoids the influence of continuum radiation with the combined line and continuum emission coefficients to derive the plasma temperatures. The amount of continuum emission coefficient is estimated by using an expression related to the Biberman factors. Parameters that affect the accuracy of the proposed technique and errors in the measured plasma temperatures are analyzed. It is shown that, by using the Ar I 696.5 nm line with a bandwidth of 3.27 nm without taking into account the continuum radiation, the plasma temperature measured will be lower on the order of up to 1000-3000 K for temperatures from 20 000 to 24 000 K. The theoretically predicted temperature errors are in good agreement with the experimental results, indicating that the proposed technique is reliable for plasma temperature measurement.

Ma Shuiliang [State Key Laboratory of Advanced Welding Production Technology, Harbin Institute of Technology, Harbin 150001 (China); Plasma Research Laboratory, Australian National University, Canberra ACT 0200 (Australia); Gao Hongming; Wu Lin [State Key Laboratory of Advanced Welding Production Technology, Harbin Institute of Technology, Harbin 150001 (China)

2011-01-15T23:59:59.000Z

179

Effects of the Indonesian Throughflow on the Pacific and Indian Oceans  

Science Conference Proceedings (OSTI)

Effects of the Indonesian Throughflow (ITF) on the circulation and thermal structure of the Pacific and Indian Oceans are studied by comparing solutions of a near-global ocean general circulation model with open and closed Indonesian passages ...

Tong Lee; Ichiro Fukumori; Dimitris Menemenlis; Zhangfan Xing; Lee-Lueng Fu

2002-05-01T23:59:59.000Z

180

Variations in Ocean Surface Temperature due to Near-Surface Flow: Straining the Cool Skin Layer  

Science Conference Proceedings (OSTI)

The aqueous thermal boundary layer near to the ocean surface, or skin layer, has thickness O(1 mm) and plays an important role in controlling the exchange of heat between the atmosphere and the ocean. Theoretical arguments and experimental ...

Andrew J. Wells; Claudia Cenedese; J. Thomas Farrar; Christopher J. Zappa

2009-11-01T23:59:59.000Z

Note: This page contains sample records for the topic "determination ocean thermal" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


181

Scales of Variability in the Equatorial Pacific Inferred form Tropical Atmosphere-Ocean Buoy Array  

Science Conference Proceedings (OSTI)

The highly temporally resolved time series from the Tropical Atmosphere-Ocean moored buoy array are used to evaluate the scales of thermal variability in the upper equatorial Pacific. The TAO array consists of nearly 70 deep-ocean moorings ...

William S. Kessler; M. C. Spillane; Michael J. McPhaden; D. E. Harrison

1996-12-01T23:59:59.000Z

182

The decay rate of ocean swell observed by altimeter  

Science Conference Proceedings (OSTI)

Altimeter data from transects across the Southern Ocean is analysed to determine the decay of oceanic swell. The resulting decay rate is shown to be proportional to wave number squared and swell amplitude cubed. Such a decay relationship is ...

I. R. Young; A. V. Babanin; S. Zieger

183

ocean | OpenEI  

Open Energy Info (EERE)

ocean ocean Dataset Summary Description This shapefile represents the seasonal winter depth profile to reach water at a temperature of 20ºC. Source NREL Date Released October 28th, 2012 (2 years ago) Date Updated Unknown Keywords depth profile hydrokinetic ocean ocean energy ocean thermal energy conversion OTEC seawater cooling thermal Data application/zip icon OTEC Seawater Cooling 20ºC Depth Profile - Winter Average (zip, 1.1 MiB) Quality Metrics Level of Review Peer Reviewed Comment Temporal and Spatial Coverage Frequency Time Period March 2009 - February 2011 License License Other or unspecified, see optional comment below Comment This GIS data was developed by the National Renewable Energy Laboratory ("NREL"), which is operated by the Alliance for Sustainable Energy, LLC for the U.S. Department of Energy ("DOE"). The user is granted the right, without any fee or cost, to use, copy, modify, alter, enhance and distribute this data for any purpose whatsoever, provided that this entire notice appears in all copies of the data. Further, the user of this data agrees to credit NREL in any publications or software that incorporate or use the data. Access to and use of the GIS data shall further impose the following obligations on the User. The names DOE/NREL may not be used in any advertising or publicity to endorse or promote any product or commercial entity using or incorporating the GIS data unless specific written authorization is obtained from DOE/NREL. The User also understands that DOE/NREL shall not be obligated to provide updates, support, consulting, training or assistance of any kind whatsoever with regard to the use of the GIS data. THE GIS DATA IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL DOE/NREL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER, INCLUDING BUT NOT LIMITED TO CLAIMS ASSOCIATED WITH THE LOSS OF DATA OR PROFITS, WHICH MAY RESULT FROM AN ACTION IN CONTRACT, NEGLIGENCE OR OTHER TORTIOUS CLAIM THAT ARISES OUT OF OR IN CONNECTION WITH THE ACCESS OR USE OF THE GIS DATA. The User acknowledges that access to the GIS data is subject to U.S. Export laws and regulations and any use or transfer of the GIS data must be authorized under those regulations. The User shall not use, distribute, transfer, or transmit GIS data or any products incorporating the GIS data except in compliance with U.S. export regulations. If requested by DOE/NREL, the User agrees to sign written assurances and other export-related documentation as may be required to comply with U.S. export regulations.

184

About Ocean Community | Data.gov  

NLE Websites -- All DOE Office Websites (Extended Search)

About Ocean Community Ocean Data Tools Technical Guide Map Gallery Regional Planning Feedback Ocean You are here Data.gov Communities Ocean About Ocean Community This...

185

Hydropower and Ocean Energy Resources and Technologies | Department of  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Hydropower and Ocean Energy Resources and Technologies Hydropower and Ocean Energy Resources and Technologies Hydropower and Ocean Energy Resources and Technologies October 7, 2013 - 9:29am Addthis Photo of water flowing from several openings in a hydropower dam. Hydropower produces 10% of the nation's energy, including power from the Ice Harbor Dam in Burbank, Washington. This page provides a brief overview of hydropower and ocean energy resources and technologies supplemented by specific information to apply these technologies within the Federal sector. Overview Hydropower has been used for centuries to power machinery, but the application most commonly associated with hydropower is electricity production through dams. Ocean energy refers to various forms of renewable energy harnessed from the ocean. There are two primary types of ocean energy: mechanical and thermal.

186

Ocean Technical | Data.gov  

NLE Websites -- All DOE Office Websites (Extended Search)

Ocean Data Tools Technical Guide Map Gallery Regional Planning Feedback Ocean You are here Data.gov Communities Ocean Technical Community of Practice Through a variety of...

187

The Effect of the Ocean Eddy on Tropical Cyclone Intensity  

Science Conference Proceedings (OSTI)

The rapid intensification of Hurricane Katrina followed by the devastation of the U.S. Gulf States highlights the critical role played by an upper-oceanic thermal structure (such as the ocean eddy or Loop Current) in affecting the development of ...

Chun-Chieh Wu; Chia-Ying Lee; I-I. Lin

2007-10-01T23:59:59.000Z

188

Mixing and Energetics of the Oceanic Thermohaline Circulation  

Science Conference Proceedings (OSTI)

Using an idealized tube model and scaling analysis, the physics supporting the oceanic thermohaline circulation is examined. Thermal circulation in the tube model can be classified into two categories. When the cooling source is at a level higher ...

Rui Xin Huang

1999-04-01T23:59:59.000Z

189

Data Assimilation Tests with an Oceanic Mixed-Layer Model  

Science Conference Proceedings (OSTI)

A data assimilation technique using a one-dimensional, ocean mixed-layer model to advance the thermal structure observations to the analysis time is tested. The effects of insertions of erroneous temperature profiles in such a model are studied ...

Russell L. Elsberry; Larry L. Warrenfelt

1982-08-01T23:59:59.000Z

190

A Laboratory Model of Vertical Ocean Circulation Driven by Mixing  

Science Conference Proceedings (OSTI)

A model of deep ocean circulation driven by turbulent mixing is produced in a long, rectangular laboratory tank. The salinity difference is substituted for the thermal difference between tropical and polar regions. Freshwater gently flows in at ...

J. A. Whitehead; Wei Wang

2008-05-01T23:59:59.000Z

191

Categorical Exclusion Determinations: Golden Field Office | Department of  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

5, 2010 5, 2010 CX-000917: Categorical Exclusion Determination Ocean Thermal Energy Converter Life Cycle Cost Analysis Date: 02/25/2010 Location(s): Virginia Office(s): Energy Efficiency and Renewable Energy, Golden Field Office February 25, 2010 CX-000916: Categorical Exclusion Determination Ocean Thermal Extractable Energy Visualization CX(s) Applied: A9 Date: 02/25/2010 Location(s): Virginia Office(s): Energy Efficiency and Renewable Energy, Golden Field Office February 25, 2010 CX-000911: Categorical Exclusion Determination Austin Solar City Partnership - Lyndon B. Johnson High School CX(s) Applied: B5.1 Date: 02/25/2010 Location(s): Austin, Texas Office(s): Energy Efficiency and Renewable Energy, Golden Field Office February 24, 2010 CX-000907: Categorical Exclusion Determination

192

Categorical Exclusion Determinations: Office of Energy Efficiency and  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

5, 2010 5, 2010 CX-000919: Categorical Exclusion Determination Packwood Lake Hydroelectric Project CX(s) Applied: B5.1 Date: 02/25/2010 Location(s): Washington Office(s): Energy Efficiency and Renewable Energy, Golden Field Office February 25, 2010 CX-000917: Categorical Exclusion Determination Ocean Thermal Energy Converter Life Cycle Cost Analysis Date: 02/25/2010 Location(s): Virginia Office(s): Energy Efficiency and Renewable Energy, Golden Field Office February 25, 2010 CX-000916: Categorical Exclusion Determination Ocean Thermal Extractable Energy Visualization CX(s) Applied: A9 Date: 02/25/2010 Location(s): Virginia Office(s): Energy Efficiency and Renewable Energy, Golden Field Office February 25, 2010 CX-000862: Categorical Exclusion Determination Mount Laurel Energy Audit Implementation Project

193

Southern Ocean Surface Characteristics from FGGE Buoys  

Science Conference Proceedings (OSTI)

In this analysis of satellite-tracked drifting surface buoys released in the Southern Ocean, buoy velocities are averaged along trajectories for 90 days to determine the mean circulation, and eddy kinetic energy is computed using perturbations ...

Mark Andrew Johnson

1989-05-01T23:59:59.000Z

194

Makai Ocean Engineering Inc | Open Energy Information  

Open Energy Info (EERE)

Makai Ocean Engineering Inc Makai Ocean Engineering Inc Jump to: navigation, search Name Makai Ocean Engineering Inc Address PO Box 1206 Place Kailua Zip 96734-1206 Sector Marine and Hydrokinetic Year founded 1973 Number of employees 28 Phone number 808.259.8871 Website http://www.makai.com Region United States LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This company is listed in the Marine and Hydrokinetic Technology Database. This company is involved in the following MHK Projects: Modeling the Physical and Biochemical Influence of Ocean Thermal Energy Conversion Plant Discharges into their Adjacent Waters This company is involved in the following MHK Technologies: Deep Water Pipelines This article is a stub. You can help OpenEI by expanding it.

195

Ocean shell noises  

NLE Websites -- All DOE Office Websites (Extended Search)

Ocean shell noises Name: Rick A Cazzato Location: NA Country: NA Date: NA Question: Why do you here noises when you put a ocean shell to your ear? Does this happen because of...

196

Mixing by ocean eddies  

E-Print Network (OSTI)

Mesoscale eddies mix and transport tracers such as heat and potential vorticity laterally in the ocean. While this transport plays an important role in the climate system, especially in the Southern Ocean, we lack a, ...

Abernathey, Ryan (Ryan Patrick)

2012-01-01T23:59:59.000Z

197

Ocean Thermal Energy Conversion Program Management Plan  

DOE Green Energy (OSTI)

The Office of the Associate Laboratory Director for Energy and Environmental Technology has established the OTEC Program Management Office to be responsible for the ANL-assigned tasks of the OTEC Program under DOE's Chicago Operations and Regional Office (DOE/CORO). The ANL OTEC Program Management Plan is essentially a management-by-objective plan. The principal objective of the program is to provide lead technical support to CORO in its capacity as manager of the DOE power-system program. The Argonne OTEC Program is divided into three components: the first deals with development of heat exchangers and other components of OTEC power systems, the second with development of biofouling counter-measures and corrosion-resistant materials for these components in seawater service, and the third with environmental and climatic impacts of OTEC power-system operation. The essential points of the Management Plan are summarized, and the OTEC Program is described. The organization of the OTEC Program at ANL is described including the functions, responsibilities, and authorities of the organizational groupings. The system and policies necessary for the support and control functions within the organization are discussed. These functions cross organizational lines, in that they are common to all of the organization groups. Also included are requirements for internal and external reports.

Combs, R E

1980-01-01T23:59:59.000Z

198

OCEAN THERMAL ENERGY CONVERSION PROGRAMMATIC ENVIRONMENTAL ASSESSMENT  

E-Print Network (OSTI)

disturbances d~e to carbon dioxide releases and sea-surfacefom installations; however, the carbon dioxide~releases fromwith other man-ind~ced carbon dioxide releases to result in

Sands, M.Dale

2013-01-01T23:59:59.000Z

199

OCEAN THERMAL ENERGY CONVERSION PROGRAMMATIC ENVIRONMENTAL ASSESSMENT  

E-Print Network (OSTI)

planes, Large quantities of chlorine will be used to controlthe marine environment. Chlorine react ions in sea\\Chlorine also has been reported to

Sands, M.Dale

2013-01-01T23:59:59.000Z

200

Ocean Thermal Energy Conversion LUIS A. VEGA  

E-Print Network (OSTI)

demand due to emerging economies like China, India, and Brazil. Coal and natural gas resources 7296 O. It seems sensible toconsider OTEC as one of the renewable energy technologies of the future. Introduction

Note: This page contains sample records for the topic "determination ocean thermal" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


201

Ocean Thermal Energy Conversion Mostly about USA  

E-Print Network (OSTI)

Structures (Plantships) · Bottom-Mounted Structures · Model Basin Tests/ At-Sea Tests · 210 kW OC-OTEC systems and with an investment payback period estimated at 3 to 4 years. #12;OTEC 12 Energy Carriers & Attachments #12;#12;#12;#12;Bottom-Mounted Structures · Fixed Towers · Guyed Towers · TLP not shown · Causeway

202

The Potential Impact of Ocean Thermal Energy  

E-Print Network (OSTI)

to the entrainmcnt and impingement that would result with the pumping of large volumes of seawater through an OTEC on bottom-mounted towers or offshore in the form of moored floating plants or free- floating plantships on the order of 100 m. Bottom-mounted plants (on towers) will make use of the space along the vertical extent

203

OCEAN THERMAL ENERGY CONVERSION PROGRAMMATIC ENVIRONMENTAL ASSESSMENT  

E-Print Network (OSTI)

and power usages (baseload electricity and production of =approximately 60 GW of baseload electricty could be producedcommunities, and will produce baseload electrical power and

Sands, M.Dale

2013-01-01T23:59:59.000Z

204

Ocean | Data.gov  

NLE Websites -- All DOE Office Websites (Extended Search)

Ocean Ocean Ocean Data Tools Technical Guide Map Gallery Regional Planning Feedback Ocean Welcome to our COMMUNITY This is the National Ocean Council's portal for data, information, and decision tools to support people engaged in regional marine planning for the future use of the ocean, our coasts, and the Great Lakes. Our goal is to enhance discovery of and access to data and information for planners, stakeholders, and the public. Please visit our Feedback page to tell us what would make the site most useful to you as we expand our content. Start Here! Previous Pause Next PacIOOS - Pacific Islands Voyager PacIOOS - Pacific Islands Voyager View More West Coast Governors Alliance - Regional Data Framework West Coast Governors Alliance - Regional Data Framework View More Mid-Atlantic Ocean Data Portal

205

CX-000917: Categorical Exclusion Determination | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

17: Categorical Exclusion Determination 17: Categorical Exclusion Determination CX-000917: Categorical Exclusion Determination Ocean Thermal Energy Converter Life Cycle Cost Analysis Date: 02/25/2010 Location(s): Virginia Office(s): Energy Efficiency and Renewable Energy, Golden Field Office Lockheed Martin will use Department of Energy funding to conduct a desk-top analysis of Life Cycle Costs for both near-shore and offshore Ocean Thermal Energy Converter (OTEC) facilities. The analysis will define baseline scenario and capital cost requirements for near-shore grid connected plants as well as the requirements for an offshore energy carrier and the requirements and costs to transport that carrier to the United States. The project will also define the environmental issues necessary for permitting,

206

Ocean energy contract list, fiscal year 1990  

DOE Green Energy (OSTI)

The purpose of the federal Ocean Energy Technology (OET) Program is to develop techniques that harness ocean energy (waves, currents, and thermal and salinity gradients) in a cost-effective and environmentally acceptable manner. The OET Program seeks to develop ocean energy technology to a point at which the commercial sector can assess whether applications of the technology are viable energy conversion alternatives or supplements to systems. The federal OET Program is conducted by DOE and is assigned to the Assistant Secretary for Conservation and Renewable Energy. Past studies conducted by the US Department of Energy (DOE) have identified ocean thermal energy conversion (OTEC) as the largest potential contributor to US energy supplies from the ocean resource. As a result, of the OET Program concentrates on research to advance OTEC technology. The FY 1990 contract overview comprises a list of all subcontracts begun, ongoing, or completed during FY 1990 (October 1, 1989, through September 30, 1990). Under each managing laboratory, projects are listed alphabetically by project area and then by subcontractor name.

Not Available

1991-08-01T23:59:59.000Z

207

Ocean Radiant Heating. Part II: Parameterizing Solar Radiation Transmission through the Upper Ocean  

Science Conference Proceedings (OSTI)

Accurate determination of sea surface temperature (SST) is critical to the success of coupled ocean–atmosphere models and the understanding of global climate. To accurately predict SST, both the quantity of solar radiation incident at the sea ...

J. Carter Ohlmann; David A. Siegel

2000-08-01T23:59:59.000Z

208

oceans - Geodata icon | Data.gov  

NLE Websites -- All DOE Office Websites (Extended Search)

oceans - Geodata icon Ocean Data Tools Technical Guide Map Gallery Regional Planning Feedback Ocean You are here Data.gov Communities Ocean...

209

Frequency-dependent hydrodynamic inductance and the determination of the thermal and quantum noise of a superfluid gyroscope  

SciTech Connect

We reexamine mass flow in a superfluid gyroscope containing a superfluid Josephson weak link. We introduce a frequency-dependent hydrodynamic inductance to account for an oscillatory flow of the normal fluid component in the sensing loop. With this hydrodynamic inductance, we derive the thermal phase noise, and hence the thermal rotational noise of the gyroscope. We examine the thermodynamic stability of the system based on an analysis of the free energy. We derive a quantum phase noise, which is analogous to the zero-point motion of a simple harmonic oscillator. The configuration of the studied gyroscope is analogous to a conventional superconducting RF SQUID. We show that the gyroscope has very low intrinsic noise (1.9x10{sup -13} rad s{sup -1}/{radical}(Hz)), and it can potentially be applied to study general relativity, Earth science, and to improve global positioning systems (GPS)

Chui, Talso; Penanen, Konstantin [Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California 91109 (United States)

2005-04-01T23:59:59.000Z

210

Oceanic Heat Flux Calculation  

Science Conference Proceedings (OSTI)

The authors review the procedure for the direct calculation of oceanic heat flux from hydrographic measurements and set out the full “recipe” that is required.

Sheldon Bacon; Nick Fofonoff

1996-12-01T23:59:59.000Z

211

Constraining oceanic dust deposition using surface ocean dissolved Al  

E-Print Network (OSTI)

Iron, manganese and lead at Hawaii Ocean Time-series stationof beryllium to the oceans, Earth Planet. Sci. Lett. , 114,organic carbon fluxes in the ocean based on the quantitative

Han, Qin; Moore, J. Keith; Zender, Charles; Measures, Chris; Hydes, David

2008-01-01T23:59:59.000Z

212

THE ROLE OF METHANOL IN THE CRYSTALLIZATION OF TITAN'S PRIMORDIAL OCEAN  

SciTech Connect

A key parameter that controls the crystallization of primordial oceans in large icy moons is the presence of anti-freeze compounds, which may have maintained primordial oceans over the age of the solar system. Here we investigate the influence of methanol, a possible anti-freeze candidate, on the crystallization of Titan's primordial ocean. Using a thermodynamic model of the solar nebula and assuming a plausible composition of its initial gas phase, we first calculate the condensation sequence of ices in Saturn's feeding zone, and show that in Titan's building blocks methanol can have a mass fraction of {approx}4 wt% relative to water, i.e., methanol can be up to four times more abundant than ammonia. We then combine available data on the phase diagram of the water-methanol system and scaling laws derived from thermal convection to estimate the influence of methanol on the dynamics of the outer ice I shell and on the heat transfer through this layer. For a fraction of methanol consistent with the building blocks composition we determined, the vigor of convection in the ice I shell is strongly reduced. The effect of 5 wt% methanol is equivalent to that of 3 wt% ammonia. Thus, if methanol is present in the primordial ocean of Titan, the crystallization may stop, and a sub-surface ocean may be maintained between the ice I and high-pressure ice layers. A preliminary estimate indicates that the presence of 4 wt% methanol and 1 wt% ammonia may result in an ocean of thickness at least 90 km.

Deschamps, Frederic [Institute of Geophysics, Swiss Federal Institute of Technology Zurich, 8092 Zurich (Switzerland); Mousis, Olivier [Universite de Franche-Comte, Institut UTINAM, CNRS/INSU, UMR 6213, 25030 Besancon Cedex (France); Sanchez-Valle, Carmen [Institute of Geochemistry and Petrology, Swiss Federal Institute of Technology Zurich, 8092 Zurich (Switzerland); Lunine, Jonathan I., E-mail: frederic.deschamps@erdw.ethz.c [Dipartimento di Fisica, Universita degli Studi di Roma 'Tor Vergata', Rome (Italy)

2010-12-01T23:59:59.000Z

213

Modeling thermal comfort in stratified environments  

E-Print Network (OSTI)

Arens E. , and Wang D. 2004. "Thermal sensation and comfortin transient non-uniform thermal environments", European7730, 1994, Moderate Thermal Environments – Determination of

Zhang, H.; Huizenga, C.; Arens, Edward A; Yu, T.

2005-01-01T23:59:59.000Z

214

Ocean Energy Program Overview, Fiscal years 1990--1991. Programs in utility technologies  

DOE Green Energy (OSTI)

The oceans are the world`s largest solar energy collector and storage system. Covering 71% of the earth`s surface, the oceans collect and store this energy as waves, currents, and thermal and salinity gradients. The purpose of the US Department of Energy`s (DOE) Ocean Energy Program is to develop techniques that harness ocean energy cost effectively and in ways that do not harm the environment. The program seeks to develop ocean energy technology to a point at which industry can accurately assess whether the applications of the technology are viable energy conversion alternatives, or supplements to current power-generating systems. In past studies, DOE identified ocean thermal energy conversion (OTEC), which uses the temperature difference between warm surface water and cold deep water, as the most promising of the ocean energy technologies. As a result, the Ocean Energy Program has concentrated research that advances OTEC technology. The program also monitored developments in wave energy, ocean current, and salinity gradient concepts. It is not actively developing these technologies now. The mission of the Ocean Energy Program is to develop techniques to harness the vast solar energy stored in the oceans` waves, currents, and thermal and salinity gradients.

Not Available

1992-05-01T23:59:59.000Z

215

Ocean Health and Human Health  

E-Print Network (OSTI)

et al. 2002. Indicators of ocean health and human health:Nature 423:280–283. Oceans and Human Health Act. 2003. S.Editorial Guest Editorial Ocean Health and Human Health

2004-01-01T23:59:59.000Z

216

Ocean General Circulation Models  

SciTech Connect

1. Definition of Subject The purpose of this text is to provide an introduction to aspects of oceanic general circulation models (OGCMs), an important component of Climate System or Earth System Model (ESM). The role of the ocean in ESMs is described in Chapter XX (EDITOR: PLEASE FIND THE COUPLED CLIMATE or EARTH SYSTEM MODELING CHAPTERS). The emerging need for understanding the Earth’s climate system and especially projecting its future evolution has encouraged scientists to explore the dynamical, physical, and biogeochemical processes in the ocean. Understanding the role of these processes in the climate system is an interesting and challenging scientific subject. For example, a research question how much extra heat or CO2 generated by anthropogenic activities can be stored in the deep ocean is not only scientifically interesting but also important in projecting future climate of the earth. Thus, OGCMs have been developed and applied to investigate the various oceanic processes and their role in the climate system.

Yoon, Jin-Ho; Ma, Po-Lun

2012-09-30T23:59:59.000Z

217

Real-time upper-ocean temperature observations from aircraft during operational hurricane reconnaissance missions: AXBT Demonstration Project year one results  

Science Conference Proceedings (OSTI)

Thousands of aircraft observations of upper-ocean thermal structure have been obtained during hurricane and typhoon research field experiments in recent decades. The results from these experiments suggest a strong correlation between upper-ocean ...

Elizabeth R. Sanabia; Bradford S. Barrett; Peter G. Black; Sue Chen; James A. Cummings

218

The Feasibility of Estimating Ocean Surface Currents on an Operational Basis Using Satellite Feature Tracking Methods  

Science Conference Proceedings (OSTI)

The feasibility of using a relatively new technique, often referred to as satellite feature tracking, for estimating ocean surface currents is described. Sequential satellite imagery is used to determine the displacements of selected ocean ...

L. C. Breaker; D. B. Rao; V. M. Krasnopolsky; X-H. Yan

1994-11-01T23:59:59.000Z

219

Global Ocean Circulation from Satellite Altimetry and High-Resolution Computer Simulation  

Science Conference Proceedings (OSTI)

The sea surface elevation relative to the geoid, a dynamic boundary condition for the three-dimensional oceanic pressure field, is being determined over the global ocean every 10 days by a precision radar altimeter aboard the TOPEX/POSEIDON ...

Lee-Lueng Fu; Richard D. Smith

1996-11-01T23:59:59.000Z

220

Satellite Estimates of Wind Speed and Latent Heat Flux over the Global Oceans  

Science Conference Proceedings (OSTI)

Surface fluxes of momentum, freshwater, and energy across the air–sea interface determine oceanic circulation and its variability at all timescales. The goal of this paper is to estimate and examine some ocean surface flux variables using ...

Abderrahim Bentamy; Kristina B. Katsaros; Alberto M. Mestas-Nuñez; William M. Drennan; Evan B. Forde; Hervé Roquet

2003-02-01T23:59:59.000Z

Note: This page contains sample records for the topic "determination ocean thermal" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


221

The Nature of Predictability Enhancement in a Low-Order Ocean-Atmosphere Model  

Science Conference Proceedings (OSTI)

A low-order moist general circulation model of the coupled ocean-atmosphere system is reexamined to determine the source of short-term predictability enhancement that occurs when an oceanic circulation is activated. The predictability enhancement ...

Jon M. Nese; Arthur J. Miller; John A. Dutton

1996-09-01T23:59:59.000Z

222

Unstable and Damped Equatorial Modes in Simple Coupled Ocean-Atmosphere Models  

Science Conference Proceedings (OSTI)

Free equatorial modes for several simple coupled ocean-atmosphere models are determined. They are found to include unstable and damped modes of large zonal scale and long period. The influence of ocean thermo-dynamics on unstable modal behavior ...

Anthony C. Hirst

1986-03-01T23:59:59.000Z

223

Microbial metabolism in the deep ocean  

E-Print Network (OSTI)

carbon flux through the ocean’s twilight zone. Science 316:sinking particle flux in the ocean’s twilight zone. LimnolRespiration in the dark ocean. Geophys Res Lett 30:doi:

Hansman, Roberta Lynn

2008-01-01T23:59:59.000Z

224

Microbial Metabollism in the Deep Ocean  

E-Print Network (OSTI)

carbon flux through the ocean’s twilight zone. Science 316:sinking particle flux in the ocean’s twilight zone. LimnolRespiration in the dark ocean. Geophys Res Lett 30:doi:

Hansman, Roberta L

2008-01-01T23:59:59.000Z

225

Constraining oceanic dust deposition using surface ocean dissolved Al  

E-Print Network (OSTI)

Constraining oceanic dust deposition using surface ocean dissolved Al Qin Han,1 J. Keith Moore,1; accepted 7 December 2007; published 12 April 2008. [1] We use measurements of ocean surface dissolved Al (DEAD) model to constrain dust deposition to the oceans. Our Al database contains all available

Moore, Keith

226

Ocean bottom seisometer  

SciTech Connect

An improved ocean bottom seismometer is described comprising: a spherical-shaped main housing having a seismic acquisition portion and a ballast portion below the acquisition portion. The ballast portion controls the ascent and descent of the ocean bottom seismometer; a conical skirt fixed to the main housing elevating the main housing above a horizontal plane coincident with a base of the skirt. The skirt is capable of confining fluid under the main housing when the base rests on an ocean bottom; spherical compartments mounted inside the skirt; and a lifting hook mounted on the outside of the main housing.

Neeley, W.P.

1987-09-08T23:59:59.000Z

227

The Impact of Rapid Wind Variability upon Air–Sea Thermal Coupling  

Science Conference Proceedings (OSTI)

The basic effect of extratropical atmosphere–ocean thermal coupling is to enhance the variance of both anomalous sea surface temperatures (SSTs) and air temperatures (AIRT) due to a decreased energy flux between the atmosphere and ocean, called ...

Philip Sura; Matthew Newman

2008-02-01T23:59:59.000Z

228

Ocean Margins Programs, Phase I research summaries  

Science Conference Proceedings (OSTI)

During FY 1992, the DOE restructured its regional coastal-ocean programs into a new Ocean Margins Program (OMP), to: Quantify the ecological and biogeochemical processes and mechanisms that affect the cycling, flux, and storage of carbon and other biogenic elements at the land/ocean interface; Define ocean-margin sources and sinks in global biogeochemical cycles, and; Determine whether continental shelves are quantitatively significant in removing carbon dioxide from the atmosphere and isolating it via burial in sediments or export to the interior ocean. Currently, the DOE Ocean Margins Program supports more than 70 principal and co-principal investigators, spanning more than 30 academic institutions. Research funded by the OMP amounted to about $6.9M in FY 1994. This document is a collection of abstracts summarizing the component projects of Phase I of the OMP. This phase included both research and technology development, and comprised projects of both two and three years duration. The attached abstracts describe the goals, methods, measurement scales, strengths and limitations, and status of each project, and level of support. Keywords are provided to index the various projects. The names, addresses, affiliations, and major areas of expertise of the investigators are provided in appendices.

Verity, P. [ed.

1994-08-01T23:59:59.000Z

229

Thermal single-well injection-withdrawal tracer tests for determining fracture-matrix heat transfer area  

SciTech Connect

Single-well injection-withdrawal (SWIW) tracer tests involve injection of traced fluid and subsequent tracer recovery from the same well, usually with some quiescent time between the injection and withdrawal periods. SWIW are insensitive to variations in advective processes that arise from formation heterogeneities, because upon withdrawal, fluid parcels tend to retrace the paths taken during injection. However, SWIW are sensitive to diffusive processes, such as diffusive exchange of conservative or reactive solutes between fractures and rock matrix. This paper focuses on SWIW tests in which temperature itself is used as a tracer. Numerical simulations demonstrate the sensitivity of temperature returns to fracture-matrix interaction. We consider thermal SWIW response to the two primary reservoir improvements targeted with stimulation, (1) making additional fractures accessible to injected fluids, and (2) increasing the aperture and permeability of pre-existing fractures. It is found that temperature returns in SWIW tests are insensitive to (2), while providing a strong signal of more rapid temperature recovery during the withdrawal phase for (1).

Pruess, K.; Doughty, C.

2010-01-15T23:59:59.000Z

230

Carbon in Atlantic Ocean  

NLE Websites -- All DOE Office Websites (Extended Search)

in Atlantic Ocean About CARINA NDP-091: CARINA Data Synthesis Project The CARINA Group CARINA Cruise Summary Table and Data CARINA Data Products CARINA Database V1.2 ODV Collection...

231

Nonlinear Midlatitude Ocean Adjustment  

Science Conference Proceedings (OSTI)

Ocean adjustment on annual to interdecadal scales to variable forcing is considered for a more nonlinear general circulation than has previously been studied. The nature of the response is a strong function of forcing frequency and importantly ...

William K. Dewar

2003-05-01T23:59:59.000Z

232

Tropical Ocean Circulation Experiments  

Science Conference Proceedings (OSTI)

A primitive equation model of the equatorial Pacific Ocean was forced by realistic wind stress distributions over decades. Results were presented for a set of two experiments. In the first experiment the model was forced by an objectively ...

Mojib Latif

1987-02-01T23:59:59.000Z

233

Modeling the Pacific Ocean  

SciTech Connect

Two numerical models utilizing primitive equations (two momentum equations and a mass continuity equation) simulate the oceanography of the Pacific Ocean from 20{degrees}S to 50{degrees}N. The authors examine the abundant model data through visualization , by animating the appropriate model fields and viewing the time history of each model simulation as a color movie. The animations are used to aid understanding of ocean circulation.

Johnson, M.A.; O' Brien, J.J. (Mesoscale Air-Sea Interaction Group, Florida State Univ., Tallahassee, FL (US))

1990-01-01T23:59:59.000Z

234

ocean energy | OpenEI  

Open Energy Info (EERE)

ocean energy ocean energy Dataset Summary Description This shapefile represents the seasonal winter depth profile to reach water at a temperature of 20ºC. Source NREL Date Released October 28th, 2012 (2 years ago) Date Updated Unknown Keywords depth profile hydrokinetic ocean ocean energy ocean thermal energy conversion OTEC seawater cooling thermal Data application/zip icon OTEC Seawater Cooling 20ºC Depth Profile - Winter Average (zip, 1.1 MiB) Quality Metrics Level of Review Peer Reviewed Comment Temporal and Spatial Coverage Frequency Time Period March 2009 - February 2011 License License Other or unspecified, see optional comment below Comment This GIS data was developed by the National Renewable Energy Laboratory ("NREL"), which is operated by the Alliance for Sustainable Energy, LLC for the U.S. Department of Energy ("DOE"). The user is granted the right, without any fee or cost, to use, copy, modify, alter, enhance and distribute this data for any purpose whatsoever, provided that this entire notice appears in all copies of the data. Further, the user of this data agrees to credit NREL in any publications or software that incorporate or use the data. Access to and use of the GIS data shall further impose the following obligations on the User. The names DOE/NREL may not be used in any advertising or publicity to endorse or promote any product or commercial entity using or incorporating the GIS data unless specific written authorization is obtained from DOE/NREL. The User also understands that DOE/NREL shall not be obligated to provide updates, support, consulting, training or assistance of any kind whatsoever with regard to the use of the GIS data. THE GIS DATA IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL DOE/NREL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER, INCLUDING BUT NOT LIMITED TO CLAIMS ASSOCIATED WITH THE LOSS OF DATA OR PROFITS, WHICH MAY RESULT FROM AN ACTION IN CONTRACT, NEGLIGENCE OR OTHER TORTIOUS CLAIM THAT ARISES OUT OF OR IN CONNECTION WITH THE ACCESS OR USE OF THE GIS DATA. The User acknowledges that access to the GIS data is subject to U.S. Export laws and regulations and any use or transfer of the GIS data must be authorized under those regulations. The User shall not use, distribute, transfer, or transmit GIS data or any products incorporating the GIS data except in compliance with U.S. export regulations. If requested by DOE/NREL, the User agrees to sign written assurances and other export-related documentation as may be required to comply with U.S. export regulations.

235

A method for determining equilibrium thermal expansion of glasses by a large-force vertical quartz dilatometer  

SciTech Connect

Vertical quartz dilatometers with a test load of 1-2N are fairly accurate in determining the coefficient of linear expansion (CLE) for glasses in the frozen-structure temperature range, the accuracy being {+-} 1.5 x 10{sup -7} K{sup -1}. In the high-temperature region, the test load causes the sample to reduce in volume (shrink) in a viscous fashion. Because of this, the temperature slope of the dilatometric curve is changed, and the heating curve acquires a maximum at a temperature corresponding to a glass viscosity of 10{sup 11} - 10{sup 11.5}P.

Tatarintsev, B.V. [Vavilov State Optical Institute, St. Petersburg (Russian Federation)

1993-11-01T23:59:59.000Z

236

CX-003479: Categorical Exclusion Determination | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

479: Categorical Exclusion Determination 479: Categorical Exclusion Determination CX-003479: Categorical Exclusion Determination National Open-Ocean Energy Laboratory CX(s) Applied: A9, A11, B3.1, B3.3, B3.6 Date: 08/18/2010 Location(s): Florida Office(s): Energy Efficiency and Renewable Energy, Golden Field Office Florida Atlantic University (FAU) proposes to use Congressionally Directed Funding through the Department of Energy to study the energy potential of the Gulf Stream and currents off the coast of Florida. Their goals are to further the assessment of hydrokinetic and thermal ocean-energy resources off the east coast of Florida and to advance the development of those resources for commercial-scale electrical power production. DOCUMENT(S) AVAILABLE FOR DOWNLOAD CX-003479.pdf More Documents & Publications

237

CX-003102: Categorical Exclusion Determination | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

02: Categorical Exclusion Determination 02: Categorical Exclusion Determination CX-003102: Categorical Exclusion Determination Center of Excellence in Ocean Research and Development CX(s) Applied: A9, B3.1, B3.3 Date: 07/14/2010 Location(s): Florida Office(s): Energy Efficiency and Renewable Energy, Golden Field Office Florida Atlantic University (FAU) proposes to use Congressionally Directed Funding through the Department of Energy to study the energy potential of the Gulf Stream and currents off the coast of Florida. Their goals are to further the assessment of hydrokinetic and thermal ocean-energy resources off the east coast of Florida and to advance the development of those resources for commercial-scale electrical power production. DOCUMENT(S) AVAILABLE FOR DOWNLOAD CX-003102.pdf More Documents & Publications

238

1138 JOURNAL OF CLIMATE VOLUME 24 Observational Evidence for Oceanic Controls on Hurricane Intensity  

E-Print Network (OSTI)

The influence of oceanic changes on tropical cyclone activity is investigated using observational estimates of sea surface temperature (SST), air–sea fluxes, and ocean subsurface thermal structure during the period 1998– 2007. SST conditions are examined before, during, and after the passage of tropical cyclones, through Lagrangian composites along cyclone tracks across all ocean basins, with particular focus on the North Atlantic. The influence of translation speed is explored by separating tropical cyclones according to the translation

Ian D. Lloyd; Gabriel A. Vecchi

2010-01-01T23:59:59.000Z

239

Three-dimensional ocean chlorophyll distributionsfrom underwater  

E-Print Network (OSTI)

Three-dimensional ocean chlorophyll distributionsfrom underwater serial-sectioned fluorescence images Andrew W. Palowitch and Jules S. Jaffe An underwater optical serial-sectioning technique that the underwater optical serial- sectioning technique is practical for in situ determination and analysis

Jaffe, Jules

240

Categorical Exclusion Determinations: Hawaii | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Hawaii Hawaii Categorical Exclusion Determinations: Hawaii Location Categorical Exclusion Determinations issued for actions in Hawaii. DOCUMENTS AVAILABLE FOR DOWNLOAD November 24, 2010 CX-004536: Categorical Exclusion Determination Subtask 2.4 Ocean Thermal Energy Conversion Facility - University of Hawaii CX(s) Applied: A9, A11 Date: 11/24/2010 Location(s): Hawaii Office(s): Energy Efficiency and Renewable Energy, Golden Field Office September 29, 2010 CX-004093: Categorical Exclusion Determination Subtask 2.3 Makai Research Pier: National Marine Renewable Energy Center in Hawaii CX(s) Applied: A9 Date: 09/29/2010 Location(s): Hawaii Office(s): Energy Efficiency and Renewable Energy, Golden Field Office September 29, 2010 CX-004162: Categorical Exclusion Determination

Note: This page contains sample records for the topic "determination ocean thermal" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


241

Observation of the Power Spectrum of Ocean Waves Using a Cloverleaf Buoy  

Science Conference Proceedings (OSTI)

The power spectra of typical sets of ocean wave data obtained in the open ocean using a cloverleaf buoy are analyzed to determine an idealized form for the spectrum of ocean surface waves. It is shown that most of the single-peaked spectra ...

Hisashi Mitsuyasu; Fukuzo Tasai; Toshiro Suhara; Shinjiro Mizuno; Makoto Ohkusu; Tadao Honda; Kunio Rikiishi

1980-02-01T23:59:59.000Z

242

CX-000902: Categorical Exclusion Determination | Department of...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Exclusion Determination CX-000902: Categorical Exclusion Determination Assessment of Energy Production Potential from Ocean Currents along the United States Coastline CX(s)...

243

CX-005952: Categorical Exclusion Determination | Department of...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Exclusion Determination CX-005952: Categorical Exclusion Determination North Carolina Offshore Wind Feasibility Study: Ocean Wind Energy Analysis - Revised CX(s) Applied: A1,...

244

CX-000900: Categorical Exclusion Determination | Department of...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Determination CX-000900: Categorical Exclusion Determination An Assessment of Projected Life-Cycle Cost for Wave, Tidal, Ocean Current, and In-Stream Hydrokinetic Power in the...

245

Mesoscale Coupled Ocean-Atmosphere Interaction  

E-Print Network (OSTI)

small-scale features in ocean winds. Science, 303, Chelton,of the regional coupled ocean-atmosphere model RCAO. Borealstress dependence on ocean surface velocity: implications

Seo, Hyodae

2007-01-01T23:59:59.000Z

246

Mesoscale coupled ocean-atmosphere interaction  

E-Print Network (OSTI)

small-scale features in ocean winds. Science, 303, Chelton,of the regional coupled ocean-atmosphere model RCAO. Borealstress dependence on ocean surface velocity: implications

Seo, Hyodae

2007-01-01T23:59:59.000Z

247

Ocean - Community Practice Block | Data.gov  

NLE Websites -- All DOE Office Websites (Extended Search)

Community Practice Block Ocean Data Tools Technical Guide Map Gallery Regional Planning Feedback Ocean You are here Data.gov Communities Ocean...

248

Mesozooplankton trophic variability in a changing ocean  

E-Print Network (OSTI)

trends in contemporary ocean productivity. Nature 444: 752-Gyre Oscillation links ocean climate and ecosystem change.biomass from satellite ocean colour. J. Mar. Syst. 78: 18-

Décima, Moira

2011-01-01T23:59:59.000Z

249

Ocean Map National | Data.gov  

NLE Websites -- All DOE Office Websites (Extended Search)

National Ocean Data Tools Technical Guide Map Gallery Regional Planning Feedback Ocean You are here Data.gov Communities Ocean Featured Maps The following maps are from data...

250

Ocean Feedback Form | Data.gov  

NLE Websites -- All DOE Office Websites (Extended Search)

Feedback Form Ocean Data Tools Technical Guide Map Gallery Regional Planning Feedback Ocean You are here Data.gov Communities Ocean Comments or Suggestions Name * Email Topic...

251

Vertical Heat Transport by Ocean Circulation and the Role of Mechanical and Haline Forcing  

Science Conference Proceedings (OSTI)

Vertical transport of heat by ocean circulation is investigated using a coupled climate model and novel thermodynamic methods. Using a streamfunction in temperature–depth coordinates, cells are identified by whether they are thermally direct (flux ...

Jan D. Zika; Willem P. Sijp; Matthew H. England

2013-10-01T23:59:59.000Z

252

Decadal Variability in an Idealized Ocean Model and Its Sensitivity to Surface Boundary Conditions  

Science Conference Proceedings (OSTI)

Variability in a three-dimensional ocean model of idealized geometry is analyzed. The variability is induced in the model by adding a stochastic component to the surface buoyancy forcing. The influence of the surface thermal forcing on the model ...

A. Capotondi; W. R. Holland

1997-06-01T23:59:59.000Z

253

Vertical Heat Transport by the Ocean Circulation and the Role of Mechanical and Haline Forcing  

Science Conference Proceedings (OSTI)

Vertical transport of heat by the ocean circulation is investigated using a coupled-climate model and novel thermodynamic methods. Using a streamfunction in temperature-depth coordinates, cells are identified by whether they are thermally direct (...

Jan D. Zika; Willem P. Sijp; Matthew H. England

254

Ocean Eddy Dynamics in a Coupled Ocean–Atmosphere Model  

Science Conference Proceedings (OSTI)

The role of mesoscale oceanic eddies is analyzed in a quasigeostrophic coupled ocean–atmosphere model operating at a large Reynolds number. The model dynamics are characterized by decadal variability that involves nonlinear adjustment of the ...

P. Berloff; W. Dewar; S. Kravtsov; J. McWilliams

2007-05-01T23:59:59.000Z

255

Indian Ocean Intraseasonal Variability in an Ocean General Circulation Model  

Science Conference Proceedings (OSTI)

The impact of atmospheric intraseasonal variability on the tropical Indian Ocean is examined with an ocean general circulation model (OGCM). The model is forced by observation-based wind stresses and surface heat fluxes from an atmospheric ...

A. Schiller; J. S. Godfrey

2003-01-01T23:59:59.000Z

256

Multiple Oscillatory Modes of the Global Ocean Circulation  

Science Conference Proceedings (OSTI)

For the first time, the (linear) stability of the global ocean circulation has been determined explicitly. In a low-resolution general circulation model, a steady state is computed directly by solving the elliptic boundary value problem. The ...

Wilbert Weijer; Henk A. Dijkstra

2003-11-01T23:59:59.000Z

257

Setting the Scales of the Ocean Response to Isolated Convection  

Science Conference Proceedings (OSTI)

The ocean response to negative buoyancy flux, applied in an isolated region at the surface, is investigated to determine the scales of the equilibrium state, that is, the time to reach equilibrium, the equilibrium density anomaly within the ...

David C. Chapman

1998-04-01T23:59:59.000Z

258

Initial Conditions for a General Circulation Model of Tropical Oceans  

Science Conference Proceedings (OSTI)

A general circulation model of the tropical Pacific Ocean, which realistically simulates El Niño of 1982–83, has been used to determine how different initial conditions affect the model. Given arbitrary initial conditions (not in equilibrium with ...

S. G. H. Philander; W. J. Hurlin; R. C. Pacanowski

1987-01-01T23:59:59.000Z

259

Factors Affecting Heat Transport in an Ocean General Circulation Model  

Science Conference Proceedings (OSTI)

A global ocean general circulation model with idealized geometry and coupled to a simple representation of atmospheric energy fluxes is used to investigate which physical factors determine meridional heat transport. A particular focus is on ...

Igor Kamenkovich; Jochem Marotzke; Peter H. Stone

2000-01-01T23:59:59.000Z

260

A Comment on Long Waves in the Pacific Ocean  

Science Conference Proceedings (OSTI)

Surface currents near the equator in the eastern Pacific Ocean fluctuate with periods of 21–30 days. Channel model experiments determined that these changes in oscillations are attributed to variations in the intensity of the South Equatorial ...

Anne D. Seigel

1985-12-01T23:59:59.000Z

Note: This page contains sample records for the topic "determination ocean thermal" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


261

Vorticity Dynamics and Zonally Averaged Ocean Circulation Models  

Science Conference Proceedings (OSTI)

Diagnostic equations relating the zonally averaged overturning circulation to north–south density variations are derived and used to determine a new closure scheme for use in zonally averaged ocean models. The presentation clarifies the dynamical ...

Daniel G. Wright; Cornelis B. Vreugdenhil; Tertia M. C. Hughes

1995-09-01T23:59:59.000Z

262

Categorical Exclusion (CX) Determinations By Date | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

0, 2012 0, 2012 CX-008625: Categorical Exclusion Determination Abandonment of M-Area Oil Injection Wells CX(s) Applied: B3.1 Date: 06/20/2012 Location(s): South Carolina Offices(s): Savannah River Operations Office June 20, 2012 CX-008624: Categorical Exclusion Determination Abandonment of the Western Sector Dynamic Underground Stripping (DUS) Project Steam Injection Wells CX(s) Applied: B3.1 Date: 06/20/2012 Location(s): South Carolina Offices(s): Savannah River Operations Office June 20, 2012 CX-008623: Categorical Exclusion Determination Perform Thermal Analysis and Thermal Exposures (TG-DTA) CX(s) Applied: B3.6 Date: 06/20/2012 Location(s): South Carolina Offices(s): Savannah River Operations Office June 20, 2012 CX-008546: Categorical Exclusion Determination National Open-ocean Energy Laboratory

263

Interactions of the Tropical Oceans  

Science Conference Proceedings (OSTI)

The authors have investigated the interactions of the tropical oceans on interannual timescales by conducting a series of uncoupled atmospheric and oceanic general circulation experiments and hybrid-coupled model simulations. The results ...

M. Latif; T. P. Barnett

1995-04-01T23:59:59.000Z

264

Energy Basics: Ocean Energy Technologies  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

Energy Technologies Photo of low waves in the ocean. A dock is visible in the background. Oceans cover more than 70% of the Earth's surface. As the world's largest solar...

265

Near-Inertial Ocean Current Response to Hurricane Frederic  

Science Conference Proceedings (OSTI)

Hurricane Frederic passed with 80 to 130 km of the U.S. Naval Oceanographic Office current meter arrays in water depths ranging from 100 to 470 m near the DeSoto Canyon region, and within 150 km of an Ocean Thermal Energy Conversion (OTEC) ...

Lynn K. Shay; Russell L. Elsberry

1987-08-01T23:59:59.000Z

266

On the Climatic Impact of Ocean Circulation  

Science Conference Proceedings (OSTI)

Integrations of coupled climate models with mixed-layer and fixed-current ocean components are used to explore the climatic response to varying magnitudes of ocean circulation. Four mixed-layer ocean experiments without ocean heat transports are ...

Michael Winton

2003-09-01T23:59:59.000Z

267

Ocean energy conversion systems annual research report  

DOE Green Energy (OSTI)

Alternative power cycle concepts to the closed-cycle Rankine are evaluated and those that show potential for delivering power in a cost-effective and environmentally acceptable fashion are explored. Concepts are classified according to the ocean energy resource: thermal, waves, currents, and salinity gradient. Research projects have been funded and reported in each of these areas. The lift of seawater entrained in a vertical steam flow can provide potential energy for a conventional hydraulic turbine conversion system. Quantification of the process and assessment of potential costs must be completed to support concept evaluation. Exploratory development is being completed in thermoelectricity and 2-phase nozzles for other thermal concepts. Wave energy concepts are being evaluated by analysis and model testing with present emphasis on pneumatic turbines and wave focussing. Likewise, several conversion approaches to ocean current energy are being evaluated. The use of salinity resources requires further research in membranes or the development of membraneless processes. Using the thermal resource in a Claude cycle process as a power converter is promising, and a program of R and D and subsystem development has been initiated to provide confirmation of the preliminary conclusion.

Not Available

1981-03-01T23:59:59.000Z

268

An Ocean Dynamical Thermostat  

Science Conference Proceedings (OSTI)

The role of ocean dynamics in the regulation of tropical sea surface temperatures (SSTs) is investigated using the Zebiak-Cane coupled occan-atmosphere model. The model is forced with a uniform heating, or cooling, varying between ±40 W m?2 into ...

Amy C. Clement; Richard Seager; Mark A. Cane; Stephen E. Zebiak

1996-09-01T23:59:59.000Z

269

Navigating oceans of data  

Science Conference Proceedings (OSTI)

Some science domains have the advantage that the bulk of the data comes from a single source instrument, such as a telescope or particle collider. More commonly, big data implies a big variety of data sources. For example, the Center for Coastal Margin ... Keywords: environmental data, ocean observatories, spatial-temporal data management

David Maier; V. M. Megler; António M. Baptista; Alex Jaramillo; Charles Seaton; Paul J. Turner

2012-06-01T23:59:59.000Z

270

Ecological analysis of spatial and temporal patterns of pelagic ecosystem components potentially interacting with an OTEC (Ocean Thermal Energy Conversion) plant near Punta Tuna, Puerto Rico: physical characteristics. Final report  

SciTech Connect

This hydrographic study characterizes the Punta Tuna area as a potential site for an OTEC power plant. Seven cruises were conducted at approximately two month intervals. Each cruise included at least 22 hydrocast stations, six done as serial stations in a small area to reveal temporal and small scale variability. The results of the analysis of these data so far indicate a bi-seasonality in the dynamics. Mesoscale eddies and meanders are a common feature of the circulation pattern on Puerto Rico's southern coast. The time series studies have shown their existence of a very energetic internal wave field with relatively large amplitude waves at the diurnal and semi-diurnal tidal frequencies. The results in terms of an OTEC power plant indicate the thermal resource to be at least a 20C thermal gradient in the upper 100 m year round.

Lopez, J.M.; Tilly, L.J.

1983-01-01T23:59:59.000Z

271

Equilibrium Response of Ocean Deep-Water Circulation to Variations in Ekman Pumping and Deep-Water Sources  

Science Conference Proceedings (OSTI)

A multilayer ocean model that is physically simple and computationally efficient is developed for studies of competition and interaction among deep-water sources in determining ocean circulation. The model is essentially geostrophic and ...

F. L. Yin; I. Y. Fung; C. K. Chu

1992-10-01T23:59:59.000Z

272

Why Sequence Subarctic Pacific Ocean?  

NLE Websites -- All DOE Office Websites (Extended Search)

Sequence Subarctic Pacific Ocean? Sequence Subarctic Pacific Ocean? The subarctic Pacific Ocean is one of the areas considered particularly vulnerable to acidification, which could affect the ocean's ability to act as a carbon sink. Global warming affects the food webs and biodiversity in marine ecosystems, especially in regions known as oxygen minimum zones where key components of the global carbon cycle take place. Oxygen minimum zones are found between 200 and 1,000 meters below sea level in the subarctic Pacific, the eastern South Pacific Ocean, the northern parts of the Indian Ocean and Arabian Sea, and off southwestern Africa. As global warming continues, researchers believe the oxygen levels in the oceans will decrease, a change that will extend the boundaries of the oxygen minimum

273

Extracting Multiyear Surface Currents from Sequential Thermal Imagery Using the Maximum Cross-Correlation Technique  

Science Conference Proceedings (OSTI)

Ocean surface circulation can be estimated by automated tracking of thermal infrared features in pairs of sequential satellite imagery. A 7-yr time series of velocity, extracted from thermal imagery of the East Australian Current using the ...

Melissa M. Bowen; William J. Emery; John L. Wilkin; Paul C. Tildesley; Ian J. Barton; Rebecca Knewtson

2002-10-01T23:59:59.000Z

274

Categorical Exclusion Determinations: Golden Field Office | Department of  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

14, 2010 14, 2010 CX-004743: Categorical Exclusion Determination New River Solar Thermal Hot Water Project CX(s) Applied: B5.1 Date: 12/14/2010 Location(s): Virginia Office(s): Energy Efficiency and Renewable Energy, Golden Field Office December 14, 2010 CX-004741: Categorical Exclusion Determination Ocean Thermal Energy Conversion Cold Water Pipe-Platform Subsystem Dynamic Interaction Validation CX(s) Applied: A9, B3.6 Date: 12/14/2010 Location(s): Manassas, Virginia Office(s): Energy Efficiency and Renewable Energy, Golden Field Office December 14, 2010 CX-004739: Categorical Exclusion Determination Evaluation of Wilcox Geothermal Reservoir and Demonstration of Geothermal Energy Production -Phase 1 CX(s) Applied: A9, B3.1 Date: 12/14/2010 Location(s): Texas Office(s): Energy Efficiency and Renewable Energy, Golden Field Office

275

A sustained oscillation in a toy-model of the coupled atmosphere-ocean system  

E-Print Network (OSTI)

Interaction between atmospheric mid-latitude flow and wind-driven ocean circulation is studied coupling two idealized low-order spectral models. The barotropic Charney-DeVore model with three components simulates a bimodal mid-latitude atmospheric circulation in a channel with two stable flow patterns induced by topography. The wind-driven ocean double gyre circulation in a square basin (of half the channel length) is modeled by an equivalent barotropic formulation of the Veronis model with 21 components, which captures Rossby-wave dynamics and nonlinear decadal variability. When coupled, the atmosphere forces the ocean by wind-stress while, simultaneously, the ocean affects the atmosphere by thermal forcing in terms of a vorticity source. Coupled atmosphere-ocean simulations show two stable flow patterns associated with the topographically induced atmospheric bimodality and a sustained oscillation due to interaction between atmospheric bimodality and oceanic Rossby dynamics. The oscillation is of inter-annua...

Bothe, Oliver

2011-01-01T23:59:59.000Z

276

Ocean Informatics Monograph. Ocean Informatics Initiative: an Ethnographic Study (2002-2006). Part 1: Report  

E-Print Network (OSTI)

Collaborative Care and Ocean Informatics. Proceedings of theOceanography: Probing the Oceans, 1936-1978. San Diego, CA:Collaboration: Towards an Ocean Informatics Environment.

Millerand, Florence; Baker, Karen S

2011-01-01T23:59:59.000Z

277

Ocean Informatics Monograph. Ocean Informatics Initiative: an Ethnographic Study (2002-2006). Part 2: Appendices  

E-Print Network (OSTI)

Scientific Digital Delivery Ocean Informatics: Shaun HaberResearch Publications about the Ocean Informatics initiativeF. and K.S. Baker (2011). Ocean Informatics Monograph (2002-

Millerand, Florence; Baker, Karen S

2011-01-01T23:59:59.000Z

278

Definition: Thermal Gradient Holes | Open Energy Information  

Open Energy Info (EERE)

Gradient Holes Jump to: navigation, search Dictionary.png Thermal Gradient Holes "A hole logged by a temperature probe to determine the thermal gradient. Usually involves a hole...

279

Determining the effect of thermal loading on the remaining useful life of a power transformer from its impedance versus frequency characteristic  

SciTech Connect

It is well known that cellulose materials used to insulate transformer windings gradually degrade during service due to a combination of thermal, mechanical, and electrical stresses. As a result the mechanical characteristics of the paper change during use and may affect the useful life of the transformer. It has generally been assumed that the electrical characteristics remain relatively constant throughout the aging process. If, however, thermal aging changes the electrical characteristics, it may be possible to gauge the thermal age of a transformer by externally monitoring these electrical characteristics over time. In this work, samples of oil impregnated thermally upgraded Kraft insulating paper are subjected to accelerated thermal aging. The relative dielectric constant and loss tangent are investigated by monitoring changes in capacitance and conductance as a function of frequency and thermal aging. This paper presents data showing that the thermal aging process produces changes in the electrical characteristics of the insulating system paper. An example is presented comparing the admittance versus frequency for a model of a 765 kV 500 MVA auto transformer. This demonstrates that the effect of aging can theoretically be observed from the terminals of the transformer.

Batruni, R.; Degeneff, R.C. [Rensselaer Polytechnic Inst., Troy, NY (United States). Electric Power Engineering Dept.; Lebow, M.A. [Consolidated Edison Co., New York, NY (United States)

1996-07-01T23:59:59.000Z

280

NOS Point Forecast Guidance to Weather and Ocean Conditions ...  

NLE Websites -- All DOE Office Websites (Extended Search)

Point Forecast Guidance to Weather and Ocean Conditions Ocean Data Tools Technical Guide Map Gallery Regional Planning Feedback Ocean You are here Data.gov Communities Ocean...

Note: This page contains sample records for the topic "determination ocean thermal" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


281

ocean - faq right side block | Data.gov  

NLE Websites -- All DOE Office Websites (Extended Search)

ocean - faq right side block Ocean Data Tools Technical Guide Map Gallery Regional Planning Feedback Ocean You are here Data.gov Communities Ocean Frequently Asked Questions...

282

Ocean Renewable Power Company LLC | Open Energy Information  

Open Energy Info (EERE)

Ocean Renewable Power Company LLC Jump to: navigation, search Name Ocean Renewable Power Company LLC Place Portland, Maine Zip 4101 Sector Ocean, Renewable Energy Product Ocean...

283

CX-010296: Categorical Exclusion Determination | Department of...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

6: Categorical Exclusion Determination CX-010296: Categorical Exclusion Determination Thermal Barrier Coatings for the LTC Engine - Heat Loss, Combustion, Thermal vs. Catalytic...

284

CX-009575: Categorical Exclusion Determination | Department of...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Categorical Exclusion Determination Improving Atmospheric Models for Offshore Wind Resource Mapping and Prediction Using LIDAR, Aircraft and In-Ocean Observations CX(s)...

285

CX-000947: Categorical Exclusion Determination | Department of...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Categorical Exclusion Determination Gulf of Mexico 3-Dimensional Operational Ocean Forecast System Pilot Project (Raleigh) CX(s) Applied: A9 Date: 03012010 Location(s):...

286

CX-000949: Categorical Exclusion Determination | Department of...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Categorical Exclusion Determination Gulf of Mexico 3-Dimensional Operational Ocean Forecast System Pilot Project (Princeton) CX(s) Applied: A9 Date: 03012010 Location(s): New...

287

CX-000946: Categorical Exclusion Determination | Department of...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Categorical Exclusion Determination Gulf of Mexico 3-Dimensional Operational Ocean Forecast System Pilot Project (Portland) CX(s) Applied: A9 Date: 03012010 Location(s):...

288

Categorical Exclusion (CX) Determinations By Date | Department...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Categorical Exclusion Determination Gulf of Mexico 3-Dimensional Operational Ocean Forecast System Pilot Project (Portland) CX(s) Applied: A9 Date: 03012010 Location(s):...

289

CX-000951: Categorical Exclusion Determination | Department of...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Categorical Exclusion Determination Gulf of Mexico 3-Dimensional Operational Ocean Forecast System Pilot Project (Los Angeles) CX(s) Applied: A9 Date: 03012010 Location(s):...

290

CX-000950: Categorical Exclusion Determination | Department of...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Categorical Exclusion Determination Gulf of Mexico 3-Dimensional Operational Ocean Forecast System Pilot Project (College Station) CX(s) Applied: A9 Date: 03012010...

291

CX-000948: Categorical Exclusion Determination | Department of...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Categorical Exclusion Determination Gulf of Mexico 3-Dimensional Operational Ocean Forecast System Pilot Project (Stennis Space Center) CX(s) Applied: A9 Date: 03012010...

292

Categorical Exclusion (CX) Determinations By Date | Department...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Categorical Exclusion Determination Gulf of Mexico 3-Dimensional Operational Ocean Forecast System Pilot Project (Los Angeles) CX(s) Applied: A9 Date: 03012010 Location(s):...

293

Convergence Rate and Stability of Ocean-Atmosphere Coupling Schemes with a Zero-Dimensional Climate Model  

Science Conference Proceedings (OSTI)

A zero-dimensional climate model is considered with three thermal reservoirs, i.e., the atmosphere, the surface mixed layer and the intermediate water of the ocean. Realistic values are adopted for the rates of heat transfer between those ...

Robert E. Dickinson

1981-10-01T23:59:59.000Z

294

THERMAL RECOVERY  

NLE Websites -- All DOE Office Websites (Extended Search)

THERMAL RECOVERY Thermal recovery comprises the techniques of steamflooding, cyclic steam stimulation, and in situ combustion. In steamflooding, high-temperature steam is injected...

295

Arctic Ocean circulation patterns revealed by GRACE  

Science Conference Proceedings (OSTI)

Measurements of ocean bottom pressure (OBP) anomalies from the satellite mission GRACE, complemented by information from two ocean models, are used to investigate the variations and distribution of the Arctic Ocean mass from 2002 through 2011. The ...

Cecilia Peralta-Ferriz; James H. Morison; John M. Wallace; Jennifer A. Bonin; Jinlun Zhang

296

The bottom of the ocean food chain  

NLE Websites -- All DOE Office Websites (Extended Search)

The bottom of the ocean food chain 1663 Los Alamos science and technology magazine Latest Issue:July 2013 All Issues submit The bottom of the ocean food chain Global ocean...

297

Strong wind forcing of the ocean  

E-Print Network (OSTI)

of Geophysical Research-Oceans, 107 (C2). Vanderbilt, V .in the subtropical pacific ocean. Science, 316, 1017^1021.simulations of the upper ocean's response to hurricane felix

Zedler, Sarah E.

2007-01-01T23:59:59.000Z

298

Connecting Changing Ocean Circulation with Changing Climate  

Science Conference Proceedings (OSTI)

The influence of changing ocean currents on climate change is evaluated by comparing an earth system model’s response to increased CO2 with and without an ocean circulation response. Inhibiting the ocean circulation response, by specifying a ...

Michael Winton; Stephen M. Griffies; Bonita L. Samuels; Jorge L. Sarmiento; Thomas L. Frölicher

2013-04-01T23:59:59.000Z

299

Iron Availability in the Southern Ocean  

NLE Websites -- All DOE Office Websites (Extended Search)

Iron Availability in the Southern Ocean Iron Availability in the Southern Ocean Print Friday, 21 June 2013 10:08 The Southern Ocean, circling the Earth between Antarctica and the...

300

Climate, Ocean and Sea Ice Modeling  

NLE Websites -- All DOE Office Websites (Extended Search)

Climate, Ocean and Sea Ice Modeling (COSIM) Summary The COSIM project develops advanced ocean and ice models for evaluating the role of ocean and ice in high-latitude climate...

Note: This page contains sample records for the topic "determination ocean thermal" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


301

Hanohano:A Deep Ocean Antineutrino Observatory  

E-Print Network (OSTI)

This paper presents the science potential of a deep ocean antineutrino observatory being developed at Hawaii and elsewhere. The observatory design allows for relocation from one site to another. Positioning the observaory some 60 km distant from a nuclear reactor complex enables preecision measurement of neutrino mixing parameters, leading to a determination of neutrino mass hierarchy and theta_13. At a mid-Pacific location, the observatory measures the flux of uranium and thorium decay series antineutrinos from earth's mantle and performs a sensitive search for a hypothetical natural fission reactor in earth's core. A subequent deployment at another mid-ocean location would test lateral homogeneity of uranium and thorium in earth's mantle. These measurements have significance for earth energy studies.

Batygov, M; Learned, J G; Matsuno, S; Pakvasa, S; Varner, G

2008-01-01T23:59:59.000Z

302

Hanohano:A Deep Ocean Antineutrino Observatory  

E-Print Network (OSTI)

This paper presents the science potential of a deep ocean antineutrino observatory being developed at Hawaii and elsewhere. The observatory design allows for relocation from one site to another. Positioning the observaory some 60 km distant from a nuclear reactor complex enables preecision measurement of neutrino mixing parameters, leading to a determination of neutrino mass hierarchy and theta_13. At a mid-Pacific location, the observatory measures the flux of uranium and thorium decay series antineutrinos from earth's mantle and performs a sensitive search for a hypothetical natural fission reactor in earth's core. A subequent deployment at another mid-ocean location would test lateral homogeneity of uranium and thorium in earth's mantle. These measurements have significance for earth energy studies.

M. Batygov; S. T. Dye; J. G. Learned; S. Matsuno; S. Pakvasa; G. Varner

2008-10-03T23:59:59.000Z

303

Ocean Tidal and Wave Energy  

Science Conference Proceedings (OSTI)

First published in 2000, the annual Renewable Energy Technical Assessment Guide (TAG-RE) provides a consistent basis for evaluating the economic feasibility of renewable generation technologies. This excerpt from the 2005 TAG-RE addresses ocean tidal and wave energy conversion technologies, which offer promise for converting the significant energy potential available in ocean tidal currents and waves to electricity in the future.

2005-12-19T23:59:59.000Z

304

Ocean Navitas | Open Energy Information  

Open Energy Info (EERE)

Navitas Navitas Jump to: navigation, search Name Ocean Navitas Address Nursery House Place United Kingdom Zip DN21 5BQ Sector Ocean Product Ocean Navitas was incorporated in May 2006 by experienced engineers, businessmen and sailing enthusiasts David Hunt, James McCague and Simon Condry. Website http://www.oceannavitas.com Region United Kingdom References Ocean NavitasUNIQ75db538f85b32404-ref-000014E2-QINU LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This company is listed in the Marine and Hydrokinetic Technology Database. This company is involved in the following MHK Projects: Ocean Navitas NaREC This company is involved in the following MHK Technologies: Aegir Dynamo This article is a stub. You can help OpenEI by expanding it.

305

Ocean - FAQ | Data.gov  

NLE Websites -- All DOE Office Websites (Extended Search)

FAQ FAQ Ocean Data Tools Technical Guide Map Gallery Regional Planning Feedback Ocean You are here Data.gov » Communities » Ocean Frequently Asked Questions Following are some Frequently Asked Questions, we hope to add to this list as we hear from you. Questions What is Ocean.data.gov? How can I use this resource? What data can I expect to find here? Where do these data come from? Can data from State and academic sources be included in this portal? Who can suggest data and information to be included in Ocean.data.gov? Who decides what data are included? How do I get involved? How does this differ from other data efforts such as regional data portals? Where do I find information about data standards, metadata standards, and formats? Can we provide feedback about a particular dataset?

306

The Global Impact of Ocean Nourishment  

NLE Websites -- All DOE Office Websites (Extended Search)

of the ocean to sequester atmospheric carbon dioxide and to increase the sustainable fish catch. The present annual level of photosynthetic activity of the upper ocean is...

307

Green Ocean Wave Energy | Open Energy Information  

Open Energy Info (EERE)

Ocean Wave Energy Jump to: navigation, search Name Green Ocean Wave Energy Sector Marine and Hydrokinetic Website http:http:www.greenoceanwa Region United States LinkedIn...

308

Iron Availability in the Southern Ocean  

NLE Websites -- All DOE Office Websites (Extended Search)

Iron Availability in the Southern Ocean Print The Southern Ocean, circling the Earth between Antarctica and the southernmost regions of Africa, South America, and Australia, is...

309

The Application and Verification of ASHRAE 152-2004 (Method of Test for Determining the Design and Seasonal Efficiencies of Residential Thermal Distribution Systems) to DOE-2-1e Simulation Program  

E-Print Network (OSTI)

This report describes the application and verification of duct model on DOE 2.1e version 119 using ASHRAE 152-2004 (Method of Test for Determining the Design and Seasonal Efficiencies of Residential Thermal Distribution Systems). It begins with a concept of duct model which is developed by ASHRAE and shows the application and the verification of the duct model to DOE 2.1e version 119 simulation program.

Kim, S.; Haberl, J. S.

2008-06-01T23:59:59.000Z

310

Oceanic shipping soundscapes.  

Science Conference Proceedings (OSTI)

Shipping and wind are key sources in the oceanic soundscape that affects marine mammal habitats. A new method of forming such soundscapes is presented. Frequency and range dependent transmission losses are precomputed from a grid of virtual sources using fast ray computations (BELLHOP) on a specified number of radial lines. Each radial line samples the bathymetry along its bearing out to a given maximum range. A shipping soundscape is then estimated by assigning a source spectral density level (dB re 1 ? Pa2/Hz) and a shipping density (number of ships per unit area per unit time) to the various grid nodes. Such density values are obtained directly from ships carrying an automatic identification system (AIS) that transmit information such as ship type

Christian de Moustier; Michael Porter

2011-01-01T23:59:59.000Z

311

Atmospheric and Oceanic Simulation  

E-Print Network (OSTI)

Introduction It is widely recognized that internal tides have strong influence on the global thermohaline circulation, because it contribute significantly to deep ocean mixing, the essential process for the maintenance of the thermohaline circulation [Munk and Wunsch, 1998]. Internal tides generated by strong tide-topography interactions occasionally break causing intense turbulent mixing [Lien and Gregg, 2001]. Turbulent mixing may also be induced far from wave generation sites, because propagating internal tides can nonlinearly interact with the background internal waves and cascade part of their energy down to small scales where breaking can occur. The East China Sea and adjacent seas are one of the most important generation regions of internal tides, and hence the associated turbulent mixing. Indeed, using a two-dimensional analytical model, Baines [1982] predicted that the continental shelf slope in the East China Sea is the second largest generator of the M 2 internal tide amon

Niwa; Group Representative

2003-01-01T23:59:59.000Z

312

Solar thermal aircraft  

DOE Patents (OSTI)

A solar thermal powered aircraft powered by heat energy from the sun. A heat engine, such as a Stirling engine, is carried by the aircraft body for producing power for a propulsion mechanism, such as a propeller. The heat engine has a thermal battery in thermal contact with it so that heat is supplied from the thermal battery. A solar concentrator, such as reflective parabolic trough, is movably connected to an optically transparent section of the aircraft body for receiving and concentrating solar energy from within the aircraft. Concentrated solar energy is collected by a heat collection and transport conduit, and heat transported to the thermal battery. A solar tracker includes a heliostat for determining optimal alignment with the sun, and a drive motor actuating the solar concentrator into optimal alignment with the sun based on a determination by the heliostat.

Bennett, Charles L. (Livermore, CA)

2007-09-18T23:59:59.000Z

313

Preliminary requirements for thermal storage subsystems in solar thermal applications  

DOE Green Energy (OSTI)

Methodologies for the analysis of value and comparing thermal storage concepts are presented. Value is a measure of worth and is determined by the cost of conventional fuel systems. Value data for thermal storage in large solar thermal electric power applications are presented. Thermal storage concepts must be compared when all are performing the same mission. A method for doing that analysis, called the ranking index, is derived. Necessary data to use the methodology are included.

Copeland, R.J.

1980-04-01T23:59:59.000Z

314

OCEAN DRILLING PROGRAM LEG 158 SCIENTIFIC PROSPECTUS  

E-Print Network (OSTI)

for the Ocean Drilling Program Deutsche Forschungsgemeinschaft (Federal Republic of Germany) Institut Français

315

OCEAN DRILLING PROGRAM LEG 160 PRELIMINARY REPORT  

E-Print Network (OSTI)

/Canada/Chinese Taipei/Korea Consortium for Ocean Drilling Deutsche Forschungsgemeinschaft (Federal Republic of Germany

316

OCEAN DRILLING PROGRAM LEG 160 SCIENTIFIC PROSPECTUS  

E-Print Network (OSTI)

/Canada/Chinese Taipei/Korea Consortium for Ocean Drilling Deutsche Forschungsgemeinschaft (Federal Republic of Germany

317

Thermodynamic Analysis of Ocean Circulation  

Science Conference Proceedings (OSTI)

Calculating a streamfunction as function of depth and density is proposed as a new way of analyzing the thermodynamic character of the overturning circulation in the global ocean. The sign of an overturning cell in this streamfunction directly ...

J. Nycander; J. Nilsson; K. Döös; G. Broström

2007-08-01T23:59:59.000Z

318

Humidity Profiles over the Ocean  

Science Conference Proceedings (OSTI)

The distribution of water vapor in the atmosphere affects climate change through radiative balance and surface evaporation. The variabilities of atmospheric humidity profile over oceans from daily to interannual time scales were examined using ...

W. Timothy Liu; Wenqing Tang; Pearn P. Niiler

1991-10-01T23:59:59.000Z

319

The Oceanic Eddy Heat Transport  

Science Conference Proceedings (OSTI)

The rectified eddy heat transport is calculated from a global high-resolution ocean general circulation model. The eddy heat transport is found to be strong in the western boundary currents, the Antarctic Circumpolar Current, and the equatorial ...

Steven R. Jayne; Jochem Marotzke

2002-12-01T23:59:59.000Z

320

Ocean Tidal Dissipation and its Role in Solar System Satellite Evolution  

E-Print Network (OSTI)

Magma ocean dissipation . . . . . . . . . . . . . . . .of the ocean . . . . . . . . . . . . . . . . . . . . . .Tidally-driven flow in global satellite oceans

Chen, Erinna

2013-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "determination ocean thermal" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


321

MPAS-Ocean Development Update  

SciTech Connect

The Model for Prediction Across Scales (MPAS) is a modeling framework developed jointly between NCAR and LANL, built to allow core developers to: rapidly develop new dynamical cores, and leverage improvements made to shared codes. MPAS-Ocean (MPAS-O) is a functioning ocean model capable of high resolution, or highly vairable resolution simulations. The first MPAS-O publication is expected by the end of the year.

Jacobsen, Douglas W. [Los Alamos National Laboratory; Ringler, Todd D. [Los Alamos National Laboratory; Petersen, Mark R. [Los Alamos National Laboratory; Jones, Philip W. [Los Alamos National Laboratory; Maltrud, Mathew E. [Los Alamos National Laboratory

2012-06-13T23:59:59.000Z

322

OCEAN THERMAL ENERGY CONVERSION (OTEC) PROGRAMMATIC ENVIRONMENTAL ANALYSIS  

E-Print Network (OSTI)

industrial users. Costs and per kWh increased from to 2.7rf-30, 1978, the average cost per kWh was 6.09i for residential

Sands, M. D.

2011-01-01T23:59:59.000Z

323

OCEAN THERMAL ENERGY CONVERSION (OTEC) PROGRAMMATIC ENVIRONMENTAL ANALYSIS  

E-Print Network (OSTI)

District (Hawaii) Electrical Power Grid--Hawaii . . . . . .Electrical Power Grid--Puerto Rico . . . . Ammonia andocean water to produce electrical power by means of gas or

Sands, M. D.

2011-01-01T23:59:59.000Z

324

Ocean thermal energy. Quarterly report, April-June 1982  

DOE Green Energy (OSTI)

This quarterly report includes summaries of the following tasks: (1) OTEC pilot plant conceptual design review; (2) OTEC methanol; (3) management decision requirements for OTEC construction; (4) hybrid geothermal - OTEC (GEOTEC) power plant performance estimates; and (5) supervision of testing of pneumatic wave energy conversion system.

Not Available

1982-06-30T23:59:59.000Z

325

Ocean thermal energy. Quarterly report, January-March 1982  

DOE Green Energy (OSTI)

This quarterly report summarizes work of the following tasks as of March 31, 1982: OTEC pilot plant conceptual design review; OTEC methanol; review of electrolyzer development programs and requirements; financial and legal considerations in OTEC implementation; potential Navy sites for GEOTEC systems; hybrid geothermal-OTEC power plants: single-cycle performance estimates; and supervision of testing of pneumatic wave energy conversion system.

Not Available

1982-03-30T23:59:59.000Z

326

OCEAN THERMAL ENERGY CONVERSION (OTEC) PROGRAMMATIC ENVIRONMENTAL ANALYSIS  

E-Print Network (OSTI)

cable contractors, tropical cyclones and geology. Dept. ofpressure center. Tropical cyclones are usually accompaniedor plankton. case of 'TROPICAL CYCLONE TUNICATES TURBIDITY

Sands, M. D.

2011-01-01T23:59:59.000Z

327

OCEAN THERMAL ENERGY CONVERSION: AN OVERALL ENVIRONMENTAL ASSESSMENT  

E-Print Network (OSTI)

distur- bances due to carbon dioxide releases and sea-how- ever, the carbon dioxide releases from large- scalewith other man-induced carbon dioxide releases to result in

Sands, M.Dale

2013-01-01T23:59:59.000Z

328

OCEAN THERMAL ENERGY CONVERSION (OTEC) PROGRAMMATIC ENVIRONMENTAL ANALYSIS  

E-Print Network (OSTI)

Degradation Processes for Chlorine in Saline Waters .92-101. Fate and effects of chlorine Bogdanov, D.V. , V.A.control alternatives to chlorine for power plant cooling

Sands, M. D.

2011-01-01T23:59:59.000Z

329

OCEAN THERMAL ENERGY CONVERSION (OTEC) PROGRAMMATIC ENVIRONMENTAL ANALYSIS  

E-Print Network (OSTI)

and commercialization and a DOE requirement for the SAR. TheDOE Operations (SAR), established the uniform requirement todocument requirements and updating schedule of the SAR (DOE,

Sands, M. D.

2011-01-01T23:59:59.000Z

330

OCEAN THERMAL ENERGY CONVERSION (OTEC) PROGRAMMATIC ENVIRONMENTAL ANALYSIS  

E-Print Network (OSTI)

proposed or existing oil or gas exploration areas, site-useOTEC Liability - Gas and oil exploration and exploitation onor natural gas; however, some oil exploration is beginning,

Sands, M. D.

2011-01-01T23:59:59.000Z

331

Response of oceanic hydrate-bearing sediments to thermal stresses  

E-Print Network (OSTI)

shales to evaluate whether the predicted salinity distribution will be a cause for concern during similar production

Moridis, G.J.; Kowalsky, M.B.

2006-01-01T23:59:59.000Z

332

Ocean Thermal Energy Conversion - Energy Explained, Your Guide To ...  

U.S. Energy Information Administration (EIA)

Landfill Gas and Biogas; Biomass & the Environment See also: Biofuels. Biofuels: Ethanol & Biodiesel. Ethanol; Use of Ethanol; Ethanol & the Environment; Biodiesel;

333

Response of oceanic hydrate-bearing sediments to thermal stresses  

E-Print Network (OSTI)

fluid consistency with evi- dence of bubbling gas) in the dissociating outer annulus (source: Deep Sea Drilling

Moridis, G.J.; Kowalsky, M.B.

2006-01-01T23:59:59.000Z

334

Ocean thermal energy. Quarterly report, October-December 1981  

DOE Green Energy (OSTI)

This quarterly report summarizes work on the following tasks: OTEC methanol; approaches for financing OTEC proof-of-concept experimental vessels; investigation of OTEC-ammonia as an alternative fuel; review of electrolyzer development programs and requirements; hybrid geothermal-OTEC power plants: single-cycle performance; estimates; and hybrid geothermal-OTEC power plants: dual-cycle performance estimates.

Not Available

1981-12-30T23:59:59.000Z

335

OCEAN THERMAL ENERGY CONVERSION (OTEC) PROGRAMMATIC ENVIRONMENTAL ANALYSIS  

E-Print Network (OSTI)

System Tube-in-She11 Heat Exchanger . . . • • . . . . . .possible Plate-Type Heat Exchanger Estimated Relationship~res isolation of the heat and exchanger module, purging of

Sands, M. D.

2011-01-01T23:59:59.000Z

336

Ocean thermal energy conversion (OTEC) power system development. Conceptual design  

DOE Green Energy (OSTI)

The conceptual design of a power system for application to the OTEC 100-MWe Demonstration Plant is presented. System modeling, design, and performance are described in detail. Materials considerations, module assembly, and cost considerations are discussed. Appendices include: A) systems analysis, B) general arrangements, C) system equipment, D) ammonia system material considerations; E) ammonia cycle, F) auxiliary subsystems, G) DACS availability analysis, H) heat exchanger supporting data, I) rotating machinery, and J) platform influences. (WHK)

Not Available

1978-01-30T23:59:59.000Z

337

OCEAN THERMAL ENERGY CONVERSION (OTEC) PROGRAMMATIC ENVIRONMENTAL ANALYSIS  

SciTech Connect

This programmatic environmental analysis is an initial assessment of OTEC technology considering development, demonstration and commercialization; it is concluded that the OTEC development program should continue because the development, demonstration, and commercialization on a single-plant deployment basis should not present significant environmental impacts. However, several areas within the OTEC program require further investigation in order to assess the potential for environmental impacts from OTEC operation, particularly in large-scale deployments and in defining alternatives to closed-cycle biofouling control: (1) Larger-scale deployments of OTEC clusters or parks require further investigations in order to assess optimal platform siting distances necessary to minimize adverse environmental impacts. (2) The deployment and operation of the preoperational platform (OTEC-1) and future demonstration platforms must be carefully monitored to refine environmental assessment predictions, and to provide design modifications which may mitigate or reduce environmental impacts for larger-scale operations. These platforms will provide a valuable opportunity to fully evaluate the intake and discharge configurations, biofouling control methods, and both short-term and long-term environmental effects associated with platform operations. (3) Successful development of OTEC technology to use the maximal resource capabilities and to minimize environmental effects will require a concerted environmental management program, encompassing many different disciplines and environmental specialties.

Sands, M. D.

1980-01-01T23:59:59.000Z

338

OCEAN THERMAL ENERGY CONVERSION (OTEC) PROGRAMMATIC ENVIRONMENTAL ANALYSIS  

E-Print Network (OSTI)

by means of gas or steam turbines. temperature The minimalby means of gas or steam turbines. The minimal operationalproblems. present steam turbine hardware by a factor of 11

Sands, M. D.

2011-01-01T23:59:59.000Z

339

Response of oceanic hydrate-bearing sediments to thermal stresses  

E-Print Network (OSTI)

and cumulative mass of water produced from the gravel pack (gas volume and water mass produced from the gravel pack (VCof gas produced from the annular gravel pack QP, mass water

Moridis, G.J.; Kowalsky, M.B.

2006-01-01T23:59:59.000Z

340

OCEAN THERMAL ENERGY CONVERSION (OTEC) PROGRAMMATIC ENVIRONMENTAL ANALYSIS  

E-Print Network (OSTI)

in size, and will produce baseload systems primarily land-and intended power use (baseload electricity or at-seathe ultimate use of providing baseload products, ammonia and

Sands, M. D.

2011-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "determination ocean thermal" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


341

OCEAN THERMAL ENERGY CONVERSION: AN OVERALL ENVIRONMENTAL ASSESSMENT  

E-Print Network (OSTI)

and intended power use (baseload electri- city or at-seaship), and power usages (baseload electricity, ammonia andship con- ~lguratlons. For baseload power production, the

Sands, M.Dale

2013-01-01T23:59:59.000Z

342

OCEAN THERMAL ENERGY CONVERSION (OTEC) PROGRAMMATIC ENVIRONMENTAL ANALYSIS  

E-Print Network (OSTI)

fauna associated with offshore platforms 1n the northeasternrisks and safety of offshore drilling platforms. ation andPlatform Effects Attraction - Fish congregate around offshore

Sands, M. D.

2011-01-01T23:59:59.000Z

343

OCEAN THERMAL ENERGY CONVERSION (OTEC) PROGRAMMATIC ENVIRONMENTAL ANALYSIS  

E-Print Network (OSTI)

Electrical Power Grid--Puerto Rico . . . . Ammonia andin the coastal waters of Puerto Rico. Unpublished. HarborAuthority, San Juan, Puerto Rico. Markel, A.L. VA. Personal

Sands, M. D.

2011-01-01T23:59:59.000Z

344

OCEAN THERMAL ENERGY CONVERSION (OTEC) PROGRAMMATIC ENVIRONMENTAL ANALYSIS  

E-Print Network (OSTI)

D. L. 1979. A review of water intake screening options forcapacity of cooling water intake structures for minimizingvessels. a. Warm and Cold Water Intakes Volumes - A single

Sands, M. D.

2011-01-01T23:59:59.000Z

345

OCEAN THERMAL ENERGY CONVERSION (OTEC) PROGRAMMATIC ENVIRONMENTAL ANALYSIS  

E-Print Network (OSTI)

power station on northeastern Long Island Sound, USA. Marinepower cycle will entrain and impinge members of the marinesuch as a power plant. A species of marine plankton

Sands, M. D.

2011-01-01T23:59:59.000Z

346

Oceanic Influences on the Seasonal Cycle in Evaporation over the Indian Ocean  

Science Conference Proceedings (OSTI)

The annual mean and seasonal cycle in latent heating over the Indian Ocean are investigated using a simple, analytical ocean model and a 3D, numerical, ocean model coupled to a prescribed atmosphere, which permits interaction through sea surface ...

Roxana C. Wajsowicz; Paul S. Schopf

2001-03-01T23:59:59.000Z

347

In a Perfect Ocean: The State of the Fisheries and Ecosystems in the North Atlantic Ocean  

E-Print Network (OSTI)

Review: In a Perfect Ocean: The State of the Fisheriesin the North Atlantic Ocean By Daniel Pauly and Jay MacleanJay Maclean. In a Perfect Ocean: The State of the Fisheries

Miller, Ryder W.

2004-01-01T23:59:59.000Z

348

The dynamic response of oceanic hydrate deposits to ocean temperature change  

E-Print Network (OSTI)

during transit through the ocean water column Geophys. Res.hydrate in the world's oceans. Global Biogeochem. Cycles, 8,of methane hydrate in ocean sediment. Energy and Fuels, 19,

Reagan, Matthew T.

2008-01-01T23:59:59.000Z

349

Ocean Barrier Layers’ Effect on Tropical Cyclone Intensification  

SciTech Connect

Improving a tropical cyclone's forecast and mitigating its destructive potential requires knowledge of various environmental factors that influence the cyclone's path and intensity. Herein, using a combination of observations and model simulations, we systematically demonstrate that tropical cyclone intensification is significantly affected by salinity-induced barrier layers, which are 'quasi-permanent' features in the upper tropical oceans. When tropical cyclones pass over regions with barrier layers, the increased stratification and stability within the layer reduce storm-induced vertical mixing and sea surface temperature cooling. This causes an increase in enthalpy flux from the ocean to the atmosphere and, consequently, an intensification of tropical cyclones. On average, the tropical cyclone intensification rate is nearly 50% higher over regions with barrier layers, compared to regions without. Our finding, which underscores the importance of observing not only the upper-ocean thermal structure but also the salinity structure in deep tropical barrier layer regions, may be a key to more skillful predictions of tropical cyclone intensities through improved ocean state estimates and simulations of barrier layer processes. As the hydrological cycle responds to global warming, any associated changes in the barrier layer distribution must be considered in projecting future tropical cyclone activity.

Balaguru, Karthik; Chang, P.; Saravanan, R.; Leung, Lai-Yung R.; Xu, Zhao; Li, M.; Hsieh, J.

2012-09-04T23:59:59.000Z

350

Deployment, release and recovery of ocean riser pipes  

DOE Patents (OSTI)

An ocean thermal energy conversion facility includes a long pipe assembly which is supported at its upper end by the hull of the floating facility. Cold water flows to the facility from deep in the ocean. The pipe assembly comprises an elongate pipe construction and a weight connected to the lower end of the construction by a line of selected length. A floatation collar is connected to the construction at its upper end to cause the construction to have positive buoyancy and a center of buoyancy closer to the upper end of the construction than its center of mass. The weight renders the entire pipe assembly negatively buoyant. In the event that support of the pipe assembly should be lost, as by release of the assembly from the facility hull in an emergency, the assembly sinks to the ocean floor where it is moored by the weight. The pipe construction floats submerged above the ocean floor in a substantially vertical attitude which facilitates recovery of the assembly.

Person, Abraham (Los Alamitos, CA); Wetmore, Sherman B. (Westminster, CA); McNary, James F. (Santa Ana, CA)

1980-11-18T23:59:59.000Z

351

Categorical Exclusion (CX) Determinations By Date | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

3, 2011 3, 2011 CX-005016: Categorical Exclusion Determination A Public/Private Partnership for Improving Short Term Wind Energy Forecasts and Quantifying the Benefits to Utility CX(s) Applied: A9, B3.1 Date: 01/13/2011 Location(s): Saint Paul, Minnesota Office(s): Energy Efficiency and Renewable Energy, Golden Field Office January 13, 2011 CX-005011: Categorical Exclusion Determination Modeling the Physical and Biochemical Influence of Ocean Thermal Energy Conversion Plant Discharges into their Adjacent Waters CX(s) Applied: A9, A11 Date: 01/13/2011 Location(s): West Oahu, Hawaii Office(s): Energy Efficiency and Renewable Energy, Golden Field Office January 13, 2011 CX-005007: Categorical Exclusion Determination State of Florida Energy Efficiency and Conservation Block Grant - Sunset

352

Categorical Exclusion Determinations: A11 | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

January 14, 2011 January 14, 2011 CX-005027: Categorical Exclusion Determination California-Tribe-Santa Rosa Rancheria of Tachi-Yokut Indians CX(s) Applied: A9, A11, B5.1 Date: 01/14/2011 Location(s): California Office(s): Energy Efficiency and Renewable Energy January 13, 2011 CX-005011: Categorical Exclusion Determination Modeling the Physical and Biochemical Influence of Ocean Thermal Energy Conversion Plant Discharges into their Adjacent Waters CX(s) Applied: A9, A11 Date: 01/13/2011 Location(s): West Oahu, Hawaii Office(s): Energy Efficiency and Renewable Energy, Golden Field Office January 13, 2011 CX-004974: Categorical Exclusion Determination Kansas-City-Shawnee CX(s) Applied: A9, A11, B1.32, B2.5, B5.1 Date: 01/13/2011 Location(s): Shawnee, Kansas Office(s): Energy Efficiency and Renewable Energy

353

Categorical Exclusion Determinations: A9 | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

14, 2011 14, 2011 CX-005027: Categorical Exclusion Determination California-Tribe-Santa Rosa Rancheria of Tachi-Yokut Indians CX(s) Applied: A9, A11, B5.1 Date: 01/14/2011 Location(s): California Office(s): Energy Efficiency and Renewable Energy January 13, 2011 CX-005016: Categorical Exclusion Determination A Public/Private Partnership for Improving Short Term Wind Energy Forecasts and Quantifying the Benefits to Utility CX(s) Applied: A9, B3.1 Date: 01/13/2011 Location(s): Saint Paul, Minnesota Office(s): Energy Efficiency and Renewable Energy, Golden Field Office January 13, 2011 CX-005011: Categorical Exclusion Determination Modeling the Physical and Biochemical Influence of Ocean Thermal Energy Conversion Plant Discharges into their Adjacent Waters CX(s) Applied: A9, A11

354

Categorical Exclusion Determinations: Office of Energy Efficiency and  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

3, 2011 3, 2011 CX-005011: Categorical Exclusion Determination Modeling the Physical and Biochemical Influence of Ocean Thermal Energy Conversion Plant Discharges into their Adjacent Waters CX(s) Applied: A9, A11 Date: 01/13/2011 Location(s): West Oahu, Hawaii Office(s): Energy Efficiency and Renewable Energy, Golden Field Office January 13, 2011 CX-005007: Categorical Exclusion Determination State of Florida Energy Efficiency and Conservation Block Grant - Sunset Avenue Street Lighting Safety and Efficiency Project CX(s) Applied: B5.1 Date: 01/13/2011 Location(s): Mascotte, Florida Office(s): Energy Efficiency and Renewable Energy, Golden Field Office January 13, 2011 CX-004990: Categorical Exclusion Determination City of Cerritos, Photovoltaic System at the Cerritos Corporate Yard

355

Categorical Exclusion Determinations: A11 | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

November 24, 2010 November 24, 2010 CX-004536: Categorical Exclusion Determination Subtask 2.4 Ocean Thermal Energy Conversion Facility - University of Hawaii CX(s) Applied: A9, A11 Date: 11/24/2010 Location(s): Hawaii Office(s): Energy Efficiency and Renewable Energy, Golden Field Office November 24, 2010 CX-004534: Categorical Exclusion Determination Southeastern Oklahoma State University - Phase 2 Chiller and Green Power Outreach Activities CX(s) Applied: A9, A11, B1.4, B2.1, B2.2, B5.1 Date: 11/24/2010 Location(s): Oklahoma Office(s): Energy Efficiency and Renewable Energy, Golden Field Office November 23, 2010 CX-004592: Categorical Exclusion Determination Re-Utilization of Industrial Carbon Dioxide for Algae Production Using a Phase Change Material CX(s) Applied: A9, A11, B3.6

356

Ocean Thermal Energy Conversion (OTEC) Program. Volume 2. Preoperational ocean test platform  

DOE Green Energy (OSTI)

The supporting data used to prepare an environmental assessment for the OTEC-1 test facility are presented. The candidate sites (Keahole Point, Hawaii; Punta Tuna, Puerto Rico; offshore New Orleans; and offshore Tampa) are characterized and an annotated bibliography is included for each site. Estimates of the water discharge plume and water suction plume geometry are given. A summary of the calculations used to evoluate the water intake and discharge impact field is presented. An annotated list of applicable health and safety regulations are presented, and a general annotated bibliography of OTEC literature is included. (WHK)

Not Available

1979-03-01T23:59:59.000Z

357

NOS Point Forecast Guidance to Weather and Ocean Conditions ...  

NLE Websites -- All DOE Office Websites (Extended Search)

NOS Point Forecast Guidance to Weather and Ocean Conditions Ocean Data Tools Technical Guide Map Gallery Regional Planning Feedback Ocean You are here Data.gov Communities ...

358

Mechanisms of the meridional heat transport in the Southern Ocean  

E-Print Network (OSTI)

atlas of the Southern Ocean, Natural Environment ResearchMHT. Keywords Southern Ocean . Meridional heat transport .1 Introduction The Southern Ocean (SO) circulation plays an

Volkov, Denis L.; Fu, Lee-Lueng; Lee, Tong

2010-01-01T23:59:59.000Z

359

Observation of Physical Fluxes Between an Estuary and the Ocean  

E-Print Network (OSTI)

between the coastal ocean and a semi-enclosed estuarinebetween the coastal ocean and a semi-enclosed estuarinebetween the coastal ocean and a semi-enclosed estuarine

Stacey, Mark; Powell, Thomas

2005-01-01T23:59:59.000Z

360

Depth profiling ambient noise in the deep ocean  

E-Print Network (OSTI)

Acoustic Ambient Noise in the Ocean: Spectra and Sources,"and Osterhus, S. (1999). "Ocean Ambient Sound Instrumenta Subsurface Package," J. Atmos. Ocean. Tech. 16, 1118-1126.

Barclay, David Readshaw

2011-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "determination ocean thermal" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


361

Ocean Acidification Impacts on Shellfish Workshop: Findings and Recommendations  

E-Print Network (OSTI)

The workshop to investigate ocean acidification impacts on Growers Association.   Ocean Acidification Impacts on Proceedings  Integrated Ocean Observing Systems  California 

Dickson, Andrew

2010-01-01T23:59:59.000Z

362

Ocean dynamics and thermodynamics in the tropical Indo- Pacific region  

E-Print Network (OSTI)

Ocean dynamics and thermodynamics in the tropical Indo-Ocean dynamics and thermodynamics in the tropical Indo-affect the dynam- ics and thermodynamics of the upper ocean.

Drushka, Kyla

2011-01-01T23:59:59.000Z

363

Science Potential of a Deep Ocean Antineutrino Observatory  

E-Print Network (OSTI)

This paper presents science potential of a deep ocean antineutrino observatory under development at Hawaii. The observatory design allows for relocation from one site to another. Positioning the observatory some 60 km distant from a nuclear reactor complex enables precision measurement of neutrino mixing parameters, leading to a determination of neutrino mass hierarchy. At a mid-Pacific location the observatory measures the flux and ratio of uranium and thorium decay neutrinos from earth's mantle and performs a sensitive search for a hypothetical natural fission reactor in earth's core. A subsequent deployment at another mid-ocean location would test lateral heterogeneity of uranium and thorium in earth's mantle.

Steve Dye

2006-11-22T23:59:59.000Z

364

CX-007707: Categorical Exclusion Determination | Department of...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

CX-007707: Categorical Exclusion Determination Massachusetts Institute of Technology - Thermal Fuel: HybriSol Hybrid Nanostructure for High-Energy Density Solar Thermal Fuels CX(s)...

365

ARM - Field Campaign - Observations and Modeling of the Green Ocean Amazon:  

NLE Websites -- All DOE Office Websites (Extended Search)

Thermal Desorption Ionization Mass Spectrometer (TDCIMS) Thermal Desorption Ionization Mass Spectrometer (TDCIMS) Related Campaigns Observations and Modeling of the Green Ocean Amazon (GOAMAZON 2014) 2014.01.01, Martin, AMF Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Campaign : Observations and Modeling of the Green Ocean Amazon: Thermal Desorption Ionization Mass Spectrometer (TDCIMS) 2014.01.01 - 2014.10.31 Lead Scientist : Jim Smith Description As part of both GoAmazon2014 IOPs, the Thermal Desorption Chemical Ionization Mass Spectrometer (TDCIMS) will perform measurements of the molecular composition of 10-50 nm diameter particles. TDCIMS observations will be used to address two objectives the GoAmazon. For studying the interactions between anthropogenic and biogenic emissions, the TDCIMS will

366

Ocean - Tools | Data.gov  

NLE Websites -- All DOE Office Websites (Extended Search)

Tools Tools Ocean Data Tools Technical Guide Map Gallery Regional Planning Feedback Ocean You are here Data.gov » Communities » Ocean Decision-Support Tools (DSTs): Science and information are fundamental to effective marine planning. Marine planning involves inclusive discussion and analyses of the status and potential uses of 3-dimensional areas of coastal, marine and Great Lakes ecosystems (including the water column) and their potential changes over time. Relevant spatial data and derived interpretive and analytical products (i.e. decision-support tools) help inform all phases of the marine planning process. To date, several decision-support tools have been develop to support marine planning efforts. Marine planners should carefully evaluate which tools best apply to their region or specific issue or project. Below is a list of

367

Approximation of Ocean Heat Storage by Ocean–Atmosphere Energy Exchange: Implications for Seasonal Cycle Mixed Layer Ocean Formulations  

Science Conference Proceedings (OSTI)

The approximation of ocean heat storage by the net surface energy flux and the implications for zonal mean SST simulation using mixed layer ocean formulation are examined. The analysis considers both constant and variable depth mixed layers. ...

Robert G. Gallimore; David D. Houghton

1987-08-01T23:59:59.000Z

368

Warm Bias and Parameterization of Boundary Upwelling in Ocean Models  

SciTech Connect

It has been demonstrated that Eastern Boundary Currents (EBC) are a baroclinic intensification of the interior circulation of the ocean due to the emergence of mesoscale eddies in response to the sharp buoyancy gradients driven by the wind-stress and the thermal surface forcing. The eddies accomplish the heat and salt transport necessary to insure that the subsurface flow is adiabatic, compensating for the heat and salt transport effected by the mean currents. The EBC thus generated occurs on a cross-shore scale of order 20-100 km, and thus this scale needs to be resolved in climate models in order to capture the meridional transport by the EBC. Our result indicate that changes in the near shore currents on the oceanic eastern boundaries are linked not just to local forcing, such as coastal changes in the winds, but depend on the basin-wide circulation as well.

Cessi, Paola; Wolfe, Christopher

2012-11-06T23:59:59.000Z

369

Ocean energy systems. Quarterly report, October-December 1982  

DOE Green Energy (OSTI)

Research progress is reported on developing Ocean Thermal Energy Conversion (OTEC) systems that will provide synthetic fuels (e.g., methanol), energy-intensive products such as ammonia (for fertilizers and chemicals), and aluminum. The work also includes assessment and design concepts for hybrid plants, such as geothermal-OTEC (GEOTEC) plants. Another effort that began in the spring of 1982 is a technical advisory role to DOE with respect to their management of the conceptual design activity of the two industry teams that are designing offshore OTEC pilot plants that could deliver power to Oahu, Hawaii. In addition, a program is underway in which tests of a different kind of ocean-energy device, a turbine that is air-driven as a result of wave action in a chamber, are being planned. This Quarterly Report summarizes the work on the various tasks as of 31 December 1982.

Not Available

1982-12-01T23:59:59.000Z

370

Ocean energy systems. Quarterly report, January-March 1983  

DOE Green Energy (OSTI)

Progress is reported on the development of Ocean Thermal Energy Conversion (OTEC) systems that will provide synthetic fuels (e.g., methanol), energy-intensive products such as ammonia (for fertilizers and chemicals), and aluminum. The work also includes assessment and design concepts for hybrid plants, such as geothermal-OTEC (GEOTEC) plants. Another effort that began in the spring of 1982 is a technical advisory role to DOE with respect to their management of the conceptual and preliminary design activity of industry teams that are designing a shelf-mounted offshore OTEC pilot plant that could deliver power to Oahu, Hawaii. In addition, a program is underway to evaluate and test the Pneumatic Wave-Energy Conversion System (PWECS), an ocean-energy device consisting of a turbine that is air-driven as a result of wave action in a chamber. This Quarterly Report summarizes the work on the various tasks as of 31 March 1983.

Not Available

1983-03-30T23:59:59.000Z

371

Surface Eddy Momentum Flux and Velocity Variances in the Southern Ocean from Geosat Altimetry  

Science Conference Proceedings (OSTI)

Satellite altimetry has previously been used to map the magnitude of the surface eddy variability of the global oceans, but the direction of the time-variable velocities have been more difficult to determine. Here, a technique is presented for ...

Rosemary Morrow; Richard Coleman; John Church; Dudley Chelton

1994-10-01T23:59:59.000Z

372

On the Stochastic Forcing of Modes of Interannual Southern Ocean Sea Surface Temperature Variability  

Science Conference Proceedings (OSTI)

A simple linearized transport model of anomalous Southern Ocean sea surface temperature (SST) is studied to determine whether it can sustain anomalies of realistic amplitudes under a physically based stochastic forcing. As noted in previous ...

Christopher M. Aiken; Matthew H. England

2005-08-01T23:59:59.000Z

373

Mean and Near-Inertial Ocean Current Response to Hurricane Gilbert  

Science Conference Proceedings (OSTI)

The three-dimensional hurricane-induced ocean response is determined from velocity and temperature profiles acquired in the western Gulf of Mexico between 14 and 19 September 1988 during the passage of Hurricane Gilbert. The asymmetric wind ...

Lynn K. Shay; Arthur J. Mariano; S. Daniel Jacob; Edward H. Ryan

1998-05-01T23:59:59.000Z

374

Understanding El Niño in Ocean–Atmosphere General Circulation Models: Progress and Challenges  

Science Conference Proceedings (OSTI)

Determining how El Niño and its impacts may change over the next 10 to 100 years remains a difficult scientific challenge. Ocean–atmosphere coupled general circulation models (CGCMs) are routinely used both to analyze El Niño mechanisms and ...

Eric Guilyardi; Andrew Wittenberg; Alexey Fedorov; Mat Collins; Chunzai Wang; Antonietta Capotondi; Geert Jan van Oldenborgh; Tim Stockdale

2009-03-01T23:59:59.000Z

375

Sources of the Equatorial Undercurrent in the Atlantic in a High-Resolution Ocean Model  

Science Conference Proceedings (OSTI)

The ventilation of the Equatorial Undercurrent (EUC) in the Atlantic is investigated using data from a high-resolution ocean model. Overturning streamfunctions, subduction patterns, and pathways are determined from Eulerian and Lagrangian mean ...

Wilco Hazeleger; Pedro de Vries; Yann Friocourt

2003-04-01T23:59:59.000Z

376

Potential Vorticity Sources and Sinks in a Quasi-geostrophic Ocean: beyond Western Boundary Currents  

Science Conference Proceedings (OSTI)

Potential vorticity dynamics for a quasi-geostrophic eddy-resolving general circulation model (EGCM) are studied in order to determine the effects of mesoscale variability on the potential vorticity distribution of a wind-driven ocean. The study ...

M. Susan Lozier; Stephen C. Riser

1990-10-01T23:59:59.000Z

377

Wind-forced Variations in Sea Surface Height in the Northeast Pacific Ocean  

Science Conference Proceedings (OSTI)

Sea surface height (SSH) anomalies from the Geosat altimeter for the northeast Pacific Ocean were analysed to determine their annual and interannual fluctuations over a 2.5-year period. The interannual anomalies suggested large-scale changes in ...

Kathryn A. Kelly; Michael J. Caruso; Jay A. Austin

1993-11-01T23:59:59.000Z

378

Improved Oceanic Cool-Skin Corrections Using a Refined Solar Penetration Model  

Science Conference Proceedings (OSTI)

The oceanic near-surface temperature profile must be accurately characterized to enable precise determination of air–sea heat exchange and satellite retrievals of sea surface temperature. An improved solar transmission parameterization is ...

Gary A. Wick; J. Carter Ohlmann; Christopher W. Fairall; Andrew T. Jessup

2005-11-01T23:59:59.000Z

379

The Role of Ocean-Atmosphere Interactions in the CO2 Climate Problem  

Science Conference Proceedings (OSTI)

The climate sensitivity question is examined from the viewpoint of surface energy balance considerations. This approach clarifies the role of ocean-atmosphere interactions in determining the surface warming to an increase in CO2. The study uses a ...

V. Ramanathan

1981-05-01T23:59:59.000Z

380

Ocean Mixed Layer Radiant Heating and Solar Penetration: A Global Analysis  

Science Conference Proceedings (OSTI)

A hybrid parameterization for the determination of in-water solar fluxes is developed and applied to compute the flux of solar radiation that penetrates beyond the upper-ocean mixed layer into permanent pycnocline waters on global space and ...

J. Carter Ohlmann; David A. Siegel; Catherine Gautier

1996-10-01T23:59:59.000Z

Note: This page contains sample records for the topic "determination ocean thermal" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


381

Contribution of oceanic gas hydrate dissociation to the formation of Arctic Ocean methane plumes  

SciTech Connect

Vast quantities of methane are trapped in oceanic hydrate deposits, and there is concern that a rise in the ocean temperature will induce dissociation of these hydrate accumulations, potentially releasing large amounts of carbon into the atmosphere. Because methane is a powerful greenhouse gas, such a release could have dramatic climatic consequences. The recent discovery of active methane gas venting along the landward limit of the gas hydrate stability zone (GHSZ) on the shallow continental slope (150 m - 400 m) west of Svalbard suggests that this process may already have begun, but the source of the methane has not yet been determined. This study performs 2-D simulations of hydrate dissociation in conditions representative of the Arctic Ocean margin to assess whether such hydrates could contribute to the observed gas release. The results show that shallow, low-saturation hydrate deposits, if subjected to recently observed or future predicted temperature changes at the seafloor, can release quantities of methane at the magnitudes similar to what has been observed, and that the releases will be localized near the landward limit of the GHSZ. Both gradual and rapid warming is simulated, along with a parametric sensitivity analysis, and localized gas release is observed for most of the cases. These results resemble the recently published observations and strongly suggest that hydrate dissociation and methane release as a result of climate change may be a real phenomenon, that it could occur on decadal timescales, and that it already may be occurring.

Reagan, M.; Moridis, G.; Elliott, S.; Maltrud, M.

2011-06-01T23:59:59.000Z

382

Ocean Color Web | Data.gov  

NLE Websites -- All DOE Office Websites (Extended Search)

Ocean Color Web Ocean Color Web Ocean Data Tools Technical Guide Map Gallery Regional Planning Feedback Ocean You are here Data.gov » Communities » Ocean » Data Ocean Color Web Dataset Summary Description A comprehensive image analysis package for the processing, display, analysis, and quality control of ocean color data. Tags {Ocean,"water color",spectrometer,"sea viewing",MODIS,"marine biology",NASA,GSFC,"Goddard Space Flight Center"} Dataset Ratings Overall 0 No votes yet Data Utility 0 No votes yet Usefulness 0 No votes yet Ease of Access 0 No votes yet Dataset Additional Information Last Updated 15-Jan-2010 Publisher National Aeronautics and Space Administration Contact Name Contact Email Gene.C.Feldman@nasa.gov Unique Identifier NASA-1547

383

Dynamics of global ocean heat transport variability  

E-Print Network (OSTI)

A state-of-the-art, high-resolution ocean general circulation model is used to estimate the time-dependent global ocean heat transport and investigate its dynamics. The north-south heat transport is the prime manifestation ...

Jayne, Steven Robert

1999-01-01T23:59:59.000Z

384

Open Ocean Energy Ltd | Open Energy Information  

Open Energy Info (EERE)

Energy Ltd Jump to: navigation, search Name Open Ocean Energy Ltd Sector Marine and Hydrokinetic Website http:http:www.open-ocean-e LinkedIn Connections CrunchBase Profile No...

385

Buoyancy Arrest and Shelf–Ocean Exchange  

Science Conference Proceedings (OSTI)

When steady flow in a stratified ocean passes between the continental slope and open ocean, its ability to cross isobaths is potentially limited by buoyancy arrest. If the bottom Ekman transport vanishes and there are no interior stresses, then ...

K. H. Brink

2012-04-01T23:59:59.000Z

386

Dynamic and Thermodynamic Regulation of Ocean Warming  

Science Conference Proceedings (OSTI)

The relative roles of clouds, surface evaporation, and ocean heat transport in limiting maximum sea surface temperatures (SSTs) in the western Pacific warm pool are investigated by means of simple and intermediate coupled ocean–atmosphere models. ...

Tim Li; Timothy F. Hogan; C-P. Chang

2000-10-01T23:59:59.000Z

387

An Ocean Observing System for Climate  

Science Conference Proceedings (OSTI)

Designs and implementation are proceeding for a Global Ocean Observing System (GOOS) and a Global Climate Observing System (GCOS). The initial design for the ocean component of the GCOS, which is also the climate module of the GOOS, was completed ...

Worth D. Nowlin Jr.; Neville Smith; George Needler; Peter K. Taylor; Robert Weller; Ray Schmitt; Liliane Merlivat; Alain Vézina; Arthur Alexiou; Michael McPhaden; Massaaki Wakatsuchi

1996-10-01T23:59:59.000Z

388

Assimilation of Altimeter Data into Ocean Models  

Science Conference Proceedings (OSTI)

The problem of assimilating satellite altimeter data into an ocean model is considered for the case in which the ocean currents are weak, so that they can be represented by a superposition of linear Rossby waves, and the altimeter measurements ...

D. J. Webb; A. Moore

1986-11-01T23:59:59.000Z

389

A Comprehensive Ocean-Atmosphere Data Set  

Science Conference Proceedings (OSTI)

Development is described of a Comprehensive Ocean-Atmosphere Data Set (COADS)—the result of a cooperative project to collect global weather observations taken near the ocean's surface since 1854, primarily from merchant ships, into a compact and ...

Scott D. Woodruff; Ralph J. Slutz; Roy L. Jenne; Peter M. Steurer

1987-10-01T23:59:59.000Z

390

Continental insulation, mantle cooling, and the surface area of oceans and continents  

E-Print Network (OSTI)

Continental insulation, mantle cooling, and the surface area of oceans and continents A. Lenardica, Rice University, Houston, TX 77251-1892, United States b School of Mathematical Sciences, Building 28 May 2005 Abstract It is generally assumed that continents, acting as thermal insulation above

Manga, Michael

391

Transit-Time Distributions in a Global Ocean Model  

Science Conference Proceedings (OSTI)

Results from a simulation of the ocean “transit-time distribution” (“TTD”) for global and regional ocean surface boundary conditions are presented based on a 5000-yr integration using the Parallel Ocean Program ocean general circulation model. ...

Synte Peacock; Mathew Maltrud

2006-03-01T23:59:59.000Z

392

OCEAN DRILLING PROGRAM LEG 106 PRELIMINARY REPORT  

E-Print Network (OSTI)

by the following agencies: Australia/Canada/Chinese Taipei/Korea Consortium for the Ocean Drilling Program Deutsche

393

OCEAN DRILLING PROGRAM LEG 201 SCIENTIFIC PROSPECTUS  

E-Print Network (OSTI)

by the following agencies: Australia/Canada/Chinese Taipei/Korea Consortium for the Ocean Drilling Program Deutsche

394

The 1981 ocean tomography experiment: Preliminary results  

Science Conference Proceedings (OSTI)

Preliminary results from a 1981 test ocean acoustic tomography experiment are presented. The system deployed in the southern North Atlantic

The Ocean Tomography Group; R. C. Spindel

1982-01-01T23:59:59.000Z

395

Constraining Oceanic dust deposition using surface 1 ocean dissolved Al 2  

E-Print Network (OSTI)

Constraining Oceanic dust deposition using surface 1 ocean dissolved Al 2 Qin Han, J. Keith Moore, Charles Zender, Chris Measures, David Hydes 3 Abstract 4 We use measurements of ocean surface dissolved Al and Deposition 6 (DEAD) model, to constrain dust deposition to the oceans. Our Al database contains 7 all

Zender, Charles

396

The CCSM4 Ocean Component  

Science Conference Proceedings (OSTI)

The ocean component of the Community Climate System Model version 4 (CCSM4) is described, and its solutions from the twentieth-century (20C) simulations are documented in comparison with observations and those of CCSM3. The improvements to the ...

Gokhan Danabasoglu; Susan C. Bates; Bruce P. Briegleb; Steven R. Jayne; Markus Jochum; William G. Large; Synte Peacock; Steve G. Yeager

2012-03-01T23:59:59.000Z

397

Transport of Freshwater by the Oceans  

Science Conference Proceedings (OSTI)

The global distribution of freshwater transport in the ocean is presented, based on an integration point at Bering Strait, which connects the Pacific and Atlantic oceans via the Artic Ocean. Through Bering Strait, 0.8 × 106 m3 s?1 of relatively ...

Susan E. Wijffels; Raymond W. Schmitt; Harry L. Bryden; Anders Stigebrandt

1992-02-01T23:59:59.000Z

398

Ocean Circulation Kinetic Energy: Reservoirs, Sources,  

E-Print Network (OSTI)

. The coupling of the generation of different energy forms in the dynamics (in either balanced or wave motions are almost nonexistent in the ocean. www.annualreviews.org · Ocean Circulation Kinetic Energy 255 Annu.Rev.Fluid processes? Are the seemingly different dynamical ranges coupled? 2. THE OCEANIC ENERGY BUDGET We begin

Ferrari, Raffaele

399

A Method to Estimate Three-Dimensional Thermal Structure from Satellite Altimetry Data  

Science Conference Proceedings (OSTI)

A new empirical method to estimate mesoscale three-dimensional oceanic thermal structures from near-real-time satellite altimetry data is presented. The method uses a two-layer model with a novel set of empirical parameters for stratification. ...

Akiko Takano; Hidekatsu Yamazaki; Takeyoshi Nagai; Osamu Honda

2009-12-01T23:59:59.000Z

400

Removing Unwanted Fluctuations in the AVHRR Thermal Calibration Data Using Robust Techniques  

Science Conference Proceedings (OSTI)

The study deals with analysis of thermal calibration of the Advanced Very High Resolution Radiometer (AVHRR) aboard National Oceanic and Atmospheric Administration (NOAA) spacecrafts. In particular, the effects caused by various types of ...

A. P. Trishchenko

2002-12-01T23:59:59.000Z

Note: This page contains sample records for the topic "determination ocean thermal" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


401

Ocean Skeletal Structures Hypotheses and Interpretation  

E-Print Network (OSTI)

In this paper we discuss hypotheses on formation of ocean skeletal structures. These structures entered the ocean together with atmospheric precipitation and were assembled from fragments of skeletal structures present in clouds. We base interpretation of this phenomenon on surface tension forces between fundamental tubular blocks of the investigated structures that may also occur beneath the ocean surface. A capillary model is presented to explain formation of a network of interacting tubes. Data about the nature of ocean skeletal structures can be instrumental in modeling many processes associated with physics of the ocean.

Rantsev-Kartinov, V A

2010-01-01T23:59:59.000Z

402

Ocean Skeletal Structures Hypotheses and Interpretation  

E-Print Network (OSTI)

In this paper we discuss hypotheses on formation of ocean skeletal structures. These structures entered the ocean together with atmospheric precipitation and were assembled from fragments of skeletal structures present in clouds. We base interpretation of this phenomenon on surface tension forces between fundamental tubular blocks of the investigated structures that may also occur beneath the ocean surface. A capillary model is presented to explain formation of a network of interacting tubes. Data about the nature of ocean skeletal structures can be instrumental in modeling many processes associated with physics of the ocean.

V. A. Rantsev-Kartinov; C. G. Parigger

2010-04-20T23:59:59.000Z

403

THERMAL PHASES OF EARTH-LIKE PLANETS: ESTIMATING THERMAL INERTIA FROM ECCENTRICITY, OBLIQUITY, AND DIURNAL FORCING  

SciTech Connect

In order to understand the climate on terrestrial planets orbiting nearby Sun-like stars, one would like to know their thermal inertia. We use a global climate model to simulate the thermal phase variations of Earth analogs and test whether these data could distinguish between planets with different heat storage and heat transport characteristics. In particular, we consider a temperate climate with polar ice caps (like the modern Earth) and a snowball state where the oceans are globally covered in ice. We first quantitatively study the periodic radiative forcing from, and climatic response to, rotation, obliquity, and eccentricity. Orbital eccentricity and seasonal changes in albedo cause variations in the global-mean absorbed flux. The responses of the two climates to these global seasons indicate that the temperate planet has 3 Multiplication-Sign the bulk heat capacity of the snowball planet due to the presence of liquid water oceans. The obliquity seasons in the temperate simulation are weaker than one would expect based on thermal inertia alone; this is due to cross-equatorial oceanic and atmospheric energy transport. Thermal inertia and cross-equatorial heat transport have qualitatively different effects on obliquity seasons, insofar as heat transport tends to reduce seasonal amplitude without inducing a phase lag. For an Earth-like planet, however, this effect is masked by the mixing of signals from low thermal inertia regions (sea ice and land) with that from high thermal inertia regions (oceans), which also produces a damped response with small phase lag. We then simulate thermal light curves as they would appear to a high-contrast imaging mission (TPF-I/Darwin). In order of importance to the present simulations, which use modern-Earth orbital parameters, the three drivers of thermal phase variations are (1) obliquity seasons, (2) diurnal cycle, and (3) global seasons. Obliquity seasons are the dominant source of phase variations for most viewing angles. A pole-on observer would measure peak-to-trough amplitudes of 13% and 47% for the temperate and snowball climates, respectively. Diurnal heating is important for equatorial observers ({approx}5% phase variations), because the obliquity effects cancel to first order from that vantage. Finally, we compare the prospects of optical versus thermal direct imaging missions for constraining the climate on exoplanets and conclude that while zero- and one-dimensional models are best served by thermal measurements, second-order models accounting for seasons and planetary thermal inertia would require both optical and thermal observations.

Cowan, Nicolas B. [Center for Interdisciplinary Exploration and Research in Astrophysics and Department of Physics and Astronomy, Northwestern University, 2131 Tech Drive, Evanston, IL 60208 (United States); Voigt, Aiko [Max Planck Institute for Meteorology, Bundesstr. 53, D-20146 Hamburg (Germany); Abbot, Dorian S., E-mail: n-cowan@nortwestern.edu [Department of Geophysical Sciences, University of Chicago, 5734 South Ellis Avenue, Chicago, IL 60637 (United States)

2012-09-20T23:59:59.000Z

404

ARM - Field Campaign - Observations and Modeling of the Green Ocean Amazon:  

NLE Websites -- All DOE Office Websites (Extended Search)

Semi-Volatile Thermal desorption Aerosol Gas chromatograph (SVTAG) Semi-Volatile Thermal desorption Aerosol Gas chromatograph (SVTAG) Related Campaigns Observations and Modeling of the Green Ocean Amazon (GOAMAZON 2014) 2014.01.01, Martin, AMF Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Campaign : Observations and Modeling of the Green Ocean Amazon: Semi-Volatile Thermal desorption Aerosol Gas chromatograph (SVTAG) 2014.02.01 - 2014.10.15 Lead Scientist : Allen Goldstein Description In areas where biogenic emissions are oxidized in the presence of anthropogenic pollutants such as SO2, NOx and black carbon, it has become increasingly apparent that secondary organic aerosol (SOA) formation from biogenic volatile organic compounds (VOCs) is substantially enhanced. Research is urgently needed to elucidate fundamental processes of natural

405

Ocean Biogeographic Information System (OBIS)  

DOE Data Explorer (OSTI)

The Ocean Biogeographic Information System (OBIS) was established by the Census of Marine Life program. It is an evolving strategic alliance of people and organizations sharing a vision to make marine biogeographic data, from all over the world, freely available over the World Wide Web. It is not a project or program, and is not limited to data from CoML-related projects. Any organization, consortium, project or individual may contribute. OBIS provides, on an open access basis through the World Wide Web, taxonomically and geographically resolved data on marine life and the ocean environment, interoperability with similar databases, and software tools for data exploration and analysis. The OBIS secretariat is hosted by Rutgers University, Institute for Marine and Coastal Sciences. [Copied, then edited from http://www.iobis.org/about/

406

Global warming projections: Sensitivity to deep ocean mixing  

E-Print Network (OSTI)

The climatological impact of increases in greenhouse gas concentrations in the atmosphere, despite being a subject of intensive study in recent years, is still very uncertain [1, 2]. One major uncertainty affecting possible climate change that has not received enough attention is the uncertainty in heat uptake by the deep ocean. We analyze the influence of this process and its uncertainty on climate predictions by means of numerical simulations with a 2-dimensional (2D) climate model. In the case of high climate sensitivity, as a result of uncertainty in deep ocean heat uptake, there is more than a factor of two uncertainty in the predicted increase of surface temperature. The corresponding uncertainty in the sea level rise due to thermal expansion is much larger than the uncertainty in the predicted temperature change and is significant even in the case of low climate sensitivity. The uncertainty in the rate of heat uptake by the deep ocean has not been included in the projections of climate change made by the Intergovernmental Panel on Climate Change (IPCC) [1,2]. However, our results show that this uncertainty plays a very important role in defining the ranges ofÊpossible warming and, especially, of sea level rise. To assess the uncertainty we have used a 2-dimensional (zonally averaged) climate model, the MIT 2D model [3,4,5]. This model allows us to

Andrei P. Sokolov; Peter H. Stone

1996-01-01T23:59:59.000Z

407

A 780-year annually resolved record of Indian Ocean monsoon precipitation from a speleothem from south Oman  

E-Print Network (OSTI)

A 780-year annually resolved record of Indian Ocean monsoon precipitation from a speleothem from 25 October 2002. [1] Meteorological records of monsoon rainfall in the Indian Ocean are generally monsoon variation on decadal and centennial timescales, to determine what factors influence the intensity

Massachusetts at Amherst, University of

408

Determination of Earths transient and equilibrium climate sensitivities from observations over the twentieth century: Strong dependence on assumed forcing  

Science Conference Proceedings (OSTI)

Relations among observed changes in global mean surface temperature, ocean heat content, ocean heating rate, and calculated radiative forcing, all as a function of time over the twentieth century, that are based on a two-compartment energy balance model, are used to determine key properties of Earth's climate system. The increase in heat content of the world ocean, obtained as the average of several recent compilations, is found to be linearly related to the increase in global temperature over the period 1965-2009; the slope, augmented to account for additional heat sinks, which is an effective heat capacity of the climate system, is 21.8 {+-} 2.1 W year m{sup -2} K{sup -1} (one sigma), equivalent to the heat capacity of 170 m of seawater (for the entire planet) or 240 m for the world ocean. The rate of planetary heat uptake, determined from the time derivative of ocean heat content, is found to be proportional to the increase in global temperature relative to the beginning of the twentieth century with proportionality coefficient 1.05 {+-} 0.06 W m{sup -2} K{sup -1}. Transient and equilibrium climate sensitivities were evaluated for six published data sets of forcing mainly by incremental greenhouse gases and aerosols over the twentieth century as calculated by radiation transfer models; these forcings ranged from 1.1 to 2.1 W m{sup -2}, spanning much of the range encompassed by the 2007 assessment of the Intergovernmental Panel on Climate Change (IPCC). For five of the six forcing data sets, a rather robust linear proportionality obtains between the observed increase in global temperature and the forcing, allowing transient sensitivity to be determined as the slope. Equilibrium sensitivities determined by two methods that account for the rate of planetary heat uptake range from 0.31 {+-} 0.02 to 1.32 {+-} 0.31 K (W m{sup -2}){sup -1} (CO{sub 2} doubling temperature 1.16 {+-} 0.09-4.9 {+-} 1.2 K), more than spanning the IPCC estimated 'likely' uncertainty range, and strongly anticorrelated with the forcing used to determine the sensitivities. Transient sensitivities, relevant to climate change on the multidecadal time scale, are considerably lower, 0.23 {+-} 0.01 to 0.51 {+-} 0.04 K (W m{sup -2}){sup -1}. The time constant characterizing the response of the upper ocean compartment of the climate system to perturbations is estimated as about 5 years, in broad agreement with other recent estimates, and much shorter than the time constant for thermal equilibration of the deep ocean, about 500 years.

Schwartz S. E.

2012-05-04T23:59:59.000Z

409

Thermal and non-thermal energies in solar flares  

E-Print Network (OSTI)

The energy of the thermal flare plasma and the kinetic energy of the non-thermal electrons in 14 hard X-ray peaks from 9 medium-sized solar flares have been determined from RHESSI observations. The emissions have been carefully separated in the spectrum. The turnover or cutoff in the low-energy distribution of electrons has been studied by simulation and fitting, yielding a reliable lower limit to the non-thermal energy. It remains the largest contribution to the error budget. Other effects, such as albedo, non-uniform target ionization, hot target, and cross-sections on the spectrum have been studied. The errors of the thermal energy are about equally as large. They are due to the estimate of the flare volume, the assumption of the filling factor, and energy losses. Within a flare, the non-thermal/thermal ratio increases with accumulation time, as expected from loss of thermal energy due to radiative cooling or heat conduction. Our analysis suggests that the thermal and non-thermal energies are of the same magnitude. This surprising result may be interpreted by an efficient conversion of non-thermal energy to hot flare plasma.

Pascal Saint-Hilaire; Arnold O. Benz

2005-03-03T23:59:59.000Z

410

Influence Of Three Dynamic Predictive Clothing Insulation Models On Building Energy Use, HVAC Sizing And Thermal Comfort  

E-Print Network (OSTI)

Weather, Clothing and Thermal Adaptation to Indoor Climate,of Determining Acceptable Thermal Conditions, Building andan Adaptive Model of Thermal Comfort and Preference, Final

Schiavon, Stefano; Lee, Kwang Ho

2013-01-01T23:59:59.000Z

411

Categorical Exclusion Determinations: Office of Energy Efficiency...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Golden Field Office April 1, 2010 CX-001504: Categorical Exclusion Determination Ocean Wind Energy Analysis CX(s) Applied: B3.1, A9, A11 Date: 04012010 Location(s): Chapel...

412

Categorical Exclusion Determinations: National Energy Technology...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Technology Laboratory April 1, 2010 CX-001504: Categorical Exclusion Determination Ocean Wind Energy Analysis CX(s) Applied: B3.1, A9, A11 Date: 04012010 Location(s): Chapel...

413

CX-006094: Categorical Exclusion Determination | Department of...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

CX-006094: Categorical Exclusion Determination University of New Hampshire Center for Ocean Renewable Energy Infrastructure CX(s) Applied: A9, B3.1, B3.6 Date: 06282011...

414

Determining Velocities and Mixing Coefficients from Tracers  

Science Conference Proceedings (OSTI)

The effort to determine oceanic velocities from tracer distributions relies on a knowledge of the effects of mixing. However, the macroscopic diffusion coefficient, K, is generally not known and must be calculated along with the velocity. The ...

Jae Hak Lee; George Veronis

1989-04-01T23:59:59.000Z

415

Impact of the Southern ocean winds on sea-ice - ocean interaction and its associated global ocean circulation in a warming world  

E-Print Network (OSTI)

This dissertation discusses a linkage between the Southern Ocean (SO) winds and the global ocean circulation in the framework of a coarse-resolution global ocean general circulation model coupled to a sea-ice model. In addition to reexamination of the conventional linkage that begins with northward Ekman transport and extends to the North Atlantic (NA) overturning, the author investigates a new linkage that begins with the Southern Hemisphere (SH) sea-ice – ocean interaction perturbed by the anomalous SO winds and extends to the SH overturning, the response of the NA overturning, and the long-term baroclinic adjustment of the Antarctic Circumpolar Current (ACC). How the above two linkages will interact with each other in a warming world is also investigated. An interactive momentum flux forcing, allowing for the strength of momentum flux between atmosphere and sea ice to vary in response to the simulated sea-ice conditions, enhances wind-driven ice divergence to increase the fraction of leads and polynyas, which increases dense water formation, and thus intensifies convection. Within three experimental frameworks, this increased dense water consistently increases the Antarctic Bottom Water formation, which directly intensifies the SH overturning and indirectly weakens the NA overturning. As a result of the hemispheric change in overturning circulations, the meridional density gradient across the ACC appears to increase, ultimately increasing the baroclinic part of the ACC via an enhanced thermal wind shear. Subsequently, impacts of the poleward shifted and intensified SH subpolar westerly winds (SWWs) on the global ocean circulation are investigated in phases. When the SWWs are only shifted poleward, the effect of the anomalous winds is transmitted to the northern NA, decreasing both the NA overturning and the North Atlantic Deep Water (NADW) outflow. However, when the SWWs are shifted poleward and intensified, this effect is cut off by the intensified Deacon cell overturning, and is not transmitted to the northern NA, and instead increases the NADW outflow substantially. To sum up, with respect to the SO winds perturbed by the global warming, the SH overturning cell and the NADW outflow increase, leading to an increase in the volume transport of the ACC.

Cheon, Woo Geunn

2008-08-01T23:59:59.000Z

416

Determination of Hydrogen Peak Temperatures and Trapping ...  

Science Conference Proceedings (OSTI)

Presentation Title, Determination of Hydrogen Peak Temperatures and Trapping Energies of Various Lattice Defects In Iron Using Thermal Desorption ...

417

BUBBLE MOTION AND SIZE VARIATION DURING THERMAL ...  

Science Conference Proceedings (OSTI)

... For a water-steam system conditions are determined for a stationary bubble in which the effects of buoyancy and thermal migration are balanced. ...

418

THERMAL NEUTRON BACKSCATTER IMAGING.  

DOE Green Energy (OSTI)

Objects of various shapes, with some appreciable hydrogen content, were exposed to fast neutrons from a pulsed D-T generator, resulting in a partially-moderated spectrum of backscattered neutrons. The thermal component of the backscatter was used to form images of the objects by means of a coded aperture thermal neutron imaging system. Timing signals from the neutron generator were used to gate the detection system so as to record only events consistent with thermal neutrons traveling the distance between the target and the detector. It was shown that this time-of-flight method provided a significant improvement in image contrast compared to counting all events detected by the position-sensitive {sup 3}He proportional chamber used in the imager. The technique may have application in the detection and shape-determination of land mines, particularly non-metallic types.

VANIER,P.; FORMAN,L.; HUNTER,S.; HARRIS,E.; SMITH,G.

2004-10-16T23:59:59.000Z

419

Climate, Ocean and Sea Ice Modeling (COSIM)  

NLE Websites -- All DOE Office Websites (Extended Search)

Earth, Space Sciences » Earth, Space Sciences » Climate, Ocean and Sea Ice Modeling (COSIM) Climate, Ocean and Sea Ice Modeling (COSIM) The COSIM project develops advanced ocean and ice models for evaluating the role of ocean and ice in high-latitude climate change and projecting the impacts of high-latitude change on regions throughout the globe. Get Expertise Phil Jones COSIM Email Matthew Hecht COSIM Email Elizabeth Hunke COSIM Email Mat Maltrud COSIM Email Bill Lipscomb COSIM Email Scott Elliott COSIM Email Todd Ringler COSIM Email We are also developing a set of next-generation ocean and ice models with variable resolution horizontal grids to focus resolution on regions of interest or regions where specific processes (like eddies) need to be resolved. Summary The COSIM project develops advanced ocean and ice models for evaluating the

420

Ocean - Regional Planning Efforts | Data.gov  

NLE Websites -- All DOE Office Websites (Extended Search)

Regional Planning Efforts Regional Planning Efforts Ocean Data Tools Technical Guide Map Gallery Regional Planning Feedback Ocean You are here Data.gov » Communities » Ocean Regional Planning Efforts Marine planning is a science-based process that provides transparent information about ocean use and guarantees the public and stakeholders a voice early on in decisions affecting the uses of the marine environment. It is an inclusive, bottom-up approach that gives the Federal Government, States, and Tribes, with input from local communities, stakeholders, and the public, the ability to make informed decisions on how best to optimize the use of and protect the ocean, coasts, and Great Lakes. Under the National Ocean Policy, the United States is subdivided into nine regional planning areas. Within each region, Federal, State, and Tribal

Note: This page contains sample records for the topic "determination ocean thermal" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


421

Horizontal stirring in the global ocean  

E-Print Network (OSTI)

Horizontal mixing and the distribution of coherent structures in the global ocean are analyzed using Finite-Size Lyapunov Exponents (FSLE), computed for the surface velocity field derived from the Ocean general circulation model For the Earth Simulator (OFES). FSLEs measure horizontal stirring and dispersion; additionally, the transport barriers which organize the oceanic flow can roughly be identified with the ridges of the FSLE field. We have performed a detailed statistical study, particularizing for the behaviour of the two hemispheres and different ocean basins. The computed Probability Distributions Functions (PDFs) of FSLE are broad and asymmetric. Horizontal mixing is generally more active in the northern hemisphere than in the southern one. Nevertheless the Southern Ocean is the most active ocean, and the Pacific the less active one. A striking result is that the main currents can be classified in two 'activity classes': Western Boundary Currents, which have broad PDFs with large FSLE values, and Eas...

Hernández-Carrasco, I; Hernández-García, E; Turiel, A

2011-01-01T23:59:59.000Z

422

On the World-wide Circulation of the Deeper Waters of the World Ocean  

E-Print Network (OSTI)

circulation of the Pacific Ocean: Flow patterns, tracers,circulation of the Indian Ocean: Flow patterns, tracers, andthe figures. Fig. 1 Pacific Ocean winds Fig. 2 Pacific Ocean

Reid, Joseph L

2009-01-01T23:59:59.000Z

423

OCEAN DRILLING PROGRAM LEG 155 SCIENTIFIC PROSPECTUS  

E-Print Network (OSTI)

OCEAN DRILLING PROGRAM LEG 155 SCIENTIFIC PROSPECTUS AMAZON DEEP-SEA FAN Dr. Roger D. Flood Co of Canada P.O. Box 1006 Dartmouth, Nova Scotia Canada B2Y4A2 Dr. Adam Klaus Staff Scientist, Leg l55 Ocean and handling. D I S C L A I M E R This publication was prepared by the Ocean Drilling Program, Texas A

424

The Effects of Mesoscale Ocean–Atmosphere Coupling on the Large-Scale Ocean Circulation  

Science Conference Proceedings (OSTI)

Small-scale variation in wind stress due to ocean–atmosphere interaction within the atmospheric boundary layer alters the temporal and spatial scale of Ekman pumping driving the double-gyre circulation of the ocean. A high-resolution ...

Andrew Mc C. Hogg; William K. Dewar; Pavel Berloff; Sergey Kravtsov; David K. Hutchinson

2009-08-01T23:59:59.000Z

425

Observations and Simulations of Upper-Ocean Response to Wind Events during the Ocean Storms Experiment  

Science Conference Proceedings (OSTI)

The Ocean Storms dataset is used to compile observations of the oceanic response to midlatitude storms. Of particular interest are episodic mixed layer temperature cooling events whose characteristics are reviewed. The data include subsurface ...

W. G. Large; G. B. Crawford

1995-11-01T23:59:59.000Z

426

Mechanisms Governing Interannual Variability of Upper-Ocean Temperature in a Global Ocean Hindcast Simulation  

Science Conference Proceedings (OSTI)

The interannual variability in upper-ocean (0–400 m) temperature and governing mechanisms for the period 1968–97 are quantified from a global ocean hindcast simulation driven by atmospheric reanalysis and satellite data products. The ...

Scott C. Doney; Steve Yeager; Gokhan Danabasoglu; William G. Large; James C. McWilliams

2007-07-01T23:59:59.000Z

427

Seasonal Variations of Upper Ocean Transport from the Pacific to the Indian Ocean via Indonesian Straits  

Science Conference Proceedings (OSTI)

Seasonal variations of upper-ocean mass transport between the Pacific and Indian Oceans via the Indonesian Throughflow (ITF) are examined using numerical experiments with a 1½-layer, reduced-gravity model forced with specific climatological ...

James T. Potemra

1999-11-01T23:59:59.000Z

428

On the Ocean’s Large-Scale Circulation near the Limit of No Vertical Mixing  

Science Conference Proceedings (OSTI)

By convention, the ocean’s large-scale circulation is assumed to be a thermohaline overturning driven by the addition and extraction of buoyancy at the surface and vertical mixing in the interior. Previous work suggests that the overturning ...

J. R. Toggweiler; B. Samuels

1998-09-01T23:59:59.000Z

429

Global Climate and Ocean Circulation on an Aquaplanet Ocean–Atmosphere General Circulation Model  

Science Conference Proceedings (OSTI)

A low-resolution coupled ocean–atmosphere general circulation model (OAGCM) is used to study the characteristics of the large-scale ocean circulation and its climatic impacts in a series of global coupled aquaplanet experiments. Three ...

Robin S. Smith; Clotilde Dubois; Jochem Marotzke

2006-09-01T23:59:59.000Z

430

OCEAN DRILLING PROGRAM LEG 103 SCIENTIFIC PROSPECTUS  

E-Print Network (OSTI)

OCEAN DRILLING PROGRAM LEG 103 SCIENTIFIC PROSPECTUS GALICIA BANK Gilbert Boillot Edward L of Energy, Mines and Resources (Canada) Deutsche Forschungsgemeinschaft (Federal Republic of Germany

431

Sequestration of CO2 by Ocean Fertilization  

NLE Websites -- All DOE Office Websites (Extended Search)

Presentation for NETL Conference on Carbon Sequestration May 14-17, 2001 SEQUESTRATION OF CO 2 BY OCEAN FERTILIZATION Authors: Dr. Michael Markels, Jr. (Markels@greenseaventure.com...

432

Strong wind forcing of the ocean  

E-Print Network (OSTI)

high wind speeds in tropical cyclones. Nature, 422, 279-283.response of the tropical cyclone and the ocean. Journal ofinteraction theory for tropical cyclones: Part i : steady-

Zedler, Sarah E.

2007-01-01T23:59:59.000Z

433

FOAM:The Fast Ocean Atmosphere Model  

NLE Websites -- All DOE Office Websites (Extended Search)

Models Performance User Resources Publications History Developer's Page FOAM The Fast Ocean Atmosphere Model cup2.jpeg (48474 bytes) Image made by Johan Kellum with Vis5D...

434

NIST Aids the National Oceanic and Atmospheric ...  

Science Conference Proceedings (OSTI)

... Ocean Service, Mote Marine Laboratory, Dolphin Quest ... US Fish and Wildlife Service, South Carolina ... blood mercury levels to health parameters in ...

2012-10-02T23:59:59.000Z

435

Thermal Properties  

Science Conference Proceedings (OSTI)

Table 12   Thermal conductivities of polymers and other materials...40,000 2.8 Aluminum 24,000 1.7 Steel 5000 0.35 Granite 350 0.02 Crown glass (75 wt% silica) 90 0.006 Source: Ref 4...

436

Subduction over the Southern Indian Ocean in a High-Resolution Atmosphere–Ocean Coupled Model  

Science Conference Proceedings (OSTI)

This study examines the subduction of the Subantarctic Mode Water in the Indian Ocean in an ocean–atmosphere coupled model in which the ocean component is eddy permitting. The purpose is to assess how sensitive the simulated mode water is to the ...

Mei-Man Lee; A. J. George Nurser; I. Stevens; Jean-Baptiste Sallée

2011-08-01T23:59:59.000Z

437

A Reanalysis of Ocean Climate Using Simple Ocean Data Assimilation (SODA)  

Science Conference Proceedings (OSTI)

This paper describes the Simple Ocean Data Assimilation (SODA) reanalysis of ocean climate variability. In the assimilation, a model forecast produced by an ocean general circulation model with an average resolution of 0.25° × 0.4° × 40 levels is ...

James A. Carton; Benjamin S. Giese

2008-08-01T23:59:59.000Z

438

CX-007700: Categorical Exclusion Determination | Department of...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Exclusion Determination CX-007700: Categorical Exclusion Determination University of Utah - A New Generation High Density Thermal Battery Based on Advanced Metal Hydrides CX(s)...

439

CX-001922: Categorical Exclusion Determination | Department of...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

22: Categorical Exclusion Determination CX-001922: Categorical Exclusion Determination Biogas to Regenerative Thermal Oxidizer CX(s) Applied: B2.5, B5.1 Date: 03312010...

440

CX-006537: Categorical Exclusion Determination | Department of...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Determination CX-006537: Categorical Exclusion Determination Electrically Supported Thermal Exchange (ELSTEX) Technology CX(s) Applied: A9, B3.6 Date: 08232011 Location(s):...

Note: This page contains sample records for the topic "determination ocean thermal" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


441

CX-000460: Categorical Exclusion Determination | Department of...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

0: Categorical Exclusion Determination CX-000460: Categorical Exclusion Determination Thermal Integration of Carbon Dioxide Compression Processes with Coal-Fired Power Plants...

442

CX-003170: Categorical Exclusion Determination | Department of...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Determination CX-003170: Categorical Exclusion Determination Innovative Phase Change Thermal Energy Storage Solution for Baseload Power CX(s) Applied: B3.6 Date: 07262010...

443

CX-007037: Categorical Exclusion Determination | Department of...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Determination CX-007037: Categorical Exclusion Determination Stand Alone Battery Thermal Management System CX(s) Applied: B3.6 Date: 09202011 Location(s): Golden,...

444

CX-004269: Categorical Exclusion Determination | Department of...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Determination CX-004269: Categorical Exclusion Determination Analytical Physics - Thermal Analysis CX(s) Applied: B3.6 Date: 10202010 Location(s): Albany, Oregon Office(s):...

445

CX-007032: Categorical Exclusion Determination | Department of...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Determination CX-007032: Categorical Exclusion Determination Stand Alone Battery Thermal Management System CX(s) Applied: B3.6 Date: 09202011 Location(s): Kariya, Japan,...

446

CX-010329: Categorical Exclusion Determination | Department of...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

9: Categorical Exclusion Determination CX-010329: Categorical Exclusion Determination Thermal-Chemical Decomposition of Graphite CX(s) Applied: B3.6 Date: 04042013 Location(s):...

447

CX-004095: Categorical Exclusion Determination | Department of...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

5: Categorical Exclusion Determination CX-004095: Categorical Exclusion Determination Thermal Transport Properties of Nanostructured Materials for Energy Conversion CX(s) Applied:...

448

CX-007033: Categorical Exclusion Determination | Department of...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Determination CX-007033: Categorical Exclusion Determination Stand Alone Battery Thermal Management System CX(s) Applied: B3.6 Date: 09202011 Location(s): Southfield,...

449

CX-009015: Categorical Exclusion Determination | Department of...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Determination CX-009015: Categorical Exclusion Determination "Scattering Solar Thermal Concentrators CX(s) Applied: B3.6, B5.17 Date: 08022012 Location(s): Pennsylvania...

450

Changes in Thermal Structure of the Equatorial Pacific during the 1972 El Niño as Revealed by Bathythermograph Observations  

Science Conference Proceedings (OSTI)

Bathythermograph data from the equatorial Pacific are used to study changes in upper ocean thermal structure during the period 1971–73 using data averaged over 2- or 3-month segments. This gives reasonable descriptions of the changes in two ...

A. E. Gill

1982-12-01T23:59:59.000Z

451

Characteristics of Strong Updrafts in Precipitation Systems over the Central Tropical Pacific Ocean and in the Amazon  

Science Conference Proceedings (OSTI)

Airborne in situ measurements of updrafts in tropical convective storms were analyzed to determine the similarities and differences between updrafts in a tropical continental and a tropical oceanic region. Two hundred fifteen updraft cores from ...

Nicholas F. Anderson; Cedric A. Grainger; Jeffrey L. Stith

2005-05-01T23:59:59.000Z

452

Energy Transports by Ocean and Atmosphere Based on an Entropy Extremum Principle. Part 1: Zonal Averaged Transports  

Science Conference Proceedings (OSTI)

Required global energy transports determined from Nimbus-7 satellite net radiation measurements have been separated into atmospheric and oceanic components by applying a maximum entropy production principle to the atmospheric system. Strong ...

Byung-Ju Sohn; Eric A. Smith

1993-05-01T23:59:59.000Z

453

The Relative Importance of Clouds and Sea Ice for the Solar Energy Budget of the Southern Ocean  

Science Conference Proceedings (OSTI)

The effects of clouds and sea ice on the solar radiation budget are determined for the Southern Ocean around Antarctica between latitudes 50° and 80°S. Distributions of cloud optical depth are used, together with distributions of surface albedo, ...

Melanie F. Fitzpatrick; Stephen G. Warren

2007-03-01T23:59:59.000Z

454

The Climatology of Cyclones and Anticyclones over North America and Surrounding Ocean Environs for January and July, 1950–77  

Science Conference Proceedings (OSTI)

The climatology. of cyclones and anticyclones is studied using a 2° latitude/longitude grid spanning North America and surrounding ocean environs for January and July 1950–77. In addition to determining total area statistics, areas distributions ...

K. M. Zishka; P. J. Smith

1980-04-01T23:59:59.000Z

455

An Ensemble Ocean Data Assimilation System for Seasonal Prediction  

Science Conference Proceedings (OSTI)

A new ensemble ocean data assimilation system, developed for the Predictive Ocean Atmosphere Model for Australia (POAMA), is described. The new system is called PEODAS, the POAMA Ensemble Ocean Data Assimilation System. PEODAS is an approximate ...

Yonghong Yin; Oscar Alves; Peter R. Oke

2011-03-01T23:59:59.000Z

456

Effects of Penetrative Radiation on the Upper Tropical Ocean Circulation  

Science Conference Proceedings (OSTI)

The effects of penetrative radiation on the upper tropical ocean circulation have been investigated with an ocean general circulation model (OGCM) with attenuation depths derived from remotely sensed ocean color data. The OGCM is a reduced ...

Raghu Murtugudde; James Beauchamp; Charles R. McClain; Marlon Lewis; Antonio J. Busalacchi

2002-03-01T23:59:59.000Z

457

The Response of Quasigeostrophic Oceanic Vortices to Tropical Cyclone Forcing  

Science Conference Proceedings (OSTI)

The response of quasigeostrophic (QG) oceanic vortices to tropical cyclone (TC) forcing is investigated using an isopycnic ocean model. Idealized oceanic currents and wind fields derived from observational data acquired during Hurricane Katrina ...

Benjamin Jaimes; Lynn K. Shay; George R. Halliwell

2011-10-01T23:59:59.000Z

458

Global ocean wind power sensitivity to surface layer stability  

E-Print Network (OSTI)

power distribution over the ocean, Geophys. Res. Lett. , 35,of wind speed over the ocean, J. Appl. Meteorol. , 25,and heat flux over the open ocean in gale force winds, J.

Capps, Scott B; Zender, Charles S

2009-01-01T23:59:59.000Z

459

Effects of atmospheric inorganic nitrogen deposition on ocean biogeochemistry  

E-Print Network (OSTI)

to decadal global forcing for ocean and sea-ice models: Theorganic nitrogen to the oceans, Nature, 376, 243 – 246.trace species to the world ocean, Global Biogeochem. Cycles,

Krishnamurthy, Aparna; Moore, J. Keith; Zender, Charles S; Luo, Chao

2007-01-01T23:59:59.000Z

460

High Biomass Low Export Regimes in the Southern Ocean  

E-Print Network (OSTI)

Z.I. , 2004. Southern ocean iron enrichment experiment:in the surface global ocean based on Moderate-Resolutionof Geophysical Research-Oceans 110 (C7). Bé, A.W.H. ,

Lam, Phoebe J.; Bishop, James K.B.

2006-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "determination ocean thermal" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


461

Molecular diversity and adaptations of microorganisms from the deep ocean  

E-Print Network (OSTI)

in the North Pacific ocean. ISME J. 3:1374-1386. DeLong, E.microbial assemblages in the ocean's interior. Science 311:J. 4:159-170. Schlitzer, R. 2010. Ocean Data View. [http://

Eloe, Emiley Ansley

2011-01-01T23:59:59.000Z

462

Ocean Dynamics, Thermocline Adjustment, and Regulation of Tropical SST  

Science Conference Proceedings (OSTI)

The role of tropical Pacific ocean dynamics in regulating the ocean response to thermodynamic forcing is investigated using an ocean general circulation model (GCM) coupled to a model of the atmospheric mixed layer. It is found that the basin ...

Richard Seager; Ragu Murtugudde

1997-03-01T23:59:59.000Z

463

An Observing System Simulation Experiment for the Indian Ocean  

Science Conference Proceedings (OSTI)

An integrated in situ Indian Ocean observing system (IndOOS) is simulated using a high-resolution ocean general circulation model (OGCM) with daily mean forcing, including an estimate of subdaily oceanic variability derived from observations. The ...

Gabriel A. Vecchi; Matthew J. Harrison

2007-07-01T23:59:59.000Z

464

Effects of variable wind stress on ocean heat content  

E-Print Network (OSTI)

Ocean heat content change (ocean heat uptake) has an important role in variability of the Earth's heat balance. The understanding of which methods and physical processes control ocean heat uptake needs improvement in order ...

Klima, Kelly

2008-01-01T23:59:59.000Z

465

The Volunteer Observing Ship and Future Ocean Monitoring  

Science Conference Proceedings (OSTI)

Widespread and sustained in situ ocean measurements are essential to an improved understanding of the state of the ocean and its role in global change. Merchant marine vessels can play a major role in ocean monitoring, yet apart from routine ...

Thomas Rossby; Gerold Siedler; Walter Zenk

1995-01-01T23:59:59.000Z

466

Measurement of Thermal Diffusity and Flow Resistance for TCAP Materials  

DOE Green Energy (OSTI)

SRS uses the Thermal Cycling Absorption Process (TCAP) to separate isotopes of hydrogen. The frequency of thermal cycles is a limit of the productivity of the process and that frequency is largely determined by the thermal diffusivity of the absorbent material. For a given tube diameter, a larger thermal diffusivity decreases the time required for each cycle. In 1998, the Engineering Development Laboratory measured thermal diffusivity and thermal conductivity for three TCAP materials in helium.

STEIMKE, JOHN

2004-11-11T23:59:59.000Z

467

AQUIFER THERMAL ENERGY STORAGE  

E-Print Network (OSTI)

aquifers for thermal energy storage. Problems outlined aboveModeling of Thermal Energy Storage in Aquifers," Proceed-ings of Aquifer Thermal Energy Storage Workshop, Lawrence

Tsang, C.-F.

2011-01-01T23:59:59.000Z

468

AQUIFER THERMAL ENERGY STORAGE  

E-Print Network (OSTI)

using aquifers for thermal energy storage. Problems outlinedmatical Modeling of Thermal Energy Storage in Aquifers,"Proceed- ings of Aquifer Thermal Energy Storage Workshop,

Tsang, C.-F.

2011-01-01T23:59:59.000Z

469

The Modular Ocean Data Assimilation System (MODAS)  

Science Conference Proceedings (OSTI)

The Modular Ocean Data Assimilation System (MODAS) is used by the U.S. Navy for depiction of three-dimensional fields of temperature and salinity over the global ocean. MODAS includes both a static climatology and a dynamic climatology. While the ...

D. N. Fox; W. J. Teague; C. N. Barron; M. R. Carnes; C. M. Lee

2002-02-01T23:59:59.000Z

470

Wind Stress Measurements from the Open Ocean  

Science Conference Proceedings (OSTI)

An automatic inertial dissipation system was used during three cruises of the RRS Discovery in the Southern Ocean to obtain a large dataset of open ocean wind stress estimates. The wind speed varied from near calm to 26 m s?1, and the sea-air ...

Margaret Yelland; Peter K. Taylor

1996-04-01T23:59:59.000Z

471

Upper Ocean Response to a Hurricane  

Science Conference Proceedings (OSTI)

The upper ocean response to a moving hurricane is studied using historical air-sea data and a three-dimensional numerical ocean model. Sea surface temperature (SST) response is emphasized. The model has a surface mixed-layer (ML) that entrains ...

James F. Price

1981-02-01T23:59:59.000Z

472

OCEAN DRILLING PROGRAM LEG 153 PRELIMINARY REPORT  

E-Print Network (OSTI)

Ocean Drilling Program Texas A&M University 1000 Discovery Drive College Station TX 77845-9547 USA by the Ocean Drilling Program, Texas A&M University, as an account of work performed under the international of the National Science Foundation, the participating agencies, Joint Oceanographic Institutions, Inc., Texas A&M

473

OCEAN DRILLING PROGRAM LEG 138 PRELIMINARY REPORT  

E-Print Network (OSTI)

Ocean Drilling Program Texas A&M University 1000 Discovery Drive College Station TX 77845-9547 USA, Texas A&M University, as an account of work performed under the international Ocean Drilling Program Foundation, the participating agencies, Joint Oceanographic Institutions, Inc., Texas A&M University

474

Statistical mechanics and ocean circulation Rick Salmon  

E-Print Network (OSTI)

Statistical mechanics and ocean circulation Rick Salmon Scripps Institution of Oceanography, UCSD equilibrium statistical mechanics based upon the conservation of energy and potential enstrophy to the mass. The equilibrium state resembles the buoyancy structure actually observed. Key words: statistical mechanics, ocean

Salmon, Rick

475

Internal Variability of Indian Ocean SST  

Science Conference Proceedings (OSTI)

A 40-yr integration of an eddy-resolving numerical model of the tropical Indian Ocean is analyzed to quantify the interannual variability that is caused by the internal variability of ocean dynamics. It is found that along the equator in the ...

Markus Jochum; Raghu Murtugudde

2005-09-01T23:59:59.000Z

476

The Parallelization of the Princeton Ocean Model  

Science Conference Proceedings (OSTI)

In this paper we present the parallel implementation of the Princeton Ocean Model (POM) using message passing. Domain decomposition techniques are used for the horizontal discretization whereas in the vertical direction each column per grid point is ... Keywords: domain decomposition, message passing, princeton ocean model

L. A. Boukas; N. Th. Mimikou; Nikolaos M. Missirlis; G. L. Mellor; A. Lascaratos; G. Korres

1999-08-01T23:59:59.000Z

477

Ocean Motion International LLC | Open Energy Information  

Open Energy Info (EERE)

Ocean Motion International LLC Ocean Motion International LLC Jump to: navigation, search Name Ocean Motion International LLC Place Saulsbury, Tennessee Zip 38067 Sector Ocean Product Marine energy technology firm developing ocean/ wave powered generators. Coordinates 35.052242°, -89.083299° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":35.052242,"lon":-89.083299,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

478

A predictive ocean oil spill model  

SciTech Connect

This is the final report of a two-year, Laboratory-Directed Research and Development (LDRD) project at the Los Alamos National Laboratory (LANL). Initially, the project focused on creating an ocean oil spill model and working with the major oil companies to compare their data with the Los Alamos global ocean model. As a result of this initial effort, Los Alamos worked closely with the Eddy Joint Industry Project (EJIP), a consortium oil and gas producing companies in the US. The central theme of the project was to use output produced from LANL`s global ocean model to look in detail at ocean currents in selected geographic areas of the world of interest to consortium members. Once ocean currents are well understood this information could be used to create oil spill models, improve offshore exploration and drilling equipment, and aid in the design of semi-permanent offshore production platforms.

Sanderson, J.; Barnette, D. [Sandia National Labs., Albuquerque, NM (United States); Papodopoulos, P. [Oak Ridge National Lab., TN (United States); Schaudt, K. [Marathon Oil Co., Littleton, CO (United States); Szabo, D. [Mobil Research and Development Corp., Dallas, TX (United States)

1996-07-01T23:59:59.000Z

479

Clean Cities: Ocean State Clean Cities coalition  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Ocean State Clean Cities Coalition Ocean State Clean Cities Coalition The Ocean State Clean Cities coalition works with vehicle fleets, fuel providers, community leaders, and other stakeholders to reduce petroleum use in transportation. Ocean State Clean Cities coalition Contact Information Wendy Lucht 401-874-2792 wlucht@uri.edu Coalition Website Clean Cities Coordinator Wendy Lucht Photo of Wendy Lucht Wendy Lucht has worked as the Ocean State Clean Cities coordinator at the University of Rhode Island (URI) since 2008 but has worked at URI since 1999. Lucht is working to make Rhode Island the first state certified by Project Get Ready, an initiative preparing cities and states for the arrival of plug-in hybrid electric vehicles (PHEV). As part of this effort, Lucht is serving as chair of the fleet-acquisition committee working on

480

Radiometric Validation of ERS-1 Along-Track Scanning Radiometer Average Sea Surface Temperature in the Atlantic Ocean  

Science Conference Proceedings (OSTI)

The ERS-1 along-track scanning radiometer (ATSR) provides a half-degree latitude by half-degree longitude average sea surface temperature (ASST) measurement representative of the thermal skin layer of the ocean that is intended for use in global ...

Craig J. Donlon; Ian S. Robinson

1998-06-01T23:59:59.000Z

Note: This page contains sample records for the topic "determination ocean thermal" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


481

A Comparative Analysis of Upper-Ocean Heat Content Variability from an Ensemble of Operational Ocean Reanalyses  

Science Conference Proceedings (OSTI)

Ocean heat content (HC) is one of the key indicators of climate variability and also provides ocean memory critical for seasonal and decadal predictions. The availability of multiple operational ocean analyses (ORAs) now routinely produced around ...

Yan Xue; Magdalena A. Balmaseda; Tim Boyer; Nicolas Ferry; Simon Good; Ichiro Ishikawa; Arun Kumar; Michele Rienecker; Anthony J. Rosati; Yonghong Yin

2012-10-01T23:59:59.000Z

482

Leading Modes of the Upper-Ocean Temperature Interannual Variability along the Equatorial Atlantic Ocean in NCEP GODAS  

Science Conference Proceedings (OSTI)

In this work, the authors analyze the physical mechanisms of interannual variability of the upper-ocean temperature anomaly (OTA) in the equatorial Atlantic Ocean, using ocean reanalysis from the National Centers for Environmental Prediction (NCEP)...

Zeng-Zhen Hu; Arun Kumar; Bohua Huang; Jieshun Zhu

2013-07-01T23:59:59.000Z

483

Development and application of ocean color algorithms for estimating particulate organic carbon in the Southern Ocean from satellite observations  

E-Print Network (OSTI)

and C. R. McClain (1998), Ocean color chlorophyll algorithmsand C. R. McClain (1998), Ocean color chlorophyll algorithmsand M. Culver (2000), Ocean color chlorophyll a algorithms

Allison, David Benjamin

2010-01-01T23:59:59.000Z

484

Employing Satellite-Derived Sea Ice Concentration to Constrain Upper-Ocean Temperature in a Global Ocean GCM  

Science Conference Proceedings (OSTI)

The quality of Southern Ocean sea ice simulations in a global ocean general circulation model (GCM) depends decisively on the simulated upper-ocean temperature. This is confirmed by assimilating satellite-derived sea ice concentration to ...

Achim Stössel

2008-09-01T23:59:59.000Z

485

EA-1336: Ocean Sequestration of Carbon Dioxide Field Experiment...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

6: Ocean Sequestration of Carbon Dioxide Field Experiment, Pittsburgh, Pennsylvania EA-1336: Ocean Sequestration of Carbon Dioxide Field Experiment, Pittsburgh, Pennsylvania...

486

Solar thermal financing guidebook  

DOE Green Energy (OSTI)

This guidebook contains information on alternative financing methods that could be used to develop solar thermal systems. The financing arrangements discussed include several lease alternatives, joint venture financing, R and D partnerships, industrial revenue bonds, and ordinary sales. In many situations, alternative financing arrangements can significantly enhance the economic attractiveness of solar thermal investments by providing a means to efficiently allocate elements of risk, return on investment, required capital investment, and tax benefits. A net present value approach is an appropriate method that can be used to investigate the economic attractiveness of alternative financing methods. Although other methods are applicable, the net present value approach has advantages of accounting for the time value of money, yielding a single valued solution to the financial analysis, focusing attention on the opportunity cost of capital, and being a commonly understood concept that is relatively simple to apply. A personal computer model for quickly assessing the present value of investments in solar thermal plants with alternative financing methods is presented in this guidebook. General types of financing arrangements that may be desirable for an individual can be chosen based on an assessment of his goals in investing in solar thermal systems and knowledge of the individual's tax situation. Once general financing arrangements have been selected, a screening analysis can quickly determine if the solar investment is worthy of detailed study.

Williams, T.A.; Cole, R.J.; Brown, D.R.; Dirks, J.A.; Edelhertz, H.; Holmlund, I.; Malhotra, S.; Smith, S.A.; Sommers, P.; Willke, T.L.

1983-05-01T23:59:59.000Z

487

Trajectory Design and Implementation for Multiple Autonomous Underwater Vehicles Based on Ocean Model Predictions  

E-Print Network (OSTI)

for Multiple Autonomous Underwater Vehicles Based on OceanAUVs) • Autonomous Underwater Vehicles Evolving ocean

2009-01-01T23:59:59.000Z

488

Thermal conductivity Measurements of Kaolite  

Science Conference Proceedings (OSTI)

Testing was performed to determine the thermal conductivity of Kaolite 1600, which primarily consists of Portland cement and vermiculite. The material was made by Thermal Ceramics for refractory applications. Its combination of light weight, low density, low cost, and noncombustibility made it an attractive alternative to the materials currently used in ES-2 container for radioactive materials. Mechanical properties and energy absorption tests of the Kaolite have been conducted at the Y-12 complex. Heat transfer is also an important factor for the application of the material. The Kaolite samples are porous and trap moisture after extended storage. Thermal conductivity changes as a function of moisture content below 100 C. Thermal conductivity of the Kaolite at high temperatures (up to 700 C) are not available in the literature. There are no standard thermal conductivity values for Kaolite because each sample is somewhat different. Therefore, it is necessary to measure thermal conductivity of each type of Kaolite. Thermal conductivity measurements will help the modeling and calculation of temperatures of the ES-2 containers. This report focuses on the thermal conductivity testing effort at ORNL.

Wang, H

2003-02-21T23:59:59.000Z

489

Ocean Energy Projects Developing On and Off America's Shores | Department  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Ocean Energy Projects Developing On and Off America's Shores Ocean Energy Projects Developing On and Off America's Shores Ocean Energy Projects Developing On and Off America's Shores January 22, 2013 - 1:14pm Addthis Artist rendering of Ocean Power Technologies' proposed wave park off the coast of Oregon. | Photo courtesy of Ocean Power Technologies. Artist rendering of Ocean Power Technologies' proposed wave park off the coast of Oregon. | Photo courtesy of Ocean Power Technologies. Verdant testing its tidal energy device in New York's East River. | Photo courtesy of Verdant Power. Verdant testing its tidal energy device in New York's East River. | Photo courtesy of Verdant Power. Ocean Power Technologies wave energy device. | Photo courtesy of Ocean Power Technologies. Ocean Power Technologies wave energy device. | Photo courtesy of Ocean

490

Ocean Energy Projects Developing On and Off America's Shores | Department  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Ocean Energy Projects Developing On and Off America's Shores Ocean Energy Projects Developing On and Off America's Shores Ocean Energy Projects Developing On and Off America's Shores January 22, 2013 - 1:14pm Addthis Artist rendering of Ocean Power Technologies' proposed wave park off the coast of Oregon. | Photo courtesy of Ocean Power Technologies. Artist rendering of Ocean Power Technologies' proposed wave park off the coast of Oregon. | Photo courtesy of Ocean Power Technologies. Verdant testing its tidal energy device in New York's East River. | Photo courtesy of Verdant Power. Verdant testing its tidal energy device in New York's East River. | Photo courtesy of Verdant Power. Ocean Power Technologies wave energy device. | Photo courtesy of Ocean Power Technologies. Ocean Power Technologies wave energy device. | Photo courtesy of Ocean

491

Thermal Ion Dispersion | Open Energy Information  

Open Energy Info (EERE)

Page Page Edit with form History Facebook icon Twitter icon » Thermal Ion Dispersion Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Thermal Ion Dispersion Details Activities (1) Areas (1) Regions (0) NEPA(0) Exploration Technique Information Exploration Group: Geochemical Techniques Exploration Sub Group: Geochemical Data Analysis Parent Exploration Technique: Geochemical Data Analysis Information Provided by Technique Lithology: Stratigraphic/Structural: Hydrological: Thermal: Dictionary.png Thermal Ion Dispersion: Thermal Ion Dispersion (TID) is a method used by the precious-metals industry to determine the movement of hot, mineral-bearing waters through rocks, gravels, and soils. The survey involves collection of soil samples

492

Thermally stable diamond brazing  

DOE Patents (OSTI)

A cutting element and a method for forming a cutting element is described and shown. The cutting element includes a substrate, a TSP diamond layer, a metal interlayer between the substrate and the diamond layer, and a braze joint securing the diamond layer to the substrate. The thickness of the metal interlayer is determined according to a formula. The formula takes into account the thickness and modulus of elasticity of the metal interlayer and the thickness of the TSP diamond. This prevents the use of a too thin or too thick metal interlayer. A metal interlayer that is too thin is not capable of absorbing enough energy to prevent the TSP diamond from fracturing. A metal interlayer that is too thick may allow the TSP diamond to fracture by reason of bending stress. A coating may be provided between the TSP diamond layer and the metal interlayer. This coating serves as a thermal barrier and to control residual thermal stress.

Radtke, Robert P. (Kingwood, TX)

2009-02-10T23:59:59.000Z

493

Thermal Stabilization Blend Plan  

SciTech Connect

This Blend Plan documents the feed material items that are stored in 2736-2 vaults, the 2736-ZB 638 cage, the 192C vault, and the 225 vault that will be processed through the thermal stabilization furnaces. The purpose of thermal stabilization is to heat the material to 1000 degrees Celsius to drive off all water and leave the plutonium and/or uranium as oxides. The stabilized material will be sampled to determine the Loss On Ignition (LOI) or percent water. The stabilized material must meet water content or LOI of less than 0.5% to be acceptable for storage under DOE-STD-3013-99 specifications. Out of specification material will be recycled through the furnaces until the water or LOI limits are met.

RISENMAY, H.R.

2000-05-02T23:59:59.000Z

494

Circulation of Tritium in the Pacific Ocean  

Science Conference Proceedings (OSTI)

The input of bomb tritium into the high-latitude Northern Hemisphere waters has demonstrated the spread of a tracer in three dimensions in the North Pacific Ocean. Subsurface tritium maxima in middle and low latitudes clearly show the importance ...

Rana A. Fine; Joseph L. Reid; H. Göte Östlund

1981-01-01T23:59:59.000Z

495

Ocean Radiant Heating. Part I: Optical Influences  

Science Conference Proceedings (OSTI)

Radiative transfer calculations are used to quantify the effects of physical and biological processes on variations in the transmission of solar radiation through the upper ocean. Results indicate that net irradiance at 10 cm and 5 m can vary by ...

J. Carter Ohlmann; David A. Siegel; Curtis D. Mobley

2000-08-01T23:59:59.000Z

496

Velocity Probability Density Functions for Oceanic Floats  

Science Conference Proceedings (OSTI)

Probability density functions (PDFs) of daily velocities from subsurface floats deployed in the North Atlantic and equatorial Atlantic Oceans are examined. In general, the PDFs are approximately Gaussian for small velocities, but with significant ...

Annalisa Bracco; J. H. LaCasce; Antonello Provenzale

2000-03-01T23:59:59.000Z

497

An Investigation of Explosively Deepening Oceanic Cyclones  

Science Conference Proceedings (OSTI)

The explosively deepening oceanic cyclone or “bomb,” one which has central pressure falls of 12 mb (12 h)?1 or greater, has been studied using composites constructed from North Atlantic and Pacific weather ship rawinsonde data during the period ...

Eric Rogers; Lance F. Bosart

1986-04-01T23:59:59.000Z

498

Wavelet Transforms and Ocean Current Data Analysis  

Science Conference Proceedings (OSTI)

The recently advanced approach of wavelet transforms is applied to the analysis of ocean currents. The conventional analyses of time series in the frequency domain can be readily generalized to the frequency.and time domain using wavelet ...

Paul C. Liu; Gerald S. Miller

1996-10-01T23:59:59.000Z

499

Variability of Southern Ocean Jets Near Topography  

Science Conference Proceedings (OSTI)

The interaction of jets with topography in the Southern Ocean is investigated using 19 years of altimetry data. In particular, the “jet jumping” mode of variability, by which two or more jets passing close to the same topographic feature show ...

Christopher C. Chapman; Rosemary Morrow

500

OCEAN DRILLING PROGRAM LEG 170 PRELIMINARY REPORT  

E-Print Network (OSTI)

/Canada/Chinese Taipei/Korea Consortium for Ocean Drilling Deutsche Forschungsgemeinschaft (Federal Republic of Germany Cypionka Microbiologist Institut für Chemie und Biologie Des Meeres (ICBM) Carl von Ossietzky Universität