NDLI: The Direct Use of Ocean Thermal Gradients for Freshwater Production

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Front cover and table of contents

The Role of Science and Technology in Ocean Management

Satellite Oceanic Observations for the 80's

Acoustics and Properties of the Ocean

Oceanographic Instruments and Deployment Systems for Polar Seas

Automatic Profiling Ocean Data Acquisition System (APODAS)

In Situ Fluorometer/CTD System

The Detection of Medium Scale Conductivity Anomalies in the Ocean

An Underway Towed Pumping System for Trace Metal Analysis

The Undulating Oceanographic Recorder Mark 2: A New Ship-of-Industry Ocean Monitoring Instrument

A Thermometer with a Time Constant of about 1.5-2 Milliseconds: Its Properties and Results of its Application on Cruises

Deep Ocean Mining: 1980 Status Report

Commercial Profitability of Offshore Sand and Gravel Mining in Southern California: An Analysis of New Entries

Ocean Thermal Energy Conversion: Resource and Environmental Issues

The Direct Use of Ocean Thermal Gradients for Freshwater Production

Wave Power Extraction from a Transient Heaving Cylinder

Managing Industrial Spin-offs from Ocean Development: The Canadian Experience

The Development of a New U.K. Wave Height Measuring Buoy

Digital Simulation of Narrow-Band Ocean Systems

Development of a Simple Transducer for Measuring Forces on Existing Structures at Sea

Predicting Surf Zone Conditions from an Offshore Buoy System

Residual Motion Generated by Tides in the St. Lawrence Estuary

Ice Free Berths for Loading Ships in the Arctic

Experimental Study of a Recirculating Water Jet ice Drill

Melt Season Changes in Arctic Ice

An Upward-Looking Sonar System to Profile Ice Keels for One Year

Sound Propagation in a Shallow Water Region Overlying a Viscoelastic Halfspace

An Estimation of a Simulated Viscoelastic Subbottom Parameter Using Statistical Digital Signal Processing Methods

Reflector Extraction from Marine Shallow Seismic Broadband Data

Computer Analysis of Acoustical Responses in a Liquid Layer Overlying a Multilayered Viscoelastic Subbottom

Multiple Reflections of Subsurface Layered Media

Gravity-Wave Induced Pressure Fluctuations in the Deep Ocean

Source Heave Compensation for High Resolution Marine Seismic Profiling

A Survey Spar System for Precision Offshore Seafloor Surveys

Navigation, Control, and Parameter Identification of an Unmanned Submersible

Vessel Traffic Safety in Puget Sound

A Multi-Threat Avoidance Maneuver Generator

Collision Avoidance Systems--The Evolution Continues

Miniature Acoustical Sensor for Fast In Situ Measurements of Currents and Simultaneous Density Fluctuations in the Same Water Sample

Boundary Layer Measurement System

Geomagnetic Induction to Measure Strong Nearshore Flow Velocities

A Laser Velocimeter for Use in Coastal Boundary Layer Studies

Horizontal Response of the NBIS Acoustic Current Meter

High-Precision Instrumentation System for Sea-Bed Pressure Measurements in Muddy Sediments

Optimized Design and Predicted Performance of a Deep Ocean 50m Piston Coring System

A Triaxial Coil Receiver for Study of Subsurface Electromagnetic Propogation

Video Information Control Cable Burying System

The Oil Pipeline "Spoolpiece" Problem

Measurement of the Transverse Movement of Sea Floor Gas Pipelines

A High Data Rate Underwater Acoustic Telemetry System

High Data-Rate Recordings and Processing Systems for Hydrophone Arrays

Split-beam Towed Sonar for Ocean Acoustic Measurements

Mini-sonar---A Miniaturized Sector Scanning Sonar

A Precision TVG for Echo Ranging Sonar

Development of the Auguste Piccard Manipulator Corer

Recovery Operations Utilizing a Remotely Controlled Vehicle/Work System

The Advent of the Autonomous Submarine Work Base

Design Features and Test Results of an Unmanned Free Swimming Submersible

Communications for a Tethered Underwater Submersible

The Deep Submergence Rescue Vehicle (DSRV) Ship-of-Opportunity Towing Study

Design and Initial Testing of a Three-Axis Current Meter

Some Comparative Studies on Electromagnetic Sensor Heads in Laminar and Near-Turbulent Flows in a Towing Tank

Calibration of a Marine Boundary Layer Flow Measuring System

Performance Evaluation in the Field

Backscatter Laser Velocimeter for Energetic Deep-Sea Flows: Performance Study in Particulate Dense Water

A Marine Forecaster's View of Present Marine Weather Data Technology

A Maritime U-V-W Measuring System

The ANBESS Test Payload

Development of Drifting Buoy Systems for Oceanographic and Meteorological Applications

An Evaluation of Methods for Indirectly Measuring the Mean Acoustic Scattering Cross Section of Fish

Initial Results from a Portable Dual-Beam Sounder for In Situ Measurements of Target Strength of Fish

Application of Stationary Hydroacoustic Systems for Studies of Fish Abundance and Behavior

Size and Angular Location Estimates of Fish Schools Using Spatial Correlation

A Microprocessor Based Echo Integration System for Fisheries Research

Texas, 1979-Experience with Marco Filterbelt Skimmers on IXTOC 1 & Burmah Agate Crude Oil Spills

National Response Capability to Oil Spills: A Systems Approach

An Experimental Evaluation of Oil Spill Combustion Promotors

Feasibility of Water Spray Barriers as Fireproof Oil Slick Containment Devices

Developmental VHF/UHF Radio Communications Techniques for Submersible Systems

Analysis of the Performance of a Pressure-Tolerant Light-Emitting Diode/Fiber Optic Cable Interface

Undersea Television Viewing in the 1980's

A Report on Two Fiber-Optic-Tethered Underwater Vehicles

Fiber Optic Digital Telemetry for Deep Sea Submersibles

Small Stirling-cycle Power Sources in Marine Applications

CABCY: A New Fuel System For Ships

Measurement of Thermal Resistance Due to Fouling on Heat Exchanger Surfaces

Reduction to Practice of a Towed Ocean Profiling System

Subseabed Radioactive Waste Disposal Feasibility Program: Ocean Engineering Challenges for the 80's

Shipboard Environmental Protection Systems

Physical Processes and Critical Biological Areas in the Vicinity of a Proposed Petroleum Transfer Facility

Bioassay: A Computerized Approach

Density Dependence and Vulnerability of Fish to Entrapment by Offshore-Sited Cooling-Water Intakes

An Analysis of the Seasat Satellite Data Distribution System

The Seasat Low Rate Data Processing System

Goasex Observations of Seasat SAR Cross-Section Modulation from Surface Winds

Comparison of Conventionally Measured Sea Surface Temperature and Wind Speed with Data Retrieved from Satellite-borne Microwave Radiometry

Seasat Orbit Refinement for Altimetry Calibration

Experimental Scale Modeling of Large Undersea Cable Structures

The Deployment and Operational Performance of the DBI Data Buoy System in the South West Approaches to the British Isles

OCEANS '77 Conference Record

OCEAN 75 Conference

Ocean '74 - IEEE International Conference on Engineering in the Ocean Environment

Ocean 73 - IEEE International Conference on Engineering in the Ocean Environment

Ocean 72 - IEEE International Conference on Engineering in the Ocean Environment

IEEE 1971 Conference on Engineering in the Ocean Environment

1970 IEEE International Conference on Engineering in the Ocean Environment - Digest of Technical Papers

The Direct Use of Ocean Thermal Gradients for Freshwater Production

Content Provider	IEEE Xplore Digital Library
Author	Costa, S.L.
Copyright Year	1979
Description	Author affiliation: Foundation for Ocean Research, San Diego, CA, USA (Costa, S.L.)
Abstract	This is a scheme to utilize the low grade energy represented by the temperature difference between the deep and surface water of the oceans. If appropriate atmospheric and oceanic conditions prevail, this system can be used to condense fresh water directly from the atmosphere in quantities large enough to be used as a potable water source by coastal residents. Cold deep sea water is used as a heat sink for a condenser which extracts part of the atmospheric water vapor burden. The required size of the condenser is minimized by utilizing a spray chamber. Model experiments have been performed and are summarized. The basic thermodynamic constraints on the system are explored. The results of these investigations demonstrate a low cost, low technology alternative to conventional desalination plants.
Starting Page	61
Ending Page	68
File Size	799556
Page Count	8
File Format	PDF
DOI	10.1109/OCEANS.1980.1151420
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1980-09-08
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Ocean temperature Sea surface Moisture Testing Water heating Friction Spraying Costs Water resources Humans
Content Type	Text
Resource Type	Article

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