Overview: Steam-Water Phase Change in OTEC Systems
This paper presents an overview of the thermodynamics and the heat and mass transfer processes occurring in OTEC systems utilizing seawater as the working fluid....
Seawater Experimental Results of Direct-Contact Condensation for OC-OTEC Applications
Tests of a direct-contact condenser (DCC) for open-cycle ocean thermal energy conversion systems (OC-OTEC) have been conducted using seawater and exchanging up to 1.25 MWth...
OTEC Sea Water Systems Technology Status
A workshop was conducted in April 1988 to provide an expert critique of the fabrication and deployment options for the seawater systems (all piping required to draw the seawater) of land-based...
OTEC Seawater Pipe Cost Comparisons
Describes a material which can substantially reduce the cost of seawater pipes and two methods for building and deploying such pipes for use in land-based OTEC installations, outfall sewers,...
Noncondensable Gas Composition and Outgassing Rates in the Open-Cycle OTEC System with Direct-Contact Condensation
This paper will present the results of recent measurements of noncondensable release from an open-cycle ocean thermal energy conversion (OC-OTEC) system in a direct-contact condensation...
Optimum Removal of Noncondensable Gases for Open Cycle OTEC System
For an open cycle OTEC system the dissolved gases in warm surface seawater are evolved in the flash evaporator. Those behave as noncondensable gases in the condenser and degrade the condensing...
De-Aeration and Re-Injection of Noncondensable Gases in Open-Cycle OTEC
Non-condensable gas exchange characteristics in seawater and fresh water are compared and contrasted. The higher rate of exchange observed for these gases in seawater is incorporated in...
Asphalt in the U.S. Transportation Infrastructure
Asphalt has been the major pavement material responsible for development of the transportation infrastructure enjoyed by American citizens. This paper addresses issues to be monitored...
A Materials Study of Interleaved Bismaleimide Composites
One approach for improving damage tolerance in epoxy based composites involves interleafing of tough adhesive layers between plies of the composite prior to fabrication. Extension of this...
Resin Transfer Process Modelling: Computational & Experimental
In most cases, the resin transfer molding (RTM) researcher has a fundamental understanding of composites and possibly some mold design experience. The areas of resin flow dynamics and...
Waste Geotechnics and Geosynthetics
The geotechnology related to waste management focuses around assessing the movement of water and pollutant transport, containment of the pollutant so that it is unable to pollute the underground...
A Microplane Constitutive Model for Soils
A microplane model for the inelastic behavior of soils is presented. The microscopic constitutive equations are defined independentely for a set of microplanes covering all possible orientations,...
Construction Quality Assurance for Geomembranes
The results of and lessons learned from construction quality assurance (CQA) programs on 19 geomembrane liners are presented. The specifications are generally exceeded by comfortable margins...
High Early Strength Concrete Containing Large Quantities of Fly Ash
This paper presents results of research performed at a precast/prestressed concrete plant to identify optimum mix proportions for production of high early strength concrete with high fly...
Notch Sensitivity of Ice
Few investigators have examined closely the fracture toughness of macrocrystalline and seeded columnar freshwater ice. There has been a wide scatter in the toughness values obtained even...
Application of Waterjet Cutting for Pothole Repair
A study was conducted to determine the feasibility of utilizing high pressure waterjet cutting technology as an infrastructure maintenance tool. The influence of waterjet cutting parameters,...
Irrigation and Drainage
This proceedings consists of 70 papers presented at the National Conference on Irrigation and Drainage sponsored by the Irrigation and Drainage Division of the American Society of Civil...
Evapotranspiration and Irrigation Water Requirements
This manual,
Sludge Disposal Dallas Style
Dallas, Tex. has discovered that sludge disposal can coexist with environmental concerns. Dallas Water Utilities treats some 200 million gpd, sending the effluent from one of the two treatment...
No Feet of Clay
The methods of dealing with hazardous waste are evolving. At Superfund sites, for instance, excavation and removal was once the popular choice for treating pollutants, but stabilization...
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