Wrightsville Beach Research Articles

Planning and Design of a Low-Weir Section Jetty

A berm and dune project for shore and hurricane protection was recently completed at Wrightsville Beach, North Carolina. A navigation project provides for a 14-ft-deep navigation channel through Ma...

The vacuum freezing vapor compression (Zarchin) process Present status and future trends

Resume The performance of the Eilat and Wrightsville Beach demonstration plants is compared to that of the Tel-Aviv pilot plant. Following various improvements, the main compressor efficiency has been brought to about 60%. At the same time, advanced design concepts tested in the Tel-Aviv pilot plant have resulted in smaller vessels and lower driving forces. When these concepts are incorporated in a commercial plant, in combination with the improved compressor, a marked reduction in water costs should result. Future development trends envisage: Multi-compressor modules, eventually made of concrete. Direct contact, evaporative feed precoolers. Multi-stage heat removal compressors, of the flexible blade type.

Report on Demonstration Plants for Saline‐Water Conversion

The program that Congress has authorized for the Office of Saline Water (OSW) of the U.S. Department of the Interior is primarily a research and development effort whose final objective is the improvement of saline‐water conversion until it becomes an economical source of usable water. The program covers a range of activities from fundamental research to the construction and operation of million‐gallon‐per‐day demonstration plants. This article focuses on the “hardware” phases of the work, but a brief overview of other aspects of the program is provided first. The article briefly discusses four of the demonstration plants that were authorized at Freeport, Texas; San Diego, California; Webster, South Dakota; and, Roswell, New Mexico. The fifth plant, because of its experimental nature, has been redesignated a pilot plant; its construction is nearly complete at Wrightsville Beach, North Carolina.

Operation of pilot plant LTV evaporator at Wrightsville Beach, North Carolina : Badger, W. K. and Associates, Inc., United States Dept. of the Interior, Research and Development Progress Rep. No. 26, 103 p. Dec. 1959, Illus.

Operation of pilot plant LTV evaporator at Wrightsville Beach, North Carolina : Badger, W. K. and Associates, Inc., United States Dept. of the Interior, Research and Development Progress Rep. No. 26, 103 p. Dec. 1959, Illus.

Some Observations on Insects of the between Tide Zone of the North Carolina Coast

An opportunity for a brief study of the ecological condition prevailing at Wrightsville Beach near Wilmington, N. C., resulted in the determination of the ecological adaptation of several species of Homoptera which have either been entirely overlooked or so little studied that a record of our observations seems worth while. The particular and very interesting ecological situation common of course to long stretches of the Atlantic coast but admirably exhibited. at Wrightsville Beach lies in the between tide zone of the inner beach adjoining the sound. This differs from the outer beach facing the ocean in that it is not subjected to the severe wave action of the exposed coast while it gets the full benefit of the rise and fall of the tides. This results in a most luxuriant growth of tidal grasses which are fully adapted to submergence some of them at levels where the whole plant is submerged for hours at a time other species less completely submerged and merging into the zones of Uniola which for the most part appear to be above the level of the high tides although the roots and at time portions of the stems are no doubt under water.