Density of Heavy Water
THE density of heavy water was accurately determiner oy Stokland, Ronaess and Tronstad1 rature range 10–27°. Measurements fed to 50° by Chang and Chien2, and later by Wirtz3. Recently, we have further extended the measurement up to the boiling point of heavy water.
Vereinfachte Schwimmermethode zur Bestimmung des D2O‐Gehaltes in Wasser
A simplified and tested modification of the well known float method for the isotopic analysis of water is described. It is shown that an accuracy better than 0.01% D-content is easily obtained by means of very simple equipment for the purification of the water samples and for the determination of the floating temperatures. Numerical tables for the calculation of the isotopic composition are given, and the corrections which have to be applied are dlscussed. Curves of constant density provide the fastest method for the routine evaluation of the D- content from floating temperatures. (auth)
Thermal properties of the Florida Current as related to Ocean Thermal Energy Conversion (OTEC)
The thermal properties of the Florida Current are presented and analyzed for the available ocean thermal energy. For a cold water intake depth equal to or greater than 600 m, potential sites for Ocean Thermal Energy Conversion (OTEC) power plants appear to exist in the Straits of Florida and, to a lesser extent, off the coasts of Georgia and South Carolina. The maximum thermal differences occur on the continental shelf because of the geostrophic motion of the Gulf Stream. An estimate of the total available ocean thermal energy from the Florida Current, delivered in the form of electricity, is 3.5 × 1012 kWh yr−1. For a cold water suction depth of 600 m or more, seasonal variability in the ocean thermal resource is approx. ±35 per cent of average annual output.