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Better Distillation Curve Apparatus Built
Washington (UPI) May 26, 2006 U.S. researchers say they have developed an improved method of measuring basic properties of such mixtures as gasoline and jet fuel. National Institute of Standards and Technology scientists say the new apparatus for measuring distillation properties produces significantly more detailed and accurate data needed to better understand each fuel and its sample-to-sample variation. Such data are valuable in tailoring fuels for high-performance and low emissions, as well as designing new fuels, engines and emission controls. Petroleum-based fuels, with few exceptions, are highly complex mixtures of hundreds of distinct components from light butanes to increasingly heavy oils. The new data are important both for quality control at refineries and the design of specialty high-performance fuels. NIST researchers say the current method of measuring a distillation curve in industry is subject to large uncertainties and systematic errors that make it difficult or impossible to relate the test results to thermodynamic theory used in developing modern fuels and engines.
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Russians harness star power in new battery
Moscow (AFP) May 25, 2006 Russian scientists have invented a battery that can capture energy not only from the sun, but also from the stars, the head of a research institute at the Dubna Nuclear Institute, near Moscow, said on Thursday. |
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