Showing papers by "United States Department of Energy published in 1976"
TL;DR: Methods for combining process analysis with input-output analysis enables the analyst to focus data acquisition effects cost-effectively, and to achieve down to some minimum degree a specified accuracy in the results.
535 citations
TL;DR: In this article, the authors used a General Electric and a Pollak condensation nucleus counter to measure the aerosol penetration through the stages of a set of portable diffusion batteries in series and found that the fraction of a given size passing through each battery stage was consistent with the penetration calculated from molecular diffusion theory for that size.
Abstract: The diffusion battery, an assembly of circular tubes or rectangular channels, is one of the best devices available for measuring the size and size distribution of submicron aerosols in the diameter range 0.002 to 0.2 µ m. The performance of these batteries is known from molecular diffusion theory, but until now has not been checked experimentally in this size range because of the lack of the necessary monodisperse aerosols. Experimental measurements on singly charged monodisperse aerosols from 0.01 µm to 0.1 µ m are described using a General Electric and a Pollak condensation nucleus counter to measure the aerosol penetration through the stages of a set of portable diffusion batteries in series. Particle sizes in the range tested could be selected at will by adjusting the voltage of an electric mobility classifier. The fraction of aerosol of a given size passing through each battery stage was found to agree closely with the penetration calculated from molecular diffusion theory for that size. This shows t...
41 citations
Patent•
28 Jun 1976TL;DR: In this article, it was shown that voids which occur during fast neutron irradiation can be controlled by small but effective additions of titanium and silicon, particularly in austenitic stainless steels.
Abstract: The present invention is based on the discovery that radiation-induced voids which occur during fast neutron irradiation can be controlled by small but effective additions of titanium and silicon. The void-suppressing effect of these metals in combination is demonstrated and particularly apparent in austenitic stainless steels.
22 citations
01 Sep 1976
TL;DR: In this paper, a method for solvent analysis of coal-derived liquids is described. But the method is used to determine the benzene insoluble (unreacted or partially reacted coal), benzene soluble-pentane insolvable (asphaltenes), and benzene solvable (oils) fractions of coal derived liquids.
Abstract: The details are presented of the method used for the solvent analysis of coal-derived liquids. The method is used to determine the benzene insoluble (unreacted or partially reacted coal), the benzene soluble-pentane insoluble (asphaltenes), and the benzene soluble-pentane soluble (oils) fractions of coal-derived liquids. Since the procedure described uses benzene and n-pentane as solvents to analyze coal-derived liquids, safety precautions must be observed carefully. Strict adherence to the described procedure is necessary to insure that the conditions of solvent treatment are uniform and to obtain the desired degree of precision.
18 citations
Patent•
31 Aug 1976TL;DR: In this paper, an ultrasonic transducer was used to remove impurities from the surfaces of liquid dip seals and/or wetting the metal surfaces of the dip seal in nuclear components.
Abstract: A system for removing impurities from the surfaces of liquid dip seals andor wetting the metal surfaces of liquid dip seals in nuclear components. The system comprises an ultrasonic transducer that transmits ultrasonic vibrations along an ultrasonic probe to the metal and liquid surfaces of the dip seal thereby loosening and removing those impurities.
17 citations
Patent•
06 Oct 1976TL;DR: In this article, a vertical pump with bottom discharge having a free floating check valve in the outlet plenum of the pump is described. But this valve is not suitable for the case of a large number of cylinders.
Abstract: A vertical pump with a bottom discharge having a free floating check valveisposed in the outlet plenum thereof. The free floating check valve comprises a spherical member with a hemispherical cage-like member attached thereto which is capable of allowing forward or reverse flow under appropriate conditions while preventing reverse flow under inappropriate conditions.
2 citations
2 citations
Patent•
21 Dec 1976TL;DR: In this paper, coal is fluorinated by contact with fluorine gas at low pressure, and when the reaction rate has slowed, the pressure is slowly increased until fluorination is complete, forming a solid fluorinated coal of approximate composition CF1.55 H0.15.
Abstract: Coal is fluorinated by contact with fluorine gas at low pressure. After pial fluorination, when the reaction rate has slowed, the pressure is slowly increased until fluorination is complete, forming a solid fluorinated coal of approximate composition CF1.55 H0.15. The fluorinated coal and a solid distillate resulting from vacuum pyrolysis of the fluorinated coal are useful as an internal standard for mass spectrometric unit mass assignments from about 100 to over 1500.
1 citations