7,889 Matching Results

Search Results

Advanced search parameters have been applied.

Tables of Industrial Gas Container Contents and Density for Oxygen, Argon, Nitrogen, Helium, and Hydrogen

Description: Abstract: Custody transfer tables are presented for oxygen, argon, nitrogen, helium, and hydrogen. The tables are based on standard reference data previously compiled by the National Bureau of Standards. Two sets of tables are provided for each fluid. Tables in engineering units cover the range -40 to 130*F with pressures from 100 to 10,000 prig. Tables in SI units (density versus pressure and temperature) cover the range 200 to 370 K with pressures from 0.5 to 70 MPa. The tables in engineering units are designed to provide a means of determining the volume of gas at standard conditions contained in a tank given the volume of the tank and the pressure and temperature of the gas within the tank. The publication also includes four examples of use of the tables in calculating tank quantities.
Date: June 1985
Creator: Younglove, Ben A. & Olien, Neil A.
Partner: UNT Libraries Government Documents Department

Provisional Thermodynamic Functions for Para-Hydrogen

Description: The need for thermodynamic functions of para hydrogen, especially in compressed liquid and dense fluid states, prompts the tabulation of these provisional properties, computed by approximate methods utilizing the new PVT data of these reports. Computation and preparation of the tables is discussed under the following: Approximate Computational Methods; Correlation Methods; Discussion of Errors; and Tables of Functions.
Date: December 1961
Creator: Roder, Hans M.
Partner: UNT Libraries Government Documents Department

An analytical study of turbulent and molecular mixing in rocket combustion

Description: From Introduction: "The many physical processes which occur simultaneously in rocket combustion make the entire process extremely complex (ref. 1). The combustion chamber length required for evaporation of liquid-propellant sprays has already been studied (refs. 2, 3, and 4)."
Date: September 1958
Creator: Bittker, David A.
Partner: UNT Libraries Government Documents Department

technical report and journal articles

Description: Objective: This project seeks to improve the application of noble gas isotope studies to multiphase fluid processes in the Earth's crust by (1) identifying the important noble gas carrier phases in sediments to address the processes that have led to the observed enrichment and depletion patterns in sedimentary rocks and fluids, (2) examine the mechanisms by which such noble gas patterns are acquired, trapped and subsequently released to mobile crustal fluids, and (3) evaluate the time and length scales for the transport of noble gas components, such as radiogenic 4He, through the continental crust.. Project Description: Sedimentary rocks and oil field gases typically are enriched in heavy noble gases: Xe/Ar ratios of ~10-10,000 times the ratio in air have been observed that cannot be explained by adsorption hypotheses. Laboratory experiments designed to isolate sedimentary phases for noble gas analysis are conducted to identify the carrier phase(s). It has been observed that radiogenic 4He accumulates in confined aquifer waters at rates that exceed the rate of local production and approaching the whole crustal production rate. A literature evaluation of 4He, 3He crustal fluxes is being conducted to evaluate crustal scale mass transport in terms of the rate, mechanisms, temporal and spatial variability and the role played by tectonic processes. Results: The laboratory study has concentrated on noble gas abundances in a variety of sedimentary silica samples. We have found that, in general, samples of inorganic silica have noble gas abundances that are consistent with occlusion of air-saturated water in fluid inclusions and lack requisite enrichment/depletion factors needed to explain the noble gas inventory in oil field fluids. However, numerous replicate analyses of noble gases extracted from silica spicules from live sponges (Calyxnicaeensis) show significantly enriched Ar, Kr, and Xe concentrations ([iNg]sample/[iNg]asw > 1), but with very little if any mass dependence ...
Date: March 25, 2011
Creator: Torgerson, Thomas & Kennedy, B. M.
Partner: UNT Libraries Government Documents Department

Electron Optical Studies of Low-Pressure Gases

Description: From Abstract: "This document is the final report of research carried on in the Electron Physics Section of the National Bureau of Standards during the period from February 1, 1955 to March 1962 in developing an electron optical method for the visualization of low-pressure gas flow."
Date: August 16, 1963
Creator: Marton, L.; Schubert, David C. & Mielczarek, S. R.
Partner: UNT Libraries Government Documents Department

Mechanical Concentration of Gases

Description: From Introduction: "This bulletin deals with a new mechanical means of attacking the problem of separation. Although it is improbable that any one type of separation could hope to find universal application, the method described is to be regarded as an alternative to conventional means that has attractive possibilities in certain instances."
Date: 1940
Creator: Maier, C. G.
Partner: UNT Libraries Government Documents Department

Gases that Occur in Metal Mines

Description: From Conclusions: "Many gases are harmful to man are widely prevalent in metal mines. They influence the safety, health and efficiency of miners; workers and officials should therefore become much more familiar with there occurrence, detection, and handling. The principal means of combating these gases are proper ventilation of all parts of a mine and the adoption of measures to minimize fire hazards and to control a mine fire promptly should it occur."
Date: 1931
Creator: Harrington, D. & Denny, E. H.
Partner: UNT Libraries Government Documents Department

Analyses of Complex Mixtures of Gases: Application to Control and Extinguish Fires and to Prevent Explosions in Mines, Tunnels, and Hazardous Industrial Processes

Description: From Purpose of Report: "The purpose of the report is to point out what the mine-management official, the safety engineer, and the chemist, can do to utilize analyses of complex gas mixtures as basis for safe procedure to (1) control and extinguish fires in mines, tunnels, and individual plants and (2) prevent explosions when dealing with explosive mixtures and sources of ignition. The report is designed to meet the needs of those desiring to utilize analyses of complex-gas mixtures for the above-mentioned purpose."
Date: 1948
Creator: Ash, S. H. & Felegy, E. W.
Partner: UNT Libraries Government Documents Department

Investigation of Toxic Gases from Mexican and other High-Sulphur Petroleums and Products: Report by the Bureau of Mines, Department of the Interior, to the American Petroleum Institute

Description: From Scope of the Work and Findings: "The work was divided into two parts, namely, field work and laboratory investigations. The most interesting and important of the laboratory investigations. The most interesting and important of the laboratory findings were: (1) The presence of hydrogen sulphide (H2S) in the gases and vapors from light Mexican crude; (2) the extreme toxicity of H2S; (3) the absence of arsine, stibine, phosgene, hydrocyanic acid, and other toxic substances; (4) treatment recommended for poisoning by H2S; (5) use and limitations of oxygen breathing apparatus, hose masks, and gas masks."
Date: 1923
Creator: Sayres, R. R.; Smith, N. A. C.; Fieldner, A. C.; Mitchell, C. W.; Jones, G. W.; Yant, W. P. et al.
Partner: UNT Libraries Government Documents Department

Rock-Strata Gases of the Cripple Creek District, Colorado and Their Effect on Mining

Description: From Introduction: "The presence in the Cripple Creek district, Colo., of irrespirable gas or gases, generally known to consist mainly of nitrogen and carbon dioxide, has been recognized by members of the mining industry in that region almost since underground mining was begun there; the occurrence origin, and possible control of these gases have been discussed in several articles cited at various places in this report. Similar gases have also been studied in other metal-mining districts, as later discussed."
Date: 1930
Creator: Denney, E. H.; Marshall, K. L.; Fieldner, A. C.; Emery, A. H.; Yant, W. P. & Selvig, W. A.
Partner: UNT Libraries Government Documents Department

The Facility 350 Helium-Atmosphere System

Description: Report describing the helium atmosphere system in the Argonne National Laboratory's Facility 350. The atmosphere's ability to remove moisture, oxygen, and other impurities, how the atmosphere is purified, and experimental data regarding the use of activated carbon to absorb oxygen from helium are discussed.
Date: December 1962
Creator: Mayfield, R. M.; Tope, W. G. & Shuck, A. B.
Partner: UNT Libraries Government Documents Department

The Occurrence of Gases in Coals

Description: Report issued by the U.S. Bureau of Mines on the different types of gases that are present in coal. Theories behind why these gases occur in coal are presented. This report includes tables and graphs.
Date: June 1934
Creator: Selden, R. F.
Partner: UNT Libraries Government Documents Department

Compressibilities of gases

Description: Reproduction of thirteen graphs for computing compressibilities of various gases and for computing the volumes delivered from cylinders containing various gases.
Date: November 21, 1925
Creator: Pickering, Samuel Fisher
Partner: UNT Libraries Government Documents Department

Environmental Quality; Greenhouse Gas Emissions

Description: Establishes as state policy statewide greenhouse gas emissions limits at or below the statewide greenhouse gas emissions levels in 1990 to be achieved by January 1, 2020. Establishes greenhouse gas emissions reduction task force to prepare a work plan and regulatory scheme to achieve the statewide greenhouse gas emissions limits.
Date: 2007
Creator: House of Representatives
Partner: UNT Libraries

Occurrence of Explosive Gases in Coal Mines

Description: From Introduction: "This report presents the results of an investigation begun by the Government in the summer of 1907, the investigation being started under the immediate supervision of Dr. J. A Holmes and continued under him as director after it was transferred to the Bureau of Mines in 1910, the field studies being completed in the spring of 1912. The purpose of the investigation was to obtain information on the origin of the inflammable gases in coal and the conditions under which they occur."
Date: 1915
Creator: Darton, N. H.
Partner: UNT Libraries Government Documents Department

Apparatus and Methods for the Sampling and Analysis of Furnace Gases

Description: From Introduction: "It is the purpose of this paper to describe some apparatus and methods which have proved satisfactory to those engaged in the chemical work of the investigations mentioned. While these methods and apparatus have been designed more particularly with regard to analysis of furnace gases, their use is by no means limited to that purpose."
Date: 1911
Creator: Frazer, J. C. W. & Hoffman, E. J.
Partner: UNT Libraries Government Documents Department

Sampling and Analyzing Flue Gases

Description: From Introduction: "The material presented in this report is arranged in two parts. The first part contains the description of the apparatus and the methods used in sampling and analyzing flue gases. The second part gives experimental results obtained with the different methods of sampling and collecting of flue gas that are recommended in the first part of the report."
Date: 1915
Creator: Kreisinger, Henry & Ovitz, F. K.
Partner: UNT Libraries Government Documents Department

A Study of Refractories Service Conditions in Boiler Furnaces

Description: From Scope of Report: "The findings of the preliminary survey are first briefly presented; these are followed by a general description of the furnaces and fuels investigated. A chapter follows on each of the four conditions of service studied: (1) The temperature and composition of the furnace gases, (2) the velocity of the furnace gases, (3) the temperature of the refractories, and (4) the composition and characteristics of boiler-furnace slags. In each chapter the significance of the condition of service, the factors that govern it, the method of investigation, representative data from the installations, and a comparative summary are given."
Date: 1931
Creator: Sherman, Ralph A.
Partner: UNT Libraries Government Documents Department

War Gas Investigations: Advance Chapter from Bulletin 178, War Work of the Bureau of Mines

Description: From General Statement: "Beginning with an investigation to develop the best type of gas mask, the scope of the work extended until it included researches relating to a wide range of devices, such as different types of poisonous and irritating gases and smokes, smoke screens, gas shells and gas bombs, signal lights, and incendiary bombs. When the results obtained through this research were to be applied by the War Department, the Director of the Bureau of Mines cooperated in the selection of men to have charge of manufacture or further development, recommending chemists who subsequently received commissions in the Army. Perhaps the greatest result of the research work has been the demonstration of the value of the services that the chemist and chemical engineer can render in time of need and the recognition of chemical investigations as a necessary function of the Government."
Date: 1919
Creator: Manning, Van. H.
Partner: UNT Libraries Government Documents Department