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Acoustic Leak Detection for District Heating Systems

Description: An acoustic leak detection facility was completed and used to evaluate the capability of piezoelectric sensors, accelerometers, and capacitance microphones to detect and locate gas and water leaks in underground district heating and cooling (DHC) piping. Leak detection sensitivity and location capabilities for DHC systems were estimated from laboratory data and from data obtained from the underground DH system in Scranton, Pennsylvania, where acoustic background noise levels and acoustic signal… more
Date: February 1988
Creator: Kupperman, D. S. & Karvelas, D. E.
Item Type: Refine your search to only Report
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Activities and Operations of the Advanced Computing Research Facility : January 1989-January 1990

Description: This report reviews the activities and operations of the Advanced Computing Research Facility (ACRF) for the period January 1, 1989, through January 31, 1990. The ACRF is operated by the Mathematics and Computer Science Division at Argonne National Laboratory. The facility's principal objective is to foster research in parallel computing. Toward this objective, the ACRF continues to operate experimental advanced computers and to sponsor new technology transfer efforts and new research projects.
Date: February 1990
Creator: Pieper, Gail W.
Item Type: Refine your search to only Report
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Advanced Fuel Cell Development Progress Report: April-June 1983

Description: Quarterly report discussing fuel cell research and development work at Argonne National Laboratory (ANL). This report describes efforts on development of molten carbonate fuel cells directed toward seeking alternative cathode materials to NiO. Based on an investigation of the thermodynamically stable phases formed under cathode conditions with a number of transition metal oxides, synthesis of prospective alternative cathode materials and doping of these materials to promote electronic conductiv… more
Date: February 1984
Creator: Ackerman, J. P. & Pierce, Robert Dean
Item Type: Refine your search to only Report
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Advanced Fuel Cell Development Progress Report: July-September 1979

Description: Quarterly report discussing fuel cell research and development work at Argonne National Laboratory (ANL). This report describes efforts directed toward understanding and improving components of the molten carbonate fuel cells operated at temperatures near 925 K.
Date: February 1980
Creator: Pierce, R. D.; Kinoshita, K.; Kucera, G. H.; Poeppel, R. B.; Sim, J. W. & Singh, R. N.
Item Type: Refine your search to only Report
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Advanced Materials in the Manufacturing Revolution: Proceedings of the Conference Held at Argonne National Laboratory June 14, 1988

Description: A conference at Argonne National Laboratory for senior executives of small and medium-size manufacturing companies covered technical and managerial issues involved in adapting advanced materials and new manufacturing methods. Seven speakers discussed how high performance metals, alloys, ceramics, polymerics and their composites are replacing conventional mill-product materials and how these new materials are impacting manufacturing methods and products.
Date: February 1989
Creator: Nevitt, Michael V. & Peterson, Norman D.
Item Type: Refine your search to only Report
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An Alternative Library Under 4. 2 BSD UNIX on a VAX 11/780

Description: This paper describes an alternative library of elementary functions prepared for use with the standard Fortran compiler under 4.2 BSD UNIX on a VAX 11/780. The library, written in C and based on the book ''Software Manual for the Elementary Functions'' by Cody and Waite, offers improved accuracy over the standard system library, as well as additional capabilities. Listings and output from the ELEFUNT suite of test programs are included in the appendix.
Date: February 1986
Creator: Cody, William James
Item Type: Refine your search to only Report
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Analysis of Heat-Pipe Absorbers in Evacuated-Tube Solar Collectors

Description: Heat transfer in evacuated-tube solar collectors with heat-pipe absorbers is compared with that for similar collectors with flow-through absorbers. In systems that produce hot water or other heated fluids, the heat-pipe absorber suffers a heat transfer penalty compared with the flow-through absorber, but in many cases the penalty can be minimized by proper design at the heat-pipe condenser and system manifold. The heat transfer penalty decreases with decreasing collector heat loss coefficient, … more
Date: February 1986
Creator: Hull, John R.; Schertz, William W. & Allen, John W.
Item Type: Refine your search to only Report
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Analytical Investigation of Certain Aspects of LMFBR Subassembly-Failure Propagation

Description: An analytical investigation of certain problems in the area of subassembly-to-subassembly failure propagation in LMFBR's is described. Existing analyses of the response of the adjacent subassembly duct to mechanical loads are reviewed and summarized, and major uncertainties are identified. Additional analyses of the response of the adjacent subassembly to certain thermal loads are presented in two parts. In the first part, the effect of an external heat flux on duct melting and thermal stresses… more
Date: February 1976
Creator: Marr, William W.; Wang, P. Y.; Misra, B.; Padilla, A. & Crawford, R. M.
Item Type: Refine your search to only Report
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The Application of Neutron-Activation Analysis to the Determination of Leach Rates of Simulated Nuclear-Waste Forms

Description: The application of neutron activation analysis to the determination of element release from simulated nuclear waste forms during leaching is described for several different glasses. Potential neutron irradiation effects are discussed, and it is shown, by a series of leach tests on activated and non-activated glass samples, that neutron irradiation has no discernible effect on the release of silicon and cesium during leaching. The radioisotopes best suited for analysis with this method and their… more
Date: February 1982
Creator: Bates, J. K.; Jardine, L. J.; Flynn, K. & Steindler, M. J.
Item Type: Refine your search to only Report
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Argonne Solar Energy Program Annual Report: 1978

Description: Annual report of the Solar Energy Program describing work in solar energy collection, heating and cooling, thermal energy storage, ocean thermal energy conversion, photovoltaics, satellite power systems, bioconversion, central receiver solar thermal power, and wind energy conversion.
Date: February 1979
Creator: Argonne National Laboratory
Item Type: Refine your search to only Report
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ATLAS: a Proposal for a Precision Heavy Ion Accelerator at Argonne National Laboratory

Description: The objective of the proposed Argonne Tandem-Linac Accelerator System (ATLAS) is to provide precision beams of heavy ions for nuclear physics research in the region of projectile energies comparable to nuclear binding energies (5-25 MeV/A). By using the demonstrated potential of superconducting radiofrequency technology, beams of exceptional quality and flexibility can be obtained. The system is designed to provide beams with tandem-like energy resolution and ease of energy variation, the energ… more
Date: February 1978
Creator: Bollinger, L. M.
Item Type: Refine your search to only Report
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Beyond "'Speedup": Performance Analysis of Parallel Programs

Description: This paper addresses the problem of measuring and analyzing the performance of fine-grained parallel programs running on shared-memory multiprocessors. Such processors use locking (either directly in the application program, or indirectly in a subroutine library or the operating system) to serialize accesses to global variables. Given sufficiently high rates of locking, the chief factor preventing linear speedup (besides lack of adequate inherent parallelism in the application) is lock contenti… more
Date: February 1987
Creator: Dritz, Kenneth W. & Boyle, James M.
Item Type: Refine your search to only Report
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Branching Fraction in the Radioactive Decay of ⁸⁵mKr

Description: The branching fraction in the decay of the fission product ⁸⁵m-krypton⁸⁵m to the ground state ⁸⁵krypton (10.75 y) was measured relative to the total decay to both ⁸⁵krypton and ⁸⁵Rb. Samples of uranium-235 were highly irradiated in a high-flux reactor and dissolved. ⁸⁵Rb was measured by isotope-dilution mass spectrometry, and the ⁸⁵krypton was counted in GM tubes the counting efficiencies of which were calibrated with a standardized ⁸⁵krypton gas of known disintegration rate. The branching frac… more
Date: February 1980
Creator: Jaffey, A. H.; Steinberg, E. P.; Gindler, J. E.; Gray, J.; Horwitz, E. P.; Hughes, J. P. et al.
Item Type: Refine your search to only Report
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Canonicalization and Demodulation

Description: Mechanisms that were developed for the Argonne National Laboratory - Northern Illinois University theorem proving system are discussed. By defining special input clauses and demodulators, it is possible to simulate mathematical processes such as canonicalization of polynomials with no special programming. The mechanisms presented resulted from a study of the X³ = X problem in ring theory. The use of the mechanisms allowed this problem to the solved for the first time by the automated theorem pr… more
Date: February 1981
Creator: Veroff, Robert L.
Item Type: Refine your search to only Report
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Chaotic Vibrations of Nonlinearly Supported Tubes in Crossflow

Description: By means of the unsteady-flow theory and a bilinear mathematical model, a theoretical study is presented for chaotic vibrations associated with the fluid-elastic instability of nonlinearly supported tubes in a crossflow. Effective tools, including phase portraits, power spectral density, Poincare maps, Lyapunov exponent, fractal dimension, and bifurcation diagrams, are utilized to distinguish periodic and chaotic motions when the tubes vibrate in the instability region. The results show periodi… more
Date: February 1992
Creator: Cai, Y. & Chen, Shoei-Sheng
Item Type: Refine your search to only Report
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Characteristics of the 7-GeV Advanced Photon Source : a Guide for Users

Description: In this document we present the characteristics of the electromagnetic radiation from various types of sources on the 7-GeV Advanced Photon Source (APS) storage ring. The sources include bending magnets, undulators, and wigglers. The characteristics are compared with those of other synchrotron sources when operated at their design specifications. The influence of positron beam size on the on-axis brilliance is discussed, along with the power distribution from these sources. The goal of this doc… more
Date: February 1988
Creator: Shenoy, G. K.; Viccaro, P. J. & Mills, Dennis M.
Item Type: Refine your search to only Report
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Chemical Technology Division Annual Technical Report for 1984

Description: Report on studies of advanced batteries, aqueous batteries, advanced fuel cells, coal utilization, methodologies for recovery of energy from municipal waste, solid and liquid desiccants, nuclear technology related to waste management, and physical chemistry of selected materials in environments simulating those of fission, fusion, and other energy systems.
Date: February 1985
Creator: Argonne National Laboratory. Chemical Technology Division.
Item Type: Refine your search to only Report
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COMMIX-PPC: A Three-Dimensional Transient Multicomponent Computer Program for Analyzing Performance of Power Plant Condensers, Volume 1: Equations and Numerics

Description: Report on the COMMIX-PPC computer program, designed to evaluate the thermal performance of power plant condensers. This first volume "describes in detail the basic equations, formulation, solution procedures, and models for auxiliary phenomena" (p. iv).
Date: February 1993
Creator: Chien, T. H.; Domanus, H. M. & Sha, William T.
Item Type: Refine your search to only Report
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Comparison of Testing Methods for Latent-Heat-Storage Devices

Description: ASHRAE Standard 94-77, Method of Testing Thermal Storage Devices Based on Thermal Performance, was developed to allow manufacturers of thermal energy storage devices to compare their products in a meaningful way. When Standard 94-77 was used for thermal energy storage products based on latent heat storage, the Standard was found to be inadequate for comparison of these devices. Standard Project Committee SPC 94.1 was established to devise a Standard that would be adequate for comparing latent h… more
Date: February 1983
Creator: Cole, Roger Lynn; Hull, J. R.; Lwin, Y. & Cha, Y. S.
Item Type: Refine your search to only Report
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Cryogenic Distillation: a Fuel Enrichment System for Near-Term Tokamak-Type D-T Fusion Reactors

Description: The successful operation and economic viability of deuterium-tritium- (D-T-) fueled tokamak-type commercial power fusion reactors will depend to a large extent on the development of reliable tritium-containment and fuel-recycle systems. Of the many operating steps in the fuel recycle scheme, separation or enrichment of the isotropic species of hydrogen by cryogenic distillation is one of the most important. A parametric investigation was carried out to study the effects of the various operating… more
Date: February 1980
Creator: Misra, Balabhadra & Davis, J. F.
Item Type: Refine your search to only Report
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Decontamination and Decommissioning of the Argonne National Laboratory Building 350 Plutonium Fabrication Facility : Final Report

Description: In 1973, Argonne National Laboratory began consolidating and upgrading its plutonium-handling operations with the result that the research fuel-fabrication facility located in Building 350 was shut down and declared surplus. Sixteen of the twenty-three gloveboxes which comprised the system were disassembled and relocated for reuse or placed into controlled storage during 1974 but, due to funding constraints, full-scale decommissioning did not start until 1978. Since that time the fourteen remai… more
Date: February 1985
Creator: Kline, W. H.; Moe, H. J. & Lahey, T. J.
Item Type: Refine your search to only Report
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