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in subjects: "Energy Losses"

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Review of tribological sinks in six major industries

Friction and material wear occur throughout all industries and are involved in many processes within each industry. These conditions make assessing tribological activity overall in industry very complex and expensive. Therefore, a research strategy to obtain preliminary information on only the most significant industrial tribological sinks was defined. The industries examined were selected according to both the magnitude of overall energy consumption (particularly machine drive) and the known p… more

Date: September 1, 1985

Creator: Imhoff, C. H.; Brown, D. R.; Hane, G. J.; Hutchinson, R. A.; Erickson, R.; Merriman, T. et al.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

ETRANS: an energy transport system optimization code for distributed networks of solar collectors

The optimization code ETRANS was developed at the Pacific Northwest Laboratory to design and estimate the costs associated with energy transport systems for distributed fields of solar collectors. The code uses frequently cited layouts for dish and trough collectors and optimizes them on a section-by-section basis. The optimal section design is that combination of pipe diameter and insulation thickness that yields the minimum annualized system-resultant cost. Among the quantities included in th… more

Date: September 1, 1980

Creator: Barnhart, J.S.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Power excitation by the use of a rf wiggler

It is well-known that there are difficulties to obtain rf power sources of significant amount for frequencies larger than 3 GHz. Yet, rf sources in the centimeter/millimeter wavelength range would be very useful to drive, for example, high-gradient accelerating linacs for electron-positron linear colliders. We would like to propose an alternative method to produce such radiation. It makes use of a short electron bunch traveling along the axis of a waveguide which is at the same time excited by … more

Date: January 1, 1992

Creator: Ruggiero, Alessandro G.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Comprehensive energy-management program. Hybrid photovoltaic/thermal absorber. Annual report, September 1, 1980-December 31, 1981

Research work was done during the reporting period on the two-part research program: (A) to improve energy conservation through increased unit and system efficiencies, energy management, and system optimization, and (B) to develop a novel, low-cost hybrid photovoltaic/thermal absorber. Performance tests were conducted on all the boilers and chillers on campus. Several corrective measures were indicated and implemented. A detailed survey of energy use by functions and consumption/demand study ha… more

Date: December 1, 1981

Creator: Kumar, G. N.; Sellers, J. P. & Dybczak, Z. W.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Conductor qualification tests for the 30-MJ Bonneville Power Administration SMES coil

The 30-MJ energy storage coil for the Bonneville Power Administration requires a low-loss, cryostable conductor that is able to carry 4.9 kA in a field of 2.8 T and will maintain its properties over 10/sup 8/ partial discharge cycles. The multi-level cable which satisfies these requirements has been extensively tested at various stages in its development and in its final form. Tests have been performed to determine the effect of manufacturing options on ac losses, low temperature electrical res… more

Date: January 1, 1980

Creator: Schermer, R. I.; Boenig, H. J.; Henke, M.; Turner, R. D. & Schramm, R.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Measurement of energy loss in the region of relativistic rise for particle identification

The following boundary conditions are desirable for particle detectors providing momentum and mass measurement in a magnetic field. A multilayer drift chamber of the socalled ''bicycle'' type with a radius of 1.5 m is considered. The useful track length will be l/sub min/ = 1.3 m for a straight track at 90/sup 0/ to the beam axis. Two examples for possible subdivisions of this volume are chosen: (1) number of layers, n = 200 and thickness/layer, x = 6.5 mm; and (2) n = 56 and x = 23 mm. An anal… more

Date: January 1, 1977

Creator: Fischer, J.; Okuno, H. & Walenta, A.H.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Measurement of energy deposited by charged-particle beams in composite targets

We have measured the energy deposited in two types of composite targets by a number of charged-particle beams: targets made of /sup 238/U, Lucite, and polyethylene were exposed to 0.26-GeV protons and 0.33-GeV deuterons, and aluminum-Lucite composites were exposed to 0.5-GeV electrons. In addition, we measured neutrons and gamma rays emitted from solid targets of various materials (including /sup 238/U and iron) exposed to 0.26-GeV protons and 0.33-GeV deuterons. We used passive detectors (ther… more

Date: July 2, 1980

Creator: Farley, E.; Becker, J.; Crase, K.; Howe, R. & Selway, D.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Status of thermal imaging technology as applied to conservation-update 1

This document updates the 1978 report on the status of thermal imaging technology as applied to energy conservation in buildings. Thermal imaging technology is discussed in terms of airborne surveys, ground survey programs, and application needs such as standards development and lower cost equipment. Information on the various thermal imaging devices was obtained from manufacturer's standard product literature. Listings are provided of infrared projects of the DOE building diagnostics program, … more

Date: July 1, 1980

Creator: Snow, F.J.; Wood, J.T. & Barthle, R.C.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Statistical fluctuations in heavy-ion collisions

The relevance of the statistical equilibrium limit to the description of substantially relaxed degrees of freedom is discussed. Fluctuations are considered specifically in the following processes: the correlation between entrance-channel angular momentum and exit-channel kinetic energy; the sharing of the dissipated kinetic energy between the two fragments; the magnitude and the alignment of the fragment angular momentum including the effect of shell structure. It is found that statistical fluc… more

Date: February 1, 1982

Creator: Moretto, Luciano G.

Item Type: Article

Partner: UNT Libraries Government Documents Department

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Low energy components from charge transfer in neutral beams for fusion

The MFTF/TFTR injector system is studied. The LLL double charge exchange system is also studied. The stripping problem in surface-production negative ion systems producing beam energies up to 1000 keV is also investigated. (MOW)

Date: March 1, 1977

Creator: Anderson, O. A.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Manufactured Homes Acquisition Program : Heat Loss Assumptions and Calculations, Heat Loss Coefficient Tables.

This manual is intended to assist builders of manufactured homes in assessing the thermal performance of structural components used in the Manufactured Housing Acquisition Program (MAP) sponsored by the Bonneville Power Administration (BPA). U-factors for these components are calculated using the ASHRAE (1989) parallel heat loss method, with adaptations made for the construction practices found in the Pacific Northwest manufactured home industry. This report is divided into two parts. The first… more

Date: May 1, 1992

Creator: Davis, Bob & Baylon, David

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Performance and development of dE/dx counters

The performance of existing or nearly completed detectors for particle identification by using the relativistic rise of energy loss will be discussed. Detailed analysis of systematic errors leads finally to large detector systems approaching the ultimate resolution as measured in small test devices. New methods for extracting the information from the counter with the potential of better particles separation than standard dE/dx will be presented. It includes very fine sampling, delta-ray clippin… more

Date: September 1, 1980

Creator: Walenta, A. H.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

TPC magnet cryogenic system

The Time Projection Chamber (TPC) magnet at LBL and its compensation solenoids are adiabatically stable superconducting solenoid magnets. The cryogenic system developed for the TPC magnet is discussed. This system uses forced two-phase tubular cooling with the two cryogens in the system. The liquid helium and liquid nitrogen are delivered through the cooled load by forced tubular flow. The only reservoirs of liquid cryogen exist in the control dewar (for liquid helium) and the conditioner dewar… more

Date: March 1, 1980

Creator: Green, M.A.; Burns, W.A.; Taylor, J.D. & Van Slyke, H.W.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Data needs for the track structure of alpha particles and electrons in water

We have made calculations of the ionization spectra for alpha particle and electron tracks in water. We have also computed the number of ions created per micrometre of track length, the energy distribution of the secondaries, and the energy expended per ion pair created. Our aim is less toward theoretical derivations than to obtain a numerically accurate description of the track structure at all energies in a form suitable for biomedical applications. 13 references.

Date: January 1, 1983

Creator: Pagnamenta, A.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Configuring the SLC linac for injection into PEP

From time to time the normal SLC physics program is to be interrupted so that beam can be delivered to PEP. In order that the switch to PEP injection (and the switch back again) can be accomplished quickly and easily, the gun, the damping rings, the linac phase ramp, the energy profile of the linac klystrons for the scavenger bunch, and the entire positron production system are to be kept the same as in the SLC configuration. What mainly remains to be changed is the linac klystron profile for t… more

Date: December 15, 1989

Creator: Bane, K.L.F.

Item Type: Report

Partner: UNT Libraries Government Documents Department

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Studies of heavy ion reactions and transuranic nuclei. Progress report, June 1, 1976--August 31, 1977. [Summaries of research activities at University of Rochester]

Separate abstracts were prepared for the 12 papers. (JFP)

Date: August 1, 1977

Creator: Huizenga, J. R.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

High-field bipolar loss measurement apparatus

An apparatus was constructed to measure dissipation in superconducting wire in high alternating fields. The apparatus will be used to make measurements on conductors which must operate in fields up to 7.0 T and rates of field change up to 15 T/s. The magnet for this facility is wound of uninsulated, 15 strand Rutherford cable in which the strand is a 0.812 mm diameter, fully mixed matrix, Cu plus CuNi, multifilament NbTi conductor. The coil is wound in a bath cooled configuration with an overal… more

Date: January 1, 1980

Creator: Thullen, P.; Weldon, D. & Wollan, J.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Coaxial slow source: a quasi-static FRC formation concept

The electromagnetics of one of several techniques for generating FRCs in a coaxial configuration has been presented. It has been shown that the discussed design satisfies all the electromagnetic requirements for a slow source. The next major issue is the investigation of the plasma physics which will ultimately determine the viability of this concept.

Date: January 1, 1984

Creator: McKenna, K. F. & Gribble, R. F.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Simple measurement of line density

Energy line density, E/sub l/ = ..integral..(F/2)nk(T/sub e/ + T/sub i/)dA, has proved to be one of the easiest (and most critical) measurements made on the Scylla IV-P, 5-m linear theta pinch. A quantitative evaluation of end-stoppering techniques is made available by extracting the line energy containment time, tau/sub E/sub l//, from the time history of E/sub l/. To model E/sub l/(t) properly and, hence, determine the details of energy loss mechanisms (streaming and thermal conduction) requi… more

Date: February 1, 1978

Creator: Armstrong, W.T. & Siemon, R.E.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Linear magnetic fusion: summary of Seattle workshop

The linear-geometry magnetic confinement concept is among the oldest used in the study of high-temperature plasmas. However, it has generally been discounted as a suitable approach for demonstrating controlled thermonuclear fusion because rapid losses from the plasma column ends necessitate very long devices. Further, the losses and how to overcome them have not yet received parametric experimental study, nor do facilities exist with which such definitive experiments could be performed. Nonethe… more

Date: December 1, 1977

Item Type: Article

Partner: UNT Libraries Government Documents Department

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Calculated hadronic transmission through iron absorbers

The transmission of hadrons through iron absorbers is investigated for a variety of experimental configurations, and incident particle types (protons, and charged pions) and energies (0.8 GeV/c to 100 GeV). The results obtained are consistent with available experimental data.

Date: March 1, 1978

Creator: Gabriel, T. A. & Bishop, B. L.

Item Type: Report

Partner: UNT Libraries Government Documents Department

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Evaluation of soil damping techniques used in soil structure interaction analysis of a nuclear power plant

A prediction of dynamic soil properties at the site of a nuclear power plant plays a very important role in the seismic analysis of the facility. Conventional modal analysis procedures can accommodate virtually any range of equivalent elastic soil stiffness which is used to characterize the site. However, high radiation damping associated with energy dissipation in the soil half-space is difficult to accommodate in an elastic modal solution to the dynamic problem. Several methods are available … more

Date: February 24, 1982

Creator: Nelson, T.A.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Energy balance measurements for Shiva

The Lawrence Livermore Laboratory Shiva laser-target interaction facility is designed for experiments at 20 to 30 terawatts. At this power level there will be larger fluxes of neutrons, x-rays, electrons and ions than have been previously measured. The measurements of energy converted into the various reaction products is crucial both in target design and performance analysis of the actual experiment. The total energy absorbed is measured by a box calorimeter surrounding the target except for b… more

Date: October 24, 1977

Creator: Glaros, S.S.; Rupert, V.C.; Gunn, S.R.; Phillion, D.W. & Kornblum, H.N.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

D7H-test results

Data were reduced from the voltage-time relations stored in files D7H001 to D7H090 on HP1000. The I-B calibration curve is included. The data base is shown and can be used by the 9845B. The data include the quench location, Q/sub 2/ layer 1 top, Q/sub 3/ layer 1 bottom and the quench current and its normalized value with respect to short sample, I/sub c/ = 4920A at 4.4 K, I/sub c/ = 6710 A at 1.8 K. The resistance (..cap omega../cm) was calculated using the propagation time according to the vol… more

Date: July 30, 1982

Creator: Caspi, S.

Item Type: Report

Partner: UNT Libraries Government Documents Department