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Advanced Component Research Facility (ACRES)

Description: A detailed description of the SERI Advanced Component Research Facility (ACRES) is given. Background information explicates the facility's history, developed around the two Omnium-G parabolic dish concentrators. The Omnium-G concentrators and electrical power plant are described. The purpose and a detailed descripttion of ACRES is also given. Included is a description of the measurement capabilities, the controls, and each component of the facility.
Date: July 1, 1980
Creator: Bohn, M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Analysis of the omnium-g receiver

Description: A thermal analysis of the Omnium-G receiver is presented and the technique is shown to be generally applicable to solar thermal receivers utilizing a directly heated thermal mass. The thermal loss coefficient, including reradiation losses, is calculated and shown to agree quite well with the experimentally measured thermal loss coefficient. The rate of heat transfer to the working fluid is also analyzed and the analysis is used to show that the Omnium-G receiver is well matched to the water/ste… more
Date: March 1, 1980
Creator: Bohn, M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Performance characteristics of a commercially available, point-focus, solar power system. [7. 5 kWe peak]

Description: The performance of a commercially available solar electric power system is described in terms of instantaneous electrical power output for a given insolation and electrical energy production per day. Receiver thermal loss coefficient and concentrator optical efficiency are measured and system performance is then given with steam cycle efficiency and electrical generator efficiency as parameters. System performance is limited by a relatively low optical efficiency of 44%. For peak insolation, th… more
Date: April 1, 1979
Creator: Bohn, M.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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FRACAS: a subcode for the analysis of fuel pellet-cladding mechanical interaction

Description: This report describes FRACAS (Fuel Rod and Cladding Analysis Subcode), a computer code which performs the mechanical analysis in the FRAP fuel rod codes. At each loadstep, FRACAS obtains a complete elastic-plastic-creep solution for the stresses, strains, and displacements in the fuel rod cladding. The cladding is modeled as a thin cylindrical shell with prescribed temperature, pressures, and radial displacement of the inside surface. The displacement of the fuel pellets is assumed to be due to… more
Date: April 1, 1977
Creator: Bohn, M. P.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Heat transfer and pressure drop measurements in an air/molten salt direct-contact heat exchanger

Description: This paper presents a comparison of experimental data with a recently published model of heat exchange in irrigated packed beds. Heat transfer and pressure drop were measured in a 150 mm (ID) column with a 610-mm bed of metal Pall rings. Molten nitrate salt and preheated air were the working fluids with a salt inlet temperature of approximately 440{degree}C and air inlet temperatures of approximately 230{degree}C. A comparison between the experimental data and the heat transfer model is made on… more
Date: November 1, 1988
Creator: Bohn, M. S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Development of a solar thermal receiver for high temperature applications

Description: A thermal receiver for point focus collectors is being constructed. Its design, which is based upon experience with a commercial receiver, employs the advantages of that receiver and improves some of its features. The new receiver uses as a buffer between the cavity surface and the heat transfer fluid a thermal mass, which with a very small temperature drop penalty smooths the flux distribution to eliminate hot spots. Maximum operating temperature range was extended from 620/sup 0/C to 870/sup … more
Date: November 1, 1979
Creator: Bohn, M. & Bessler, G.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Omnium-G parabolic dish optical efficiency: a comparison of two independent measurement techniques

Description: Measurements made at SERI of the optical efficiency of the Omnium-G parabolic dish concentrator are described. Two independent techniques were used: the cold-water calorimeter method and the heat of fusion method. Results from both techniques agree quite well and indicate that the optical efficiency for a 10-cm receiver aperture is 25%. Optical efficiency measured in early 1979 was 37%, and in mid 1979 it had degraded to 21%. An optical alignment procedure is described that resulted in the incr… more
Date: October 1, 1980
Creator: Bohn, M. & Gaul, H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Experimental investigation into fast pyrolysis of biomass using an entrained-flow reactor

Description: Pyrolysis experiments were performed using 30 and 90cm entrained-flow reactors, with steam as a carrier gas and two different feedstocks - wheat straw and powdered material drived from municipal solid waste (ECO-II TM). Reactor wall temperature was varied from 700/sup 0/ to 1400/sup 0/C. Gas composition data from the ECO-II tests were comparable to previously reported data but ethylene yield appeared to vary with reactor wall temperature and residence time. The important conclusion from the whe… more
Date: February 1, 1981
Creator: Bohn, M. & Benham, C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Residential and commercial buildings data book. Second edition

Description: This Data Book updates and expands the previous Data Book originally published by the Department of Energy in October, 1984 (DOE/RL/01830/16). Energy-related information is provided under the following headings: Characteristics of Residential Buildings in the US; Characteristics of New Single Family Construction in the US; Characteristics of New Multi-Family Construction in the US; Household Appliances; Residential Sector Energy Consumption, Prices, and Expenditures; Characteristics of US Comme… more
Date: September 1, 1986
Creator: Crumb, L.W. & Bohn, A.A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Industrial Sector Technology Use Model (ISTUM): industrial energy use in the United States, 1974-2000. Volume 1: primary model documentation, Book 2, Chapters IV, V, VI, and VII

Description: The Industrial Sector Technology Use Model provides a single framework for integrating all of the information and analysis into a set of predictions of industrial energy use. Given this volume of information which must be considered, this requires a set of computerized engineering-economic models. The design of these models is the subject of Chapter IV. The environmental factors in ISTUM are developed and presented in Chapter V. Chapter VI discusses the work accomplished by DATA Resources, Inc.… more
Date: June 19, 1978
Creator: Bohn, R.E. & Herod, J.S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Industrial Sector Technology Use Model (ISTUM): industrial energy use in the United States, 1974-2000. Volume 1. Primary model documentation. Book 1: Chapters I, II, and III

Description: The model is designed to predict the commercial-market penetration of various energy technologies in the industrial sector out to the year 2000. The model represents the refinement and further development of the Industrial Sector Model developed for the Market Oriented Program Planning Study task force in 1977. The model assesses the comparative economic competitiveness of each technology and then uses these assessments to project each technology's anticipated market penetration. The introducto… more
Date: June 19, 1978
Creator: Bohn, R.E. & Herod, J.S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Industrial Sector Technology Use Model (ISTUM): industrial energy use in the United States, 1974-2000. Volume 2. Results

Description: This volume, the second of a four-volume report, presents the current status of the Industrial Sector Technology Use Model (ISTUM), an analysis and projection of the use of energy in the industrial sector, developed as a tool to develop insights on the energy future of the US. Volume 1 describes the model logic and primary data inputs of ISTUM. This volume presents the results of the initial base case run of ISTUM. Volumes III and IV discuss in detail the energy demand data inputs and technolog… more
Date: June 19, 1978
Creator: Bohn, R.E. & Herod, J.S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Determination of Fluid-Induced Loads From Strain Gages: Theory, Equations, and Error Analysis

Description: Strain gages are to be used on the LOFT piping to determine load resultants during the subcooled portion of blowdown in Loss-of-Coolant Experiments. This report discusses the configuration of strain gages to be installed. The selected configuration is shown to: be sufficient to determine the desired load resultants; provide for measurement redundancy; and provide an evaluation of the applicability of the analytical assumptions made in obtaining load resultants from the measured strains. Data re… more
Date: April 23, 1975
Creator: Bohn, M. P. & Rasmuson, D. M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Conceptual foundation of the Fokker-Planck approach to space-charge effects

Description: An rms-mismatched beam can evolve rapidly to a configuration of quasiequilibrium under the influence of space-charge forces. As sit evolves, its emittance grows and a diffuse halo forms. The beam`s distribution function accounts for all the complicated dynamics. Unfortunately, the distribution function is difficult to calculate inasmuch as the physics lies at the interface between classical mechanics and thermodynamics. This paper presents the foundation for a statistical theory of the dynamics… more
Date: July 1, 1996
Creator: Bohn, C. L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Conceptual foundation of the Fokker-Planck approach to space-charge effects

Description: An rms-mismatched beam can evolve rapidly to a configuration of quasiequilibrium under the influence of space-charge forces. As sit evolves, its emittance grows and a diffuse halo forms. The beam's distribution function accounts for all the complicated dynamics. Unfortunately, the distribution function is difficult to calculate in as much as the physics lies at the interface between classical mechanics and thermodynamics. This paper presents the foundation for a statistical theory of the dynami… more
Date: July 1, 1996
Creator: Bohn, C.L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

A program to research emittance growth in bends

Description: A research program to explore the phenomenon of emittance growth in bends due to noninertial space-charge effects has been defined and initiated. The program combines theoretical, numerical, and experimental investigations. This paper summarizes the motivation of the work and highlights CEBAF`s need for immediate results. The program`s key elements, some of which qualitatively differ from the standard approach used to investigate the production and effects of coherent synchrotron radiation in s… more
Date: December 31, 1995
Creator: Bohn, C.L.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Integrated solar receiver/biomass gasifier research

Description: Processes for producing liquid fuels from olefin-rich pyrolysis gases obtained from fast pyrolysis of biomass are being developed by J. Kuester at Arizona State University and J. Diebold at the Naval Weapons Center, China Lake, Calif. In the Diebold process the biomass, carried by steam, is blown through an entrained bed gasifier. The olefins are then separated from the rest of the reaction products and polymerized thermally to gasoline; the other gases are used as fuel for the process. The Kue… more
Date: November 1, 1979
Creator: Benham, C.; Bergeron, P.; Bessler, G. & Bohn, M.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Environment reconstruction for robot navigation

Description: The United State Department of Energy (DOE) is facing a large task in characterizing and remediating waste tanks and their contents. Because of the hazardous materials inside the waste tanks, all of the work must be done remotely. The purpose of this paper is to show how to reconstruct an enclosed environment from various scans of a Laser Range Finder (LRF). The reconstructed environment can then be used by a robot for path planning, and by an operator to monitor the progress of the waste remed… more
Date: April 1, 1994
Creator: Bohn, S. & Thornton, E.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Thin film cadmium telluride photovoltaic cells. Annual subcontract report, 23 July 1990--31 October 1991

Description: This report describes research to develop to vacuum-based growth techniques for CdTe thin-film solar cells: (1) laser-driven physical vapor deposition (LDPVD) and (2) radio-frequency (rf) sputtering. The LDPVD process was successfully used to deposit thin films of CdS, CdTe, and CdCl{sub 2}, as well as related alloys and doped semiconductor materials. The laser-driven deposition process readily permits the use of several target materials in the same vacuum chamber and, thus, complete solar cell… more
Date: April 1, 1992
Creator: Compaan, A. & Bohn, R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Automatic Control of Electric Thermal Storage (heat) Under Real-Time Pricing. Final Report

Description: Real-time pricing (RTP) can be used by electric utilities as a control signal for responsive demand-side management (DSM) programs. Electric thermal storage (ETS) systems in buildings provide the inherent flexibility needed to take advantage of variations in prices. Under RTP, optimal performance for ETS operations is achieved under market conditions where reductions in customers` costs coincide with the lowering of the cost of service for electric utilities. The RTP signal conveys the time-var… more
Date: January 1, 1995
Creator: Daryanian, B.; Tabors, R. D. & Bohn, R. E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Thermoelectric Ocean Thermal Energy Conversion

Description: A novel thermoelectric OTEC concept is proposed and compared with the ammonia closed-cycle designs. The thermoelectric OTEC is a much simpler system which uses no working fluid and therefore requires no pressure vessel, working fluid pumps, or turbogenerator. These components are replaced by power modules which are heat exchangers integrated with thermoelectric generators. The thermoelectric OTEC offers several potential advantages including: simpler and more easily mass-produced components; hi… more
Date: June 1, 1979
Creator: Jayadev, T. S.; Benson, D. K. & Bohn, M. S.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Molecular Aspects of Transport in Thin Films of Controlled Architecture

Description: Our laboratory focuses on developing spatially localized chemistries which can produce structures of controlled architecture on the supermolecular length scale -- structures which allow us to control the motion of molecular species with high spatial resolution, ultimately on nanometer length scales. Specifically, nanocapillary array membranes (NCAMs) contain an array of nanometer diameter pores connecting vertically separated microfluidic channels. NCAMs can manipulate samples with sub-femtolit… more
Date: April 16, 2009
Creator: Bohn, Paul W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Critical magnetic scattering from the Heisenberg ferromagnet EuS

Description: The paramagnetic scattering from the insulating, isotropic ferromagnet EuS is investigated at T/sub c/ along the (111) direction by means of inelastic neutron scattering. The energy width of the quasielastic scattering is proportional to q/sup z/ with z = 2.54 +- 0.10, in good agreement with the predictions of dynamical scaling theory (z = 2.5). z is, however, significantly larger than the value deduced from measurements along the (100) direction (z = 2.2). Near the zone boundary the magnetic s… more
Date: January 1, 1986
Creator: Boeni, P.; Shirane, G.; Bohn, H. G. & Zinn, W.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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