748 Matching Results

Search Results

Advanced search parameters have been applied.
in subjects: "Performance"  
Results: 1 - 24 next
open access

First order study for an iron core OH system for TNS

Description: A simple comparison has been made between an air core and an iron core ohmic heating system for a particular device, and it was shown that the peak power requirements can be substantially reduced by the use of an iron core to power levels handled by industry today. It was also shown that for an ohmic heating system initiated plasma that the cost of the iron core ohmic heating power system (iron core, dual rectifier, and DC switch) is less than the cost for a subset of the power system for an ai… more
Date: January 1, 1977
Creator: Ballou, J. K. & Schultz, J.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Evaluation of an all-glass, evacuated, tubular, nonfocusing, nontracking solar collector array. First annual progress report, July 1, 1976--August 31, 1977

Description: A spaced, evacuated tubular radiation receiver employing a highly selective absorber surface and light enhancement features has been subject to extensive test and analysis. Air was used as the heat transfer fluid. The design, installation, test and analysis of the air cooled collector was conducted. The thermal performance of the air cooled collector was found to be better than predicted when rated on an all day operating basis. The high performance characteristic is enhanced by the features of… more
Date: December 1, 1977
Creator: Moan, K L
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Conceptual design of a superconducting magnet coil for the large coil program. [Flat-wound NbTi coils]

Description: A conceptual design for a toroidal field (TF) coil for a six coil test array has been developed. The electromagnetic, cryogenic, structural, manufacturing, quality assurance and verification testing requirements have been analyzed. The bore is oval shaped and is 2.35 meters horizontally and 3.35 meters vertically. The coil is designed to operate at 8T peak field at rated current of 10450 amperes when the other 5 coils in the toroidal array are at 80% rated current. Using-flat-wound NbTi conduct… more
Date: January 1, 1977
Creator: Quay, R.; Bryant, R. W.; Koenig, R. F.; Ferrante, J. J.; Linkinhoker, C. L.; Donato, J. W. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

LLL total flow geothermal program: summary of two-phase nozzle tests for scale control and materials performance

Description: A series of nozzle and wearblade tests to evaluate scale control and materials performance under total flow nozzle inlet conditions and simulated turbine blade environments was completed using Magmamax No. 1 well fluid. Brine acidification was effective in preventing scale in nozzles and on wearblade flow surfaces. Acid consumption measurements indicate that acid cost will be less than 2 mills/100 lb. brine. Measured erosion rates were low and the results indicate that available materials will … more
Date: December 1, 1977
Creator: Tardiff, G.E. (ed.)
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Solar Pilot Plant, Phase I. Preliminary design report. Volume II. System description and system analysis. CDRL item 2

Description: Honeywell conducted a parametric analysis of the 10-MW(e) solar pilot plant requirements and expected performance and established an optimum system design. The main analytical simulation tools were the optical (ray trace) and the dynamic simulation models. These are described in detail in Books 2 and 3 of this volume under separate cover. In making design decisions, available performance and cost data were used to provide a design reflecting the overall requirements and economics of a commercia… more
Date: May 1, 1977
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Stirling total energy systems study. Final report, May 15, 1976--June 13, 1977

Description: The application of Stirling cycle prime movers to total energy power generation systems was investigated. Electrical, heating, and cooling demand profiles for a typical residential complex, hospital, and office building were studied, and alternative Stirling total energy systems were conceptualized for each site. These were analyzed in detail and contrasted with purchased-power systems for these sites to determine fuel-energy savings and investment attractiveness. The residential complex and ho… more
Date: August 1, 1977
Creator: Lehrfeld, D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

New generation of arc and arc filament power supplies for pulsed neutral beams

Description: The new Tandem Mirror Experiment (TMX) facility at LLL requires that neutral beams operate for pulse lengths between 25 and 100 ms. The inevitable increase in cost over the present 12-ms pulse length capability dictated that a more economical alternative to the pulse forming networks and the transformer-type arc filament power supplies currently in use be found. A study of the various alternatives and design requirements revealed that battery banks are the most economical alternative. The therm… more
Date: October 3, 1977
Creator: Santamaria, G.T.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

High resolution x-ray crystal spectrographs

Description: Observation of x-ray line emissions are valuable for determining the thermodynamic state of the emitting plasma. For laser produced plasmas, diffraction crystals can be used to isolate x-ray monochromes to obtain high resolution spectral measurements. We will describe a versatile multi-crystal high resolution spectrograph used for photon energies from 0.5 to 6 keV. We will discuss a calculational package that tunes the response and sensitivity of the instrument and estimates the effect of sourc… more
Date: October 21, 1977
Creator: Koppel, L. N. & Eckels, J. D.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Feasibility demonstration of the Sperry down-well pumping system. Final report

Description: Advantages of down-well pumping (vs. free-flowing) of geothermal hot-water wells are presented, and criteria for such a system are discussed. The main body of the report is presented under the following section headings: the Sperry down-well pumping system; field test program; field operations; test results; and, conclusions and recommendations. The appendix includes a summary of boiler heat transfer and pressure drop calculations. (JGB)
Date: May 1, 1977
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Gas breakers for tokamak OHMIC-heating duty

Description: The current interrupting capacity of air blast and SF/sub 6/ breakers is reviewed for application in tokamak ohmic-heating circuits. Particular attention is paid to generator breakers for their large current interrupting capacity and suitability for ohmic-heating circuits.
Date: January 1, 1977
Creator: Vogel, H.F.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Improved ceramic heat exchanger material

Description: Various ceramic materials in the form of small, monolithic bars were screened as candidate materials in heat exchanger structures for automotive gas turbine engines. The material finally selected consists of 60 w/o* petalite (LAS) and 40 w/o of a recrystallizable glass which converts during thermal processing to cordierite (MAS). This new material, GE-3200, was fabricated by Coors Porcelain Company into a circular honeycomb structure 53.3 cm diameter and 10.2 cm thick (21'' x 4'') and having 69… more
Date: November 1, 1977
Creator: Rauch, H. W., Sr.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Design of a water jet drill for development of geothermal resources. Progress report, October 1--November 30, 1977

Description: Progress is reported in the evaluation of the performance of a water jet drill in a stressed rock, particularly in drilling at hole diameters in excess of one inch. Drilling tests are being carried out in a barrier pillar in a layer of coarse, lead-bearing sandstone. Problems encountered in the test drilling are discussed. (JGB)
Date: November 30, 1977
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Solar Pilot Plant, Phase I. Preliminary design report. Volume II, Book 2. Central receiver optical model users manual. CDRL item 2. [HELIAKI code]

Description: HELIAKI is a FORTRAN computer program which simulates the optical/thermal performance of a central receiver solar thermal power plant for the dynamic conversion of solar-generated heat to electricity. The solar power plant which this program simulates consists of a field of individual sun tracking mirror units, or heliostats, redirecting sunlight into a cavity, called the receiver, mounted atop a tower. The program calculates the power retained by that cavity receiver at any point in time or th… more
Date: May 1, 1977
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Power plant reject heat utilization: an assessment of the potential for wide-scale implementation

Description: An assessment of the relative economic and heat utilization merits of plant reject heat utilization systems was made in an effort to indicate those technologies that show the greatest potential for wide-scale implementation in the power generating industry. The heat utilization systems were designed to accommodate the yearly cooling needs of a 1000-MW(e) power plant. Thus, for the purposes of this study, it was assumed that these systems replaced the cooling tower as the primary condenser cooli… more
Date: December 1, 1977
Creator: Olszewski, M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Kilowatt Isotope Power System: component test procedure for the ground demonstration system multi-power level combined rotating unit. 77-KIPS-61

Description: This test procedure (No. 402) provides a detailed description of the verification methods which shall be used in the developmental program to be conducted on the Combined Rotating Unit-(CRU) of the Kilowatt Isotope Power System KIPS, to fulfill the requirements of the Ground Demonstration Test Plan. The test objectives were to: establish operating conditions, overspeed conditions and to measure basic performance; measure output power; record spin-down data and calculate bearing losses; calculat… more
Date: December 1, 1977
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Central receiver solar thermal power system, Phase 1. CDRL Item 2. Pilot plant preliminary design report. Volume IV. Receiver subsystem. [10-MW Pilot Plant and 100-MW Commercial Plant]

Description: The conception, design, and testing of the receiver subsystem proposed by the McDonnell Douglas/Rocketdyne Receiver team for the DOE 10-MW Pilot Plant and the 100-MW Commercial Plant are described. The receiver subsystem consists of the receiver unit, the tower on which the receiver unit is mounted above the collector field, and the supporting control and instrumentation equipment. The plans for implementation of the Pilot Plant are given including the anticipated schedule and production plan (… more
Date: November 1, 1977
Creator: Hallet, Jr., R. W. & Gervais, R. L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Application of direct contact heat exchangers to geothermal power production cycles. Project review, December 1, 1974--May 31, 1977

Description: Work performed on the development of direct contact heat exchanger power cycles for geothermal applications is reviewed. The period covered in the report is from the inception of the project in 1974 through May 31, 1977. Results from a large experimental program on heat exchanger develpment as well as from many analyses of components and cycle performance and economics are given. A number of working fluids and operating conditions have been considered, and no major obstacles for the implementat… more
Date: January 1, 1977
Creator: Jacobs, H. R.; Boehm, R. F. & Hansen, A. C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Mark I 1/5-scale boiling water reactor pressure suppression experiment facility report

Description: An accurate Mark I /sup 1///sub 5/-scale, boiling water reactor (BWR), pressure suppression facility was designed and constructed at Lawrence Livermore Laboratory (LLL) in 11 months. Twenty-seven air tests using the facility are described. Cost was minimized by utilizing equipment borrowed from other LLL programs. The total value of borrowed equipment exceeded the program's budget of $2,020,000. Substantial flexibility in the facility was used to permit independent variation in the drywell pres… more
Date: October 11, 1977
Creator: Altes, R.G.; Pitts, J.H.; Ingraham, R.F.; Collins, E.K. & McCauley, E.W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Shiva automatic alignment systems: a brief description

Description: A diagram is given of the basic Shiva alignment system. The alignment requirements, as originally specified and as preseently estimated, together with the performance obtained to date from the prototype equipment are described. It is expected that this performance will be satisfactory for even the most alignment-sensitive targets and significantly better than is needed for experiments not requiring highly uniform illumination. The hardware arrangement planned for a typical Shiva chain is shown.
Date: September 6, 1977
Creator: Bliss, E. S.; Summers, M. A.; Cody, R. L.; Boyd, R. D. & Wintemute, J. D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Kilowatt Isotope Power System: Test Procedure for the Radiator Long and Short Panels. 77-KIPS-111

Description: The objective of this document is to outline the procedure for conducting development tests of sections of the KIPS space radiator. The results of these tests will be utilized to determine the final design and anticipated performance characteristics of the full size ground demonstration system (GDS) radiator. This procedure is applicable to the tests planned for the short panel radiator test assembly (KIPS104000-009) and for the long panel radiator test assembly (KIPS104000-019). The test data … more
Date: January 1, 1977
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Kilowatt Isotope Power System: component test report for the ground demonstration system accumulator. 77-KIPS-100

Description: The purpose of this test was to demonstrate that the system accumulator for the developmental program to be conducted on the Kilowatt Isotope Power System (KIPS) fulfilled the requirements of the test procedure (TP 400) test objectives. The results of the expulsion testing performed on the system accumulator are presented.
Date: October 10, 1977
Creator: Brainard, E.L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Design, fabrication, and testing of a fast discharge homopolar machine (FDX)

Description: The Fast Discharge Experiment (FDX) is a 0.36 MJ, 200 V homopolar machine designed to discharge in one millisecond. All components, including dual brush actuation systems, a room-temperature 2 x 10/sup 6/ A-t pulsed copper coil, two aluminum rotors with copper slip rings, low inductance return conductors, coaxial transmission line, four fast closing (30 ..mu..sec), megamp switches, hydrostatic journal bearings, squeeze film thrust bearings and a fiberglass reinforced epoxy structure have been f… more
Date: January 1, 1977
Creator: Gully, J. H.; Driga, M. D.; Grant, B.; Rylander, H. G.; Tolk, K. M.; Weldon, W. F. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
Back to Top of Screen