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Analysis of costs and benefits for eight powerplant productivity improvement projects. Project 1, Task 3. Final report

Description: In 1976, DOE (FEA) sponsored the development of a systematic methodology for the identification and analysis of candidate projects which a utility might undertake to improve baseload unit reliability. This methodology also enabled the user to estimate a project's effect on the future performance of the unit. A project was sponsored in Illinois to demonstrate the methodology and to encourage increased power plant productivity in the state. A total of 8 improvement projects were conducted and ana… more
Date: June 8, 1979
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Direct efficiency measurement and analysis of residential oil-fired boiler systems: burner-boiler/furnace efficiency test project. Annual report FY 1978

Description: A laboratory study is made to measure the efficiencies of residential heating equipment. A direct measurement technique provides an accurate evaluation of the efficiency of residential heating units during full-load and part-load operation. The laboratory data is then used to determine annual fuel consumption and fuel-weighted seasonal efficiency for each heating unit based on typical operating parameters (size of residence, geographic location, and usage). The results of the study include both… more
Date: November 1, 1979
Creator: McDonald, R. J.; Batey, J. E.; Allen, T. W. & Hoppe, R. J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Low cost Czochralski crystal growing technology: near term implementation of the flat plate photovoltaic cost reduction of the low cost solar array project. Third quarterly progress report, October 1-December 31, 1979

Description: The purpose of the program is to demonstrate the growth of up to 150 kilograms of 6'' diameter single crystal silicon ingot from one crucible by the Czochralski (CZ) method. The method being developed relies upon conventional CZ technology combined with new equipment and process designs and concepts. These concepts alternate cycles of crystal growth and hot melt replenishment and are designed to be ultimately suitable for use in a high volume production facility. A Hamco Model CG2000 RC crystal… more
Date: January 1, 1979
Creator: Roberts, E. G.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Rock bed storage with heat pump. Final report

Description: The study, Rock Bed Storage with Heat Pump, established the feasibility of mating a heat pump to a rock bed storage to effect optimal performance at the lowest cost in single family residences. The operating characteristics of off-the-shelf components of heat pump/rock bed storage systems were studied, and the results were used to formulate configurations of representative systems. These systems were modeled and subsequently analyzed using the TRNSYS computer program and a life cycle cost analy… more
Date: May 1, 1979
Creator: Remmers, H.E. & Mills, G.L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Assessment of feasibility, economics, and market potential for a molten salt system at 1000/sup 0/F reheat steam: feasibility, economics, and market potential

Description: As a result of the Advanced Central Receiver (ACR) Phase I systems studies, Martin-Marietta Corporation (MMC) developed a conceptual design employing 1050/sup 0/F molten salt and a 950/sup 0/F/950/sup 0/F reheat turbine. This concept appears to have the potential for providing higher steam conditions leading to higher performance and wider market application. This report presents the results of a preliminary investigation of the system to determine the feasibility of providing 1000/sup 0/F/1000… more
Date: October 1, 1979
Creator: DeRienzo, P; Masaki, M & Mathur, P
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Heliostat production evaluation and cost analysis

Description: The primary objective of ths study is to provide a factory cost for the production of heliostats in terms of 1979 dollars. Factory cost is defined as the sum of all direct labor, direct material and burden expenses that are incurred in the manufacture of a heliostat, and its packaging for shipment. Transportation, installation, taxes other than plant real taxes, profit, selling expenses, and all other profit and loss items are not included. Two production volumes are considered, 25,000 heliosta… more
Date: December 1, 1979
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Continuous Czochralski growth: silicon sheet growth development of the large area silicon sheet task of the Low Cost Silicon Solar Array Project. Second annual progress report, October 1-September 30, 1979

Description: The purpose of this program is to demonstrate the growth of at least 100 kilograms of mono crystalline ingot from one crucible by the Czochralski (CZ) method. The approach to the continuous growth process being pursued in this effort relies on conventional CZ technology combined with new equipment designs which allow repeated alternate cycles of crystal growth and hot melt replenishment by methods which are suitable for use in a high volume production facility. A Hamco Model CG2000 crystal grow… more
Date: January 1, 1979
Creator: Lane, R.L. & Roberts, E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Technical evaluation of the proposed deletion of a reactor trip on a turbine trip below 50-percent power for the Beaver Valley nuclear power plant, Unit 1

Description: This report documents the technical evaluation of the Duquesne Light Company's proposed license amendment for the deletion of a reactor trip on a turbine trip below 50% power for the Beaver Valley nuclear power plant, Unit 1. This report is supplied as part of the Selected Electrical, Instrumentation, and Control Systems Issues Program being conducted for the US Nuclear Regulatory Commission by Lawrence Livermore Laboratory.
Date: December 1, 1979
Creator: Reeves, W. E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Development of Nomarski microscopy for quantitative determination of surface topography

Description: The use of Nomarski differential interference contrast (DIC) microscopy has been extended to provide nondestructive, quantitative analysis of a sample's surface topography. Theoretical modeling has determined the dependence of the image intensity on the microscope's optical components, the sample's optical properties, and the sample's surface orientation relative to the microscope. Results include expressions to allow the inversion of image intensity data to determine sample… more
Date: January 1, 1979
Creator: Hartman, J. S.; Gordon, R. L. & Lessor, D. L.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Reliability assessment of main loop residual heat removal options in the GCFR

Description: Reliability of decay heat removal is an important safety consideration in the Gas-Cooled Fast Breeder Reactor (GCFR). The design evolution of the residual heat removal (RHR) systems over the past few years has been markedly aided by system reliability analyses and has resulted in design improvements which greatly reduce the probability of a loss of coolable core geometry. This evolution consisted partly in improvements to the main loop residual heat removal system because analysis of an early d… more
Date: October 1, 1979
Creator: Taniguchi, T. & Torri, A.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Status of evaluations and modifications of diesel generator status annunciator systems at various US nuclear power plants

Description: This report documents the current status of evaluations and modifications to the diesel generator status annunciators in a number of US nuclear power plants. These modifications may be required in order to: ensure that all conditions which might render the diesel generators incapable of automatic starting are annunciated in the control room; ensure that the wording on the control room annunciator clearly indicates to the operator that the diesel generator is unavailable if such is the case; and… more
Date: October 1, 1979
Creator: Shindell, B. M. & Rumble, R. P.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Design guide for category VI reactors: air-cooled graphite reactors

Description: The purpose of this Design Guide is to provide additional guidance to aid the DOE facility contractor in meeting the requirement that the siting, design, construction, modification, operation, maintenance, and decommissioning of DOE-owned air-cooled graphite reactors be in accordance with generally uniform standards, guides, and codes which are comparable to those applied to similar reactors licensed by the Nuclear Regulatory Commission (NRC).
Date: February 1, 1979
Creator: Brynda, W J; Karol, R & Powell, R W
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Solar thermal repowering systems integration. Final report

Description: This report is a solar repowering integration analysis which defines the balance-of-plant characteristics and costs associated with the solar thermal repowering of existing gas/oil-fired electric generating plants. Solar repowering interface requirements for water/steam and salt or sodium-cooled central receivers are defined for unit sizes ranging from 50 MWe non-reheat to 350 MWe reheat. Finally balance-of-plant cost estimates are presented for each of six combinations of plant type, receiver … more
Date: August 1, 1979
Creator: Dubberly, L. J.; Gormely, J. E. & McKenzie, A. W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Treat upgrade fuel fabrication

Description: An extrusion and thermal treatment process was developed to produce graphite fuel rods containing a dispersion of enriched UO/sub 2/. These rods will be used in an upgraded version of the Transient Reactor Test Facility (TREAT). The improved fuel provides a higher graphite matrix density, better fuel dispersion and higher thermal capabilities than the existing fuel.
Date: January 1, 1979
Creator: Davidson, K.V. & Schell, D.H.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

LOFT CRDM vent orifices

Description: The failure of a vent line on the LOFT control rod drive mechanism (CRDM) would result in the quick blowdown of the top of the CRDM with high pressure in the lower region. This large pressure drop across the lead screw could possibly eject the control rod assembly (CRA) from the reactor core. The rod ejection accident has been analyzed for the LOFT core but in this case a common mode failure may cause the loss of all four vent lines. Therefore, orifices must be installed in each CRDM pressure c… more
Date: April 9, 1979
Creator: Hills, S.W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Large area silicon sheet by EFG. First quarterly report, January 1, 1979-March 31, 1979

Description: In growth station JPL No. 1 the work during this quarter centered around trying to evaluate any influences on ribbon quality which might be caused by various materials of construction which are used in the growth furnace. At the present level of ribbon quality, which has produced 8.5% to 9.5% efficient solar cells, no particular influence of any furnace part was detected. The experiments rather led to the suspicion that the general environment and the somewhat unoptimized materials handling pro… more
Date: April 15, 1979
Creator: Wald, F.V.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Formation, adhesion and mechanical/chemical properties of protective coatings

Description: Some general considerations for protective coatings are discussed. It is suggested that ceramic coatings may provide a class of coatings applicable to high temperature turbine blades for use in a corrosive/erosive environment. In particular, the ceraming glass materials would seem to hold promise, but little or nothing has been done on depositing these materials by vacuum processes.
Date: January 1, 1979
Creator: Mattox, D.M.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Technical evaluation of the proposed changes in the technical specifications for emergency power sources for the Big Rock Point nuclear power plant

Description: The technical evaluation is presented for the proposed changes to the Technical Specifications for emergency power sources for the Big Rock Point nuclear power plant. The criteria used to evaluate the acceptability of the changes include those delineated in IEEE Std-308-1974, and IEEE Std-450-1975 as endorsed by US NRC Regulatory Guide 1.129.
Date: December 1, 1979
Creator: Latorre, V. R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Development of an acoustic sensor for a geothermal Borehole Televiewer

Description: The objective of this project is to upgrade acoustic sensor technology such that appropriate well logging instruments can be made to operate under the hostile environment conditions anticipated in geothermal resource exploration and evaluation. The Borehole Televiewer (BHTV) was selected as the vehicle for this sensor improvement work, primarily because of its demonstrated ability to detect and characterize fractures under sub-geothermal conditions. The work done toward providing an improved se… more
Date: March 1, 1979
Creator: Wonn, J.W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Segregation effects in JBK-75

Description: Chemical segregation of alloying elements, can be a severe problem in complex alloys. Many problems have been experienced with developing fabrication processes for JBK-75 and it is suggested that these difficulties may be related in part to the degree of chemical heterogeneity that exists in the alloy. Early testing and qualification of the alloy was made on relatively homogeneous samples, which came from small diameter ingots. In large size ingots used for production, it is more difficult to a… more
Date: December 21, 1979
Creator: Mataya, M. C.; Edstrom, C. M.; Krenzer, R. W. & Doyle, J. H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Low torque accurate live centers for grinding

Description: Live centers for grinding processes must exist in a very harsh environment including griding debris as well as vibration. In addition, the centers must be very accurate and retain the accuracy in the harsh environment. In crush grinding small diameter parts, most live centers were found to have a very short life or to be too stiff to turn. A solution to the short life is presented that preserves good accuracy and requires minimal torque to turn.
Date: January 1, 1979
Creator: Burnham, M.W.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Long-term average performance benefits of parabolic trough improvements

Description: Improved parabolic trough concentrating collectors will result from better design, improved fabrication techniques, and the development and utilization of improved materials. This analysis quantifies the relative merit of various technological advancements in improving the long-term average performance of parabolic trough concentrating collectors and presents them graphically as a function of operating temperature for north-south, east-west, and polar mounted parabolic troughs. Substantial annu… more
Date: October 1, 1979
Creator: Gee, R.; Gaul, H.; Kearney, D. & Rabl, A.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Test bed for high-uranium-loaded fuel plates

Description: An irradiation test facility has been designed and built to provide a test bed for irradiating a variety of miniature fuel plates. The objective of these tests is to screen various candidate materials as to their suitability for replacing the fully enriched uranium fuel materials currently used by the world's test and research reactors with a lower enrichment fuel material, without significantly degrading reactor operating characteristics and power levels. The use of low-uranium enrichment (up … more
Date: January 1, 1979
Creator: Senn, R. L. & Martin, M. M.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Millville Wind Turbine Generator: failure analysis and corrective design modification

Description: Fatigue cracks in the blade skins of the Millville Wind Turbine Generator were fractographically analyzed. It is believed they were caused by large flapwise deflections during a wind storm on December 4, 1978. The deflections caused the skin to buckle, which initiated rapidly growing fatigue cracks. Propagation continued to the leading edge, moving radially inward and outward along the leading edge radius. Communication between Rockwell and Millville resulted in a modified blade design which in… more
Date: July 1, 1979
Creator: Waldon, C. A.; Carr, M. J. & Grotzky, V. K.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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