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ORR Operations for Period April 1961 to April 1962

Description: A summary of the activities in the 4th operational year is presented for the ORR. On-stream time at 30 Mw was relatively steady with 75.4 and 83.7% representing the lowest and highest quarters. Modification of the ball-latch mechanism of the shim-rod-drives is in progress. The primary cooling system bypass control valve was modified and a d-c pony motor was added at the No. 3 primary pump. This addition was made to increase the reliability of adequate water flow for afterheat cooling. A study o… more
Date: October 16, 1962
Creator: Binford, F.T.; Casto, W.R. & Colomb, A.L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

THE RELEASE OF Kr$sup 85$ FROM UO$sub 2$ IN ORR CAPSULES

Description: In an attempt to determine the validity of the method of predicting the release of fission gases from U0/sub 2/ suggested recently by Cottrell et al., a series of calculations were made of the expected release of Kr/sup 85/ from prototype Experimental Gas-Cooled Reactor (EGCR) fuel capsule irradiated in the Oak Ridge Research Reactor (ORR). The computed values were then compared with measured values of the per cent Kr/sup 85/ released. In the calculations, the thermal conductivity of the U0/sub… more
Date: October 1, 1961
Creator: Scott, J.L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Administration of ORNL Research Reactors

Description: Organization of the ORNL Operations division for administration of the Oak Ridge Research Reactor, the Low Intensity Testing Reactor, and the Oak Ridge Graphite Reactor is described. (J.R.D.)
Date: August 20, 1962
Creator: Casto, W. R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Reactor Controls Reliability and Maintenance at the ORR

Description: Early evaluation and study of the various criteria for the ORR clearly established the requirements for the fundarnental safety and control instrumentation, and the instrumentation was well integrated into the design and construction of the plant. However, it was not designed for the optimum of maintenance convenience and minimum reactor down time in the event of instrument failure. The revisions and additions that have been made in the physical plant and maintenance which have resulted in a de… more
Date: August 28, 1962
Creator: West, K.W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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IN-PILE GAS-COOLED FUEL ELEMENT TEST FACILITY

Description: Paper presented at American Nuclear Society Meeting, June I8-21, 1962, Boston, Mass. Design and operating problems of unclad and ceramic gas-cooled reactor fuels in high temperature circulating gas systems will be studied using a test facility now nearing completion at the Oak Ridge Research Reactor. A shielded air-tight cell houses a closed circuit gas system equipped for dealing with fission products circulating in the gas. Experiments can be conducted on fuel element performance and stabilit… more
Date: July 10, 1962
Creator: Zasler, J.; Huntley, W. R.; Gnadt, P. A. & Kress, T. S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

THE OAK RIDGE RESEARCH REACTOR (ORR), THE LOW-INTENSITY TESTING REACTOR (LITR), AND THE OAK RIDGE GRAPHITE REACTOR (OGR) AS EXPERIMENT FACILITIES

Description: >Characteristics of the ORR, LITR, and OGR that experimenters have found to be important are listed. The results of a survey conducted among experimenters on the utility of the reactors for various types of experiments are discussed, and some changes which might be made to improve the utilization are listed. A brief outline, with references, of most of the experiments currently being performed is included. (auth)
Date: August 28, 1962
Creator: George, K.D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

ORR Operations for Period April 1960-April 1961

Description: Conversion of the ORR from 20 to 30 Mw operating level was achieved during July 1960 after a scheduled shutdown for completion of a new cooling system. Operating time reached a high of 82% during the last quarter of 1960. The first quarter of 1961 showed an operating time of 80% despite 2 shutdowns and some additional down time to repair mechanisms associated with the shim rods. Changes were made in the south engineering test facility for GCR test loops. Detailed data taken from quarterly opera… more
Date: October 20, 1961
Creator: Cox, J.A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

GENERAL STANDARDS GUIDE FOR EXPERIMENTS IN ORNL RESEARCH REACTORS

Description: The Oak Ridge National Laboratory has three generalpurpose research reactors which accommodate testing loops, target irradiations, and beam-type experiments. Since the experiments must share common or similar facilities and utilities, be designed and fabricated by the same groups, and meet the safe safety criteria, certain standards for these have been developed. These standards deal only with those properties from which safety and economy of time and money can be maximized and do not relate to… more
Date: August 20, 1962
Creator: Cagle, C.D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Vapor Containment in the Oak Ridge Research Reactor

Description: Containment of the ORR is attained by means of a ventilation system which is capable of exhausting air from the building at a rate sufficient to ensure that all leakage of air at ground level is into the building. The exhaust air is treated by scrubbing and filtration and is discharged from a large stack at a height and velocity sufficient to guarantee that meteorological dispersion will reduce the resulting concentration of radioactive material to an acceptable level. Factors involved in selec… more
Date: August 23, 1962
Creator: Binford, F.T.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Problems Encountered During Four Years of ORR Operation

Description: The over-all design and operation of ORR is reviewed in the light of four years of operating experience. Items discussed consist of the reactor components and instrumentation, reactor and pool cooling systems (including system cleanup), the emergency systems for electric power and reactor cooling, the waste-disposal systems (liquid, gaseous, and solid), and the building, itself. The ORR was the first of a class of reactors which combined the features of both the pool-reactor and tank-reactor ty… more
Date: August 23, 1962
Creator: Tabor, W.H. & Costner, R.A. Jr.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Engineering Capabilities of in-Pile Irradiation Facilities Used by GE-ANPD

Description: GE-ANPD had exclusive use of irradiation testing facilities in four reactors: the Materials Test Reactor (MTR), the Engineering Test Reactor (ETR), the Low lntensity Test Reactor (LlTR), and the Oak Ridge Research Reactor (ORR). A compilation of data concerning the GE-ANPD facilities in these reactors is presented. lnstrumentation capabilities, dimensions of the in-pile tubes, flow characteristics, control capabilities, and detailed design data are listed. (auth)
Date: October 1, 1961
Creator: Harry, R. J. & Fries, R. C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Fuel Cycles and Loading Programming for Water-Cooled Research Reactors

Description: The problems encountered while developing loading methods for the ORNL water-cooled research reactors are discussed. The methods used to program the fuel loading for the LITR and ORR are described as well as the experimental methods that produced the data necessary for the solution of these problems. (auth)
Date: July 31, 1962
Creator: Colomb, A. L. & Cavin, D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Final Scientific Report : Development of Transition Metal/ Chalcogen Based Cathode Catalysts for PEM Fuel Cells

Description: The aim of this project was to investigate the potential for using base metal sulfides and selenides as low cost replacements for precious metal catalysts, such as platinum, currently being used in PEM fuel cells. The approach was to deposit thin films of the materials to be evaluated onto inert electrodes and evaluate their activity for the cathode reaction (oxygen reduction) as well as ex-situ structural and compositional characterization. The most active materials identified are CoS2 and the… more
Date: February 29, 2008
Creator: Campbell, Stephen, A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Studies of Improvement of Power Density in Orr Loops

Description: Using a simplified model, calculations were made of the possible effects of voids upon the power density in ORR loop experiments. It is concluded that the power density may be markedly increased if voids and channels are plugged with moderator material such as graphite or beryllium. (auth)
Date: April 11, 1960
Creator: Tobias, M. L. & Vondy, D. R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

SAFETY AND OPERABILITY REVIEW OF EXPERIMENTS TO BE OPERATED IN NUCLEAR REACTORS AT ORNL

Description: The operation of the tests and experiments conducted in the ORR, the LITR, and the ORNL Graphite Reactor is discussed. In order to minimize the possibility of any hazardous conditions developing into an incident involving the safety of personnel, the reactor, and other equipment, any experiment design and installation should be checked or reviewed to ensure that all conceivable dangers are recognized and that appropriate safeguards have been incorporated into the design. (W.D.M.)
Date: December 1, 1958
Creator: Cagle, C.D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Analog Computer Study of the Operation of the Gas-Cooled Loop on the Oak Ridge Research Reactor

Description: An annlog computer study of the ORR gas-cooled loop was made. The effects on fuel and gas temperatures of changing gas (nitrogen) flow rates, turning the heater on and off, and inserting or removing the fuel were determined. It was found that the temperature of the sample, if fuel, could be raised more rapidly than it could be reduced, and that the temperature could be reduced faster with high rates of flow. All of the equations used in building up the computer are given, and some of them are d… more
Date: July 1, 1958
Creator: Green, F. P.; Neill, F. H.; Short, B. E. & Winton, M. L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

ORR OPERATIONS FOR PERIOD APRIL 1958 TO APRIL 1959

Description: It has been the custom to report the operating experience at the ORR along with other activities in the reports of the ORNL Operations Division. It was decided to combine the sections of the Operations Division reports appropriate to ORR operation covering the year from April 1958 through March 1959. (W.D.M)
Date: September 10, 1959
Creator: Cox, J.A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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