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Analysis of Six-Bar Linkage Using Digital Computer

Description: Summary. The analysis of the motion of a six-bar linkage is difficult because of the large number of variables involved and the large number of calculations that have to be made for each position of the linkage. If a digital computer is used to make the calculations required for a multi-position analysis of a mechanism, it is feasible to design by analyzing a large numbers of similar linkages and selecting the optimum configuration. In this paper expressions have been derived for the output ang… more
Date: May 20, 1960
Creator: Dunk, A. C. & Hanson, C. L.
Item Type: Refine your search to only Report
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Burnout Heat Fluxes for Low-Pressure Water in Natural Circulation

Description: Twenty-nine experimental determinations of burn-out heat flux were made with water flowing by natural circulaion through electrically heated vertical tubes with and without internal twisted tapes and through rectangular cross sections of three aspect ratios. Heated lengths varied from 10 to 33 in., system pressure at the testsection flow exit from 14.7 to 26.3 psia, inlet subcooling from 36 to 170 deg F, and burn-out heat flux from 13,000 to 218,500 Btu/hr/sq ft. Tests were made with both unres… more
Date: December 20, 1960
Creator: Gambill, W. R. & Bundy, R. D.
Item Type: Refine your search to only Report
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Calibration of Line Standards of Length and Measuring Tapes at the National Bureau of Standards

Description: From Abstract: "The methods used at the National Bureau of Standards in calibrating line standards of length and measuring tapes submitted for standardization are outlined. The equipment used is described briefly. There is a discussion of some considerations that should be given as to whether or not a standard should be submitted to the Bureau."
Date: May 20, 1960
Creator: Judson, Lewis V.
Item Type: Refine your search to only Report
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Chemical Processing Department monthly report for May 1960

Description: Production of Pu nitrate from separations plants during May was below forecast. A Np recovery campaign in Purex yielded 1.5 kg. Production and shipments of UO{sub 3} met schedules. Unfabricated Pu metal production was below forecast, but all shipments were on schedule. Decontamination efficiency was low in Purex solvent extraction around the time of the Np recovery. The damaged Redox B-2 dissolver is being restored; processing of enriched metal in A and C dissolvers was continued. A spectrograp… more
Date: June 20, 1960
Item Type: Refine your search to only Report
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DESIGN CRITERION OF PLENUM TO REFLECTOR BLOCK SEAL FOR HTGR REACTOR VESSEL

Description: A survey was made of sealing methods and their adaptability to the requirements of the plenum reflector seal on the HTGR reactor vessel. A leak rate through the seal of 43.8 pounds per hour of helium was established as an acceptable leak. Lap joints of steel to graphite or graphite to graphite with a 100 RMS surface finish met the required leak rate and two basic concepts of this type of seal are illustrated. (auth)
Date: April 20, 1960
Creator: Kalk, W.A.
Item Type: Refine your search to only Report
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Detection of tube leaks in piles

Description: This report discusses the use of liquid ammonia as a tracer for the detection of cooling water leaks into the piles. It is both safe and cheap and can be detected by methods adaptable to direct-reading instrumentation on a continuous-flow sample. Moderate capital costs and materials costs of less than $50 per pile test are anticipated.
Date: January 20, 1960
Creator: Upson, U. L.
Item Type: Refine your search to only Report
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Effect of Layering Above a Refractor on the Character of the Refraction Arrival

Description: Abstract. The waveform or character of a refraction arrival has become internationally important because of its use in determining source parameters. An approximate theoretical machine calculation has been made to show the effect of layering above a refractor on the character of the refraction arrival. The method is illustrated with a geologic model taken from the Edwards Plateau area of West Texas. The effect of the Edwards limestone, Comanche, and Trinity formations on the refraction from the… more
Date: September 20, 1960
Creator: Werth, Glenn C.
Item Type: Refine your search to only Report
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A Galvanic Corrosion Problem Associated With the Preparation of Multimetallic Beryllium Samples

Description: Artifacts were noticed in the microstructure of multimetallic beryllium samples that were polished on the Syntron vibratory polisher. The artifacts were at first erroneously attributed to diffusion of beryllium into the dissimilar metal. The real cause of the effect is thought to be caused by a galvanic corrosion which takes place during polishing. Small additions of sodium nitrate to the polishing slurry were found to eliminate the corrosion. (auth)
Date: April 20, 1960
Creator: Hewette, D. M., II
Item Type: Refine your search to only Report
open access

HEAT TRANSFER IN OSCILLATING FLOW. Second Progress Report for the Period October 1, 1959-September 30, 1960. Aeronautical Engineering Report No. 483-b

Description: The investigation of heat transfer in oscillating flow was continued. A series of tests to further investigate the dependence of heat transfer on various parameters was made for three locations of the heat-transfer section along the duct at several harmonic frequencies with pressure amplitudes varying from 0.4 steady-state pressure to zero. (W.L.H.)
Date: October 20, 1960
Creator: Harrje, D. T.
Item Type: Refine your search to only Report
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Hydraulic demand curves for K-reactor geometry at low tube powers

Description: The outlet water temperature limits for the Hanford production reactors are based, among other things, on the ability to prevent excessive fuel temperatures during or following inadvertent flow losses or power surges. The analyses involved in the determination of the limits are dependent upon laboratory heat transfer experiments which closely simulate actual reactor conditions in a single process tube. The heat transfer experiments are quite complex in that they involve the recording of rapid c… more
Date: July 20, 1960
Creator: Waters, E. D. & Fitzsimmons, D. E.
Item Type: Refine your search to only Report
open access

Instruction Manual, Mercury Relay Pulse Generator Model 1-1212C

Description: The Model Q-1212C Pulser is a single frequency (60 pps) generator whose output waveform is characterized by a rise-time of less than 4 mµsec and, depending upon the method of termination, an exponential decay having a time constant of 300 or 600µsec. The waveform approximates that produced by a radiation detector. The waveform approximates that produced by a radiation detector. The maximum available output from the instrument is 10 volts, positive or negative polarity, and is continuously adjus… more
Date: September 20, 1960
Creator: Fairstein, E.
Item Type: Refine your search to only Report
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Investigation of Sodium Leak Plugging

Description: A program is reported to investigate a method of stopping sodium leaks at 1200 deg F by reacting the leaking material with a gas such as carbon dioxide or oxygen. Such a plugging mechanism would be useful in preventing shutdowns due to sodium leaks such as those in the shell of a calandria core. Results indicate little likelihood of success for this mechanism above 600 deg F. (J.R.D.)
Date: October 20, 1960
Creator: Peelgren, M. L. & McDonald, J. S.
Item Type: Refine your search to only Report
open access

Irradiation Processing Department monthly report, May 1960

Description: This document details activities of the irradiation processing department during the month of May, 1960. A general summary is included at the start of the report, after which the report is divided into the following sections: Research and Engineering Operations; Production and Reactor Operations; Facilities Engineering Operation; Employee Relations Operation; and Financial Operation.
Date: June 20, 1960
Creator: Greninger, A. B.
Item Type: Refine your search to only Report
open access

LEAKAGE CHARACTERISTICS OF OPENINGS FOR REACTOR HOUSING COMPONENTS

Description: Measurements were made of the air leakage rates through structural components that penetrate semicontainment reactor housing installations. Full- sized test specimens were sealed inside a 10-ft-diameter test sphere, and the leakage rate was measured as a function of pressure for pressure differentials of up to 25 in. of water. The data were fitted to empirical equations that describe the leak rate at any pressure differential within the range of the experimental tests. The forms of the equation… more
Date: June 20, 1960
Creator: Baurmash, L.; Burnett, F. C.; Koontz, R. L. & Nelson, C. T.
Item Type: Refine your search to only Report
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Mechanism of Electroreduction of Chromic Ion at the Mercury Cathode

Description: The mechanism of reduction for chromium(III) ion to chromium(II) at the mercury cathode was studied in 0.1M KNO/sub 3/. Data obtained at varying temperature and solution composition from polarograms gave values for DELTA H*, DELTA S*, and DELTA F* which indicated that two mechanisms were involved. At potentials more positive than the polarographic half-wave potential, the mechanism appeared to be simple electron transfer from the electrode to the chromium(III) ion in solution. When the potentia… more
Date: May 20, 1960
Creator: McLain, M.E. Jr.
Item Type: Refine your search to only Report
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Mercury Barometers and Manometers

Description: From Abstract: "Sources of error in measuring pressures are described in considerable detail, particularly for portable instruments including scale, temperature , gravity, capillarity, vacuum errors and return gas column. Methods of minimizing those errors and of making the corrections, including extensive tables, are presented."
Date: May 20, 1960
Creator: Brombacher, W. G.; Johnson, D. P. & Cross, J. L.
Item Type: Refine your search to only Report
open access

A Method of Correlating Irradiation Effects in Dispersion Fuels

Description: A method of correlating irradiation effects in dispersion fuels was proposed in which the effects of irradiation conditions are considered independently of material variables. Two simple failure models were devised (failure by creep and by short-term stress yield). Criteria which permit estimates of the relative severity of tests made under different test conditions but on identical specimens were developed. Numerical application of the procedures for 18-8 stainless steel with 25 and 30 wt.% UO… more
Date: January 20, 1960
Creator: Keller, D. L.; Hulbert, L. E. & Dunnington, B. W.
Item Type: Refine your search to only Report
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