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Effect of slug rupture considerations on C Pile power level limits

Description: This memorandum discusses slug rupture frequency which appears to be a factor that may limit the power level of C Pile. Since additional exposure of Group 8 uranium slugs has increased the available information on the behavior of material similar to that which will be charged into C Pile, a review of this tube power limitation has been made. Utilization of additional data has been possible by use of the revised method of calculating rupture rates discussed in reference (2).
Date: September 15, 1952
Creator: Lang, L. W.
Partner: UNT Libraries Government Documents Department

Tube temperature rise limits: Boiling considerations

Description: A revision of tube power limits based on boiling considerations was presented earlier. The limits were given on a basis of tube power versus header pressure. However, for convenience of operation, the limits have been converted from tube power to permissible water temperature rise. The permissible {triangle}t`s water are given in this document.
Date: March 26, 1952
Creator: Vanderwater, R. G.
Partner: UNT Libraries Government Documents Department

Water treatment during C Pile start up

Description: This memorandum details the recommendation of the Technical Section that the C Pile be started up using alum treated water to which has been added sodium dichromate at a concentration of 2 ppm., and that the pile be purged at monthly intervals despite the expected absence of film formation. During the initial months of operation the necessity of adding sodium dichromate and of purging the pile should be evaluated with the hope that these factors can be eliminated from the process. The reasons for this recommendation, and proposals for water treatment in the current operating piles are discussed.
Date: September 22, 1952
Creator: Woods, W. K.
Partner: UNT Libraries Government Documents Department

Technical activities report: Heat transfer studies

Description: This report covers studies in the following areas: boiling consideration studies; water flow and power levels at increased header pressures; testing and time delay relay -- production test 105-502-E; slug temperature calculations; discontinuity in slug bonding; measurement of slug bond coefficients; pressure drop film studies; resistant heating of slugs; thermocouple slug; correlation of graphite temperature measurement; comparison of temperatures measured in burnout tubes at F pile; temperature readings from process tube block channel thermocouples at F pile; reliability of temperature measured by G-thermocouples; process tube thermocouples for monitoring graphite temperatures; pile operation during critical electrical power outage; studies of high density concrete shields; distortion and stress in biological and thermal shields of B, D, and F piles; and pile process specifications.
Date: February 1, 1952
Creator: Carbon, M. W.
Partner: UNT Libraries Government Documents Department

Project C-431-B -- Ball 3-X safety system -- 105-C

Description: The following is recommended: Initial installation of 39 hoppers of mixed boron steel and ordinary steel balls (80% B steel balls, 20% ordinary steel balls). (The remaining 6 hoppers are to be filled with removable step plugs). Procurement of sufficient balls for possible later installation of 80-20 mixed balls in place of step plugs.
Date: August 25, 1952
Creator: Reed, E. L.
Partner: UNT Libraries Government Documents Department

Recommended settings for 105-C trips

Description: This memorandum discusses the engineered safety system which combines the Ball 3-X System with the VSR System. The operation of the system is detailed and settings are recommended for 105-C trips.
Date: September 25, 1952
Creator: Roy, G. M.
Partner: UNT Libraries Government Documents Department

Review and recommendations concerning the location of proposed additional separation plant East versus West Areas

Description: It is the purpose of this report to: Review the factors which should be considered in selecting either the 200 West Area or the 200 East Area of Hanford Works as the site for a proposed separations facility, particularly from the standpoint of economics, operating convenience, and assurance of continuity of production, and make recommendations as to the location of the proposed facility.
Date: March 14, 1952
Partner: UNT Libraries Government Documents Department

Boiling limits

Description: Uncontrolled boiling of the water in a process tube might result in serious damage to a pile. Consequently, it is desirable to maintain header pressure generally sufficient to sweep out any steam which might be formed. Since the header pressure required to remove the steam depends upon the power output of the tube, the power level of a tube or pile is limited by the pressure available. In the past, tube power limitations have been specified and interpretations thereof. Recently a through study, both theoratical and experimental, has been made to determine the validity of these limitations. The purpose of this report is to present the results of the study must make recommendations for future operations. The limits presented herein are based on tube power levels.
Date: January 22, 1952
Creator: Vanderwater, R. G.
Partner: UNT Libraries Government Documents Department

Recommended C Pile power level limits

Description: This purpose of this document is to summarize the existing or contemplated limits of C Pile power level and to recommend the rates of increase of power toward these limits during initial operation. In this report pile power level and limits are expressed in terms of tube power only.
Date: June 30, 1952
Creator: McEwen, L. H. & Lang, L. W.
Partner: UNT Libraries Government Documents Department

100 Areas water treatment specifications

Description: This memorandum discussed review of the data from tests using alum in the treatment of pile process water, and using activated silica as a coagulant aid during period of low water temperature, which shows that this method should be substituted for the present method of treating pile process water in all 100 Areas. It was recommended that the water treatment procedures and specifications attached to this memorandum be initiated as standard practice in all 100 Areas as soon as it is possible to make the necessary equipment modifications and installations.
Date: July 11, 1952
Creator: Greninger, A. B.
Partner: UNT Libraries Government Documents Department

Application of Reactor Safeguard Committee Formula

Description: The Reactor Safeguard Committee formula for the allowable minimum distance between a reactor and the public domain is expressed as: r = 0.01{radical}P, where r = radius from reactor in miles, and P = reactor power level in kilowatts. The six plates in this report illustrates the application of this formula for Hanford Works, both for individual reactors and all reactors in an area.
Date: April 22, 1952
Creator: Smith, J. M.
Partner: UNT Libraries Government Documents Department

C pile slug rupture detection system

Description: This memorandum discusses experimental determination which was made of the sensitivity and operational characteristics of the modified effluent water beta activity monitor system which is to be utilized at C pile for slug rupture detection. The optimum operating conditions for this system were also determined. A comparison of the performance of the C pile system with that of the existing Hanford type beta system was made to establish the degree of improvement realized through system redesign; this information being of assistance to the Pile Physics slug rupture detector development program. This report discusses the performance of both beta sensitive systems and the parameters upon which improved performance depends. A two ionization-chamber mockup of the C pile system was installed in the near effluent water sample room at H pile and utilized in these studies.
Date: November 5, 1952
Creator: Paul, R. S.
Partner: UNT Libraries Government Documents Department

Design and construction history, Aquatic Biology Laboratory: Project C-364, December 31, 1951

Description: The GE Nucleonics Division Staff Department which now is called the Radiological Sciences Department was formerly known as the ``Health Instrument Divisions. A part of this department, presently known as the Biology Section, was formerly identified as the ``Biology Division.`` This project is concerned with a laboratory facility which is being built for the use of the Aquatic Biology Unit of the Biology Section. The Aquatic Biology group was established in 1945 to study the effect of the pile effluent on the Columbia River salmon industry. A hutment was erected to provide space for a laboratory, fish troughs, equipment, offices, and service. Thirteen outside ponds were built. Although minor improvements were subsequently added to the original facility, the expansion of the plant did not keep pace with the expansion in the operating program. This inadequacy gave rise to the project hereafter described.
Date: January 1, 1952
Partner: UNT Libraries Government Documents Department

C-Pile recommended flow -- Pressure characteristic curve and orifice pattern

Description: Final approval of a flow-pressure characteristic curve and orifice pattern for C Pile is desired as soon as possible to allow the completion of orifice assemblies and parallit instrumentation. The presentation of a recommended flow-pressure curve and an orifice pattern has been delayed by a lack of experimental flow data on the C Pile flow system. Discussion with members of the C-431-B working committee and Pile Technology Unit personnel indicated that the use of flows higher than those recommended by the Reactor Unit, in HDC-2327, was desirable on the basis that the costs of supplying more water to C Pile than required by present outlet temperature limits will be small compared to the probable saving that can be made in reduction of corrosion and slug rupture frequency. Using this agreement as well as previous data and the assumption of low enrichment as a basis, a preliminary recommendation of a higher flow curve is presented.
Date: April 29, 1952
Creator: Spencer, H. G.
Partner: UNT Libraries Government Documents Department

C and D machines functional and life tests: Interim report No. 2, Test project No. 29

Description: This test project is being carried on for the purpose of testing certain machines which are designed to charge and discharge reactor units with process metal while the unit is in operation. Satisfactory charging of process pieces while the reactor now required for charging operations. These presently required shutdowns are costly in terms of production time, and may cause undesirable thermal stresses in the unit as it changes power level. If charging can be accomplished during operation, reactor shutdowns would only be necessary for maintenance or emergency purposes. During the testing of these metal handling machines, problems have arisen involving the behavior of the process pieces as they are charged. Because these problems directly affect the charging operations, they are being closely investigated also. the machines covered by this report are designated as pressurized machines since they contain the same water pressure as the end of the process tube on ;which they are located. In most of the test work covered by this report, the full scale pressurized charging machine was replaced with a small charging cylinder. The charging operation was simplified by this change.
Date: April 24, 1952
Creator: Woods, J. C.
Partner: UNT Libraries Government Documents Department

Downcomer for 105KW and KE project CA-512-R

Description: Sometime was available for development and improvement for future designs before K pile design was authorized. One of the objectives of this development program va was to improve upon downcomer design. It as evident that the proper approach to the problem lay not in duplication because of inadequate facilities as a means of circumventing the resultant effects of failure, but rather in the adoption of a more logical engineering approach -- analyze the cause of failure, profit from the past operating experience and concentrate upon the removal of these inherent difficulties. Accordingly, a downcomer design embodying a superior method of operation was designed and tested. The design minimizes vibration by dissipation of energy through a series of orifice screens rather than impact loading of large parcels of water and turbulent friction. It greatly simplifies the maintenance problems by designing for essentially complete replacement of the downcomer by ordinary maintenance methods. It provides for very rigid construction of the inlet section and 30 parallel flow paths in the vertical portion and thus the problem of blocking the flow has been eliminated. A detailed analysis of the points is presented in this report.
Date: November 12, 1952
Creator: Robinson, T. F. & Marinos, D.
Partner: UNT Libraries Government Documents Department

Possible water flow rates at DR and H Piles

Description: Estimated water flow rates at H Pile for various postulated conditions are given. The conditions under which the data are valid are as follows: (1) the estimated accuracy of the tube flow rates is {+-}5%, and of pile flow rates {+-}7%; (2) the pile flow rates are based upon the present tube geometry, orifice zone pattern and total flow at H Pile; (3) the flow rates should be increased about 2% if film-free slugs and tubes are considered; and (4) flow rates for enlarged fittings are based upon fittings similar in shape to the present H Pile fittings. The maximum tube flow rates for the DR Pile would be about 2% greater than those given in the table for present tube fittings. For enlarged fittings, the rates for DR Pile tube would be the same as those given for H Pile tubes. The ultimate permissible flow will depend, in part, upon limitations on maximum cross-header pressure and maximum tube inlet pressure, and upon the instrumentation necessary to detect abnormal tube flow conditions.
Date: April 7, 1952
Partner: UNT Libraries Government Documents Department

Heat transfer studies technical activities report

Description: Discussed activities include: boiling consideration studies, C pile Panellit ranges and orifice sizes, testing of time delay relay, tube water flow studies, extrapolation of pile design data, temperature distributions in cold-sized canned J-slugs, pressure drop film studies, short tube mockup, film formation studies experiment, pile pressure drop increase studies, pile process specifications, loss of pile cooling water study, thermocouple slug, measurement of slug bond coefficients, slug temperature distribution, resistance heating of slugs, induction heating of slugs, shield temperatures with no water flow in the thermal shield cooling pipes, distortion and stress in the biological shields of B, D, and F piles, and studies of high density concrete for biological shields.
Date: April 1, 1952
Creator: Carbon, M. W.
Partner: UNT Libraries Government Documents Department

Storage of radioactive aqueous wastes from Purex processes

Description: The radioactive liquid wastes from a separations facility are customarily stored in underground waste storage tanks. The wastes from the proposed Purex Separations Plant will have a high concentration of the fission products and will result in a large evolution of heat. The possibility of these wastes boiling due to radio-disintegration of fission products has made a survey of the problem desirable. This report lists the results of this investigation.
Date: August 1, 1952
Creator: Platt, A. M. & Krieg, J. T.
Partner: UNT Libraries Government Documents Department