Download or read book Quarterly Status Report on Lampre Program for Period Ending August 20 1961 written by and published by . This book was released on 1961 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: BS>All basic experiments planned for the LAMPRE I startup program were completed. The tests included operation at 100 and 200 kw utilizing both normal and half coolant flow, and full flow operation at 400 kw. At each power level, transfer function measurements were made, and a continuous run of approximately 60 hr duration was carried out to determine the characteristics of the reactivity loss first observed at 50 kw. Various power demand tests were made. Fuel and container development was continued. Progress is reported in fuel reprocessing. The sodium test facility was operated continuously except for 7 shutdowns required by maintenance, inspection, and equipment modifications. (M.C.G.).

Download or read book Quarterly Status Report on LAMPRE Program for the Period Ending written by and published by . This book was released on 1961-08-20 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Because of it's extensive experience in the use of plutonium, the Los Alamos Scientific Laboratory is investigating the use of this fuel in fast power-breeder reactor systems. The fuels which are being studied at present in the LAMPRE Program are molten alloys, since these appear to offer a number of advantages over solid fuel elements for reactor applications, particularly in high burnup and greatly simplified reprocessing" - p.3.

Download or read book Quarterly Status Report on Lampre Program for Period Ending May 20 1961 written by and published by . This book was released on 1961 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: LAMPRE-L The reactor was started up and held st 160 deg C and at hot critical for various measurements. Some of the 160 deg C measurements included rod worth, temperature coefficient, and shim-down extrapolated mass. In the approach to hot critical, multiplication was measured during the temperature increase from 160 to 500 deg C and found to increase markedly when the core meltsd. Reactivity changes due to jarring of the fuel capsules to remove bubbles and voids in the melted fuel were observed. Zero measurements made at 48O deg C are reported. Power coefficient measurements at 0 to 46 kw and power demand experiments were made, and the 50-kw transfer function is plotted. Shielding inadequacies are discussed briefly. The results of a fuel pin scan are given. Observations on the performance of the sodium system are discuaaed. Type 17-4 PH stainless steel was found to undergo additional grain boundary precipitution during long-term exposure to temperatures below the hardening temperature, and measurements of its properties are reported. fuel and Container Development. Impurities in the LAaMPRE-1 fuel which has a corrosive effect on the fuel container are discussed. Observations in the Pu -Ce-Co phase diagram are reported. Different types of LAMPRE-1 capsule failure are discussed. Work on improving the corrosion resiatance of Ta revealed Y and W to be beneficial additives. Sodium Test Facility. The test facility was opersted nearly continuously. with test equipment pieces receiving total operating times as high as 10,400 hr. The He cover gas in the primary and secondary loops was analyzed for buildup of O/sub 2/, H/sub 2/, and CH/sub 4/. (D.L.C.).

Download or read book Reactor Fuel Processing written by and published by . This book was released on 1963 with total page 726 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Atomic Energy Research Reports for Sale by the U S Department of Commerce Office of Technical Services written by Business and Defense Services Administration and published by . This book was released on 1963 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Quarterly Status Report on Lampre Program for Period Ending August 20 1960 written by and published by . This book was released on 1960 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The LAMPRE-I project is summarized in terms of capsule development, sodium system, LCX-III, gas system, and fuel transfer and storage. The 2-Mw Sodium Test Facility was initially placed in operation on Mar. 15, 1960. Since startup, operation has been continuous except for 12 forced shutdowns required for maintenance of auxiliary steam-system equipment and repair of refractory setting in the gas-fired sodium heater. Essentially no maintenance or adjustment hns been required on sodium components or the steam generator. The steam- generating unit is illustrated and design heat-transfer criteria and observed heattransfer data are given. The intermediate sodium heat exchanger, centrifugal sodium pumps, gas-fired sodium heater, sodium flow-control valves, and purification cold trap are discussed briefly. Research and development activities for the LAMPRE Program are reported in the core-development program, core-test facility, mobileblanket studies, fuel-alloy development, container- materials development, and fuel processing. (For preceding period see LAMS- 2438.) (W.D.M.).

Download or read book Nuclear Science Abstracts written by and published by . This book was released on 1964 with total page 2066 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Reactor Materials written by and published by . This book was released on 1963 with total page 406 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Keywords Index to U S Government Technical Reports written by United States. Department of Commerce. Office of Technical Services and published by . This book was released on 1962 with total page 990 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Keywords Index to U S Government Technical Reports permuted Title Index written by United States. Department of Commerce. Office of Technical Services and published by . This book was released on 1962 with total page 860 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Quarterly Status Report on Lampre Program for Period Ending November 20 1962 written by and published by . This book was released on 1963 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The operation of LAMPRE I is summarized. The results of the examination of a defective fuel capsule and the Na coolant are given. The status of the core calculation program for the transport-theory description of core characteristics is described. The preparation of Pu-- Co-- Ce alloys is reported. The reactions of molten Co-- Ce alloys with Ta are studied. Intergranular attack was observed in the exposure of TaC, NbC, and ZrC crucibles to U--Mn alloy at 1100 deg C. Data are given on the zeta phase, monocarbide, and sesquicarbide in the Pu-- C phase diagrams, and on the other Pu systems: Pu--C--N, Pu--C--O, Pu-In, Pu-- N, and Pu-- rare earth. The status of the Core Test Facility (Phase A and B) is outiined. (D.L.C.).

Download or read book Report of the Task Force on AEC Plutonium Fuels Capability written by J. B. Burnham and published by . This book was released on 1963 with total page 126 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Reactor Core Materials written by and published by . This book was released on 1961 with total page 324 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Reactor Technology written by Leonard E. Link and published by . This book was released on 1964 with total page 636 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Quarterly Status Report on Lampre Program for Period Ending November 20 1960 written by and published by . This book was released on 1960 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: A decision was made to begin fabrication for the initial core loading of LAMPRE-1 with capsules from the tantalum on hand. Fuel for the first loading will be the cast Fe--Pu alloy from LCX III capsules and will contain carbon and stabilizer. Certification and melt-freeze tests are continuing on LAMPRE type capsules. The filling of the reactor sodium system is described. The cover gas system operated satisfactorily during the sodium shakedown phase. Four of the 15 core thermocouples have operated improperly since the sodium system was filled. The capsule charges were operated to remove dummy capsules and insert tantalum capsules containing test coupons. The 2000-kw Sodium Test Facility, including test steam generator, was operated continuously from Aug. 20 to Nov. 20, except for l59 hr of shutdown required for maintenance of auxiliary steam system equipment. Mercury-water flow systems were set up and are being operated to study both lift and jet pumping. A second fuel pumping experiment using Co --Ce - -Pu fuel was set up and tried without success. The effects of various additives on the properties of Fe-Pu fuels are being studied. The fabrication of LAMPRE-1 capsules by impact-extruding a rod-slug into a starting cup followed by six ironing stages is described. Materials that were corrosion tested as fabricated capsules include arcmelted and electron-beann-melted high-purity tantalum and Ta-- 0.1 wt.% W alloy. Corrosion tests are in progress on experimental deep-drawn capsules made from Ta --0.1 wt. % W--0.2 wt. % Y. An x-ray fluorescence spectrographic method was developed for determining hafnium in Ta--Hf and Ta--W- Hf alloys. Work is in progress on the development of a solvent extraction method for the recovery of plutonium residues from various pyrometallurgical processes. (For preceding period see LAMS-2462.) (W.L.H.).

Download or read book List written by and published by . This book was released on 1948 with total page 564 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Quarterly Status Report on Lampre Program for Period Ending February 20 1963 written by and published by . This book was released on 1963 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Operation of LAMPRE I is summarized, and predictions of power and temperature transients by a new Fortran code (LTC) are compared favorably with experimental results. LAMPRE fuel capsules were metallographically examined and revealed Na attack of weld metal surfaces as well as intergranular penetration of Pu-fuel in the heataffected zone of the welds. New techniques were developed for fabricating capsules. Several alloys were investigated. Corrosion tests of Ce-- Co--Pu alloys in Ta showed an increase in C content to reduce Ta/sub 6/Co/sub 7/ layer formation. High Co contents in Ce-- Co alloy produced an increased Co- Ta film growth. Tests on yttrium capsules containing Mn--U and Mn-- Pu--U alloys showed the Pu to increase the corrosion resistance of Y to Mn--U fuels. Methods for fabricating and preparing plutonium alloys were developed. Status of the core test facility is reported. Several Pu alloy systems were also examined, mainly to gain information on phase relations in Pu alloys. Decomposition, lattice parameters, solubility, phase diagrams, and formation reactions were among the examined properties of the C-O--Pu, Eu--Pu, La-- Pu, N-- Pu, Pr--Pu, Pu- Sc, and Pu--Y systems treated. (D.C.W.).