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[No title] $ shade $in0 npts= 4 npts2=0 iMark=0 iType=' ' iShdPat=45331 $ curve LMFBR (middle) $in0 npts=5 xcrv(1)= 6.0, 14.0, 14.0, 6.0, 6.0 ycrv(1)= 49.0, 57.0, 66.2 66.2, 49.0 cThkNss=0.03 iType=' ' Tensn=-1. iTxtJus=3 xAlign=0.5 yAlign=0.5 lMess='LMFBR$' $ arrow LMFBR $in0 iArr(1)= 0, 0 xArr(1)= 75., 40. iVec=0201 $ arrow LMFBR $in0 iArr(1)= 0, 0 xArr(1)= 105., 140. aries.ucsd.edu /LIB/REPORT/ARIES-1/FIGURE/chap01.plt   (2564 words)

LMFBR   (Site not responding. Last check: 2007-10-31) The LMFBR is the only breeder, which has reached a stage of practical commercialisation anywhere in the world. This means that the reactor is fuelled with bred isotopes of plutonium in the core or driver, and the blanket is natural or depleted uranium. All LMFBRs utilise two sodium loops: the primary reactor loop carrying radioactive sodium, and an intermediate sodium loop containing nonradiactive sodium. www.nuke.hun.edu.tr /~lo/lmfbr.html   (373 words)

[No title] LMFBR plants operate on the steam cycle, that is, the heat from the reactor is ultimately utilized to produce steam in steam generators. All LMFBRs have two sodium loops: the primary reactor loop carrying radioactive sodium, and an intermediate sodium loop containing nonradioactive sodium, which carries the heat from the primary loop via an intermediate heat exchanger to the steam generator. The core of an LMFBR consists of an array of fuel assemblies, which are hexagonal stainless steel cans 10 to 15 cm across and 3 or 4m long that contain the fuel and fertile material in the form of long pins. www.nuc.berkeley.edu /thyd/ne161/shir/project5.html   (1465 words)

Fast Breeder Reactors In the breeding of plutonium fuel in breeder reactors, an important concept is the breeding ratio, the amount of fissile plutonium-239 produced compared to the amount of fissionable fuel (like U-235) used to produced it. In the liquid-metal, fast-breeder reactor (LMFBR), the target breeding ratio is 1.4 but the results achieved have been about 1.2. Liquid sodium is used as the coolant and heat-transfer medium in the LMFBR reactor. hyperphysics.phy-astr.gsu.edu /hbase/nucene/fasbre.html   (744 words)

Ford Foundation: Nuclear Power Issues and Choices - 220 Had the U.S. LMFBR program adopted the pool-type design, used in the U.S. research reactor and the French Phenix reactor, in which the entire primary cooling loop is immersed in liquid sodium, a break would have even less significance. In summary, the most serious threat to safety in the LMFBR will arise from an excursion in reactivity leading to a situation that cannot be controlled by the control rods or that is accompanied by control rod failure. As in the case of the LWR, an LMFBR accident involves breaching a series of safety barriers designed to absorb excess mechanical energy and to limit consequences. www.fordfound.org /elibrary/documents/0335/231.cfm   (799 words)

Ford Foundation: Nuclear Power Issues and Choices - 219 In some areas the comparative safety advantages of the LMFBR and the LWR are not as yet clear. Another set of safety considerations inherent in the LMFBR stems from the large quantities of liquid sodium used for cooling. Finally, in assessing the potential consequences of an LMFBR accident, one must take into account the fact that an LMFBR may have an inventory of several tons of plutonium, in contrast to the maximum of several hundred kilograms in an LWR. www.fordfound.org /elibrary/documents/0335/230.cfm   (598 words)

RAND | Notes | Some implications of the Three Mile Island accident for LMFBR safety and licensing : the design basis ... The 1979 accident at the Three Mile Island Unit-2 (TMI-2) nuclear generating plant prompted numerous studies identifying relevant safety issues and recommending both short term and long term fixes to improve the general safety of the light water reactor. The DBA is an artificial "boundary" separating those "credible" accidents which are considered in the licensing process from those "incredible" ones which are not. This Note assesses the impact of the TMI-2 on the safety of the LMFBR and arrives at specific design and policy recommendations. www.rand.org /pubs/notes/N1559   (346 words)

Nuclear Power (LMFBR)   (Site not responding. Last check: 2007-10-31) Its main drawbacks are its chemical reactivity with air and water and the high level of radioactivity induced in it in the reactor. Some of the difficulties associated with the plants are simply a result of the natural growing pains of any new technology. LMFBRs maximize the production of plutonium, but that is no longer the desired result. web.bryant.edu /~langlois/ems/nuclear.html   (493 words)

Experts' Questions & Answers 1998   (Site not responding. Last check: 2007-10-31) The project was cast as a cooperative government-industry commercialization venture, with the participation of all segments of the utility industry and management was vested in a utility-led corporation. Justification for a demonstration LMFBR was based on projected increases in the price of uranium fuel for the nation’s existing light water power reactors (LWRs) that would cause the price of nuclear electric power to become prohibitive. By the late 1970s, moreover, the breeder and nuclear power became embroiled in partisan political and ideological debates over proliferation of nuclear weapons and the prospect of a domestic “plutonium economy.” Escalation of the cost of the CRBR project fed the controversy further. www.itc.org /wcl98/wcl_a4.htm   (1121 words)

The Molten Salt Hybrid A number of accident scenarios that are considered quite serious with the LMFBR are either impossible or relatively minor affairs with the MSHR, for several reasons. The MSHR is significantly subcritical because it depends on the neutron flux from the plasma to sustain operation. It should be noted that the results of in-reactor tests conducted in both England and France showed the LMFBR to be intrinsically safe because of the large sodium heat sink's ability to remove after-heat by natural convection if pumps failed. www.cs.indiana.edu /~hagerp/FFhybrid.html   (3432 words)

Nuclear power - Voyager, the free encyclopedia   (Site not responding. Last check: 2007-10-31) A CWR is similar to a BWR, except there is no boiling (as the water is critical), and the thermal efficiency is higher as the water behaves more like a classical gas. Liquid Metal Fast Breeder Reactor (LMFBR): This is a reactor design that is cooled by liquid metal, and totaly unmoderated. The sodium is relatively easy to obtain and work with, and it also manages to actually remove corrosion on the various reactor parts immersed in it. www.voyager.in /Nuclear_power   (7660 words)

[No title] Modules simulated and parameters calculated include: core flow rates and temperatures, loop flow rates and temperatures, pump performance, and heat exchanger operation. Input is free format in a modular structure that makes use of abstract data management techniques. The simulation of an entire LMFBR is, by its very nature, complex. www-rsicc.ornl.gov /codes/psr/psr4/psr-400.html   (432 words)

[No title]   (Site not responding. Last check: 2007-10-31) The President said he was com- mitting this country to further develop- ment, improvements and upgrading of nuclear power plants, which many ex- perts believe could make up for any future energy shortages. Admittedly, the President last year announced he was giving the highest civilian priority to research and develop- ment of the Liquid Metal Fast Breeder Reactor (LMFBR) which when in oper- ation could provide electricity for "the masses." However, that step was but a long range initiative. The LMFBR is still in the earliest research stages, and re- searchers report having trouble with sev- eral pre-prototype designs. www-tech.mit.edu /archives/VOL_093/TECH_V093_S0427_P004.txt   (1677 words)

Nuclear Energy: Society's Salvation or Doom?   (Site not responding. Last check: 2007-10-31) The result has been the growth of widespread misconceptions as to nuclear power in general and the LMFBR in particular. While there are legitimate bases for the disparity of opinions existing with regard to the development of nuclear power, no useful purpose is served by the current emotional nature of the debate. It is our purpose here to provide some of the basic data for such a comparison regarding the LMFBR Nuclear Energy vs. Nuclear Weapons The question of development of the LMFBR is really only the tip of the iceberg in the nuclear debate. www.heritage.org /Research/EnergyandEnvironment/bg-8.cfm   (3693 words)

LMFBR LMFBR : Liquid Metal Fast Breeder Reactor [Environmental Protection Agency] Factors in CCC Interface Formats for Fusion and LMFBR Neutronics. ...fluid-dynamic behavior of an LMFBR during a hypothetical core-disruptive accident. www.mongabay.com /reference/environment/LMFBR.html   (190 words)

Working Materials (IWGFR--59): IWGFR specialists' meeting on LMFBR fuel rod behaviour under operational transients. ... IWGFR specialists' meeting on LMFBR fuel rod behaviour under operational transients. IWGFR Specialists' Meeting on ''LMFBR Fuel Rod Behaviour Under Operational Transients'' was held in Indira Gandhi Centre for Atomic Research (IGCAR), Kalpakkam during 3-6 December 1985. The purpose of the meeting was to provide a forum for the exchange of information on the subject of LMFBR Fuel Rod Behaviour Under Operational Transients. www.iaea.org /inis/aws/fnss/twgfr/abstracts/wmat_59.html   (310 words)

Working Materials (IWGFR--21): Specialists Meeting on LMFBR Flow Induced Vibrations Argonne, Illinois, USA, ... A Specialists' Meeting on LMFBR Flow-Induced Vibrations was held at ANL in the United States which was sponsored by the International Atomic Energy Agency (IAEA) on the recommendations of the International Working Group on Fast Reactors (IWGFR). It was attended by participants from France, the Federal Republic of Germany, Italy, Japan, Netherlands, the United Kingdom, the Union of Soviet Socialist Republics, the United States and the IAEA. A session was devoted to each of the above topics wherein papers were presented and discussed followed by open discussions on the session topic. www.iaea.org /inis/aws/fnss/twgfr/abstracts/wmat_21.html   (458 words)

NSDL Metadata Record -- 105-DR Large Sodium Fire Facility closure plan. Revision 1 The 105-DR Large Sodium Fire Facility (LSFF), which was in operation from about 1972 to 1986, was a research laboratory that occupied the former ventilation supply room on the southwest side of the 105-DR Reactor facility. The LSFF was established to provide a means of investigating fire and safety aspects associated with large sodium or other metal alkali fires in the liquid metal fast breeder reactor (LMFBR) facilities. The 105-DR Reactor facility was designed and built in the 1950`s and is located in the 100-D Area of the Hanford Site. nsdl.org /mr/1070805   (305 words)

Studies On Accelerator-Driven Transmutation Systems (SMEALSearch) - Pal,Rangaswamy,Giles,Debnath   (Site not responding. Last check: 2007-10-31) Research and development on transmutation of long-lived radioactive nuclides are being carried out with an emphasis placed on the dedicated accelerator-driven systems at the Japan Atomic Energy Research Institute (JAERI) under the Japanese long-term program for research and development on partitioning and transmutation technology (OMEGA Programme). Concurrently with the study on the sodium-cooled system, we made a preliminary design study of leadbismuth cooled system as an option. 0.4: Characteristics of TRU Transmutation in an LMFBR - Yamaoka Ishikawa And gunther.smeal.psu.edu /104952.html   (232 words)

[No title] Material Reliability is required in high temperature and corrosive environment. pressure vessel inspections, pump inspections, etc.) - Problems with LMFBR world-wide have been due to tube fail ures in Intermediate Heat Exchanger and the steam generator. - The highly hostile environment of LMFBR causes profound chemical and microstructural changes in fuel and cladding. web.umr.edu /~kumar/ne341/chapter1.html   (2157 words)

Nuclear   (Site not responding. Last check: 2007-10-31) Liquid Metal Fast Breeder Reactor (LMFBR): This is a reactor design that is cooled by liquid metal, and totally unmoderated. In this case, the bismuth would present some minor radiation problems, as it is not quite as transparent to neutrons, and can be transmuted to a radioactive isotope more readily than lead. Sodium Cooled: Most LMFBRs are of this type. www.ienergyinc.com /nuclear.htm   (8711 words)

ANS : Store : Electronic Articles The experimental fast reactor JOYO at the O-arai Engineering Center of the Japan Nuclear Cycle Development Institute is the first liquid sodium fast reactor in Japan. The purpose of constructing JOYO was to obtain technical information about liquid-metal fast breeder reactors (LMFBRs) through experience with their design, construction, and operation and to use the reactor as a fast neutron irradiation facility for the development of fuels, materials, and other components required for the LMFBR program. In addition to providing operating experience, many kinds of irradiation tests have been conducted for the development of fuels and materials under the conditions of higher fast neutron flux and temperature than those in light water reactors. www.ans.org /store/index.cgi?i=E120000-nt-150-1-16-36   (262 words)

Argonne News 11/08/99 The sodium-bonded fuel is left over from decades of research and development on the liquid-metal-cooled fast breeder reactor (LMFBR), a nuclear reactor designed to Congress ended the LMFBR program in 1994, but the spent fuel remains and must be disposed of safely. When the LMFBR fuel was manufactured, a thin layer of metallic sodium was placed between the fuel and cladding (the stainless-steel fuel casing) to improve heat transfer. www.anl.gov /Media_Center/Argonne_News/news99/an991108.html   (2169 words)

NUCLEAR   (Site not responding. Last check: 2007-10-31) There are several reactor (power plant) types including (1) pressurized water reactors (PWRs), (2) boiling water reactors (BWRs), (3) liquid-metal fast breeder reactor (LMFBR), (4) high temperature gas-cooled reactors (HTGRs), and (5) heavy water reactors (CANDU). The LWRs use thermal neutrons (<0.1 eV) to sustain the chain reaction whereas reactors like the LMFBR use high-energy (>1 MeV) neutrons. Thermal reactors are easier to control than fast reactors and in some designs (e.g., CANDU) can use natural uranium. www.eas.asu.edu /~holbert/eee463/NUCLEAR.HTML   (441 words)

Analysis of Tube failure Propagation due to Overheating in a Prototype LMFBR Steam-Generator Geometry by Using QUARK-LP ...   (Site not responding. Last check: 2007-10-31) Analysis of Tube failure Propagation due to Overheating in a Prototype LMFBR Steam-Generator Geometry by Using QUARK-LP Ver.4 A computer code QUARK-LP had been developed to analyze the failure phenomena of steam generator heat-transfer tubes due to overheating in a liquid-metal cooled fast breeder reactor (LMFBR). In the new version, Version 4, the previous very pessimistic assumption which considers that the highest temperature continues all over the reaction zone has been modified and the reaction zone was divided into three parts depending on the location from the failed tube. www3.inspi.ufl.edu /icapp04/program/abstracts/4039.html   (182 words)

Jones (1984) Multiphase processes in LMFBR safety analysis: Lectures from a course held at the Joint Research Centre, ... Jones (1984) Multiphase processes in LMFBR safety analysis: Lectures from a course held at the Joint Research Centre, Ispra (Italy), 29 March-2 April 1982 Multiphase processes in LMFBR safety analysis: Lectures from a course held at the Joint Research Centre, Ispra (Italy), 29 March-2 April 1982 There are no citations on file at this time. www.getcited.org /?PUB=102301411&showStat=Citations   (81 words)

TARO Profesional Profile LMFBR Steam Generator Materials Selection, Development and Test Results, with Spalaris, Patriarca and Hoffman, Presented at the joint US/USSR Steam Generator Conference in Los Angeles, CA. Progress of LMFBR Steam Generator Testing in the United States, ANS International Conference, Richland WA. The Transfer of Applicable PWR Steam Generator Technology to Advanced Reactors ASME June 1984 PVP Conference, San Antonio, TX. www.tarorigin.com /ppr/ed.html   (560 words)

RAND | Papers | Comments on LMFBR Cost-Benefit Analysis. In March 1975, Robert C. Seamans, Jr., administrator of the Energy Research and Development Administration, requested Donald Rice, president of RAND, to provide a review of the cost-benefit analysis contained in the Proposed Final Environmental Impact Statement (PFEIS) on the liquid metal fast breeder reactor (LMFBR) program. The three-part response, in letter form, reviews important assumptions and projections, examines the role of cost-benefit analysis as a decisionmaking tool, and gives guides for future policy. Among the findings: (1) Capital cost differentials between LMFBR and light water reactors are likely to be substantially higher than $100/kW. www.rand.org /pubs/papers/P5498   (352 words)

DPI Technical Council Member - Dr. Mario Fontana Initiated and managed the Liquid Breeder Reactor (LMFBR) Thermal Hydraulic out of Reactor Safety (THORS) Program, involving extensive analytical and highly instrumented experimental work to determine the capability of sodium cooled LMFBR fuel to withstand power and flow transients, including sodium boiling. Initiated and managed the LMFBR Aerosol Release and Transport Program to determine experimentally and analytically the behavior of aerosols in containment buildings in the event of accidents. Assisted in the technical direction of the entire program, which included fission product release and transport; development of containment spray systems, fuel rod failure investigation, fission product filtration and absorption technology, and fast reactor heat transfer. www.dpi-inc.com /tc/mario_fontana_resume.html   (1722 words)

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