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Saturday, November 28, 2020 | History

2 edition of Dissolution in HTGR fuel reprocessing found in the catalog.

Dissolution in HTGR fuel reprocessing

H. H Yip

Dissolution in HTGR fuel reprocessing

  • 178 Want to read
  • 36 Currently reading

Published by The Office, for sale by the National Technical Information Service] in [Oakland, Calif.], [Springfield, Va .
Written in English

    Subjects:
  • Gas cooled reactors,
  • Reactor fuel reprocessing

  • Edition Notes

    Statementreport written by H. H. Yip, L. J. Olguin ; prepared under contract EY-76-C-03-0167, project agreement no. 53 for the San Francisco Operations Office, Department of Energy
    SeriesGA-A ; 15092
    ContributionsOlguin, L. J., joint author, General Atomic Company, United States. Dept. of Energy. San Francisco Operations Office
    The Physical Object
    Paginationv. :
    ID Numbers
    Open LibraryOL14879580M

    • Reprocessing facilities including facilities to chop highly radioactive fuel rods into small pieces, dissolve the fuel in acid, and extract plutonium from the radioactive liquid process streams. • Spent fuel storage (temporary or permanent) including facilities to cool the discharged fuel. File Size: 1MB. Using light water as coolant requires some enrichment of the fuel, thus a fuel enrichment of 2% U with % Dy in natural uranium in the central fuel element in the bundle is proposed SEU. IAEA-TECDOC Thorium fuel utilization: Options and trends Proceedings of three IAEA meetings held in Vienna in , and November The originating Section of this publication in the IAEA was: Nuclear Power Technology Development Section International Atomic Energy IAEA Wagramer Strasse 5 P.O. Box A Vienna, Austria THORIUM FUEL UTILIZATION: OPTIONS AND 5/5(3). Nuclear fuel transfer for reprocessing, pending cases: hearings before the Subcommittee on International Economic Policy and Trade of the Committee on International Relations, House of Representatives, Ninety-fifth Congress, second session, September 26 and October 3, (Washington: U.S. Govt. Print. Off., ), by United States. Congress.

    Nuclear warfare (sometimes atomic warfare or thermonuclear warfare) is a military conflict or political strategy in which nuclear weaponry is used to inflict damage on the enemy. Nuclear weapons are weapons of mass destruction; in contrast to conventional warfare, nuclear warfare can produce destruction in a much shorter time and can have a long-lasting radiological warfare result.


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Dissolution in HTGR fuel reprocessing by H. H Yip Download PDF EPUB FB2

COVID Resources. Reliable information about the coronavirus (COVID) is available from the World Health Organization (current situation, international travel).Numerous and frequently-updated resource results are available from this ’s WebJunction has pulled together information and resources to assist library staff as they consider how to handle coronavirus.

As a result, it is also established that the dissolution rate of HTGR fuel is a function of the entire history of the fuel as well as of the operating parameters of the dissolver; i.e., HTGR fuel preparation and reprocessing methods can affect fuel particle size, density, etc., Dissolution in HTGR fuel reprocessing book in turn affect fuel dissolution rate.

The separation of /sup /U and /sup /U in the reprocessing of HTGR fuels is a key feature of the feed-breed fuel cycle concept. This is attained in the Fort St.

Vrain (FSV) reactor by coating the fissile (Th-/sup /U) particles and the fertile (Th-/sup /U) particles separately with silicon carbide (SiC) layers to contain the fission products and to protect the kernels from burning in.

In India, reprocessing of aluminum-clad thorium fuel has been carried out on fuel irradiated in the CIRUS reactor. The reprocessing of these rods, which had been irradiated to a level up to kg Dissolution in HTGR fuel reprocessing book U per ton of thorium, and cooled for more than two years, was made in a pilot-scale test facility at BARC and at the IGCAR (Anantharaman et Cited by: 1.

Download Citation | Application of Supercritical Fluid Extraction in Reprocessing of Spent Nuclear Fuel | PUREX process is used in the reprocessing of spent nuclear fuel (SNF) for many years. But.

Procedia Chemistry 7 () – The Authors. Published by Elsevier B.V. Selection and /or peer-review under responsibility of the Chairman of the ATALANTA Program Committee doi: / ATALANTE International Conference on Nuclear Chemistry for Sustainable Fuel Cycles Possible options for uranium-carbide SNF processing D.V.

Cited by: 5. reprocessing and refabrication of fuel. The protactinium formed in thorium fuel cycle also cause some problems, which need to be suitably resolved. The information on thorium and thorium fuel cycles has been well covered in the IAEA-TECDOC (May ) File Size: 1MB.

The principal gaseous wastes in reprocessing of fuel elements from high-temperature gas-cooled reactors (HTR's) arise from the burning head-end step, from the fuel dissolution operation, from the. In the HTGR fuel particles (UC 2 or ThO,), 10 Ci of '~C/ GW(e)-ir will be formed from 25 ppm of nitrogen.

whereas "0 in the ThO, will contribute an additional 2 Cli GW(e)-yr. All I~C contained in the fuels may be released in a gas mixture (CO. CH~, etc.) during fuel.

Nuclear fuel is material used in nuclear power stations to produce heat to power is created when nuclear fuel undergoes nuclear fission.

Most nuclear fuels contain heavy fissile actinide elements that are capable of undergoing and sustaining nuclear three most relevant fissile isotopes are uranium, uranium and plutonium This book presents the state of the art on thermophysical and thermochemical properties, fabrication methodologies, irradiation behaviours, fuel reprocessing procedures, and aspects of waste management for oxide fuels in general and for thoria-based fuels in particular.

Recently Viewed. Biochemistry. Cyclization of a Cytolytic Amphipathic α-Helical Peptide and Its Diastereomer: Effect on Structure, Interaction with Model Membranes, and Biological Function.

EPA/J TRANSPORTATION ACCIDENT RISKS IN THE NUCLEAR POWER INDUSTRY OFFICE OF RADIATION PROGRAMS US. chemical reprocessing plants, fuel fabrication facilities and waste repositories. Flow in Typical LWR Fuel Cycle With 26 Plutonium Recycle 9 Material Flow in Typical HTGR Fuel Cycle 27 10 Material Flow in Typical LMFBR.

The safe, secure, reliable and economic management of spent fuel arising from nuclear power reactors is key for the sustainable utilization of nuclear energy and covers many technological aspects related to the storage, transportation, recycling and disposal of the spent fuel and the high level waste (HLW) generated from spent fuel reprocessing.

The sustainability of nuclear energy involves. B Cladding Hulls and Fuel Bundle Residues Cladding hulls and fuel bundle residues arise during mechanical chopping and eventual dissolution of fuel bundles or fuel rods at the initial stages of reprocessing.

The dissolution step leaves these hulls slightly contaminated with. A simultaneously “nuclear”, permanent, and in‐time solution to mankind's energy‐related problems would require the relatively rapid manufacture of 10,–30, genuinely sustainable, full‐sized (~1 GW e) “nuclear renaissance” would have to be implemented with breeder reactors because today's commercial nuclear fuel cycle is unsustainable and based upon a fuel Cited by: 3.

78 INTERNATIONALIZATION OF THE NUCLEAR FUEL CYCLE TABLE Reactor Types, Fuel Types, and Purposes of Fuel Reprocessing in the Thorium Fuel Cycle Stages of Reactor type, fuel Fuel Purpose of reprocessing Thorium Fuel accommodation blanket and core fuel Cycle Metallic Th Blanket Extraction of U BN ThO2 Stage 1 Core MOX Recovery of NPhP.

Nuclear fission reactors: potential role and risks of converters and breeders. /Plutonium Fuel Cycle.- Reprocessing Spent UO2 Fuel Elements.- LWR Fuel Element Disassembly and Spent Fuel Dissolution.- Gas Cleaning and Retention of Gaseous Fission Products.- Chemical Separation of Uranium and Plutonium.- Such systems require many components: spent-fuel reprocessing plants, waste transmutation facilities with systems to remove heat and (optionally) convert it into electricity, fuel fabrication plants, processing plants for the wastes from the separations and transmutation processes, sites for eventual disposal of the low-level radioactive waste.

In the HTGR fuel particles (UC. or ThO.), 10 Ci of lJC/ CW(e)-yr will be formed from 25 ppm of nitrogen, whereas in the Ih02 will contribute am additional 2 Ci/CW(e)-yr. All "C: contained in the fuels may be released in a gas mixture (CC92, CO, CHJ, etc.) during fuel dissolution at.

Safety and economics of uranium utilization for nuclear power generation were investigated and discussed. In order to sustain energy supply with nuclear power generation, uranium resources should be abundant.

From the viewpoint of depletion of the resources, fast breeder reactor (FBR), which is breeder reactor of plutonium, has been by: 1.

FOIA denial, Octo for Savannah River Nuclear Solutions documents on H-Canyon – prepared by the main contractor at SRS and thus paid for by tax payers out of the management contract – these documents should be released: – “H-Canyon High Level Waste Minimization Plan,” August ; – “Near-Term Experimental plan to Address Used Fuel Dissolution in H-Canyon,” April.

A simultaneously “nuclear”, permanent, and in-time solution to mankinds energy-related problems would require the relatively rapid manufacture of 10, –30, genuinely sustainable, full-sized (~1 GWe) reactors.

This “nuclear renaissance” would have to be implemented with breeder reactors because todays commercial nuclear fuel cycle is unsustainable and based upon a fuel (U Cited by: 3.

In the FRG a mixed thorium/uranium oxide with 93 % enriched uranium was the reference fuel for High Temperature Gas-cooled Reactors up to•" (1)• Non-proliferation aspects, envisaged difficulties in the long-term supply of high enriched uranium plus expected R&D cost savings when utilizing PUREX technologies in spent fuel reprocessing.

Nuclear warfare (sometimes atomic warfare or thermonuclear warfare) is a military conflict or political strategy in which nuclear weaponry is used to inflict damage on the enemy. Nuclear weapons are weapons of mass destruction ; in contrast to conventional warfare, nuclear warfare can produce destruction in a much shorter time and can have a.

Thorium fuel cycle options Because thorium itself does not contain a fissile isotope, neutrons must be initially provided by adding a fissile material, either within or outside the ThO2 itself.

How the neutrons are initially provided defines a variety of thorium fuel cycle options in HWRs that will be examined in this section. A technique for tritium measurement in irradiated fuel pins A.

Terzaghi, P. Henrion, and G. Koch CEN Mol Introduction Acknowledgments Preliminary experiments in collecting and measuring tritium liberated from irradiated oxide fuel pins, during puncture test, have been performed.

The standard "official" list of tests for American devices is arguably the United States Department of Energy DoE document. [5] The United States conducted around 1, nuclear tests (by official count) between andincluding atmospheric, underwater, and space tests. [9] Some significant tests conducted by the United States include.

Brooks LH () HTGR [high temperature gas reactor] fuel reprocessing: head-end treatment of experimental small scale HTGR fuel elements. Gulf Gen. The ‘back end’ of the nuclear fuel cycle includes (5) used fuel storage, (6) reprocessing (see Appendix 4a), and (9) radioactive waste management and disposal.

This volume focuses on nine topics of relevance to the nuclear power industry. Chapters cover: pressurised water reactors, boiling water reactors, fuel elements, advanced gas reactors, high temperature reactors, liquid metal fast breeders, fusion reactors, reprocessing and waste management.

The range of the envelope is shown to enlarge considerably by selecting high refractory fuel. High temperature gas-cooled reactor (HTGR), a graphite-moderated reactor with TRISO coated fuel particle, is the primary candidate which can fulfill the requirement to the design concept of nuclear reactor independent of coolant for decay heat removal.

Nuclear Fuel Reprocessing Nuclear fuel reprocessing is an important technology for both the uranium and thorium fuel cycles in order to increase available resources while minimizing waste.

The uranium and plutonium reprocessing methods are well developed, though they deserve continued improvement in proliferation resistance and waste disposal.

The first International Conference on Fast Reactors and Related Fuel Cycles (FR09) was held in Kyoto, Japan, in and was subtitled “Challenges and Opportunities”.

The second conference (FR13) was held in Paris, France, in with the theme “Safe Technologies and Sustainable Scenarios” and was attended by some experts from 27 countries and 4 international organizations. The purpose of this handbook is contribution to development of the fuel reprocessing and fuel cycle technology for uranium fuel and mixed oxide fuel utilization.

Contents in this book was discussed and reviewed by specialists of science and technology on fuel reprocessing in Japan. The following is a list of states that have admitted the possession of nuclear weapons or are presumed to possess them, the approximate number of warheads under their control, and the year they tested their first weapon and their force configuration.

This list is informally known in global politics as the "Nuclear Club". [16] [17] With the exception of Russia and the United States (which have. A multidisciplinary reference for forensic scientists, this book consolidates fundamental principles of nuclear forensic analysis, pertinent protocols and procedures, computer modeling development, interpretational insights, and attribution considerations into one convenient source.

John A. Shanahan, Corresponding Author Detroit St.; Denver, Colorado Tel. ; E-mail: [email protected] 1 of 34 February 1, Dr. John P. Holdren Director, Office of Science & Technology Policy, Executive Office of the President Washington, D.C. (by e. This book reviews key issues in their development as well as international R&D in the field.

Gives an overview of small modular reactor technology Reviews the design characteristics of integral pressurized water reactors and focuses on reactor core and fuel technologies, key reactor system components, instrumentation and control, human-system. Once the fuel assemblies have decayed sufficiently to be cooled passively by air, the fuel assemblies might be moved to storage casks for onsite or offsite storage to await processing.

Direct transfer to a reprocessing facility (Modules F1 or F2/D2, depending on whether aqueous or electrochemical fuel reprocessing is used) is also Size: 3MB. A Study of fuel failure behavior in high burnup HTGR fuel; Analysis by STRESS3 and STAPLE codes.

Martin, D. G.*;Sawa, Kazuhiro;Ueta, Shohei;Sumita, Junya JAERI-Research May 19P. Study on storage and reprocessing concept of the High Temperature Engineering Test Reactor (HTTR) fuel. (In Japanese) reprocessing, hot fuel fabrication, and waste conditioning.

In FYwe recognized gaps in understanding the uncertainties associated with various financing schemes (i.e., private versus government financing) and subsequently performed further data gap analysis in FY In FY ,File Size: 11MB.You can write a book review and share your experiences.

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