Evaluation of MHTGR fuel reliability

Cover of: Evaluation of MHTGR fuel reliability |

Published by Division of Engineering, Office of Nuclear Regulatory Research, U.S. Nuclear Regulatory Commission, Supt. of Docs., U.S. G.P.O. [distributor] in Washington, DC .

Written in English

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Subjects:

  • Gas cooled reactors.,
  • Nuclear fuels.

Edition Notes

Book details

Statementprepared by R.P. Wichner, W.P. Barthold.
ContributionsU.S. Nuclear Regulatory Commission. Office of Nuclear Regulatory Research. Division of Engineering., Oak Ridge National Laboratory.
The Physical Object
FormatMicroform
Paginationxv, 57 p.
Number of Pages57
ID Numbers
Open LibraryOL17678936M

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Get this from a library. Evaluation of MHTGR fuel reliability. [R P Wichner; U.S. Nuclear Regulatory Commission. Office of Nuclear Regulatory Research. Division of. In response to the U.S. Nuclear Regulatory Commission's Advanced Reactor Policy Statement the U.S.

Department of Energy has sponsored the development of the modular high-temperature gas-cooled reactor (MHTGR) in the United by:   The fuel of the NP-MHTGR as well as other coated fuel designed in the US have incurred significantly greater failure percentages than are predicted considering just the pressure vessel failures of a one-dimensional code, indicating that other mechanisms contribute to failure of the by: Recently, Proton Exchange Membrane Fuel Cells (PEMFCs) become one of the most promising friendly renewable energy sources.

Therefore, developing a mathematical model for the PEMFC is an urgent necessity for simulation and evaluation of the processes occurring inside the fuel cell (FC) stack. The Modular High-Temperature Gas-Cooled Reactor (MHTGR) is an advanced reactor concept being developed under a cooperative program involving the U.S.

Cited by: 3. With regard to the achievement of US Nuclear Regu- latory Commission (NRC) criteria for the accomplish- ment of Goal 1 and 2 functions, measures are taken in the design of the Standard MHTGR, to use inherent /88/$ Elsevier Science Publishers B.V.

(North-Holland Physics Publishing Division) F.A. Silady et al. / Safety and Cited by: 5. Fuel Reliability Program research and development for will focus on a number of remaining fuel reliability gaps, including the continuing threat of foreign materials, the effects of new water chemistry regimes on fuel reliability, development of non-destructive examination equipment, and fuel reliability training.

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This reminds of the well-known saying “The chain is as weak as its weakest link“ (which, however, does not consider that several components. The performance stability and reliability of the power generation systems will be improved through the implementation of advanced materials and fabrication processes.

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The book is a guide to the theoretical. The single pebble unit cell, shown in Fig. 1, represents a pebble with a given burnup and with number-densities provided for the main actinides and fission reflective boundary condition implies that it is surrounded by the same fuel type.

The unit cell for the MHTGR prismatic design is likewise defined, as shown in Fig. specifications include number density and. The Modular High-Temperature Gas-Cooled Reactor (MHTGR) is an advanced reactor concept being developed under a cooperative program involving the US Government, the utilities and the nuclear industry.

This plant design utilizes basic High Temperature Gas-Cooled Reactor (HTGR) features of ceramic fuel, helium coolant, and a graphite moderator. The crucial inherent safety feature is guaranteed by the low power density and the slim shape of the reactor core [1,2,3], which makes the MHTGR meet and exceed current nuclear standards in reliability, waste management and safety.

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The MHTGR design approach leading to exceptional safety performance also leads to plant operation which is characterized by extremely low radiological emissions even for very low probability accidents.

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