TITLE

Square lattice honeycomb reactor for space power and propulsion

AUTHOR(S)
Gouw, Reza; Anghaie, Samim
PUB. DATE
January 2000
SOURCE
AIP Conference Proceedings;2000, Vol. 504 Issue 1, p1518
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
The most recent nuclear design study at the Innovative Nuclear Space Power and Propulsion Institute (INSPI) is the Moderated Square-Lattice Honeycomb (M-SLHC) reactor design utilizing the solid solution of ternary carbide fuels. The reactor is fueled with solid solution of 93% enriched (U,Zr,Nb)C. The square-lattice honeycomb design provides high strength and is amenable to the processing complexities of these ultrahigh temperature fuels. The optimum core configuration requires a balance between high specific impulse and thrust level performance, and maintaining the temperature and strength limits of the fuel. The M-SLHC design is based on a cylindrical core that has critical radius and length of 37 cm and 50 cm, respectively. This design utilized zirconium hydrate to act as moderator. The fuel sub-assemblies are designed as cylindrical tubes with 12 cm in diameter and 10 cm in length. Five fuel subassemblies are stacked up axially to form one complete fuel assembly. These fuel assemblies are then arranged in the circular arrangement to form two fuel regions. The first fuel region consists of six fuel assemblies, and 18 fuel assemblies for the second fuel region. A 10-cm radial beryllium reflector in addition to 10-cm top axial beryllium reflector is used to reduce neutron leakage from the system. To perform nuclear design analysis of the M-SLHC design, a series of neutron transport and diffusion codes are used. To optimize the system design, five axial regions are specified. In each axial region, temperature and fuel density are varied. The axial and radial power distributions for the system are calculated, as well as the axial and radial flux distributions. Temperature coefficients of the system are also calculated. A water submersion accident scenario is also analyzed for these systems. Results of the nuclear design analysis indicate that a compact core can be designed based on ternary uranium carbide square-lattice honeycomb fuel, which provides a rela...
ACCESSION #
5985176

 

Related Articles

  • Direct Estimation of Power Distribution in Reactors for Nuclear Thermal Space Propulsion. Aldemir, Tunc; Miller, Don W.; Burghelea, Andrei // AIP Conference Proceedings;2004, Vol. 699 Issue 1, p582 

    A recently proposed constant temperature power sensor (CTPS) has the capability to directly measure the local power deposition rate in nuclear reactor cores proposed for space thermal propulsion. Such a capability reduces the uncertainties in the estimated power peaking factors and hence...

  • Space Fission System Test Effectiveness. Houts, Mike; Schmidt, Glen L.; Van Dyke, Melissa; Godfroy, Tom; Martin, James; Bragg-Sitton, Shannon; Dickens, Ricky; Salvail, Pat; Harper, Roger // AIP Conference Proceedings;2004, Vol. 699 Issue 1, p673 

    Space fission technology has the potential to enable rapid access to any point in the solar system. If fission propulsion systems are to be developed to their full potential, however, near-term customers need to be identified and initial fission systems successfully developed, launched, and...

  • Estimation of Specific Mass for Multimegawatt NEP Systems Based on Vapor Core Reactors with MHD Power Conversion. Knight, Travis; Anghaie, Samim // AIP Conference Proceedings;2004, Vol. 699 Issue 1, p379 

    Very low specific-mass power generation in space is possible using Vapor Core Reactors with Magnetohydrodynamic (VCR/MHD) generator. These advanced reactors at the conceptual design level have potential for the generation of tens to hundreds of megawatts of power in space with specific mass of...

  • Comparison of Methods for Evaluating Nuclear Thermal Propulsion Tie-Tube Designs. Kapernick, Richard J.; Dixon, David D. // AIP Conference Proceedings;1/21/2008, Vol. 969 Issue 1, p430 

    One of the fundamental structural components in a nuclear thermal rocket design is the tie tube. Proper cooling and flow modeling is important both for the structural integrity of the reactor core and for proper design of downstream components that operate on the hydrogen exiting the tie tube....

  • Advanced Thermal Simulator Testing: Thermal Analysis and Test Results. Bragg-Sitton, Shannon M.; Dickens, Ricky; Dixon, David; Reid, Robert; Adams, Mike; Davis, Joe // AIP Conference Proceedings;1/21/2008, Vol. 969 Issue 1, p403 

    Work at the NASA Marshall Space Flight Center seeks to develop high fidelity, electrically heated thermal simulators that represent fuel elements in a nuclear reactor design to support non-nuclear testing applicable to the potential development of a space nuclear power or propulsion system....

  • NASA studies thermal upper stage. Proctor, Paul // Aviation Week & Space Technology;9/15/1997, Vol. 147 Issue 11, p71 

    Focuses on the efforts of the US National Aeronautics and Space Administration (NASA) to investigate solar thermal propulsion to help reduce space vehicle weights, complexity and cost. Initial trials of prototype engine hardware planned for the fall of 1997; Description of the flight...

  • Cutting costs in space propulsion. Lardier, Christian // Interavia Business & Technology;Jun/Jul96, Vol. 51 Issue 601, p46 

    Reports that the continuing quest to reduce space vehicles launching cost brings United States and Russian propulsion specialists together. American specialists development of cryogenic designs; Europe cross-border alliance on civil space programs; Possible venture in propulsion in France;...

  • Hypersonic personal space travel.  // Futurist;Nov/Dec95, Vol. 29 Issue 6, p40 

    Reports that researchers at Rensselaer Polytechnic Institute are testing a propulsion system, known as Air Spike, designed to dramatically increase a spacecraft's speed while eliminating bulky, dangerous tanks of chemical fuel. Features of the Air Spike; Hypersonic shock-tunnel tests; Three...

  • Utilizing fission technology to enable rapid and affordable access to any point in the solar system. Houts, Mike; Bonometti, Joe; Morton, Jeff; Hrbud, Ivana; Bitteker, Leo; Van Dyke, Melissa; Godfroy, Tom; Pedersen, Kevin; Dobson, Chris; Patton, Bruce; Martin, James; Chakrabarti, Suman // AIP Conference Proceedings;2000, Vol. 504 Issue 1, p1182 

    Fission technology can enable rapid, affordable access to any point in the solar system. Potential fission-based transportation options include bimodal nuclear thermal rockets, high specific energy propulsion systems, and pulsed fission propulsion systems. In-space propellant re-supply enhances...

Share

Read the Article

Courtesy of THE LIBRARY OF VIRGINIA

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics