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The adsorption of fission products on VHTR structural materials
(University of Missouri--Columbia, 2010)
The Very High Temperature Reactor (VHTR) is being considered as a candidate for the next generation of nuclear reactors. There are several areas that require further study in VHTR reactor designs. One such area is the adsorption of fission products...
Thermal-hydraulic optimization for high production of low-enriched uranium based molybdenum-99
(University of Missouri--Columbia, 2009)
. In an attempt to address the growing demand, as well as to motivate the current reactors to stop using high-enriched uranium, the University of Missouri Research Reactor (MURR) has begun to produce molybdenum-99 using low-enriched uranium. The fission of uranium...
Development of MURR flux trap model for simulation and prediction of sample loading reactivity worth and isotope production
(University of Missouri--Columbia, 2007)
University of Missouri Research Reactor (MURR) is the highest power university research reactor in America. It has been supplying various radioisotopes for more than 20 years. The flux trap, locating in the center island tube, has the highest flux...
Maximum hypothetical accident analysis for HEU to LEU fuel conversion at the University of Missouri Research Reactor
(University of Missouri--Columbia, 2014)
Exploration of supercritical water gasification of biomass using batch reactor
(University of Missouri--Columbia, 2011)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT REQUEST OF AUTHOR.] The focus of this study is on gasification of a biomass in supercritical water. Vapor mass yield in a batch reactor after 20 minutes in a 700[degrees]C furnace in air...
Total hemispherical emissivity of very high temperature reactor (VHTR) candidate materials : Hastelloy X, Haynes 230, and Alloy 617
(University of Missouri--Columbia, 2011)
An experimental system was constructed in accordance with the standard ASTM C835-06 to measure the total hemispherical emissivity of structural materials of interest in Very High Temperature Reactor (VHTR) systems. The system was tested with 304...
Membrane wastewater treatment processes for improved nutrient removal and degradation of synthetic organic nitrogen compounds
(University of Missouri--Columbia, 2011)
water quality. The main objective of this research is to investigate cost-effective and efficient environmental technologies such as membrane bioreactors (MBR) and membrane aerated biofilm reactors (MABR) for improved nitrogen removal and recalcitrant...
Transport of helium and fission product gases in porous/fractured geometry
(University of Missouri--Columbia, 2012)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT AUTHOR'S REQUEST.] Measuring and quantifying the transport of helium and fission products in reactor materials is a critical element in the future success of Very High Temperature Reactors (VHTR...
Generation of graphite particles by rotational/spinning abrasion and their characterization
(University of Missouri--Columbia, 2011)
Graphite particle generation by inter-pebble abrasion and by abrasion of pebbles with the containment vessel during operation of a Pebble Bed Reactor (PBR) is an issue of interest in the safety analysis of this class of Very High Temperature Reactor...
Solutions of some transport problems in molecular and phonon transport
(University of Missouri--Columbia, 2012)
Nuclear reactor fuel undergoes vast changes during its lifetime. The fuel generates heat energy while simultaneously suffering neutron bombardments and swelling/rupture due to fission product/gas migration, aggregation and buildup. Ingenious...
Hydrogen production from biomass
(University of Missouri--Columbia, 2006)
process variables such as cell concentration, light intensity, and reactor design and b) immobilizing the algal cells to increase photosynthetic efficiency and address production limitations. The second method of hydrogen production explored...
Supercritical water gasification of waste residues
(University of Missouri--Columbia, 2013)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT AUTHOR'S REQUEST.] A batch reactor was built in the University of Missouri Carbon Recycling Center to explore the thermo-chemical conversion of motor oil as a model compound, in supercritical water...
Hydro-mechanical analysis of low enriched uranium fuel plates for University of Missouri Research Reactor
(University of Missouri--Columbia, 2012)
As part of the Global Threat Reduction Initiative (GTRI) Reactor Conversion program, work is underway to analyze and validate a new fuel assembly for the University of Missouri Research Reactor (MURR). The Low Enriched Uranium (LEU) design currently...
Fuel depletion analyses at the Missouri University Research Reactor
(University of Missouri--Columbia, 2006)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT REQUEST OF AUTHOR.] In developing, assembling and updating safety analysis cases for nuclear power and research reactors, fuel depletion plays a major role and ultimately leads to the calculation...
Production of propylene oxide from propylene glycol
(University of Missouri--Columbia, 2007)
The primary goal of this research was to find a renewable synthesis method for the production of propylene oxide. Significant quantities of glycerin are formed as a co-product when soybean oil is used to produce bio-diesel. This glycerin can be used...
The design & construction of a proton microprobe using a GE PETtrace cyclotron
(University of Missouri--Columbia, 2012)
internals. Unfortunately, there are very few facilities where extreme fast neutron fluences, approximately 300 displacements per atom, can be reasonably achieved. Research at the University of Missouri Research Reactor (MURR) Cyclotron has focused...
Uncertainty analysis of steady-state calorimetric emissivity measurements
(University of Missouri--Columbia, 2017)
Determining the accuracy and uncertainty in total hemispherical emissivity data is important in the uncertainty quantification of predictive models using radiant heat transfer. Very High Temperatures Reactors (VHTR) are intended to passively remove...
The continuous supercritical water gasification of spirulina and the use of a positive displacement feeding system
(University of Missouri--Columbia, 2012)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT REQUEST OF AUTHOR.] A factorial experiment was designed and conducted to explore the effect of three variables, concentration, temperature, and residence time, on two responses, gasification...
Surface characterization and measurements of adhesion force between graphite clustered particles and Hastelloy X surface using an atomic force microscope
(University of Missouri--Columbia, 2011)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT REQUEST OF AUTHOR.] This work reports preliminary results on the determination of the adhesion forces between a graphite cluster probe and Hastelloy X samples having different surface conditions...
Optimization of aeration schemes and motor and blower usage for wastewater treatment
(University of Missouri--Columbia, 2010)
This thesis discusses the control of aeration schemes on a lab sized sequencing batch reactor used for biological wastewater treatment. The focus was changing aeration schemes for two lab reactors and determining which might work best for full scale...