Process Design and Economics for the Conversion of Lignocellulosic Biomass to Hydrocarbon Fuels: Fast Pyrolysis and Hydrotreating Bio-Oil Pathway (open access)

Process Design and Economics for the Conversion of Lignocellulosic Biomass to Hydrocarbon Fuels: Fast Pyrolysis and Hydrotreating Bio-Oil Pathway

This report describes a proposed thermochemical process for converting biomass into liquid transportation fuels via fast pyrolysis followed by hydroprocessing of the condensed pyrolysis oil. As such, the analysis does not reflect the current state of commercially-available technology but includes advancements that are likely, and targeted to be achieved by 2017. The purpose of this study is to quantify the economic impact of individual conversion targets to allow a focused effort towards achieving cost reductions.
Date: November 1, 2013
Creator: Jones, Susanne B.; Meyer, Pimphan A.; Snowden-Swan, Lesley J.; Padmaperuma, Asanga B.; Tan, Eric; Dutta, Abhijit et al.
Object Type: Report
System: The UNT Digital Library
Hanford Tank Waste to WIPP - Maximizing the Value of our National Repository Asset - 14230 (open access)

Hanford Tank Waste to WIPP - Maximizing the Value of our National Repository Asset - 14230

Preplanning scope for the Hanford tank transuranic (TRU) waste project was authorized in 2013 by the Department of Energy (DOE) Office of River Protection (ORP) after a project standby period of eight years. Significant changes in DOE orders, Hanford contracts, and requirements at the Waste Isolation Pilot Plant (WIPP) have occurred during this time period, in addition to newly implemented regulatory permitting, re-evaluated waste management strategies, and new commercial applications. Preplanning has identified the following key approaches for reactivating the project: qualification of tank inventory designations and completion of all environmental regulatory permitting; identifying program options to accelerate retrieval of key leaking tank T-111; planning fully compliant implementation of DOE Order 413.3B, and DOE Standard 1189 for potential on-site treatment; and re-evaluation of commercial retrieval and treatment technologies for better strategic bundling of permanent waste disposal options.
Date: November 11, 2013
Creator: Tedeschi, Allan R. & Wheeler, Martin
Object Type: Article
System: The UNT Digital Library
Water Management Strategies for Improved Coalbed Methane Production in the Black Warrior Basin (open access)

Water Management Strategies for Improved Coalbed Methane Production in the Black Warrior Basin

The modern coalbed methane industry was born in the Black Warrior Basin of Alabama and has to date produced more than 2.6 trillion cubic feet of gas and 1.6 billion barrels of water. The coalbed gas industry in this area is dependent on instream disposal of co-produced water, which ranges from nearly potable sodium-bicarbonate water to hypersaline sodium-chloride water. This study employed diverse analytical methods to characterize water chemistry in light of the regional geologic framework and to evaluate the full range of water management options for the Black Warrior coalbed methane industry. Results reveal strong interrelationships among regional geology, water chemistry, and gas chemistry. Coalbed methane is produced from multiple coal seams in Pennsylvanian-age strata of the Pottsville Coal Interval, in which water chemistry is influenced by a structurally controlled meteoric recharge area along the southeastern margin of the basin. The most important constituents of concern in the produced water include chlorides, ammonia compounds, and organic substances. Regional mapping and statistical analysis indicate that the concentrations of most ionic compounds, metallic substances, and nonmetallic substances correlate with total dissolved solids and chlorides. Gas is effectively produced at pipeline quality, and the only significant impurity is N{sub 2}. Geochemical analysis …
Date: October 31, 2013
Creator: Pashin, Jack; McIntyre-Redden, Marcella; Mann, Steven & Merkel, David
Object Type: Report
System: The UNT Digital Library
WTP Calculation Sheet: Determining the LAW Glass Former Constituents and Amounts for G2 and Acm Models. 24590-LAW-M4C-LFP-00002, Rev. B (open access)

WTP Calculation Sheet: Determining the LAW Glass Former Constituents and Amounts for G2 and Acm Models. 24590-LAW-M4C-LFP-00002, Rev. B

The purpose of this calculation is to determine the LAW glass former recipe and additives with their respective amounts. The methodology and equations contained herein are to be used in the G2 and ACM models until better information is supplied by R&T efforts. This revision includes calculations that determines the mass and volume of the bulk chemicals/minerals needed per batch. Plus, it contains calculations (for the G2 model) to help prevent overflow in LAW Feed Preparation Vessel.
Date: December 16, 2013
Creator: Gimpel, Rodney F. & Kruger, Albert A.
Object Type: Report
System: The UNT Digital Library
Final Technical Report for the Neutron Detection without Helium-3 Project (open access)

Final Technical Report for the Neutron Detection without Helium-3 Project

This report details the results of the research and development work accomplished for the ‘Neutron Detection without Helium-3’ project conducted during the 2011-2013 fiscal years. The primary focus of the project was to investigate commercially available technologies that might be used in safeguards applications in the relatively near term. Other technologies that are being developed may be more applicable in the future, but were outside the scope of this study.
Date: November 1, 2013
Creator: Ely, James H.; Bliss, Mary; Kouzes, Richard T.; Lintereur, Azaree T.; Robinson, Sean M.; Siciliano, Edward R. et al.
Object Type: Report
System: The UNT Digital Library
Site Environmental Report for 2012 Sandia National Laboratories California. (open access)

Site Environmental Report for 2012 Sandia National Laboratories California.

None
Date: May 1, 2013
Creator: Larsen, Barbara L.
Object Type: Report
System: The UNT Digital Library
A micro to macro approach to polymer matrix composites damage modeling : final LDRD report. (open access)

A micro to macro approach to polymer matrix composites damage modeling : final LDRD report.

Capabilities are developed, verified and validated to generate constitutive responses using material and geometric measurements with representative volume elements (RVE). The geometrically accurate RVEs are used for determining elastic properties and damage initiation and propagation analysis. Finite element modeling of the meso-structure over the distribution of characterizing measurements is automated and various boundary conditions are applied. Plain and harness weave composites are investigated. Continuum yarn damage, softening behavior and an elastic-plastic matrix are combined with known materials and geometries in order to estimate the macroscopic response as characterized by a set of orthotropic material parameters. Damage mechanics and coupling effects are investigated and macroscopic material models are demonstrated and discussed. Prediction of the elastic, damage, and failure behavior of woven composites will aid in macroscopic constitutive characterization for modeling and optimizing advanced composite systems.
Date: December 1, 2013
Creator: English, Shawn Allen; Brown, Arthur A. & Briggs, Timothy M.
Object Type: Report
System: The UNT Digital Library
Building a Road from Light to Energy (open access)

Building a Road from Light to Energy

Representing the Center for Solar and Thermal Energy Conversion (CSTEC), this document is one of the entries in the Ten Hundred and One Word Challenge. As part of the challenge, the 46 Energy Frontier Research Centers were invited to represent their science in images, cartoons, photos, words and original paintings, but any descriptions or words could only use the 1000 most commonly used words in the English language, with the addition of one word important to each of the EFRCs and the mission of DOE energy. The mission of the Center for Solar and Thermal Energy Conversion (CSTEC) is to design and to synthesize new materials for high efficiency photovoltaic (PV) and thermoelectric (TE) devices, predicated on new fundamental insights into equilibrium and non-equilibrium processes, including quantum phenomena, that occur in materials over various spatial and temporal scales.
Date: July 18, 2013
Creator: Li, Anton; Bilby, David; Barito, Adam & Vyletel, Brenda
Object Type: Text
System: The UNT Digital Library
Q-value (MeV/fission) Determination for the Advanc (open access)

Q-value (MeV/fission) Determination for the Advanc

This report documents a step-by-step calculation p
Date: October 1, 2013
Creator: Sterbentz, Jim
Object Type: Report
System: The UNT Digital Library
Partial return yoke for MICE - Engineering design (open access)

Partial return yoke for MICE - Engineering design

N/A
Date: September 29, 2013
Creator: Witte, H.; Plate, S.; Tarrant, J. & Bross, A.
Object Type: Article
System: The UNT Digital Library
ARPA-E Program: Advanced Management Protection of Energy Storage Devices (AMPED) - Fifth Quarterly Project Report - FY14 Q1 (open access)

ARPA-E Program: Advanced Management Protection of Energy Storage Devices (AMPED) - Fifth Quarterly Project Report - FY14 Q1

None
Date: December 17, 2013
Creator: Farmer, J
Object Type: Report
System: The UNT Digital Library
Cultural Resource Investigations for the Resumption of Transient Testing of Nuclear Fuels and Material at the Idaho National Laboratory (open access)

Cultural Resource Investigations for the Resumption of Transient Testing of Nuclear Fuels and Material at the Idaho National Laboratory

The U. S. Department of Energy (DOE) has a need to test nuclear fuels under conditions that subject them to short bursts of intense, high-power radiation called ‘transient testing’ in order to gain important information necessary for licensing new nuclear fuels for use in U.S. nuclear power plants, for developing information to help improve current nuclear power plant performance and sustainability, for improving the affordability of new generation reactors, for developing recyclable nuclear fuels, and for developing fuels that inhibit any repurposing into nuclear weapons. To meet this mission need, DOE is considering alternatives for re-use and modification of existing nuclear reactor facilities to support a renewed transient testing program. One alternative under consideration involves restarting the Transient Reactor Test (TREAT) reactor located at the Materials and Fuels Complex (MFC) on the Idaho National Laboratory (INL) site in southeastern Idaho. This report summarizes cultural resource investigations conducted by the INL Cultural Resource Management Office in 2013 to support environmental review of activities associated with restarting the TREAT reactor at the INL. These investigations were completed in order to identify and assess the significance of cultural resources within areas of potential effect associated with the proposed action and determine if the …
Date: November 1, 2013
Creator: Pace, Brenda R. & Williams, Julie B.
Object Type: Report
System: The UNT Digital Library
Managing A Product Called NIF - PLM Current State And Processes (open access)

Managing A Product Called NIF - PLM Current State And Processes

None
Date: September 24, 2013
Creator: Dobson, D.; Churby, A. & Krieger, E.
Object Type: Article
System: The UNT Digital Library
Air-Cooled Condensers for Next Generation Geotherm (open access)

Air-Cooled Condensers for Next Generation Geotherm

This report summarizes the efforts performed under
Date: September 1, 2013
Creator: Mines, Gregory L. & Wendt, Daniel S.
Object Type: Report
System: The UNT Digital Library
Cost-Benefit Analysis of Flexibility Retrofits for Coal and Gas-Fueled Power Plants: August 2012 - December 2013 (open access)

Cost-Benefit Analysis of Flexibility Retrofits for Coal and Gas-Fueled Power Plants: August 2012 - December 2013

High penetrations of wind and solar power plants can induce on/off cycling and ramping of fossil-fueled generators. This can lead to wear-and-tear costs and changes in emissions for fossil-fueled generators. Phase 2 of the Western Wind and Solar Integration Study (WWSIS-2) determined these costs and emissions and simulated grid operations to investigate the full impact of wind and solar on the fossil-fueled fleet. This report studies the costs and benefits of retrofitting existing units for improved operational flexibility (i.e., capability to turndown lower, start and stop faster, and ramp faster between load set-points).
Date: December 1, 2013
Creator: Venkataraman, S.; Jordan, G.; O'Connor, M.; Kumar, N.; Lefton, S.; Lew, D. et al.
Object Type: Report
System: The UNT Digital Library
Final Report - Crystal Settling, Redox, and High Temperature Properties of ORP HLW and LAW Glasses, VSL-09R1510-1, Rev. 0, dated 6/18/09 (open access)

Final Report - Crystal Settling, Redox, and High Temperature Properties of ORP HLW and LAW Glasses, VSL-09R1510-1, Rev. 0, dated 6/18/09

The radioactive tank waste treatment programs at the U. S. Department of Energy (DOE) have featured joule heated ceramic melter technology for the vitrification of high level waste (HLW). The Hanford Tank Waste Treatment and Immobilization Plant (WTP) employs this same basic technology not only for the vitrification of HLW streams but also for the vitrification of Low Activity Waste (LAW) streams. Because of the much greater throughput rates required of the WTP as compared to the vitrification facilities at the West Valley Demonstration Project (WVDP) or the Defense Waste Processing Facility (DWPF), the WTP employs advanced joule heated melters with forced mixing of the glass pool (bubblers) to improve heat and mass transport and increase melting rates. However, for both HLW and LAW treatment, the ability to increase waste loadings offers the potential to significantly reduce the amount of glass that must be produced and disposed and, therefore, the overall project costs. This report presents the results from a study to investigate several glass property issues related to WTP HLW and LAW vitrification: crystal formation and settling in selected HLW glasses; redox behavior of vanadium and chromium in selected LAW glasses; and key high temperature thermal properties of representative …
Date: November 13, 2013
Creator: Kruger, Albert A.; Wang, C.; Gan, H.; Pegg, I. L.; Chaudhuri, M.; Kot, W. et al.
Object Type: Report
System: The UNT Digital Library
Recommendations and Justifications To Remove Use Restrictions Established under the U.S. Department of Energy, National Nuclear Security Administration Nevada Field Office Federal Facility Agreement and Consent Order, Revision 0 (open access)

Recommendations and Justifications To Remove Use Restrictions Established under the U.S. Department of Energy, National Nuclear Security Administration Nevada Field Office Federal Facility Agreement and Consent Order, Revision 0

This document is part of an effort to reevaluate 37 FFACO and Administrative URs against the current Soils Risk-Based Corrective Action Evaluation Process. After reviewing 37 existing FFACO and Administrative URs, 3 URs addressed in this document have sufficient information to determine that these current URs may be removed, based on the RBCA criteria. This document presents recommendations on modifications to existing URs that will be consistent with the RBCA criteria.
Date: September 1, 2013
Creator: Birney, Cathleen & Krauss, Mark J
Object Type: Report
System: The UNT Digital Library
Downscaling Solar Power Output to 4-Seconds for Use in Integration Studies: Preprint (open access)

Downscaling Solar Power Output to 4-Seconds for Use in Integration Studies: Preprint

High penetration renewable integration studies require solar power data with high spatial and temporal accuracy to quantify the impact of high frequency solar power ramps on the operation of the system. Our previous work concentrated on downscaling solar power from one hour to one minute by simulation. This method used clearness classifications to categorize temporal and spatial variability, and iterative methods to simulate intra-hour clearness variability. We determined that solar power ramp correlations between sites decrease with distance and the duration of the ramp, starting at around 0.6 for 30-minute ramps between sites that are less than 20 km apart. The sub-hour irradiance algorithm we developed has a noise floor that causes the correlations to approach ~0.005. Below one minute, the majority of the correlations of solar power ramps between sites less than 20 km apart are zero, and thus a new method to simulate intra-minute variability is needed. These intra-minute solar power ramps can be simulated using several methods, three of which we evaluate: a cubic spline fit to the one-minute solar power data; projection of the power spectral density toward the higher frequency domain; and average high frequency power spectral density from measured data. Each of these methods …
Date: October 1, 2013
Creator: Hummon, M.; Weekley, A.; Searight, K. & Clark, K.
Object Type: Article
System: The UNT Digital Library
Physics with Rare Isotope Beams (open access)

Physics with Rare Isotope Beams

Using stable and radioactive beams provided by ATLAS nuclear reactions of special interest in astrophysics have been studied with emphasis on breakout from the hot CNO cycle to the rp-process. The masses of nuclear fragments provided by a strong fission source have been measured in order to help trace the path of the r process. 8Li ions produced by the d(7Li,8Li)n reaction have been trapped and the electrons and alphas emitted in the ensuing beta-decay measured. The neutrino directions were therefore determined, which leads to a measurement of the electron-neutrino correlation. The energies and kinematics are such that a sensitive search for any tensor admixture could be performed and an upper limit of 0.6% was placed on any such admixture. Earlier work on the electromagnetic form factors of the proton was extended. Graduate students were active participants in all of these eperiments, which formed the basis for six PhD theses.
Date: November 8, 2013
Creator: Segel, Ralph E.
Object Type: Report
System: The UNT Digital Library
Regulatory cross-cutting topics for fuel cycle facilities. (open access)

Regulatory cross-cutting topics for fuel cycle facilities.

This report overviews crosscutting regulatory topics for nuclear fuel cycle facilities for use in the Fuel Cycle Research&Development Nuclear Fuel Cycle Evaluation and Screening study. In particular, the regulatory infrastructure and analysis capability is assessed for the following topical areas:<U+F0B7>Fire Regulations (i.e., how applicable are current Nuclear Regulatory Commission (NRC) and/or International Atomic Energy Agency (IAEA) fire regulations to advance fuel cycle facilities)<U+F0B7>Consequence Assessment (i.e., how applicable are current radionuclide transportation tools to support risk-informed regulations and Level 2 and/or 3 PRA) While not addressed in detail, the following regulatory topic is also discussed:<U+F0B7>Integrated Security, Safeguard and Safety Requirement (i.e., how applicable are current Nuclear Regulatory Commission (NRC) regulations to future fuel cycle facilities which will likely be required to balance the sometimes conflicting Material Accountability, Security, and Safety requirements.)
Date: October 1, 2013
Creator: Denman, Matthew R.; Brown, Jason; Goldmann, Andrew Scott & Louie, David
Object Type: Report
System: The UNT Digital Library
Development, experimental performance and damage properties of x-ray optics for the LCLS free-electron laser (open access)

Development, experimental performance and damage properties of x-ray optics for the LCLS free-electron laser

None
Date: October 30, 2013
Creator: Soufli, R & Al, E T
Object Type: Article
System: The UNT Digital Library
Automatic Alignment of the Advanced Radiographic Capability for the National Ignition Facility (open access)

Automatic Alignment of the Advanced Radiographic Capability for the National Ignition Facility

None
Date: September 20, 2013
Creator: Wilhelmsen, K.; Bliss, E.; Brunton, G.; Fishler, B.; Heebner, J.; Lowe-Webb, R. et al.
Object Type: Article
System: The UNT Digital Library
Low Enriched Uranium Core Design for the Massachusetts Institute of Technology Reactor (MITR) with Un-finned 12 mil-thick Clad UMo Monolithic Fuel (open access)

Low Enriched Uranium Core Design for the Massachusetts Institute of Technology Reactor (MITR) with Un-finned 12 mil-thick Clad UMo Monolithic Fuel

None
Date: December 5, 2013
Creator: Bergeron, A.; Wilson, E. H.; Yesilyurt, G.; Dunn, F. D.; Stevens, J. G.; Hu, L. et al.
Object Type: Report
System: The UNT Digital Library
Preliminary Scaling and controls Analysis of an FHR-HTSE System Idaho National Laboratory Summer 2013 Final Report (open access)

Preliminary Scaling and controls Analysis of an FHR-HTSE System Idaho National Laboratory Summer 2013 Final Report

For new nuclear reactor system designs to be approved by regulatory agencies like the Nuclear Regulatory Commission (NRC), the details of system operation must be validated with respect to standards of safety, control, and output. A scaled experiment that replicates certain properties of the system can be used to validate compliance with regulatory standards, while avoiding the prohibitive cost and labor required to develop a fully functional prototype system; therefore, designing such an experiment is of special interest to current efforts to develop hybrid energy systems (HES) that integrate small modular reactors (SMRs), renewable energy systems, and industrial process applications such as hydrogen production and desalination. In addition, a scaled experiment can be an economical method of analyzing the interconnections between HES components and understanding the time constants associated between inter-component energy and information flows. This report discusses the results of a preliminary scaling analysis done for the primary loop of a 300 MWth Fluoride-Salt-Cooled High Temperature Reactor (FHR) that is coupled with a High-Temperature Steam Electrolysis system (HTSE), as well as the basic control logic that governs the primary components and the necessary hardware to achieve optimal functionality. The scaled facility will be a 1 MWth system that uses …
Date: August 1, 2013
Creator: Bragg-Sitton, Shannon; Sabharwall, Piyush & Upadhya, Rohit
Object Type: Report
System: The UNT Digital Library