Playing Hot and Cold: How Can Russian Heat Policy Find Its Way Toward Energy Efficiency? (open access)

Playing Hot and Cold: How Can Russian Heat Policy Find Its Way Toward Energy Efficiency?

The Russian district heating has a large energy-saving potential, and, therefore, need for investments. The scale of needed investments is significant: the government estimates that 70 percent of the district heating infrastructure needs replacement or maintenance, a reflection of decades of under investment. Government budgets will be unable to cover them, and iInvolvingement ofthe private industry will be critical to attracting the necessary investementis necessary. For private parties to invest in district heating facilities across Russia, and not only in pockets of already successful enterprises, regulators have to develop a comprehensive policy that works district heating systems under various conditionscost-reflective tariffs, metering, incentives for efficiency and social support for the neediest (instead of subsidies for all).
Date: September 15, 2012
Creator: Roshchanka, Volha & Evans, Meredydd
Object Type: Report
System: The UNT Digital Library
Recent T980 Crystal Collimation Studies at the Tevatron Exploiting a Pixel Detector System and a Multi-Strip Crystal Array (open access)

Recent T980 Crystal Collimation Studies at the Tevatron Exploiting a Pixel Detector System and a Multi-Strip Crystal Array

With the shutdown of the Tevatron, the T-980 crystal collimation experiment at Fermilab has been successfully completed. Results of dedicated beam studies in May 2011 are described in this paper. For these studies, two multi-strip crystals were installed in the vertical goniometer and an O-shaped crystal installed in a horizontal goniometer. A two-plane CMS pixel detector was also installed in order to enhance the experiment with the capability to image the profile of crystal channeled or multiple volume reflected beam. The experiment successfully imaged channeled beam from a crystal for 980-GeV protons for the first time. This new enhanced hardware yielded impressive results. The performance and characterization of the crystals studied have been very reproducible over time and consistent with simulations.
Date: May 15, 2012
Creator: Still, D.; Annala, G. E.; Carrigan, R. A.; Drozhdin, A. I.; Johnson, T. R.; Mokhov, N. V. et al.
Object Type: Article
System: The UNT Digital Library
Coherent electron cooling proof of principle instrumentation design (open access)

Coherent electron cooling proof of principle instrumentation design

The goal of the Coherent Electron Cooling Proof-of-Principle (CeC PoP) experiment being designed at RHIC is to demonstrate longitudinal (energy spread) cooling before the expected CD-2 for eRHIC. The scope of the experiment is to longitudinally cool a single bunch of 40 GeV/u gold ions in RHIC. This paper will describe the instrumentation systems proposed to meet the diagnostics challenges. These include measurements of beam intensity, emittance, energy spread, bunch length, position, orbit stability, and transverse and temporal alignment of electron and ion beams.
Date: April 15, 2012
Creator: M., Gassner D.; Litvinenko, V.; Michnoff, R.; Miller, T.; Minty, M. & Pinayev, I.
Object Type: Article
System: The UNT Digital Library
EVALUATION AND RECOMMENDATION OF SALTSTONE MIXER AUGER/PADDLES MATERIALS OF CONSTRUCTION FOR IMPROVED WEAR RESISTANCE (open access)

EVALUATION AND RECOMMENDATION OF SALTSTONE MIXER AUGER/PADDLES MATERIALS OF CONSTRUCTION FOR IMPROVED WEAR RESISTANCE

Wear and corrosion testing were conducted to evaluate alternate materials of construction for the Saltstone mixer auger and paddles. These components have been degraded by wear from the slurry processed in the mixer. Material test options included PVD coatings (TiN, TiCN, and ZrN), weld overlays (Stellite 12 and Ultimet) and higher hardness steels and carbides (D2 and tungsten carbide). The corrosion testing demonstrated that the slurry is not detrimental to the current materials of construction or the new candidates. The ASTM G75 Miller wear test showed that the high hardness materials and the Stellite 12 weld overlay provide superior wear relative to the Astralloy and CF8M stainless steel, which are the current materials of construction, as well as the PVD coatings and Ultimet. The following recommendations are made for selecting new material options and improving the overall wear resistance of the Saltstone mixer components: A Stellite 12 weld overlay or higher hardness steel (with toughness equivalent to Astralloy) be used to improve the wear resistance of the Saltstone mixer paddles; other manufacturing specifications for the mixer need to be considered in this selection. The current use of the Stellite 12 weld overlay be evaluated so that coverage of the 316 …
Date: August 15, 2012
Creator: Mickalonis, J. & Torres, R.
Object Type: Report
System: The UNT Digital Library
Minimization of Blast furnace Fuel Rate by Optimizing Burden and Gas Distribution (open access)

Minimization of Blast furnace Fuel Rate by Optimizing Burden and Gas Distribution

The goal of the research is to improve the competitive edge of steel mills by using the advanced CFD technology to optimize the gas and burden distributions inside a blast furnace for achieving the best gas utilization. A state-of-the-art 3-D CFD model has been developed for simulating the gas distribution inside a blast furnace at given burden conditions, burden distribution and blast parameters. The comprehensive 3-D CFD model has been validated by plant measurement data from an actual blast furnace. Validation of the sub-models is also achieved. The user friendly software package named Blast Furnace Shaft Simulator (BFSS) has been developed to simulate the blast furnace shaft process. The research has significant benefits to the steel industry with high productivity, low energy consumption, and improved environment.
Date: August 15, 2012
Creator: Zhou, Chenn
Object Type: Report
System: The UNT Digital Library
Individual Reactions of Permanganate and Various Reductants - Student Report to the DOE ERULF Program for Work Conducted May to July 2000 (open access)

Individual Reactions of Permanganate and Various Reductants - Student Report to the DOE ERULF Program for Work Conducted May to July 2000

Tank waste on the Hanford Site contains radioactive elements that need to be removed from solution prior to disposal. One effective way to do this is to precipitate the radioactive elements with manganese solids, produced by permanganate oxidation. When added to tank waste, the permanganate reacts quickly producing manganese (IV) dioxide precipitate. Because of the speed of the reaction it is difficult to tell what exactly is happening. Individual reactions using non-radioactive reductants found in the tanks were done to determine reaction kinetics, what permanganate was reduced to, and what oxidation products were formed. In this project sodium formate, sodium nitrite, glycolic acid, glycine, and sodium oxalate were studied using various concentrations of reductant in alkaline sodium hydroxide solutions. It was determined that formate reacted the quickest, followed by glycine and glycolic acid. Oxalate and nitrite did not appear to react with the permanganate solutions. The products of the oxidation reaction were examined. Formate was oxidized to carbonate and water. Glycolic acid was oxidized slower producing oxalate and water. Glycine reactions formed some ammonia in solution, oxalate, and water. The research reported by Amber Gauger in this report was part of a DOE ERULF student intern program at Pacific Northwest …
Date: September 15, 2012
Creator: Gauger, Amber M. & Hallen, Richard T.
Object Type: Report
System: The UNT Digital Library
Extending MC-SURE to Denoise Sensor Data Streams (open access)

Extending MC-SURE to Denoise Sensor Data Streams

None
Date: November 15, 2012
Creator: Ndoye, M. & Kamath, C.
Object Type: Article
System: The UNT Digital Library
Error Field Correction in DIII-D Ohmic Plasmas with Either Handedness (open access)

Error Field Correction in DIII-D Ohmic Plasmas with Either Handedness

The expression for the overlap, Equation (1) in the published article at Nuclear Fusion 51 (2011) 023003, was incorrect and should be replaced by (SEE PAPER)
Date: June 15, 2012
Creator: J..K. Park, M.J. Schaffer, R.J. LaHaye, T.J. Scoville, and J.E. Menard
Object Type: Report
System: The UNT Digital Library
Kansas Energy and Cost Savings for New Single- and Multifamily Homes: 2009 and 2012 IECC as Compared to the 2006 IECC (open access)

Kansas Energy and Cost Savings for New Single- and Multifamily Homes: 2009 and 2012 IECC as Compared to the 2006 IECC

The 2009 and 2012 International Energy Conservation Codes (IECC) yield positive benefits for Kansas homeowners. Moving to either the 2009 or 2012 IECC from the 2006 IECC is cost effective over a 30-year life cycle. On average, Kansas homeowners will save $2,556 over 30 years under the 2009 IECC, with savings still higher at $8,828 with the 2012 IECC. After accounting for upfront costs and additional costs financed in the mortgage, homeowners should see net positive cash flows (i.e., cumulative savings exceeding cumulative cash outlays) in 1 year for both the 2009 and 2012 IECC. Average annual energy savings are $155 for the 2009 IECC and $543 for the 2012 IECC.
Date: June 15, 2012
Creator: Lucas, Robert G.; Taylor, Zachary T.; Mendon, Vrushali V. & Goel, Supriya
Object Type: Report
System: The UNT Digital Library
Laboratory Study of Hall Reconnection in Partially Ionized Plasmas (open access)

Laboratory Study of Hall Reconnection in Partially Ionized Plasmas

The effects of partial ionization (ni/nn ≤ 1%) on magnetic reconnection in the Hall regime have been studied systematically in the Magnetic Reconnection Experiment (MRX). It is shown that, when neutrals are added the Hall quadrupole field pattern and thus electron flow is unchanged while the ion outflow speed is reduced due to ion-neutral drag. However, in constrast to theoretical predictions, the ion diffusion layer width does not change appreciably. Therefore, the total ion outflow flux and the normalized reconnection rate are reduced.
Date: May 15, 2012
Creator: Eric E. Lawrence, Hanto Ji, Masaaki Yamaada and Jongsoo Yoo
Object Type: Report
System: The UNT Digital Library
Evaluating Unsupervised Ensembles when applied to Word Sense Induction (open access)

Evaluating Unsupervised Ensembles when applied to Word Sense Induction

None
Date: February 15, 2012
Creator: Stevens, K D
Object Type: Article
System: The UNT Digital Library
Virginia Energy and Cost Savings for New Single- and Multifamily Homes: 2012 IECC as Compared to the 2009 Virginia Construction Code (open access)

Virginia Energy and Cost Savings for New Single- and Multifamily Homes: 2012 IECC as Compared to the 2009 Virginia Construction Code

The 2012 International Energy Conservation Code (IECC) yields positive benefits for Virginia homeowners. Moving to the 2012 IECC from the current Virginia Construction Code is cost effective over a 30-year life cycle. On average, Virginia homeowners will save $5,836 with the 2012 IECC. After accounting for upfront costs and additional costs financed in the mortgage, homeowners should see net positive cash flows (i.e., cumulative savings exceeding cumulative cash outlays) in 1 year for the 2012 IECC. Average annual energy savings are $388 for the 2012 IECC.
Date: June 15, 2012
Creator: Lucas, Robert G.; Taylor, Zachary T.; Mendon, Vrushali V. & Goel, Supriya
Object Type: Report
System: The UNT Digital Library
Macroencapsulation Equivalency Guidance for Classified Weapon Components and NNSSWAC Compliance (open access)

Macroencapsulation Equivalency Guidance for Classified Weapon Components and NNSSWAC Compliance

The U.S. Department of Energy (DOE) complex has a surplus of classified legacy weapon components generated over the years with no direct path for disposal. The majority of the components have been held for uncertainty of future use or no identified method of sanitization or disposal. As more weapons are retired, there is an increasing need to reduce the amount of components currently in storage or on hold. A process is currently underway to disposition and dispose of the legacy/retired weapons components across the DOE complex.
Date: May 15, 2012
Creator: Poling, J.
Object Type: Report
System: The UNT Digital Library
Implementation of BN Control in the National Spherical Torus Experiment (open access)

Implementation of BN Control in the National Spherical Torus Experiment

We have designed and constructed a system for control of the normalized B in the National Spherical Torus Experiment [M. Ono, et al., Nuclear Fusion 40, 557 (2000)]. A PID operator is applied to the difference between the present value of B N (from realtime equilibrium reconstruction) and a time-dependent request, in order to calculate the required injected power. This injected power request is then turned into modulations of the neutral beams. The details of this algorithm are described, including the techniques used to develop the appropriate control gains. Example uses of the system are shown
Date: September 15, 2012
Creator: Gerhardt, S.; Bell, M. G.; Cropper, M.; Gates, D. A.; Koleman, E.; Lawson, J. et al.
Object Type: Report
System: The UNT Digital Library
Conference on Non-linear Phenomena in Mathematical Physics: Dedicated to Cathleen Synge Morawetz on her 85th Birthday. The Fields Institute, Toronto, Canada September 18-20, 2008. Sponsors: Association for Women in Mathematics, Inc. and The Fields Institute (open access)

Conference on Non-linear Phenomena in Mathematical Physics: Dedicated to Cathleen Synge Morawetz on her 85th Birthday. The Fields Institute, Toronto, Canada September 18-20, 2008. Sponsors: Association for Women in Mathematics, Inc. and The Fields Institute

This scientific meeting focused on the legacy of Cathleen S. Morawetz and the impact that her scientific work on transonic flow and the non-linear wave equation has had in recent progress on different aspects of analysis for non-linear wave, kinetic and quantum transport problems associated to mathematical physics. These are areas where the elements of continuum, statistical and stochastic mechanics, and their interplay, have counterparts in the theory of existence, uniqueness and stability of the associated systems of equations and geometric constraints. It was a central event for the applied and computational analysis community focusing on Partial Differential Equations. The goal of the proposal was to honor Cathleen Morawetz, a highly successful woman in mathematics, while encouraging beginning researchers. The conference was successful in show casing the work of successful women, enhancing the visibility of women in the profession and providing role models for those just beginning their careers. The two-day conference included seven 45-minute lectures and one day of six 45-minute lectures, and a poster session for junior participants. The conference program included 19 distinguished speakers, 10 poster presentations, about 70 junior and senior participants and, of course, the participation of Cathleen Synge Morawetz. The conference celebrated Morawetz’s paramount …
Date: October 15, 2012
Creator: Lewis, Jennifer
Object Type: Report
System: The UNT Digital Library
Threshold for Electron Trapping Nonlinearity in Langmuir Waves (open access)

Threshold for Electron Trapping Nonlinearity in Langmuir Waves

None
Date: August 15, 2012
Creator: Strozzi, D. J.; Williams, E. A.; Rose, H. A.; Hinkel, D. E.; Langdon, A. B. & Banks, J. W.
Object Type: Article
System: The UNT Digital Library
FHR Generic Design Criteria (open access)

FHR Generic Design Criteria

The purpose of this document is to provide an initial, focused reference to the safety characteristics of and a licensing approach for Fluoride-Salt-Cooled High-Temperature Reactors (FHRs). The document does not contain details of particular reactor designs nor does it attempt to identify or classify either design basis or beyond design basis accidents. Further, this document is an initial attempt by a small set of subject matter experts to document the safety and licensing characteristics of FHRs for a larger audience. The document is intended to help in setting the safety and licensing research, development, and demonstration path forward. Input from a wider audience, further technical developments, and additional study will be required to develop a consensus position on the safety and licensing characteristics of FHRs. This document begins with a brief overview of the attributes of FHRs and then a general description of their anticipated safety performance. Following this, an overview of the US nuclear power plant approval process is provided that includes both test and power reactors, as well as the role of safety standards in the approval process. The document next describes a General Design Criteria (GDC)–based approach to licensing an FHR and provides an initial draft set …
Date: June 15, 2012
Creator: Flanagan, G. F.; Holcomb, D. E. & Cetiner, S. M.
Object Type: Report
System: The UNT Digital Library
Hawaii Utility Integration Initiatives to Enable Wind (Wind HUI) Final Technical Report (open access)

Hawaii Utility Integration Initiatives to Enable Wind (Wind HUI) Final Technical Report

To advance the state and nation toward clean energy, Hawaii is pursuing an aggressive Renewable Portfolio Standard (RPS), 40% renewable generation and 30% energy efficiency and transportation initiatives by 2030. Additionally, with support from federal, state and industry leadership, the Hawaii Clean Energy Initiative (HCEI) is focused on reducing Hawaii's carbon footprint and global warming impacts. To keep pace with the policy momentum and changing industry technologies, the Hawaiian Electric Companies are proactively pursuing a number of potential system upgrade initiatives to better manage variable resources like wind, solar and demand-side and distributed generation alternatives (i.e. DSM, DG). As variable technologies will continue to play a significant role in powering the future grid, practical strategies for utility integration are needed. Hawaiian utilities are already contending with some of the highest penetrations of renewables in the nation in both large-scale and distributed technologies. With island grids supporting a diverse renewable generation portfolio at penetration levels surpassing 40%, the Hawaiian utilities experiences can offer unique perspective on practical integration strategies. Efforts pursued in this industry and federal collaborative project tackled challenging issues facing the electric power industry around the world. Based on interactions with a number of western utilities and building on …
Date: July 15, 2012
Creator: Nakafuji, Dora; Dangelmaier, Lisa & Reynolds, Chris
Object Type: Report
System: The UNT Digital Library
Elementary Processes Underlying Alpha Channeling in Tokamaks (open access)

Elementary Processes Underlying Alpha Channeling in Tokamaks

Alpha channeling in tokamaks is speculative, but also extraordinarily attractive. Waves that can accomplish this effect have been identified. Key aspects of the theory now enjoy experimental confirmation. This paper will review the elementary processes of wave-particle interactions in plasma that underlie the alpha channeling effect
Date: June 15, 2012
Creator: Fisch, NM.J.
Object Type: Article
System: The UNT Digital Library
Design of a proton-electron beam overlap monitor for the new RHIC electron lens, based on detecting energetic backscattered electrons (open access)

Design of a proton-electron beam overlap monitor for the new RHIC electron lens, based on detecting energetic backscattered electrons

The optimal performance of the two electron lenses that are being implemented for high intensity polarized proton operation of RHIC requires excellent collinearity of the {approx}0.3 mm RMS wide electron beams with the proton bunch trajectories over the {approx}2m interaction lengths. The main beam overlap diagnostic tool will make use of electrons backscattered in close encounters with the relativistic protons. These electrons will spiral along the electron guiding magnetic field and will be detected in a plastic scintillator located close to the electron gun. A fraction of these electrons will have energies high enough to emerge from the vacuum chamber through a thin window thus simplifying the design and operation of the detector. The intensity of the detected electrons provides a measure of the overlap between the e- and the opposing proton beams. Joint electron arrival time and energy discrimination may be used additionally to gain some longitudinal position information with a single detector per lens.
Date: April 15, 2012
Creator: T., Thieberger; Beebe, E.; Fischer, W.; Gassner, D.; Gu, X.; Hamdi, K. et al.
Object Type: Article
System: The UNT Digital Library
Summary of the International Conference on Arabidopsis Research 2011, June 22-25, 2011 (open access)

Summary of the International Conference on Arabidopsis Research 2011, June 22-25, 2011

This project provided participant support for the gathering of plant biologists at the International Conferences on Arabidopsis Research (ICAR) in 2011. Arabidopsis thaliana, the reference flowering plant, has been intensely studied over the last 20 years and has proven to be an ideal model for studying nearly all aspects of plant biology. The success of this research field has been greatly facilitated by the openness and collegiality of the community fostered through multiple international forums including the ICAR. Advances in basic and applied plant biology are featured at the meeting, which is the primary gathering point for this strongly integrated international community. The ICAR convenes plant researchers, allows discussion and dissemination of the latest research in plant biology, and facilitates dialog among those that may be separated by geography, career stage, and culture. This project focused on facilitating access by early career scientists that have reduced access to attend major meetings.
Date: July 15, 2012
Creator: Meyers, Blake C
Object Type: Report
System: The UNT Digital Library
Final Report on Work Performed Under Agreement (open access)

Final Report on Work Performed Under Agreement

Solutia Performance Films, utilizing funding from the U.S. Department of Energy's Buildings Technologies Program, completed research to develop, validate, and commercialize a range of cost-effective, low-emissivity energy-control retrofit window films with significantly improved emissivity over current technology. These films, sold under the EnerLogic® trade name, offer the energy-saving properties of modern low-e windows, with several advantages over replacement windows, such as: lower initial installation cost, a significantly lower product carbon footprint, and an ability to provide a much faster return on investment. EnerLogic® window films also offer significantly greater energy savings than previously available with window films with similar visible light transmissions. EnerLogic® window films offer these energy-saving advantages over other window films due to its ability to offer both summer cooling and winter heating savings. Unlike most window films, that produce savings only during the cooling season, EnerLogic® window film is an all-season, low-emissivity (low-e) film that produces both cooling and heating season savings. This paper will present technical information on the development hurdles as well as details regarding the following claims being made about EnerLogic® window film, which can be found at www.EnerLogicfilm.com: 1. Other window film technologies save energy. EnerLogic® window film's patent-pending coating delivers excellent energy …
Date: April 15, 2012
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Summary of Fermilab's Recycler Electron Cooler Operation and Studies (open access)

Summary of Fermilab's Recycler Electron Cooler Operation and Studies

Fermilab's Recycler ring was used as a storage ring for accumulation and subsequent manipulations of 8 GeV antiprotons destined for the Tevatron collider. To satisfy these missions, a unique electron cooling system was designed, developed and successfully implemented. The most important features that distinguish the Recycler cooler from other existing electron coolers are its relativistic energy, 4.3 MV combined with 0.1-0.5 A DC beam current, a weak continuous longitudinal magnetic field in the cooling section, 100 G, and lumped focusing elsewhere. With the termination of the Tevatron collider operation, so did the cooler. In this article, we summarize the experience of running this unique machine.
Date: May 15, 2012
Creator: Prost, L. R. & Shemyakin, A.
Object Type: Article
System: The UNT Digital Library
Texas Energy and Cost Savings for New Single- and Multifamily Homes: 2012 IECC as Compared to the 2009 IECC (open access)

Texas Energy and Cost Savings for New Single- and Multifamily Homes: 2012 IECC as Compared to the 2009 IECC

The 2012 International Energy Conservation Code (IECC) yields positive benefits for Texas homeowners. Moving to the 2012 IECC from the 2009 IECC is cost effective over a 30-year life cycle. On average, Texas homeowners will save $3,456 with the 2012 IECC. After accounting for upfront costs and additional costs financed in the mortgage, homeowners should see net positive cash flows (i.e., cumulative savings exceeding cumulative cash outlays) in 2 years for the 2012 IECC. Average annual energy savings are $259 for the 2012 IECC.
Date: June 15, 2012
Creator: Lucas, Robert G.; Taylor, Zachary T.; Mendon, Vrushali V. & Goel, Supriya
Object Type: Report
System: The UNT Digital Library