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We encourage you to perform a real-time search of NLEBeta
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1

Tests of second-generation and third-generation density functionals for thermochemical kineticsy  

E-Print Network [OSTI]

Tests of second-generation and third-generation density functionals for thermochemical kineticsy January 2004 We report tests of second- and third-generation density functionals, for pure density of these methods is tested against each other as well as against first- generation methods (BP86, BLYP, PW91, B3PW

Truhlar, Donald G

2

Rule-Based Generation of Thermochemical Routes to Biomass Conversion  

Science Journals Connector (OSTI)

Biomass conversion to fuels and chemicals involves a multitude of oxygen-containing compounds and thermochemical reaction routes. A detailed elucidation of the process chemistry is, thus, a key step in understanding the reaction mechanisms and designing ...

Srinivas Rangarajan; Aditya Bhan; Prodromos Daoutidis

2010-06-03T23:59:59.000Z

3

Thermodynamic and Kinetic Study of the Carbothermal Reduction of SnO2 for Solar Thermochemical Fuel Generation  

Science Journals Connector (OSTI)

Thermodynamic and Kinetic Study of the Carbothermal Reduction of SnO2 for Solar Thermochemical Fuel Generation ... Fossil fuel depletion and the environmental impact of their generalized use on the climate stability are major issues for the upcoming century. ... The carboredn. in SnO2 to produce Sn and its hydrolysis with steam to generate hydrogen were studied. ...

Gaël Levêque; Stéphane Abanades

2013-12-18T23:59:59.000Z

4

Code Generation on Steroids: Enhancing COTS Code Generators via Generative Aspects  

E-Print Network [OSTI]

Code Generation on Steroids: Enhancing COTS Code Generators via Generative Aspects Cody Henthorne tilevich@cs.vt.edu Abstract Commercial of-the-shelf (COTS) code generators have become an integral part of modern commercial software development. Programmers use code generators to facilitate many tedious

Ryder, Barbara G.

5

Project Profile: Baseload CSP Generation Integrated with Sulfur-Based Thermochemical Heat Storage  

Broader source: Energy.gov [DOE]

General Atomics, under the Baseload CSP FOA, is demonstrating the engineering feasibility of using a sulfur-based thermochemical cycle to store heat from a CSP plant and support baseload power...

6

High Efficiency Generation of Hydrogen Fuels Using Solar Thermochemical Splitting of Water  

SciTech Connect (OSTI)

The objective of this work is to identify economically feasible concepts for the production of hydrogen from water using solar energy. The ultimate project objective was to select one or more competitive concepts for pilot-scale demonstration using concentrated solar energy. Results of pilot scale plant performance would be used as foundation for seeking public and private resources for full-scale plant development and testing. Economical success in this venture would afford the public with a renewable and limitless source of energy carrier for use in electric power load-leveling and as a carbon-free transportation fuel. The Solar Hydrogen Generation Research (SHGR) project embraces technologies relevant to hydrogen research under the Office of Hydrogen Fuel Cells and Infrastructure Technology (HFCIT) as well as concentrated solar power under the Office of Solar Energy Technologies (SET). Although the photoelectrochemical work is aligned with HFCIT, some of the technologies in this effort are also consistent with the skills and technologies found in concentrated solar power and photovoltaic technology under the Office of Solar Energy Technologies (SET). Hydrogen production by thermo-chemical water-splitting is a chemical process that accomplishes the decomposition of water into hydrogen and oxygen using only heat or a combination of heat and electrolysis instead of pure electrolysis and meets the goals for hydrogen production using only water and renewable solar energy as feed-stocks. Photoelectrochemical hydrogen production also meets these goals by implementing photo-electrolysis at the surface of a semiconductor in contact with an electrolyte with bias provided by a photovoltaic source. Here, water splitting is a photo-electrolytic process in which hydrogen is produced using only solar photons and water as feed-stocks. The thermochemical hydrogen task engendered formal collaborations among two universities, three national laboratories and two private sector entities. The photoelectrochemical hydrogen task included formal collaborations with three universities and one national laboratory. The formal participants in these two tasks are listed above. Informal collaborations in both projects included one additional university (the University of Nevada, Reno) and two additional national laboratories (Lawrence Livermore National Laboratory and Lawrence Berkeley National Laboratory).

Heske, Clemens; Moujaes, Samir; Weimer, Alan; Wong, Bunsen; Siegal, Nathan; McFarland, Eric; Miller, Eric; Lewis, Michele; Bingham, Carl; Roth, Kurth; Sabacky, Bruce; Steinfeld, Aldo

2011-09-29T23:59:59.000Z

7

Adaptive code generators for tree coding of speech  

E-Print Network [OSTI]

Tree coding is a promising way of obtaining good performance for medium-to-low rate speech coding. The key part of a tree coder is the code generator which consists of a short-term predictor and a long-term predictor. The best predictor designed...

Dong, Hui

1998-01-01T23:59:59.000Z

8

COP5621 Project Phase 4 Code Generator  

E-Print Network [OSTI]

COP5621 Project Phase 4 Code Generator Purpose: This project is intended to give you experience in the text and in class. Project Summary: Your task is to write a code generator, the final phase of your the same task. Predefined Functions in PASC: You should write your own predefined procedures and functions

Yuan, Xin

9

Subsystem codes with spatially local generators  

Science Journals Connector (OSTI)

We study subsystem codes whose gauge group has local generators in two-dimensional (2D) geometry. It is shown that there exists a family of such codes defined on lattices of size L×L with the number of logical qubits k and the minimum distance d both proportional to L. The gauge group of these codes involves only two-qubit generators of type XX and ZZ coupling nearest-neighbor qubits (and some auxiliary one-qubit generators). Our proof is not constructive as it relies on a certain version of the Gilbert-Varshamov bound for classical codes. Along the way, we introduce and study properties of generalized Bacon-Shor codes that might be of independent interest. Secondly, we prove that any 2D subsystem [n,k,d] code with spatially local generators obeys upper bounds kd=O(n) and d2=O(n). The analogous upper bound proved recently for 2D stabilizer codes is kd2=O(n). Our results thus demonstrate that subsystem codes can be more powerful than stabilizer codes under the spatial locality constraint.

Sergey Bravyi

2011-01-26T23:59:59.000Z

10

NERSC Leads Next-Generation Code Optimization Effort  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Leads Next-Generation Code Optimization Effort NERSC Launches Next-Generation Code Optimization Effort NERSC, Intel, Cray team up to prepare users for transition to exascale...

11

Baseload CSP Generation Integrated with Sulfur-Based Thermochemical Heat Storage  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

November 13, 2012 | Wong November 13, 2012 | Wong * Conduct laboratory studies on reaction thermodynamics and kinetics of the sulfur generating disproportionation reaction. Effect of various potential catalysts and means to separate the reaction products will be investigated. A kinetic equation for process design will be defined. * Improve the solar reactor design and catalyst performance to increase SO 3 to SO 2 conversion fraction * Preliminary process component design and experimental validation for the three process steps. Carry out process integration design between the CSP plant, the sulfur processing and storage plant and the electricity generation unit. * Design and flowsheet studies to assess the system economics, its environmental impact and pathways to ascertain safe operations of

12

Baseload CSP Generation Integrated with Sulfur-Based Thermochemical Heat Storage  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

May 15, 2013 | Wong May 15, 2013 | Wong * Conduct laboratory studies on reaction thermodynamics and kinetics of the sulfur generating disproportionation reaction. Effect of various potential catalysts and means to separate the reaction products will be investigated. A kinetic equation for process design will be defined. * Improve the solar reactor design and catalyst performance to increase SO 3 to SO 2 conversion fraction * Preliminary process component design and experimental validation for the three process steps. Carry out process integration design between the CSP plant, the sulfur processing and storage plant and the electricity generation unit. * Design and flowsheet studies to assess the system economics, its environmental impact and pathways to ascertain safe operations of

13

DOI: 10.1002/cssc.200900138 Ceria as a Thermochemical Reaction Medium for Selectively Generating  

E-Print Network [OSTI]

Syngas or Methane from H2O and CO2 William C. Chueh and Sossina M. Haile*[a] To enable the transition a chemical fuel. For the production of hydrogen the reac- tion cycle is given as: ðTemperature TH�MO2 ! MO2�d H2 generation by this strategy, but also direct and rapid production of high-energy-density fuels

14

Thermochemical Energy Storage  

Broader source: Energy.gov [DOE]

This presentation summarizes the introduction given by Christian Sattler during the Thermochemical Energy Storage Workshop on January 8, 2013.

15

Generating Optimized Code from SCR Specifications Tom Rothamel  

E-Print Network [OSTI]

Generating Optimized Code from SCR Specifications Tom Rothamel Yanhong A. Liu Stony Brook for generating efficient code from SCR (Software Cost Reduction) specifications. While the SCR tabular notation now SCR has lacked an automated method for generating optimized code. This paper describes an ef

Liu, Yanhong Annie

16

Universal thermochemical energy converter  

DOE Patents [OSTI]

Disclosed are methods and apparatus for a thermochemical closed cycle employing a polyatomic, chemically active working fluid for converting heat energy into useful work.

Labinov, Solomon Davidovich (Oak Ridge, TN); Sand, James R. (Oak Ridge, TN); Conklin, James C. (Knoxville, TN); VanCoevering, James (Oak Ridge, TN); Courville, George E. (Oak Ridge, TN)

2001-01-01T23:59:59.000Z

17

Generating Efficient Tiled Code for Distributed Memory Machines and Jingling Xue  

E-Print Network [OSTI]

Generating Efficient Tiled Code for Distributed Memory Machines Peiyi Tang and Jingling Xue issues are addressed: computation and data distribution, message-passing code generation, memory man Generate SPMD Code Computation Distribution Data Distribution Message-Passing Code Generation

Tang, Peiyi

18

Toward optimized code generation through model-based optimization  

E-Print Network [OSTI]

Toward optimized code generation through model- based optimization Asma Charfi, Chokri Mraidha with in RTES development is linked to the optimization of their software part. Although automatic code generation and the use of optimizing compilers bring some answers to application optimization issue, we

Paris-Sud XI, Université de

19

Optimal Integrated Code Generation for Clustered VLIW Architectures  

E-Print Network [OSTI]

allows us to describe and optimize for irregular register and memory structures. In order to obtain or the power consumption, or by an efficient utilization of registers. Generating code consists in solving scheduling, and register allocation. We describe a method for fully integrated optimal code genera- tion

Kessler, Christoph

20

Optimal Integrated Code Generation for Clustered VLIW Architectures  

E-Print Network [OSTI]

allows us to describe and optimize for irregular register and memory structures. In order to obtain or the power consumption, or by an efficient utilization of registers. Generating code consists in solving scheduling, and register allocation. We describe a method for fully integrated optimal code genera­ tion

Kessler, Christoph

Note: This page contains sample records for the topic "generation thermochemical code" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


21

The Florida Energy Efficiency Building Code, the Second Generation  

E-Print Network [OSTI]

This paper discusses the Revision of the Residential Sections of the Florida Energy Efficiency Code for Building Construction. The procedures utilized in the Revision and the concepts integrated in to the 2nd Generation of the Florida Specific...

Dixon, R. W.

1985-01-01T23:59:59.000Z

22

Security Policy Testing via Automated Program Code Generation (Extended Abstract)  

E-Print Network [OSTI]

-language-specific coverage crite- ria [5, 6] and test generation algorithms [4, 5]. One limitation of these previous testingSecurity Policy Testing via Automated Program Code Generation (Extended Abstract) Ting Yu North's sophisticated access control policies. Similar to quality assurance of software systems, testing techniques [4

Xie, Tao

23

Automated Code Generation for Lattice Quantum Chromodynamics and beyond  

E-Print Network [OSTI]

We present here our ongoing work on a Domain Specific Language which aims to simplify Monte-Carlo simulations and measurements in the domain of Lattice Quantum Chromodynamics. The tool-chain, called Qiral, is used to produce high-performance OpenMP C code from LaTeX sources. We discuss conceptual issues and details of implementation and optimization. The comparison of the performance of the generated code to the well-established simulation software is also made.

Denis Barthou; Olivier Brand-Foissac; Romain Dolbeau; Gilbert Grosdidier; Christina Eisenbeis; Michael Kruse; Olivier Pene; Konstantin Petrov; Claude Tadonki

2014-01-09T23:59:59.000Z

24

Typed Fusion with Applications to Parallel and Sequential Code Generation  

E-Print Network [OSTI]

Typed Fusion with Applications to Parallel and Sequential Code Generation Ken Kennedy Kathryn S. Mc the granularity of parallel loops and for improving data locality. This paper introduces typed fusion and parallel program optimization. Typed fusion is more general and applicable than previous work. We present

McKinley, Kathryn S.

25

Icon Scanning: Towards Next Generation QR Codes Itamar Friedman  

E-Print Network [OSTI]

Icon Scanning: Towards Next Generation QR Codes Itamar Friedman Technion Haifa, Israel itamarf-friendly way to obtain this particular applica- tion could be by taking a snapshot of its corresponding icon be thought of as icons with a binary pattern. In this paper we extend this to App-icons and propose

Zelnik-Manor, Lihi - Zelnik-Manor, Lihi

26

Project Profile: Regenerative Carbonate-Based Thermochemical...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

Regenerative Carbonate-Based Thermochemical Energy Storage System for Concentrating Solar Power Project Profile: Regenerative Carbonate-Based Thermochemical Energy Storage System...

27

Thermochemical Conversion Related Links | Department of Energy  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

website's Information Resources section. Some key publications are: Using Heat and Chemistry to Make Fuel and Power: Thermochemical Conversion (January 2011) Thermochemical...

28

Improved diffusion coefficients generated from Monte Carlo codes  

SciTech Connect (OSTI)

Monte Carlo codes are becoming more widely used for reactor analysis. Some of these applications involve the generation of diffusion theory parameters including macroscopic cross sections and diffusion coefficients. Two approximations used to generate diffusion coefficients are assessed using the Monte Carlo code MC21. The first is the method of homogenization; whether to weight either fine-group transport cross sections or fine-group diffusion coefficients when collapsing to few-group diffusion coefficients. The second is a fundamental approximation made to the energy-dependent P1 equations to derive the energy-dependent diffusion equations. Standard Monte Carlo codes usually generate a flux-weighted transport cross section with no correction to the diffusion approximation. Results indicate that this causes noticeable tilting in reconstructed pin powers in simple test lattices with L2 norm error of 3.6%. This error is reduced significantly to 0.27% when weighting fine-group diffusion coefficients by the flux and applying a correction to the diffusion approximation. Noticeable tilting in reconstructed fluxes and pin powers was reduced when applying these corrections. (authors)

Herman, B. R.; Forget, B.; Smith, K. [Massachusetts Institute of Technology, Department of Nuclear Science and Engineering, 77 Massachusetts Avenue, Cambridge, MA 02139 (United States); Aviles, B. N. [Knolls Atomic Power Laboratory, Bechtel Marine Propulsion Corporation, P.O. Box 1072, Schenectady, NY 12301-1072 (United States)

2013-07-01T23:59:59.000Z

29

Aspect-oriented model-driven code generation: A systematic mapping study  

Science Journals Connector (OSTI)

Context: Model-driven code generation is being increasingly applied to enhance software development from perspectives of maintainability, extensibility and reusability. However, aspect-oriented code generation from models is an area that is currently ... Keywords: Aspect-oriented software development, Code generation, Model-driven engineering, Systematic map

Abid Mehmood; Dayang N. A. Jawawi

2013-02-01T23:59:59.000Z

30

Integrated Solar Thermochemical Reaction System  

Broader source: Energy.gov [DOE]

This fact sheet describes an integrated solar thermochemical reaction system project awarded under the DOE's 2012 SunShot Concentrating Solar Power R&D award program. The team, led by the Pacific Northwest National Laboratory, is working to develop and demonstrate a high-performance solar thermochemical reaction system in an end-to-end demonstration that produces electricity. A highly efficient solar thermochemical reaction system would allow for 24-hour operation without the need for storage technology, and reductions in total system costs while providing a relatively low-risk deployment option for CSP systems.

31

Clearwater: Extensible, Flexible, Modular Code Generation Galen S. Swint, Calton Pu,  

E-Print Network [OSTI]

in two non-trivial code generators: the In- fopipe Stub Generator (ISG) to support distributed flow for distributed systems soft- ware has been an established technique since the introduction of RPC stub generator life span of code generation tools developed for distributed system software. Two of our recent

Paris-Sud XI, Université de

32

Development of tools for automatic generation of PLC code  

E-Print Network [OSTI]

This Master thesis was performed at CERN and more specifically in the EN-ICE-PLC section. The Thesis describes the integration of two PLC platforms, that are based on CODESYS development tool, to the CERN defined industrial framework, UNICOS. CODESYS is a development tool for PLC programming, based on IEC 61131-3 standard, and is adopted by many PLC manufacturers. The two PLC development environments are, the SoMachine from Schneider and the TwinCAT from Beckhoff. The two CODESYS compatible PLCs, should be controlled by the SCADA system of Siemens, WinCC OA. The framework includes a library of Function Blocks (objects) for the PLC programs and a software for automatic generation of the PLC code based on this library, called UAB. The integration aimed to give a solution that is shared by both PLC platforms and was based on the PLCOpen XML scheme. The developed tools were demonstrated by creating a control application for both PLC environments and testing of the behavior of the code of the library.

Koutli, Maria; Rochez, Jacques

33

SWAAM-code development and verification and application to steam generator designs  

SciTech Connect (OSTI)

This paper describes the family of SWAAM codes which were developed by Argonne National Laboratory to analyze the effects of sodium-water reactions on LMR steam generators. The SWAAM codes were developed as design tools for analyzing various phenomena related to steam generator leaks and the resulting thermal and hydraulic effects on the steam generator and the intermediate heat transport system (IHTS). The paper discusses the theoretical foundations and numerical treatments on which the codes are based, followed by a description of code capabilities and limitations, verification of the codes and applications to steam generator and IHTS designs. 25 refs., 14 figs.

Shin, Y.W.; Valentin, R.A.

1990-01-01T23:59:59.000Z

34

2011 Biomass Program Platform Peer Review: Thermochemical Conversion...  

Broader source: Energy.gov (indexed) [DOE]

Thermochemical Conversion 2011 Biomass Program Platform Peer Review: Thermochemical Conversion "This document summarizes the recommendations and evaluations provided by an...

35

Coding Tandem Repeats Generate Diversity in Aspergillus fumigatus Genes  

Science Journals Connector (OSTI)

...Genes containing multiple coding mini- and microsatellite repeats...growth was observed under a grid-mounted Olympus CK inverted...conidia were counted under a grid-mounted Olympus CK inverted...Genes containing multiple coding mini- and microsatellite repeats...

Emma Levdansky; Jacob Romano; Yona Shadkchan; Haim Sharon; Kevin J. Verstrepen; Gerald R. Fink; Nir Osherov

2007-06-08T23:59:59.000Z

36

Development of the Hybrid Sulfur Thermochemical Cycle  

SciTech Connect (OSTI)

The production of hydrogen via the thermochemical splitting of water is being considered as a primary means for utilizing the heat from advanced nuclear reactors to provide fuel for a hydrogen economy. The Hybrid Sulfur (HyS) Process is one of the baseline candidates identified by the U.S. Department of Energy [1] for this purpose. The HyS Process is a two-step hybrid thermochemical cycle that only involves sulfur, oxygen and hydrogen compounds. Recent work has resulted in an improved process design with a calculated overall thermal efficiency (nuclear heat to hydrogen, higher heating value basis) approaching 50%. Economic analyses indicate that a nuclear hydrogen plant employing the HyS Process in conjunction with an advanced gas-cooled nuclear reactor system can produce hydrogen at competitive prices. Experimental work has begun on the sulfur dioxide depolarized electrolyzer, the major developmental component in the cycle. Proof-of-concept tests have established proton-exchange-membrane cells (a state-of-the-art technology) as a viable approach for conducting this reaction. This is expected to lead to more efficient and economical cell designs than were previously available. Considerable development and scale-up issues remain to be resolved, but the development of a viable commercial-scale HyS Process should be feasible in time to meet the commercialization schedule for Generation IV gas-cooled nuclear reactors.

Summers, William A.; Steimke, John L

2005-09-23T23:59:59.000Z

37

10 - Thermochemical production of hydrogen  

Science Journals Connector (OSTI)

Abstract: The growing interest in hydrogen as a chemical reactant and energy carrier requires evaluation of all possible conversion processes for its production. This chapter analyses the different processes currently used for hydrogen production, together with the most promising approaches currently under development. Among the latter are thermochemical water-splitting cycles powered by renewable (sustainable) energy sources. A simplified description of the basic thermodynamic aspects of this process is presented, and some examples are presented.

A. Giaconia

2014-01-01T23:59:59.000Z

38

Webinar: Highly Efficient Solar Thermochemical Reaction Systems  

Broader source: Energy.gov [DOE]

Video recording and text version of the Fuel Cell Technologies Office webinar titled "Highly Efficient Solar Thermochemical Reaction Systems," originally presented on January 13, 2015.

39

NREL: Biomass Research - Thermochemical Conversion Projects  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

fuel synthesis reactor. NREL investigates thermochemical processes for converting biomass and its residues to fuels and intermediates using gasification and pyrolysis...

40

Highly Efficient Solar Thermochemical Reaction Systems  

Broader source: Energy.gov [DOE]

Download presentation slides from the DOE Fuel Cell Technologies Office webinar "Highly Efficient Solar Thermochemical Reaction Systems" held on January 13, 2015.

Note: This page contains sample records for the topic "generation thermochemical code" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


41

Generating Fast String Manipulating Code Through Transducer Exploration and SIMD Integration  

E-Print Network [OSTI]

languages is even more complex. Sanitizers are typically small snippets of code, perhaps tens of lines Security sanitizers have long been known to be very diffi- cult to implement correctly. Moreover to several real string sanitizers. We use an automatic testing approach to compare our generated code

Livshits, Ben

42

Pacies (Part Code Identification Expert System): an expert system to generate part codes for the selection of small part feeding and orienting devices for use in automatic assembly  

E-Print Network [OSTI]

PACIES (PART CODE IDENTIFICATION EXPERT SYSTEM): AN EXPERT SYSTEM' TO GENERATE PART CODES FOR THE SELECTION OF SMALL PART FEEDING AND ORIENTING DEVICES FOR USE IN AUTOMATIC ASSEMBLY A Thesis by YU-TONG CHEN Submitted to the Graduate College... of Texas AAM University in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE May 1985 Major Subject: Industrial Engineering PACIES (PART CODE IDENTIFICATION EXPERT SYSTEM): AN EXPERT SYSTEM TO GENERATE PART CODES...

Chen, Yu-Tong

2012-06-07T23:59:59.000Z

43

University of Colorado-Boulder Researches Solar-Thermochemical...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

University of Colorado-Boulder Researches Solar-Thermochemical Hydrogen Production University of Colorado-Boulder Researches Solar-Thermochemical Hydrogen Production July 26, 2013...

44

Lessons Learned: Devolping Thermochemical Cycles for Solar Heat...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

Lessons Learned: Devolping Thermochemical Cycles for Solar Heat Storage Applications Lessons Learned: Devolping Thermochemical Cycles for Solar Heat Storage Applications This...

45

Thermochemical Conversion: Using Heat and Catalysis to Make Biofuels...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

Thermochemical Conversion: Using Heat and Catalysis to Make Biofuels and Bioproducts Thermochemical Conversion: Using Heat and Catalysis to Make Biofuels and Bioproducts The...

46

Hybrid Sulfur Thermochemical Process Development Annual Report  

SciTech Connect (OSTI)

The Hybrid Sulfur (HyS) Thermochemical Process is a means of producing hydrogen via water-splitting through a combination of chemical reactions and electrochemistry. Energy is supplied to the system as high temperature heat (approximately 900 C) and electricity. Advanced nuclear reactors (Generation IV) or central solar receivers can be the source of the primary energy. Large-scale hydrogen production based on this process could be a major contributor to meeting the needs of a hydrogen economy. This project's objectives include optimization of the HyS process design, analysis of technical issues and concerns, creation of a development plan, and laboratory-scale proof-of-concept testing. The key component of the HyS Process is the SO2-depolarized electrolyzer (SDE). Studies were performed that showed that an electrolyzer operating in the range of 500-600 mV per cell can lead to an overall HyS cycle efficiency in excess of 50%, which is superior to all other currently proposed thermochemical cycles. Economic analysis indicated hydrogen production costs of approximately $1.60 per kilogram for a mature nuclear hydrogen production plant. However, in order to meet commercialization goals, the electrolyzer should be capable of operating at high current density, have a long operating lifetime , and have an acceptable capital cost. The use of proton-exchange-membrane (PEM) technology, which leverages work for the development of PEM fuel cells, was selected as the most promising route to meeting these goals. The major accomplishments of this project were the design and construction of a suitable electrolyzer test facility and the proof-of-concept testing of a PEM-based SDE.

Summers, William A.; Buckner, Melvin R.

2005-07-21T23:59:59.000Z

47

Validation of the WIMSD4M cross-section generation code with benchmark results  

SciTech Connect (OSTI)

The WIMSD4 code has been adopted for cross-section generation in support of the Reduced Enrichment for Research and Test (RERTR) program at Argonne National Laboratory (ANL). Subsequently, the code has undergone several updates, and significant improvements have been achieved. The capability of generating group-collapsed micro- or macroscopic cross sections from the ENDF/B-V library and the more recent evaluation, ENDF/B-VI, in the ISOTXS format makes the modified version of the WIMSD4 code, WIMSD4M, very attractive, not only for the RERTR program, but also for the reactor physics community. The intent of the present paper is to validate the procedure to generate cross-section libraries for reactor analyses and calculations utilizing the WIMSD4M code. To do so, the results of calculations performed with group cross-section data generated with the WIMSD4M code will be compared against experimental results. These results correspond to calculations carried out with thermal reactor benchmarks of the Oak Ridge National Laboratory(ORNL) unreflected critical spheres, the TRX critical experiments, and calculations of a modified Los Alamos highly-enriched heavy-water moderated benchmark critical system. The benchmark calculations were performed with the discrete-ordinates transport code, TWODANT, using WIMSD4M cross-section data. Transport calculations using the XSDRNPM module of the SCALE code system are also included. In addition to transport calculations, diffusion calculations with the DIF3D code were also carried out, since the DIF3D code is used in the RERTR program for reactor analysis and design. For completeness, Monte Carlo results of calculations performed with the VIM and MCNP codes are also presented.

Leal, L.C. [Oak Ridge National Lab., TN (United States); Deen, J.R.; Woodruff, W.L. [Argonne National Lab., IL (United States)

1995-02-01T23:59:59.000Z

48

System for thermochemical hydrogen production  

DOE Patents [OSTI]

Method and apparatus are described for joule boosting a SO/sub 3/ decomposer using electrical instead of thermal energy to heat the reactants of the high temperature SO/sub 3/ decomposition step of a thermochemical hydrogen production process driven by a tandem mirror reactor. Joule boosting the decomposer to a sufficiently high temperature from a lower temperature heat source eliminates the need for expensive catalysts and reduces the temperature and consequent materials requirements for the reactor blanket. A particular decomposer design utilizes electrically heated silicon carbide rods, at a temperature of 1250/sup 0/K, to decompose a cross flow of SO/sub 3/ gas.

Werner, R.W.; Galloway, T.R.; Krikorian, O.H.

1981-05-22T23:59:59.000Z

49

Instruction Selection, Resource Allocation, and Scheduling in the AVIV Retargetable Code Generator  

E-Print Network [OSTI]

in this representation is then used to set up a heuristic branch­and­bound step that performs functional unit assignment allocation is carried out as a second step, es­ timates of register requirements are generated duringInstruction Selection, Resource Allocation, and Scheduling in the AVIV Retargetable Code Generator

Devadas, Srinivas

50

Estimating Equivalency of Explosives Through A Thermochemical Approach  

SciTech Connect (OSTI)

The Cheetah thermochemical computer code provides an accurate method for estimating the TNT equivalency of any explosive, evaluated either with respect to peak pressure or the quasi-static pressure at long time in a confined volume. Cheetah calculates the detonation energy and heat of combustion for virtually any explosive (pure or formulation). Comparing the detonation energy for an explosive with that of TNT allows estimation of the TNT equivalency with respect to peak pressure, while comparison of the heat of combustion allows estimation of TNT equivalency with respect to quasi-static pressure. We discuss the methodology, present results for many explosives, and show comparisons with equivalency data from other sources.

Maienschein, J L

2002-07-08T23:59:59.000Z

51

Validation of the WIMSD4M cross-section generation code with benchmark results  

SciTech Connect (OSTI)

The WIMSD4 code has been adopted for cross-section generation in support of the Reduced Enrichment Research and Test Reactor (RERTR) program at Argonne National Laboratory (ANL). Subsequently, the code has undergone several updates, and significant improvements have been achieved. The capability of generating group-collapsed micro- or macroscopic cross sections from the ENDF/B-V library and the more recent evaluation, ENDF/B-VI, in the ISOTXS format makes the modified version of the WIMSD4 code, WIMSD4M, very attractive, not only for the RERTR program, but also for the reactor physics community. The intent of the present paper is to validate the WIMSD4M cross-section libraries for reactor modeling of fresh water moderated cores. The results of calculations performed with multigroup cross-section data generated with the WIMSD4M code will be compared against experimental results. These results correspond to calculations carried out with thermal reactor benchmarks of the Oak Ridge National Laboratory (ORNL) unreflected HEU critical spheres, the TRX LEU critical experiments, and calculations of a modified Los Alamos HEU D{sub 2}O moderated benchmark critical system. The benchmark calculations were performed with the discrete-ordinates transport code, TWODANT, using WIMSD4M cross-section data. Transport calculations using the XSDRNPM module of the SCALE code system are also included. In addition to transport calculations, diffusion calculations with the DIF3D code were also carried out, since the DIF3D code is used in the RERTR program for reactor analysis and design. For completeness, Monte Carlo results of calculations performed with the VIM and MCNP codes are also presented.

Deen, J.R.; Woodruff, W.L. [Argonne National Lab., IL (United States); Leal, L.E. [Oak Ridge National Lab., TN (United States)

1995-01-01T23:59:59.000Z

52

Mesh generation and energy group condensation studies for the jaguar deterministic transport code  

SciTech Connect (OSTI)

The deterministic transport code Jaguar is introduced, and the modeling process for Jaguar is demonstrated using a two-dimensional assembly model of the Hoogenboom-Martin Performance Benchmark Problem. This single assembly model is being used to test and analyze optimal modeling methodologies and techniques for Jaguar. This paper focuses on spatial mesh generation and energy condensation techniques. In this summary, the models and processes are defined as well as thermal flux solution comparisons with the Monte Carlo code MC21. (authors)

Kennedy, R. A.; Watson, A. M.; Iwueke, C. I.; Edwards, E. J. [Knolls Atomic Power Laboratory, Bechtel Marine Propulsion Corporation, P.O. Box 1072, Schenectady, NY 12301-1072 (United States)

2012-07-01T23:59:59.000Z

53

Generation of SFR few-group constants using the Monte Carlo code Serpent  

SciTech Connect (OSTI)

In this study, the Serpent Monte Carlo code was used as a tool for preparation of homogenized few-group cross sections for the nodal diffusion analysis of Sodium cooled Fast Reactor (SFR) cores. Few-group constants for two reference SFR cores were generated by Serpent and then employed by nodal diffusion code DYN3D in 2D full core calculations. The DYN3D results were verified against the references full core Serpent Monte Carlo solutions. A good agreement between the reference Monte Carlo and nodal diffusion results was observed demonstrating the feasibility of using Serpent for generation of few-group constants for the deterministic SFR analysis. (authors)

Fridman, E.; Rachamin, R. [Helmholz-Zentrum Dresden-Rossendorf, POB 510119, Dresden, 01314 (Germany); Shwageraus, E. [Ben-Gurion University, POB 653, 84105 Beer-Sheva (Israel)

2013-07-01T23:59:59.000Z

54

NREL: Biomass Research - Thermochemical Users Facility  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Users Facility Users Facility Text version The state-of-the-art Thermochemical Users Facility (TCUF) consists of several complementary unit operations that can be configured to accommodate the testing and development of various reactors, filters, catalysts, and other unit operations. The TCUF offers clients the capability to test new processes and feedstocks in a timely and cost-effective manner and to quickly and safely obtain extensive performance data on their processes or equipment. The Thermochemical Users Facility contains the following equipment: Thermochemical Process Development Unit The heart of the TCUF is the 0.5-metric-ton-per-day Thermochemical Process Development Unit (TCPDU), which can be operated in either a pyrolysis or gasification mode. The main unit operations in the TCPDU include 8-inch

55

Webinar: Highly Efficient Solar Thermochemical Reaction Systems  

Broader source: Energy.gov [DOE]

The Fuel Cell Technologies Office will present a live webinar titled "Highly Efficient Solar Thermochemical Reaction Systems" on Tuesday, January 13, from 12:00 to 1:00 p.m. Eastern Standard Time.

56

Thermochemical Recuperation for High Temperature Furnaces  

Broader source: Energy.gov [DOE]

This factsheet describes a research project whose goal is to substantiate the technical feasibility of the thermochemical recuperation concept as well as its business viability, including identification of technical, scale-up, and manufacturability concerns.

57

Level: National and Regional Data; Row: NAICS Codes; Column: Onsite-Generation Components;  

U.S. Energy Information Administration (EIA) Indexed Site

3 Electricity: Components of Onsite Generation, 2006; 3 Electricity: Components of Onsite Generation, 2006; Level: National and Regional Data; Row: NAICS Codes; Column: Onsite-Generation Components; Unit: Million Kilowatthours. Renewable Energy (excluding Wood NAICS Total Onsite and Code(a) Subsector and Industry Generation Cogeneration(b) Other Biomass)(c) Other(d) Total United States 311 Food 4,563 4,249 * 313 3112 Grain and Oilseed Milling 2,845 2,819 0 27 311221 Wet Corn Milling 2,396 2,370 0 27 31131 Sugar Manufacturing 951 951 0 * 3114 Fruit and Vegetable Preserving and Specialty Foods 268 268 0 * 3115 Dairy Products 44 31 * Q 3116 Animal Slaughtering and Processing 17 0 0 17 312 Beverage and Tobacco Products 659 623 Q * 3121 Beverages 587 551 Q * 3122 Tobacco 72

58

Using Web Service Gateways and Code Generation for Sustainable IoT System Development  

E-Print Network [OSTI]

use case this paper shows how we hope to make equally sustainable IoT solutions by employing a modelUsing Web Service Gateways and Code Generation for Sustainable IoT System Development Till Riedel+ years may especially profit from an Internet of Things. Motivated by a practical industrial servicing

Beigl, Michael

59

Title 20, California Code of Regulations Article 5. Electricity Generation Source Disclosure  

E-Print Network [OSTI]

facility, the sum capacity of which does not exceed 30 megawatts. (4) Solar. For purposes1 Title 20, California Code of Regulations Article 5. Electricity Generation Source Disclosure that a retail seller offers to sell to consumers in California under terms and conditions specific to an offer

60

Concentrating Solar Power: Efficiently Leveraging Equilibrium Mechanisms for Engineering New Thermochemical Storage  

Broader source: Energy.gov [DOE]

The Concentrating Solar Power: Efficiently Leveraging Equilibrium Mechanisms for Engineering New Thermochemical Storage (CSP: ELEMENTS) funding program supports the development of thermochemical energy storage (TCES) systems that can validate a cost of less than or equal to $15 per kilowatt-hour-thermal (kWht) and operate at temperatures greater than or equal to 650 degrees Celsius. TCES presents opportunities for storing the sun's energy at high densities in the form of chemical bonds for use in utility-scale concentrating solar power (CSP) electricity generation. The SunShot Initiative funds six awardees for $10 million total for ELEMENTS.

Note: This page contains sample records for the topic "generation thermochemical code" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


61

SunShot Initiative: Integrated Solar Thermochemical Reaction System  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Integrated Solar Thermochemical Integrated Solar Thermochemical Reaction System to someone by E-mail Share SunShot Initiative: Integrated Solar Thermochemical Reaction System on Facebook Tweet about SunShot Initiative: Integrated Solar Thermochemical Reaction System on Twitter Bookmark SunShot Initiative: Integrated Solar Thermochemical Reaction System on Google Bookmark SunShot Initiative: Integrated Solar Thermochemical Reaction System on Delicious Rank SunShot Initiative: Integrated Solar Thermochemical Reaction System on Digg Find More places to share SunShot Initiative: Integrated Solar Thermochemical Reaction System on AddThis.com... Concentrating Solar Power Systems Components Competitive Awards CSP Research & Development Thermal Storage CSP Recovery Act Baseload CSP SunShot Multidisciplinary University Research Initiative

62

Lessons Learned: Devolping Thermochemical Cycles for Solar Heat Storage Applications  

Broader source: Energy.gov [DOE]

This presentation summarizes the introduction given by Bunsen Wong during the Thermochemical Energy Storage Workshop on January 8, 2013.

63

Automatic code generation enables nuclear gradient computations for fully internally contracted multireference theory  

E-Print Network [OSTI]

Analytical nuclear gradients for fully internally contracted complete active space second-order perturbation theory (CASPT2) are reported. This implementation has been realized by an automated code generator that can handle spin-free formulas for the CASPT2 energy and its derivatives with respect to variations of molecular orbitals and reference coefficients. The underlying complete active space self-consistent field and the so-called Z-vector equations are solved using density fitting. With full internal contraction the size of first-order wave functions scales polynomially with the number of active orbitals. The CASPT2 gradient program and the code generator are both publicly available. This work enables the CASPT2 geometry optimization of molecules as complex as those investigated by respective single-point calculations.

MacLeod, Matthew K

2015-01-01T23:59:59.000Z

64

NREL: Biomass Research - Thermochemical Conversion Capabilities  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Conversion Capabilities Conversion Capabilities NREL researchers are developing gasification and pyrolysis processes for the cost-effective thermochemical conversion of biomass to biofuels. Gasification-heating biomass with about one-third of the oxygen necessary for complete combustion-produces a mixture of carbon monoxide and hydrogen, known as syngas. Pyrolysis-heating biomass in the absence of oxygen-produces a liquid bio-oil. Both syngas and bio-oil can be used directly or can be converted to clean fuels and other valuable chemicals. Areas of emphasis in NREL's thermochemical conversion R&D are: Gasification and fuel synthesis R&D Pyrolysis R&D Thermochemical process integration. Gasification and Fuel Synthesis R&D Get the Adobe Flash Player to see this video.

65

Solar Thermochemical Hydrogen Production Research (STCH): Thermochemical Cycle Selection and Investment Priority  

Broader source: Energy.gov [DOE]

This Sandia National Laboratories report documents the evaluation of nine solar thermochemical reaction cycles for the production of hydrogen and identifies the critical path challenges to the commercial potential of each cycle.

66

SunShot Initiative: Baseload CSP Generation Integrated with Sulfur-Based  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

CSP Generation CSP Generation Integrated with Sulfur-Based Thermochemical Heat Storage to someone by E-mail Share SunShot Initiative: Baseload CSP Generation Integrated with Sulfur-Based Thermochemical Heat Storage on Facebook Tweet about SunShot Initiative: Baseload CSP Generation Integrated with Sulfur-Based Thermochemical Heat Storage on Twitter Bookmark SunShot Initiative: Baseload CSP Generation Integrated with Sulfur-Based Thermochemical Heat Storage on Google Bookmark SunShot Initiative: Baseload CSP Generation Integrated with Sulfur-Based Thermochemical Heat Storage on Delicious Rank SunShot Initiative: Baseload CSP Generation Integrated with Sulfur-Based Thermochemical Heat Storage on Digg Find More places to share SunShot Initiative: Baseload CSP Generation Integrated with Sulfur-Based Thermochemical Heat Storage on

67

Intro to NREL's Thermochemical Pilot Plant  

ScienceCinema (OSTI)

NREL's Thermochemical Pilot Plant converts biomass into higher hydrocarbon fuels and chemicals.NREL is researching biomass pyrolysis. The lab is examining how to upgrade bio-oils via stabilization. Along with this, NREL is developing the engineering system requirements for producing these fuels and chemicals at larger scales.

Magrini, Kim

2014-06-10T23:59:59.000Z

68

A Web Service Infrastructure for Thermochemical Data  

Science Journals Connector (OSTI)

A Web Service Infrastructure for Thermochemical Data ... At this time, DFT is only supported using either the Becke exchange with the Lee/Yang/Parr (LYP) correlation (BLYP) functional or the hybrid HF/Becke/LYP using VWN formula 5 (B3LYP) functional. ...

Christopher P. Paolini; Subrata Bhattacharjee

2008-06-11T23:59:59.000Z

69

2009 Thermochemical Conversion Platform Review Report  

Broader source: Energy.gov [DOE]

This document summarizes the recommendations and evaluations provided by an independent external panel of experts at the U.S. Department of Energy Biomass Programs Thermochemical Conversion platform review meeting, held on April 14-16, 2009, at the Sheraton Denver Downtown, Denver, Colorado.

70

The VOLNA code for the numerical modelling of tsunami waves: generation, propagation and inundation  

E-Print Network [OSTI]

A novel tool for tsunami wave modelling is presented. This tool has the potential of being used for operational purposes: indeed, the numerical VOLNA code is able to handle the complete life-cycle of a tsunami (generation, propagation and run-up along the coast). The algorithm works on unstructured triangular meshes and, thus, can be run in arbitrary complex domains. It is often the case since natural coasts tend to be of fractal shape [Sapoval et al, 2004]. This paper contains the detailed description of the finite volume scheme implemented in the code. We explain the numerical treatment of the wet/dry transition. This point is crucial for accurate run-up computation. Most existing tsunami codes use semi-empirical techniques at this stage, which are not always sufficient. The main reason is that people evacuation is decided on the base of inundation maps which are produced with this type of numerical tools. Finally we present several realistic test cases that partially validate our algorithm. Comparisons wit...

Dutykh, Denys; Dias, Frédéric

2010-01-01T23:59:59.000Z

71

Thermochemical Production of Fuels with Concentrated Solar Energy  

Science Journals Connector (OSTI)

This review article develops some of the underlying science for converting concentrated solar energy into chemical fuels and presents examples of solar thermochemical processes and...

Steinfeld, Aldo; Weimer, Alan W

2010-01-01T23:59:59.000Z

72

Thermochemical Ethanol via Indirect Gasification and Mixed Alcohol...  

Energy Savers [EERE]

Ethanol via Indirect Gasification and Mixed Alcohol Synthesis of Lignocellulosic Biomass Thermochemical Ethanol via Indirect Gasification and Mixed Alcohol Synthesis of...

73

Project Profile: Thermochemical Energy Storage for Stirling CSP...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

The thermochemical reactor produces a storable chemical product when the chemical energy content of a reacting fluid is increased. The chemical product can be used to...

74

A Continuous Solar Thermochemical Hydrogen Production Plant Design  

E-Print Network [OSTI]

Two, Mojave Desert, California [22] Solar thermal is not aSolar Two, Mojave Desert, California ..OF CALIFORNIA, SAN DIEGO A Continuous Solar Thermochemical

Luc, Wesley Wai

75

Project Profile: Thermochemical Heat Storage for CSP Based on...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

"Metal Oxide Based Thermochemical Energy Storage for Concentrated Solar Power - Thermodynamics and Parasitic Loads for Packed Bed Reactors," in Proceedings of 17th Annual Solar...

76

A Continuous Solar Thermochemical Hydrogen Production Plant Design  

E-Print Network [OSTI]

Hydrogen Production Plant Heat Exchangers Turbines Electrolyzer Pumps and Compressors NaCl Storage Separators Thermochemical Reactors + Chemical Absorber Figure 6.2: Equipment Cost

Luc, Wesley Wai

77

GENII (Generation II): The Hanford Environmental Radiation Dosimetry Software System: Volume 3, Code maintenance manual: Hanford Environmental Dosimetry Upgrade Project  

SciTech Connect (OSTI)

The Hanford Environmental Dosimetry Upgrade Project was undertaken to incorporate the internal dosimetry models recommended by the International Commission on Radiological Protection (ICRP) in updated versions of the environmental pathway analysis models used at Hanford. The resulting second generation of Hanford environmental dosimetry computer codes is compiled in the Hanford Environmental Dosimetry System (Generation II, or GENII). This coupled system of computer codes is intended for analysis of environmental contamination resulting from acute or chronic releases to, or initial contamination of, air, water, or soil, on through the calculation of radiation doses to individuals or populations. GENII is described in three volumes of documentation. This volume is a Code Maintenance Manual for the serious user, including code logic diagrams, global dictionary, worksheets to assist with hand calculations, and listings of the code and its associated data libraries. The first volume describes the theoretical considerations of the system. The second volume is a Users' Manual, providing code structure, users' instructions, required system configurations, and QA-related topics. 7 figs., 5 tabs.

Napier, B.A.; Peloquin, R.A.; Strenge, D.L.; Ramsdell, J.V.

1988-09-01T23:59:59.000Z

78

Solar Thermochemical Hydrogen Production Research (STCH): Thermochemical Cycle Selection and Investment Priority  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

1-3622 1-3622 Unlimited Release Printed May 2011 Solar Thermochemical Hydrogen Production Research (STCH) Thermochemical Cycle Selection and Investment Priority Robert Perret Prepared by Sandia National Laboratories Albuquerque, New Mexico 87185 and Livermore, California 94550 Sandia National Laboratories is a multi-program laboratory managed and operated by Sandia Corporation, a wholly owned subsidiary of Lockheed Martin Corporation, for the U.S. Department of Energy's National Nuclear Security Administration under contract DE-AC04-94AL85000. Approved for public release; further dissemination unlimited. 2 Issued by Sandia National Laboratories, operated for the United States Department of Energy by Sandia Corporation. NOTICE: This report was prepared as an account of work sponsored by an agency of the

79

NREL: Hydrogen and Fuel Cells Research - Thermochemical Processes  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Printable Version Printable Version Thermochemical Processes Photo of a researcher wearing a hardhat and examining a catalytic steam reformer. Catalytic steam reforming increases the overall yield of fuel gas from biomass. NREL's researchers have investigated the thermochemical conversion of renewable energy feedstocks since the lab's inception. Researchers are developing gasification and pyrolysis processes to convert biomass and its residues to hydrogen, fuels, chemicals, and power. Building on past successes, biomass is increasingly one of the best near-term options for renewable hydrogen production. Thermochemical Process R&D Research and development at NREL provides a fundamental understanding of the chemistry of biomass pyrolysis. This R&D includes stabilizing and

80

agentTool III: From Process Definition to Code Generation Juan C. Garcia-Ojeda Scott A. DeLoach Robby  

E-Print Network [OSTI]

13931393 agentTool III: From Process Definition to Code Generation Juan C. Garcia-Ojeda Scott A. DeTool III: From Process Definition to Code Generation, Juan C. Garca-Ojeda, Scott A. DeLoach, and Robby, Sierra, and Castelfranchi (eds.), May, 10­15., 2009, Budapest, Hungary, pp. XXX-XXX. Copyright © 2009

Deloach, Scott A.

Note: This page contains sample records for the topic "generation thermochemical code" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


81

Harmonizing Above Code Codes  

Broader source: Energy.gov (indexed) [DOE]

Harmonizing "Above Code" Harmonizing "Above Code" Codes Doug Lewin Executive Director, SPEER 6 Regional Energy Efficiency Organizations SPEER Members Texas grid facing an energy crisis * No new generation coming online * Old, inefficient coal-fired plants going offline * ERCOT CEO Trip Doggett said "We are very concerned about the significant drop in the reserve margin...we will be very tight on capacity next summer and have a repeat of this year's emergency procedures and conservation appeals." Higher codes needed to relieve pressure Building Codes are forcing change * 2012 IECC 30% higher than 2006 IECC * IRC, the "weaker code," will mirror IECC in 2012 * City governments advancing local codes with

82

Thermochemical comparisons of six Argonne premium coal samples  

Science Journals Connector (OSTI)

Thermochemical comparisons of six Argonne premium coal samples ... The rates of solvent swelling of the Argonne Premium Sample coals have been measured in various organic solvents at various temperatures. ...

Michael Gumkowski; Qitao Liu; Edward M. Arnett

1988-05-01T23:59:59.000Z

83

Workshop on the Fundamentals of Thermochemical Biomass Conversion  

Science Journals Connector (OSTI)

For the purposes of this workshop the term “fundamentals” was taken to mean the basic science (of a chemical and physical nature) underlying the engineering side of thermochemical biomass conversion. The variety ...

M. A. Connor; J. P. Diebold; K. Sjöström

1997-01-01T23:59:59.000Z

84

Webinar January 13: Highly Efficient Solar Thermochemical Reaction Systems  

Broader source: Energy.gov [DOE]

The Energy Department will present a live webinar entitled "Highly Efficient Solar Thermochemical Reaction Systems" on Tuesday, January 13, from 12:00 to 1:00 p.m. Eastern Standard Time.

85

Project Profile: Carbon Dioxide Shuttling Thermochemical Storage Using Strontium Carbonate  

Broader source: Energy.gov [DOE]

The Department of Energy's SunShot Initiative awarded University of Florida (UF) through the Concentrating Solar Power: Efficiently Leveraging Equilibrium Mechanisms for Engineering New Thermochemical Storage (CSP: ELEMENTS) funding program.

86

Evidence of magnetic isotope effects during thermochemical sulfate reduction  

E-Print Network [OSTI]

Thermochemical sulfate reduction experiments with simple amino acid and dilute concentrations of sulfate reveal significant degrees of mass-independent sulfur isotope fractionation. Enrichments of up to 13‰ for [superscript ...

Oduro, Harry D.

87

GENII Code | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

GENII Code GENII Code GENII is a second generation of environmental dosimetry computer code compiled in the Hanford Environmental Dosimetry System (Generation II). GENII provides a...

88

Testing of an advanced thermochemical conversion reactor system  

SciTech Connect (OSTI)

This report presents the results of work conducted by MTCI to verify and confirm experimentally the ability of the MTCI gasification process to effectively generate a high-quality, medium-Btu gas from a wider variety of feedstock and waste than that attainable in air-blown, direct gasification systems. The system's overall simplicity, due to the compact nature of the pulse combustor, and the high heat transfer rates attainable within the pulsating flow resonance tubes, provide a decided and near-term potential economic advantage for the MTCI indirect gasification system. The primary objective of this project was the design, construction, and testing of a Process Design Verification System for an indirectly heated, thermochemical fluid-bed reactor and a pulse combustor an an integrated system that can process alternative renewable sources of energy such as biomass, black liquor, municipal solid waste and waste hydrocarbons, including heavy oils into a useful product gas. The test objectives for the biomass portion of this program were to establish definitive performance data on biomass feedstocks covering a wide range of feedstock qualities and characteristics. The test objectives for the black liquor portion of this program were to verify the operation of the indirect gasifier on commercial black liquor containing 65 percent solids at several temperature levels and to characterize the bed carbon content, bed solids particle size and sulfur distribution as a function of gasification conditions. 6 refs., 59 figs., 29 tabs.

Not Available

1990-01-01T23:59:59.000Z

89

Development of one-dimensional computer code DESOPT for thermal hydraulic design of sodium-heated once through steam generators  

Science Journals Connector (OSTI)

Once-through Steam Generator (SG) is a critical component of Liquid Metal Fast Breeder Reactor (LMFBR) plant. It is a counter current heat exchanger, in which heat is transferred from the hot sodium flowing on the shell side to water/steam in tube side. High pressure subcooled water enters the SG tube from bottom, gets heated up to saturation, goes through nucleate boiling, dry out and post dry out heat transfer, getting converted to saturated steam and finally gets superheated. For this the process design needs to be carried out accurately. A computer code DESOPT has been developed for the process design of straight vertical, serpentine and helical geometries and validated against reported designs in literature. Recently a test facility to test a 5.5 MWt sodium heated steam generator has been commissioned. The predictions of the code have been compared with the measurements and found satisfactory. This paper brings out different heat transfer mechanisms in SG and describes the one-dimensional code, its validation based on literature and in-house tests and presents the results of comparison between predicted and actual operation at different part loads.

G. Vaidyanathan; A.L. Kothandaraman; L.S. Siva Kumar; V. Vinod; I.B. Noushad; K.K. Rajan; P. Kalyanasundaram

2010-01-01T23:59:59.000Z

90

Overview of Thermochemical Conversion Technology of Biomass and Wastes in Japan  

Science Journals Connector (OSTI)

Compared with the research activity of biochemical conversion, that of thermochemical conversion of biomass and organic wastes in Japan is still ... Trade and Industry(MITI). Thermochemical processing of biomass ...

Shin-ya Yokoyama

1993-01-01T23:59:59.000Z

91

Geodynamic and seismic constraints on the thermochemical structure and dynamics of convection in the deep mantle  

Science Journals Connector (OSTI)

...Brodholt and B. J. Wood Geodynamic and seismic constraints on the thermochemical structure...by this viscosity peak. geodynamics|seismic tomography|mantle viscosity|three-dimensional...anomalies|mantle convection| Geodynamic and seismic constraints on the thermochemical structure...

2002-01-01T23:59:59.000Z

92

SunShot Initiative: Integrated Solar Thermochemical Reaction System  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Integrated Solar Thermochemical Reaction System Integrated Solar Thermochemical Reaction System PNNL logo Photo of cylinder-shaped device with a wider, white base that slims to a metallic tip. Pacific Northwest National Laboratory is developing a prototype solar thermochemical reaction system. Pacific Northwest National Laboratory, under the 2012 SunShot Concentrating Solar Power (CSP) R&D funding opportunity announcement (FOA), is creating a new CSP method for hybridization with fossil-fuel plants. The system uses solar energy to drive a chemical reaction that produces a gas capable of offsetting the need for fossil fuels in traditional power plants. Approach The research team is working to significantly advance the technology readiness level of a CSP system based on parabolic dish concentrators and thermochemical reaction systems that provide a solar thermochemical augment of at least 20% to a chemical fuel (i.e., methane from natural gas or biogas) for use in a modified natural-gas combined-cycle (NGCC) power plant.

93

Status report on multigroup cross section generation code development for high-fidelity deterministic neutronics simulation system.  

SciTech Connect (OSTI)

Under the fast reactor simulation program launched in April 2007, development of an advanced multigroup cross section generation code was initiated in July 2007, in conjunction with the development of the high-fidelity deterministic neutron transport code UNIC. The general objectives are to simplify the existing multi-step schemes and to improve the resolved and unresolved resonance treatments. Based on the review results of current methods and the fact that they have been applied successfully to fast critical experiment analyses and fast reactor designs for last three decades, the methodologies of the ETOE-2/MC{sup 2}-2/SDX code system were selected as the starting set of methodologies for multigroup cross section generation for fast reactor analysis. As the first step for coupling with the UNIC code and use in a parallel computing environment, the MC{sup 2}-2 code was updated by modernizing the memory structure and replacing old data management package subroutines and functions with FORTRAN 90 based routines. Various modifications were also made in the ETOE-2 and MC{sup 2}-2 codes to process the ENDF/B-VII.0 data properly. Using the updated ETOE-2/MC{sup 2}-2 code system, the ENDF/B-VII.0 data was successfully processed for major heavy and intermediate nuclides employed in sodium-cooled fast reactors. Initial verification tests of the MC{sup 2}-2 libraries generated from ENDF/B-VII.0 data were performed by inter-comparison of twenty-one group infinite dilute total cross sections obtained from MC{sup 2}-2, VIM, and NJOY. For almost all nuclides considered, MC{sup 2}-2 cross sections agreed very well with those from VIM and NJOY. Preliminary validation tests of the ENDF/B-VII.0 libraries of MC{sup 2}-2 were also performed using a set of sixteen fast critical benchmark problems. The deterministic results based on MC{sup 2}-2/TWODANT calculations were in good agreement with MCNP solutions within {approx}0.25% {Delta}{rho}, except a few small LANL fast assemblies. Relative to the MCNP solution, the MC{sup 2}-2/TWODANT results overestimated the multiplication factor by 0.22 {approx} 0.35% {Delta}{rho} for these small systems with very hard neutron spectrum. Comparisons of measured and calculated values for the fission reaction rate ratios of Godiva and Jezebel assemblies also showed that the MC{sup 2}-2/TWODANT results agreed well with measurements within 2.7%. From a series of methodology review and ENDF/B-VII.0 data processing, several improvement needs to enhance accuracy were also identified for the ETOE-2/MC{sup 2}-2 code system, including the multigroup slowing-down solution for whole-energy range, proper treatment for anisotropy of inelastic scattering, improved evaluation of inelastic and high-order anisotropic scattering source in RABANL calculations.

Yang, W. S.; Lee, C. H. (Nuclear Engineering Division) [Nuclear Engineering Division

2008-05-16T23:59:59.000Z

94

Biomass Thermochemical Conversion Program. 1983 Annual report  

SciTech Connect (OSTI)

Highlights of progress achieved in the program of thermochemical conversion of biomass into clean fuels during 1983 are summarized. Gasification research projects include: production of a medium-Btu gas without using purified oxygen at Battelle-Columbus Laboratories; high pressure (up to 500 psia) steam-oxygen gasification of biomass in a fluidized bed reactor at IGT; producing synthesis gas via catalytic gasification at PNL; indirect reactor heating methods at the Univ. of Missouri-Rolla and Texas Tech Univ.; improving the reliability, performance, and acceptability of small air-blown gasifiers at Univ. of Florida-Gainesville, Rocky Creek Farm Gasogens, and Cal Recovery Systems. Liquefaction projects include: determination of individual sequential pyrolysis mechanisms at SERI; research at SERI on a unique entrained, ablative fast pyrolysis reactor for supplying the heat fluxes required for fast pyrolysis; work at BNL on rapid pyrolysis of biomass in an atmosphere of methane to increase the yields of olefin and BTX products; research at the Georgia Inst. of Tech. on an entrained rapid pyrolysis reactor to produce higher yields of pyrolysis oil; research on an advanced concept to liquefy very concentrated biomass slurries in an integrated extruder/static mixer reactor at the Univ. of Arizona; and research at PNL on the characterization and upgrading of direct liquefaction oils including research to lower oxygen content and viscosity of the product. Combustion projects include: research on a directly fired wood combustor/gas turbine system at Aerospace Research Corp.; adaptation of Stirling engine external combustion systems to biomass fuels at United Stirling, Inc.; and theoretical modeling and experimental verification of biomass combustion behavior at JPL to increase biomass combustion efficiency and examine the effects of additives on combustion rates. 26 figures, 1 table.

Schiefelbein, G.F.; Stevens, D.J.; Gerber, M.A.

1984-08-01T23:59:59.000Z

95

CHASM : Static Analysis and Automatic Code Generation for Improved Fortran 90 and C++ Interoperability /  

SciTech Connect (OSTI)

The relative simplicity and design of the Fortran 77 language allowed for reasonable interoperability with C and C++. Fortran 90, on the other hand, introduces several new and complex features to the language that severely degrade the ability of a mixed Fortran and C++ development environment. Major new items added to Fortran are user-defined types, pointers, and several new array features. Each of these items introduce difficulties because the Fortran 90 procedure calling convention was not designed with interoperability as an important design goal. For example, Fortran 90 arrays are passed by array descriptor, which is not specified by the language and therefore depends on a particular compiler implementation. This paper describes a set of software tools that parses Fortran 90 source code and produces mediating interface functions which allow access to Fortran 90 libraries from C++.

Lindlan, K. A. (Kathie A.); Mohr, B. (Bernd); Striegnitz, J. (Jorg); Rasmussen, C. E. (Craig E.)

2001-01-01T23:59:59.000Z

96

On-the-fly generation of differential resonance scattering probability distribution functions for Monte Carlo codes  

SciTech Connect (OSTI)

Current Monte Carlo codes use one of three models to model neutron scattering in the epithermal energy range: (1) the asymptotic scattering model, (2) the free gas scattering model, or (3) the S({alpha},{beta}) model, depending on the neutron energy and the specific Monte Carlo code. The free gas scattering model assumes the scattering cross section is constant over the neutron energy range, which is usually a good approximation for light nuclei, but not for heavy nuclei where the scattering cross section may have several resonances in the epithermal region. Several researchers in the field have shown that using the free gas scattering model in the vicinity of the resonances in the lower epithermal range can under-predict resonance absorption due to the up-scattering phenomenon. Existing methods all involve performing the collision analysis in the center-of-mass frame, followed by a conversion back to the laboratory frame. In this paper, we will present a new sampling methodology that (1) accounts for the energy-dependent scattering cross sections in the collision analysis and (2) acts in the laboratory frame, avoiding the conversion to the center-of-mass frame. The energy dependence of the scattering cross section was modeled with even-ordered polynomials to approximate the scattering cross section in Blackshaw's equations for the moments of the differential scattering PDFs. These moments were used to sample the outgoing neutron speed and angle in the laboratory frame on-the-fly during the random walk of the neutron. Results for criticality studies on fuel pin and fuel assembly calculations using these methods showed very close comparison to results using the reference Doppler-broadened rejection correction (DBRC) scheme. (authors)

Sunny, E. E.; Martin, W. R. [University of Michigan, 2355 Bonisteel Boulevard, Ann Arbor MI 48109 (United States)

2013-07-01T23:59:59.000Z

97

Mercury's thermo-chemical evolution from numerical models constrained  

E-Print Network [OSTI]

Mercury's thermo-chemical evolution from numerical models constrained by MESSENGER observations Globe de Paris, France #12;Basics facts about Mercury · Semi-major axis: 0.39 AU · 3:2 spin Earth!) · Black body temperature: 440 K #12;Exploration of Mercury Mariner10 ·First spacecraft to use

Cerveny, Vlastislav

98

2011 Biomass Program Platform Peer Review: Thermochemical Conversion  

Broader source: Energy.gov [DOE]

"This document summarizes the recommendations and evaluations provided by an independent external panel of experts at the U.S. Department of Energy Biomass Programs Thermochemical Conversion Platform Review meeting, held on February 16…18, 2011, at the Crowne Plaza Hotel in Downtown Denver, Colorado."

99

Thermochemical data for CVD modeling from ab initio calculations  

SciTech Connect (OSTI)

Ab initio electronic-structure calculations are combined with empirical bond-additivity corrections to yield thermochemical properties of gas-phase molecules. A self-consistent set of heats of formation for molecules in the Si-H, Si-H-Cl, Si-H-F, Si-N-H and Si-N-H-F systems is presented, along with preliminary values for some Si-O-C-H species.

Ho, P. [Sandia National Labs., Albuquerque, NM (United States); Melius, C.F. [Sandia National Labs., Livermore, CA (United States)

1993-12-31T23:59:59.000Z

100

Thermochemical Process Development Unit: Researching Fuels from Biomass, Bioenergy Technologies (Fact Sheet)  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Highlights Highlights Thermochemical conversion technologies convert biomass and its residues to fuels and chemicals using gasification and pyrolysis. Gasification entails heating biomass and results in a mixture of carbon monoxide and hydrogen, known as syngas. Pyrolysis, which is heating biomass in the absence of oxygen, produces liquid pyrolysis oil. Both syngas and pyrolysis oil can be chemically converted into clean, renewable transportation fuels and chemicals. The Thermochemical Process Development Unit (TCPDU) at the National Renewable Energy Laboratory (NREL) is a unique facility dedicated to researching thermochemical processes to produce fuels from biomass. Thermochemical processes include gasification and pyrolysis-processes used to convert

Note: This page contains sample records for the topic "generation thermochemical code" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


101

Solar Thermochemical Advanced Reactor System, Wins R&D 100 Award...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

National Laboratory, the Solar Thermochemical Advanced Reactor System, or STARS, converts natural gas and sunlight into a more energy-rich fuel called syngas, which power plants...

102

Thermochemical Ethanol via Indirect Gasification and Mixed Alcohol Synthesis of Lignocellulosic Biomass  

Broader source: Energy.gov [DOE]

This process design and technoeconomic evaluation addresses the conversion of biomass to ethanol via thermochemical pathways that are expected to be demonstrated at the pilot level by 2012.

103

Project Profile: Thermochemical Heat Storage for CSP Based on Multivalent Metal Oxides  

Broader source: Energy.gov [DOE]

General Atomics (GA), under the Thermal Storage FOA, is developing a high-density thermochemical heat storage system based on solid metal oxides.

104

CO2 Reforming of Methane in a Molten Carbonate Salt Bath for Use in Solar Thermochemical Processes  

Science Journals Connector (OSTI)

From the point of view of the chemical pathway for this process, several high-temperature endothermic reactions have been investigated as solar high-temperature thermochemical processes, such as a multistep water-splitting reaction,4-6 coal gasification,7,8 and natural gas reforming. ... The calorifically upgraded product of syngas can be stored and transported to be combusted in a conventional gas turbine (GC) or a combined cycle (CC), to generate electricity with a high conversion efficiency (up to 55% in a modern, large CC). ... The dry effluent gases were analyzed by gas chromatography equipment (Shimadzu, GC-4C) with a TCD detector. ...

T. Kodama; T. Koyanagi; T. Shimizu; Y. Kitayama

2000-11-17T23:59:59.000Z

105

IEEE TRANSACTIONS ON NEURAL NETWORKS, VOL. 17, NO. 3, MAY 2006 771 On Algorithmic Rate-Coded AER Generation  

E-Print Network [OSTI]

IEEE TRANSACTIONS ON NEURAL NETWORKS, VOL. 17, NO. 3, MAY 2006 771 On Algorithmic Rate-Coded AER of frames into the spike event-based representation known as the address-event-rep- resentation (AER). In this paper we concentrate on rate-coded AER. The problem is addressed as an algorithmic problem, in which

Barranco, Bernabe Linares

106

Published in proceedings of the 1996 EUROSIM Int'l Conf., June 10--12, 1996, Delft, The Netherlands, pp. 421--428. Automatic Code Generation for High Performance Computing in  

E-Print Network [OSTI]

, The Netherlands, pp. 421--428. Automatic Code Generation for High Performance Computing in Environmental Modeling Robert van Engelen a#+ , Lex Wolters a+# , and Gerard Cats b# a High Performance Computing Division, Dept: cats@knmi.nl In this paper we will discuss automatic code generation for high performance computer

van Engelen, Robert A.

107

Review and analysis of the 1980-1989 biomass thermochemical conversion program  

SciTech Connect (OSTI)

In the period between 1980 and 1989, the U.S. Department of Energy (DOE) sponsored research and development projects through its Biomass Thermochemical Conversion (BTC) Program. Thermochemical conversion technologies use elevated temperatures to convert biomass into more useful forms of energy such as fuel gases or transportation fuels. The BTC Program included a wide range of biomass conversion projects in the areas of gasification, pyrolysis, liquefaction, and combustion. This work formed the basis of the present DOE research and development efforts on advanced liquid fuel and power generation systems. At the beginning of Fiscal Year 1989, the management of the BTC Program was transferred from Pacific Northwest Laboratory (PNL) to National Renewable Energy Laboratory (NREL, formerly Solar Energy Research Institute). This document presents a summary of the research which was performed under the BTC Program during the 1981-1989 time frame. The document consists of an analysis of the research projects which were funded by the BTC Program and a bibliography of published documents. This work will help ensure that information from PNL`s BTC Program is available to those interested in biomass conversion technologies. The background of the BTC Program is discussed in the first chapter of this report. In addition, a brief summary of other related biomass research and development programs funded by the U.S. Department of Energy and others is presented with references where additional information can be found. The remaining chapters of the report present a detailed summary of the research projects which were funded by the BTC Program. The progress which was made on each project is summarized, the overall impact on biomass conversion is discussed, and selected references are provided.

Stevens, D.J.

1994-09-01T23:59:59.000Z

108

462 IEEE TRANSACTIONS ON INFORMATION THEORY, VOL. 44, NO. 2, MARCH 1998 Source Codes as Random Number Generators  

E-Print Network [OSTI]

Number Generators Karthik Visweswariah, Student Member, IEEE, Sanjeev R. Kulkarni, Senior Member, IEEE, and Sergio Verd´u, Fellow, IEEE Abstract--A random number generator generates fair coin flips by processing deterministically an arbitrary source of nonideal randomness. An optimal random number generator generates

Verdú, Sergio

109

Graphical models for coding and computation  

E-Print Network [OSTI]

n, k, d ) linear code over F q , with generator matrix G andrepresents the generator matrix of a random linear code. Asrepresents the generator matrix of a random linear code. As

Santhi, Nandakishore

2006-01-01T23:59:59.000Z

110

Modeling of a Multitube High-Temperature Solar Thermochemical Reactor for Hydrogen Production  

SciTech Connect (OSTI)

A solar reactor consisting of a cavity-receiver containing an array of tubular absorbers is considered for performing the ZnO-dissociation as part of a two-step H{sub 2}O-splitting thermochemical cycle using concentrated solar energy. The continuity, momentum, and energy governing equations that couple the rate of heat transfer to the Arrhenius-type reaction kinetics are formulated for an absorbing-emitting-scattering particulate media and numerically solved using a computational fluid dynamics code. Parametric simulations were carried out to examine the influence of the solar flux concentration ratio (3000-6000 suns), number of tubes (1-10), ZnO mass flow rate (2-20 g/min per tube), and ZnO particle size (0.06-1 {mu}m) on the reactor's performance. The reaction extent reaches completion within 1 s residence time at above 2000 K, yielding a solar-to-chemical energy conversion efficiency of up to 29%.

Haussener, S.; Hirsch, D.; Perkins, C.; Weimer, A.; Lewandowski, A.; Steinfeld, A.

2009-05-01T23:59:59.000Z

111

Radiation-Generating Devices Guide for Use with Title 10, Code of Federal Regulations, Part 835, Occupational Radiation Protection  

Broader source: Directives, Delegations, and Requirements [Office of Management (MA)]

For use with Title 10, Code of Federal Regulations, Part 835, Occupational Radiation Protection. This Guide provides an acceptable methodology for establishing and operating a sealed radioactive source accountability and control program that will comply with U.S. Department of Energy (DOE) requirements specified in Title 10 of the Code of Federal Regulations (CFR), Part 835, Occupational Radiation Protection (DOE 1998a), hereinafter referred to as 10 CFR 835. In particular, this Guide provides guidance for achieving compliance with subpart M of 10 CFR 835. Canceled by DOE G 441.1-1B.

1999-04-15T23:59:59.000Z

112

Thermochemical Modeling of the Uranium-Cerium-Oxygen System  

SciTech Connect (OSTI)

The objective of the Fuel Cycle R&D Program, Advanced Fuels campaign is to provide the research and development necessary to develop low loss, high quality nuclear fuels for ultra-high burnup reactor operation. Primary work in this area will be focused on the ceramic and metallic fuel systems. The goal of the current work is to enhance the understanding of ceramic nuclear fuel thermochemistry to support fuel research and development efforts. The thermochemical behavior of oxide nuclear fuel under irradiation is dependent on the oxygen to metal ratio (O:M). In fluorite-structured fuel, the actinide metal cation is bonded with {approx}2 oxygen atoms on a crystal lattice and as the metal atoms fission, fission fragments and free oxygen are created. The resulting fission fragments will contain some oxide forming elements, however these are insufficient to bind to all the liberated oxygen and therefore, there is an average increase in O:M with fuel burnup. Some of the fission products also form species that will migrate to and react with the cladding surface in a phenomenon known as Fuel Clad Chemical Interaction (FCCI). Cladding corrosion is life-limiting so it is desirable to understand influencing factors, such as oxide thermochemistry, which can be used to guide the design and fabrication of higher burn up fuel. A phased oxide fuel thermochemical model development effort is underway within the Advanced Fuels Campaign. First models of binary oxide systems are developed. For nuclear fuel system this means U-O and transuranic systems such as Pu-O, Np-O and Am-O. Next, the binary systems will be combined to form pseudobinary systems such as U-Pu-O, etc. The model development effort requires the use of data to allow optimization based on known thermochemical parameters as a function of composition and temperature. Available data is mined from the literature and supplemented by experimental work as needed. Due to the difficulty of performing fuel fabrication development with actinide materials, fundamental studies with uranium are performed using surrogate materials as stand-ins for transuranic elements. In most cases, cerium can be used as a suitable substitute for plutonium when performing O:M and sintering kinetics studies because of identical valence states. Differences exist between the magnitude of reported thermodynamic data of (U,Pu)O{sub x} and (U,Ce)O{sub x}, however the change in oxygen potential versus O:M follows the same trend for both systems. Cerium is also a major fission product element, and thus understanding its behavior in fuel is an important issue as well.

Voit, Stewart L [ORNL; Besmann, Theodore M [ORNL

2010-10-01T23:59:59.000Z

113

Moving bed reactor for solar thermochemical fuel production  

DOE Patents [OSTI]

Reactors and methods for solar thermochemical reactions are disclosed. Embodiments of reactors include at least two distinct reactor chambers between which there is at least a pressure differential. In embodiments, reactive particles are exchanged between chambers during a reaction cycle to thermally reduce the particles at first conditions and oxidize the particles at second conditions to produce chemical work from heat. In embodiments, chambers of a reactor are coupled to a heat exchanger to pre-heat the reactive particles prior to direct exposure to thermal energy with heat transferred from reduced reactive particles as the particles are oppositely conveyed between the thermal reduction chamber and the fuel production chamber. In an embodiment, particle conveyance is in part provided by an elevator which may further function as a heat exchanger.

Ermanoski, Ivan

2013-04-16T23:59:59.000Z

114

An experimental test plan for the characterization of molten salt thermochemical properties in heat transport systems  

SciTech Connect (OSTI)

Molten salts are considered within the Very High Temperature Reactor program as heat transfer media because of their intrinsically favorable thermo-physical properties at temperatures starting from 300 C and extending up to 1200 C. In this context two main applications of molten salt are considered, both involving fluoride-based materials: as primary coolants for a heterogeneous fuel reactor core and as secondary heat transport medium to a helium power cycle for electricity generation or other processing plants, such as hydrogen production. The reference design concept here considered is the Advanced High Temperature Reactor (AHTR), which is a large passively safe reactor that uses solid graphite-matrix coated-particle fuel (similar to that used in gas-cooled reactors) and a molten salt primary and secondary coolant with peak temperatures between 700 and 1000 C, depending upon the application. However, the considerations included in this report apply to any high temperature system employing fluoride salts as heat transfer fluid, including intermediate heat exchangers for gas-cooled reactor concepts and homogenous molten salt concepts, and extending also to fast reactors, accelerator-driven systems and fusion energy systems. The purpose of this report is to identify the technical issues related to the thermo-physical and thermo-chemical properties of the molten salts that would require experimental characterization in order to proceed with a credible design of heat transfer systems and their subsequent safety evaluation and licensing. In particular, the report outlines an experimental R&D test plan that would have to be incorporated as part of the design and operation of an engineering scaled facility aimed at validating molten salt heat transfer components, such as Intermediate Heat Exchangers. This report builds on a previous review of thermo-physical properties and thermo-chemical characteristics of candidate molten salt coolants that was generated as part of the same project [1]. However, this work focuses on two materials: the LiF-BeF2 eutectic (67 and 33 mol%, respectively, also known as flibe) as primary coolant and the LiF-NaF-KF eutectic (46.5, 11.5, and 52 mol%, respectively, also known as flinak) as secondary heat transport fluid. At first common issues are identified, involving the preparation and purification of the materials as well as the development of suitable diagnostics. Than issues specific to each material and its application are considered, with focus on the compatibility with structural materials and the extension of the existing properties database.

Pattrick Calderoni

2010-09-01T23:59:59.000Z

115

Project Profile: High Performance Reduction/Oxidation Metal Oxides for Thermochemical Energy Storage  

Broader source: Energy.gov [DOE]

The Department of Energy's Solar Energy Technology Office made an award to Sandia National Lab (Sandia) through the Concentrating Solar Power: Efficiently Leveraging Equilibrium Mechanisms for Engineering New Thermochemical Storage (CSP: ELEMENTS) funding program.

116

Project Profile: High-Temperature Thermochemical Storage with Redox-Stable Perovskites for Concentrating Solar Power  

Broader source: Energy.gov [DOE]

The Department of Energy's SunShot Initiative made an award to Colorado School of Mines (CSM) through the Concentrating Solar Power: Efficiently Leveraging Equilibrium Mechanisms for Engineering New Thermochemical Storage (CSP: ELEMENTS) funding program.

117

Project Profile: Regenerative Carbonate-Based Thermochemical Energy Storage System for Concentrating Solar Power  

Broader source: Energy.gov [DOE]

The Department of Energy’s SunShot Initiative awarded Southern Research Institute (SRI) through the Concentrating Solar Power: Efficiently Leveraging Equilibrium Mechanisms for Engineering New Thermochemical Storage (CSP: ELEMENTS) funding program.

118

Project Profile: Engineering a Novel High Temperature Metal Hydride Thermochemical Storage  

Broader source: Energy.gov [DOE]

The Department of Energy's SunShot Initiative awarded to Pacific Northwest National Lab (PNNL) through the Concentrating Solar Power: Efficiently Leveraging Equilibrium Mechanisms for Engineering New Thermochemical Storage (CSP: ELEMENTS) funding program.

119

Solar Thermochemical Advanced Reactor System, Wins R&D 100 Award  

Office of Energy Efficiency and Renewable Energy (EERE)

Solar Thermochemical Advanced Reactor System, or STARS, converts natural gas and sunlight into a more energy-rich fuel called syngas, which power plants can burn to make electricity.

120

Development of a Solar-Thermal ZnO/Zn Water-Splitting Thermochemical...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Development of a Solar-thermal ZnOZn Water-splitting Thermochemical Cycle Final Report (DE-PS36-03GO93007 - Subcontract RF-05-SHGR-006) Alan W. Weimer (PI), Christopher Perkins,...

Note: This page contains sample records for the topic "generation thermochemical code" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


121

Thermochemical conversion of fuels into hydrogen-containing gas using recuperative heat of internal combustion engines  

Science Journals Connector (OSTI)

The problem of the thermochemical recuperation of heat from the exhaust gases of internal combustion engines (ICEs) as a method of ... the steam conversion of oxygen-containing fuels into syngas were developed, a...

V. A. Kirillov; A. B. Shigarov; N. A. Kuzin…

2013-09-01T23:59:59.000Z

122

System and method for investigating sub-surface features of a rock formation with acoustic sources generating coded signals  

DOE Patents [OSTI]

A system and a method for investigating rock formations includes generating, by a first acoustic source, a first acoustic signal comprising a first plurality of pulses, each pulse including a first modulated signal at a central frequency; and generating, by a second acoustic source, a second acoustic signal comprising a second plurality of pulses. A receiver arranged within the borehole receives a detected signal including a signal being generated by a non-linear mixing process from the first-and-second acoustic signal in a non-linear mixing zone within the intersection volume. The method also includes-processing the received signal to extract the signal generated by the non-linear mixing process over noise or over signals generated by a linear interaction process, or both.

Vu, Cung Khac; Nihei, Kurt; Johnson, Paul A; Guyer, Robert; Ten Cate, James A; Le Bas, Pierre-Yves; Larmat, Carene S

2014-12-30T23:59:59.000Z

123

Thermo-chemical conversion of dairy waste based biomass through direct firing  

E-Print Network [OSTI]

i THERMO-CHEMICAL CONVERSION OF DAIRY WASTE BASED BIOMASS THROUGH DIRECT FIRING A Thesis by NICHOLAS THOMAS CARLIN Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements... for the degree of MASTER OF SCIENCE December 2005 Major Subject: Mechanical Engineering ii THERMO-CHEMICAL CONVERSION OF DAIRY WASTE BASED BIOMASS THROUGH DIRECT FIRING A Thesis by NICHOLAS THOMAS CARLIN...

Carlin, Nicholas Thomas

2007-04-25T23:59:59.000Z

124

Third millenium ideal gas and condensed phase thermochemical database for combustion (with update from active thermochemical tables).  

SciTech Connect (OSTI)

The thermochemical database of species involved in combustion processes is and has been available for free use for over 25 years. It was first published in print in 1984, approximately 8 years after it was first assembled, and contained 215 species at the time. This is the 7th printed edition and most likely will be the last one in print in the present format, which involves substantial manual labor. The database currently contains more than 1300 species, specifically organic molecules and radicals, but also inorganic species connected to combustion and air pollution. Since 1991 this database is freely available on the internet, at the Technion-IIT ftp server, and it is continuously expanded and corrected. The database is mirrored daily at an official mirror site, and at random at about a dozen unofficial mirror and 'finger' sites. The present edition contains numerous corrections and many recalculations of data of provisory type by the G3//B3LYP method, a high-accuracy composite ab initio calculation. About 300 species are newly calculated and are not yet published elsewhere. In anticipation of the full coupling, which is under development, the database started incorporating the available (as yet unpublished) values from Active Thermochemical Tables. The electronic version now also contains an XML file of the main database to allow transfer to other formats and ease finding specific information of interest. The database is used by scientists, educators, engineers and students at all levels, dealing primarily with combustion and air pollution, jet engines, rocket propulsion, fireworks, but also by researchers involved in upper atmosphere kinetics, astrophysics, abrasion metallurgy, etc. This introductory article contains explanations of the database and the means to use it, its sources, ways of calculation, and assessments of the accuracy of data.

Burcat, A.; Ruscic, B.; Chemistry; Technion - Israel Inst. of Tech.

2005-07-29T23:59:59.000Z

125

SummitView 1.0: a code to automatically generate 3D solid models of surface micro-machining based MEMS designs.  

SciTech Connect (OSTI)

This report describes the SummitView 1.0 computer code developed at Sandia National Laboratories. SummitView is designed to generate a 3D solid model, amenable to visualization and meshing, that represents the end state of a microsystem fabrication process such as the SUMMiT (Sandia Ultra-Planar Multilevel MEMS Technology) V process. Functionally, SummitView performs essentially the same computational task as an earlier code called the 3D Geometry modeler [1]. However, because SummitView is based on 2D instead of 3D data structures and operations, it has significant speed and robustness advantages. As input it requires a definition of both the process itself and the collection of individual 2D masks created by the designer and associated with each of the process steps. The definition of the process is contained in a special process definition file [2] and the 2D masks are contained in MEM format files [3]. The code is written in C++ and consists of a set of classes and routines. The classes represent the geometric data and the SUMMiT V process steps. Classes are provided for the following process steps: Planar Deposition, Planar Etch, Conformal Deposition, Dry Etch, Wet Etch and Release Etch. SummitView is built upon the 2D Boolean library GBL-2D [4], and thus contains all of that library's functionality.

McBride, Cory L. (Elemental Technologies, American Fort, UT); Yarberry, Victor R.; Schmidt, Rodney Cannon; Meyers, Ray J. (Elemental Technologies, American Fort, UT)

2006-11-01T23:59:59.000Z

126

Thermochemical measurements and assessment of the phase diagrams in the system Y-Ba-Cu-O  

SciTech Connect (OSTI)

The aim of this project was to provide a self-consistent set of Gibbs energy data for all phases in the system Y-Ba-Cu-O. Experimental thermochemical investigations by differential thermal analysis (DTA), thermogravimetry (TG), electromotive force measurements (EMF), oxygen coulometric titration (OCT), drop and solution calorimetry, and conventional phase analysis (annealing, quenching, and X-ray diffraction [XRD]) as well as ab initio calculations of interaction energies for the 123 phase have been carried out. The experimental information (phase equilibria, heat capacity, enthalpies of formation, oxygen partial pressures, and so forth) has been used in computer-based assessments of the Gibbs energies. These data have been employed to generate phase diagrams by way of equilibrium computations. All binary and ternary subsystems have been fully assessed. For the quaternary system a dataset covering the subsolidus range has been derived. Applications of the data to practical questions, such as the production of 123 superconductors by an MOCVD process, the producibility of metallic precursors, and the oxidation of a copper-enriched stoichiometric oxide precursor, are demonstrated.

Boudene, A.; Mohammad, A. [RWTH Aachen (Germany). Lehrstuhl fuer Theoretische Huettenkunde; Hack, K. [GTT Technologies, Herzogenrath (Germany)] [and others

1996-04-01T23:59:59.000Z

127

Environmental impacts of thermochemical biomass conversion. Final report  

SciTech Connect (OSTI)

Thermochemical conversion in this study is limited to fast pyrolysis, upgrading of fast pyrolysis oils, and gasification. Environmental impacts of all types were considered within the project, but primary emphasis was on discharges to the land, air, and water during and after the conversion processes. The project discussed here is divided into five task areas: (1) pyrolysis oil analysis; (2) hydrotreating of pyrolysis oil; (3) gas treatment systems for effluent minimization; (4) strategic analysis of regulatory requirements; and (5) support of the IEA Environmental Systems Activity. The pyrolysis oil task was aimed at understanding the oil contaminants and potential means for their removal. The hydrotreating task was undertaken to better define one potential means for both improving the quality of the oil but also removing contaminants from the oil. Within Task 3, analyses were done to evaluate the results of gasification product treatment systems. Task 4 was a review and collection of regulatory requirements which would be applicable to the subject processes. The IEA support task included input to and participation in the IEA Bioenergy activity which directly relates to the project subject. Each of these tasks is described along with the results. Conclusions and recommendations from the overall project are given.

Elliott, D.C.; Hart, T.R.; Neuenschwander, G.G.; McKinney, M.D.; Norton, M.V.; Abrams, C.W. [Pacific Northwest Lab., Richland, WA (United States)

1995-06-01T23:59:59.000Z

128

Webinar January 13: Highly Efficient Solar Thermochemical Reaction...  

Energy Savers [EERE]

Plants Home About the Fuel Cell Technologies Office Hydrogen Production Hydrogen Delivery Hydrogen Storage Fuel Cells Technology Validation Manufacturing Safety, Codes, and...

129

Copper(II)-mediated thermolysis of alginates: a model kinetic study on the influence of metal ions in the thermochemical processing of macroalgae  

Science Journals Connector (OSTI)

...of terrestrial biomass is well documented...thermochemical conversion of marine-derived...of influence of biomass mineral matter in thermochemical conversion of short rotation...for the thermo-conversion of biomass into fuels and...

2013-01-01T23:59:59.000Z

130

Thermochemical Kinetics for Multireference Systems: Addition Reactions of Ozone  

SciTech Connect (OSTI)

The 1,3-dipolar cycloadditions of ozone to ethyne and ethene provide extreme examples of multireference singlet-state chemistry, and they are examined here to test the applicability of several approaches to thermochemical kinetics of systems with large static correlation. Four different multireference diagnostics are applied to measure the multireference characters of the reactants, products, and transition states; all diagnostics indicate significant multireference character in the reactant portion of the potential energy surfaces. We make a more complete estimation of the effect of quadruple excitations than was previously available, and we use this with CCSDT/CBS estimation of Wheeler et al. (Wheeler, S. E.; Ess, D. H.; Houk, K. N. J. Phys. Chem. A 2008, 112, 1798.) to make new best estimates of the van der Waals association energy, the barrier height, and the reaction energy to form the cycloadduct for both reactions. Comparing with these best estimates, we present comprehensive mean unsigned errors for a variety of coupled cluster, multilevel, and density functional methods. Several computational aspects of multireference reactions are considered: (i) the applicability of multilevel theory, (ii) the convergence of coupled cluster theory for reaction barrier heights, (iii) the applicability of completely renormalized coupled cluster methods to multireference systems, (iv) the treatment by density functional theory, (v) the multireference perturbation theory for multireference reactions, and (vi) the relative accuracy of scaling-type multilevel methods as compared with additive ones. It is found that scaling-type multilevel methods do not perform better than the additive-type multilevel methods. Among the 48 tested density functionals, only M05 reproduces the best estimates within their uncertainty. Multireference perturbation theory based on the complete-active-space reference wave functions constructed using a small number of reaction-specific active orbitals gives accurate forward barrier heights; however, it significantly underestimates reaction energies.

Zhao, Yan; Tishchenko, Oksana; Gour, Jeffrey R.; Li, Wei; Lutz, Jesse; Piecuch, Piotr; Truhlar, Donald G.

2009-05-14T23:59:59.000Z

131

Carbothermal reduction of alumina: Thermochemical equilibrium calculations and experimental investigation  

Science Journals Connector (OSTI)

The production of aluminum by the electrolytic Hall–Héroult process suffers from high energy requirements, the release of perfluorocarbons, and vast greenhouse gas emissions. The alternative carbothermic reduction of alumina, while significantly less energy-intensive, is complicated by the formation of aluminum carbide and oxycarbides. In the present work, the formation of Al, as well as Al2OC, Al4O4C, and Al4C3 was proven by experiments on mixtures of Al2O3 and activated carbon in an Ar atmosphere submitted to heat pulses by an induction furnace. Thermochemical equilibrium calculations indicate that the Al2O3-reduction using carbon as reducing agent is favored in the presence of limited amounts of oxygen. The temperature threshold for the onset of aluminum production is lowered, the formation of Al4C3 is decreased, and the yield of aluminum is improved. Significant further enhancement in the carbothermic reduction of Al2O3 is predicted by using CH4 as the reducing agent, again in the presence of limited amounts of oxygen. In this case, an important by-product is syngas, with a H2/CO molar ratio of about 2, suitable for methanol or Fischer–Tropsch syntheses. Under appropriate temperature and stoichiometry of reactants, the process can be designed to be thermo-neutral. Using alumina, methane, and oxygen as reagents, the co-production of aluminum with syngas, to be converted to methanol, predicts fuel savings of about 68% and CO2 emission avoidance of about 91%, vis-à-vis the conventional production of Al by electrolysis and of methanol by steam reforming of CH4. When using carbon (such as coke or petcoke) as reducing agent, fuel savings of 66% and CO2 emission avoidance of 15% are predicted. Preliminary evaluation for the proposed process indicates favorable economics, and the required high temperatures process heat is readily attainable using concentrated solar energy.

M. Halmann; A. Frei; A. Steinfeld

2007-01-01T23:59:59.000Z

132

Thermochemical Ethanol via Direct Gasification and Mixed Alcohol Synthesis of Lignocellulosic Biomass  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Thermochemical Ethanol via Thermochemical Ethanol via Direct Gasification and Mixed Alcohol Synthesis of Lignocellulosic Biomass A. Dutta and S.D. Phillips Technical Report NREL/TP-510-45913 July 2009 Technical Report Thermochemical Ethanol via NREL/TP-510-45913 Direct Gasification and Mixed July 2009 Alcohol Synthesis of Lignocellulosic Biomass A. Dutta and S.D. Phillips Prepared under Task No. BB07.3710 National Renewable Energy Laboratory 1617 Cole Boulevard, Golden, Colorado 80401-3393 303-275-3000 * www.nrel.gov NREL is a national laboratory of the U.S. Department of Energy Office of Energy Efficiency and Renewable Energy Operated by the Alliance for Sustainable Energy, LLC Contract No. DE-AC36-08-GO28308 NOTICE This report was prepared as an account of work sponsored by an agency of the United States government.

133

A hybrid thermochemical-electrolytic process for hydrogen production based on the Reverse Deacon Reaction.  

SciTech Connect (OSTI)

Development has been initiated on a three-reaction, hybrid thermochemical-electrolytic process for splitting water into hydrogen and oxygen. This process can be run at 500 C, making it suitable for linking to nuclear reactors that run colder than the very highest temperature gas cooled reactors. This feature also makes the materials requirements less stringent than for high temperature cycles, many of which require temperatures in the range of 800-900 C. The process consists of three reactions - two thermochemical and one electrolytic. The thermochemical reactions sum to the reverse Deacon reaction. The electrolytic step involves the electrolysis of anhydrous HCl. The estimated energy savings for this process relative to electrolysis of water are in the vicinity of 15%, due to the low energy requirements of anhydrous HCl electrolysis. Preliminary experimental results indicate that a silicalite-supported catalyst for the reverse Deacon reaction has the potential of promoting fast reaction kinetics and long-term stability of the solids.

Simpson, M. F.; Herrmann, S. D.; Boyle, B. D.; Engineering Technology

2006-08-01T23:59:59.000Z

134

Heavy Metal Removal from Sewage Sludge Ash by Thermochemical Treatment with Gaseous Hydrochloric acid  

Science Journals Connector (OSTI)

Division 4.3 Waste Treatment and Remedial Engineering, BAM Federal Institute for Materials Research and Testing, Unter den Eichen 87, D-12205 Berlin ... Therefore, thermochemical investigations were carried out with focus on the performance of HCl-gas as Cl-donor in comparison to the well investigated solid Cl-donors magnesium chloride and calcium chloride. ... However, Kuderna(11) found that the Pcit test showed worse correlation with the results of pot experiments carried out with thermochemically treated SSA whereas the Pnac test showed very good correlation in the same investigation. ...

Christian Vogel; Christian Adam

2011-08-05T23:59:59.000Z

135

Solar Thermochemical Fuels Production: Solar Thermochemical Fuel Production via a Novel Lowe Pressure, Magnetically Stabilized, Non-volatile Iron Oxide Looping Process  

SciTech Connect (OSTI)

HEATS Project: The University of Florida is developing a windowless high-temperature chemical reactor that converts concentrated solar thermal energy to syngas, which can be used to produce gasoline. The overarching project goal is lowering the cost of the solar thermochemical production of syngas for clean and synthetic hydrocarbon fuels like petroleum. The team will develop processes that rely on water and recycled CO2 as the sole feed-stock, and concentrated solar radiation as the sole energy source, to power the reactor to produce fuel efficiently. Successful large-scale deployment of this solar thermochemical fuel production could substantially improve our national and economic security by replacing imported oil with domestically produced solar fuels.

None

2011-12-19T23:59:59.000Z

136

SunShot Initiative: Baseload CSP Generation Integrated with Sulfur-Based  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

CSP Generation Integrated with Sulfur-Based Thermochemical Heat Storage CSP Generation Integrated with Sulfur-Based Thermochemical Heat Storage General Atomics logo Graphic of a diagram of squares and circles connected by arrows. Sulfur-based TES can compensate for diurnal and seasonal insolation fluctuations. General Atomics, under the Baseload CSP FOA, is demonstrating the engineering feasibility of using a sulfur-based thermochemical cycle to store heat from a CSP plant and support baseload power generation. Approach There are three main project objectives under this award: Study the sulfur generating disproportionation reaction and develop it into a practical engineering process step. Carry out preliminary process components design and experimental validation. The engineering data will be used for process integration between the CSP plant, the sulfur processing and storage plant, and the electricity generation unit.

137

Comparison of closed and open thermochemical processes, for long-term thermal energy storage applications  

E-Print Network [OSTI]

1 Comparison of closed and open thermochemical processes, for long-term thermal energy storage-term thermal storage, second law analysis * Corresponding author: E-mail: mazet@univ-perp.fr Nomenclature c Energy Tecnosud, Rambla de la thermodynamique, 66100 Perpignan, France b Université de Perpignan Via

Paris-Sud XI, Université de

138

Thermochemical H 2- Production with Sulfur-Iodine Process and Solar Energy Adaptation  

Science Journals Connector (OSTI)

A thermochemical cycle for hydrogen production is a process in which water is used as a feedstock along with a non-fossil high temperature heat source to produce H2 and O2 as product gases. The water splitting pr...

K. F. Knoche

1991-01-01T23:59:59.000Z

139

Support for Cost Analyses on Solar-Driven High Temperature Thermochemical Water-Splitting Cycles  

Broader source: Energy.gov [DOE]

This report summarizes the application of chemical process flowsheet analyses and cash flow analyses using DOE's H2A methodology to develop near-term (2015) and longer-term (2025) cost projections for eight solar thermochemical hydrogen production reaction cycles.

140

Prediction of oxy-coal flame stand-off using high-fidelity thermochemical models  

E-Print Network [OSTI]

Prediction of oxy-coal flame stand-off using high-fidelity thermochemical models and the one Abstract An Eulerian one-dimensional turbulence (ODT) model is applied to simulate oxy-coal combustion temperature and mixing rate on oxy-coal flame is simulated and discussed where flame stand-off is used

Note: This page contains sample records for the topic "generation thermochemical code" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


141

A Continuous Solar Thermochemical Hydrogen Production Plant Design  

E-Print Network [OSTI]

generated internally from waste heat. The only xv input intogenerated internally from waste heat. The SA process will bewas designed to utilize waste heat from a nuclear power

Luc, Wesley Wai

142

Tokamak Systems Code  

SciTech Connect (OSTI)

The FEDC Tokamak Systems Code calculates tokamak performance, cost, and configuration as a function of plasma engineering parameters. This version of the code models experimental tokamaks. It does not currently consider tokamak configurations that generate electrical power or incorporate breeding blankets. The code has a modular (or subroutine) structure to allow independent modeling for each major tokamak component or system. A primary benefit of modularization is that a component module may be updated without disturbing the remainder of the systems code as long as the imput to or output from the module remains unchanged.

Reid, R.L.; Barrett, R.J.; Brown, T.G.; Gorker, G.E.; Hooper, R.J.; Kalsi, S.S.; Metzler, D.H.; Peng, Y.K.M.; Roth, K.E.; Spampinato, P.T.

1985-03-01T23:59:59.000Z

143

Thermochemical Analysis of U.S. Argonne Premium Coal Samples by Time-Resolved Pyrolysis-Field ionization Mass Spectrometry  

Science Journals Connector (OSTI)

Analytical pyrolysis techniques are widely used for the thermochemical analysis of coals and coal-derived products. During heating, complex mixtures of chemical substances are released from coal by distillatio...

Norbert Simmleit; Hans-Rolf Schulten; Yongseung Yun…

1992-01-01T23:59:59.000Z

144

Chapter 1 - Reactor configurations and design parameters for thermochemical conversion of biomass into fuels, energy, and chemicals  

Science Journals Connector (OSTI)

Abstract This chapter describes reactors for thermochemical conversion of lignocellulosic biomass into fuels, energy, and chemicals. The chapter covers basic definitions and concepts involved in biofuels and thermochemical conversion of biomass, and it also includes more advanced topics such as the main reactor configurations currently in use for thermochemical technologies, important parameters for reactor design, discussion of how parameters affect reactor performance, and several examples and case studies. The focus is on fast pyrolysis and gasification systems. The topics discussed include energy and carbon efficiencies, convenience of operation and scale-up, and several other parameters related to reactor design. After reading this chapter, the reader will understand the main characteristics of reactors for thermochemical conversion of biomass, their strengths, and their weaknesses for specific applications.

Fernando L.P. Resende

2014-01-01T23:59:59.000Z

145

Project Profile: Thermochemical Storage with Anhydrous Ammonia: Optimizing the Synthesis Reactor for Direct Production of Supercritical Steam  

Broader source: Energy.gov [DOE]

The Department of Energy's SunShot Initiative has made an award to University of California, Los Angeles (UCLA) through the Concentrating Solar Power: Efficiently Leveraging Equilibrium Mechanisms for Engineering New Thermochemical Storage (CSP: ELEMENTS) funding program.

146

Data Coding  

Science Journals Connector (OSTI)

Data coding is the classification of data and assignment of a representation for that data, or the assignment of a specific code...

2008-01-01T23:59:59.000Z

147

Baseload CSP Generation Integrated with Sulfur-Based Thermochemical Heat Storage- FY13 Q1  

Broader source: Energy.gov [DOE]

This document summarizes the progress of this General Atomics project, funded by SunShot, for the first quarter of fiscal year 2013.

148

Baseload CSP Generation Integrated with Sulfur-Based Thermochemical Heat Storage- FY12 Q4  

Broader source: Energy.gov [DOE]

This document summarizes the progress of this General Atomics project, funded by SunShot, for the fourth quarter of fiscal year 2012.

149

Baseload CSP Generation Integrated with Sulfur-Based Thermochemical Heat Storage- FY13 Q2  

Broader source: Energy.gov [DOE]

This document summarizes the progress of this General Atomics project, funded by SunShot, for the second quarter of fiscal year 2013.

150

Evaluation energy efficiency of bioconversion knot rejects to ethanol in comparison to other thermochemically pretreated biomass  

Science Journals Connector (OSTI)

Rejects from sulfite pulp mill that otherwise would be disposed of by incineration were converted to ethanol by a combined physical–biological process that was comprised of physical refining and simultaneous saccharification and fermentation (SSF). The energy efficiency was evaluated with comparison to thermochemically pretreated biomass, such as those pretreated by dilute acid (DA) and sulfite pretreatment to overcome recalcitrance of lignocelluloses (SPORL). It was observed that the structure deconstruction of rejects by physical refining was indispensable to effective bioconversion but more energy intensive than that of thermochemically pretreated biomass. Fortunately, the energy consumption was compensated by the reduced enzyme dosage and the elevated ethanol yield. Furthermore, adjustment of disk-plates gap led to reduction in energy consumption with negligible influence on ethanol yield. In this context, energy efficiency up to 717.7% was achieved for rejects, much higher than that of SPORL sample (283.7%) and DA sample (152.8%).

Zhaojiang Wang; Menghua Qin; J.Y. Zhu; Guoyu Tian; Zongquan Li

2013-01-01T23:59:59.000Z

151

Current Research on Thermochemical Conversion of Biomass at the National Renewable Energy Laboratory  

SciTech Connect (OSTI)

The thermochemical research platform at the National Bioenergy Center, National Renewable Energy Laboratory (NREL) is primarily focused on conversion of biomass to transportation fuels using non-biological techniques. Research is conducted in three general areas relating to fuels synthesis via thermochemical conversion by gasification: (1) Biomass gasification fundamentals, chemistry and mechanisms of tar formation; (2) Catalytic tar reforming and syngas cleaning; and (3) Syngas conversion to mixed alcohols. In addition, the platform supports activities in both technoeconomic analysis (TEA) and life cycle assessment (LCA) of thermochemical conversion processes. Results from the TEA and LCA are used to inform and guide laboratory research for alternative biomass-to-fuels strategies. Detailed process models are developed using the best available material and energy balance information and unit operations models created at NREL and elsewhere. These models are used to identify cost drivers which then form the basis for research programs aimed at reducing costs and improving process efficiency while maintaining sustainability and an overall net reduction in greenhouse gases.

Baldwin, R. M.; Magrini-Bair, K. A.; Nimlos, M. R.; Pepiot, P.; Donohoe, B. S.; Hensley, J. E.; Phillips, S. D.

2012-04-05T23:59:59.000Z

152

Thermochemically recuperated and steam cooled gas turbine system  

DOE Patents [OSTI]

A gas turbine system in which the expanded gas from the turbine section is used to generate the steam in a heat recovery steam generator and to heat a mixture of gaseous hydrocarbon fuel and the steam in a reformer. The reformer converts the hydrocarbon gas to hydrogen and carbon monoxide for combustion in a combustor. A portion of the steam from the heat recovery steam generator is used to cool components, such as the stationary vanes, in the turbine section, thereby superheating the steam. The superheated steam is mixed into the hydrocarbon gas upstream of the reformer, thereby eliminating the need to raise the temperature of the expanded gas discharged from the turbine section in order to achieve effective conversion of the hydrocarbon gas.

Viscovich, Paul W. (Longwood, FL); Bannister, Ronald L. (Winter Springs, FL)

1995-01-01T23:59:59.000Z

153

Thermochemically recuperated and steam cooled gas turbine system  

DOE Patents [OSTI]

A gas turbine system is described in which the expanded gas from the turbine section is used to generate the steam in a heat recovery steam generator and to heat a mixture of gaseous hydrocarbon fuel and the steam in a reformer. The reformer converts the hydrocarbon gas to hydrogen and carbon monoxide for combustion in a combustor. A portion of the steam from the heat recovery steam generator is used to cool components, such as the stationary vanes, in the turbine section, thereby superheating the steam. The superheated steam is mixed into the hydrocarbon gas upstream of the reformer, thereby eliminating the need to raise the temperature of the expanded gas discharged from the turbine section in order to achieve effective conversion of the hydrocarbon gas. 4 figs.

Viscovich, P.W.; Bannister, R.L.

1995-07-11T23:59:59.000Z

154

Code constructions and code families for nonbinary quantum stabilizer code  

E-Print Network [OSTI]

Stabilizer codes form a special class of quantum error correcting codes. Nonbinary quantum stabilizer codes are studied in this thesis. A lot of work on binary quantum stabilizer codes has been done. Nonbinary stabilizer codes have received much...

Ketkar, Avanti Ulhas

2005-11-01T23:59:59.000Z

155

15 - Chemical production from lignocellulosic biomass: thermochemical, sugar and carboxylate platforms  

Science Journals Connector (OSTI)

Abstract: Lignocellulose is abundant, inexpensive, and renewable. Further, it can replace fossil fuels as our primary source for chemicals and energy. To transition from fossil fuels to lignocellulose-based chemicals and fuels, an economically viable commercial biorefinery must be developed. This chapter reviews three major chemical platforms for a biorefinery. The thermochemical platform thermally degrades biomass into gaseous, liquid, and solid components. The sugar platform utilizes enzymes and/or chemicals to create sugars. The carboxylate platform ferments biomass into carboxylic acids/salts. The intermediate products of these three platforms serve as a ‘biocrude’ for the production of chemicals and fuels from lignocellulose.

A.D.Smith; M. Landoll; M. Falls; M.T. Holtzapple

2010-01-01T23:59:59.000Z

156

Oxygen exchange materials for solar thermochemical splitting of H2O and CO2: a review  

Science Journals Connector (OSTI)

This review summarizes state of the art metal oxide materials used in two-step thermochemical redox cycles for the production of H2 and CO from H2O and CO2 using concentrated solar energy. Advantages and disadvantages of both stoichiometric (e.g. iron oxide based cycles) and nonstoichiometric (e.g. ceria based cycles) materials are discussed in the context of thermodynamics, chemical kinetics, and material stability. Finally, a perspective aimed at future materials development and requirements necessary for advances of process efficiencies is discussed.

Jonathan R. Scheffe; Aldo Steinfeld

2014-01-01T23:59:59.000Z

157

Corrosive Resistant Diamond Coatings for the Acid Based Thermo-Chemical Hydrogen Cycles  

SciTech Connect (OSTI)

This project was designed to test diamond, diamond-like and related materials in environments that are expected in thermochemical cycles. Our goals were to build a High Temperature Corrosion Resistance (HTCR) test stand and begin testing the corrosive properties of barious materials in a high temperature acidic environment in the first year. Overall, we planned to test 54 samples each of diamond and diamond-like films (of 1 cm x 1 cm area). In addition we use a corrosion acceleration method by treating the samples at a temperature much larger than the expected operating temperature. Half of the samples will be treated with boron using the FEDOA process.

Mark A. Prelas

2009-06-25T23:59:59.000Z

158

Engineering Database of Liquid Salt Thermophysical and Thermochemical Properties  

SciTech Connect (OSTI)

The purpose of this report is to provide a review of thermodynamic and thermophysical properties of candidate molten salt coolants, which may be used as a primary coolant within a nuclear reactor or heat transport medium from the Next Generation Nuclear Plant (NGNP) to a processing plant, for example, a hydrogen-production plant. Thermodynamic properties of four types of molten salts, including LiF-BeF2 (67 and 33 mol%, respectively; also known as FLiBe), LiF-NaF-KF (46.5, 11.5, and 52 mol%, also known as FLiNaK), and KCl-MgCl2 (67 and 33 mol%), and sodium nitrate-sodium nitrite-potassium nitrate (NaNO3–NaNO2–KNO3, (7-49-44 or 7-40-53 mol%) have been investigated. Limitations of existing correlations to predict density, viscosity, specific heat capacity, surface tension, and thermal conductivity, were identified. The impact of thermodynamic properties on the heat transfer, especially Nusselt number was also discussed. Stability of the molten salts with structural alloys and their compatibility with the structural alloys was studied. Nickel and alloys with dense Ni coatings are effectively inert to corrosion in fluorides but not so in chlorides. Of the chromium containing alloys, Hastelloy N appears to have the best corrosion resistance in fluorides, while Haynes 230 was most resistant in chloride. In general, alloys with increasing carbon and chromium content are increasingly subject to corrosion by the fluoride salts FLiBe and FLiNaK, due to attack and dissolution of the intergranular chromium carbide. Future research to obtain needed information was identified.

Manohar S. Sohal; Matthias A. Ebner; Piyush Sabharwall; Phil Sharpe

2010-03-01T23:59:59.000Z

159

Efficient, transparent, and comprehensive runtime code manipulation  

E-Print Network [OSTI]

This thesis addresses the challenges of building a software system for general-purpose runtime code manipulation. Modern applications, with dynamically-loaded modules and dynamically-generated code, are assembled at runtime. ...

Bruening, Derek L. (Derek Lane), 1976-

2004-01-01T23:59:59.000Z

160

Generation of Software Test Data from the Design Specification Using Heuristic Techniques. Exploring the UML State Machine Diagrams and GA Based Heuristic Techniques in the Automated Generation of Software Test Data and Test Code.  

E-Print Network [OSTI]

??Software testing is a tedious and very expensive undertaking. Automatic test data generation is, therefore, proposed in this research to help testers reduce their work… (more)

Doungsa-ard, Chartchai

2011-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "generation thermochemical code" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


161

Usage Codes Vessel name  

E-Print Network [OSTI]

Usage Codes 1 5 2 6 3 7 4 8 Vessel name Int'l radio call sign (IRCS) Generator Other: Max hoisting Sonar Power (Kw) KHz: KHz: VMS Usage Y / N GPS: Internal / external KHz: KHz: Ratio Accuracy (m Incinerator: Burned on board: Net sensors Hull mounted / towed Wired / wireless Y / N Y / N Usage Manufacturer

162

Possibility of renewable energy production and CO2 mitigation by thermochemical liquefaction of microalgae  

Science Journals Connector (OSTI)

The energy balance and CO2 mitigating effect of a liquid fuel production process from microalgae using thermochemical liquefaction were studied. Thermochemical liquefaction has the advantage of treating wet materials compared with direct combustion, gasification and pyrolysis, because it does not require a drying process. The yield of liquid fuel produced from Botryococcus braunii and its lower heating value were high compared with those of Dunaliella tertiolecta; therefore, the energy inputs for cultivation and separation of B. braunii were calculated to be smaller than those of D. tertiolecta. The energy input for fertilizers of B. braunii was also smaller than that of D. tertiolecta. Based on these differences, the liquefaction process using B. braunii was suggested to produce net renewable energy, but not that with D. tertiolecta. If a 100 MW thermal plant using coal would be replaced by liquid fuel produced from B. braunii, the quantity of CO2 mitigation could be 1.5×105 t year?1 and 8.4×103 ha of microalgal cultivation area could be necessary.

S Sawayama; T Minowa; S-Y Yokoyama

1999-01-01T23:59:59.000Z

163

Sewage sludge ash to phosphorus fertiliser: Variables influencing heavy metal removal during thermochemical treatment  

SciTech Connect (OSTI)

The aim of this study was to improve the removal of heavy metals from sewage sludge ash by a thermochemical process. The resulting detoxified ash was intended for use as a raw material rich in phosphorus (P) for inorganic fertiliser production. The thermochemical treatment was performed in a rotary kiln where the evaporation of relevant heavy metals was enhanced by additives. The four variables investigated for process optimisation were treatment temperature, type of additive (KCl, MgCl{sub 2}) and its amount, as well as type of reactor (directly or indirectly heated rotary kiln). The removal rates of Cd, Cr, Cu, Ni, Pb, Zn and of Ca, P and Cl were investigated. The best overall removal efficiency for Cd, Cu, Pb and Zn could be found for the indirectly heated system. The type of additive was critical, since MgCl{sub 2} favours Zn- over Cu-removal, while KCl acts conversely. The use of MgCl{sub 2} caused less particle abrasion from the pellets in the kiln than KCl. In the case of the additive KCl, liquid KCl - temporarily formed in the pellets - acted as a barrier to heavy metal evaporation as long as treatment temperatures were not sufficiently high to enhance its reaction or evaporation.

Mattenberger, H.; Fraissler, G. [Austrian Bioenergy Centre GmbH, Inffeldgasse 21b, 8010 Graz (Austria); Brunner, T. [Austrian Bioenergy Centre GmbH, Inffeldgasse 21b, 8010 Graz (Austria); BIOS BIOENERGIESYSTEME GmbH, Inffeldgasse 21b, 8010 Graz (Austria)], E-mail: thomas.brunner@abc-energy.at; Herk, P. [ARP GmbH, Johann Sacklgasse 65-67, 8700 Leoben (Austria); Hermann, L. [Austrian Bioenergy Centre GmbH, Inffeldgasse 21b, 8010 Graz (Austria); ASH DEC Umwelt AG, Donaufelderstrasse 101/4/5, 1210 Wien (Austria); Obernberger, I. [Austrian Bioenergy Centre GmbH, Inffeldgasse 21b, 8010 Graz (Austria); BIOS BIOENERGIESYSTEME GmbH, Inffeldgasse 21b, 8010 Graz (Austria)

2008-12-15T23:59:59.000Z

164

Thermochemical process for seasonal storage of solar energy: characterization and modeling of a high-density reactive bed  

E-Print Network [OSTI]

1 Thermochemical process for seasonal storage of solar energy: characterization and modeling to maximize the use of solar energy for house heating, it is interesting to valorize the solar energy excess efficiency, and a 20 per cent share of renewable). The use of renewable energies and in particular solar

Paris-Sud XI, Université de

165

Reduced languages as -generators Sandrine JULIA1  

E-Print Network [OSTI]

Reduced languages as -generators Sandrine JULIA1 and TRAN Vinh Duc2 1 Universit´e de Nice - Sophia decision problem: "Is a rational -language generated by a code ?" Since 1994, the codes admit a char" easy-to-obtain minimal -generators in order to obtain codes as -generators. Introduction Our research

Paris-Sud XI, Université de

166

Department Codes  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Department Codes Department Codes Code Organization BO Bioscience Department BU Business Development & Analysis Office DI Business Operations NC Center for Functional Nanomaterials CO Chemistry Department AD Collider Accelerator Department PA Community, Education, Government and Public Affairs CC Computational Science Center PM Condensed Matter Physics and Materials Science Department CI Counterintelligence AE Department of Energy DC Directorate - Basic Energy Sciences DK Directorate - CEGPA DE Directorate - Deputy Director for Operations DO Directorate - Director's Office DH Directorate - Environment, Safety and Health DF Directorate - Facilities and Operations DA Directorate - Global and Regional Solutions DB Directorate - Nuclear and Particle Physics DL Directorate - Photon Sciences

167

High Performance “Reach” Codes  

E-Print Network [OSTI]

Jim Edelson New Buildings Institute A Growing Role for Codes and Stretch Codes in Utility Programs Clean Air Through Energy Efficiency November 9, 2011 ESL-KT-11-11-39 CATEE 2011, Dallas, Texas, Nov. 7 ? 9, 2011 New Buildings Institute ESL..., Nov. 7 ? 9, 2011 ?31? Flavors of Codes ? Building Codes Construction Codes Energy Codes Stretch or Reach Energy Codes Above-code programs Green or Sustainability Codes Model Codes ?Existing Building? Codes Outcome-Based Codes ESL-KT-11...

Edelson, J.

2011-01-01T23:59:59.000Z

168

Coded Data  

Science Journals Connector (OSTI)

An individual is given a number and all that individual's data is encoded under that number so that the individual cannot be recognized. Data are then collated, analyzed and reported on ... the code to the pers...

2008-01-01T23:59:59.000Z

169

GENII Code | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

GENII Code GENII Code GENII Code GENII is a second generation of environmental dosimetry computer code compiled in the Hanford Environmental Dosimetry System (Generation II). GENII provides a state-of-the-art, technically peer-reviewed, documented set of programs for calculating radiation dose and risk from radio nuclides released into the environment. The GENII System includes capabilities for calculating radiation doses following postulated chronic and acute releases. Version 2.10 is currently being evaluated for inclusion in the Central Registry. For more information on GENII to: http://radiologicalsciences.pnl.gov/resources/hardware.asp The GENII code-specific guidance report has been issued identifying applicable regimes in accident analysis, default inputs, and special

170

Chapter 15 - Catalytic Thermochemical Processes for Biomass Conversion to Biofuels and Chemicals  

Science Journals Connector (OSTI)

Abstract Biomass is the most abundant and biorenewable resource with great potential for sustainable production of chemicals and fuels. Thermochemical conversion technologies (pyrolysis, gasification and hydrothermal liquefaction) are a promising option for transforming biomass feedstocks into liquid oils and chemicals. In the article, for the thermal process of biomass for biofuels and chemicals, the effect of reaction conditions, reactors, solvents and catalysts on the yield and distribution of the products are reviewed. Fast pyrolysis of cellulose is primarily conducted over catalysts with proper acidity/basicity and has undergone many pilot tests. Gasification is typically conducted over supported noble metal catalysts and has been profiled as being CO2-neutral, having a high potential to provide power, chemicals and fuels. Catalytically hydrothermal liquefaction of biomass produces a very complex mixture of liquid products; therefore, novel technology for separation and extraction of downstream products from hydrothermal liquefaction of lignocellulosic biomass need to be developed.

Lin Mei Wu; Chun Hui Zhou; Dong Shen Tong; Wei Hua Yu

2014-01-01T23:59:59.000Z

171

Techno-economic Analysis for the Thermochemical Conversion of Biomass to Liquid Fuels  

SciTech Connect (OSTI)

). This study is part of an ongoing effort within the Department of Energy to meet the renewable energy goals for liquid transportation fuels. The objective of this report is to present a techno-economic evaluation of the performance and cost of various biomass based thermochemical fuel production. This report also documents the economics that were originally developed for the report entitled “Biofuels in Oregon and Washington: A Business Case Analysis of Opportunities and Challenges” (Stiles et al. 2008). Although the resource assessments were specific to the Pacific Northwest, the production economics presented in this report are not regionally limited. This study uses a consistent technical and economic analysis approach and assumptions to gasification and liquefaction based fuel production technologies. The end fuels studied are methanol, ethanol, DME, SNG, gasoline and diesel.

Zhu, Yunhua; Tjokro Rahardjo, Sandra A.; Valkenburt, Corinne; Snowden-Swan, Lesley J.; Jones, Susanne B.; Machinal, Michelle A.

2011-06-01T23:59:59.000Z

172

Solar Thermochemical Fuels Production: Solar Fuels via Partial Redox Cycles with Heat Recovery  

SciTech Connect (OSTI)

HEATS Project: The University of Minnesota is developing a solar thermochemical reactor that will efficiently produce fuel from sunlight, using solar energy to produce heat to break chemical bonds. The University of Minnesota is envisioning producing the fuel by using partial redox cycles and ceria-based reactive materials. The team will achieve unprecedented solar-to-fuel conversion efficiencies of more than 10% (where current state-of-the-art efficiency is 1%) by combined efforts and innovations in material development, and reactor design with effective heat recovery mechanisms and demonstration. This new technology will allow for the effective use of vast domestic solar resources to produce precursors to synthetic fuels that could replace gasoline.

None

2011-12-19T23:59:59.000Z

173

Thermo-chemical dynamics and chemical quasi-equilibrium of plasmas in thermal non-equilibrium  

SciTech Connect (OSTI)

We examine both processes of ionization by electron and heavy-particle impact in spatially uniform plasmas at rest in the absence of external forces. A singular perturbation analysis is used to study the following physical scenario, in which thermal relaxation becomes much slower than chemical reactions. First, electron-impact ionization is investigated. The dynamics of the system rapidly becomes close to a slow dynamics manifold that allows for defining a unique chemical quasi-equilibrium for two-temperature plasmas and proving that the second law of thermodynamics is satisfied. Then, all ionization reactions are taken into account simultaneously, leading to a surprising conclusion: the inner layer for short time scale (or time boundary layer) directly leads to thermal equilibrium. Global thermo-chemical equilibrium is reached within a short time scale, involving only chemical reactions, even if thermal relaxation through elastic collisions is assumed to be slow.

Massot, Marc [Laboratoire EM2C, UPR 288 CNRS - Ecole Centrale Paris (France); Graille, Benjamin [Laboratoire de Mathematiques d'Orsay, UMR 8628 CNRS - Universite Paris-Sud (France); Magin, Thierry E. [Aeronautics and Aerospace Department, von Karman Institute for Fluid Dynamics (Belgium)

2011-05-20T23:59:59.000Z

174

A Study of the Theoretical Potential of Thermochemical Exhaust Heat Recuperation for Internal Combustion Engines  

SciTech Connect (OSTI)

We present a detailed thermodynamic analysis of thermochemical recuperation (TCR) applied to an idealized internal combustion engine with single-stage work extraction. Results for several different fuels are included. For a stoichiometric mixture of methanol and air, TCR can increase the estimated ideal engine Second Law efficiency by about 3% for constant pressure reforming and over 5% for constant volume reforming. For ethanol and isooctane the estimated Second Law efficiency increases for constant volume reforming are 9% and 11%, respectively. The Second Law efficiency improvements from TCR result primarily from the higher intrinsic exergy of the reformed fuel and pressure boost associated with gas mole increase. Reduced combustion irreversibility may also yield benefits for future implementations of combined cycle work extraction.

Chakravarthy, Veerathu K [ORNL] [ORNL; Daw, C Stuart [ORNL] [ORNL; Pihl, Josh A [ORNL] [ORNL; Conklin, Jim [ORNL] [ORNL

2010-01-01T23:59:59.000Z

175

Thermochemical Solar Energy Storage Via Redox Oxides: Materials and Reactor/Heat Exchanger Concepts  

Science Journals Connector (OSTI)

Abstract Thermochemical Storage of solar heat exploits the heat effects of reversible chemical reactions for the storage of solar energy. Among the possible reversible gas-solid chemical reactions, the utilization of a pair of redox reactions of multivalent solid oxides can be directly coupled to CSP plants employing air as the heat transfer fluid bypassing the need for a separate heat exchanger. The present work concerns the development of thermochemical storage systems based on such oxide-based redox materials and in particular on cobalt oxide; in the one hand by tailoring their heat storage/release capability and on the other hand via their incorporation in proper reactor/heat exchanger devices. In this respect the first stage of the work involved parametric testing of cobalt oxide compositions via Thermo-Gravimetric Analysis to comparatively investigate the temperature range for cyclic oxidation-reduction and optimize the cycle conditions for maximum reduction and re-oxidation extent. Subsequently, two reactor concepts for the coupling of solar energy to the redox reactions have been implemented and tested. These reactor concepts include in one hand structured ceramic reactors/heat exchangers based on redox-oxide-coated honeycombs and on the other hand powder-fed, solar-heated, rotary kiln reactors. The two reactor concepts were tested within non-solar-aided lab-scale and solar- aided campaigns, respectively. The feasibility of both concepts was shown and good chemical conversions were achieved. The experiments pointed out the challenging points related to the manufacture of pilot-scale reactors/heat exchangers with enhanced heat storage capacity. A numerical model using commercial CFD software is developed to define optimal geometrical characteristics and operating conditions and refine the pilot scale design in order to achieve efficient, long-term off-sun operation.

S. Tescari; C. Agrafiotis; S. Breuer; L. de Oliveira; M. Neises-von Puttkamer; M. Roeb; C. Sattler

2014-01-01T23:59:59.000Z

176

Chapter 28 - Perceptual Audio Coding  

Science Journals Connector (OSTI)

Abstract Audio Coding has proliferated as a mainstream enabling digital technology for all types of applications that provide audio and multimedia to consumers using transmission or storage channels with limited capacity. Since its infancies in the eighties and early nineties, the technology behind low bitrate audio coding has developed rapidly until today. Nonetheless, the technology generations seen to date follow several common themes, including the use of time/frequency-domain processing, redundancy reduction (entropy coding), and irrelevancy removal through the pronounced exploitation of perceptual effects. The latter aspect is of paramount importance to the understanding and the performance of the coding systems and has gained more and more in importance over time. Starting from basic principles, this article provides an overview of methods for low bitrate perceptual audio coding and its evolution over time along with some related coding standards (e.g., “mp3”) and typical applications.

Jürgen Herre; Sascha Disch

2014-01-01T23:59:59.000Z

177

User's guide for the Data Analysis, Retrieval, and Tabulation System (DARTS), revised edition: A mainframe computer code for generating cross-tabulation reports  

SciTech Connect (OSTI)

A computer system unknown as the Data Analysis, Retrieval, and Tabulation System (DARTS) was developed by the Energy Systems Division at Argonne National Laboratory to generate tables of descriptive statistics derived from analyses of housing and energy data sources. Through a simple input command, the user can request the preparation of a hierarchical table based on any combination of several hundred of the most commonly analyzed variables. The system was written in the Statistical Analysis System (SAS) language and designed for use on a large-scale IBM mainframe computer.

Anderson, J.L.

1990-10-01T23:59:59.000Z

178

The Next Generation Nuclear Plant (NGNP) Project  

SciTech Connect (OSTI)

The Next Generation Nuclear Power (NGNP) Project will demonstrate emissions-free nuclearassisted electricity and hydrogen production by 2015. The NGNP reactor will be a helium-cooled, graphite moderated, thermal neutron spectrum reactor with a design goal outlet temperature of 1000 C or higher. The reactor thermal power and core configuration will be designed to assure passive decay heat removal without fuel damage during hypothetical accidents. The fuel cycle will be a once-through very high burnup low-enriched uranium fuel cycle. This paper provides a description of the project to build the NGNP at the Idaho National Engineering and Environmental Laboratory (INEEL). The NGNP Project includes an overall reactor design activity and four major supporting activities: materials selection and qualification, NRC licensing and regulatory support, fuel development and qualification, and the hydrogen production plant. Each of these activities is discussed in the paper. All the reactor design and construction activities will be managed under the DOE’s project management system as outlined in DOE Order 413.3. The key elements of the overall project management system discussed in this paper include the client and project management organization relationship, critical decisions (CDs), acquisition strategy, and the project logic and timeline. The major activities associated with the materials program include development of a plan for managing the selection and qualification of all component materials required for the NGNP; identification of specific materials alternatives for each system component; evaluation of the needed testing, code work, and analysis required to qualify each identified material; preliminary selection of component materials; irradiation of needed sample materials; physical, mechanical, and chemical testing of unirradiated and irradiated materials; and documentation of final materials selections. The NGNP will be licensed by the NRC under 10 CFR 50 or 10 CFR 52, for the purpose of demonstrating the suitability of high-temperature gas-cooled reactors for commercial electric power and hydrogen production. Products that will support the licensing of the NGNP include the environmental impact statement, the preliminary safety analysis report, the NRC construction permit, the final safety analysis report, and the NRC operating license. The fuel development and qualification program consists of five elements: development of improved fuel manufacturing technologies, fuel and materials irradiations, safety testing and post-irradiation examinations, fuel performance modeling, and fission product transport and source term modeling. Two basic approaches will be explored for using the heat from the high-temperature helium coolant to produce hydrogen. The first technology of interest is the thermochemical splitting of water into hydrogen and oxygen. The most promising processes for thermochemical splitting of water are sulfur-based and include the sulfur-iodine, hybrid sulfur-electrolysis, and sulfur-bromine processes. The second technology of interest is thermally assisted electrolysis of water. The efficiency of this process can be substantially improved by heating the water to high-temperature steam before applying electrolysis.

F. H. Southworth; P. E. MacDonald

2003-11-01T23:59:59.000Z

179

Dehydrogenation of N{sub 2}H{sub X} (X = 2 ? 4) by nitrogen atoms: Thermochemical and kinetics  

SciTech Connect (OSTI)

Thermochemical and kinetics of sequential hydrogen abstraction reactions from hydrazine by nitrogen atoms were studied. The dehydrogenation was divided in three steps, N{sub 2}H{sub 4} + N, N{sub 2}H{sub 3} + N, and N{sub 2}H{sub 2} + N. The thermal rate constants were calculated within the framework of canonical variational theory, with zero and small curvature multidimensional tunnelling corrections. The reaction paths were computed with the BB1K/aug-cc-pVTZ method and the thermochemical properties were improved with the CCSD(T)/CBS//BB1K/aug-cc-pVTZ approach. The first dehydrogenation step presents the lowest rate constants, equal to 1.22 × 10{sup ?20} cm{sup 3} molecule{sup ?1} s{sup ?1} at 298 K.

Spada, Rene Felipe Keidel; Araujo Ferrão, Luiz Fernando de [Departamento de Química, Instituto Tecnológico de Aeronáutica, São José dos Campos 12.228-900, São Paulo (Brazil); Departamento de Física, Instituto Tecnológico de Aeronáutica, São José dos Campos 12.228-900, São Paulo (Brazil); Roberto-Neto, Orlando [Divisão de Aerotermodinâmica e Hipersônica, Instituto de Estudos Avançados, São José dos Campos 12.229-840, São Paulo (Brazil)] [Divisão de Aerotermodinâmica e Hipersônica, Instituto de Estudos Avançados, São José dos Campos 12.229-840, São Paulo (Brazil); Machado, Francisco Bolivar Correto, E-mail: fmachado@ita.br [Departamento de Química, Instituto Tecnológico de Aeronáutica, São José dos Campos 12.228-900, São Paulo (Brazil)

2013-11-21T23:59:59.000Z

180

Conceptual design study FY 1981: synfuels from fusion - using the tandem mirror reactor and a thermochemical cycle to produce hydrogen  

SciTech Connect (OSTI)

This report represents the second year's effort of a scoping and conceptual design study being conducted for the express purpose of evaluating the engineering potential of producing hydrogen by thermochemical cycles using a tandem mirror fusion driver. The hydrogen thus produced may then be used as a feedstock to produce fuels such as methane, methanol, or gasoline. The main objective of this second year's study has been to obtain some approximate cost figures for hydrogen production through a conceptual design study.

Krikorian, O.H. (ed.)

1982-02-09T23:59:59.000Z

Note: This page contains sample records for the topic "generation thermochemical code" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
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to obtain the most current and comprehensive results.


181

Codes and Standards Activities  

Broader source: Energy.gov [DOE]

The Fuel Cell Technologies Office works with code development organizations, code officials, industry experts, and national laboratory scientists to draft new model codes and equipment standards...

182

Green Building Codes | Building Energy Codes Program  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Green Building Codes Green Building Codes Green building codes go beyond minimum code requirements, raising the bar for energy efficiency. They can serve as a proving ground for future standards, and incorporate elements beyond the scope of the model energy codes, such as water and resource efficiency. As regional and national green building codes and programs become more available, they provide jurisdictions with another tool for guiding construction and development in an overall less impactful, more sustainable manner. ICC ASHRAE Beyond Codes International Green Construction Code (IgCC) The International Code Council's (ICC's) International Green Construction code (IgCC) is an overlay code, meaning it is written in a manner to be used with all the other ICC codes. The IgCC contains provisions for site

183

Heterogeneous catalyst-assisted thermochemical conversion of food waste biomass into 5-hydroxymethylfurfural  

Science Journals Connector (OSTI)

Abstract A novel thermochemical conversion route has been developed that yields 5-hydroxymethylfurfural (HMF) from food waste biomass (FWB) in the presence of a heterogeneous catalysts (zirconium phosphate (ZrP)). The ZrP catalyst was prepared by precipitation followed by calcination at 400 (ZrP-400) and 600 °C (ZrP-600) and was characterized by SEM, XRD, XPS, N2 sorption and NH3-TPD. The optimized reaction conditions were identified to maximize HMF yield by varying the type of catalyst, the catalyst loading and the reaction time. The highest HMF yield achieved was 4.3%. On average 33% higher yield for ZrP-600 was obtained compared to that for ZrP-400, which might be due to higher number of acid sites on ZrP-600. The ZrP catalyst was easily regenerated by thermal treatment and showed stable activity upon its reuse. Preliminary calculations of the “minimum selling price” of HMF suggest that it is economically attractive to make this industrially-relevant chemical from FWB.

Ganesh K. Parshetti; Maria Stefanie Suryadharma; Thi Phuong Thuy Pham; Russell Mahmood; Rajasekhar Balasubramanian

2014-01-01T23:59:59.000Z

184

The effect of storage on the chemical composition and thermochemical conversion of biomass  

SciTech Connect (OSTI)

The effects of storage on different biomass feedstocks, including short rotation woody crops, herbaceous crops, and agricultural residues have been studied. Results of the analysis of fresh and stored material from four short rotation woody species using traditional wet chemical analysis showed differences in the chemical composition of the feedstocks harvested at different times. Changes that occurred in the material after unprotected storage outside for 26 weeks were measured. Over the period of the storage study, small changes were observed in the structural cell wall components including cellulose, hemicellulose and lignin. Larger changes were observed in the materials that could be extracted with 95% ethanol. Also presented are results from a rapid analytical technique using pyrolysis-mass spectrometry combined with multivariate statistical analysis to assess the influence of storage on the composition and thermochemical conversion of the different biomass feedstocks. Because of the rapid nature of this technique, a large number of samples could be screened to determine the extent of degradation throughout the piles. Application of this technique to the samples in this study indicated that, for the most part, significant changes did not occur in the composition of biomass taken from the centers of the piles. However, significant changes were detected in biomass taken from the outer layers and isolated regions in the piles where most advanced degradation had occurred.

Davis, M.F.; Agblevor, F.A.; Johnson, D.K. [National Renewable Energy Lab., Golden, CO (United States)] [and others

1994-12-31T23:59:59.000Z

185

Reaction of metal sulfates with molybdenum oxide, a high temperature reaction step for thermochemical cycles  

SciTech Connect (OSTI)

The reaction of sulfates with molybdenum oxide at high temperature was studied to determine the feasibility of using these reactions in a thermochemical process for making hydrogen. The experiments were performed by heating the blended powders to temperatures of 1075 K and higher and analyzing the evolved gas for acid content. It was found that the reaction rate over the first few minutes increased with both temperature and MoO/sub 3/. The fraction of sulfate reacting in the first 5 minutes varies with cation used. At 1125 K and for a molar ratio of sulfate ion/MoO/sub 3/ of 0.5, the fraction reacted was 0.29 for BaSO/sub 4/, 0.32 for CaSO/sub 4/ and 0.82 for La/sub 2/(SO/sub 4/)/sub 3/. These results are encouraging and indicate that an alternative means to sulfuric acid drying and decomposition is feasible using a mixed sulfate/oxide system to lower the effective decomposition temperature of the insoluble sulfate.

Hollabaugh, C.M.; Wallace, T.C.; Bowman, M.G.; Jones, W.M.

1980-01-01T23:59:59.000Z

186

Classification of Code Annotations and Discussion of Compiler-Support for Worst-Case Execution Time Analysis  

E-Print Network [OSTI]

of energy consumption, resource-aware code generation, or re- targetable code generators. Program execution providing explicit sup- port for WCET analysis would have on usage of these code annotations is discussed

187

Introduction Properties of Expander Codes  

E-Print Network [OSTI]

of Expander Codes Our Results Conclusions Background Basic Definitions LDPC Codes Expander Codes Turbo CodesIntroduction Properties of Expander Codes Our Results Conclusions Expander Codes: Constructions, Haifa 32000, Israel. Vitaly Skachek Expander Codes: Constructions and Bounds #12;Introduction Properties

Skachek, Vitaly

188

Low Temperature Combustion with Thermo-Chemical Recuperation to Maximize In-Use Engine Efficiency  

SciTech Connect (OSTI)

The key to overcome Low Temperature Combustion (LTC) load range limitations in reciprocating engines is based on proper control over the thermo-chemical properties of the in-cylinder charge. The studied alternative to achieve the required control of LTC is the use of two separate fuel streams to regulate timing and heat release at specific operational points, where the secondary fuel is a reformed product of the primary fuel in the tank. It is proposed in this report that the secondary fuel can be produced using exhaust heat and Thermo-Chemical Recuperation (TCR). TCR for reciprocating engines is a system that employs high efficiency recovery of sensible heat from engine exhaust gas and uses this energy to transform fuel composition. The recuperated sensible heat is returned to the engine as chemical energy. Chemical conversions are accomplished through catalytic and endothermic reactions in a specially designed reforming reactor. An equilibrium model developed by Gas Technology Institute (GTI) for heptane steam reforming was applied to estimate reformed fuel composition at different reforming temperatures. Laboratory results, at a steam/heptane mole ratio less than 2:1, confirm that low temperature reforming reactions, in the range of 550 K to 650 K, can produce 10-30% hydrogen (by volume, wet) in the product stream. Also, the effect of trading low mean effective pressure for displacement to achieve power output and energy efficiency has been explored by WVU. A zerodimensional model of LTC using heptane as fuel and a diesel Compression Ignition (CI) combustion model were employed to estimate pressure, temperature and total heat release as inputs for a mechanical and thermal loss model. The model results show that the total cooling burden on an LTC engine with lower power density and higher displacement was 14.3% lower than the diesel engine for the same amount of energy addition in the case of high load (43.57mg fuel/cycle). These preliminary modeling and experimental results suggest that the LTC-TCR combination may offer a high efficiency solution to engine operation. A single zone model using a detailed chemical kinetic mechanism was implemented in CHEMKIN and to study the effects of base fuel and steam-fuel reforming products on the ignition timing and heat release characteristics. The study was performed considering the reformed fuel species composition for total n-heptane conversion (ideal case) and also at the composition corresponding to a specific set of operational reforming temperatures (real case). The computational model confirmed that the reformed products have a strong influence on the low temperature heat release (LTHR) region, affecting the onset of the high temperature heat release (HTHR). The ignition timing was proportionally delayed with respect to the baseline fuel case when higher concentrations of reformed gas were used. For stoichiometric concentration of RG, it was found that by increasing the proportion of reformed fuel to total fuel (RG), from 0% to 30%, the amount of energy released during the LTHR regime, or HR{sub L}, was reduced by 48% and the ignition timing was delayed 10.4 CA degrees with respect to the baseline fuel case. For RG composition corresponding to certain operational reforming temperatures, it was found that the most significant effects on the HCCI combustion, regarding HR{sub L} reduction and CA50 delay, was obtained by RG produced at a reforming temperature range of 675 K-725 K.

Nigel N. Clark; Francisco Posada; Clinton Bedick; John Pratapas; Aleksandr Kozlov; Martin Linck; Dmitri Boulanov

2009-03-30T23:59:59.000Z

189

DOE Code:  

Broader source: Energy.gov (indexed) [DOE]

we1rbox installatiOn we1rbox installatiOn ____:....;...=.~;;....:..;=-+- DOE Code: - - !- Project Lead: Wes R1esland NEPA COMPLIANCE SURVEY J 3-24-10 1 Date: Project Information 1. Project Overview What are tne enwonmental mpacts? Contractor~~ _ _ _ _ ] 11 The purpose of this project is to prepare a pad for a 90 ton crane to get 1nto positiOn and ng up so we can 1 set our new weir box into position We will widen the existing road around 20 feet at the north end and taper our fill to about5 feet at the south end for a total of about 200 feeL and budd a near level pad for them tong up the crane on We will use the d1rt from the hill irnrnedJateiy north of the work to oe done 2. 3 4 What*s the legal location? What IS the durabon of the prOJed?

190

High pressure sulfuric acid decomposition experiments for the sulfur-iodine thermochemical cycle.  

SciTech Connect (OSTI)

A series of three pressurized sulfuric acid decomposition tests were performed to (1) obtain data on the fraction of sulfuric acid catalytically converted to sulfur dioxide, oxygen, and water as a function of temperature and pressure, (2) demonstrate real-time measurements of acid conversion for use as process control, (3) obtain multiple measurements of conversion as a function of temperature within a single experiment, and (4) assess rapid quenching to minimize corrosion of metallic components by undecomposed acid. All four of these objectives were successfully accomplished. This report documents the completion of the NHI milestone on high pressure H{sub 2}SO{sub 4} decomposition tests for the Sulfur-Iodine (SI) thermochemical cycle project. All heated sections of the apparatus, (i.e. the boiler, decomposer, and condenser) were fabricated from Hastelloy C276. A ceramic acid injection tube and a ceramic-sheathed thermocouple were used to minimize corrosion of hot liquid acid on the boiler surfaces. Negligible fracturing of the platinum on zirconia catalyst was observed in the high temperature decomposer. Temperature measurements at the exit of the decomposer and at the entry of the condenser indicated that the hot acid vapors were rapidly quenched from about 400 C to less than 20 C within a 14 cm length of the flow path. Real-time gas flow rate measurements of the decomposition products provided a direct measurement of acid conversion. Pressure in the apparatus was preset by a pressure-relief valve that worked well at controlling the system pressure. However, these valves sometimes underwent abrupt transitions that resulted in rapidly varying gas flow rates with concomitant variations in the acid conversion fraction.

Velasquez, Carlos E; Reay, Andrew R.; Andazola, James C.; Naranjo, Gerald E.; Gelbard, Fred

2005-09-01T23:59:59.000Z

191

A review on solar thermal syngas production via redox pair-based water/carbon dioxide splitting thermochemical cycles  

Science Journals Connector (OSTI)

Abstract The high power density, ease of transportation and storage and many years of development of internal combustion engine technologies have put liquid hydrocarbon fuels at a privileged position in our energy mix. Therefore processes that use renewable energy sources to produce liquid hydrocarbon fuels from H2O and CO2 are of crucial importance. Concentrated Solar Power (CSP) can be employed as the only energy source for the renewable production of hydrogen from water either indirectly, e.g. by supplying the electricity for electrolysis, or directly by supplying the necessary heat for thermochemically producing hydrogen. Among the various thermochemical cycles tested so far for CSP-driven hydrogen production via water splitting (WS), those based on redox-pair oxide systems, are directly adaptable to carbon dioxide splitting (CDS) and/or combined CO2/H2O splitting for the production of CO or syngas, respectively. The acknowledgement of this fact has recently revived the interest of the scientific community on such technologies. The current article presents the development, evolution and current status of CSP-aided syngas production via such redox-pair-based thermochemical cycles. At first the various redox oxide material compositions tested for water/carbon dioxide splitting are presented and their redox chemistries are discussed. Then the selection of suitable solar reactors is addressed in conjunction with the boundary conditions imposed by the redox systems as well as the heat demands, technical peculiarities and requirements of the cycle steps. The various solar reactor concepts proposed and employed for such reactions and their current status of development are presented. Finally, topics where further work is needed for commercialization of the technology are identified and discussed.

Christos Agrafiotis; Martin Roeb; Christian Sattler

2015-01-01T23:59:59.000Z

192

Thermodynamic Analysis of Syngas Production via the Solar Thermochemical Cerium Oxide Redox Cycle with Methane-Driven Reduction  

Science Journals Connector (OSTI)

Thermodynamic Analysis of Syngas Production via the Solar Thermochemical Cerium Oxide Redox Cycle with Methane-Driven Reduction ... Of particular interest is the storage of solar energy in chemical bonds via the splitting of water and carbon dioxide to produce hydrogen and carbon monoxide, referred to collectively as syngas. ... The coupled cycle produces high-quality syngas by the partial oxidation of methane in the ceria reduction step in addition to the carbon monoxide and hydrogen produced by splitting carbon dioxide and water in the oxidation step. ...

Peter T. Krenzke; Jane H. Davidson

2014-05-16T23:59:59.000Z

193

Usage Codes Observer code Vessel code Trip ID  

E-Print Network [OSTI]

Usage Codes 1 5 2 6 3 7 4 8 Observer code Vessel code Trip ID Permit holder name/address Permit / N MMSI No. Y / N Present? Usage Water capacity (m3): Fuel capacity: m3 / tonnes Other: Other: Kw all that apply & note types of materials for each) Capacity: Usage Incinerator: Net mensuration Y / N

194

Usage Codes Observer code Vessel code Trip ID  

E-Print Network [OSTI]

Usage Codes 1 5 2 6 3 7 4 8 Sonar Observer code Vessel code Trip ID Additional Information KHz: RPM / Other _______________Global Registry ID:MMSI No. Permit expiration (dd-mm- yy): Y / N Present? Usage contact Diver / dive equipment Usage Manufacturer Hull mounted / towed Catch Y / N Other: Y / N Y / NOther

195

Thermochemical water-splitting cycle, bench-scale investigations and process engineering. Annual report, October 1, 1978-September 30, 1979  

SciTech Connect (OSTI)

A program to investigate thermochemical water splitting has been under way at General Atomic Company (GA) since October 1972. This document is an annual progress report of Department of Energy (DOE) sponsored process development work on the GA sulfur-iodine thermochemical water splitting cycle. The work consisted of laboratory bench-scale investigations, demonstration of the process in a closed-loop cycle demonstrator, and process engineering design studies. A bench-scale system, consisting of three subunits, has been designed to study the cycle under continuous flow conditions. The designs of subunit I, which models the main solution reaction and product separation, and subunit II, which models the concentration and decomposition of sulfuric acid, were presented in an earlier annual report. The design of subunit III, which models the purification and decomposition of hydrogen iodide, is given in this report. Progress on the installation and operation of subunits I and II is described. A closed-loop cycle demonstrator was installed and operated based on a DOE request. Operation of the GA sulfur-iodine cycle was demonstrated in this system under recycle conditions. The process engineering addresses the flowsheet design of a large-scale production process consisting of four chemical sections (I through IV) and one helium heat supply section (V). The completed designs for sections I through V are presented. The thermal efficiency of the process calculated from the present flowsheet is 47%.

Caprioglio, G.; McCorkle, K.H.; Besenbruch, G.E.; Rode, J.S.

1980-03-01T23:59:59.000Z

196

Codes 101 | Building Energy Codes Program  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Codes 101 Codes 101 This course covers basic knowledge of energy codes and standards, the development processes of each, historical timelines, adoption, implementation, and enforcement of energy codes and standards, and voluntary energy efficiency programs. Most sections have links that provide additional details on that section's topic as well as additional resources for more information. Begin Learning! Estimated Length: 1-2 hours CEUs Offered: 1.0 AIA/CES LU (HSW); .10 CEUs towards ICC renewal certification. Course Type: Self-paced, online Building Type: Commercial Residential Focus: Adoption Code Development Compliance Code Version: ASHRAE Standard 90.1 International Energy Conservation Code (IECC) Model Energy Code (MEC) Target Audience: Advocate Architect/Designer Builder

197

Solar Syngas Production via H2O/CO2-Splitting Thermochemical Cycles with Zn/ZnO and FeO/Fe3O4 Redox Reactions  

Science Journals Connector (OSTI)

Solar Syngas Production via H2O/CO2-Splitting Thermochemical Cycles with Zn/ZnO and FeO/Fe3O4 Redox Reactions† ... The first step, driven by concentrated solar radiation, is the endothermic thermolysis of ZnO producing a gaseous mixture of O2 and ... ...

A. Stamatiou; P. G. Loutzenhiser; A. Steinfeld

2009-08-28T23:59:59.000Z

198

SunShot Initiative: Baseload Concentrating Solar Power Generation  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Concentrating Solar Power Generation Concentrating Solar Power Generation In 2010, DOE issued the Baseload Concentrating Solar Power (CSP) Generation funding opportunity announcement (FOA). The following projects were selected under this competitive solicitation: Abengoa: Advanced Nitrate Salt Central Receiver Power Plant eSolar: Modular and Scalable Baseload Molten Salt Plant Conceptual Design and Feasibility General Atomics: Baseload CSP Generation Integrated with Sulfur-Based Thermochemical Heat Storage HiTek: Low-Cost Heliostat Development Infinia: Innovative Phase Change Thermal Energy Storage Solution for Baseload Power PPG: Next-Generation Low-Cost Reflector Rocketdyne: Solar Power Tower Improvements with the Potential to Reduce Costs SENER: High-Efficiency Thermal Storage System for Solar Plants

199

Process Design and Economics for Conversion of Lignocellulosic Biomass to Ethanol: Thermochemical Pathway by Indirect Gasification and Mixed Alcohol Synthesis  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Conversion of Lignocellulosic Conversion of Lignocellulosic Biomass to Ethanol Thermochemical Pathway by Indirect Gasification and Mixed Alcohol Synthesis A. Dutta, M. Talmadge, and J. Hensley National Renewable Energy Laboratory Golden, Colorado M. Worley and D. Dudgeon Harris Group Inc. Atlanta, Georgia and Seattle, Washington D. Barton, P. Groenendijk, D. Ferrari, and B. Stears The Dow Chemical Company Midland, Michigan E.M. Searcy, C.T. Wright, and J.R. Hess Idaho National Laboratory Idaho Falls, Idaho Technical Report NREL/TP-5100-51400 May 2011 NREL is a national laboratory of the U.S. Department of Energy, Office of Energy Efficiency & Renewable Energy, operated by the Alliance for Sustainable Energy, LLC. National Renewable Energy Laboratory 1617 Cole Boulevard

200

CarnegieMellon HighHigh--Performance Code Generation forPerformance Code Generation for  

E-Print Network [OSTI]

RuleTreesRuleTreesFormulasFormulasAlgorithmsAlgorithms DFT8 DFT2 DFT4 Cooley-Tukey DFT2DFT2 Cooley-Tukey DFT8 DFT2 DFT4 Cooley-Tukey DFT2 DFT2 Cooley-Tukey Transform Rule 8 224 8 4248 L

Kepner, Jeremy

Note: This page contains sample records for the topic "generation thermochemical code" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


201

Model Building Energy Code  

Broader source: Energy.gov [DOE]

''Much of the information presented in this summary is drawn from the U.S. Department of Energy’s (DOE) Building Energy Codes Program and the Building Codes Assistance Project (BCAP). For more...

202

Building Energy Code  

Broader source: Energy.gov [DOE]

''Note: Much of the information presented in this summary is drawn from the U.S. Department of Energy’s (DOE) Building Energy Codes Program and the Building Codes Assistance Project (BCAP). For...

203

Building Energy Code  

Broader source: Energy.gov [DOE]

''Much of the information presented in this summary is drawn from the U.S. Department of Energy’s (DOE) Building Energy Codes Program and the Building Codes Assistance Project (BCAP). For more...

204

Coding AuthentiCity  

E-Print Network [OSTI]

This thesis analyzes the impact of form-based codes, focusing on two research questions: (1) What is the underlying motivation for adopting a form-based code? (2) What motivations have the most significant impact on ...

Mercier, Rachel Havens

2008-01-01T23:59:59.000Z

205

Introduction to Algebraic Codes  

E-Print Network [OSTI]

for health care. These self-correcting codes that occur in nature might be better than all of. our coding theory based on algebra or algebraic geometry. It is a myth

206

Survey and Down-Selection of Acid Gas Removal Systems for the Thermochemical Conversion of Biomass to Ethanol with a Detailed Analysis of an MDEA System  

SciTech Connect (OSTI)

The first section (Task 1) of this report by Nexant includes a survey and screening of various acid gas removal processes in order to evaluate their capability to meet the specific design requirements for thermochemical ethanol synthesis in NREL's thermochemical ethanol design report (Phillips et al. 2007, NREL/TP-510-41168). MDEA and selexol were short-listed as the most promising acid-gas removal agents based on work described in Task 1. The second report section (Task 2) describes a detailed design of an MDEA (methyl diethanol amine) based acid gas removal system for removing CO2 and H2S from biomass-derived syngas. Only MDEA was chosen for detailed study because of the available resources.

Nexant, Inc., San Francisco, California

2011-05-01T23:59:59.000Z

207

Sustainable Acquisition Coding System | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

Sustainable Acquisition Coding System Sustainable Acquisition Coding System Sustainable Acquisition Coding System Sustainable Acquisition Coding System More Documents &...

208

Code of Conduct  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Governance » Governance » Ethics, Accountability » Code of Conduct Code of Conduct Helping employees recognize and resolve the ethics and compliance issues that may arise in their daily work. Contact Code of Conduct (505) 667-7506 Code of Conduct LANL is committed to operating in accordance with the highest standards of ethics and compliance and with its core values of service to our nation, ethical conduct and personal accountability, excellence in our work, and mutual respect and teamwork. LANL must demonstrate to customers and the public that the Laboratory is accountable for its actions and that it conducts business in a trustworthy manner. What is LANL's Code of Conduct? Charlie McMillan 1:46 Laboratory Director Charlie McMillan introduces the code LANL's Code of Conduct is designed to help employees recognize and

209

Code Red 2 kills off Code Red 1  

E-Print Network [OSTI]

#12;#12;Code Red 2 kills off Code Red 1 Code Red 2 settles into weekly pattern Nimda enters the ecosystem Code Red 2 dies off as programmed CR 1 returns thanks to bad clocks #12;Code Red 2 dies off as programmed Nimda hums along, slowly cleaned up With its predator gone, Code Red 1 comes back, still

Paxson, Vern

210

RH-TRU Waste Content Codes  

SciTech Connect (OSTI)

The Remote-Handled Transuranic (RH-TRU) Content Codes (RH-TRUCON) document describes the inventory of RH-TRU waste within the transportation parameters specified by the Remote-Handled Transuranic Waste Authorized Methods for Payload Control (RH-TRAMPAC).1 The RH-TRAMPAC defines the allowable payload for the RH-TRU 72-B. This document is a catalog of RH-TRU 72-B authorized contents by site. A content code is defined by the following components: • A two-letter site abbreviation that designates the physical location of the generated/stored waste (e.g., ID for Idaho National Laboratory [INL]). The site-specific letter designations for each of the sites are provided in Table 1. • A three-digit code that designates the physical and chemical form of the waste (e.g., content code 317 denotes TRU Metal Waste). For RH-TRU waste to be transported in the RH-TRU 72-B, the first number of this three-digit code is “3.” The second and third numbers of the three-digit code describe the physical and chemical form of the waste. Table 2 provides a brief description of each generic code. Content codes are further defined as subcodes by an alpha trailer after the three-digit code to allow segregation of wastes that differ in one or more parameter(s). For example, the alpha trailers of the subcodes ID 322A and ID 322B may be used to differentiate between waste packaging configurations. As detailed in the RH-TRAMPAC, compliance with flammable gas limits may be demonstrated through the evaluation of compliance with either a decay heat limit or flammable gas generation rate (FGGR) limit per container specified in approved content codes. As applicable, if a container meets the watt*year criteria specified by the RH-TRAMPAC, the decay heat limits based on the dose-dependent G value may be used as specified in an approved content code. If a site implements the administrative controls outlined in the RH-TRAMPAC and Appendix 2.4 of the RH-TRU Payload Appendices, the decay heat or FGGR limits based on a 10-day shipping period (rather than the standard 60-day shipping period) may be used as specified in an approved content code. Requests for new or revised content codes may be submitted to the WIPP RH-TRU Payload Engineer for review and approval, provided all RH-TRAMPAC requirements are met.

Washington TRU Solutions

2007-07-01T23:59:59.000Z

211

Code loops in both parities  

Science Journals Connector (OSTI)

We present equivalent definitions of code loops in any characteristic p?0. The most natural definition is via combinatorial polarization, but we also show how to realize code loops by linear codes and as a class of symplectic conjugacy ... Keywords: Characteristic form, Code loop, Combinatorial polarization, Conjugacy closed loop, Doubly even code, Even code loop, Kronecker product, Moufang loop, Odd code loop, Self-orthogonal code, Small Frattini loop, Symmetric associator, Symplectic loop

Aleš Drápal; Petr Vojt?chovský

2010-06-01T23:59:59.000Z

212

Life cycle assessment of hydrogen production from S-I thermochemical process coupled to a high temperature gas reactor  

SciTech Connect (OSTI)

The purpose of this paper is to quantify the greenhouse gas (GHG) emissions associated to the hydrogen produced by the sulfur-iodine thermochemical process, coupled to a high temperature nuclear reactor, and to compare the results with other life cycle analysis (LCA) studies on hydrogen production technologies, both conventional and emerging. The LCA tool was used to quantify the impacts associated with climate change. The product system was defined by the following steps: (i) extraction and manufacturing of raw materials (upstream flows), (U) external energy supplied to the system, (iii) nuclear power plant, and (iv) hydrogen production plant. Particular attention was focused to those processes where there was limited information from literature about inventory data, as the TRISO fuel manufacture, and the production of iodine. The results show that the electric power, supplied to the hydrogen plant, is a sensitive parameter for GHG emissions. When the nuclear power plant supplied the electrical power, low GHG emissions were obtained. These results improve those reported by conventional hydrogen production methods, such as steam reforming. (authors)

Giraldi, M. R.; Francois, J. L.; Castro-Uriegas, D. [Departamento de Sistemas Energeticos, Facultad de Ingenieria, Universidad Nacional Autonoma de Mexico, Paseo Cuauhnahuac No. 8532, Col. Progreso, C.P. 62550, Jiutepec, Morelos (Mexico)

2012-07-01T23:59:59.000Z

213

Design and Economic Analysis of a Thermochemical Lignocellulosic Biomass-to-Butanol Process  

Science Journals Connector (OSTI)

Second-generation biofuels show great promise for addressing some of the major challenges of achieving a sustainable society, such as global climate change, energy security, and land use (food vs fuel). ... land (pure real estate) ... In reality, renewable fuels have a number of uncertainties, especially regarding government policies, and other potential benefits such as carbon emission reductions, fossil-fuel energy savings, energy security, and economic development that can be difficult to quantify. ...

Chinedu Okoli; Thomas A. Adams; II

2014-06-17T23:59:59.000Z

214

FlexibleSUSY -- A spectrum generator generator for supersymmetric models  

E-Print Network [OSTI]

We introduce FlexibleSUSY, a Mathematica and C++ package, which generates a fast, precise C++ spectrum generator for any SUSY model specified by the user. The generated code is designed with both speed and modularity in mind, making it easy to adapt and extend with new features. The model is specified by supplying the superpotential, gauge structure and particle content in a SARAH model file; specific boundary conditions e.g. at the GUT, weak or intermediate scales are defined in a separate FlexibleSUSY model file. From these model files, FlexibleSUSY generates C++ code for self-energies, tadpole corrections, renormalization group equations (RGEs) and electroweak symmetry breaking (EWSB) conditions and combines them with numerical routines for solving the RGEs and EWSB conditions simultaneously. The resulting spectrum generator is then able to solve for the spectrum of the model, including loop-corrected pole masses, consistent with user specified boundary conditions. The modular structure of the generated co...

Athron, Peter; Stöckinger, Dominik; Voigt, Alexander

2014-01-01T23:59:59.000Z

215

Mechanical code comparator  

DOE Patents [OSTI]

A new class of mechanical code comparators is described which have broad potential for application in safety, surety, and security applications. These devices can be implemented as micro-scale electromechanical systems that isolate a secure or otherwise controlled device until an access code is entered. This access code is converted into a series of mechanical inputs to the mechanical code comparator, which compares the access code to a pre-input combination, entered previously into the mechanical code comparator by an operator at the system security control point. These devices provide extremely high levels of robust security. Being totally mechanical in operation, an access control system properly based on such devices cannot be circumvented by software attack alone.

Peter, Frank J. (Albuquerque, NM); Dalton, Larry J. (Bernalillo, NM); Plummer, David W. (Albuquerque, NM)

2002-01-01T23:59:59.000Z

216

Thermohydraulic analysis of U-tube steam generators  

E-Print Network [OSTI]

Recent trends in plant safety analysis reveal a need for benchmark analytical representations of the steam generators to aid in the improvement of system codes and of fast codes for operator assistance. A model for such ...

da Silva, Hugo Cardoso

1984-01-01T23:59:59.000Z

217

Diophantine Generation,  

E-Print Network [OSTI]

Diophantine Generation, Horizontal and Vertical Problems, and the Weak Vertical Method Alexandra Shlapentokh Diophantine Sets, Definitions and Generation Diophantine Sets Diophantine Generation Properties of Diophantine Generation Diophantine Family of Z Diophantine Family of a Polynomial Ring Going Down Horizontal

Shlapentokh, Alexandra

218

Building Codes Resources  

Broader source: Energy.gov [DOE]

Some commercial and/or residential construction codes mandate certain energy performance requirements for the design, materials, and equipment used in new construction and renovations.

219

" Row: NAICS Codes;" " Column...  

U.S. Energy Information Administration (EIA) Indexed Site

2 Number of Establishments by Usage of General Energy-Saving Technologies, 2010;" " Level: National Data; " " Row: NAICS Codes;" " Column: Usage within General Energy-Saving...

220

" Row: NAICS Codes;"  

U.S. Energy Information Administration (EIA) Indexed Site

3 Number of Establishments by Usage of Cogeneration Technologies, 2010;" " Level: National Data; " " Row: NAICS Codes;" " Column: Usage within Cogeneration Technologies;" " Unit:...

Note: This page contains sample records for the topic "generation thermochemical code" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


221

" Row: NAICS Codes;"  

U.S. Energy Information Administration (EIA) Indexed Site

3 Number of Establishments by Usage of Cogeneration Technologies, 2002; " " Level: National Data; " " Row: NAICS Codes;" " Column: Usage within Cogeneration Technologies;" " Unit:...

222

" Row: NAICS Codes;"  

U.S. Energy Information Administration (EIA) Indexed Site

Establishment","Onsite","per Establishment" "Code(a)","Subsector and Industry","(million sq ft)","(counts)","(sq ft)","(counts)","(counts)" ,,"Total United...

223

Codes and Standards  

Broader source: Energy.gov [DOE]

Currently, thirteen U.S. and two international standards development organizations (SDOs) are developing and publishing the majority of the voluntary domestic codes and standards. These...

224

" Row: NAICS Codes;" " ...  

U.S. Energy Information Administration (EIA) Indexed Site

1.3. Number of Establishments by Quantity of Purchased Electricity, Natural Gas, and Steam, 1998;" " Level: National Data; " " Row: NAICS Codes;" " Column: Supplier Sources of...

225

Hydrogen Production from the Next Generation Nuclear Plant  

SciTech Connect (OSTI)

The Next Generation Nuclear Plant (NGNP) is a high temperature gas-cooled reactor that will be capable of producing hydrogen, electricity and/or high temperature process heat for industrial use. The project has initiated the conceptual design phase and when completed will demonstrate the viability of hydrogen generation using nuclear produced process heat. This paper explains how industry and the U.S. Government are cooperating to advance nuclear hydrogen technology. It also describes the issues being explored and the results of recent R&D including materials development and testing, thermal-fluids research, and systems analysis. The paper also describes the hydrogen production technologies being considered (including various thermochemical processes and high-temperature electrolysis).

M. Patterson; C. Park

2008-03-01T23:59:59.000Z

226

" Row: NAICS Codes; Column: Electricity Components;"  

U.S. Energy Information Administration (EIA) Indexed Site

1. Electricity: Components of Net Demand, 1998;" 1. Electricity: Components of Net Demand, 1998;" " Level: National and Regional Data; " " Row: NAICS Codes; Column: Electricity Components;" " Unit: Million Kilowatthours." " "," ",,,,,," " " "," ",,,,"Sales and","Net Demand","RSE" "NAICS"," ",,,"Total Onsite","Transfers","for","Row" "Code(a)","Subsector and Industry","Purchases","Transfers In(b)","Generation(c)","Offsite","Electricity(d)","Factors" ,,"Total United States"

227

" Row: NAICS Codes; Column: Electricity Components;"  

U.S. Energy Information Administration (EIA) Indexed Site

1 Electricity: Components of Net Demand, 2002;" 1 Electricity: Components of Net Demand, 2002;" " Level: National and Regional Data; " " Row: NAICS Codes; Column: Electricity Components;" " Unit: Million Kilowatthours." " "," ",,,,,," " " "," ",,,"Total ","Sales and","Net Demand","RSE" "NAICS"," ",,"Transfers ","Onsite","Transfers","for","Row" "Code(a)","Subsector and Industry","Purchases"," In(b)","Generation(c)","Offsite","Electricity(d)","Factors" ,,"Total United States"

228

Generation of certifiably correct programs from formal models Alexei Iliasov  

E-Print Network [OSTI]

Generation of certifiably correct programs from formal models Alexei Iliasov Newcastle University techniques helps to deliver systems that are free from engineer- ing defects. A code generator quickly, consistently and reproducibly. Com- monly, a code generator is a program constructed informally

Southampton, University of

229

11. CONTRACT ID CODE  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

1 PAGE 1 OF2 AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT PAGES 2. AMENDMENT/MODIFICATION NO. I 3. EFFECTIVE DATE M191 See Block 16C 4. REQUISITION/PURCHASE I 5. PROJECT NO. (If applicable) REQ. NO. 6.ISSUED BY CODE U.S. Department of Energy National Nuclear Security Administration Service Center Property and M&O Contract Support Department P.O. Box 5400 Albuquerque, NM 87185-5400 7. ADMINISTERED BY (If other than Item 6) CODE U.S. Department of Energy National Nuclear Security Administration Manager, Pantex Site Office P.O. Box 30030 Amarillo, TX 79120 8. NAME AND ADDRESS OF CONTRACTOR (No., street, county, state, ZIP Code) Babcock & Wilcox Technical Services Pantex, LLC PO Box 30020 Amarillo, TX 79120 CODE I FACILITY CODE SA. AMENDMENT OF SOLICITATION NO.

230

PETSc: Docs: Code Management  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Code Management Code Management Home Download Features Documentation Manual pages and Users Manual Citing PETSc Tutorials Installation SAWs Changes Bug Reporting Code Management FAQ License Linear Solver Table Applications/Publications Miscellaneous External Software Developers Site In this file we list some of the techniques that may be used to increase one's efficiency when developing PETSc application codes. We have learned to use these techniques ourselves, and they have improved our efficiency tremendously. Editing and Compiling The biggest time sink in code development is generally the cycle of EDIT-COMPILE-LINK-RUN. We often see users working in a single window with a cycle such as: Edit a file with emacs. Exit emacs. Run make and see some error messages. Start emacs and try to fix the errors; often starting emacs hides

231

Hydrogen Codes and Standards  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Codes and Standards Codes and Standards James Ohi National Renewable Energy Laboratory 1617 Cole Blvd. Golden, CO 80401 Background The development and promulgation of codes and standards are essential if hydrogen is to become a significant energy carrier and fuel because codes and standards are critical to establishing a market-receptive environment for commercializing hydrogen-based products and systems. The Hydrogen, Fuel Cells, and Infrastructure Technologies Program of the U.S. Department of Energy (DOE) and the National Renewable Energy Laboratory (NREL), with the help of the National Hydrogen Association (NHA) and other key stakeholders, are coordinating a collaborative national effort by government and industry to prepare, review, and promulgate hydrogen codes and standards needed to expedite hydrogen infrastructure development. The

232

Residential Building Code Compliance  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

6 6 Residential Building Code Compliance: Recent Findings and Implications Energy use in residential buildings in the U.S. is significant-about 20% of primary energy use. While several approaches reduce energy use such as appliance standards and utility programs, enforcing state building energy codes is one of the most promising. However, one of the challenges is to understand the rate of compliance within the building community. Utility companies typically use these codes as the baseline for providing incentives to builders participating in utility-sponsored residential new construction (RNC) programs. However, because builders may construct homes that fail to meet energy codes, energy use in the actual baseline is higher than would be expected if all buildings complied with the code. Also,

233

Layered Wyner-Ziv video coding for noisy channels  

E-Print Network [OSTI]

The growing popularity of video sensor networks and video celluar phones has generated the need for low-complexity and power-e?cient multimedia systems that can handle multiple video input and output streams. While standard video coding...

Xu, Qian

2005-11-01T23:59:59.000Z

234

Sandia National Laboratories: SNL-SWAN Beta Code Development...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Next-Generation Machines SNL-SWAN Beta Code Development: Frequency-Dependent Wave-Energy Converter (WEC) Module On June 18, 2014, in Energy, Renewable Energy, Water Power...

235

ENERGY EFFICIENCY LIMITS FOR A RECUPERATIVE BAYONET SULFURIC ACID DECOMPOSITION REACTOR FOR SULFUR CYCLE THERMOCHEMICAL HYDROGEN PRODUCTION  

SciTech Connect (OSTI)

A recuperative bayonet reactor design for the high-temperature sulfuric acid decomposition step in sulfur-based thermochemical hydrogen cycles was evaluated using pinch analysis in conjunction with statistical methods. The objective was to establish the minimum energy requirement. Taking hydrogen production via alkaline electrolysis with nuclear power as the benchmark, the acid decomposition step can consume no more than 450 kJ/mol SO{sub 2} for sulfur cycles to be competitive. The lowest value of the minimum heating target, 320.9 kJ/mol SO{sub 2}, was found at the highest pressure (90 bar) and peak process temperature (900 C) considered, and at a feed concentration of 42.5 mol% H{sub 2}SO{sub 4}. This should be low enough for a practical water-splitting process, even including the additional energy required to concentrate the acid feed. Lower temperatures consistently gave higher minimum heating targets. The lowest peak process temperature that could meet the 450-kJ/mol SO{sub 2} benchmark was 750 C. If the decomposition reactor were to be heated indirectly by an advanced gas-cooled reactor heat source (50 C temperature difference between primary and secondary coolants, 25 C minimum temperature difference between the secondary coolant and the process), then sulfur cycles using this concept could be competitive with alkaline electrolysis provided the primary heat source temperature is at least 825 C. The bayonet design will not be practical if the (primary heat source) reactor outlet temperature is below 825 C.

Gorensek, M.; Edwards, T.

2009-06-11T23:59:59.000Z

236

Structural and Spectroscopic Characterization of 17- and 18-Electron Piano-Stool Complexes of Chromium. Thermochemical Analyses of Weak Cr-H Bonds  

SciTech Connect (OSTI)

The 17-electron radical CpCr(CO)2(IMe)• (IMe = 1,3-dimethylimidazol-2-ylidene) was synthesized by the reaction of IMe with [CpCr(CO)3]2, and characterized by single crystal X-ray diffraction and by EPR, IR and variable temperature 1H NMR spectroscopy. The metal-centered radical is monomeric under all conditions and exhibits Curie paramagnetic behavior in solution. An electrochemically reversible reduction to 18-electron CpCr(CO)2(IMe)? takes place at E½ = ?1.89(1) V vs Cp2Fe+•/0 in MeCN, and was accomplished chemically with KC8 in THF. The salts K+(18-crown-6)[CpCr(CO)2(IMe)]? • ½THF and K+[CpCr(CO)2(IMe)]? • ¾THF were crystallographically characterized. Monomeric ion pairs are found in the former, whereas the latter has a polymeric structure due to a network of K???O(CO) interactions. Protonation of K+(18-crown-6)[CpCr(CO)2(IMe)]? • ½THF gives the hydride CpCr(CO)2(IMe)H, which could not be isolated, but was characterized in solution; a pKa of 27.2(4) was determined in MeCN. A thermochemical analysis provides the Cr-H bond dissociation free energy (BDFE) for CpCr(CO)2(IMe)H in MeCN solution as 47.3(6) kcal mol?1. This value is exceptionally low for a transition metal hydride, and implies that the reaction 2 [Cr-H] ? 2 [Cr•] + H2 is exergonic (?G = ?9.0(8) kcal mol?1). This analysis explains the experimental observation that generated solutions of the hydride produce CpCr(CO)2(IMe)• (typically on the timescale of days). By contrast, CpCr(CO)2(PCy3)H has a higher Cr-H BDFE (52.9(4) kcal mol?1), is more stable with respect to H2 loss, and is isolable. We thank the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences, Division of Chemical Sciences, Geosciences and Biosciences for support. M.L.H. carried out the crystallographic studies and was supported as part of the Center for Molecular Electrocatalysis, an Energy Frontier Research Center funded by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences. The EPR studies were performed at the William R. Wiley Environmental Molecular Sciences Laboratory (EMSL), a national scientific user facility sponsored by the Department of Energy’s Office of Biological and Environmental Research located at PNNL. Pacific Northwest National Laboratory is a multiprogram national laboratory operated by Battelle for the U.S. Department of Energy.

van der Eide, Edwin F.; Helm, Monte L.; Walter, Eric D.; Bullock, R. Morris

2013-02-04T23:59:59.000Z

237

E-Print Network 3.0 - alpha coding sequence Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

will generate conservative Alpha code sequences for unaligned memory access. If the profile does not indicate... Pentium or a 200-MHz Pentium Pro when executing translated...

238

Comparison of isotopic transmutation modelling codes  

E-Print Network [OSTI]

. STAMATELATOS, "Fission Product Data for Thermal Reactors Part 2: Users Manual for EPRI-CINDER Code and Data, " LA-6746-MS, Los Alamos National Laboratory (Dec. 1976). 5. H. BATEMAN, ~RGE~di gH gf ~t gym~id 6. M. J. BEIL, "ORIGEN ? The ORNL Isotope... Generation and Depletion Code, " ORNL-4628, Oak Ridge National Laboratory (May, 1973). 7. O. W. HERMANN and R. M. WESTFALL, "ORIGEN-S Scale System Module to Calculate Fuel Depletion, Actinide Transmutation, Fission Product. Buildup and Decay...

Beard, Carl Allen

1990-01-01T23:59:59.000Z

239

Compiling Codes on Hopper  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Compiling Codes Compiling Codes Compiling Codes on Hopper Overview Cray provides a convenient set of wrapper commands that should be used in almost all cases for compiling and linking parallel programs. Invoking the wrappers will automatically link codes with MPI libraries and other Cray system software. All MPI and Cray system include directories are also transparently imported. In addition the wrappers append the compiler's target processor arguments for the hopper compute node processors. NOTE: The intention is that programs are compiled on the login nodes and executed on the compute nodes. Because the compute nodes and login nodes have different operating systems, binaries created for compute nodes may not run on the login node. The wrappers mentioned above guarantee that

240

Code of Ethics  

Science Journals Connector (OSTI)

code of ethics clarifies the ethical principles that are followed in a specific field. In this context we refer to the , formally adopted by the American Public Health Association in 2002. It is the first b...

2008-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "generation thermochemical code" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


241

ANNOUNCEMENT: ZIP Code Information.  

Science Journals Connector (OSTI)

THE U. S. Post Office Department has announced that the use of ZIP Codes will be mandatory on all domestic addresses for subscriptions and other mailings by 1 January 1967. Accordingly, the American Institute of Physics has established a procedure for obtaining the necessary information. You are requested to follow this procedure exactly.First, do not submit a change of address request consisting merely of the addition of your ZIP Code. Second, if your address changes in any other way, do include the ZIP Code of the new address. Third, and most important, be sure to furnish your ZIP Code in accordance with instructions included with all renewal invoices and renewal orders which have been sent out by the AIP.Failure to conform to this procedure may result in delays.

1965-09-27T23:59:59.000Z

242

2010 IEEE Information Theory Workshop -ITW 2010 Dublin Dense Error-Correcting Codes in the Lee Metric  

E-Print Network [OSTI]

for . The lattice with the generator matrix G is denoted by (G). Remark 1: There are other ways to describe a linear or the Manhattan distance. Linear codes are usually the codes which can be handled more effectively and hence we will assume throughout this paper that all codes are linear. A linear code in Zn is an integer lattice

Yaakobi, Eitan

243

Quantum error control codes  

E-Print Network [OSTI]

QUANTUM ERROR CONTROL CODES A Dissertation by SALAH ABDELHAMID AWAD ALY AHMED Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements for the degree of DOCTOR OF PHILOSOPHY May 2008 Major... Subject: Computer Science QUANTUM ERROR CONTROL CODES A Dissertation by SALAH ABDELHAMID AWAD ALY AHMED Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements for the degree of DOCTOR OF PHILOSOPHY...

Abdelhamid Awad Aly Ahmed, Sala

2008-10-10T23:59:59.000Z

244

Joint design of multi-resolution codes and intra / inter- layer network coding  

E-Print Network [OSTI]

In this thesis, we study the joint design of multi-resolution (MR) coding and network coding. The three step coding process consists of MR source coding, layer coding and multi-stream coding. The source coding considers ...

Wang, Tong, S.M. Massachusetts Institute of Technology

2012-01-01T23:59:59.000Z

245

1. Generation 1 1. Generation  

E-Print Network [OSTI]

1. Generation 1 _________________________________________________________________________ 1. Generation Sound and vibrations or, in more general terms, oscillations of matter (solids or fluids) are generated in many different dynamic processes. The basic mechanisms which underlie these oscillations

Berlin,Technische Universität

246

Maine | Building Energy Codes Program  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Maine Maine Last updated on 2013-11-04 Commercial Residential Code Change Current Code ASHRAE Standard 90.1-2007 Amendments / Additional State Code Information As of September 28, 2011, municipalities over 4,000 in population were required to enforce the new code if they had a building code in place by August 2008. Municipalities under 4,000 are not required to enforce it unless they wish to do so and have the following options: 1. Adopt and enforce the Maine Uniform Building and Energy Code 2. Adopt and enforce the Maine Uniform Building Code (the building code without energy) 3. Adopt and enforce the Maine Uniform Energy Code (energy code only) 4. Have no code Approved Compliance Tools Can use COMcheck State Specific Research Impacts of ASHRAE 90.1-2007 for Commercial Buildings in the State of Maine (BECP Report, Sept. 2009)

247

Nested Quantum Error Correction Codes  

E-Print Network [OSTI]

The theory of quantum error correction was established more than a decade ago as the primary tool for fighting decoherence in quantum information processing. Although great progress has already been made in this field, limited methods are available in constructing new quantum error correction codes from old codes. Here we exhibit a simple and general method to construct new quantum error correction codes by nesting certain quantum codes together. The problem of finding long quantum error correction codes is reduced to that of searching several short length quantum codes with certain properties. Our method works for all length and all distance codes, and is quite efficient to construct optimal or near optimal codes. Two main known methods in constructing new codes from old codes in quantum error-correction theory, the concatenating and pasting, can be understood in the framework of nested quantum error correction codes.

Zhuo Wang; Kai Sun; Hen Fan; Vlatko Vedral

2009-09-28T23:59:59.000Z

248

A residential micro tri-generation system based on a gas fired stirling engine CHP and thermo-chemical accumulator (TCA).  

E-Print Network [OSTI]

??Cooling production has application in a considerable number of fields in human life, such as: food processing, air-conditioning, pharmaceuticals, etc. The conventional refrigeration system driven… (more)

Hasib`, Zannatul, M (Author)

2013-01-01T23:59:59.000Z

249

Distributed Generation  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Untapped Value of Backup Generation Untapped Value of Backup Generation While new guidelines and regulations such as IEEE (Institute of Electrical and Electronics Engineers) 1547 have come a long way in addressing interconnection standards for distributed generation, utilities have largely overlooked the untapped potential of these resources. Under certain conditions, these units (primarily backup generators) represent a significant source of power that can deliver utility services at lower costs than traditional centralized solutions. These backup generators exist today in large numbers and provide utilities with another option to reduce peak load, relieve transmission congestion, and improve power reliability. Backup generation is widely deployed across the United States. Carnegie Mellon's Electricity

250

Quantum codes over Finite Frobenius Rings  

E-Print Network [OSTI]

polynomial rX i=1 aiX r i where ai 2 Z=(p n). Let = exp(2 i=pn) then, (a) = a is a generating character. 2. Inner product Symplectic inner product Let (ajb) and (a 0 jb 0 ) denote two codewords in the code C. Then the symplectic inner product... of the two vectors is de ned as (b:a 0 b 0 :a). If C is the code then its dual C? is de ned as C? = f(ajb)j (b:a0 b0:a) = 1forall(a0jb0) 2 Cg Lemma 1 Let be a character of a nite frobenius ring R. Then is a right generating character if and only...

Sarma, Anurupa

2012-10-19T23:59:59.000Z

251

Alabama | Building Energy Codes Program  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Adoption » Status of State Energy Code Adoption Adoption » Status of State Energy Code Adoption Site Map Printable Version Development Adoption Adoption Process State Technical Assistance Status of State Energy Code Adoption Compliance Regulations Resource Center Alabama Last updated on 2013-05-31 Current News The Alabama Energy and Residential Codes Board adopted the 2009 International Energy Conservation Code (IECC) for Commercial Buildings and the 2009 International Residential Code (IRC) for Residential Construction. The new codes will become effective on October 1, 2012. Commercial Residential Code Change Current Code 2009 IECC Amendments / Additional State Code Information N/A Approved Compliance Tools State Specific Research Impacts of ASHRAE 90.1-2007 for Commercial Buildings in Alabama (BECP Report, Sept. 2009)

252

Washington | Building Energy Codes Program  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Washington Washington Last updated on 2013-11-05 Current News The Washington State Building Code Council recently completed deliberations on adoption and amendment of the 2012 codes. This includes adoption of the 2012 IECC with state amendments. The new codes became effective July 1, 2013. Commercial Residential Code Change Current Code State Specific Amendments / Additional State Code Information WA 2012 Nonresidential Codes Approved Compliance Tools Nonresidential Energy Code Compliance Tools Approximate Energy Efficiency Equivalent to ASHRAE 90.1-2010 Effective Date 07/01/2013 Adoption Date 02/01/2013 Code Enforcement Mandatory DOE Determination ASHRAE 90.1-2007: Yes ASHRAE 90.1-2010: Yes Washington DOE Determination Letter, May 31, 2013 Washington State Certification of Commercial and Residential Building Energy Codes

253

Performing aggressive code optimization with an ability to rollback changes made by the aggressive optimizations  

DOE Patents [OSTI]

Mechanisms for aggressively optimizing computer code are provided. With these mechanisms, a compiler determines an optimization to apply to a portion of source code and determines if the optimization as applied to the portion of source code will result in unsafe optimized code that introduces a new source of exceptions being generated by the optimized code. In response to a determination that the optimization is an unsafe optimization, the compiler generates an aggressively compiled code version, in which the unsafe optimization is applied, and a conservatively compiled code version in which the unsafe optimization is not applied. The compiler stores both versions and provides them for execution. Mechanisms are provided for switching between these versions during execution in the event of a failure of the aggressively compiled code version. Moreover, predictive mechanisms are provided for predicting whether such a failure is likely.

Gschwind, Michael K

2013-07-23T23:59:59.000Z

254

NAICS Codes Description:  

Broader source: Energy.gov (indexed) [DOE]

Codes Codes Description: Filters: Date Signed only show values between '10/01/2006' and '09/30/2007', Contracting Agency ID show only ('8900'), Contracting Office ID show only ('00001') Contracting Agency ID: 8900, Contracting Office ID: 00001 NAICS Code NAICS Description Actions Action Obligation 541519 OTHER COMPUTER RELATED SERVICES 251 $164,546,671 541611 ADMINISTRATIVE MANAGEMENT AND GENERAL MANAGEMENT CONSULTING SERVICES 236 $52,396,806 514210 DATA PROCESSING SERVICES 195 $28,941,727 531210 OFFICES OF REAL ESTATE AGENTS AND BROKERS 190 $6,460,652 541330 ENGINEERING SERVICES 165 $33,006,079 163 $11,515,387 541690 OTHER SCIENTIFIC AND TECHNICAL CONSULTING SERVICES 92 $40,527,088 531390 OTHER ACTIVITIES RELATED TO REAL ESTATE 79 -$659,654 337214 OFFICE FURNITURE (EXCEPT WOOD) MANUFACTURING 78 $1,651,732

255

Table 11.3 Electricity: Components of Onsite Generation, 2002  

U.S. Energy Information Administration (EIA) Indexed Site

3 Electricity: Components of Onsite Generation, 2002;" 3 Electricity: Components of Onsite Generation, 2002;" " Level: National and Regional Data; " " Row: NAICS Codes; Column: Onsite-Generation Components;" " Unit: Million Kilowatthours." " "," ",,,"Renewable Energy",," " " "," ",,,"(excluding Wood",,"RSE" "NAICS"," ","Total Onsite",,"and",,"Row" "Code(a)","Subsector and Industry","Generation","Cogeneration(b)","Other Biomass)(c)","Other(d)","Factors" ,,"Total United States" ,"RSE Column Factors:",0.9,0.8,1.1,1.3

256

Building Energy Codes Fact Sheet  

Broader source: Energy.gov [DOE]

Building energy codes have been in place for over 20 years. Today's codes are providing energy savings of more than 30% compared to the codes of a decade ago. They're also saving consumers an estimated $5 billion annually as of 2012. Since 1992, building codes have saved about 300 million tons of carbon cumulatively. Read the fact sheet below to learn more about the Building Technologies Office's Building Energy Codes program.

257

Coding for Cooperative Communications  

E-Print Network [OSTI]

develop and design practical coding strategies which perform very close to the infor- mation theoretic limits. The cooperative communication channels we consider are: (a) The Gaussian re- lay channel, (b) the quasi-static fading relay channel, (c... modulation. The CF strategy is implemented with low-density parity-check (LDPC) and irregular repeat- accumulate codes and is found to operate within 0.34 dB of the theoretical limit. For the quasi-static fading relay channel, we assume that no channel...

Uppal, Momin Ayub

2011-10-21T23:59:59.000Z

258

SWAAM-LT: The long-term, sodium/water reaction analysis method computer code  

SciTech Connect (OSTI)

The SWAAM-LT Code, developed for analysis of long-term effects of sodium/water reactions, is discussed. The theoretical formulation of the code is described, including the introduction of system matrices for ease of computer programming as a general system code. Also, some typical results of the code predictions for available large scale tests are presented. Test data for the steam generator design with the cover-gas feature and without the cover-gas feature are available and analyzed. The capabilities and limitations of the code are then discussed in light of the comparison between the code prediction and the test data.

Shin, Y.W.; Chung, H.H.; Wiedermann, A.H. [Argonne National Lab., IL (United States); Tanabe, H. [Power Reactor and Nuclear Fuel Development Corp., Tokai, Ibaraki (Japan)

1993-01-01T23:59:59.000Z

259

Thermochemical nitrate destruction  

DOE Patents [OSTI]

A method is disclosed for denitrification of nitrates and nitrites present in aqueous waste streams. The method comprises the steps of (1) identifying the concentration nitrates and nitrites present in a waste stream, (2) causing formate to be present in the waste stream, (3) heating the mixture to a predetermined reaction temperature from about 200 C to about 600 C, and (4) holding the mixture and accumulating products at heated and pressurized conditions for a residence time, thereby resulting in nitrogen and carbon dioxide gas, and hydroxides, and reducing the level of nitrates and nitrites to below drinking water standards.

Cox, J.L.; Hallen, R.T.; Lilga, M.A.

1992-06-02T23:59:59.000Z

260

Thermochemical nitrate destruction  

DOE Patents [OSTI]

A method is disclosed for denitrification of nitrates and nitrates present in aqueous waste streams. The method comprises the steps of (1) identifying the concentration nitrates and nitrites present in a waste stream, (2) causing formate to be present in the waste stream, (3) heating the mixture to a predetermined reaction temperature from about 200.degree. C. to about 600.degree. C., and (4) holding the mixture and accumulating products at heated and pressurized conditions for a residence time, thereby resulting in nitrogen and carbon dioxide gas, and hydroxides, and reducing the level of nitrates and nitrites to below drinking water standards.

Cox, John L. (Richland, WA); Hallen, Richard T. (Richland, WA); Lilga, Michael A. (Richland, WA)

1992-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "generation thermochemical code" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


261

Distributions of permutations generated by inhomogeneous Markov chains  

E-Print Network [OSTI]

Distributions of permutations generated by inhomogeneous Markov chains Diplomarbeit von Thomas 72 C Matlab - code for MCIT generated distributions 74 D Maple - code for the number of non for distributions of Bernoulli trials . . . . . . . . . . . . . . . 4 2.2.2 MCIT for quality control schemes

Neininger, Ralph

262

Usage Codes Additional Information  

E-Print Network [OSTI]

Usage Codes 1 5 2 6 3 7 4 8 Additional Information Winches (on deck) Electronics RPM: Max hoistingPresent? Usage Model Ratio Accuracy (m) Type: Electric / Hydraulic / Other _________________ KHz: GPS: Internal Other: Y / N Other: Y / N Y / NOther: Hydrophone Burned on board: Net sensors Usage Manufacturer High

263

The Woodland Carbon Code  

E-Print Network [OSTI]

The Woodland Carbon Code While society must continue to make every effort to reduce greenhouse gas a role by removing carbon dioxide from the atmosphere. The potential of woodlands to soak up carbon to help compensate for their carbon emissions. But before investing in such projects, people want to know

264

Environmental and Sustainability Factors Associated With Next-Generation Biofuels in the U.S.: What Do We Really Know?  

Science Journals Connector (OSTI)

Conventional ethanol biorefineries have become much more energy efficient over the last two decades, but these facilities are still dependent on fossil fuels (e.g., natural gas, coal) for heat and power (6, 18, 19, 97, 98). ... Both biochemical and thermochemical conversion processes are expected to generate varying amounts of boiler ash depending on the ash content of the cellulosic feedstock. ... This research will likely entail utilizing geographic information system (GIS) information and linking process-oriented models and sector models to develop a consistent framework that explicitly considers such trade-offs and other unintended consequences (10, 45). ...

Pamela R. D. Williams; Daniel Inman; Andy Aden; Garvin A. Heath

2009-05-27T23:59:59.000Z

265

Nebraska | Building Energy Codes Program  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Nebraska Nebraska Last updated on 2013-11-04 Current News Nebraska Legislature adopted the 2009 IECC/ASHRAE 90.1-2007. The code became effective August 27, 2011. Commercial Residential Code Change Current Code 2009 IECC Amendments / Additional State Code Information Cities and counties may adopt codes that differ from the Nebraska Energy Code; however, state law requires the adopted code to be equivalent to the Nebraska Energy Code. For existing buildings, only those renovations that will cost more than 50 percent of the replacement cost of the building must comply with the code. Approved Compliance Tools Can use COMcheck State Specific Research Impacts of ASHRAE 90.1-2007 for Commercial Buildings in the State of Nebraska (BECP Report, Sept. 2009) Approximate Energy Efficiency Equivalent to 2009 IECC

266

Summary | Building Energy Codes Program  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Summary Summary The impact of energy codes on our future is apparent. From environmental and resource conservation to national security, energy concerns, and our economic challenges, energy codes will continue to be a key component of a sound public policy. For further information on building energy code adoption, compliance, and enforcement, review the ACE toolkits Adoption Compliance Enforcement Popular Links ACE Learning Series ACE Overview Top 10 Reasons for Energy Codes Development of Energy Codes Adoption of Energy Codes Compliance with Energy Codes Enforcement of Energy Codes Going Beyond Code Summary Acronyms and Abbreviations Toolkit Definitions Adoption Toolkit Compliance Toolkit Enforcement Toolkit Contacts Web Site Policies U.S. Department of Energy USA.gov Last Updated: Thursday, January 31, 2013 - 15:19

267

Florida | Building Energy Codes Program  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Florida Florida Last updated on 2013-11-18 Current News The triennial code change process is currently underway. Florida expects to be equivalent to ASHRAE 90.1-10 and IECC 2012 by early 2014. Commercial Residential Code Change Current Code State Specific Amendments / Additional State Code Information N/A Approved Compliance Tools Can use State specific EnergyGauge Summit FlaCom State Specific Research Approximate Energy Efficiency Equivalent to ASHRAE 90.1-2007 Effective Date 03/15/2012 Code Enforcement Mandatory DOE Determination ASHRAE 90.1-2007: Yes ASHRAE 90.1-2010: No Florida DOE Determination Letter, May 31, 2013 Florida State Certification of Commercial Building Codes Current Code State Specific Amendments / Additional State Code Information Florida Building Code

268

Generation Planning (pbl/generation)  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Generation Hydro Power Wind Power Monthly GSP BPA White Book Dry Year Tools Firstgov Generation Planning Thumbnail image of BPA White Book BPA White Book (1998 - 2011) Draft Dry...

269

Building Energy Codes 101: An Introduction | Building Energy Codes Program  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Codes 101: An Introduction Codes 101: An Introduction In order to provide a basic introduction to the varied and complex issues associated with building energy codes, the U.S. Department of Energy's Building Energy Codes Program, with valued assistance from the International Codes Council and ASHRAE, has prepared Building Energy Codes 101: An Introduction. This guide is designed to speak to a broad audience with an interest in building energy efficiency, including state energy officials, architects, engineers, designers, and members of the public. Publication Date: Wednesday, February 17, 2010 BECP_Building Energy Codes 101_February2010_v00.pdf Document Details Last Name: Britt Initials: M Affiliation: PNNL Document Number: PNNL-70586 Focus: Adoption Code Development Compliance Building Type:

270

Compliance with Energy Codes | Building Energy Codes Program  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Compliance with Energy Codes Compliance with Energy Codes Energy code compliance must be achieved to realize the considerable benefits inherent in energy codes. BECP supports successful compliance by making no-cost compliance tools, REScheck(tm) and COMcheck(tm), and other resources widely available to everyone. BECP has also developed several resources to help states uniformly assess the rate of compliance with their energy codes for residential and commercial buildings. It is important to note that regardless of the level of enforcement, as a law the building owner/developer is ultimately responsible to comply with the energy code. Compliance will be increased if the adopting agency prepares the building construction community to comply with the energy code and provides resources to code officials to enforce it.

271

Simple Generators for List-Based Optimisers Maurice Clerc  

E-Print Network [OSTI]

Simple Generators for List-Based Optimisers Maurice Clerc 11th June 2014 Abstract A coded random number generator (RNG) is in fact a generator of a list of numbers (LNG), and any algorithm that uses is an optimiser: namely, a) there is no need of a complicated LNG, and b) the generated list can be very short, so

Paris-Sud XI, Université de

272

SIID Tangible CONTROLLED OBJECT CODES: CAPITALIZED OBJECT CODES  

E-Print Network [OSTI]

vehicle 1811 - Motor Vehicle Other 1812 - Aircraft 1813 - Motor Vehicle (Natural Gas conversion -Passengers Cars 1814 - Motor Vehicles - Natural Gas Conversion-other 1820 - Boats 1841- Software > 100kSIID Tangible CONTROLLED OBJECT CODES: CAPITALIZED OBJECT CODES: Capital Objects Codes That Do

Hofmann, Hans A.

273

" Row: NAICS Codes; Column: Electricity Components;"  

U.S. Energy Information Administration (EIA) Indexed Site

1.1 Electricity: Components of Net Demand, 2010;" 1.1 Electricity: Components of Net Demand, 2010;" " Level: National and Regional Data; " " Row: NAICS Codes; Column: Electricity Components;" " Unit: Million Kilowatthours." " "," " " "," ",,,"Total ","Sales and","Net Demand" "NAICS"," ",,"Transfers ","Onsite","Transfers","for" "Code(a)","Subsector and Industry","Purchases","In(b)","Generation(c)","Offsite","Electricity(d)" ,,"Total United States" 311,"Food",75652,21,5666,347,80993

274

" Row: NAICS Codes; Column: Electricity Components;"  

U.S. Energy Information Administration (EIA) Indexed Site

1.1 Electricity: Components of Net Demand, 2006;" 1.1 Electricity: Components of Net Demand, 2006;" " Level: National and Regional Data; " " Row: NAICS Codes; Column: Electricity Components;" " Unit: Million Kilowatthours." " "," " " "," ",,,"Total ","Sales and","Net Demand" "NAICS"," ",,"Transfers ","Onsite","Transfers","for" "Code(a)","Subsector and Industry","Purchases","In(b)","Generation(c)","Offsite","Electricity(d)" ,,"Total United States" 311,"Food",73242,309,4563,111,78003

275

Methane Hydrates Code Comparison  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Code Comparison Code Comparison Set-up for Problem 7 (Long-term simulations for Mt Elbert and PBU L- Pad "Like" Deposits) As discussed in the phone conference held on 11/9/2007, it is proposed that Problem 7 be made up of three separate cases: Problem 7a will look at a deposit similar to the Mt Elbert site. Problem 7b will be based on the PBU L-Pad site, and Problem 7c will be a down-dip version of the L-Pad site. In all three cases, a standard set of parameters will be used based on those found in Problem 6 (the history matches to the MDT data). The parameters chosen were consensus values based on the experiences of the various groups in attempting to match the MDT data for the C2 formation at Mount Elbert. Given below are the detailed descriptions of the three problems and the proposed

276

Minnesota | Building Energy Codes Program  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Minnesota Minnesota Last updated on 2013-06-03 Current News The 2009 editions of the International Residential Code (IRC), International Building Code (IBC), and International Fire Code (IFC) will be published soon and the Construction Codes and Licensing Division and the State Fire Marshal Division have been discussing this adoption. Commercial Residential Code Change Current Code ASHRAE Standard 90.1-2004 with Amendments Amendments / Additional State Code Information Commercial Energy Code Approved Compliance Tools Compliance forms can be downloaded from ASHRAE State Specific Research Impacts of ASHRAE 90.1-2007 for Commercial Buildings in the State of Minnesota (BECP Report, Sept. 2009) Approximate Energy Efficiency Less energy efficient than ASHRAE 90.1-2004 Effective Date 06/01/2009

277

News | Building Energy Codes Program  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

News News A variety of resources and news from BECP, states, and other news sources are available for anyone interested in learning more about building energy codes. This includes newsletters, articles, links and more. To receive BECP News and other updates from the Building Energy Codes Program via email, join our mailing list. Featured Codes News DOE Activities and Methodology for Assessing Compliance With Building Energy Codes RFI Mayors Urge Cities to Strengthen Energy Code AZ Legislature Preserves Local Control of Building Energy Efficiency Codes Washington State Home Builders Lead the Nation in Energy Code Compliance Mississippi Invests in Future Growth With Adoption of Best-in-Class Energy Efficiency Legislation Energy 2030 Report Calls for Stricter Energy Building Codes

278

Michigan | Building Energy Codes Program  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Michigan Michigan Last updated on 2013-06-03 Commercial Residential Code Change Current Code ASHRAE Standard 90.1-2007 with Amendments Amendments / Additional State Code Information 2009 Commercial MI Uniform Energy Code Rules Approved Compliance Tools Can use COMcheck State Specific Research Impacts of ASHRAE 90.1-2007 for Commercial Buildings in the State of Michigan (BECP Report, Sept. 2009) Approximate Energy Efficiency Equivalent to ASHRAE 90.1-2007 Effective Date 03/09/2011 Adoption Date 11/08/2010 Code Enforcement Mandatory DOE Determination ASHRAE 90.1-2007: No ASHRAE 90.1-2010: No Michigan DOE Determination Letter, May 31, 2013 Current Code 2009 IECC with Amendments Amendments / Additional State Code Information 2009 Residential MI Uniform Energy Code Rules Approved Compliance Tools Can use REScheck

279

Nevada Energy Code for Buildings  

Broader source: Energy.gov [DOE]

''Much of the information presented in this summary is drawn from the U.S. Department of Energy’s (DOE) Building Energy Codes Program and the Building Codes Assistance Project (BCAP). For more...

280

Network coding for anonymous broadcast  

E-Print Network [OSTI]

This thesis explores the use of network coding for anonymous broadcast. Network coding, the technique of transmitting or storing mixtures of messages rather than individual messages, can provide anonymity with its mixing ...

Sergeev, Ivan A

2013-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "generation thermochemical code" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


281

Matlab-Kinect Interface Code  

E-Print Network [OSTI]

This .zip file contains code and installation instructions for acquiring 3d arm movements in Matlab using the Microsoft Kinect 3d camera. The provided code has been validated in 32-bit and 64-bit Matlab with 32-bit and ...

Kowalski, Kevin

2012-06-01T23:59:59.000Z

282

Code of Practice Research Degrees  

E-Print Network [OSTI]

........................................................................ 15 Section Ten: FacilitiesCode of Practice For Research Degrees 2014/15 #12;2 Contents Section One: Preface ­ the purpose of the Code........................................................ 3 Section Two: Context

Evans, Paul

283

Georgia | Building Energy Codes Program  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Georgia Georgia Last updated on 2013-07-18 Commercial Residential Code Change Current Code 2009 IECC with Amendments Amendments / Additional State Code Information GA Amendments Approved Compliance Tools Can use COMcheck Must choose ASHRAE 90.1-2007 as code option. State Specific Research Impacts of ASHRAE 90.1-2007 for Commercial Buildings in the State of Georgia (BECP Report, Sept. 2009) Approximate Energy Efficiency Equivalent to 2009 IECC Effective Date 01/01/2011 Adoption Date 11/03/2010 Code Enforcement Mandatory DOE Determination ASHRAE 90.1-2007: Yes ASHRAE 90.1-2010: No Georgia State Certification of Commercial and Residential Building Codes Extension Request Current Code 2009 IECC with Amendments Amendments / Additional State Code Information GA Amendments Approved Compliance Tools Can use REScheck

284

Robust LT codes with alternating feedback  

Science Journals Connector (OSTI)

In this paper, we propose robust LT codes with alternating feedback (LT-AF codes), which lightly utilize the feedback channel and surpass the performance of existing LT codes with feedback. In LT-AF codes, we consider a loss prone feedback channel for ... Keywords: Erasure channel, Feedback channel, Forward error correction codes, LT codes, Rateless codes

Ali Talari, Nazanin Rahnavard

2014-08-01T23:59:59.000Z

285

Administrative Code Title 83, Public Utilities (Illinois) | Department of  

Broader source: Energy.gov (indexed) [DOE]

Administrative Code Title 83, Public Utilities (Illinois) Administrative Code Title 83, Public Utilities (Illinois) Administrative Code Title 83, Public Utilities (Illinois) < Back Eligibility Commercial Municipal/Public Utility Rural Electric Cooperative Transportation Utility Savings Category Alternative Fuel Vehicles Hydrogen & Fuel Cells Buying & Making Electricity Water Home Weatherization Solar Wind Program Info State Illinois Program Type Environmental Regulations Generating Facility Rate-Making Renewables Portfolio Standards and Goals Safety and Operational Guidelines Training/Technical Assistance Provider Illinois Commerce Commission In addition to general rules for utilities, this article states regulations for the protection of underground utilities, promotional practices of electric and gas public utilities construction of electric power and

286

## R code for fitting various polynomial regressions ## generate some data  

E-Print Network [OSTI]

= sin(2*pi*x) + rnorm(11, sd=0.3) ## plot it plot(x,y) ## fit a linear model lm1 = lm(y~x) ## you can look at the output with, e.g. summary(lm1) ## now fit everything lm10 = lm(y~x +I(x^2)+I(x^3)+I(x^4)+I(x^5)+I(x^6)+I(x^7)+I(x^8)+I(x^9)+I(x^10)) lm9 = lm(y~x +I(x^2)+I(x^3)+I(x^4)+I(x^5)+I(x^6)+I(x^7)+I

Reid, Nancy

287

Jitblt : efficient run-time code generation for digital compositing  

E-Print Network [OSTI]

Figure 1.1: User Interface Icon Created Through SuccessiveFigure 1.1: User Interface Icon Created Through SuccessiveRaj for his freely-available icon library which, because he

Amelang, Daniel James

2008-01-01T23:59:59.000Z

288

What's coming in 2012 codes  

E-Print Network [OSTI]

Administration Why Building Energy Codes Matter Why Building Energy Codes Matter ? Buildings account for 70% of electricity use ? Buildings account for 38% of CO2 emissions (Source: US Green Building Council) Residential Progress Commercial Progress... ? Southeast Energy Efficiency Alliance ? Southwest Energy Efficiency Project Why Building Energy Codes Matter Why Building Energy Codes Matter ? Share of Energy Consumed by Major Sectors of the Economy (2010) Source: U.S. Energy Information...

Lacey, E

2011-01-01T23:59:59.000Z

289

2009 Solar Decathlon Building Code  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

BUILDING CODE Last Updated: September 29, 2008 2009 Solar Decathlon Building Code i September 29, 2008 Contents Section 1. Introduction ............................................................................................................................................................. 1 Section 2. Adopted Codes ........................................................................................................................................................ 1 Section 3. Building Planning and Construction .............................................................................................................. 1 3-1. Fire Protection and Prevention ................................................................................................................................. 1

290

Rotationally invariant multilevel block codes  

E-Print Network [OSTI]

The objective of this thesis is to evaluate the performance of block codes that are designed to be rotationally invariant, in a multilevel coding scheme, over a channel modelled to be white gaussian noise. Also, the use of non-binary codes...

Kulandaivelu, Anita

2012-06-07T23:59:59.000Z

291

MATH 406/806 Introduction to Coding Theory  

E-Print Network [OSTI]

, convolutional codes, turbo codes, expander codes, low-density parity-check (LDPC) codes. References: R.M. Roth

Offin, Dan

292

Southeast Energy Efficiency Alliance's Building Energy Codes...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

Southeast Energy Efficiency Alliance's Building Energy Codes Project Southeast Energy Efficiency Alliance's Building Energy Codes Project Building Codes Project for the 2013...

293

Cal. Wat. Code § 13376 | Open Energy Information  

Open Energy Info (EERE)

Wat. Code 13376Legal Abstract Cal. Wat. Code 13376, current through August 14, 2014. Published NA Year Signed or Took Effect 2014 Legal Citation Cal. Wat. Code 13376...

294

Experience with advanced nodal codes at YAEC  

SciTech Connect (OSTI)

Yankee Atomic Electric Company (YAEC) has been performing reload licensing analysis since 1969. The basic pressurized water reactor (PWR) methodology involves the use of LEOPARD for cross-section generation, PDQ for radial power distributions and integral control rod worth, and SIMULATE for axial power distributions and differential control rod worth. In 1980, YAEC began performing reload licensing analysis for the Vermont Yankee boiling water reactor (BWR). The basic BWR methodology involves the use of CASMO for cross-section generation and SIMULATE for three-dimensional power distributions. In 1986, YAEC began investigating the use of CASMO-3 for cross-section generation and the advanced nodal code SIMULATE-3 for power distribution analysis. Based on the evaluation, the CASMO-3/SIMULATE-3 methodology satisfied all requirements. After careful consideration, the cost of implementing the new methodology is expected to be offset by reduced computing costs, improved engineering productivity, and fuel-cycle performance gains.

Cacciapouti, R.J.

1990-01-01T23:59:59.000Z

295

Development | Building Energy Codes Program  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Printable Version Printable Version Development Commercial Residential Adoption Compliance Regulations Resource Center Development The U.S. Department of Energy (DOE) supports and participates in the model building energy code development processes administered by the ASHRAE and the International Code Council (ICC). DOE activities include developing and submitting code change proposals, conducting analysis of building energy efficiency and cost savings, and formulating underlying evaluation methodologies. Through participation in model energy code development for both commercial and residential buildings, DOE strives to make cost-effective, energy efficient upgrades to current model codes. DOE also establishes energy efficiency standards for federal buildings and manufactured housing. Further information on this process is defined under

296

Energy Codes at a Glance  

SciTech Connect (OSTI)

Feeling dim from energy code confusion? Read on to give your inspections a charge. The U.S. Department of Energy’s Building Energy Codes Program addresses hundreds of inquiries from the energy codes community every year. This article offers clarification for topics of confusion submitted to BECP Technical Support of interest to electrical inspectors, focusing on the residential and commercial energy code requirements based on the most recently published 2006 International Energy Conservation Code® and ANSI/ASHRAE/IESNA1 Standard 90.1-2004.

Cole, Pamala C.; Richman, Eric E.

2008-09-01T23:59:59.000Z

297

Wyner-Ziv coding based on TCQ and LDPC codes and extensions to multiterminal source coding  

E-Print Network [OSTI]

to approach the Wyner-Ziv distortion limit D??W Z(R), the trellis coded quantization (TCQ) technique is employed to quantize the source X, and irregular LDPC code is used to implement Slepian-Wolf coding of the quantized source input Q(X) given the side...

Yang, Yang

2005-11-01T23:59:59.000Z

298

Pennsylvania | Building Energy Codes Program  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Pennsylvania Pennsylvania Last updated on 2013-11-05 Commercial Residential Code Change Current Code 2009 IECC Amendments / Additional State Code Information Pennsylvania's current code is the 2009 IECC with reference to ASHRAE 90.1-2007. Approved Compliance Tools Can use COMcheck State Specific Research Impacts of ASHRAE 90.1-2007 for Commercial Buildings in the State of Pennsylvania (BECP Report, Sept. 2009) Approximate Energy Efficiency Equivalent to 2009 IECC Effective Date 12/31/2009 Adoption Date 12/10/2009 Code Enforcement Mandatory DOE Determination ASHRAE 90.1-2007: Yes ASHRAE 90.1-2010: No Pennsylvania DOE Determination Letter, May 31, 2013 Pennsylvania State Certification of Commercial and Residential Building Energy Codes Current Code 2009 IECC Amendments / Additional State Code Information Pennsylvania's current residential code is the 2009 IECC, 2009 IRC, Chapter 11, and/or PA-Alt. Adherence to Pennsylvania's Alternative Residential Energy Provisions 2009 is an acceptable means of demonstrating compliance with the energy conservation code requirements of the Uniform Construction Code.

299

Ohio | Building Energy Codes Program  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Ohio Ohio Last updated on 2013-10-21 Commercial Residential Code Change Current Code 2009 IECC Amendments / Additional State Code Information Ohio's commercial code is the 2009 IECC with a direct reference to ASHRAE 90.1-07. Approved Compliance Tools Can use COMcheck State Specific Research Impacts of ASHRAE 90.1-2007 for Commercial Buildings in the State of Ohio (BECP Report, Sept. 2009) Approximate Energy Efficiency Equivalent to 2009 IECC Effective Date 11/01/2011 Adoption Date 03/07/2011 Code Enforcement Mandatory DOE Determination ASHRAE 90.1-2007: Yes ASHRAE 90.1-2010: No Ohio DOE Determination Letter, May 31, 2013 Ohio State Certification of Commercila and Residential Building Energy Codes Current Code 2009 IECC with Amendments Amendments / Additional State Code Information Effective January 1, 2013 the residential code in Ohio is based on Chapter 11 of the 2009 IRC. It includes the 2009 IECC and state-specific alternative compliance paths. The 2013 Residential Code of Ohio (RCO) contains amendments to allow compliance to be demonstrated in three ways: (1) 2009 IECC; or (2) RCO Sections 1101 through 1104; or RCO Section 1105 ("The Ohio Homebuilder's Association Alternative Energy Code Option").

300

The OPAL opacity code: New results  

SciTech Connect (OSTI)

The OPAL code was developed to calculate the wide range of frequency-dependent and mean opacity data needed to model laboratory experiments and stellar interiors. We use parametric potentials to generate vastly more atomic data than used in earlier opacity work for all elements with atomic number less than 35. We have also developed an improved equation of state based on an activity expansion of the grand canonical partition function. We give herein a brief description of the OPAL code and present new results that include the effect of additional heavy elements compared to our earlier carbons. The importance of very heavy elements having atomic number greater than 30 is also discussed. We present some comparisons with recent results from the Opacity Project and some directions for future work.

Rogers, F.J.; Iglesias, C.A.

1994-12-31T23:59:59.000Z

Note: This page contains sample records for the topic "generation thermochemical code" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


301

Kentucky | Building Energy Codes Program  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Kentucky Kentucky Last updated on 2013-08-02 Current News Kentucky moves forward with the 2009 IECC by reference in their updated 2007 Kentucky Building Code. 2009 IECC is effective 3/6/2011 with mandatory compliance beginning 6/1/2011. Kentucky residential code was also updated to the 2009 IECC. The code is effective 7/1/2012 with an enforcement date of 10/1/2012. Commercial Residential Code Change Current Code 2009 IECC with Amendments Amendments / Additional State Code Information Amendments are contained in the latest update to the 2007 Kentucky Building Code. Approved Compliance Tools Can use COMcheck State Specific Research Impacts of ASHRAE 90.1-2007 for Commercial Buildings in the State of Kentucky (BECP Report, Sept. 2009) Approximate Energy Efficiency Equivalent to 2009 IECC

302

Wyoming | Building Energy Codes Program  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Wyoming Wyoming Last updated on 2013-06-03 Commercial Residential Code Change Current Code None Statewide Amendments / Additional State Code Information The International Conference of Building Officials (ICBO) Uniform Building Code, which is based on the 1989 Model Energy Code (MEC), may be adopted and enforced by local jurisdictions. Approved Compliance Tools Can use COMcheck State Specific Research Impacts of ASHRAE Standard 90.1-2007 for Commercial Buildings in the State of Wyoming (BECP Report, Sept. 2009) Approximate Energy Efficiency Less energy efficient than 2003 IECC Effective Date 08/13/2008 Code Enforcement Voluntary DOE Determination ASHRAE Standard 90.1-2007: No ASHRAE Standard 90.1-2010: No Wyoming DOE Determination Letter, May 31, 2013 Current Code None Statewide

303

Hydrogen Vehicle and Infrastructure Codes and Standards Citations (Brochure), NREL (National Renewable Energy Laboratory)  

Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

Hydrogen Vehicle and Infrastructure Codes and Standards Citations Hydrogen Vehicle and Infrastructure Codes and Standards Citations This document lists codes and standards typically used for U.S. hydrogen vehicle and infrastructure projects. To determine which codes and standards apply to a specific project, identify the codes and standards currently in effect within the jurisdiction where the project will be located. Some jurisdictions also have unique ordinances or regulations that could apply. Learn about codes and standards basics at www.afdc.energy.gov/afdc/codes_standards_basics.html. Find hydrogen vehicle and infrastructure codes and standards in these categories: * Annual Inspections and Approvals * General Station Requirements * Gaseous Hydrogen Storage, Compression, and Generation Systems * Liquefied Hydrogen Storage Systems

304

Methodology for fast detection of false sharing in threaded scientific codes  

DOE Patents [OSTI]

A profiling tool identifies a code region with a false sharing potential. A static analysis tool classifies variables and arrays in the identified code region. A mapping detection library correlates memory access instructions in the identified code region with variables and arrays in the identified code region while a processor is running the identified code region. The mapping detection library identifies one or more instructions at risk, in the identified code region, which are subject to an analysis by a false sharing detection library. A false sharing detection library performs a run-time analysis of the one or more instructions at risk while the processor is re-running the identified code region. The false sharing detection library determines, based on the performed run-time analysis, whether two different portions of the cache memory line are accessed by the generated binary code.

Chung, I-Hsin; Cong, Guojing; Murata, Hiroki; Negishi, Yasushi; Wen, Hui-Fang

2014-11-25T23:59:59.000Z

305

Thermoelectric Generators 1. Thermoelectric generator  

E-Print Network [OSTI]

. Cold Hot I - -- - - - - -- Figure 1 Electron concentration in a thermoelectric material. #12;2 A large1 Thermoelectric Generators HoSung Lee 1. Thermoelectric generator 1.1 Basic Equations In 1821 on the direction of current and material [3]. This is called the Thomson effect (or Thomson heat). These three

Lee, Ho Sung

306

Quasiseparable Generators  

Science Journals Connector (OSTI)

It is clear from the preceding chapter that any matrix has quasiseparable representations. By padding given quasiseparable generators with zero matrices of large sizes one ... large orders. However, one is lookin...

Yuli Eidelman; Israel Gohberg…

2014-01-01T23:59:59.000Z

307

Building Energy Codes News | Building Energy Codes Program  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Building Energy Codes News Building Energy Codes News News Category: National Policy DOE Activities and Methodology for Assessing Compliance With Building Energy Codes RFI Posted: Tuesday, August 6, 2013 On August 6, DOE published an RFI on its methodology for assessing code compliance into the Federal Register. Based on feedback received from the individual state compliance pilot studies in 2011-2012, the RFI seeks input on DOE's methodology and fundamental assumptions from the general public. Read the full article... Source: U.S. Department of Energy Building Energy Codes Program Energy 2030 Report Calls for Stricter Energy Building Codes Posted: Tuesday, February 12, 2013 The Alliance Commission on National Energy Efficiency Policy aims to double US energy productivity by 2030, and one of its many ways to achieve that

308

Top 10 Reasons for Energy Codes | Building Energy Codes Program  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Top 10 Reasons for Energy Codes Top 10 Reasons for Energy Codes The projected energy savings attributable to energy codes translates into an estimated cumulative savings of 800 million metric tons of carbon dioxide by 2030-that's equivalent to removing 145 million vehicles from our nation's roadways. Here are the top 10 reasons for adopting and implementing energy codes. Today's global energy, economic, and environmental challenges necessitate a U.S. strategy identifying a suite of energy-efficiency-related initiatives that is implemented by the building industry and relevant stakeholders. Energy codes are a core component of that strategy and, in addition, have an impact on other strategies to improve our built environment. Energy Codes... SAVE money and help reduce needless consumption of energy to heat,

309

RH-TRU Waste Content Codes (RH-TRUCON)  

SciTech Connect (OSTI)

The Remote-Handled Transuranic (RH-TRU) Content Codes (RH-TRUCON) document describes the inventory of RH-TRU waste within the transportation parameters specified by the Remote-Handled Transuranic Waste Authorized Methods for Payload Control (RH-TRAMPAC).1 The RH-TRAMPAC defines the allowable payload for the RH-TRU 72-B. This document is a catalog of RH-TRU 72-B authorized contents by site. A content code is defined by the following components: • A two-letter site abbreviation that designates the physical location of the generated/stored waste (e.g., ID for Idaho National Laboratory [INL]). The site-specific letter designations for each of the sites are provided in Table 1. • A three-digit code that designates the physical and chemical form of the waste (e.g., content code 317 denotes TRU Metal Waste). For RH-TRU waste to be transported in the RH-TRU 72-B, the first number of this three-digit code is “3.” The second and third numbers of the three-digit code describe the physical and chemical form of the waste. Table 2 provides a brief description of each generic code. Content codes are further defined as subcodes by an alpha trailer after the three-digit code to allow segregation of wastes that differ in one or more parameter(s). For example, the alpha trailers of the subcodes ID 322A and ID 322B may be used to differentiate between waste packaging configurations. As detailed in the RH-TRAMPAC, compliance with flammable gas limits may be demonstrated through the evaluation of compliance with either a decay heat limit or flammable gas generation rate (FGGR) limit per container specified in approved content codes. As applicable, if a container meets the watt*year criteria specified by the RH-TRAMPAC, the decay heat limits based on the dose-dependent G value may be used as specified in an approved content code. If a site implements the administrative controls outlined in the RH-TRAMPAC and Appendix 2.4 of the RH-TRU Payload Appendices, the decay heat or FGGR limits based on a 10-day shipping period (rather than the standard 60-day shipping period) may be used as specified in an approved content code. Requests for new or revised content codes may be submitted to the WIPP RH-TRU Payload Engineer for review and approval, provided all RH-TRAMPAC requirements are met.

Washington TRU Solutions

2007-05-30T23:59:59.000Z

310

RH-TRU Waste Content Codes (RH-TRUCON)  

SciTech Connect (OSTI)

The Remote-Handled Transuranic (RH-TRU) Content Codes (RH-TRUCON) document describes the inventory of RH-TRU waste within the transportation parameters specified by the Remote-Handled Transuranic Waste Authorized Methods for Payload Control (RH-TRAMPAC).1 The RH-TRAMPAC defines the allowable payload for the RH-TRU 72-B. This document is a catalog of RH-TRU 72-B authorized contents by site. A content code is defined by the following components: • A two-letter site abbreviation that designates the physical location of the generated/stored waste (e.g., ID for Idaho National Laboratory [INL]). The site-specific letter designations for each of the sites are provided in Table 1. • A three-digit code that designates the physical and chemical form of the waste (e.g., content code 317 denotes TRU Metal Waste). For RH-TRU waste to be transported in the RH-TRU 72-B, the first number of this three-digit code is “3.” The second and third numbers of the three-digit code describe the physical and chemical form of the waste. Table 2 provides a brief description of each generic code. Content codes are further defined as subcodes by an alpha trailer after the three-digit code to allow segregation of wastes that differ in one or more parameter(s). For example, the alpha trailers of the subcodes ID 322A and ID 322B may be used to differentiate between waste packaging configurations. As detailed in the RH-TRAMPAC, compliance with flammable gas limits may be demonstrated through the evaluation of compliance with either a decay heat limit or flammable gas generation rate (FGGR) limit per container specified in approved content codes. As applicable, if a container meets the watt*year criteria specified by the RH-TRAMPAC, the decay heat limits based on the dose-dependent G value may be used as specified in an approved content code. If a site implements the administrative controls outlined in the RH-TRAMPAC and Appendix 2.4 of the RH-TRU Payload Appendices, the decay heat or FGGR limits based on a 10-day shipping period (rather than the standard 60-day shipping period) may be used as specified in an approved content code. Requests for new or revised content codes may be submitted to the WIPP RH-TRU Payload Engineer for review and approval, provided all RH-TRAMPAC requirements are met.

Washington TRU Solutions LLC

2007-08-01T23:59:59.000Z

311

Description of the capabilities of the individual heliostat code  

SciTech Connect (OSTI)

The individual heliostat, or IH, computer code developed at the University of Houston is available to define heliostat location coordinates of an optimized collector field, and compute in detail the performance of the defined field. In order for IH to generate optimized fields specified by the RC optimization code, IH requires output from CELLAY. CELLAY is a stand-alone program that takes output from the RC system and generates input for the IH programs. A subroutine called LAYOUT and its associated subroutines are the primary source for generating heliostat location coordinates. Boundaries, slip planes, and deletes are all controlled by specification of key variables which occurs before the general sequence of calculations. The IH performance code is similar to the cellwise performance code (NS) with the sum over cells being replaced by a sum over heliostats. Each heliostat has associated with it several quantities which are calculated and output so that the action of the system can be monitored over the course of time. The IH system of computer programs is a collector field layout and performance code for solar central receiver systems.

Walzel, M.D.

1980-07-01T23:59:59.000Z

312

Arkansas | Building Energy Codes Program  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Arkansas Arkansas Last updated on 2013-12-10 Current News ASHRAE 90.1-2007 became the effective commercial code in Arkansas on January 1, 2013. Commercial Residential Code Change Current Code ASHRAE Standard 90.1-2007 with Amendments Amendments / Additional State Code Information Arkansas Supplements and Amendments Approved Compliance Tools Can use COMcheck State Specific Research Impacts of ASHRAE 90.1-2007 for Commercial Buildings in the State of Arkansas Approximate Energy Efficiency Equivalent to ASHRAE 90.1-2007 Effective Date 01/01/2013 Adoption Date 01/13/2012 Code Enforcement Mandatory DOE Determination ASHRAE Standard 90.1-2007: Yes ASHRAE Standard 90.1-2010: No Energy cost savings for Arkansas resulting from the state updating its commercial and residential building energy codes in accordance with federal law are significant, estimated to be on the order of nearly $100 million annually by 2030.

313

Delaware | Building Energy Codes Program  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Site Map Printable Version Development Adoption Adoption Process State Technical Assistance Status of State Energy Code Adoption Compliance Regulations Resource Center Delaware Last updated on 2013-08-02 Commercial Residential Code Change Current Code 2009 IECC with Amendments Amendments / Additional State Code Information Agriculture structures are excluded. Approved Compliance Tools Can use COMcheck State Specific Research Impacts of ASHRAE 90.1-2007 for Commercial Buildings in the State of Delaware (BECP Report, Sept. 2009) Approximate Energy Efficiency Equivalent to 2009 IECC Effective Date 07/01/2010 Adoption Date 07/29/2009 Code Enforcement Mandatory DOE Determination ASHRAE 90.1-2007: Yes ASHRAE 90.1-2010: No Delaware DOE Determination Letter, May 31, 2013 Delaware State Certification of Commercial and Residential Building Energy Codes

314

Pradeep Agrawal Dr. Pradeep Agrawal's research is focused on the development of thermochemical pathways for converting ligno-  

E-Print Network [OSTI]

agricultural waste and forest residue) can be gasified to produce syngas (CO + H2). Biomass gasification high pressure biomass gasification under conditions that mimic the next generation of gasification pressure biomass gasification. Gasification offers the advantage that all types of biomass (including

Gallivan, Martha A.

315

Microwave generator  

DOE Patents [OSTI]

A microwave generator is provided for generating microwaves substantially from virtual cathode oscillation. Electrons are emitted from a cathode and accelerated to an anode which is spaced apart from the cathode. The anode has an annular slit there through effective to form the virtual cathode. The anode is at least one range thickness relative to electrons reflecting from the virtual cathode. A magnet is provided to produce an optimum magnetic field having the field strength effective to form an annular beam from the emitted electrons in substantial alignment with the annular anode slit. The magnetic field, however, does permit the reflected electrons to axially diverge from the annular beam. The reflected electrons are absorbed by the anode in returning to the real cathode, such that substantially no reflexing electrons occur. The resulting microwaves are produced with a single dominant mode and are substantially monochromatic relative to conventional virtual cathode microwave generators. 6 figs.

Kwan, T.J.T.; Snell, C.M.

1987-03-31T23:59:59.000Z

316

Hydrogen Storage CODES & STANDARDS  

E-Print Network [OSTI]

W by 2010. · Develop a distributed generation PEM fuel cell system operating on natural gas or propane) 45% (w/ reformer) Fuel Cell System WeightWeightLifeLifeCostCost, etc. #12;6 Fuel Cell R&D Activities are Based on the Critical Challenges · Cost ­ Lowering the cost

317

Green Construction Codes  

E-Print Network [OSTI]

LEED Incentives / LEED Trained Reviewers ? 5 Star Energy Efficiency Program ? Class B Office Upgrade Reimbursements ? Tax Incentive for LEED Building ? Infrastructure Design Manual-Low Impact Design (LID) ? City Buildings Energy Star Program...% Portfolio) ? Solar Powered Generators ? Hybrid Vehicle Fleet ? EV Charging Station Grid ? Reuse Warehouse ? Brownfields Municiple Setting Designations ? Waterworks Museum ? 1Million Trees / Community Gardens ? Green Office Challenge > 300...

Blake, S.

2011-01-01T23:59:59.000Z

318

SAS4A LMFBR whole core accident analysis code  

SciTech Connect (OSTI)

To ensure that public health and safety are protected even under accident conditions in an LMFBR, many accidents are analyzed for their potential consequences. Extremely unlikely accidents that might lead to melting of reactor fuel and release of radioactive fission products are referred to as hypothetical core disruptive accidents (HCDAs). The evaluation of such accidents involves the simultaneous evaluation of thermal, mechanical, hydraulic and neutronic processes and their interactions. The complexity of this analysis requires the use of large, integrated computer codes which address the response of the reactor core and several important systems. The SAS family of codes, developed at Argonne National Laboratory, provides such an analysis capability. The SAS4A code, the latest generation of this series of codes, has recently been completed and released for use to the LMFBR safety community. This paper will summarize the important new capabilitites of this analysis tool and illustrate an application of the integrated capability, while highlighting the importance of specific phenomenological models.

Weber, D.P.; Birgersson, G.; Bordner, G.L.; Briggs, L.L.; Cahalan, J.E.; Dunn, F.E.; Kalimullah; Miles, K.J.; Prohammer, F.G.; Tentner, A.M.

1985-01-01T23:59:59.000Z

319

SEAMOPT - Stirling engine optimization code  

SciTech Connect (OSTI)

Experience is described with use of a fast-running Stirling engine optimization code developed at Argonne intended for public release. Stirling engine modeling is provided by the SEAM1 thermodynamic code. An interface was written to combine SEAM1 with a general optimization code and assess maximum component stress levels. Thus full engine thermodynamic and structural simulation is done during the optimization process. Several examples of the use of this code to optimize the GPU-3 engine are described. In one case efficiency was improved by over 25%.

Heames, T.J.; Daley, J.G.

1984-01-01T23:59:59.000Z

320

BPA Hotline & Codes of Conduct  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Hotline & Codes of Conduct Pages default Sign In About | Careers | Contact | Investors | bpa.gov Search News & Us Expand News & Us Projects & Initiatives Expand Projects &...

Note: This page contains sample records for the topic "generation thermochemical code" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


321

Fault-Tolerant Conversion between the Steane and Reed-Muller Quantum Codes  

Science Journals Connector (OSTI)

Steane’s 7-qubit quantum error-correcting code admits a set of fault-tolerant gates that generate the Clifford group, which in itself is not universal for quantum computation. The 15-qubit Reed-Muller code also does not admit a universal fault-tolerant gate set but possesses fault-tolerant T and control-control-Z gates. Combined with the Clifford group, either of these two gates generates a universal set. Here, we combine these two features by demonstrating how to fault-tolerantly convert between these two codes, providing a new method to realize universal fault-tolerant quantum computation. One interpretation of our result is that both codes correspond to the same subsystem code in different gauges. Our scheme extends to the entire family of quantum Reed-Muller codes.

Jonas T. Anderson; Guillaume Duclos-Cianci; David Poulin

2014-08-20T23:59:59.000Z

322

FOUNDATION REVENUE OBJECT CODES LSU Foundation Revenue Object Codes  

E-Print Network [OSTI]

FOUNDATION REVENUE OBJECT CODES 4 page 1 LSU Foundation Revenue Object Codes 0F00 Foundation - Balance Forward 0F01 Foundation - Other Contributions 0F02 Foundation - State of Louisiana 0F03 Foundation - Corporate Contributions 0F04 Foundation - Corporate Match Contributions 0F05 Foundation - Individual

Harms, Kyle E.

323

Stateful Testing: Finding More Errors in Code and Contracts  

E-Print Network [OSTI]

. The generated test cases are designed to violate the dynamically inferred contracts (invariants) characterizing the existing test suite. As a consequence, they are in a good position to detect new faults, and alsoStateful Testing: Finding More Errors in Code and Contracts Yi Wei · Hannes Roth · Carlo A. Furia

Meyer, Bertrand

324

Flexible Generators for Software Reuse and Evolution (NIER Track)  

E-Print Network [OSTI]

Flexible Generators for Software Reuse and Evolution (NIER Track) Stan Jarzabek and Ha Duy Trung@comp.nus.edu.sg ABSTRACT Developers tend to use models and generators during initial development, but often abandon them later in software evolution and reuse. One reason for that is that code generated from models (e.g., UML

Jarzabek, Stan

325

Generating Test Data from SOFL Specifications \\Lambda A. Jefferson Offutt  

E-Print Network [OSTI]

Generating Test Data from SOFL Specifications \\Lambda A. Jefferson Offutt ISSE Department, 4A4@cs.hiroshima­cu.ac.jp Abstract Software testing can only be formalized and quantified when a solid basis for test generation can be defined. Tests are commonly generated from the source code, control flow graphs, design representations

Offutt, Jeff

326

Bureau of Construction Codes - 2009 Michigan Uniform Energy Code - Commercial  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

These rules take effect March 9, 2011 (By authority conferred on the director of the department of energy, labor, and economic growth by section 4 of 1972 PA 230, MCL 125.1504, and Executive Reorganization Order Nos. 2003-1 and 2008-20, MCL 445.2011 and MCL 445.2025) R 408.31087, R 408.31088, R 408.31089, and R 408.31090 of the Michigan Administrative Code are amended and R 408.31087a is added to the code as follows: PART 10a MICHIGAN UNIFORM ENERGY CODE R 408.31087 Applicable code. Rule 1087. Rules governing the energy efficiency for the design and construction of buildings and structures, not including residential buildings, shall be those contained in the international energy conservation code, 2009 edition, section 501.1 and the ASHRAE

327

Numerical analysis of hydrogen production via methane steam reforming in porous media solar thermochemical reactor using concentrated solar irradiation as heat source  

Science Journals Connector (OSTI)

Abstract The calorific value of syngas can be greatly upgraded during the methane steam reforming process by using concentrated solar energy as heat source. In this study, the Monte Carlo Ray Tracing (MCRT) and Finite Volume Method (FVM) coupling method is developed to investigate the hydrogen production performance via methane steam reforming in porous media solar thermochemical reactor which includes the mass, momentum, energy and irradiative transfer equations as well as chemical reaction kinetics. The local thermal non-equilibrium (LTNE) model is used to provide more temperature information. The modified P1 approximation is adopted for solving the irradiative heat transfer equation. The MCRT method is used to calculate the sunlight concentration and transmission problems. The fluid phase energy equation and transport equations are solved by Fluent software. The solid phase energy equation, irradiative transfer equation and chemical reaction kinetics are programmed by user defined functions (UDFs). The numerical results indicate that concentrated solar irradiation on the fluid entrance surface of solar chemical reactor is highly uneven, and temperature distribution has significant influence on hydrogen production.

Fuqiang Wang; Jianyu Tan; Yong Shuai; Liang Gong; Heping Tan

2014-01-01T23:59:59.000Z

328

Energy and exergy analyses of a solar driven Mg–Cl hybrid thermochemical cycle for co-production of power and hydrogen  

Science Journals Connector (OSTI)

Abstract Analysis and performance assessment of a solar driven hydrogen production plant running on an Mg–Cl cycle, are conducted through energy and exergy methods. The proposed system consists of (a) a concentrating solar power cycle with thermal energy storage, (b) a steam power plant with reheating and regeneration, and (c) a hybrid thermochemical Mg–Cl hydrogen production cycle. The results show that higher steam to magnesium molar ratios are required for full yield of reactants at the hydrolysis step. This ratio even increases at low temperatures, although lowering the highest temperatures appears to be more favorable for linking such a cycle to lower temperature energy sources. Reducing the maximum cycle temperature decreases the plant energy and exergy efficiencies and may cause some undesirable reactions and effects. The overall system energy and exergy efficiencies are found to be 18.8% and 19.9%, respectively, by considering a solar heat input. These efficiencies are improved to 26.9% and 40.7% when the heat absorbed by the molten salt is considered and used as a main energy input to the system. The highest exergy destruction rate occurs in the solar field which accounts for 79% of total exergy destruction of the integrated system.

Hasan Ozcan; Ibrahim Dincer

2014-01-01T23:59:59.000Z

329

Thermochemical cyclic system for decomposing H/sub 2/O and/or CO/sub 2/ by means of cerium-titanium-sodium-oxygen compounds  

DOE Patents [OSTI]

A thermochemical closed cyclic process for the decomposition of water and/or carbon dioxide to hydrogen and/or carbon monoxide begins with the reaction of ceric oxide (CeO/sub 2/), titanium dioxide (TiO/sub 2/) and sodium titanate (Na/sub 2/TiO/sub 3/) to form sodium cerous titanate (NaCeTi/sub 2/O/sub 6/) and oxygen. Sodium cerous titanate (NaCeTi/sub 2/O/sub 6/) reacted with sodium carbonate (Na/sub 2/CO/sub 3/) in the presence of steam, produces hydrogen. The same reaction, in the absence of steam, produces carbon monoxide. The products, ceric oxide and sodium titanate, obtained in either case, are treated with carbon dioxide and water to produce ceric oxide, titanium dioxide, sodium titanate, and sodium bicarbonate. After dissolving sodium bicarbonate from the mixture in water, the remaining insoluble compounds are used as starting materials for a subsequent cycle. The sodium bicarbonate can be converted to sodium carbonate by heating and returned to the cycle.

Bamberger, C.E.

1980-04-24T23:59:59.000Z

330

Thermochemical cyclic system for decomposing H.sub.2 O and/or CO.sub.2 by means of cerium-titanium-sodium-oxygen compounds  

SciTech Connect (OSTI)

A thermochemical closed cyclic process for the decomposition of water and/or carbon dioxide to hydrogen and/or carbon monoxide begins with the reaction of ceric oxide (CeO.sub.2), titanium dioxide (TiO.sub.2) and sodium titanate (Na.sub.2 TiO.sub.3) to form sodium cerous titanate (NaCeTi.sub.2 O.sub.6) and oxygen. Sodium cerous titanate (NaCeTi.sub.2 O.sub.6) reacted with sodium carbonate (Na.sub.2 CO.sub.3) in the presence of steam, produces hydrogen. The same reaction, in the absence of steam, produces carbon monoxide. The products, ceric oxide and sodium titanate, obtained in either case, are treated with carbon dioxide and water to produce ceric oxide, titanium dioxide, sodium titanate, and sodium bicarbonate. After dissolving sodium bicarbonate from the mixture in water, the remaining insoluble compounds are used as starting materials for a subsequent cycle. The sodium bicarbonate can be converted to sodium carbonate by heating and returned to the cycle.

Bamberger, Carlos E. (Oak Ridge, TN)

1982-01-01T23:59:59.000Z

331

Analysis of the KUCA MEU experiments using the ANL code system  

SciTech Connect (OSTI)

This paper provides some preliminary results on the analysis of the KUCA critical experiments using the ANL code system. Since this system was employed in the earlier neutronics calculations for the KUHFR, it is important to assess its capabilities for the KUHFR. The KUHFR has a unique core configuration which is difficult to model precisely with current diffusion theory codes. This paper also provides some results from a finite-element diffusion code (2D-FEM-KUR), which was developed in a cooperative research program between KURRI and JAERI. This code provides the capability for mockup of a complex core configuration as the KUHFR. Using the same group constants generated by the EPRI-CELL code, the results of the 2D-FEM-KUR code are compared with the finite difference diffusion code (DIF3D(2D) which is mainly employed in this analysis.

Shiroya, S.; Hayashi, M.; Kanda, K.; Shibata, T.; Woodruff, W.L.; Matos, J.E.

1982-01-01T23:59:59.000Z

332

Louisiana | Building Energy Codes Program  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Louisiana Louisiana Last updated on 2013-08-02 Commercial Residential Code Change Current Code ASHRAE Standard 90.1-2007 Amendments / Additional State Code Information N/A Approved Compliance Tools Can use COMcheck State Specific Research Impacts of ASHRAE 90.1-2007 for Commercial Buildings in the State of Louisiana (BECP Report, Sept. 2009) Approximate Energy Efficiency Equivalent to ASHRAE 90.1-2007 Effective Date 07/20/2011 Adoption Date 07/20/2011 Code Enforcement Mandatory DOE Determination ASHRAE 90.1-2007: Yes ASHRAE 90.1-2010: No Louisiana DOE Determination Letter, May 31, 2013 Louisiana State Certification of Commercial and Residential Building Energy Codes Current Code 2006 IRC Amendments / Additional State Code Information Louisiana's current residential code is the 2006 IRC with direct reference to the 2006 IECC. All AC duct insulation is R6 instead of R8 and to include Section R301.2.1.1 of the 2003 edition of the IRC in lieu of Section R301.2.1.1 of the 2006 edition.

333

LFSC - Linac Feedback Simulation Code  

SciTech Connect (OSTI)

The computer program LFSC (Code>) is a numerical tool for simulation beam based feedback in high performance linacs. The code LFSC is based on the earlier version developed by a collective of authors at SLAC (L.Hendrickson, R. McEwen, T. Himel, H. Shoaee, S. Shah, P. Emma, P. Schultz) during 1990-2005. That code was successively used in simulation of SLC, TESLA, CLIC and NLC projects. It can simulate as pulse-to-pulse feedback on timescale corresponding to 5-100 Hz, as slower feedbacks, operating in the 0.1-1 Hz range in the Main Linac and Beam Delivery System. The code LFSC is running under Matlab for MS Windows operating system. It contains about 30,000 lines of source code in more than 260 subroutines. The code uses the LIAR ('Linear Accelerator Research code') for particle tracking under ground motion and technical noise perturbations. It uses the Guinea Pig code to simulate the luminosity performance. A set of input files includes the lattice description (XSIF format), and plane text files with numerical parameters, wake fields, ground motion data etc. The Matlab environment provides a flexible system for graphical output.

Ivanov, Valentin; /Fermilab

2008-05-01T23:59:59.000Z

334

on education Code of Ethics  

E-Print Network [OSTI]

the forum Abroad on education Code of Ethics for Education Abroad #12;The Forum on Education Abroad Code of Ethics for Education Abroad Contents Page Section I Preamble 2 Section II Ethical Principles for Education Abroad 3 Section III Ethical Guidelines: Examples of Ethical Best 6 Practices for Education Abroad

Illinois at Chicago, University of

335

Secure Symmetrical Multilevel Diversity Coding  

E-Print Network [OSTI]

Secure symmetrical multilevel diversity coding (S-SMDC) is a source coding problem, where a total of L - N discrete memoryless sources (S1,...,S_L-N) are to be encoded by a total of L encoders. This thesis considers a natural generalization of SMDC...

Li, Shuo

2012-07-16T23:59:59.000Z

336

Tennessee | Building Energy Codes Program  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Tennessee Tennessee Last updated on 2013-08-02 Commercial Residential Code Change Current Code 2006 IECC Approved Compliance Tools Can use COMcheck State Specific Research Impacts of ASHRAE 90.1-2007 for Commercial Buildings in the State of Tennessee (BECP Report, Sept. 2009) Approximate Energy Efficiency Equivalent to 2006 IECC Effective Date 07/01/2011 Adoption Date 06/02/2011 Code Enforcement Mandatory DOE Determination ASHRAE 90.1-2007: No ASHRAE 90.1-2010: No Tennessee DOE Determination Letter, May 31, 2013 Tennessee State Certification of Commercial and Residential Building Energy Codes Current Code 2006 IECC Approved Compliance Tools Can use REScheck State Specific Research Impacts of the 2009 IECC for Residential Buildings in the State of Tennessee (BECP Report, Sept. 2009)

337

ALOHA Code | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

ALOHA Code ALOHA Code ALOHA Code Central Registry Toolbox Code Version(s): V5.2.3 Code Owner: National Oceanic and Atmospheric Administration (NOAA) Description: The Arial Locations of Hazardous Atmospheres (ALOHA) is atmospheric dispersion model maintained by the Hazardous Materials Division of National Oceanic and Atmospheric Administration (NOAA). ALOHA is one of three separate, integrated software applications in the Computer-Aided Management of Emergency Operations (CAMEO) suite. While the other two software applications: Cameo is primarily a database application and Marplot is the mapping application. ALOHA is used primarily for the evaluations of the consequences of atmospheric releases of chemical species. In addition to safety analysis applications in the Department of Energy (DOE) Complex, ALOHA is applied

338

Alaska | Building Energy Codes Program  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Site Map Printable Version Development Adoption Compliance Regulations Resource Center Alaska Last updated on 2013-12-10 Commercial Residential Code Change Current Code None Statewide Amendments / Additional State Code Information N/A Approved Compliance Tools State Specific Research Impacts of ASHRAE 90.1-2007 for Commercial Buildings in the State of Alaska (BECP Report, Sept. 2009) Approximate Energy Efficiency Effective Date Code Enforcement DOE Determination ASHRAE Standard 90.1-2007: No ASHRAE Standard 90.1-2010: No Energy cost savings for Alaska resulting from the state updating its commercial and residential building energy codes in accordance with federal law are significant, estimated to be on the order of nearly $50 million annually by 2030. Alaska DOE Determination Letter, May 31, 2013

339

Massachusetts | Building Energy Codes Program  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Massachusetts Massachusetts Last updated on 2013-11-04 Current News The BBRS voted to adopt the 2012 IECC and ASHRAE 90.1-2010 on July 9, 2013. They will be phased in over an extended concurrency period, and is expected to become the sole effective baseline energy code on July 1, 2014. Commercial Residential Code Change Current Code 2009 IECC with Amendments Amendments / Additional State Code Information 13.0 Energy Conservation- 2009 IECC Approved Compliance Tools State Specific Research Impacts of ASHRAE 90.1-2007 for Commercial Buildings in the State of Massachusetts (BECP Report, Sept. 2009) Approximate Energy Efficiency Equivalent to 2009 IECC Effective Date 07/01/2010 Adoption Date 01/01/2010 Code Enforcement Mandatory DOE Determination ASHRAE 90.1-2007: Yes ASHRAE 90.1-2010: Yes

340

Virginia | Building Energy Codes Program  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Virginia Virginia Last updated on 2013-11-05 Current News BHCD/DHCD workgroups are currently meeting over the next 12+ months for the 2012 USBC/IECC regulatory process, with an anticipated effective date in early 2014. Commercial Residential Code Change Current Code 2009 IECC Amendments / Additional State Code Information Virginia's current code is the 2009 IECC with reference to ASHRAE 90.1-2007. Approved Compliance Tools Can use COMcheck State Specific Research Impacts of ASHRAE 90.1-2007 for Commercial Buildings in the State of Virginia (BECP Report, Sept. 2009) Approximate Energy Efficiency Equivalent to 2009 IECC Effective Date 03/01/2011 Adoption Date 07/26/2010 Code Enforcement Mandatory DOE Determination ASHRAE 90.1-2007: Yes ASHRAE 90.1-2010: No Virginia DOE Determination Letter, May 31, 2013

Note: This page contains sample records for the topic "generation thermochemical code" from the National Library of EnergyBeta (NLEBeta).
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341

Magnetocumulative generator  

DOE Patents [OSTI]

An improved magnetocumulative generator is described that is useful for producing magnetic fields of very high energy content over large spatial volumes. The polar directed pleated magnetocumulative generator has a housing providing a housing chamber with an electrically conducting surface. The chamber forms a coaxial system having a small radius portion and a large radius portion. When a magnetic field is injected into the chamber, from an external source, most of the magnetic flux associated therewith positions itself in the small radius portion. The propagation of an explosive detonation through high-explosive layers disposed adjacent to the housing causes a phased closure of the chamber which sweeps most of the magnetic flux into the large radius portion of the coaxial system. The energy content of the magnetic field is greatly increased by flux stretching as well as by flux compression. The energy enhanced magnetic field is utilized within the housing chamber itself.

Pettibone, J.S.; Wheeler, P.C.

1981-06-08T23:59:59.000Z

342

Monthly Generation System Peak (pbl/generation)  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Generation > Generation Hydro Power Wind Power Monthly GSP BPA White Book Dry Year Tools Firstgov Monthly Generation System Peak (GSP) This site is no longer maintained. Page last...

343

Photon generator  

DOE Patents [OSTI]

A photon generator includes an electron gun for emitting an electron beam, a laser for emitting a laser beam, and an interaction ring wherein the laser beam repetitively collides with the electron beam for emitting a high energy photon beam therefrom in the exemplary form of x-rays. The interaction ring is a closed loop, sized and configured for circulating the electron beam with a period substantially equal to the period of the laser beam pulses for effecting repetitive collisions.

Srinivasan-Rao, Triveni (Shoreham, NY)

2002-01-01T23:59:59.000Z

344

Building Technologies Office: Advancing Building Energy Codes  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Building Energy Codes Building Energy Codes Printable Version Share this resource Send a link to Building Technologies Office: Advancing Building Energy Codes to someone by E-mail Share Building Technologies Office: Advancing Building Energy Codes on Facebook Tweet about Building Technologies Office: Advancing Building Energy Codes on Twitter Bookmark Building Technologies Office: Advancing Building Energy Codes on Google Bookmark Building Technologies Office: Advancing Building Energy Codes on Delicious Rank Building Technologies Office: Advancing Building Energy Codes on Digg Find More places to share Building Technologies Office: Advancing Building Energy Codes on AddThis.com... Popular Links Success Stories Previous Next Lighten Energy Loads with System Design. Warming Up to Pump Heat.

345

Building Energy Code | Open Energy Information  

Open Energy Info (EERE)

Code Code Jump to: navigation, search Building energy codes adopted by states (and some local governments) require commercial and/or residential construction to adhere to certain energy standards. While some governmental bodies have developed their own building energy codes, many use existing codes, such as the International Energy Conservation Code (IECC), developed and published by the International Code Council (ICC); or ASHRAE 90.1, developed by the American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE). A few local building energy codes require certain commercial facilities to meet green building standards. [1] Building Energy Code Incentives CSV (rows 1 - 85) Incentive Incentive Type Place Applicable Sector Eligible Technologies Active

346

Business Models for Code Compliance | Building Energy Codes Program  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Compliance Compliance Site Map Printable Version Development Adoption Compliance Basics Compliance Evaluation Software & Web Tools Regulations Resource Center Business Models for Code Compliance The U.S. Department of Energy is coordinating strategies and activities with companies, individuals, and government entities to demonstrate, quantify, and monetize energy code compliance and coordinate deployment at the local, state, and regional levels. Consumer Assurance through Code Compliance Energy efficiency measures in the buildings sector, if properly realized and captured, provide a tremendous opportunity to reduce energy consumption and expenditures. Yet currently there is a lack of assurance that buildings as designed realize the levels of energy efficiency established in the

347

San Francisco Building Code Amendments to the  

E-Print Network [OSTI]

occupancy types regulated by the San Francisco Building Code, including: A, B, E, F, H, I, L, M, R, S, and U1 2010 San Francisco Building Code Amendments to the 2010 California Green Building Standards Code (Omitting amendments to 2010 California Building Code and 2010 California Residential Code which do

348

About Building Energy Codes | Building Energy Codes Program  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Compliance Compliance Regulations Resource Center About Building Energy Codes U.S. Energy Consumption by Sector (2011) Source: U.S. Energy Information Administration, Annual Energy Review According to the U.S. Energy Information Administration's Electric Power Annual, U.S. residential and commercial buildings account for approximately 41% of all energy consumption and 72% of electricity usage. Building energy codes increase energy efficiency in buildings, resulting in significant cost savings in both the private and public sectors of the U.S. economy. Efficient buildings reduce power demand and have less of an environmental impact. The Purpose of Building Energy Codes Energy codes and standards set minimum efficiency requirements for new and renovated buildings, assuring reductions in energy use and emissions over

349

Generation Technologies  

E-Print Network [OSTI]

Many local governments are using green power in their facilities and providing assistance to local businesses and residents to do the same. Green power is a subset of renewable energy that is produced with no GHG emissions, typically from solar, wind, geothermal, biogas, biomass, or low-impact small hydroelectric sources, includes three types of products: utility products (i.e., green power purchased from the utility through the electricity grid), renewable energy certificates (RECs), and on-site generation. Opportunities to purchase these products are increasing significantly, with annual green power market growth rates

Green Power

2005-01-01T23:59:59.000Z

350

Utilization of aqueous product generated by hydrothermal carbonization of waste biomass.  

E-Print Network [OSTI]

??Hydrothermal carbonization (HTC) is a thermochemical treatment process that allows for the conversion of relatively dilute biomass slurries into value added products which are hydrochar… (more)

Vozhdayev, Georgiy Vladimirovich

2014-01-01T23:59:59.000Z

351

Building Energy Codes Survey Tool  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Codes Program Codes Program Building Energy Codes Survey Tool The following surveys are available: No available surveys Please contact ( webmaster@energycode.pnl.gov ) for further assistance. English Albanian Arabic Basque Belarusian Bosnian Bulgarian Catalan Chinese (Simplified) Chinese (Traditional; Hong Kong) Chinese (Traditional; Taiwan) Croatian Czech Danish Dutch Dutch Informal English Estonian Finnish French Galician German German informal Greek Hebrew Hindi Hungarian Icelandic Indonesian Irish Italian Italian (formal) Japanese Korean Latvian Lithuanian Macedonian Malay Maltese Norwegian (Bokmal) Norwegian (Nynorsk) Persian Polish Portuguese Portuguese (Brazilian) Punjabi Romanian Russian Serbian Sinhala Slovak Slovenian Spanish Spanish (Mexico) Swedish Thai Turkish Urdu Vietnamese Welsh

352

DOE Patents Database - Widget Code  

Office of Scientific and Technical Information (OSTI)

Widget Inclusion Code Widget Inclusion Code Download and install the DOepatents widget by copying and pasting its HTML inclusion code.