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Innovative Clean Coal Technology (ICCT): 500 MW demonstration of advanced wall-fired combustion techniques for the reduction of nitrogen oxide (NO sub x ) emissions from coal-fired boilers

Description: This quarterly report discusses the technical progress of an Innovative Clean Coal Technology (ICCT) demonstration of advanced wall-fired combustion techniques for the reduction of nitrogen oxide (NO{sub x}) emissions from coal-fired boilers. The project is being conducted at Georgia Power Company's Plant Hammond Unit 4 located near Rome, Georgia. The primary goal of this project is the characterization of the low NO{sub x} combustion equipment through the collection and analysis of long-term e… more
Date: April 21, 1992
Partner: UNT Libraries Government Documents Department
open access

The impact of changing land use, nitrate deposition and CO sub 2 fertilization on soil carbon storage

Description: This research strives to assess the impact of changing land use, nitrate deposition and CO{sub 2} fertilization on soil carbon storage. Our motivation is that this reservoir is the most likely candidate for the so-called missing carbon sink. We are working on several aspects of this problem by measuring carbon content, nitrogen content and radiocarbon ratios in paired soil samples from neighboring sites, to determine the impact of land use on soil carbon inventories and turnover times. We are a… more
Date: May 21, 1992
Creator: Harrison, K. & Broecker, W.
Partner: UNT Libraries Government Documents Department
open access

MOLE: A new high-energy gamma-ray diagnostic

Description: Continued interest in high-energy {gamma} rays associated with fusion reactions has motivated an ongoing search for simple, effective measurement techniques. Past experiments have measured 16.7-MeV {gamma} rays with Compton-magnetic spectrometers. Some measurements have been performed with threshold Cherenkov detectors with enhanced sensitivity to high-energy {gamma} rays. The Compton spectrometers work quite well, but they require extensive calibrations and tend to be expensive and cumbersome.… more
Date: January 21, 1992
Creator: Moran, M. J. & Chang, B.
Partner: UNT Libraries Government Documents Department
open access

Configurational diffusion of asphaltenes in fresh and aged catalyst extrudates

Description: The objective of this research is to determine the relationship between the size and shape of coal and petroleum macromolecules and their diffusion rates i.e., effective diffusivities, in catalyst pore structures. That is, how do the effective intrapore diffusivities depend on molecule configuration and pore geometry.
Date: January 21, 1992
Creator: Guin, J. A. & Tarrer, A. R.
Partner: UNT Libraries Government Documents Department
open access

Guidebook for Farmstead Demand-Side Management (DSM) program design

Description: The acceptance and growth of Demand-Side Management (DSM) continues to increase in the US. According to latest estimates, total expenditures on electric utility DSM programs now exceed $1.2 billion annually, with these investments ranging from 1 to 5 percent of a utility's gross revenues. In addition, due to increasing environmental concerns and the high cost of new capacity, these expenditure levels are expected to increase. While the vast majority of these DSM programs are directed at the mor… more
Date: February 21, 1992
Creator: Rose, M. & Camera, R.K.
Partner: UNT Libraries Government Documents Department
open access

Chemical interactions in multimetal/zeolite catalysts

Description: Research is proposed on two groups of zeolite based catalysts that contain two transition elements. In one group both metals are fully reduced, in the other group one element is left as a positive ion; it can act as a chemical anchor'', or as a catalyst promoter for the reduced metal. The objective is to explore the potential of such materials for designing superior catalysts for synthesis and conversion of hydrocarbons and other energy carriers. ENDOR, EXAFS, CO-FTIR and TPD will be used to id… more
Date: December 21, 1992
Creator: Sachtler, W.M.H.
Partner: UNT Libraries Government Documents Department
open access

Carbon dioxide, climate and the deep ocean circulation: Carbon chemistry model

Description: The objective of this study was to investigate the role of oceanic carbon chemistry in modulating the atmospheric levels of CO[sub 2]. It is well known that the oceans are the primary sink of the excess carbon pumped into the atmosphere since the beginning of the industrial period. The suspended particulate and the dissolved organic matters in the deep ocean play important roles as carriers of carbon and other elements critical to the fate of CO[sub 2]. In addition, the suspended particulate ma… more
Date: September 21, 1992
Creator: Menawat, A.S.
Partner: UNT Libraries Government Documents Department
open access

Innovative Coke Oven Gas Cleaning System for Retrofit Applications Quarterly Report: July-September 1991

Description: The EMP consists of a Compliance Monitoring Sampling Program and a Supplemental monitoring Sampling Program. The Compliance Monitoring Sampling Program will be conducted during a summer and a winter Baseline periods during the Pre-Construction/Construction phases of the Project and during a summer and a winter period following the successful Startup and Operational phase of the completed Project. compliance monitoring consist of conducting all the sampling and observation programs associated wi… more
Date: September 21, 1992
Partner: UNT Libraries Government Documents Department
open access

Development of a Coal Quality Expert

Description: This is the tenth Technical Progress Report, describing work performed under DOE Contract No. DE-FC22-9OPC89663. The work falls under DOE's Clean Coal Technology Program category of Advanced Coal Cleaning.'' The 51-month project will provide the utility industry with a PC expert system to confidently and inexpensively evaluate the potential for coal cleaning, blending, and switching options to reduce emissionswhile producing lowest cost electricity. Specifically, this project will: (1)Enhance t… more
Date: December 21, 1992
Partner: UNT Libraries Government Documents Department
open access

Materials performance in prototype Thermal Cycling Absorption Process (TCAP) columns

Description: Two prototype Thermal Cycling Absorption Process (TCAP) columns have been metallurgically examined after retirement, to determine the causes of failure and to evaluate the performance of the column container materials in this application. Leaking of the fluid heating and cooling subsystems caused retirement of both TCAP columns, not leaking of the main hydrogen-containing column. The aluminum block design TCAP column (ABL block TCAP) used in the Advanced Hydride Laboratory, Building 773-A, fail… more
Date: November 21, 1992
Creator: Clark, E.A.
Partner: UNT Libraries Government Documents Department
open access

Materials compatibility of hydride storage materials with austenitic stainless steels

Description: This task evaluated the materials compatibility of LaNi[sub 5-x]Al[sub x] (x= 0.3, 0.75) hydrides and palladium coated kieselguhr with austenitic stainless steel in hydrogen and tritium process environments. Based on observations of retired prototype hydride storage beds and materials exposure testing samples designed for this study, no materials compatibility problem was indicated. Scanning electron microscopy observations of features on stainless steel surfaces after exposure to hydrides are … more
Date: September 21, 1992
Creator: Clark, E.A.
Partner: UNT Libraries Government Documents Department
open access

Configurational diffusion of asphaltenes in fresh and aged catalyst extrudates. Quarterly progress report, September 20, 1991--December 20, 1991

Description: The objective of this research is to determine the relationship between the size and shape of coal and petroleum macromolecules and their diffusion rates i.e., effective diffusivities, in catalyst pore structures. That is, how do the effective intrapore diffusivities depend on molecule configuration and pore geometry.
Date: January 21, 1992
Creator: Guin, J. A. & Tarrer, A. R.
Partner: UNT Libraries Government Documents Department
open access

Innovative Clean Coal Technology (ICCT): 500 MW demonstration of advanced wall-fired combustion techniques for the reduction of nitrogen oxide (NO{sub x}) emissions from coal-fired boilers. Technical progress report, fourth quarter 1991

Description: This quarterly report discusses the technical progress of an Innovative Clean Coal Technology (ICCT) demonstration of advanced wall-fired combustion techniques for the reduction of nitrogen oxide (NO{sub x}) emissions from coal-fired boilers. The project is being conducted at Georgia Power Company`s Plant Hammond Unit 4 located near Rome, Georgia. The primary goal of this project is the characterization of the low NO{sub x} combustion equipment through the collection and analysis of long-term e… more
Date: April 21, 1992
Partner: UNT Libraries Government Documents Department
open access

Hazardous metals in yellow items used in RCAs

Description: Yellow items used in Radiologically Controlled Areas (RCAs) that could contain hazardous metals were identified. X-ray fluorescence analyses indicated that thirty of the fifty-two items do contain hazardous metals. It is important to minimize the hazardous metals put into the wastes. The authors recommend that the specifications for all yellow items stocked in Stores be changed to specify that they contain no hazardous metals.
Date: April 21, 1992
Creator: Brown, K. F. & Rankin, W. N.
Partner: UNT Libraries Government Documents Department
open access

Full-Scale Demonstration Low-NO{sub x} Cell{trademark} Burner retrofit. Quarterly report No. 7, April 1, 1992--June 30, 1992

Description: The LNCB{trademark} project involves retrofitting the two-nozzle cell burners at Dayton Power & Light`s, 605 HWe J.M. Stuart Unit {number_sign}4 Boiler near Aberdeen, Ohio with LNCB{trademark} (a burner and intregal NOx port). Previous pilot-scale tests have shown such an arrangement to achieve 50% reduction in NOx emission levels. This full-scale project will determine the commercial applicability of this technology. Fabrication and installation of all materials for the burner inversion and im… more
Date: September 21, 1992
Partner: UNT Libraries Government Documents Department
open access

Testing the Superweak Theory of CP Violation in Neutral B Decays

Description: In order to rule out the superweak theory for CP violation, future experiments will try to find a difference between the CP-violating asymmetries in the decays B{sup 0} {yields} {psi} K{sub s} and B{sup 0} {yields} {pi}{sup +}{pi}{sup {minus}}. However, Winstein recently noted that, for some acceptable values of the CKM parameters, the standard model would give equal asymmetry parameters for these decays just as the superweak theory does. In this paper we show that, by considering both tree and… more
Date: January 21, 1992
Creator: Soares, J. M. & Wolfenstein, L.
Partner: UNT Libraries Government Documents Department
open access

Permeation rates for RTF metal hydride vessels

Description: Contamination rates have been estimated for the RTF nitrogen heating and cooling system (NH and CS) due to tritium permeation through the walls of metal hydride vessels. Tritium contamination of the NH and CS will be seen shortly after start-up of the RTF with the majority of it coming from the TCAP units. Contamination rates of the NH and CS are estimated to exceed 400 Ci/year after three years of operation and will elevate tritium concentrations in the NH and CS above 6 {times} 10{sup {minus}… more
Date: May 21, 1992
Creator: Klein, J. E.
Partner: UNT Libraries Government Documents Department
open access

Materials compatibility of hydride storage materials with austenitic stainless steels

Description: This task evaluated the materials compatibility of LaNi{sub 5-x}Al{sub x} (x= 0.3, 0.75) hydrides and palladium coated kieselguhr with austenitic stainless steel in hydrogen and tritium process environments. Based on observations of retired prototype hydride storage beds and materials exposure testing samples designed for this study, no materials compatibility problem was indicated. Scanning electron microscopy observations of features on stainless steel surfaces after exposure to hydrides are … more
Date: September 21, 1992
Creator: Clark, E. A.
Partner: UNT Libraries Government Documents Department
open access

Materials performance in prototype Thermal Cycling Absorption Process (TCAP) columns

Description: Two prototype Thermal Cycling Absorption Process (TCAP) columns have been metallurgically examined after retirement, to determine the causes of failure and to evaluate the performance of the column container materials in this application. Leaking of the fluid heating and cooling subsystems caused retirement of both TCAP columns, not leaking of the main hydrogen-containing column. The aluminum block design TCAP column (AHL block TCAP) used in the Advanced Hydride Laboratory, Building 773-A, fail… more
Date: November 21, 1992
Creator: Clark, E. A.
Partner: UNT Libraries Government Documents Department
open access

The Xu-Tec process of introducing normally solid materials into substrate surfaces

Description: Most of the initial alloying work has been with the interior of pipe segments. The source electrode, an Inconel 625 rod, was inserted into carbon steel pipe segment cathode. Alloy layers were deposited on the interior surfaces of these segments; maximum thickness (8 [mu]) was obtained for a potential difference of 200 V.
Date: December 21, 1992
Creator: Xu, Zhong.
Partner: UNT Libraries Government Documents Department
open access

Development of a Coal Quality Expert. Technical progress report No. 10, Final report

Description: This is the tenth Technical Progress Report, describing work performed under DOE Contract No. DE-FC22-9OPC89663. The work falls under DOE`s Clean Coal Technology Program category of ``Advanced Coal Cleaning.`` The 51-month project will provide the utility industry with a PC expert system to confidently and inexpensively evaluate the potential for coal cleaning, blending, and switching options to reduce emissions while producing lowest cost electricity. Specifically, this project will: (1)Enhanc… more
Date: December 21, 1992
Partner: UNT Libraries Government Documents Department
open access

The impact of changing land use, nitrate deposition and CO{sub 2} fertilization on soil carbon storage. Annual progress report

Description: This research strives to assess the impact of changing land use, nitrate deposition and CO{sub 2} fertilization on soil carbon storage. Our motivation is that this reservoir is the most likely candidate for the so-called missing carbon sink. We are working on several aspects of this problem by measuring carbon content, nitrogen content and radiocarbon ratios in paired soil samples from neighboring sites, to determine the impact of land use on soil carbon inventories and turnover times. We are a… more
Date: May 21, 1992
Creator: Harrison, K. & Broecker, W.
Partner: UNT Libraries Government Documents Department
open access

PulseSoar

Description: This paper is an introduction to the PulseSoar concept. PulseSoar is a hypervelocity airplane that uses existing airport facilities and current technologies to fly at the very edge of space. It will be shown that PulseSoar can fly between any two points on the globe in less than two hours with fuel efficiency exceeding current state of the art commercial airliners. In addition, it will be shown that PulseSoar avoids environmental issues concerning the ozone layer and sonic booms because of its … more
Date: July 21, 1992
Creator: Carter, P. & Peglow, S.
Partner: UNT Libraries Government Documents Department
open access

Full-Scale Demonstration Low-NO[sub x] Cell[trademark] Burner retrofit

Description: The LNCB[trademark] project involves retrofitting the two-nozzle cell burners at Dayton Power Light's, 605 HWe J.M. Stuart Unit [number sign]4 Boiler near Aberdeen, Ohio with LNCB[trademark] (a burner and intregal NOx port). Previous pilot-scale tests have shown such an arrangement to achieve 50% reduction in NOx emission levels. This full-scale project will determine the commercial applicability of this technology. Fabrication and installation of all materials for the burner inversion and impe… more
Date: September 21, 1992
Partner: UNT Libraries Government Documents Department
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