1,885 Matching Results

Search Results

Advanced search parameters have been applied.
in subjects: "Steam"  
Results: 1 - 24 next
open access

Response of a glass melter to steam explosion

Description: As part of the safety assessment in the design of the glass melter for large-scale immobilization of high-level radioactive wastes, structural considerations of the containment shell include its dynamic responses to abnormal loading conditions such as that caused by a steam explosion. The postulated steam explosion, conservatively given an energy content equivalent to 13 pounds of TNT, is capable of exerting sudden pressures greater than 300 psi but less than 410 psi on the melter wall. By use … more
Date: January 1, 1984
Creator: Yau, W. F. & Durant, W. S.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Catalytic steam gasification of bagasse for the production of methanol

Description: Pacific Northwest Laboratory (PNL) tested the catalytic gasification of bagasse for the production of methanol synthesis gas. The process uses steam, indirect heat, and a catalyst to produce synthesis gas in one step in fluidized bed gasifier. Both laboratory and process development scale (nominal 1 ton/day) gasifiers were used to test two different catalyst systems: (1) supported nickel catalysts and (2) alkali carbonates doped on the bagasse. This paper presents the results of laboratory and … more
Date: December 1, 1983
Creator: Baker, E.G. & Brown, M.D.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Oxidation/gasification of carbon residue on retorted oil shale. Final report

Description: Studies of the oxidation and gasification of oil shale char were extended to an investigation of the effects of mineral catalysis. Six shales with differing mineral compositions were studied, including samples from the saline zone in the Western Colorado and from the Antrim shales of Michigan. Oxidation kinetics data, corrected for mass transfer effects, were compared for all six samples. A high assay shale from Utah and a sample from the saline zone were found to have the highest oxidation rat… more
Date: January 16, 1984
Creator: Thomson, W. J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Development of BEACON technology. Quarterly report, April-June 1982

Description: The BEACON process involves the catalytic deposition of a highly reactive form of carbon from a gas stream which contains carbon monoxide. The carbon-depleted gas is combusted with air to produce power, and the carbon is reacted with steam to produce methane or hydrogen. Experiments were continued this quarter with the objective of improving the carbon deposition efficiency using a Paraho retort off-gas mixture. Analysis has shown that the use of the Paraho off-gas to make hydrogen would be att… more
Date: March 1, 1983
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Low-Btu coal-gasification-process design report for Combustion Engineering/Gulf States Utilities coal-gasification demonstration plant. [Natural gas or No. 2 fuel oil to natural gas or No. 2 fuel oil or low Btu gas]

Description: This report describes a coal gasification demonstration plant that was designed to retrofit an existing steam boiler. The design uses Combustion Engineering's air blown, atmospheric pressure, entrained flow coal gasification process to produce low-Btu gas and steam for Gulf States Utilities Nelson No. 3 boiler which is rated at a nominal 150 MW of electrical power. Following the retrofit, the boiler, originally designed to fire natural gas or No. 2 oil, will be able to achieve full load po… more
Date: June 1, 1982
Creator: Andrus, H E; Rebula, E; Thibeault, P R & Koucky, R W
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Alternate materials of construction for geothermal applications. Progress report No. 14, July--September 1977

Description: A program to determine if non-metallic materials such as polymers, concrete polymer composites, and refractory cements can be utilized as materials of construction in geothermal processes is in progress. To date, several high temperature polymer concrete systems have been formulated, laboratory and field tests performed in brine, flashing brine, and steam at temperatures up to 260/sup 0/C (500/sup 0/F), and economic studies started. Laboratory data for exposure times > 2 years are available. Re… more
Date: September 1, 1977
Creator: Kukacka, L. E.; Fontana, J.; Zeldin, A.; Sugama, T.; Horn, W.; Carciello, N. et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Optimization of steam explosion pretreatment. Final report

Description: Different operating conditions are required to optimize the yield from each of the various fractions in the substrate. Xylose recovery is maximized at short cooking times whereas maximum lignin recovery requires much longer cooking times. Peak glucose yield and rumen digestibility occur at intermediate times. If process conditions are set for maximum glucose yield we have achieved a yield of 68% of the theoretical, based on an average of a dozen substrates tested. Individual results ranged from… more
Date: April 1, 1980
Creator: Foody, P.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Central receiver solar thermal power system, Phase 1. CDRL Item 2. Pilot plant preliminary design report. Volume IV. Receiver subsystem. [10-MW Pilot Plant and 100-MW Commercial Plant]

Description: The conception, design, and testing of the receiver subsystem proposed by the McDonnell Douglas/Rocketdyne Receiver team for the DOE 10-MW Pilot Plant and the 100-MW Commercial Plant are described. The receiver subsystem consists of the receiver unit, the tower on which the receiver unit is mounted above the collector field, and the supporting control and instrumentation equipment. The plans for implementation of the Pilot Plant are given including the anticipated schedule and production plan (… more
Date: November 1, 1977
Creator: Hallet, Jr., R. W. & Gervais, R. L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

A study of steady-state steam-water counterflow in porous media

Description: Vapor-liquid counterflow in porous media arises in processes such as heat pipes, oil recovery and geothermal systems. Previous studies analysed these phenomena in separate contexts. This paper presents a unified description from which previous models result as limiting cases. The analysis includes capillarity, heat conduction, and Kelvin effects. The importance of each term to various processes is examined. Significantly, it is found that the critical heat flux is not constant but increases wit… more
Date: February 1, 1990
Creator: Satik, C.; Parlar, M. & Yortsos, Y.C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Screening study on high temperature energy transport systems

Description: The purpose of the study described in this document is to identify the options for transporting thermal energy over long distances. The study deals specifically and exclusively with high temperature (> 400/sup 0/C(752/sup 0/F)) energy for industrial use. Energy transport is seen as a potential solution to: high unit cost of small coal and nuclear steam generators, and opposition to siting of coal or nuclear plants near populated areas. The study is of a preliminary nature but covers many option… more
Date: October 1, 1980
Creator: Graves, R.L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Georgetown University atmospheric fluidized bed boiler cogeneration system

Description: This report presents the results of one year of operation of the cogeneration system capability of the Georgetown University coal- fired, atmospheric fluidized-bed (AFB) boiler. The AFB was designed and installed under a separate contract with the US Department of Energy. The AFB project funded by DOE to demonstrate that high sulfur coal could be burned in an environmentally acceptable manner in a urban environment such as Georgetown. In addition, operational data from the unit would assist the… more
Date: August 1, 1991
Creator: Podbielski, V. & Shaff, D.P.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Development of BEACON technology. Quarterly report, October-December 1982

Description: The BEACON process involves the catalytic deposition of a highly reactive form of carbon from a gas stream which contains carbon monoxide. The carbon-depleted gas is combusted with air to produce power, and the carbon is reacted with steam to produce methane or hydrogen. During the quarter both SOHIO and TRW worked on catalysts which would suppress methane formation during steaming thus increasing the amount of hydrogen formed. At SOHIO a C77-K2 catalyst promoted with a Class II compound showed… more
Date: April 1, 1983
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

SNAP II POWER CONVERSION SYSTEM TOPICAL REPORT NO. 11, ORBITAL FORCE FIELD BOILING AND CONDENSING EXPERIMENT

Description: The characteristics of Rankine space power plants in the zero gravity aspect of the environment of space were lnvestigated. The expected effects of Rankine space power plants are described. Discussions of experimental techniques for studying these phenomena show that this information can be obtained rapidly and economically. Recommendations for a program to supplement SNAP II and slmllar Ranklne space power development efforts in this vital area are made, and consist of: the development and tes… more
Date: January 15, 1960
Creator: Grevstad, P.E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Dynamic Simulation of Multi-Pass Pressurized Water Nuclear Power Plants by Analog Computer Techniques

Description: A kinetic model of the primary loop of a multi-pass pressurized water reactor power plant is developed to evaluate, by analog computer techniques, the transient response characteristics under conditions of steam generator load and reactor control rod perturbations. Using the 2-pass 28 Mw(t) SM-2 reactor as a typical plant, transient behavior patterns are illustrated and examined for a variety of load inputs, variations in plant constants, and analog model simplifications. (auth)
Date: June 1, 1961
Creator: Brondel, J. O.
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries Government Documents Department
open access

Fundamental studies of catalytic gasification

Description: Studies of the catalytic steam gasification of carbon solids continued. In this project a considerable number of important findings have been made. Recently limited experimentation has been carried out on the production of C{sub 2} hydrocarbons from methane in the presence of Ca/K/Ni oxide catalysts and of oxygen, carbon and water. The main finding thus far has been that C{sub 2} yields of 10--13% can be obtained at about 600{degrees}C or 150{degrees} lower temperature than described in the lit… more
Date: June 1, 1991
Creator: Heinemann, H. & Smorjai, G.A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

LOFT three-beam densitometer data interpretation

Description: A calculation procedure has been devised to fit the best of several density distribution models, or a default model, to chordal average fluid density measurements from the LOFT gamma densitometer to obtain an estimate of the coolant density profile and the average density. The models used are homogeneous, continuous and discontinuous stratified, and continuous and discontinuous annular. The default model is a beam length weighted average for an estimate of the average density. A computer progra… more
Date: October 1, 1977
Creator: Lassahn, G. D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Tritium permeability of structural materials and surface effects on permeation rates

Description: Tritium management in any system always will include containment such that tritium release rates will be less than established limits and also will be as low as practical. The well known properties of hydrogen to permeate through most materials make the complete containment of tritium an impossible task. However, tritium release rates from a given system can be minimized by two primary efforts. First is the selection of a compatible containment material which frequently also will be the structu… more
Date: January 1, 1980
Creator: Bell, J T; Redman, J D & Bittner, H F
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Solar production of industrial process steam for the Lone Star Brewery. Final report

Description: This report outlines the detailed design and system analysis of a solar industrial process steam system for the Lone Star Brewery. The industrial plant has an average natural gas usage of 12.7 MMcf per month. The majority of this energy goes to producing process steam of 125 psi and 353/sup 0/F at about 50,000 lb/h, with this load dropping to about 6000 lb/h on the weekends. The maximum steam production of the solar energy system is about 1700 lb/h. The climatic conditions at the industrial sit… more
Date: June 29, 1979
Creator: Deffenbaugh, D. M.; Watkins, P. V.; Hugg, S. B.; Kulesz, J. J.; Decker, H. E. & Powell, R. C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Methane or methanol via catalytic gasification of biomass

Description: Methane and methanol synthesis gas can be produced by steam gasification of biomass in the presence of appropriate catalysts. A 5 cm diameter reactor has been used to determine the desired catalysts and operating temperature. A process development unit (PDU) has demonstrated steam gasification of biomass with catalysts at rates up to 35 kg per hour. Methane yields of 0.28 nm/sup 3/ per kg of dry wood were produced in the small laboratory reactor. Further methanation of the product gas mixture c… more
Date: March 1, 1980
Creator: Mitchell, D. H.; Mudge, L. K.; Robertus, R. J.; Weber, S. L. & Sealock, L. J. Jr.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

BOILING NUCLEAR SUPERHEATER (BONUS) POWER STATION. Supplementary Study. Extrapolation to Large Central Station Integral Nuclear Superheat Plant

Description: An evaluation was made of the maximum size plant for which the BONUS reactor plant could serve as a realistic prototype and the design changes required to increase the size and characteristics for the present BONUS design such that it could serve as a realistic prototype for the largest feasible integral-superheat reactor power plant. (M.C.G.)
Date: October 31, 1962
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
Back to Top of Screen