159 Matching Results

Search Results

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

Acoustic agglomeration of power plant fly ash. Final report

Description: The work has shown that acoustic agglomeration at practical acoustic intensities and frequencies is technically and most likely economically viable. The following studies were performed with the listed results: The physics of acoustic agglomeration is complex particularly at the needed high acoustic intensities in the range of 150 to 160 dB and frequencies in the 2500 Hz range. The analytical model which we developed, although not including nonlinear acoustic efforts, agreed with the trends obs… more
Date: January 1, 1982
Creator: Reethof, G. & McDaniel, O.H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Enhancing the use of coals by gas reburning-sorbent injection

Description: The objective of this project is to evaluate and demonstrate a cost effective emission control technology for acid rain precursors, oxides of nitrogen (NO{sub x}) and sulfur (SO{sub x}), on three coal fired utility boilers in Illinois. The units selected are representative of pre-NSPS design practices; tangential, wall, and cyclone fired. The specific objectives are to demonstrate reductions of 60 percent in NO{sub x} and 50 percent in SO{sub x} emissions, by a combination of two developed tech… more
Date: December 22, 1988
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

LIMB Demonstration Project Extension

Description: The basic goal of the Limestone Injection Multistage Burner (LIMB) demonstration is to extend LIMB technology development to a full- scale application on a representative wall-fired utility boiler. The successful retrofit of LIMB to an existing boiler is expected to demonstrate that (a) reductions of 50 percent or greater in SO{sub x} and NO{sub x} emissions can be achieved at a fraction of the cost of add-on FGD systems, (b) boiler reliability, operability, and steam production can be maintain… more
Date: March 15, 1989
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Proof of concept testing of an integrated dry injection system for SO sub x /NO sub x control

Description: The objectives of the subscale test program were designed to provide sorbent and additive selection guidance, and, in so doing, supply answers to the questions posed in the preceding section. The objectives are: Identify the best commercial hydrate sorbent and the best enhanced hydrate sorbent from a list of nine types, based upon S0{sub 2} removal at Ca/S=2. Determine the relative effectiveness of sodium sesquicarbonate versus sodium bicarbonate for S0{sub 2} and NO{sub x} control over the tem… more
Date: January 1, 1989
Creator: Helfritch, D.J.; Bortz, S.J. (Research-Cottrell, Inc., Somerville, NJ (United States). Environmental Services and Technologies Div.) & Beittel, R. (Riley Stoker Corp., Worcester, MA (United States))
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Modeling of Integrated Environmental Control Systems for Coal-Fired Power Plants Quarterly Report: January-March 1989

Description: This is the sixth quarterly report of DOE Contract No. DE-AC22- 87PC79863, entitled Modeling of Integrated Environmental Control Systems for Coal-Fired Power Plants.'' This report summarizes accomplishments during the period January 1, 1989 to March 31, 1989. Efforts this past quarter focused primarily on the preparation of a computer User's Guide for the Integrated Environmental Control Model (IECM). Drafts of the first two chapters are now complete. These chapters constitute the bulk of this … more
Date: April 1, 1989
Creator: Rubin, E. S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Modeling of Integrated Environmental Control Systems for Coal-Fired Power Plants Quarterly Report: June-September 1989

Description: The general goal of this research project is to enhance, and transfer to DOE, a new computer simulation model for analyzing the performance and cost of environmental control systems for coal-fired power plants. Systems utilizing pre-combustion, combustion, or post-combustion control methods, individually or in combination, may be considered. A unique capability of this model is the probabilistic representation of uncertainty in model input parameters. This stochastic simulation capability allow… more
Date: October 1, 1989
Creator: Rubin, E. S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Control of indoor radon and radon progeny concentrations

Description: There are three general categories of techniques for the control of radon and radon progeny concentrations in indoor air - restriction of radon entry, reduction of indoor radon concentrations by ventilation or air cleaning, and removal of airborne radon progeny. The predominant radon entry process in most residences appears to be pressure driven flow of soil gas through cracks or other openings in the basement, slab, or subfloor. Sealing these openings or ventilation of the subslab or subfloor … more
Date: May 1, 1985
Creator: Sextro, R.G.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Costs to reduce sulfur dioxide emissions

Description: Central to the resolution of the acid rain issue are debates about the costs and benefits of controlling man-made emissions of chemicals that may cause acid rain. In this briefing, the position of those who are calling for immediate action and implicating coal-fired powerplants as the cause of the problem is examined. The costs of controlling sulfur dioxide emissions using alternative control methods available today are presented. No attempt is made to calculate the benefits of reducing these e… more
Date: March 1, 1982
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Acoustic agglomeration of power-plant fly ash. A comprehensive semi-annual progress report

Description: Results obtained during the reporting period are presented. The agglomeration of submicron fly ash particles has been studied as a function of sound pressure level, sound frequency, loading, and exposure time. A second generation model of the agglomeration process is being developed. A high-frequency, high-intensity variable speed siren delivering at least 600 W at frequencies up to 4000 Hz has been developed and tested. Details on the design and operation are presented. The agglomeration chamb… more
Date: February 1, 1980
Creator: Reethof, G.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

LIMB Demonstration Project Extension

Description: The basic goal of the Limestone Injection Multistage Burner (LIMB) demonstration is to extend LIMB technology development to a full- scale application on a representative wall-fired utility boiler. The successful retrofit of LIMB to an existing boiler is expected to demonstrate that (a) reductions of 50 percent or greater in SO{sub x} and NO{sub x} emissions can be achieved at a fraction of the cost of add-on FGD systems, (b) boiler reliability, operability, and steam production can be maintain… more
Date: December 15, 1988
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

LIMB Demonstration Project Extension

Description: The basic goal of the Limestone Injection Multistage Burner (LIMB) demonstration is to extend LIMB technology development to a full- scale application on a representative wall-fired utility boiler. The successful retrofit of LIMB to an existing boiler is expected to demonstrate that (a) reductions of 50 percent or greater in SO{sub x} and NO{sub x} emissions can be achieved at a fraction of the cost of add-on FGD systems, (b) boiler reliability, operability, and steam production can be maintain… more
Date: June 15, 1989
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

CaO interaction in the staged combustion of coal

Description: The LIMB (limestone injection multi-stage burner) process offers special potential for reducing NO/sub x/ and SO/sub x/ by at least 50 percent in coal combustion. This is to be accomplished by adding limestone with fuel and/or air in a low NO/sub x/ burner. This program has been directed to defining the chemistry and kinetics necessary to optimize sulfur capture in LIMB combustion. More specifically, this program has attempted to clarify the role of calcium sulfide in LIMB chemistry. When limes… more
Date: December 19, 1983
Creator: Levy, Arthur; Merryman, Earl L. & Rising, Bruce W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Co-combustion of refuse derived fuel and coal in a cyclone furnace at the Baltimore Gas and Electric Company, C. P. Crane Station

Description: A co-combustion demonstration burn of coal and fluff refuse-derived fuel (RDF) was conducted by Teledyne National and Baltimore Gas and Electric Company. This utility has two B and W cyclone furnaces capable of generating 400 MW. The facility is under a prohibition order to convert from No. 6 oil to coal; as a result, it was desirable to demonstrate that RDF, which has a low sulfur content, can be burned in combination with coals containing up to 2% sulfur, thus reducing overall sulfur emission… more
Date: March 1, 1982
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Engineering systems analysis of pressurized fluidized-bed-combustion power systems

Description: This effort was conducted to provde supporting data for the research and development program on pressurized fluidized bed combustor (PFBC) systems being continued under the auspices of the Office of Coal Utilization of DOE. This report deals with the first phase of the effort, designated Task 1, which was scoped to be a somewhat broad review of PFBC technology and an analysis to determine its potential and sensitivity to key development needs. Background information pertaining to the applicatio… more
Date: April 1, 1982
Creator: Graves, R. L.; Griffin, F. P. & Lackey, M. E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Combustion of ultrafine coal/water mixtures and their application in gas turbines: Final report

Description: The feasibility of using coal-water fuels (CWF) in gas turbine combustors has been demonstrated in recent pilot plant experiments. The demands of burning coal-water fuels with high flame stability, complete combustion, low NO/sub x/ emission and a resulting fly ash particle size that will not erode turbine blades represent a significant challenge to combustion scientists and engineers. The satisfactory solution of these problems requires that the variation of the structure of CWF flames, i.e., … more
Date: October 1, 1987
Creator: Toqan, M.A.; Srinivasachar, S.; Staudt, J.; Varela, F. & Beer, J.M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

State-of-the-art hydrogen sulfide control for geothermal energy systems: 1979

Description: Existing state-of-the-art technologies for removal of hydrogen sulfide are discussed along with a comparative assessment of their efficiencies, reliabilities and costs. Other related topics include the characteristics of vapor-dominated and liquid-dominated resources, energy conversion systems, and the sources of hydrogen sulfide emissions. It is indicated that upstream control technologies are preferred over downsteam technologies primarily because upstream removal of hydrogen sulfide inherent… more
Date: March 1, 1980
Creator: Stephens, F.B.; Hill, J.H. & Phelps, P.L. Jr.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Clean Air and Energy: From Conflict to Reconciliation. [Cost Benefit Analysis]

Description: Unconstrained energy resource development in the Rocky Mountain west is likely to threaten the environment and the health and well-being of the people. Impacts may be associated with visibility degradation, toxic concentrations of gases, and deposition of acidic or toxic substances. Because the possible benefits of energy development in the region are very large, there is great concern that constraints imposed by air quality regulation may preclude the use of important resources or make unduly … more
Date: January 1, 1982
Creator: Kolstad, C. D.; Schulze, W. D. & Williams, M. D.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Modeling of Integrated Environmental Control Systems for Coal-Fired Power Plants Quarterly Report: April-June 1988

Description: This is the third quarterly report of DOE Contract No. DE-AC22- 87PC79864, entitled Modeling of Integrated Environmental Control Systems for Coal-Fired Power Plants.'' This report summarizes accomplishments during the period April 1, 1988 to June 30, 1988. Our efforts during the last quarter focused on, (1) completion of a sulfuric acid plant model (used in conjunction with by-product recovery processes for SO{sub 2}/NO{sub x} removal) and, (2) an update the NOXSO process model. Other accomplis… more
Date: June 1, 1988
Creator: Rubin, E. S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Pressurized fluidized-bed combustion technology exchange workshop

Description: The pressurized fluidized-bed combustion technology exchange workshop was held June 5 and 6, 1979, at The Meadowlands Hilton Hotel, Secaucus, New Jersey. Eleven papers have been entered individually into EDB and ERA. The papers include reviews of the US DOE and EPRI programs in this area and papers by Swedish, West German, British and American organizations. The British papers concern the joint program of the USA, UK and FRG at Leatherhead. The key factor in several papers is the use of fluidiz… more
Date: April 1, 1980
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Pressurized fluidized-bed combustion

Description: The US DOE pressurized fluidized bed combustion (PFBC) research and development program is designed to develop the technology and data base required for the successful commercialization of the PFBC concept. A cooperative program with the US, West Germany, and the UK has resulted in the construction of the 25 MWe IEA-Grimethorpe combined-cycle pilot plant in England which will be tested in 1981. A 13 MWe coal-fired gas turbine (air cycle) at Curtis-Wright has been designed and construction sched… more
Date: October 1, 1980
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

An evaluation of a pre-charging pulse-jet filter for small combustor particulate control

Description: The objective of this test program is the performance and economic evaluation of a pre charged-pulse jet filter as the principal particulate control device for a commercial or industrial scale coal fired combustor. Performance factors that will be considered are the effects of particle charge, air/cloth ratio, fabric types, percent humidity and inlet particulate loading on fine particle collection efficiency, and pressure drop. Economic factors that will be considered are capital costs, energy … more
Date: December 1, 1989
Creator: Helfritch, D.J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Environmental Control Technology for Atmospheric Carbon Dioxide. Final Report

Description: The impact of fossil fuel use in the US on worldwide CO/sub 2/ emissions and the impact of increased coal utilization on CO/sub 2/ emission rates are assessed. The aspects of CO/sub 2/ control are discussed as well as the available CO/sub 2/ removal sites. The primary factor affecting the practicability of a CO/sub 2/ control system is its energy requirements. Of the three potential CO/sub 2/ control points, removal from the stacks of fossil fuel power plants appears to require the least amount… more
Date: May 1, 1980
Creator: Albanese, A. S. & Steinberg, M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Analysis of barium hydroxide and calcium hydroxide slurry carbonation reactors

Description: The removal of CO/sub 2/ from air was investigated by using a continuous-agitated-slurry carbonation reactor containing either barium hydroxide (Ba(OH)/sub 2/) or calcium hydroxide (Ca(OH)/sub 2/). Such a process would be applied to scrub /sup 14/CO/sub 2/ from stack gases at nuclear-fuel reprocessing plants. Decontamination factors were characterized for reactor conditions which could alter hydrodynamic behavior. An attempt was made to characterize reactor performance with models assuming both… more
Date: May 1, 1980
Creator: Patch, K.D.; Hart, R.P. & Schumacher, W.A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Modeling of Integrated Environmental Control Systems for Coal-Fired Power Plants Quarterly Report: November-December 1987

Description: This is the first quarterly report of DOE/PETC Contract No. DE-AC22-87PC79864, entitled, Modeling of Integrated Environmental Control Systems for Coal-Fired Power Plants.'' Refining, creating, and documenting of computer models concerning coal/flue gas cleaning and desulfurization are discussed. (VC)
Date: January 1, 1988
Creator: Rubin, E. S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
Back to Top of Screen