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Advanced Coal Conversion Process Demonstration (Project)

Description: This report contains a description of technical progress made on the Advanced Coal Conversion Process Demonstration Project (ACCP). The project is a US Department of Energy Innovative Clean Coal Technology Project. The cooperative agreement defining the project is between DOE and the Rosebud SynCoal Partnership RSCP. The RSCP is a partnership between Western Energy Company (WECo), a subsidiary of Entech, Montana Power's non-utility group, and NRG, a subsidiary of Northern States Power. The ACCP… more
Date: July 1, 1991
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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MHD power generation research, development and engineering. Quarterly progress report, October-December 1979

Description: Progress is reported on the following tasks: characterization of coal for open-cycle MHD power generation systems; compressive creep and strength studies of MHD preheater materials; preparation of coals for utilization in direct coal-fired MHD generation; characterization of volatile matter in coal; MHD materials evaluation; operability of the Moderate Temperature Slag Flow Facility; slag-seed equilibria and separations related to the MHD system; thermionic emission of coal and electrode materi… more
Date: January 1, 1979
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Microwave energy for post-calcination treatment of high-level nuclear wastes

Description: High-level radioactive wastes generated from nuclear fuel reprocessing require treatment for effective long-term storage. Heating by microwave energy is explored in processing of two possible waste forms: (1) drying of a pelleted form of calcined waste; and (2) vitrification of calcined waste. It is shown that residence times for these processes can be greatly reduced when using microwave energy rather than conventional heating sources, without affecting product properties. Compounds in the was… more
Date: January 1, 1980
Creator: Gombert, D.; Priebe, S. J. & Berreth, J. R.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Development of Megasonic cleaning for silicon wafers. Quarterly report No. 3, September 15, 1979-December 14, 1979

Description: During this period the total Megasonic system has been operated regularly and is functioning well. The most critical missing part is the belt drive for the air-drying system; delivery of this drive is now scheduled for the end of January. Preliminary data on wafer cleaning and rinsing indicate that the design criteria of cleaning ability, ease of operation, and safety have been largely achieved. Chemicals utilization appears to be even better than anticipated.
Date: January 1, 1980
Creator: Mayer, A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Kinetic and equilibrium measurements of coal drying

Description: The retention, attachment, and release of water (sorption, adsorption, and desorption) in Fruitland subbituminous coal are shown to be very complex phenomena. The vapor pressure and thermodynamic activity of water in the coal at about 315 K vary sharply with composition. Removal of 60% of the water initially present reduces the vapor pressure by about 60%. The total moisture content of saturated coal also varies with temperature. A 10 K rise in temperature reduces the sorbed water by about 8%. … more
Date: January 1, 1980
Creator: Heller, A. & Elliott, G.R.B.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Preliminary operational results of the low-temperature solar industrial process heat field tests

Description: Six solar industrial process heat field tests have been in operation for a year or more - three are hot water systems and three are hot air systems. All are low-temperature projects (process heat at temperatures below 212/sup 0/F). Performance results gathered by each contractor's data acquisition system are presented and project costs and problems encountered are summarized. Flat-plate, evacuated-tube, and line-focus collectors are all represented in the program, with collector array areas ran… more
Date: June 1, 1980
Creator: Kutscher, C. F. & Davenport, R. L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Programmatic environmental assessment of the DOE Solar Agricultural and Industrial Process Heat Program

Description: The program's potential environmental impacts are evaluated to ensure that environmental issues are considered at the earliest meaningful point in the decision-making process. The existing environment is studied for the following: grain drying; crop drying; livestock shelter heating; food processing; textile products; lumber and wood products; paper products; chemicals; petroleum refining; stone, clay, and glass products; and primary metals industries. Environmental impacts of the proposed acti… more
Date: June 1, 1979
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Heat transfer through coals and other naturally occurring carbonaceous rocks

Description: The understanding of heat transfer through solid fossil fuels is essential to the phenomenology of pyrolysis, gasification and combustion of these fuels. While coals have thermal conductivities of 0.1 to 0.5 W/mK at 300/sup 0/K, heat transfer measurements are complicated by the changes found in these fuels caused by the heating processes. Such complications are clearly shown when one looks at thermal conductivity differences between virgin and heat-treated materials. Coals, upon heating, underg… more
Date: January 1, 1977
Creator: Vanderborgh, N.E.; Bertino, J.P.; Cort, G.E. & Wagner, P.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Demonstration of energy conservation for multi-deck board dryers. Phase I. Final report

Description: A study was made to determine the feasibility of recover and reuse of low level heat from the exhausts of multi-deck dryers used to dry boards in the building materials industry. There are approximately 1000 dryers of this type in the USA, with no heat recovery equipment. These dryers are used in the manufacture of: roof insulation board, ceiling tile and panel stock, wood fiber sheathing, gypsum board, and veneer plywood. Pilot scale tests and analyses show that heat recovery designs utilizing… more
Date: February 8, 1980
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Kinetic Behavior of Subbituminous Coal Drying; Effects of Confining Pressure

Description: A model is developed which explains the drying behavior of a subbituminous coal. This model, a variation of the moving-boundary approach, has the vapor-liquid interface in the macropores receding from the exterior surface of the coal as drying progresses. On the liquid side of the interface, liquid water exists in all three pore systems - macropores, transitional pores, and micropores. On the vapor side of the interface, in the transitional and micropore systems branching off the macropores, th… more
Date: January 1, 1980
Creator: Brown, L. F.; Kashiwa, B. A.; Vanderborgh, N. E. & Corlett, R. C.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Conceptual flow sheets development for coal conversion plant coal handling-preparation and ash/slag removal operations

Description: This report presents 14 conceptual flow sheets and major equipment lists for coal handling and preparation operations that could be required for future, commercial coal conversion plants. These flow sheets are based on converting 50,000 tons per day of clean coal representative of the Pittsburgh and Kentucky No. 9 coal seams. Flow sheets were used by Union Carbide Corporation, Oak Ridge National Laboratory, in a survey of coal handling/preparation equipment requirements for future coal conversi… more
Date: July 1, 1979
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Potential for supplying solar thermal energy to industrial unit operations

Description: Previous studies have identified major industries deemed most appropriate for the near-term adoption of solar thermal technology to provide process heat; these studies have been based on surveys that followed standard industrial classifications. This paper presents an alternate, perhaps simpler analysis of this potential, considered in terms of the end-use of energy delivered to industrial unit operations. For example, materials, such as animal feed, can be air dried at much lower temperatures … more
Date: April 1, 1980
Creator: May, E.K.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Development of Megasonic cleaning for silicon wafers. Quarterly report No. 4

Description: The Megasonic system consisting of the cleaning and rinse tank, the air dryer with the belt drive, and the laser defect scanner, has now been completely assembled, debugged, and tested in the laboratory at various power levels and belt speeds. The results indicate that wafer-throughput design targets have been met and exceeded. At the recommended power input of 160 W per transducer about 4500 wafers per hour can be cleaned and at least 2600 wafer per hour can be dried in 3/32-in.-spaced quartz … more
Date: April 1, 1980
Creator: Mayer, A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Costs of using crop residues in direct combustion applications

Description: The economic feasibility of burning crop residues for on-farm grain drying, grain drying at a grain elevator, and electricity generation at a utility are examined. Following dramatic price increases for petroleum during 1979, grain drying is the most economically attractive alternative studied. For on-farm applications, a typical 400-acre grain harvest would consume nearly 5,500 gallons of propane to dry 52,000 bushels of corn from 22% moisture content wet basis (MCWB) to 15% MCWB. Fuel savings… more
Date: March 1, 1980
Creator: Flaim, S. & Urban, D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Immobilization of high-level defense wastes in SYNROC-D: recent research and development results on process scale-up

Description: SYNROC is a titanate-based ceramic waste form being developed to immobilize high-level nuclear reactor wastes. SYNROC-D is a unique variation of SYNROC designed to contain high-level defense wastes, particularly those in storage at the Savannah River Plant (SRP). We review recent research and development on SYNROC-D processing options and report on work in progress on various unit operations. The overall immobilization process can be divided into three general parts: (1) slurry preparation (for… more
Date: March 15, 1982
Creator: Campbell, J. H.; Rozsa, R. B. & Hoenig, C. L.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Interim report on concreted uranium fines and chips billet curing tests: a basis for resuming shipment of concreted uranium scrap billets

Description: Through extensive testing and analyses of the concretion process, billets and shipping conditions, it has been determined that properly cured concreted billets can be safely shipped to National Lead Company of Ohio (NLO), Fernald. During curing, billets will be dried for 26 days prior to shipment with the last 10 days between 54 to 66/sup 0/C (130 to 150/sup 0/F). Such dried billets can withstand temperatures up to 85/sup 0/C (185/sup 0/F). The maximum billet temperature that can be expected to… more
Date: May 2, 1980
Creator: Weakley, E.A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Characterization of titanium metal powder by pulsed NMR

Description: Moisture absorption as a function of surface area in titanium metal powders was studied by pulsed NMR. Wet samples were air-dried for 16 days under normal laboratory conditions (20 to 22/sup 0/C, 40 to 60 percent relative humidity) and the moisture contents were compared with those of vacuum-dried (200/sup 0/C, 1.33 mPa) samples and vacuum-dried samples exposed to 50 percent relative humidity. For one sample, the drying efficiency of 100/sup 0/C as compared to 200/sup 0/C, as well as the moistu… more
Date: January 1, 1977
Creator: Attalla, A.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Energy conservation in citrus processing. Technical progress report, October 1, 1979-March 31, 1980

Description: The Sunkist Citrus Plant in Ontario, California, processes about 6 million pounds of citrus fruit per day to make products which include frozen concentrated juice; chilled, pasteurized, natural strength juice; molasses from peel; dried meal from peel; pectin; citrus oil; and bioflavonoids. The energy intensive operations at the plant include concentration, drying, and refrigeration. The objective of the two-year two-phase project is to identify an economically viable alternative to the existing… more
Date: June 15, 1980
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Potential industrial applications for fluidized-bed waste heat recovery systems

Description: Information was developed on potential applications of Fluidized-Bed Waste Heat Recovery Systems (FWHRS) in US industries that will assist the DOE in their decision to plan and participate in a demonstration project of the FWHRS. The study included a review of the literature and personal contacts (via telephone) with industry personnel with the objective to identify a limited number of applications. Technical and economic assessments for specific applications were accomplished by developing gen… more
Date: December 1, 1979
Creator: Cox, D.; Lytton, M. & Rao, C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Application of foams to the processing of fabrics. Phase-III. Technical progress report, September 1, 1979-February 29, 1980

Description: Reducing the water required to wet process fabric reduces energy consumption since less energy is required to evaporate the water. This is accomplished by replacing much of the water with air, making foam and using it as an application medium. By the end of February 1980 approximately 300,000,000 yards of fabric had been foam finished. A number of finish formulations were optimized and second-generation foam formulations have been introduced since September 1979. Plant energy data from three UM… more
Date: March 1, 1980
Creator: Namboodri, C.G.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Investigation of proposed process sequence for the array automated assembly task. Phase II. Quarterly technical progress report, March 28, 1980

Description: Evaluation of infrared drying (at approximately 300/sup 0/C) PX-10 diffusion source in about one minute or less, revealed comparable results to the conventional oven drying at 150/sup 0/C for 15 minutes. Initially investigation of the fritted-nickel paste front contact indicated high series resistance. Series resistance was reduced upon solder dipping. Further experimentation on junction isolation by laser scribing the front edge of finished, non-AR coated, solar cells continued this period. Al… more
Date: April 1, 1980
Creator: Garcia, A.; Bunyan, S. & Wong, B.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Fundamental Studies of Retrograde Reactions in Direct Liquefaction

Description: Most of the proposed processing schemes for improving liquefaction yields involve favoring bond-breaking and radical stabilization reactions over the retrograde reactions. The retrograde reactions are often encountered before liquefaction temperatures are reached. The objective of this program is to elucidate and model the retrograde reaction chemistry in direct coal liquefaction through the application of experimental techniques and theoretical models which have been successfully employed at A… more
Date: January 1, 1989
Creator: Serio, M. A.; Solomon, P. R.; Bassilakis, R. & Kroo, E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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