Search Results

open access

Argon Dewar Required Relief Flow Capacity

Description: This report calculates the required fire relief valve flow capacity, the required vaporizer failure relief valve flow capacity, and the required loss of vacuum relief valve flow capacity of the liquid argon storage tank in use at the D-Zero site.
Date: September 28, 1987
Creator: Fitzpatrick, J. B.
open access

Characterization of organics in the feed streams for the H/F Effluent Treatment Facility

Description: Analysis of weekly samples from the F- and H-area treblers indicates that tri-n-butylphosphate (TBP) is the major organic species in the feed to the F/H Effluent Treatment Facility (ETF). Concentrations up to 100 mg/L were observed, with an average of 50 mg/L from F-area and 3 mg/L from H-area. Normal paraffinic hydrocarbons (NPH) are present in lesser amounts, ranging up to 4 mg/L. These two species, both foulants of the reverse osmosis (RO) membranes, account for almost all of the dissolved o… more
Date: September 28, 1987
Creator: Oblath, S. B.
open access

Direct Catalytic Conversion of Methane and Light Hydrocarbon Gases Quarterly Report: Number 3

Description: The goal of this research is to develop catalysts that directly convert methane and light hydrocarbons to intermediates that can, as economics dictate, be subsequently converted either to liquid fuels or value-added chemicals. In this program we are exploring two approaches to developing such catalysts. The first approach consists of developing advanced catalysts for reforming methane. We will prepare the catalysts by reacting organometallic complexes of transition metals (Fe, Ru, Rh, and Re) w… more
Date: August 28, 1987
Creator: Wilson, Robert B., Jr. & Chan, Yee Wai
open access

ECH (electron cyclotron heating) in the Microwave Tokamak Experiment

Description: The Microwave Tokamak Experiment (MTX) at LLNL will investigate electron heating in the MTX tokamak (formerly Alcator-C) at high density (up to 6 x 10/sup 20/ m/sup -3/) and high power by using a free electron laser (FEL). Parameters of the FEL are a peak power up to 8 GW and 50 ns duration, with average power 1 to 2 MW, at a frequency of 250 GHz. The planned input driver for the FEL is a gyrotron oscillator. The FEL output will be transported quasi-optically, inside a 50 cm evacuated pipe, to … more
Date: April 28, 1987
Creator: Stallard, B. W.; Smith, G. R.; James, R. A.; Thomassen, K. I.; Kritz, A. H.; Makowski, M. et al.
open access

Enhanced durability and reactivity for zinc ferrite desulfurization sorbent

Description: AMAX Research Development Center (AMAX R D) has been investigating methods for enhancing the reactivity and durability of the zinc ferrite desulfurization sorbent. Zinc ferrite sorbents are intended for use in desulfurization of hot coal gas in integrated gasification combined cycle (IGCC) or molten carbonate fuel cell (MCFC) applications. For the present program, the reactivity of the sorbent may be defined as its sulfur sorption capacity at the breakthrough point and at saturation in a bench-… more
Date: August 28, 1987
Creator: Jha, Mahesh C.; Baltich, Linda K. & Berggren, Mark H.
open access

Enhanced durability and reactivity for zinc ferrite desulfurization sorbent. Quarterly technical progress report No. 3, April--June 1987

Description: AMAX Research & Development Center (AMAX R&D) has been investigating methods for enhancing the reactivity and durability of the zinc ferrite desulfurization sorbent. Zinc ferrite sorbents are intended for use in desulfurization of hot coal gas in integrated gasification combined cycle (IGCC) or molten carbonate fuel cell (MCFC) applications. For the present program, the reactivity of the sorbent may be defined as its sulfur sorption capacity at the breakthrough point and at saturation in a benc… more
Date: August 28, 1987
Creator: Jha, M. C.; Baltich, L. K. & Berggren, M. H.
open access

The EPRI Laboratory experiments at ANL. [Vaporization of core-concrete mixtures]

Description: The vaporization of core-concrete mixtures is being measured using a transpiration method. Mixtures of stainless steel, concrete (limestone or basaltic) and urania (doped with La/sub 2/O/sub 3/, SrO, BaO, and ZrO/sub 2/) are vaporized at 2150 - 2400 K from a zirconia crucible into flowing He - 6% H/sub 2/ gas. Up to 600 ppM H/sub 2/O is added to the gas to fix the partial molar free energy of oxygen in the range -420 kJ to -550 kJ. The fraction of the sample that is vaporized is determined by w… more
Date: October 28, 1987
Creator: Roche, M. F.; Settle, J. L.; Leibowitz, L.; Johnson, C. E. & Ritzman, R. L.
open access

I.F.H. Quarter Module Lifting Fixture

Description: The main purpose of this report is to explain the procedure for lifting the I.F.H. quarter module from a 'prone' position to a 'standing' position and then into the liquid nitrogen test vessel. The main objective for the design of the lifting fixtures was simplicity. The fixtures are to be made of .75 inch thick stainless steel plates which is a stock item for the steel companies. The fixtures are stainless steel so they will be able to keep their structural integrity when immersed in the liqui… more
Date: April 28, 1987
Creator: May, M.P.
open access

Fouling effects of tri-n-butylphosphate on reverse osmosis performance and techniques for performance recovery

Description: The F/H Effluent Treatment Facility (F/H ETF) must be on-line by November 1988 to treat the low level activity wastes presently being discharged to the F- and H- areas' seepage basins. The three main processes of the F/H ETF are filtration, reverse osmosis, and ion exchange. Any dissolved organics present in the F/H ETF's feed have the potential to affect operation of the reverse osmosis system. Earlier studies with F/H ETF feed simulant and 70 volume percent kerosene and 30 volume percent tri-… more
Date: July 28, 1987
Creator: Poy, F. L.
open access

LANL compact laser pumping simulation. Final task report

Description: Rockwell has been tasked with the objective of both qualitatively and quantitatively defining the performance of LANL Compact Laser coupling systems. The performance criteria of the system will be based upon the magnitude and uniformity of the energy distribution in the laser pumping rod. Once this is understood, it will then be possible to improve the device performance via changes in the system`s component parameters. For this study, the authors have chosen to use the Los Alamos Radiometry Co… more
Date: September 28, 1987
Creator: Feldman, B. S. & White, J.
open access

Nuclear materials transportation workshops: USDOE outreach to local governments. Final report

Description: To provide direct outreach to local governments, the Transportation Management Division of the United States Department of Energy asked the Urban Consortium and its Energy Task Force to assemble representatives for two workshops focusing on the transport of nuclear materials. The first session, for jurisdictions east of the Mississippi River, was held in New Orleans on May 5--6, 1988; the second was conducted on June 6--7, 1988 in Denver for jurisdictions to the west. Twenty local government pr… more
Date: September 28, 1987
open access

Radiation imposed limits on superconducting magnets: A data base for copper stabilizers

Description: Two of eight differently prepared copper stabilizer samples, previously irradiated in the RTNS-II at LLNL, the IPNS-1 and the BSR at ORNL, have been irradiated to a fluence of 1.33 /times/ 10/sup 22/ n/m/sup 2/ at RTNS-II. During the course of the irradiation the samples were periodically removed (without warming) for measurements of the transverse magnetoresistance and returned for continued irradiation. This experiment extends the range of neutron-irradiation-induced resistivity by a factor o… more
Date: October 28, 1987
Creator: Guinan, M.W.; Hahn, P.A.; Klabunde, C.E. & Coltman, R.R. Jr.
open access

Solar dynamic heat pipe development and endurance test. Monthly technical progress report number 5, 30 September--28 October, 1987

Description: The Space Station requires a high level of reliable electric power. The baseline approach is to utilize a hybrid system in which power is provided by photovoltaic arrays and by solar dynamic power conversion modules. The organic Rankine cycle (ORC) engine is one approach to solar dynamic conversion. The ORC provides the attributes of high efficiency at low temperature and compact simple designs utilizing conventional techniques and materials. The heat receiver is one area which must be addresse… more
Date: October 28, 1987
Creator: Parekh, M.B.
open access

Thermal stress in the edge cladding of Nova glass laser disks

Description: We calculated thermal stresses in Nova glass laser disks having light-absorbing edge cladding glass attached to the periphery with an epoxy adhesive. Our closed-form solutions indicated that, because the epoxy adhesive is only 25 ..mu..m across, it does not significantly affect the thermal stress in the disk or cladding glass. Our numerical results showed a peak tensile stress in the cladding glass of 24 MPa when the cladding glass had a uniform absorption coefficient of 7.5 cm/sup -1/. This pe… more
Date: September 28, 1987
Creator: Pitts, J. H.; Kong, M. K. & Gerhard, M. A.
open access

Tumulus Disposal Demonstration Facility for the Oak Ridge Reservation

Description: This disposal concept is based on the Tumulus design developed by the French at the La Manche facility. Waste units are stacked above-grade on a concrete pad. The facility currently under development at the Oak Ridge National Laboratory (ORNL) involves sealing waste in concrete vaults, placing the vaults on a grade level concrete pad, and covering the pad and vaults with a soil cover after vault emplacement is complete. Emplacement is expected to continue until the facility exhausts its approxi… more
Date: June 28, 1987
Creator: Clapp, R.B. & van Hoesen, S.D.
open access

Using the Nova target chamber for high-yield targets

Description: The existing 2.2-m-radius Nova aluminum target chamber, coated and lined with boron-seeded carbon shields, is proposed for use with 1000-MJ-yield targets in the next laser facility. The laser beam and diagnostic holes in the target chamber are left open and the desired 10/sup -2/ Torr vacuum is maintained both inside and outside the target chamber; a larger target chamber room is the vacuum barrier to the atmosphere. The hole area available is three times that necessary to maintain a maximum fl… more
Date: September 28, 1987
Creator: Pitts, J.H.
Back to Top of Screen