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Benchmarking of FLOWTRAN with Mark-22 mockup flow excursion test data from Babcock & Wilcox

Description: Version 16.2 of the FLOWTRAN code with a Savannah River Site (SRS) working criterion (St=0.00455) for the onset of significant void (OSV) was benchmarked against power and flow excursion data derived from tests at the Babcock & Wilcox Alliance Research Center test facility. The analyses show that FLOWTRAN accurately predicts the mockup test assembly thermal-hydraulic behavior during the steady state and LOCA transient conditions, and that FLOWTRAN with a Savannah River Site (SRS) working limits… more
Date: November 1, 1991
Creator: Chen, K. F.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

The Effect of Sedimentation on Plutonium Transport in Fourmile Branch

Description: The major mechanisms of radioactive material transport and fate in surface water are sources, dilution, advection and dispersion of radionuclides by flow and surface waves, radionuclide decay, and interaction between sediment and radionuclides. STREAM II, an aqueous transport module of the Savannah River Site emergency response WIND system, accounts for the source term, and the effects of dilution, advection and dispersion. Although the model has the capability to account for nuclear decay, due… more
Date: February 21, 2002
Creator: Chen, K.F.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

STREAM II-V4: Revision for STREAM II-V3 to Allow Mouse-Driven Selection of Release Location from a Graphical User Interface

Description: STREAM II-V3 is an aqueous transport module of the Savannah River Site emergency response Weather INformation Display (WIND) system. Stream II-V3 predicts peak concentration and peak concentration arrival time at downstream locations for releases from the SRS facilities to the Savannah River. Fifteen pre-determined potential release locations from SRS facilities were built into the current STREAM II-V3 model. Therefore, STREAM II-V3 can not be used for situations in which release locations diff… more
Date: December 18, 2002
Creator: Chen, K.F.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Revised STREAM code and WASP5 benchmark

Description: STREAM is an emergency response code that predicts downstream pollutant concentrations for releases from the SRS area to the Savannah River. The STREAM code uses an algebraic equation to approximate the solution of the one dimensional advective transport differential equation. This approach generates spurious oscillations in the concentration profile when modeling long duration releases. To improve the capability of the STREAM code to model long-term releases, its calculation module was replace… more
Date: May 1, 1995
Creator: Chen, K.F.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Flood Hazard Recurrence Frequencies for C-, F-, E-, S-, H-, Y-, and Z-Areas

Description: A method was developed to determine the probabilistic flood elevation curves for Savannah River Site facilities. This report presents the method used to determine the probabilistic flood elevation curves for C-, F-, E-, H-, S-, Y-, and Z-Areas due to runoff from the Upper Three Runs and Fourmile Branch basins.
Date: November 18, 1999
Creator: Chen, K.F.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Benchmarking of FLOWTRAN with Mark-22 mockup flow excursion test data from Babcock Wilcox

Description: Version 16.2 of the FLOWTRAN code with a Savannah River Site (SRS) working criterion (St=0.00455) for the onset of significant void (OSV) was benchmarked against power and flow excursion data derived from tests at the Babcock Wilcox Alliance Research Center test facility. The analyses show that FLOWTRAN accurately predicts the mockup test assembly thermal-hydraulic behavior during the steady state and LOCA transient conditions, and that FLOWTRAN with a Savannah River Site (SRS) working limits c… more
Date: November 1, 1991
Creator: Chen, K.F.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Pen Branch Delta and Savannah River Swamp Hydraulic Model

Description: The proposed Savannah River Site (SRS) Wetlands Restoration Project area is located in Barnwell County, South Carolina on the southwestern boundary of the SRS Reservation. The swamp covers about 40.5 km2 and is bounded to the west and south by the Savannah River and to the north and east by low bluffs at the edge of the Savannah River floodplain. Water levels within the swamp are determined by stage along the Savannah River, local drainage, groundwater seepage, and inflows from four tributaries… more
Date: May 13, 1999
Creator: Chen, K.F.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

STREAM II-V3: Revision for STREAM II-V2 to Include the Sedimentation Effects on a Release from H-Area

Description: STREAM II, an aqueous transport module of the Savannah River Site emergency response Weather INformation Display (WIND) system, accounts for the effects of dilution, advection and dispersion. Although the model has the capability to account for nuclear decay, due to the short time interval of interest for emergency response, the effect of nuclear decay is very small and so it is not employed. The interactions between the sediment and radionuclides are controlled by the flow conditions and physi… more
Date: February 21, 2002
Creator: Chen, K.F.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Benchmarking WASP5 with data from the 1991 K-Reactor tritiated aqueous release incident

Description: The Savannah River Site (SRS) has upgraded its aqueous emergency response capability to model the transport of pollutants released from SRS facilities during normal operation or accidents through onsite streams to the Savannah River. The transport and dispersion modules from the US Environmental Protection Agency (EPA) WASP5 model were incorporated into the SRS emergency response system, called the Weather Information and Display (WIND) System. WASP5 is a water quality analysis program that sim… more
Date: November 7, 1996
Creator: Chen, K.F.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Surface Water Modeling Using an EPA Computer Code for Tritiated Waste Water Discharge from the heavy Water Facility

Description: Tritium releases from the D-Area Heavy Water Facilities to the Savannah River have been analyzed. The U.S. EPA WASP5 computer code was used to simulate surface water transport for tritium releases from the D-Area Drum Wash, Rework, and DW facilities. The WASP5 model was qualified with the 1993 tritium measurements at U.S. Highway 301. At the maximum tritiated waste water concentrations, the calculated tritium concentration in the Savannah River at U.S. Highway 301 due to concurrent releases fro… more
Date: June 1, 1998
Creator: Chen, K.F.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

STREAM2 for Aqueous Release Emergency Response

Description: This report documents the STREAM2 code and its input models developed for the WIND System. STREAM2 is a modification of the STREAM code, which is the transport and diffusion module of the WIND System aqueous emergency response program. STREAM predicts downstream pollutant concentrations for releases from the Savannah River Site to the Savannah River. The STREAM calculation module uses an algebraic equation to approximate the solution of the differential one-dimensional advective transport equat… more
Date: September 23, 1998
Creator: Chen, K.F.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

7Q10 flows for SRS streams

Description: The Environmental Transport Group of the Environmental Technology Section was requested to predict the seven-day ten-year low flow (7Q10 flow) for the SRS streams based on historical stream flow records. Most of the historical flow records for the SRS streams include reactor coolant water discharged from the reactors and process water released from the process facilities. The most straight forward way to estimate the stream daily natural flow is to subtract the measured upstream reactor and/or … more
Date: October 1, 1996
Creator: Chen, K. F.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

STREAM2 Revision 1: An aqueous release emergency response model

Description: This report documents the revision for STREAM2 code and its input files. STREAM2 is an aqueous transport module of the WIND system. As requested by the Emergency Response Department, two surface aqueous release locations (McQueen Branch and Tims Branch) were added in the STREAM2 code. In addition, the revised STREAM2 has the capability to vary the channel-segment volume based on channel flow to better represent the open channel hydraulics. Thus, the updated version of STREAM2 improves the conta… more
Date: April 14, 2000
Creator: Chen, K.F.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

1995 and 1996 Upper Three Runs Dye Study Data Analyses

Description: This report presents an analysis of dye tracer studies conducted on Upper Three Runs. The revised STREAM code was used to analyze these studies and derive a stream velocity and a dispersion coefficient for use in aqueous transport models. These models will be used to facilitate the establishment of aqueous effluent limits and provide contaminant transport information to emergency management in the event of a release.
Date: June 1998
Creator: Chen, K. F.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Revised STREAM code benchmarking with 1991 K-reactor tritiated aqueous release incident

Description: The transport and diffusion module of the WIND System aqueous emergency response program (STREAM code) was replaced with the EPA WASP5 code. A set of input data was developed to model the transport of pollutants from a release point in K-Area to Savannah, Georgia through Indian Grave Branch, Pen Branch, the SRS swamp, Steel Creek, and the Savannah River. To evaluate the modifications to the STREAM code, data from an accidental release of tritiated water from K-Reactor in 1991 were used for benc… more
Date: April 25, 1996
Creator: Chen, K.F.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

THE APPLICATION OF A STATISTICAL DOWNSCALING PROCESS TO DERIVE 21{sup ST} CENTURY RIVER FLOW PREDICTIONS USING A GLOBAL CLIMATE SIMULATION

Description: The ability of water managers to maintain adequate supplies in coming decades depends, in part, on future weather conditions, as climate change has the potential to alter river flows from their current values, possibly rendering them unable to meet demand. Reliable climate projections are therefore critical to predicting the future water supply for the United States. These projections cannot be provided solely by global climate models (GCMs), however, as their resolution is too coarse to resolv… more
Date: August 22, 2013
Creator: Werth, D. & Chen, K. F.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

From the LHC to Future Colliders

Description: Discoveries at the LHC will soon set the physics agenda for future colliders. This report of a CERN Theory Institute includes the summaries of Working Groups that reviewed the physics goals and prospects of LHC running with 10 to 300 fb{sup -1} of integrated luminosity, of the proposed sLHC luminosity upgrade, of the ILC, of CLIC, of the LHeC and of a muon collider. The four Working Groups considered possible scenarios for the first 10 fb{sup -1} of data at the LHC in which (i) a state with pro… more
Date: June 11, 2010
Creator: De Roeck, A.; Ellis, J.; Grojean, C.; Heinemeyer, S.; Jakobs, K.; Weiglein, G. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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