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Note: This page contains sample records for the topic "bucknell hydraulic flume" from the National Library of EnergyBeta (NLEBeta).
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We encourage you to perform a real-time search of NLEBeta
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1

Bucknell Hydraulic Flume | Open Energy Information  

Open Energy Info (EERE)

Hydraulic Flume Hydraulic Flume Jump to: navigation, search Basic Specifications Facility Name Bucknell Hydraulic Flume Overseeing Organization Bucknell University Hydrodynamic Testing Facility Type Flume Length(m) 9.8 Beam(m) 1.2 Depth(m) 0.6 Water Type Freshwater Cost(per day) Depends on personnel requirements Towing Capabilities Towing Capabilities Yes Maximum Velocity(m/s) 2.7 Wavemaking Capabilities Wavemaking Capabilities None Channel/Tunnel/Flume Channel/Tunnel/Flume Yes Velocity(m/s) 2.7 Recirculating Yes Wind Capabilities Wind Capabilities None Control and Data Acquisition Description Various sensors available on a test-by-test basis Available Sensors Flow, Velocity Data Generation Capability Real-Time No Integrated Display/Graphics Microsoft Windows based systems

2

Bucknell University | Open Energy Information  

Open Energy Info (EERE)

University University Jump to: navigation, search Hydro | Hydrodynamic Testing Facilities Name Bucknell University Address Civil & Mechanical Engineering Departments, Hydraulic Flume, 701 Moore Avenue, Dana Engineering Building Place Lewisburg, PA Zip 17837 Sector Hydro Phone number (570) 577-3193 Website http://www.bucknell.edu/x16287 Coordinates 40.955691952072°, -76.88521027565° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":40.955691952072,"lon":-76.88521027565,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

3

Property:Channel/Tunnel/Flume | Open Energy Information  

Open Energy Info (EERE)

Channel/Tunnel/Flume Channel/Tunnel/Flume Jump to: navigation, search Property Name Channel/Tunnel/Flume Property Type String Pages using the property "Channel/Tunnel/Flume" Showing 25 pages using this property. (previous 25) (next 25) 1 1.5-ft Wave Flume Facility + Yes + 10-ft Wave Flume Facility + Yes + 11-ft Wave Flume Facility + None + 2 2-ft Flume Facility + Yes + 3 3-ft Wave Flume Facility + None + 5 5-ft Wave Flume Facility + Yes + 6 6-ft Wave Flume Facility + Yes + A Alden Large Flume + Yes + Alden Small Flume + Yes + Alden Tow Tank + None + Alden Wave Basin + None + B Breakwater Research Facility + None + Bucknell Hydraulic Flume + Yes + C Carderock 2-ft Variable Pressure Cavitation Water Tunnel + Yes + Carderock 3-ft Variable Pressure Cavitation Water Tunnel + Yes +

4

Name Name Address Place Zip Category Sector Telephone number Website  

Open Energy Info (EERE)

Category Sector Telephone number Website Category Sector Telephone number Website Coordinates Testing Facilities Overseen References Alden Research Laboratory Inc Alden Research Laboratory Inc Shrewsbury Street Shrewsbury Street Holden Massachusetts Category Testing Facility Operators Hydro Hydro http www aldenlab com http www aldenlab com Alden Tow Tank Alden Wave Basin Alden Small Flume Alden Large Flume Bucknell University Bucknell University Civil Mechanical Engineering Departments Hydraulic Flume Moore Avenue Dana Engineering Building Lewisburg Pennsylvania Category Testing Facility Operators Hydro http www bucknell edu x16287 xml Bucknell Hydraulic Flume Colorado State University Hydrodynamics Colorado State University Hydrodynamics Daryl B Simons Building Engineering Research Center Campus Delivery

5

Kennedy Flume | Open Energy Information  

Open Energy Info (EERE)

Flume Flume Jump to: navigation, search Basic Specifications Facility Name Kennedy Flume Overseeing Organization University of Iowa Hydrodynamic Testing Facility Type Flume Length(m) 27.4 Beam(m) 0.9 Depth(m) 0.5 Cost(per day) Contact POC Special Physical Features Tilting flume; sedimentation recirculation capabilities; instrumentation rails; various weirs; dual pumps Towing Capabilities Towing Capabilities None Wavemaking Capabilities Wavemaking Capabilities None Channel/Tunnel/Flume Channel/Tunnel/Flume Yes Recirculating No Wind Capabilities Wind Capabilities None Control and Data Acquisition Cameras None Available Sensors Acoustics, Flow, Thermal, Turbulence, Velocity Data Generation Capability Real-Time Yes Test Services Test Services Yes On-Site fabrication capability/equipment Machine shop, carpenter shop, welding shop, instrumentation and electronics shop

6

Teaching Flume | Open Energy Information  

Open Energy Info (EERE)

Teaching Flume Teaching Flume Jump to: navigation, search Basic Specifications Facility Name Teaching Flume Overseeing Organization University of Iowa Hydrodynamic Testing Facility Type Flume Length(m) 9.1 Beam(m) 0.6 Depth(m) 0.5 Cost(per day) Contact POC Special Physical Features Tilting flume; sedimentation recirculation capabilities; instrumentation rails; various weirs Towing Capabilities Towing Capabilities None Wavemaking Capabilities Wavemaking Capabilities None Channel/Tunnel/Flume Channel/Tunnel/Flume Yes Recirculating Yes Wind Capabilities Wind Capabilities None Control and Data Acquisition Cameras None Available Sensors Acoustics, Flow, Thermal, Turbulence, Velocity Data Generation Capability Real-Time Yes Test Services Test Services Yes On-Site fabrication capability/equipment Machine shop, carpenter shop, welding shop, instrumentation and electronics shop

7

Erosion Flume | Open Energy Information  

Open Energy Info (EERE)

Erosion Flume Erosion Flume Jump to: navigation, search Basic Specifications Facility Name Erosion Flume Overseeing Organization University of Iowa Hydrodynamic Testing Facility Type Flume Length(m) 9.1 Beam(m) 0.6 Depth(m) 0.9 Cost(per day) Contact POC Special Physical Features Tilting flume from -5 to +21% slope; erodibility of grassed boxes; dual pumps up to 50 cfs. Towing Capabilities Towing Capabilities None Wavemaking Capabilities Wavemaking Capabilities None Channel/Tunnel/Flume Channel/Tunnel/Flume Yes Recirculating No Wind Capabilities Wind Capabilities None Control and Data Acquisition Cameras None Available Sensors Acoustics, Thermal, Turbulence, Velocity Data Generation Capability Real-Time Yes Test Services Test Services Yes On-Site fabrication capability/equipment Machine shop, carpenter shop, welding shop, instrumentation and electronics shop

8

Environmental Flume | Open Energy Information  

Open Energy Info (EERE)

Environmental Flume Environmental Flume Jump to: navigation, search Basic Specifications Facility Name Environmental Flume Overseeing Organization University of Iowa Hydrodynamic Testing Facility Type Flume Length(m) 30.5 Beam(m) 3.1 Depth(m) 2.3 Cost(per day) Contact POC Special Physical Features Dual pumps up to 150 cfs; glass walls Towing Capabilities Towing Capabilities None Wavemaking Capabilities Wavemaking Capabilities None Channel/Tunnel/Flume Channel/Tunnel/Flume Yes Recirculating No Wind Capabilities Wind Capabilities None Control and Data Acquisition Cameras None Available Sensors Acoustics, Thermal, Turbulence, Velocity Data Generation Capability Real-Time Yes Test Services Test Services Yes On-Site fabrication capability/equipment Machine shop, carpenter shop, welding shop, instrumentation and electronics shop

9

Stennis Flume | Open Energy Information  

Open Energy Info (EERE)

Stennis Flume Stennis Flume Jump to: navigation, search Basic Specifications Facility Name Stennis Flume Overseeing Organization United States Geological Survey, HIF Hydrodynamic Testing Facility Type Flume Length(m) 76.2 Beam(m) 1.8 Depth(m) 0.9 Cost(per day) $1200 (+ setup charges) Towing Capabilities Towing Capabilities None Wavemaking Capabilities Wavemaking Capabilities None Channel/Tunnel/Flume Channel/Tunnel/Flume Yes Recirculating No Wind Capabilities Wind Capabilities None Control and Data Acquisition Cameras None Data Generation Capability Real-Time No Test Services Test Services Yes Utility Services Available 440/220/110 electric available On-Site fabrication capability/equipment Small machine shop Special Characteristics Special Characteristics Yes Types of Co-located facilities Live velocity Jet Tank facility with 0.6m diameter jet with maximum velocity of 2.5 m/s

10

Property:Hydrodynamic Testing Facility Type | Open Energy Information  

Open Energy Info (EERE)

Hydrodynamic Testing Facility Type Hydrodynamic Testing Facility Type Jump to: navigation, search Property Name Hydrodynamic Testing Facility Type Property Type Page Pages using the property "Hydrodynamic Testing Facility Type" Showing 25 pages using this property. (previous 25) (next 25) 1 1.5-ft Wave Flume Facility + Flume + 10-ft Wave Flume Facility + Flume + 11-ft Wave Flume Facility + Flume + 2 2-ft Flume Facility + Flume + 3 3-ft Wave Flume Facility + Flume + 5 5-ft Wave Flume Facility + Flume + 6 6-ft Wave Flume Facility + Flume + A Alden Large Flume + Flume + Alden Small Flume + Flume + Alden Tow Tank + Tow Tank + Alden Wave Basin + Wave Basin + B Breakwater Research Facility + Wave Basin + Bucknell Hydraulic Flume + Flume + C Carderock 2-ft Variable Pressure Cavitation Water Tunnel + Tunnel +

11

Scripps Flume | Open Energy Information  

Open Energy Info (EERE)

Basic Specifications Facility Name Scripps Flume Overseeing Organization University of California, San Diego (Scripps) Hydrodynamic Testing Facility Type Flume Length(m) 16.0 Beam(m) 1.1 Depth(m) 1.1 Cost(per day) Contact POC Special Physical Features Double sided glass wall test section. Towing Capabilities Towing Capabilities None Wavemaking Capabilities Wavemaking Capabilities None Channel/Tunnel/Flume Channel/Tunnel/Flume Yes Velocity(m/s) 1.25 Recirculating No Wind Capabilities Wind Capabilities None Control and Data Acquisition Description Data only, control system separate, pc based, Measurement Computing PCI-DAS6014 card, 16 channel, 16 bit. DAS-Wizard software. Number of channels 16 Bandwidth(kHz) .1 Hz; dependent on number of channels and computer speed

12

Property:Water Type | Open Energy Information  

Open Energy Info (EERE)

Type Type Jump to: navigation, search Property Name Water Type Property Type String Pages using the property "Water Type" Showing 25 pages using this property. (previous 25) (next 25) 1 1.5-ft Wave Flume Facility + Freshwater + 10-ft Wave Flume Facility + Freshwater + 11-ft Wave Flume Facility + Freshwater + 2 2-ft Flume Facility + Freshwater + 3 3-ft Wave Flume Facility + Freshwater + 5 5-ft Wave Flume Facility + Freshwater + 6 6-ft Wave Flume Facility + Freshwater + A Alden Large Flume + Freshwater + Alden Small Flume + Freshwater + Alden Tow Tank + Freshwater + Alden Wave Basin + Freshwater + B Breakwater Research Facility + Freshwater + Bucknell Hydraulic Flume + Freshwater + C Carderock 2-ft Variable Pressure Cavitation Water Tunnel + Freshwater +

13

Steep Gradient Flume | Open Energy Information  

Open Energy Info (EERE)

Steep Gradient Flume Steep Gradient Flume Jump to: navigation, search Basic Specifications Facility Name Steep Gradient Flume Overseeing Organization University of Iowa Hydrodynamic Testing Facility Type Flume Length(m) 20.1 Beam(m) 0.9 Depth(m) 0.5 Cost(per day) Contact POC Special Physical Features Tilting flume from -1.5 to +16% slope; <3mm sedimentation recirculation capabilities; instrumentation rails Towing Capabilities Towing Capabilities None Wavemaking Capabilities Wavemaking Capabilities None Channel/Tunnel/Flume Channel/Tunnel/Flume Yes Recirculating Yes Wind Capabilities Wind Capabilities None Control and Data Acquisition Cameras Yes Number of Color Cameras 1 Available Sensors Acoustics, Flow, Thermal, Turbulence, Velocity Data Generation Capability Real-Time Yes

14

Alden Large Flume | Open Energy Information  

Open Energy Info (EERE)

Flume Flume Jump to: navigation, search Basic Specifications Facility Name Alden Large Flume Overseeing Organization Alden Research Laboratory, Inc Hydrodynamic Testing Facility Type Flume Length(m) 24.4 Beam(m) 6.1 Depth(m) 3.0 Water Type Freshwater Cost(per day) $5000/week Towing Capabilities Towing Capabilities Yes Maximum Velocity(m/s) 0.9 Maximum Velocity with Constriction(m/s) 3 Wavemaking Capabilities Wavemaking Capabilities Yes Maximum Wave Height(m) 0.0 Maximum Wave Height(m) at Wave Period(s) 0.0 Wave Period Range(s) 2.1 Current Velocity Range(m/s) 3.2 Programmable Wavemaking Yes Wavemaking Description Wave generators not yet designed Simulated Beach No Channel/Tunnel/Flume Channel/Tunnel/Flume Yes Recirculating Yes Wind Capabilities Wind Capabilities Yes

15

Sediment Basin Flume | Open Energy Information  

Open Energy Info (EERE)

Sediment Basin Flume Sediment Basin Flume Jump to: navigation, search Basic Specifications Facility Name Sediment Basin Flume Overseeing Organization University of Iowa Hydrodynamic Testing Facility Type Flume Length(m) 22.7 Beam(m) 5.1 Depth(m) 1.2 Cost(per day) Contact POC Special Physical Features Two pumps provide up to 18 cfs of flow capacity Towing Capabilities Towing Capabilities None Wavemaking Capabilities Wavemaking Capabilities None Channel/Tunnel/Flume Channel/Tunnel/Flume Yes Recirculating No Wind Capabilities Wind Capabilities None Control and Data Acquisition Cameras None Available Sensors Acoustics, Flow, Thermal, Turbulence, Velocity Data Generation Capability Real-Time Yes Test Services Test Services Yes On-Site fabrication capability/equipment Machine shop, carpenter shop, welding shop, instrumentation and electronics shop

16

2-ft Flume Facility | Open Energy Information  

Open Energy Info (EERE)

2-ft Flume Facility 2-ft Flume Facility Jump to: navigation, search Basic Specifications Facility Name 2-ft Flume Facility Overseeing Organization United States Army Corp of Engineers (ERDC) Hydrodynamic Testing Facility Type Flume Length(m) 61.0 Beam(m) 0.6 Depth(m) 1.8 Water Type Freshwater Cost(per day) Contact POC Towing Capabilities Towing Capabilities None Wavemaking Capabilities Wavemaking Capabilities Yes Maximum Wave Height(m) 0.6 Maximum Wave Height(m) at Wave Period(s) 10.0 Wave Period Range(s) 10.0 Current Velocity Range(m/s) 0.0 Programmable Wavemaking Yes Simulated Beach No Channel/Tunnel/Flume Channel/Tunnel/Flume Yes Wind Capabilities Wind Capabilities None Control and Data Acquisition Description Automated data acquisition and control system Cameras None

17

Alden Small Flume | Open Energy Information  

Open Energy Info (EERE)

Flume Flume Jump to: navigation, search Basic Specifications Facility Name Alden Small Flume Overseeing Organization Alden Research Laboratory, Inc Hydrodynamic Testing Facility Type Flume Length(m) 17.1 Beam(m) 1.8 Depth(m) 1.8 Water Type Freshwater Cost(per day) $2500/week Towing Capabilities Towing Capabilities None Wavemaking Capabilities Wavemaking Capabilities Yes Maximum Wave Height(m) 0.2 Maximum Wave Length(m) Variable Wave Period Range(s) 0.0 Current Velocity Range(m/s) 0.0 Programmable Wavemaking Yes Wavemaking Description Period adjustable electronically, height adjustable mechanically Wave Direction Uni-Directional Simulated Beach No Channel/Tunnel/Flume Channel/Tunnel/Flume Yes Velocity(m/s) >0.9 Recirculating No Wind Capabilities Wind Capabilities Yes

18

Sectional Model Flume Facilities | Open Energy Information  

Open Energy Info (EERE)

Sectional Model Flume Facilities Sectional Model Flume Facilities Jump to: navigation, search Basic Specifications Facility Name Sectional Model Flume Facilities Overseeing Organization United States Army Corp of Engineers (ERDC) Hydrodynamic Testing Facility Type Flume Length(m) 21.3 Beam(m) 1.4 Depth(m) 2.4 Water Type Freshwater Cost(per day) Contact POC Towing Capabilities Towing Capabilities None Wavemaking Capabilities Wavemaking Capabilities Yes Maximum Wave Height(m) 0.0 Wave Period Range(s) 0.0 Current Velocity Range(m/s) 0.0 Programmable Wavemaking No Simulated Beach No Channel/Tunnel/Flume Channel/Tunnel/Flume Yes Recirculating No Wind Capabilities Wind Capabilities None Control and Data Acquisition Description Automated data acquisition and control system Cameras None Available Sensors Flow, Pressure Range(psi), Turbulence, Velocity, Wave Probe

19

Conte Large Flume | Open Energy Information  

Open Energy Info (EERE)

Conte Large Flume Conte Large Flume Overseeing Organization United States Geological Survey, LSC Hydrodynamic Testing Facility Type Flume Length(m) 38.1 Beam(m) 6.1 Depth(m) 5.2 Cost(per day) Contact POC Towing Capabilities Towing Capabilities None Wavemaking Capabilities Wavemaking Capabilities None Channel/Tunnel/Flume Channel/Tunnel/Flume Yes Recirculating No Wind Capabilities Wind Capabilities None Control and Data Acquisition Description National Instruments LabView and other data acquisition systems Number of channels 12 Bandwidth(kHz) 44 Cameras Yes Number of Color Cameras 5 Description of Camera Types Conventional underwater video, 4; high speed (1000 fps), 1 Available Sensors Displacement, Flow, Pressure Range(psi), Thermal, Turbulence, Velocity Data Generation Capability

20

Conte Small Flume | Open Energy Information  

Open Energy Info (EERE)

Small Flume Small Flume Overseeing Organization United States Geological Survey, LSC Hydrodynamic Testing Facility Type Flume Length(m) 38.1 Beam(m) 3.0 Depth(m) 5.2 Cost(per day) Contact POC Towing Capabilities Towing Capabilities None Wavemaking Capabilities Wavemaking Capabilities None Channel/Tunnel/Flume Channel/Tunnel/Flume Yes Recirculating No Wind Capabilities Wind Capabilities None Control and Data Acquisition Description National Instruments LabView and other data acquisition systems Number of channels 12 Bandwidth(kHz) 44 Cameras Yes Number of Color Cameras 5 Description of Camera Types Conventional underwater video, 4; high speed (1000 fps), 1 Available Sensors Displacement, Flow, Pressure Range(psi), Thermal, Turbulence, Velocity Data Generation Capability

Note: This page contains sample records for the topic "bucknell hydraulic flume" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


21

Property:Recirculating | Open Energy Information  

Open Energy Info (EERE)

Recirculating Recirculating Jump to: navigation, search Property Name Recirculating Property Type String Pages using the property "Recirculating" Showing 25 pages using this property. (previous 25) (next 25) 1 1.5-ft Wave Flume Facility + No + 10-ft Wave Flume Facility + No + 5 5-ft Wave Flume Facility + No + 6 6-ft Wave Flume Facility + No + A Alden Large Flume + Yes + Alden Small Flume + No + B Bucknell Hydraulic Flume + Yes + C Carderock 2-ft Variable Pressure Cavitation Water Tunnel + Yes + Carderock 3-ft Variable Pressure Cavitation Water Tunnel + Yes + Carderock Large Cavitation Tunnel + Yes + Carderock Subsonic Wind Tunnel + Yes + Conte Large Flume + No + Conte Small Flume + No + D DeFrees Flume 1 + No + DeFrees Flume 2 + No + DeFrees Flume 3 + No +

22

DeFrees Flume 4 | Open Energy Information  

Open Energy Info (EERE)

Flume 4 Flume 4 Jump to: navigation, search Basic Specifications Facility Name DeFrees Flume 4 Overseeing Organization Cornell University Hydrodynamics Hydrodynamic Testing Facility Type Flume Length(m) 20.0 Beam(m) 1.0 Depth(m) 1.0 Water Type Freshwater Towing Capabilities Towing Capabilities None Wavemaking Capabilities Wavemaking Capabilities None Channel/Tunnel/Flume Channel/Tunnel/Flume Yes Velocity(m/s) 2 Recirculating No Wind Capabilities Wind Capabilities Yes Wind Velocity Range(m/s) 14.1 Other Characteristics Sufficient fetch to generate wind waves Control and Data Acquisition Description National Instruments LabView and Mathworks Matlab DAQ systems Number of channels 64+ Bandwidth(kHz) 1000 Cameras Yes Number of Color Cameras 5 Description of Camera Types 1024 x 1024 x 12 bit to 60 fps, 491 x 656 x 8-bit to 100 fps, others

23

1.5-ft Wave Flume Facility | Open Energy Information  

Open Energy Info (EERE)

-ft Wave Flume Facility -ft Wave Flume Facility Jump to: navigation, search Basic Specifications Facility Name 1.5-ft Wave Flume Facility Overseeing Organization United States Army Corp of Engineers (ERDC) Hydrodynamic Testing Facility Type Flume Length(m) 45.1 Beam(m) 0.5 Depth(m) 0.9 Water Type Freshwater Cost(per day) Contact POC Towing Capabilities Towing Capabilities None Wavemaking Capabilities Wavemaking Capabilities Yes Maximum Wave Height(m) 0.2 Maximum Wave Height(m) at Wave Period(s) 10.0 Wave Period Range(s) 10.0 Current Velocity Range(m/s) 0.0 Programmable Wavemaking Yes Simulated Beach No Channel/Tunnel/Flume Channel/Tunnel/Flume Yes Recirculating No Wind Capabilities Wind Capabilities None Control and Data Acquisition Description Automated data acquisition and control system

24

11-ft Wave Flume Facility | Open Energy Information  

Open Energy Info (EERE)

ft Wave Flume Facility ft Wave Flume Facility Jump to: navigation, search Basic Specifications Facility Name Wave Flume Facility Overseeing Organization United States Army Corp of Engineers (ERDC) Hydrodynamic Testing Facility Type Flume Length(m) 77.4 Beam(m) 3.4 Depth(m) 1.8 Water Type Freshwater Cost(per day) Contact POC Towing Capabilities Towing Capabilities None Wavemaking Capabilities Wavemaking Capabilities Yes Maximum Wave Height(m) 0.4 Maximum Wave Height(m) at Wave Period(s) 10.0 Wave Period Range(s) 10.0 Current Velocity Range(m/s) 0.0 Programmable Wavemaking Yes Simulated Beach No Channel/Tunnel/Flume Channel/Tunnel/Flume None Wind Capabilities Wind Capabilities Yes Control and Data Acquisition Description Automated data acquisition and control system Cameras None

25

10-ft Wave Flume Facility | Open Energy Information  

Open Energy Info (EERE)

ft Wave Flume Facility ft Wave Flume Facility Jump to: navigation, search Basic Specifications Facility Name 10-ft Wave Flume Facility Overseeing Organization United States Army Corp of Engineers (ERDC) Hydrodynamic Testing Facility Type Flume Length(m) 63.4 Beam(m) 3.0 Depth(m) 1.5 Water Type Freshwater Cost(per day) Contact POC Towing Capabilities Towing Capabilities None Wavemaking Capabilities Wavemaking Capabilities Yes Maximum Wave Height(m) 0.5 Maximum Wave Height(m) at Wave Period(s) 10.0 Wave Period Range(s) 0.0 Current Velocity Range(m/s) 0.0 Programmable Wavemaking Yes Simulated Beach No Channel/Tunnel/Flume Channel/Tunnel/Flume Yes Recirculating No Wind Capabilities Wind Capabilities None Control and Data Acquisition Description Automated data acquisition and control system

26

6-ft Wave Flume Facility | Open Energy Information  

Open Energy Info (EERE)

Wave Flume Facility Wave Flume Facility Jump to: navigation, search Basic Specifications Facility Name 6-ft Wave Flume Facility Overseeing Organization United States Army Corp of Engineers (ERDC) Hydrodynamic Testing Facility Type Flume Length(m) 105.2 Beam(m) 1.8 Depth(m) 1.8 Water Type Freshwater Cost(per day) Contact POC Towing Capabilities Towing Capabilities None Wavemaking Capabilities Wavemaking Capabilities Yes Maximum Wave Height(m) 0.4 Maximum Wave Height(m) at Wave Period(s) 10.0 Wave Period Range(s) 10.0 Current Velocity Range(m/s) 0.0 Programmable Wavemaking Yes Simulated Beach No Channel/Tunnel/Flume Channel/Tunnel/Flume Yes Recirculating No Wind Capabilities Wind Capabilities None Control and Data Acquisition Description Automated data acquisition and control system

27

DeFrees Flume 2 | Open Energy Information  

Open Energy Info (EERE)

DeFrees Flume 2 DeFrees Flume 2 Jump to: navigation, search Basic Specifications Facility Name DeFrees Flume 2 Overseeing Organization Cornell University Hydrodynamics Hydrodynamic Testing Facility Type Flume Length(m) 8.0 Beam(m) 0.6 Depth(m) 0.6 Towing Capabilities Towing Capabilities None Wavemaking Capabilities Wavemaking Capabilities None Channel/Tunnel/Flume Channel/Tunnel/Flume Yes Velocity(m/s) 2 Recirculating No Wind Capabilities Wind Capabilities None Control and Data Acquisition Description National Instruments LabView and Mathworks Matlab DAQ systems Number of channels 64+ Bandwidth(kHz) 1000 Cameras Yes Number of Color Cameras 5 Description of Camera Types 1024 x 1024 x 12 bit to 60 fps, 491 x 656 x 8-bit to 100 fps, others Available Sensors Thermal, Ultrasonic Wave Height, Displacement, Acceleration, Turbulence, Pressure Range(psi), Flow, Acoustics, Velocity

28

DeFrees Flume 1 | Open Energy Information  

Open Energy Info (EERE)

Flume 1 Flume 1 Jump to: navigation, search Basic Specifications Facility Name DeFrees Flume 1 Overseeing Organization Cornell University Hydrodynamics Hydrodynamic Testing Facility Type Flume Length(m) 4.5 Beam(m) 0.6 Depth(m) 0.6 Water Type Freshwater Towing Capabilities Towing Capabilities None Wavemaking Capabilities Wavemaking Capabilities None Channel/Tunnel/Flume Channel/Tunnel/Flume Yes Velocity(m/s) 2 Recirculating No Wind Capabilities Wind Capabilities None Control and Data Acquisition Description National Instruments LabView and Mathworks Matlab DAQ systems Number of channels 64+ Bandwidth(kHz) 1000 Cameras Yes Number of Color Cameras 5 Description of Camera Types 1024 x 1024 x 12 bit to 60 fps, 491 x 656 x 8-bit to 100 fps, others Available Sensors Flow, Turbulence, Ultrasonic Wave Height, Acceleration, Pressure Range(psi), Acoustics, Velocity, Displacement, Thermal

29

Property:Real-Time | Open Energy Information  

Open Energy Info (EERE)

Real-Time Real-Time Jump to: navigation, search Property Name Real-Time Property Type String Pages using the property "Real-Time" Showing 25 pages using this property. (previous 25) (next 25) 1 1.5-ft Wave Flume Facility + No + 10-ft Wave Flume Facility + No + 11-ft Wave Flume Facility + No + 2 2-ft Flume Facility + No + 3 3-ft Wave Flume Facility + No + 5 5-ft Wave Flume Facility + No + 6 6-ft Wave Flume Facility + No + A Alden Large Flume + Yes + Alden Small Flume + Yes + Alden Tow Tank + Yes + Alden Wave Basin + Yes + B Breakwater Research Facility + No + Bucknell Hydraulic Flume + No + C Carderock 2-ft Variable Pressure Cavitation Water Tunnel + No + Carderock 3-ft Variable Pressure Cavitation Water Tunnel + No + Carderock Circulating Water Channel + No +

30

Category:Testing Facilities | Open Energy Information  

Open Energy Info (EERE)

Facilities Facilities Jump to: navigation, search This category is defined by the form Testing Facility. Subcategories This category has only the following subcategory. H [×] Hydrodynamic Testing Facility Type‎ 9 pages Pages in category "Testing Facilities" The following 82 pages are in this category, out of 82 total. 1 1.5-ft Wave Flume Facility 10-ft Wave Flume Facility 11-ft Wave Flume Facility 2 2-ft Flume Facility 3 3-ft Wave Flume Facility 5 5-ft Wave Flume Facility 6 6-ft Wave Flume Facility A Alden Large Flume Alden Small Flume Alden Tow Tank Alden Wave Basin B Breakwater Research Facility Bucknell Hydraulic Flume C Carderock 2-ft Variable Pressure Cavitation Water Tunnel Carderock 3-ft Variable Pressure Cavitation Water Tunnel Carderock Circulating Water Channel

31

Property:Cost(per day) | Open Energy Information  

Open Energy Info (EERE)

Cost(per day) Cost(per day) Jump to: navigation, search Property Name Cost(per day) Property Type String Pages using the property "Cost(per day)" Showing 25 pages using this property. (previous 25) (next 25) 1 1.5-ft Wave Flume Facility + Contact POC + 10-ft Wave Flume Facility + Contact POC + 11-ft Wave Flume Facility + Contact POC + 2 2-ft Flume Facility + Contact POC + 3 3-ft Wave Flume Facility + Contact POC + 5 5-ft Wave Flume Facility + Contact POC + 6 6-ft Wave Flume Facility + Contact POC + A Alden Large Flume + $5000/week + Alden Small Flume + $2500/week + Alden Tow Tank + Depends on study + Alden Wave Basin + Depends on study + B Breakwater Research Facility + Contact POC + Bucknell Hydraulic Flume + Depends on personnel requirements + C Carderock 2-ft Variable Pressure Cavitation Water Tunnel + Contact POC +

32

Property:Length(m) | Open Energy Information  

Open Energy Info (EERE)

Length(m) Length(m) Jump to: navigation, search This is a property of type String, and provides a complied list of the lengths of various hydrodynamic testing facilities. Pages using the property "Length(m)" Showing 25 pages using this property. (previous 25) (next 25) 1 1.5-ft Wave Flume Facility + 45.1 + 10-ft Wave Flume Facility + 63.4 + 11-ft Wave Flume Facility + 77.4 + 2 2-ft Flume Facility + 61.0 + 3 3-ft Wave Flume Facility + 45.1 + 5 5-ft Wave Flume Facility + 63.4 + 6 6-ft Wave Flume Facility + 105.2 + A Alden Large Flume + 24.4 + Alden Small Flume + 17.1 + Alden Tow Tank + 30.5 + Alden Wave Basin + 33.5 + B Breakwater Research Facility + 121.9 + Bucknell Hydraulic Flume + 9.8 + C Carderock Circulating Water Channel + 18.3 + Carderock Large Cavitation Tunnel + 13.1 +

33

Property:Wavemaking Capabilities | Open Energy Information  

Open Energy Info (EERE)

Wavemaking Capabilities Wavemaking Capabilities Jump to: navigation, search Property Name Wavemaking Capabilities Property Type String Pages using the property "Wavemaking Capabilities" Showing 25 pages using this property. (previous 25) (next 25) 1 1.5-ft Wave Flume Facility + Yes + 10-ft Wave Flume Facility + Yes + 11-ft Wave Flume Facility + Yes + 2 2-ft Flume Facility + Yes + 3 3-ft Wave Flume Facility + Yes + 5 5-ft Wave Flume Facility + Yes + 6 6-ft Wave Flume Facility + Yes + A Alden Large Flume + Yes + Alden Small Flume + Yes + Alden Tow Tank + None + Alden Wave Basin + Yes + B Breakwater Research Facility + Yes + Bucknell Hydraulic Flume + None + C Carderock 2-ft Variable Pressure Cavitation Water Tunnel + None + Carderock 3-ft Variable Pressure Cavitation Water Tunnel + None +

34

Property:Wind Capabilities | Open Energy Information  

Open Energy Info (EERE)

Capabilities Capabilities Jump to: navigation, search Property Name Wind Capabilities Property Type String Pages using the property "Wind Capabilities" Showing 25 pages using this property. (previous 25) (next 25) 1 1.5-ft Wave Flume Facility + None + 10-ft Wave Flume Facility + None + 11-ft Wave Flume Facility + Yes + 2 2-ft Flume Facility + None + 3 3-ft Wave Flume Facility + None + 5 5-ft Wave Flume Facility + None + 6 6-ft Wave Flume Facility + None + A Alden Large Flume + Yes + Alden Small Flume + Yes + Alden Tow Tank + Yes + Alden Wave Basin + Yes + B Breakwater Research Facility + None + Bucknell Hydraulic Flume + None + C Carderock 2-ft Variable Pressure Cavitation Water Tunnel + None + Carderock 3-ft Variable Pressure Cavitation Water Tunnel + None +

35

Property:Towing Capabilities | Open Energy Information  

Open Energy Info (EERE)

Towing Capabilities Towing Capabilities Jump to: navigation, search Property Name Towing Capabilities Property Type String Pages using the property "Towing Capabilities" Showing 25 pages using this property. (previous 25) (next 25) 1 1.5-ft Wave Flume Facility + None + 10-ft Wave Flume Facility + None + 11-ft Wave Flume Facility + None + 2 2-ft Flume Facility + None + 3 3-ft Wave Flume Facility + None + 5 5-ft Wave Flume Facility + None + 6 6-ft Wave Flume Facility + None + A Alden Large Flume + Yes + Alden Small Flume + None + Alden Tow Tank + Yes + Alden Wave Basin + None + B Breakwater Research Facility + None + Bucknell Hydraulic Flume + Yes + C Carderock 2-ft Variable Pressure Cavitation Water Tunnel + None + Carderock 3-ft Variable Pressure Cavitation Water Tunnel + None +

36

Property:Test Services | Open Energy Information  

Open Energy Info (EERE)

Services Services Jump to: navigation, search Property Name Test Services Property Type String Pages using the property "Test Services" Showing 25 pages using this property. (previous 25) (next 25) 1 1.5-ft Wave Flume Facility + Yes + 10-ft Wave Flume Facility + Yes + 11-ft Wave Flume Facility + Yes + 2 2-ft Flume Facility + Yes + 3 3-ft Wave Flume Facility + Yes + 5 5-ft Wave Flume Facility + Yes + 6 6-ft Wave Flume Facility + Yes + A Alden Large Flume + Yes + Alden Small Flume + Yes + Alden Tow Tank + Yes + Alden Wave Basin + Yes + B Breakwater Research Facility + None + Bucknell Hydraulic Flume + Yes + C Carderock 2-ft Variable Pressure Cavitation Water Tunnel + None + Carderock 3-ft Variable Pressure Cavitation Water Tunnel + None + Carderock Circulating Water Channel + None +

37

Property:Special Characteristics | Open Energy Information  

Open Energy Info (EERE)

Characteristics Characteristics Jump to: navigation, search Property Name Special Characteristics Property Type String Pages using the property "Special Characteristics" Showing 25 pages using this property. (previous 25) (next 25) 1 1.5-ft Wave Flume Facility + None + 10-ft Wave Flume Facility + None + 11-ft Wave Flume Facility + Yes + 2 2-ft Flume Facility + None + 3 3-ft Wave Flume Facility + None + 5 5-ft Wave Flume Facility + None + 6 6-ft Wave Flume Facility + Yes + A Alden Large Flume + Yes + Alden Small Flume + Yes + Alden Tow Tank + None + Alden Wave Basin + Yes + B Breakwater Research Facility + None + Bucknell Hydraulic Flume + Yes + C Carderock 2-ft Variable Pressure Cavitation Water Tunnel + None + Carderock 3-ft Variable Pressure Cavitation Water Tunnel + None +

38

5-ft Wave Flume Facility | Open Energy Information  

Open Energy Info (EERE)

5-ft Wave Flume Facility 5-ft Wave Flume Facility Overseeing Organization United States Army Corp of Engineers (ERDC) Hydrodynamic Testing Facility Type Flume Length(m) 63.4 Beam(m) 1.5 Depth(m) 1.5 Water Type Freshwater Cost(per day) Contact POC Towing Capabilities Towing Capabilities None Wavemaking Capabilities Wavemaking Capabilities Yes Maximum Wave Height(m) 0.5 Maximum Wave Height(m) at Wave Period(s) 10.0 Wave Period Range(s) 10.0 Current Velocity Range(m/s) 0.0 Programmable Wavemaking Yes Simulated Beach No Channel/Tunnel/Flume Channel/Tunnel/Flume Yes Recirculating No Wind Capabilities Wind Capabilities None Control and Data Acquisition Description Automated data acquisition and control system Cameras None Available Sensors Flow, Pressure Range(psi), Turbulence, Velocity, Wave Probe

39

L-Shaped Flume Wave Basin | Open Energy Information  

Open Energy Info (EERE)

L-Shaped Flume Wave Basin L-Shaped Flume Wave Basin Jump to: navigation, search Basic Specifications Facility Name L-Shaped Flume Wave Basin Overseeing Organization United States Army Corp of Engineers (ERDC) Hydrodynamic Testing Facility Type Wave Basin Length(m) 76.2 Beam(m) 15.2 Depth(m) 1.8 Water Type Freshwater Special Physical Features Contact POC Towing Capabilities Towing Capabilities None Wavemaking Capabilities Wavemaking Capabilities Yes Maximum Wave Height(m) 0.6 Maximum Wave Height(m) at Wave Period(s) 10.0 Wave Period Range(s) 10.0 Current Velocity Range(m/s) 0.0 Programmable Wavemaking Yes Wave Direction Uni-Directional Simulated Beach No Channel/Tunnel/Flume Channel/Tunnel/Flume None Wind Capabilities Wind Capabilities None Control and Data Acquisition Description Automated data acquisition and control sys

40

3-ft Wave Flume Facility | Open Energy Information  

Open Energy Info (EERE)

3-ft Wave Flume Facility 3-ft Wave Flume Facility Overseeing Organization United States Army Corp of Engineers (ERDC) Hydrodynamic Testing Facility Type Flume Length(m) 45.1 Beam(m) 0.9 Depth(m) 0.9 Water Type Freshwater Cost(per day) Contact POC Towing Capabilities Towing Capabilities None Wavemaking Capabilities Wavemaking Capabilities Yes Maximum Wave Height(m) 0.2 Maximum Wave Height(m) at Wave Period(s) 10.0 Wave Period Range(s) 10.0 Current Velocity Range(m/s) 0.0 Programmable Wavemaking Yes Simulated Beach No Channel/Tunnel/Flume Channel/Tunnel/Flume None Wind Capabilities Wind Capabilities None Control and Data Acquisition Description Automated data acquisition and control system Cameras None Available Sensors Flow, Pressure Range(psi), Turbulence, Velocity, Wave Probe

Note: This page contains sample records for the topic "bucknell hydraulic flume" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


41

Water Monitoring Flume Replaced at the Rocky Flats, Colorado, Site |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Water Monitoring Flume Replaced at the Rocky Flats, Colorado, Site Water Monitoring Flume Replaced at the Rocky Flats, Colorado, Site Water Monitoring Flume Replaced at the Rocky Flats, Colorado, Site October 22, 2013 - 11:01am Addthis What does this project do? Goal 1. Protect human health and the environment In August of this year the U.S. Department of Energy (DOE) Office of Legacy Management (LM) Rocky Flats, site took advantage of an existing water diversion structure that was no longer needed, to replace an aging water monitoring flume and avoid future repairs that could interrupt data collection. The flume for Rocky Flats Legacy Management Agreement (RFLMA) Point of Evaluation (POE) monitoring location GS10 in South Walnut Creek was located at the bottom of fairly steep channel banks. The bank on the south side shows localized slumping and sliding toward the creek and GS10. Although

42

Adjustable shear stress erosion and transport flume  

DOE Patents (OSTI)

A method and apparatus for measuring the total erosion rate and downstream transport of suspended and bedload sediments using an adjustable shear stress erosion and transport (ASSET) flume with a variable-depth sediment core sample. Water is forced past a variable-depth sediment core sample in a closed channel, eroding sediments, and introducing suspended and bedload sediments into the flow stream. The core sample is continuously pushed into the flow stream, while keeping the surface level with the bottom of the channel. Eroded bedload sediments are transported downstream and then gravitationally separated from the flow stream into one or more quiescent traps. The captured bedload sediments (particles and aggregates) are weighed and compared to the total mass of sediment eroded, and also to the concentration of sediments suspended in the flow stream.

Roberts, Jesse D. (Carlsbad, NM); Jepsen, Richard A. (Carlsbad, NM)

2002-01-01T23:59:59.000Z

43

Property:Testing Facilities Overseen | Open Energy Information  

Open Energy Info (EERE)

Testing Facilities Overseen Testing Facilities Overseen Jump to: navigation, search This is a property of type Page and uses the Testing Facility form Pages using the property "Testing Facilities Overseen" Showing 25 pages using this property. A Alden Research Laboratory, Inc + Alden Tow Tank +, Alden Wave Basin +, Alden Small Flume +, ... B Bucknell University + Bucknell Hydraulic Flume + C Cornell University Hydrodynamics + DeFrees Flume 1 +, DeFrees Flume 2 +, DeFrees Flume 3 +, ... M Massachusetts Institute of Technology Hydrodynamics + MIT Tow Tank + O Ohmsett + Ohmsett Tow Tank + Oregon State University Hydrodynamics + Hinsdale Wave Basin 1 +, Hinsdale Wave Basin 2 + P Pennsylvania State University Hydrodynamics + Penn Reverberant Tank +, Penn Small Water Tunnel +, Penn Large Water Tunnel +

44

DeFrees Flume 3 | Open Energy Information  

Open Energy Info (EERE)

Basic Specifications Basic Specifications Facility Name DeFrees Flume 3 Overseeing Organization Cornell University Hydrodynamics Hydrodynamic Testing Facility Type Flume Length(m) 15.0 Beam(m) 2.0 Depth(m) 0.6 Water Type Freshwater Towing Capabilities Towing Capabilities None Wavemaking Capabilities Wavemaking Capabilities None Channel/Tunnel/Flume Channel/Tunnel/Flume Yes Velocity(m/s) 2 Recirculating No Wind Capabilities Wind Capabilities None Control and Data Acquisition Description National Instruments LabView and Mathworks Matlab DAQ systems Number of channels 64+ Cameras Yes Number of Color Cameras 5 Description of Camera Types 1024 x 1024 x 12 bit to 60 fps, 491 x 656 x 8-bit to 100 fps, others Available Sensors Acceleration, Acoustics, Pressure Range(psi), Velocity, Displacement, Turbulence, Flow, Ultrasonic Wave Height, Thermal

45

Gravity surface wave turbulence in a laboratory flume  

E-Print Network (OSTI)

We present experimental results for water wave turbulence excited by piston-like programmed wavemakers in a water flume with horisontal dimensions 6x12x1.5 meters. Our main finding is that for a wide range of excitation amplitudes the energy spectrum has a power-law scaling, $E_\\omega \\sim \\omega^{-\

Petr Denissenko; Sergei Lukaschuk; Sergey Nazarenko

2006-10-08T23:59:59.000Z

46

Property:Types of Co-located facilities | Open Energy Information  

Open Energy Info (EERE)

Types of Co-located facilities Types of Co-located facilities Jump to: navigation, search Property Name Types of Co-located facilities Property Type Text Pages using the property "Types of Co-located facilities" Showing 25 pages using this property. (previous 25) (next 25) A Alden Large Flume + Co-located fish holding facility is ideal for evaluating the impacts of generation devices on fish Alden Small Flume + Co-located fish holding facility is ideal for evaluating the impacts of generation devices on fish. B Bucknell Hydraulic Flume + Sediment-recirculating flume, 40-ft by 10-ft wide, exploration of sediment transport/deposition and river morphology impact. C Conte Large Flume + Physiology, ecology, behavior laboratories Conte Small Flume + Physiology, ecology, behavior laboratories

47

Property:Velocity(m/s) | Open Energy Information  

Open Energy Info (EERE)

Velocity(m/s) Velocity(m/s) Jump to: navigation, search Property Name Velocity(m/s) Property Type String Pages using the property "Velocity(m/s)" Showing 21 pages using this property. A Alden Small Flume + >0.9 + B Bucknell Hydraulic Flume + 2.7 + C Carderock 2-ft Variable Pressure Cavitation Water Tunnel + 17 + Carderock 3-ft Variable Pressure Cavitation Water Tunnel + 25.8 + Carderock Circulating Water Channel + 5.2 + Carderock Large Cavitation Tunnel + 18 + Carderock Subsonic Wind Tunnel + 83.8 + D DeFrees Flume 1 + 2 + DeFrees Flume 2 + 2 + DeFrees Flume 3 + 2 + DeFrees Flume 4 + 2 + M MHL Free Surface Channel + 2 + MHL High Speed Cavitation + 25.9 + MHL Student Tunnel + 4.6 + P Penn Large Water Tunnel + 16.8 + Penn Small Water Tunnel + 21 + S SAFL Channel + 6.1 +

48

HYDRAULIC FRACTURING  

NLE Websites -- All DOE Office Websites (Extended Search)

HYDRAULIC FRACTURING In addition to the recovery processes featured in this series of drawings, hydraulic fracturing is included as an example of technologies that contribute to...

49

Property:Integrated Display/Graphics | Open Energy Information  

Open Energy Info (EERE)

Display/Graphics Display/Graphics Jump to: navigation, search Property Name Integrated Display/Graphics Property Type Text Pages using the property "Integrated Display/Graphics" Showing 22 pages using this property. A Alden Large Flume + Lab View, Test Point Alden Small Flume + Lab View, Test Point Alden Tow Tank + Lab View, Test Point Alden Wave Basin + Lab View, Test Point B Bucknell Hydraulic Flume + Microsoft Windows based systems C Conte Large Flume + Conventional PC and video displays; TecPlot Conte Small Flume + Conventional PC and video displays; TecPlot D Davidson Laboratory Tow Tank + Standard PC-based tools H Haynes Tow Tank + National Instruments LabView Haynes Wave Basin + National Instruments LabView Hinsdale Wave Basin 1 + Remote telepresence and experiment participation as part of George E. Brown Jr. Network for Earthquake Engineering Simulation (NEES)

50

Property:Beam(m) | Open Energy Information  

Open Energy Info (EERE)

Beam(m) Beam(m) Jump to: navigation, search This is a property of type String. Pages using the property "Beam(m)" Showing 25 pages using this property. (previous 25) (next 25) 1 1.5-ft Wave Flume Facility + 0.5 + 10-ft Wave Flume Facility + 3.0 + 11-ft Wave Flume Facility + 3.4 + 2 2-ft Flume Facility + 0.6 + 3 3-ft Wave Flume Facility + 0.9 + 5 5-ft Wave Flume Facility + 1.5 + 6 6-ft Wave Flume Facility + 1.8 + A Alden Large Flume + 6.1 + Alden Small Flume + 1.8 + Alden Tow Tank + 1.2 + Alden Wave Basin + 21.3 + B Breakwater Research Facility + 55.5 + Bucknell Hydraulic Flume + 1.2 + C Carderock 2-ft Variable Pressure Cavitation Water Tunnel + 0.6 + Carderock 3-ft Variable Pressure Cavitation Water Tunnel + 0.7 + Carderock Circulating Water Channel + 6.7 +

51

Property:Depth(m) | Open Energy Information  

Open Energy Info (EERE)

Depth(m) Depth(m) Jump to: navigation, search This is a property of type String. Pages using the property "Depth(m)" Showing 25 pages using this property. (previous 25) (next 25) 1 1.5-ft Wave Flume Facility + 0.9 + 10-ft Wave Flume Facility + 1.5 + 11-ft Wave Flume Facility + 1.8 + 2 2-ft Flume Facility + 1.8 + 3 3-ft Wave Flume Facility + 0.9 + 5 5-ft Wave Flume Facility + 1.5 + 6 6-ft Wave Flume Facility + 1.8 + A Alden Large Flume + 3.0 + Alden Small Flume + 1.8 + Alden Tow Tank + 1.2 + Alden Wave Basin + 1.2 + B Breakwater Research Facility + 0.8 + Bucknell Hydraulic Flume + 0.6 + C Carderock 2-ft Variable Pressure Cavitation Water Tunnel + 0.6 + Carderock 3-ft Variable Pressure Cavitation Water Tunnel + 0.7 + Carderock Circulating Water Channel + 2.7 +

52

HYDRAULIC SERVO  

DOE Patents (OSTI)

A hydraulic servo is designed in which a small pressure difference produced at two orifices by an electrically operated flapper arm in a constantly flowing hydraulic loop is hydraulically amplified by two constant flow pumps, two additional orifices, and three unconnected ball pistons. Two of the pistons are of one size and operate against the additional orifices, and the third piston is of a different size and operates between and against the first two pistons. (AEC)

Wiegand, D.E.

1962-05-01T23:59:59.000Z

53

HYDRAULIC FLUIDS  

E-Print Network (OSTI)

This fact sheet answers the most frequently asked health questions (FAQs) about hydraulic fluids. For more information, call the ATSDR Information Center at 1-888-422-8737. This fact sheet is one in a series of summaries about hazardous substances and their health effects. This information is important because this substance may harm you. The effects of exposure to any hazardous substance depend on the dose, the duration, how you are exposed, personal traits and habits, and whether other chemicals are present. HIGHLIGHTS: Exposure to hydraulic fluids occurs mainly in the workplace. Drinking certain types of hydraulic fluids can cause death in humans, and swallowing or inhaling certain types of hydraulic fluids has caused nerve damage in animals. Contact with some types of hydraulic fluids can irritate your skin or eyes. These substances have been found in at least 10 of the 1,428 National Priorities List sites identified by the Environmental Protection Agency (EPA). What are hydraulic fluids? (Pronounced ?????????????????) Hydraulic fluids are a large group of liquids made of many kinds of chemicals. They are used in automobile automatic

unknown authors

1997-01-01T23:59:59.000Z

54

Hydraulic Fracturing (Vermont)  

Energy.gov (U.S. Department of Energy (DOE))

Vermont prohibits hydraulic fracturing or the collection, storage, or treatment of wastewater from hydraulic fracturing

55

Channel responses to varying sediment input: A flume experiment modeled after Redwood Creek, California  

E-Print Network (OSTI)

of channel morphology, slope, and armoring in a gravel-bed channel. Under moderate sediment increases was evacuated from the flume and the bed became armored. Under high sediment feed, channel bed elevation, the channel became armored and channel incision ceased before all excess sediment was removed. Selective

56

Corporation Commission Hydraulic FracturingHydraulic Fracturing  

E-Print Network (OSTI)

Corporation Commission Hydraulic FracturingHydraulic Fracturing Joint Committee on Energy Commission What is Hydraulic Fracturing d H D It W k?and How Does It Work? · Stimulates a well to increase by Stanolind Oil Company. 2 #12;Kansas Corporation Commission Are Hydraulic Fracture Jobs Performed in Kansas

Peterson, Blake R.

57

Property:Other Data Capabilites | Open Energy Information  

Open Energy Info (EERE)

Data Capabilites Data Capabilites Jump to: navigation, search Property Name Other Data Capabilites Property Type Text Pages using the property "Other Data Capabilites" Showing 12 pages using this property. B Bucknell Hydraulic Flume + Invasive flow diagnostics, Acoustic Doppler Velocimeter (ADV) and data analysis C Conte Large Flume + Conventional PC computing & statistical packages; 2D & 3D CFD modeling Conte Small Flume + Conventional PC computing & statistical packages; 2D & 3D CFD modeling H Hinsdale Wave Basin 1 + Online data archiving and retrieval as pat of George E. Brown Jr. Network for Earthquake Engineering Simulation (NEES) Hinsdale Wave Basin 2 + Online data archiving and retrieval as pat of George E. Brown Jr. Network for Earthquake Engineering Simulation (NEES)

58

Hydraulic fracturing-1  

Science Conference Proceedings (OSTI)

This book contains papers on hydraulic fracturing. Topics covered include: An overview of recent advances in hydraulic fracturing technology; Containment of massive hydraulic fracture; and Fracturing with a high-strength proppant.

Not Available

1990-01-01T23:59:59.000Z

59

Environmental Effects of Hydrokinetic Turbines on Fish: Desktop and Laboratory Flume Studies  

SciTech Connect

This collection of three reports describes desktop and laboratory flume studies that provide information to support assessment of the potential for injury and mortality of fish that encounter hydrokinetic turbines of various designs installed in tidal and river environments. Behavioral responses to turbine exposure also are investigated to support assessment of the potential for disruptions to upstream and downstream movements of fish. The studies: (1) conducted an assessment of potential injury mechanisms using available data from studies with conventional hydro turbines; (2) developed theoretical models for predicting blade strike probabilities and mortality rates; and (3) performed flume testing with three turbine designs and several fish species and size groups in two laboratory flumes to estimate survival rates and document fish behavior. The project yielded three reports which this document comprises. The three constituent documents are addressed individually below Fish Passage Through Turbines: Application of Conventional Hydropower Data to Hydrokinetic Technologies Fish passing through the blade sweep of a hydrokinetic turbine experience a much less harsh physical environment than do fish entrained through conventional hydro turbines. The design and operation of conventional turbines results in high flow velocities, abrupt changes in flow direction, relatively high runner rotational and blade speeds, rapid and significant changes in pressure, and the need for various structures throughout the turbine passageway that can be impacted by fish. These conditions generally do not occur or are not significant factors for hydrokinetic turbines. Furthermore, compared to conventional hydro turbines, hydrokinetic turbines typically produce relatively minor changes in shear, turbulence, and pressure levels from ambient conditions in the surrounding environment. Injuries and mortality from mechanical injuries will be less as well, mainly due to low rotational speeds and strike velocities, and an absence of structures that can lead to grinding or abrasion injuries. Additional information is needed to rigorously assess the nature and magnitude of effects on individuals and populations, and to refine criteria for design of more fish-friendly hydrokinetic turbines. Evaluation of Fish Injury and Mortality Associated with Hydrokinetic Turbines Flume studies exposed fish to two hydrokinetic turbine designs to determine injury and survival rates and to assess behavioral responses. Also, a theoretical model developed for predicting strike probability and mortality of fish passing through conventional hydro turbines was adapted for use with hydrokinetic turbines and applied to the two designs evaluated during flume studies. The flume tests were conducted with the Lucid spherical turbine (LST), a Darrieus-type (cross flow) turbine, and the Welka UPG, an axial flow propeller turbine. Survival rates for rainbow trout tested with the LST were greater than 98% for both size groups and approach velocities evaluated. Turbine passage survival rates for rainbow trout and largemouth bass tested with the Welka UPG were greater than 99% for both size groups and velocities evaluated. Injury rates of turbine-exposed fish were low with both turbines and generally comparable to control fish. Video observations of the LST demonstrated active avoidance of turbine passage by a large proportion fish despite being released about 25 cm upstream of the turbine blade sweep. Video observations from behavior trials indicated few if any fish pass through the turbines when released farther upstream. The theoretical predictions for the LST indicated that strike mortality would begin to occur at an ambient current velocity of about 1.7 m/s for fish with lengths greater than the thickness of the leading edge of the blades. As current velocities increase above 1.7 m/s, survival was predicted to decrease for fish passing through the LST, but generally remained high (greater than 90%) for fish less than 200 mm in length. Strike mortality was not predicted to occur duri

Jacobson, Paul T. [Electric Power Research Institute; Amaral, Stephen V. [Alden Research Laboratory; Castro-Santos, Theodore [U.S. Geological Survey; Giza, Dan [Alden Research Laboratory; Haro, Alexander J. [U.S. Geological Survey; Hecker, George [Alden Research Laboratory; McMahon, Brian [Alden Research Laboratory; Perkins, Norman [Alden Research Laboratory; Pioppi, Nick [Alden Research Laboratory

2012-12-31T23:59:59.000Z

60

Environmental Effects of Hydrokinetic Turbines on Fish: Desktop and Laboratory Flume Studies  

DOE Green Energy (OSTI)

Flume studies exposed fish to two hydrokinetic turbine designs to determine injury and survival rates and to assess behavioral responses. Also, a theoretical model developed for predicting strike probability and mortality of fish passing through conventional hydro turbines was adapted for use with hydrokinetic turbines and applied to the two designs evaluated during flume studies. The flume tests were conducted with the Lucid spherical turbine (LST), a Darrieus-type (cross flow) turbine, and the Welka UPG, an axial flow propeller turbine. Survival rates for rainbow trout tested with the LST were greater than 98% for both size groups and approach velocities evaluated. Turbine passage survival rates for rainbow trout and largemouth bass tested with the Welka UPG were greater than 99% for both size groups and velocities evaluated. Injury rates of turbine-exposed fish were low with both turbines and generally comparable to control fish. Video observations of the LST demonstrated active avoidance of turbine passage by a large proportion fish despite being released about 25 cm upstream of the turbine blade sweep. Video observations from behavior trials indicated few if any fish pass through the turbines when released farther upstream. The theoretical predictions for the LST indicated that strike mortality would begin to occur at an ambient current velocity of about 1.7 m/s for fish with lengths greater than the thickness of the leading edge of the blades. As current velocities increase above 1.7 m/s, survival was predicted to decrease for fish passing through the LST, but generally remained high (greater than 90%) for fish less than 200 mm in length. Strike mortality was not predicted to occur duri

Jacobson, Paul T. [Electric Power Research Institute; Amaral, Stephen V. [Alden Research Laboratory; Castro-Santos, Theodore [U.S. Geological Survey; Giza, Dan [Alden Research Laboratory; Haro, Alexander J. [U.S. Geological Survey; Hecker, George [Alden Research Laboratory; McMahon, Brian [Alden Research Laboratory; Perkins, Norman [Alden Research Laboratory; Pioppi, Nick [Alden Research Laboratory

2012-12-31T23:59:59.000Z

Note: This page contains sample records for the topic "bucknell hydraulic flume" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


61

Property:Maximum Velocity(m/s) | Open Energy Information  

Open Energy Info (EERE)

Velocity(m/s) Velocity(m/s) Jump to: navigation, search Property Name Maximum Velocity(m/s) Property Type String Pages using the property "Maximum Velocity(m/s)" Showing 25 pages using this property. (previous 25) (next 25) A Alden Large Flume + 0.9 + B Bucknell Hydraulic Flume + 2.7 + C Carderock Maneuvering & Seakeeping Basin + 7.2 + Carderock Rotating Arm Tow Tank + 25.8 + Carderock Tow Tank 1 + 9.3 + Carderock Tow Tank 2 + 10.3 + Carderock Tow Tank 3 + 25.8 + Chase Tow Tank + 2.5 + D Davidson Laboratory Tow Tank + 18.3 + H Haynes Tow Tank + 1.8 + I Ice Towing Tank + 0.5 + L Lakefront Tow Tank + 2.7 + M MHL Free Surface Channel + 2 + MHL High Speed Cavitation + 25.9 + MHL Tow Tank + 6.7 + MIT Tow Tank + 1.5 + MMA Tugboat/ Barge/ Vessel + 5.1 + Maine Tow Tank + 3 +

62

Downhole hydraulic seismic generator  

DOE Patents (OSTI)

A downhole hydraulic seismic generator system for transmitting energy wave vibrations into earth strata surrounding a borehole. The system contains an elongated, unitary housing operably connected to a well head aboveground by support and electrical cabling, and contains clamping apparatus for selectively clamping the housing to the walls of the borehole. The system further comprises a hydraulic oscillator containing a double-actuating piston whose movement is controlled by an electro-servovalve regulating a high pressure hydraulic fluid flow into and out of upper and lower chambers surrounding the piston. The spent hydraulic fluid from the hydraulic oscillator is stored and pumped back into the system to provide high pressure fluid for conducting another run at the same, or a different location within the borehole.

Gregory, Danny L. (Corrales, NM); Hardee, Harry C. (Albuquerque, NM); Smallwood, David O. (Albuquerque, NM)

1992-01-01T23:59:59.000Z

63

Downhole hydraulic seismic generator  

DOE Patents (OSTI)

A downhole hydraulic seismic generator system for transmitting energy wave vibrations into earth strata surrounding a borehole. The system contains an elongated, unitary housing operably connected to a well head aboveground by support and electrical cabling, and contains clamping apparatus for selectively clamping the housing to the walls of the borehole. The system further comprises a hydraulic oscillator containing a double-actuating piston whose movement is controlled by an electro-servovalve regulating a high pressure hydraulic fluid flow into and out of upper and lower chambers surrounding the piston. The spent hydraulic fluid from the hydraulic oscillator is stored and pumped back into the system to provide high pressure fluid for conducting another run at the same, or a different location within the borehole. 4 figs.

Gregory, D.L.; Hardee, H.C.; Smallwood, D.O.

1990-01-01T23:59:59.000Z

64

Downhole hydraulic seismic generator  

DOE Patents (OSTI)

A downhole hydraulic seismic generator system for transmitting energy wave vibrations into earth strata surrounding a borehole. The system contains an elongated, unitary housing operably connected to a well head aboveground by support and electrical cabling, and contains clamping apparatus for selectively clamping the housing to the walls of the borehole. The system further comprises a hydraulic oscillator containing a double-actuating piston whose movement is controlled by an electro-servovalve regulating a high pressure hydraulic fluid flow into and out of upper and lower chambers surrounding the piston. The spent hydraulic fluid from the hydraulic oscillator is stored and pumped back into the system to provide high pressure fluid for conducting another run at the same, or a different location within the borehole. 4 figs.

Gregory, D.L.; Hardee, H.C.; Smallwood, D.O.

1990-12-31T23:59:59.000Z

65

Hydraulic Fracturing in Particulate Materials .  

E-Print Network (OSTI)

??For more than five decades, hydraulic fracturing has been widely used to enhance oil and gas production. Hydraulic fracturing in solid materials (e.g., rock) has (more)

Chang, Hong

2004-01-01T23:59:59.000Z

66

Hydraulic Institute Member Benefits  

Energy.gov (U.S. Department of Energy (DOE))

As the developer of the universally acclaimed ANSI/HI Pump Standards, a key reference for pump knowledge and end-user specifications, the Hydraulic nstitute (HI) provides its members with timely...

67

Suspensions in hydraulic fracturing  

Science Conference Proceedings (OSTI)

Suspensions or slurries are widely used in well stimulation and hydraulic fracturing processes to enhance the production of oil and gas from the underground hydrocarbon-bearing formation. The success of these processes depends significantly upon having a thorough understanding of the behavior of suspensions used. Therefore, the characterization of suspensions under realistic conditions, for their rheological and hydraulic properties, is very important. This chapter deals with the state-of-the-art hydraulic fracturing suspension technology. Specifically it deals with various types of suspensions used in well stimulation and fracturing processes, their rheological characterization and hydraulic properties, behavior of suspensions in horizontal wells, review of proppant settling velocity and proppant transport in the fracture, and presently available measurement techniques for suspensions and their merits. Future industry needs for better understanding of the complex behavior of suspensions are also addressed. 74 refs., 21 figs., 1 tab.

Shah, S.N. [Univ. of Oklahoma, Norman, OK (United States)

1996-12-31T23:59:59.000Z

68

Self-potential observations during hydraulic fracturing  

E-Print Network (OSTI)

potential measurements during hydraulic fracturing of BunterMonitoring during hydraulic fracturing using the TG-2 well,fracture processes in hydraulic fracturing, Quarterly Report

Moore, Jeffrey R.; Glaser, Steven D.

2008-01-01T23:59:59.000Z

69

Self-potential observations during hydraulic fracturing  

E-Print Network (OSTI)

potential measurements during hydraulic fracturing of BunterSP response during hydraulic fracturing. Citation: Moore, J.observations during hydraulic fracturing, J. Geophys. Res. ,

Moore, J R; Glaser, Steven D

2007-01-01T23:59:59.000Z

70

Self-potential observations during hydraulic fracturing  

E-Print Network (OSTI)

and T. W. Keech (1977), Hydraulic fracture mapping usingpotential measurements during hydraulic fracturing of BunterSP Monitoring during hydraulic fracturing using the TG-2

Moore, Jeffrey R.; Glaser, Steven D.

2008-01-01T23:59:59.000Z

71

Self-potential observations during hydraulic fracturing  

E-Print Network (OSTI)

and T. W. Keech (1977), Hydraulic fracture mapping usingpotential measurements during hydraulic fracturing of Bunterbetween electrical and hydraulic flow patterns from rock

Moore, J R; Glaser, Steven D

2007-01-01T23:59:59.000Z

72

HYDRAULIC CEMENT PREPARATION FROM LURGI SPENT SHALE  

E-Print Network (OSTI)

P. , "Investigations on hydraulic cement from spent oilCO, April 16-18, 1980 HYDRAULIC CEMENT PREPARATION FROMUniversity of California. HYDRAULIC CEMENT PREPARATION FROM

Mehta, P.K.

2013-01-01T23:59:59.000Z

73

Hydraulic Fracturing Poster | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Hydraulic Fracturing Poster Hydraulic Fracturing Poster Educational poster graphically displaying the key components of hydraulic fracturing. Teachers: If you would like hard...

74

HYDRAULIC SERVO CONTROL MECHANISM  

DOE Patents (OSTI)

A hydraulic servo control mechanism of compact construction and low fluid requirements is described. The mechanism consists of a main hydraulic piston, comprising the drive output, which is connected mechanically for feedback purposes to a servo control piston. A control sleeve having control slots for the system encloses the servo piston, which acts to cover or uncover the slots as a means of controlling the operation of the system. This operation permits only a small amount of fluid to regulate the operation of the mechanism, which, as a result, is compact and relatively light. This mechanism is particuiarly adaptable to the drive and control of control rods in nuclear reactors. (auth)

Hussey, R.B.; Gottsche, M.J. Jr.

1963-09-17T23:59:59.000Z

75

International Collaborative Tsunamis, Storm Surge, and Wave-Structure Interaction Research Opportunities Using the Oregon State Multidirectional Wave Basin and Large Wave Flume  

E-Print Network (OSTI)

Opportunities Using the Oregon State Multidirectional Wave Basin and Large Wave Flume Solomon Yim1 , Harry Yeh2 wave 0.8m high in a water depth of 1m. Its waveboards are controlled on an individual basis, making) water depth. The Wave Research Laboratory supports high resolution, large-scale experiments with dense

Yim, Solomon C.

76

Hydraulic mining method  

DOE Patents (OSTI)

A hydraulic mining method includes drilling a vertical borehole into a pitched mineral vein and a slant borehole along the footwall of the vein to intersect the vertical borehole. Material is removed from the mineral vein by a fluid jet stream and the resulting slurry flows down the footwall borehole into the vertical borehole from where it is pumped upwardly therethrough to the surface.

Huffman, L.H.; Knoke, G.S.

1984-06-15T23:59:59.000Z

77

Cradle modification for hydraulic ram  

DOE Green Energy (OSTI)

The analysis of the cradle hydraulic system considers stress, weld strength, and hydraulic forces required to lift and support the cradle/pump assembly. The stress and weld strength of the cradle modifications is evaluated to ensure that they meet the requirements of the American Institute for Steel Construction (AISC 1989). The hydraulic forces are evaluated to ensure that the hydraulic system is capable of rotating the cradle and pump assembly to the vertical position (between 70{degrees} and 90{degrees}).

Koons, B.M.

1995-03-02T23:59:59.000Z

78

Dynamic model for hydraulic dissipators  

Science Conference Proceedings (OSTI)

The authors propose a mathematical model of a hydraulic link with energy dissipation, the device working reversibly to the alternative traction and compression movement. The dynamic behavior of the energy hydraulic dissipater depends on the instantaneous ... Keywords: dissipater's control, dynamic behavior, hydraulic dissipater, mathematical model

Adrian S. Axinti; Gavril Axinti

2009-03-01T23:59:59.000Z

79

Hydraulic manipulator research at ORNL  

Science Conference Proceedings (OSTI)

Recently, task requirements have dictated that manipulator payload capacity increase to accommodate greater payloads, greater manipulator length, and larger environmental interaction forces. General tasks such as waste storage tank cleanup and facility dismantlement and decommissioning require manipulator life capacities in the range of hundreds of pounds rather than tens of pounds. To meet the increased payload capacities demanded by present-day tasks, manipulator designers have turned once again to hydraulics as a means of actuation. In order to successfully design, build, and deploy a new hydraulic manipulator (or subsystem), sophisticated modeling, analysis, and control experiments are usually needed. Oak Ridge National Laboratory (ORNL) has a history of projects that incorporate hydraulics technology, including mobile robots, teleoperated manipulators, and full-scale construction equipment. In addition, to support the development and deployment of new hydraulic manipulators, ORNL has outfitted a significant experimental laboratory and has developed the software capability for research into hydraulic manipulators, hydraulic actuators, hydraulic systems, modeling of hydraulic systems, and hydraulic controls. The purpose of this article is to describe the past hydraulic manipulator developments and current hydraulic manipulator research capabilities at ORNL. Included are example experimental results from ORNL`s flexible/prismatic test stand.

Kress, R.L.; Jansen, J.F. [Oak Ridge National Lab., TN (United States); Love, L.J. [Oak Ridge Inst. for Science and Education, TN (United States)

1997-03-01T23:59:59.000Z

80

Reactor Thermal-Hydraulics  

NLE Websites -- All DOE Office Websites (Extended Search)

Thermal-Hydraulics Thermal-Hydraulics Dr. Tanju Sofu, Argonne National Laboratory In a power reactor, the energy produced in fission reaction manifests itself as heat to be removed by a coolant and utilized in a thermodynamic energy conversion cycle to produce electricity. A simplified schematic of a typical nuclear power plant is shown in the diagram below. Primary coolant loop Steam Reactor Heat exchanger Primary pump Secondary pump Condenser Turbine Water Although this process is essentially the same as in any other steam plant configuration, the power density in a nuclear reactor core is typically four orders of magnitude higher than a fossil fueled plant and therefore it poses significant heat transfer challenges. Maximum power that can be obtained from a nuclear reactor is often limited by the

Note: This page contains sample records for the topic "bucknell hydraulic flume" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


81

Hydraulic properties of asphalt concrete.  

E-Print Network (OSTI)

??This research has applied standard unsaturated flow models and laboratory methods common to soil analysis, to characterize the hydraulic properties of asphalt concrete. Wetting and (more)

Pease, Ronald Eric

2010-01-01T23:59:59.000Z

82

Lab Scale Hydraulic Parameter Estimation .  

E-Print Network (OSTI)

??Hydraulic tomography has been tested at the field scale, lab scale and in synthetic experiments. Recently Illman and Berg have conducted studies at the lab (more)

Hartz, Andrew Scott

2011-01-01T23:59:59.000Z

83

LLNL-PROC-491799 Hydraulic  

NLE Websites -- All DOE Office Websites (Extended Search)

PROC-491799 Hydraulic fracturing: insights from field, lab, and numerical studies S. Johnson, P. Fu, R. Settgast, S. Walsh August 3, 2011 Fall Meeting of the American Geophysical...

84

ENVE 417 HYDRAULIC DESIGN TOPIC SYLLABUS  

E-Print Network (OSTI)

. John Wiley & Sons, Inc. New York, NY. 2001. Hydraulic Design Handbook, Larry W. Mays, McGraw-Hill, New of Applied Hydraulics (properties of fluids and energy equation Review of Applied Hydraulics (pipe, open

Clark, Shirley E.

85

Hydraulically actuated well shifting tool  

SciTech Connect

This patent describes a hydraulically actuated shifting tool for actuating a sliding member in a well tool. It comprises: a housing having a hydraulic fluid bore therein; shifting dog means positioned on the housing for movement away and toward the housing; locking dog means positioned on the housing for movement away and toward the body; shifting dog hydraulic actuating means in fluid communication with the bore for causing engagement of the shifting dogs with the sliding member; locking dog hydraulic actuating means in communication with the bore for causing engagement of the locking dogs with the locking means; and hydraulic shifting means in communication with the bore for causing relative movement between the shifting dog means and the locking dog means for shifting the sliding sleeve.

Roth, B.A.

1992-10-20T23:59:59.000Z

86

Tidal Hydraulic Generators Ltd | Open Energy Information  

Open Energy Info (EERE)

Hydraulic Generators Ltd Jump to: navigation, search Name Tidal Hydraulic Generators Ltd Address 14 Thislesboon Drive Place Mumbles Zip SA3 4HY Sector Marine and Hydrokinetic Phone...

87

Some Fundamental Mechanisms of Hydraulic Fracturing .  

E-Print Network (OSTI)

??This dissertation focuses mainly on three topics: (1) mixed-mode branching and segmentation of hydraulic fractures in brittle materials, (2) hydraulic fracture propagation in particulate materials, (more)

Wu, Ruiting

2006-01-01T23:59:59.000Z

88

Electrokinetic high pressure hydraulic system  

DOE Patents (OSTI)

A compact high pressure hydraulic pump having no moving mechanical parts for converting electric potential to hydraulic force. The electrokinetic pump, which can generate hydraulic pressures greater than 2500 psi, can be employed to compress a fluid, either liquid or gas, and manipulate fluid flow. The pump is particularly useful for capillary-base systems. By combining the electrokinetic pump with a housing having chambers separated by a flexible member, fluid flow, including high pressure fluids, is controlled by the application of an electric potential, that can vary with time.

Paul, Phillip H. (Livermore, CA); Rakestraw, David J. (Fremont, CA)

2000-01-01T23:59:59.000Z

89

Production Hydraulic Packer Field Test  

Science Conference Proceedings (OSTI)

In October 1999, the Rocky Mountain Oilfield Testing Center and Halliburton Energy Services cooperated on a field test of Halliburton's new Production Hydraulic Packer technology on Well 46-TPX-10 at Naval Petroleum Reserve No. 3 near Casper, WY. Performance of the packer was evaluated in set and unset operations. The packer's ability to seal the annulus between the casing and tubing was hydraulically tested and the results were recorded.

Schneller, Tricia; Salas, Jose

2000-06-30T23:59:59.000Z

90

Modeling Hydraulic Responses to Meteorological Forcing: from Canopy to Aquifer  

E-Print Network (OSTI)

equations for some soil hydraulicproperties. WaterModelingHydraulicResponsestoMeteorologicalForcing:CA94720 lpan@lbl.gov ModelingHydraulicResponsesto

Pan, Lehua; Jin, Jiming; Miller, Norman; Wu, Yu-Shu; Bodvarsson, Gudmundur

2008-01-01T23:59:59.000Z

91

HYDRAULIC CALCULATIONS FOR A MODIFIED IN-SITU RETORT  

E-Print Network (OSTI)

LBL-1 0431 UC-91 HYDRAULIC CALCULATIONS FOR A MODIFIED IN-REFERENCES . . , . HYDRAULIC CALCULATIONS FOR ACalifomia. LBL-10431 HYDRAULIC CALCULATIONS FOR A MODIFIED

Hall, W.G.

2012-01-01T23:59:59.000Z

92

Hydraulic properties of adsorbed water films in unsaturated porous media  

E-Print Network (OSTI)

ionic strength and unit hydraulic head gradient. Figure 7.of the unsaturated hydraulic conductivity on matricYork. Durner, W. (1994), Hydraulic conductivity estimation

Tokunaga, Tetsu K.

2009-01-01T23:59:59.000Z

93

Hydraulic Fracturing | Open Energy Information  

Open Energy Info (EERE)

Hydraulic Fracturing Hydraulic Fracturing Jump to: navigation, search More info on OpenEI Oil and Gas Gateway Federal Environmental Statues Federal Oil and Gas Statutes Oil and Gas Companies United States Oil and Gas Boards International Oil and Gas Boards Other Information Fracking Regulations by State Wells by State Fracking Chemicals Groundwater Protection Related Reports A Perspective on Health and Natural Gas Operations: A Report for Denton City Council Just the Fracking Facts The Politics of 'Fracking': Regulating Natural Gas Drilling Practices in Colorado and Texas Addressing the Environmental Risks from Shale Gas Development Water Management Technologies Used by Marcellus Shale Gas Producers Methane contamination of drinking wateraccompanying gas-well drilling and hydraulic fracturing

94

Electrokinetic high pressure hydraulic system  

DOE Patents (OSTI)

An electrokinetic high pressure hydraulic pump for manipulating fluids in capillary-based systems. The pump uses electro-osmotic flow to provide a high pressure hydraulic system, having no moving mechanical parts, for pumping and/or compressing fluids, for providing valve means and means for opening and closing valves, for controlling fluid flow rate, and manipulating fluid flow generally and in capillary-based systems (Microsystems), in particular. The compact nature of the inventive high pressure hydraulic pump provides the ability to construct a micro-scale or capillary-based HPLC system that fulfills the desire for small sample quantity, low solvent consumption, improved efficiency, the ability to run samples in parallel, and field portability. Control of pressure and solvent flow rate is achieved by controlling the voltage applied to an electrokinetic pump.

Paul, Phillip H. (Livermore, CA); Rakestraw, David J. (Fremont, CA); Arnold, Don W. (Livermore, CA); Hencken, Kenneth R. (Pleasanton, CA); Schoeniger, Joseph S. (Oakland, CA); Neyer, David W. (Castro Valley, CA)

2001-01-01T23:59:59.000Z

95

Method for directional hydraulic fracturing  

DOE Patents (OSTI)

A method for directional hydraulic fracturing using borehole seals to confine pressurized fluid in planar permeable regions, comprising: placing a sealant in the hole of a structure selected from geologic or cemented formations to fill the space between a permeable planar component and the geologic or cemented formation in the vicinity of the permeable planar component; making a hydraulic connection between the permeable planar component and a pump; permitting the sealant to cure and thereby provide both mechanical and hydraulic confinement to the permeable planar component; and pumping a fluid from the pump into the permeable planar component to internally pressurize the permeable planar component to initiate a fracture in the formation, the fracture being disposed in the same orientation as the permeable planar component.

Swanson, David E. (West St. Paul, MN); Daly, Daniel W. (Crystal, MN)

1994-01-01T23:59:59.000Z

96

Electokinetic high pressure hydraulic system  

DOE Patents (OSTI)

A compact high pressure hydraulic system having no moving parts for converting electric potential to hydraulic force and for manipulating fluids. Electro-osmotic flow is used to provide a valve and means to compress a fluid or gas in a capillary-based system. By electro-osmotically moving an electrolyte between a first position opening communication between a fluid inlet and outlet and a second position closing communication between the fluid inlet and outlet the system can be configured as a valve. The system can also be used to generate forces as large as 2500 psi that can be used to compress a fluid, either a liquid or a gas.

Paul, Phillip H. (Livermore, CA); Rakestraw, David J. (Fremont, CA)

2000-01-01T23:59:59.000Z

97

Hydraulic jumps on an incline  

E-Print Network (OSTI)

When a fluid jet strikes an inclined solid surface at normal incidence, gravity creates a flow pattern with a thick outer rim resembling a parabola and reminiscent of a hydraulic jump. There appears to be little theory or experiments describing simple aspects of this phenomenon, such as the maximum rise height of the fluid above the impact point, and its dependence on jet velocity and inclination angle. We address this with experiments, and present a simple theory based on horizontal hydraulic jumps which accounts for the rise height and its scaling, though without describing the shape of the parabolic envelope.

Jean-Luc Thiffeault; Andrew Belmonte

2010-09-01T23:59:59.000Z

98

Hydraulic jumps on an incline  

E-Print Network (OSTI)

When a fluid jet strikes an inclined solid surface at normal incidence, gravity creates a flow pattern with a thick outer rim resembling a parabola and reminiscent of a hydraulic jump. There appears to be little theory or experiments describing simple aspects of this phenomenon, such as the maximum rise height of the fluid above the impact point, and its dependence on jet velocity and inclination angle. We address this with experiments, and present a simple theory based on horizontal hydraulic jumps which accounts for the rise height and its scaling, though without describing the shape of the parabolic envelope.

Thiffeault, Jean-Luc

2010-01-01T23:59:59.000Z

99

Steam Turbine Hydraulic Control system Maintenance Guide  

Science Conference Proceedings (OSTI)

Steam turbine hydraulic control system maintenance problems have been a significant factor in plant power reductions, shutdowns, and lost generation. This guide provides recommendations to improve the reliability of the hydraulic components and fluid.

1996-12-31T23:59:59.000Z

100

CRITICALITY CURVES FOR PLUTONIUM HYDRAULIC FLUID MIXTURES  

SciTech Connect

This Calculation Note performs and documents MCNP criticality calculations for plutonium (100% {sup 239}Pu) hydraulic fluid mixtures. Spherical geometry was used for these generalized criticality safety calculations and three geometries of neutron reflection are: {sm_bullet}bare, {sm_bullet}1 inch of hydraulic fluid, or {sm_bullet}12 inches of hydraulic fluid. This document shows the critical volume and critical mass for various concentrations of plutonium in hydraulic fluid. Between 1 and 2 gallons of hydraulic fluid were discovered in the bottom of HA-23S. This HA-23S hydraulic fluid was reported by engineering to be Fyrquel 220. The hydraulic fluid in GLovebox HA-23S is Fyrquel 220 which contains phosphorus. Critical spherical geometry in air is calculated with 0 in., 1 in., or 12 inches hydraulic fluid reflection.

WITTEKIND WD

2007-10-03T23:59:59.000Z

Note: This page contains sample records for the topic "bucknell hydraulic flume" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


101

On Internal Hydraulics with Entrainment  

Science Conference Proceedings (OSTI)

The hydraulics of a single layer flow with entrainment is examined with a reduced-gravity model. Expressions are derived for the local change of Froude number and layer thickness as a function of the entrainment velocity. It is shown that ...

Frank Gerdes; Chris Garrett; David Farmer

2002-03-01T23:59:59.000Z

102

Dynamic Measurement of Hydraulic Parameters Under Liquid ...  

Search PNNL. PNNL Home; About; Research; Publications; Jobs; News; Contacts; Dynamic Measurement of Hydraulic Parameters Under Liquid Unsaturated Flow ...

103

The communication protocol design of electro-hydraulic control system for hydraulic supports at coal mine  

Science Conference Proceedings (OSTI)

The electro-hydraulic control system for hydraulic supports is a multi embedded systems constitute a computer network system working in the coal mine harsh environment. Excellent hardware connection and fine communication protocol are the fundamental ... Keywords: AVR microcontroller, communication protocols, electro-hydraulic control, hydraulic support

Jingguo Wen; Zisheng Lian

2011-09-01T23:59:59.000Z

104

Software implementation of hydraulic shock numerical computation in the pressure hydraulic systems without protection devices  

Science Conference Proceedings (OSTI)

This paper presents software for calculus of hydraulic shock phenomenon in pressure hydraulic systems without protection device. The program is written in Java programming language and responds to the following requirements: easy management of several ... Keywords: flowchart, graphical interface, hydraulic shock (water hammer), method of characteristics, pressure hydraulic system, software

Ichinur Omer

2010-08-01T23:59:59.000Z

105

The hydraulic conductivity of chopped sorghum  

Science Conference Proceedings (OSTI)

Hydraulic conductivity of water through chopped sweet sorghum at various packing densities and soaking times was measured using permeameters. Hydraulic conductivity decreased by two orders of magnitude as packing density increased from 400 to 897 kg/m/sup 3/. Soaking time had less effect on hydraulic conductivity, and the effect depended on packing density.

Custer, M.H.; Reddell, D.L.; Sweeten, J.M.

1987-01-01T23:59:59.000Z

106

Microseismic Tracer Particles for Hydraulic Fracturing  

NLE Websites -- All DOE Office Websites (Extended Search)

Microseismic Tracer Particles for Hydraulic Fracturing Microseismic Tracer Particles for Hydraulic Fracturing Microseismic Tracer Particles for Hydraulic Fracturing Scientists at Los Alamos National Laboratory have developed a method by which microseismic events can be discriminated/detected that correspond to only the portion of the hydraulic fracture that contains the proppant material and can be expected to be conductive to the flow of oil and gas. July 3, 2013 Microseismic Tracer Particles for Hydraulic Fracturing Figure 1: A graph of ionic conductivity as a function of temperature for the anti-perovskite Li3OCl. Available for thumbnail of Feynman Center (505) 665-9090 Email Microseismic Tracer Particles for Hydraulic Fracturing Applications: Oil and gas production Geophysical exploration Benefits: Tracks the disposition of material in a hydraulic fracturing

107

Definition: Hydraulic Conductivity | Open Energy Information  

Open Energy Info (EERE)

Conductivity Conductivity Jump to: navigation, search Dictionary.png Hydraulic Conductivity Hydraulic conductivity is a physical property which measures the ability of the material to transmit fluid through pore spaces and fractures in the presence of an applied hydraulic gradient. Darcy's Law defines the hydraulic conductivity as the ratio of the average velocity of a fluid through a cross-sectional area (Darcy's velocity) to the applied hydraulic gradient.[1] View on Wikipedia Wikipedia Definition Hydraulic conductivity, symbolically represented as, is a property of vascular plants, soil or rock, that describes the ease with which a fluid (usually water) can move through pore spaces or fractures. It depends on the intrinsic permeability of the material and on the degree of

108

Combined hydraulic and regenerative braking system  

DOE Patents (OSTI)

A combined hydraulic and regenerative braking system and method for an electric vehicle is disclosed. The braking system is responsive to the applied hydraulic pressure in a brake line to control the braking of the vehicle to be completely hydraulic up to a first level of brake line pressure, to be partially hydraulic at a constant braking force and partially regenerative at a linearly increasing braking force from the first level of applied brake line pressure to a higher second level of brake line pressure, to be partially hydraulic at a linearly increasing braking force and partially regenerative at a linearly decreasing braking force from the second level of applied line pressure to a third and higher level of applied line pressure, and to be completely hydraulic at a linearly increasing braking force from the third level to all higher applied levels of line pressure.

Venkataperumal, R.R.; Mericle, G.E.

1979-08-09T23:59:59.000Z

109

158 HYDRAULIC PERFORMANCE OF BRIDGE RAILS  

E-Print Network (OSTI)

This research program addresses issues associated with the hydraulic effects of bridge rails on floodwater levels upstream of bridge structures. The hydraulics of bridge rails and traffic barrier systems are not well understood, especially with regard to rail/barrier systems in series and the submergence of structures. The hydraulics of bridge rails is an important issue for TxDOT bridge rehabilitation projects with potentially significant cost implications. This research project is designed to address issues associated with the hydraulic performance of bridge rails and traffic barriers, and to provide guidance on how different rail/barrier systems can be included in floodplain hydraulics models. 17. Key Words Hydraulics, bridge rails, floodplain, Weir equations,

All J. Charbeneau; On Klenzendorf; Michael E. Barrett; Randall J. Charbeneau; Brandon Klenzendorf; Michael E. Barrett

2008-01-01T23:59:59.000Z

110

Combined hydraulic and regenerative braking system  

DOE Patents (OSTI)

A combined hydraulic and regenerative braking system and method for an electric vehicle, with the braking system being responsive to the applied hydraulic pressure in a brake line to control the braking of the vehicle to be completely hydraulic up to a first level of brake line pressure, to be partially hydraulic at a constant braking force and partially regenerative at a linearly increasing braking force from the first level of applied brake line pressure to a higher second level of brake line pressure, to be partially hydraulic at a linearly increasing braking force and partially regenerative at a linearly decreasing braking force from the second level of applied line pressure to a third and higher level of applied line pressure, and to be completely hydraulic at a linearly increasing braking force from the third level to all higher applied levels of line pressure.

Venkataperumal, Rama R. (Troy, MI); Mericle, Gerald E. (Mount Clemens, MI)

1981-06-02T23:59:59.000Z

111

High Resolution River Hydraulic and Water Quality Characterization Using Rapidly Deployable Networked Infomechanical Systems (NIMS RD)  

E-Print Network (OSTI)

High Resolution River Hydraulic and Water Quality1594. High Resolution River Hydraulic and Water Qualityobserving spatiotemporal hydraulic and chemical properties

Thomas C. Harmon; Richard F. Ambrose; Robert M. Gilbert; Jason C. Fisher; Michael Stealey; William J. Kaiser

2006-01-01T23:59:59.000Z

112

Electronics and hydraulics control transmission  

SciTech Connect

Caterpillar engineers have combined electronics and hydraulics for improved transmission control and productivity. The control system had extensive field test experience during development. The system accumulated more than 100,000 hours on 17 vehicles, with individual vehicle times in the 2000-10,000-hour range. Job sites were chosen to test the system over a wide range of applications and locales. The EPTC components are CAT-designed and made by outside suppliers. The components must comply with CAT designs and specifications. All components are 100% functionally tested. The control box is computer-tested functionally at the supplier and at CAT before vehicle installation.

Morris, H.C.; Sorrells, G.K.

1986-04-01T23:59:59.000Z

113

Hydraulic fracturing and shale gas extraction.  

E-Print Network (OSTI)

??In the past decade the technique of horizontal drilling and hydraulic fracturing has been improved so much that it has become a cost effective method (more)

Klein, Michael

2012-01-01T23:59:59.000Z

114

Electromagnetic Alteration of Hydraulic Conductivity of Soils.  

E-Print Network (OSTI)

??Hydraulic conductivity is a measure of the rate at which water flows through porous media. Because of the dipole properties of water molecules, any electric (more)

Azad, Sahba

2013-01-01T23:59:59.000Z

115

Hydraulic fractures traced by monitoring microseismic events  

NLE Websites -- All DOE Office Websites (Extended Search)

Summary: The trend toward production of hydrocarbons from unconventional reservoirs (tight gas, shale oilgas) has caused a large increase in the use of hydraulic fracture...

116

Microseismic Tracer Particles for Hydraulic Fracturing  

NLE Websites -- All DOE Office Websites (Extended Search)

The trend toward production of hydrocarbons from unconventional reservoirs (tight gas, shale oilgas) has caused a large increase in the use of hydraulic fracture stimulation of...

117

Geothermal: Sponsored by OSTI -- Hydraulic fracturing: insights...  

Office of Scientific and Technical Information (OSTI)

Hydraulic fracturing: insights from field, lab, and numerical studies Geothermal Technologies Legacy Collection HelpFAQ | Site Map | Contact Us | Admin Log On HomeBasic Search...

118

Monitoring hydraulic fracture growth: Laboratory experiments  

Science Conference Proceedings (OSTI)

The authors carry out small-scale hydraulic fracture experiments to investigate the physics of hydraulic fracturing. The laboratory experiments are combined with time-lapse ultrasonic measurements with active sources using both compressional and shear-wave transducers. For the time-lapse measurements they focus on ultrasonic measurement changes during fracture growth. As a consequence they can detect the hydraulic fracture and characterize its shape and geometry during growth. Hence, this paper deals with fracture characterization using time-lapse acoustic data. Hydraulic fracturing is used in the oil and gas industry to stimulate reservoir production.

Groenenboom, J.; Dam, D.B. van

2000-04-01T23:59:59.000Z

119

Control rod drive hydraulic system  

DOE Patents (OSTI)

A hydraulic system for a control rod drive (CRD) includes a variable output-pressure CR pump operable in a charging mode for providing pressurized fluid at a charging pressure, and in a normal mode for providing the pressurized fluid at a purge pressure, less than the charging pressure. Charging and purge lines are disposed in parallel flow between the CRD pump and the CRD. A hydraulic control unit is disposed in flow communication in the charging line and includes a scram accumulator. An isolation valve is provided in the charging line between the CRD pump and the scram accumulator. A controller is operatively connected to the CRD pump and the isolation valve and is effective for opening the isolation valve and operating the CRD pump in a charging mode for charging the scram accumulator, and closing the isolation valve and operating the CRD pump in a normal mode for providing to the CRD through the purge line the pressurized fluid at a purge pressure lower than the charging pressure.

Ose, Richard A. (San Jose, CA)

1992-01-01T23:59:59.000Z

120

Hydrodynamic design of axial hydraulic turbines  

Science Conference Proceedings (OSTI)

This paper presents a complete methodology of the hydrodynamic design for the runner of axial hydraulic turbines (Kaplan) using the finite element method. The procedure starts with the parametric design of the meridian channel. Next, the stream traces ... Keywords: QTurbo3D, axial hydraulic turbines, design, meridian channel, runner blade

Daniel Balint; Viorel Cmpian

2011-04-01T23:59:59.000Z

Note: This page contains sample records for the topic "bucknell hydraulic flume" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


121

Mercury-Contaminated Hydraulic Mining Debris in San Francisco Bay  

E-Print Network (OSTI)

may 2010 Mercury-Contaminated Hydraulic Mining Debris in SanCA 94025 Abstract The hydraulic gold-mining process usedsediment created by hydraulic gold mining in the Sierra

Bouse, Robin M; Fuller, Christopher C; Luoma, Sam; Hornberger, Michelle I; Jaffe, Bruce E; Smith, Richard E

2010-01-01T23:59:59.000Z

122

Hydraulic Institute Mission and Vision:  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Institute Mission and Vision: Institute Mission and Vision: Vision: To be a global authority on pumps and pumping systems. Mission: To be a value-adding resource to member companies and pump users worldwide by: * Developing and delivering comprehensive industry standards. * Expanding knowledge by providing education and tools for the effective application, testing, installation, operation and maintenance of pumps and pumping systems. * Serving as a forum for the exchange of industry information. The Hydraulic Institute is a non-profit industry (trade) association established in 1917. HI and its members are dedicated to excellence in the engineering, manufacture, and application of pumping equipment. The Institute plays a leading role in the development of pump standards in North America and worldwide. HI

123

Thermal hydraulics development for CASL  

SciTech Connect

This talk will describe the technical direction of the Thermal-Hydraulics (T-H) Project within the Consortium for Advanced Simulation of Light Water Reactors (CASL) Department of Energy Innovation Hub. CASL is focused on developing a 'virtual reactor', that will simulate the physical processes that occur within a light-water reactor. These simulations will address several challenge problems, defined by laboratory, university, and industrial partners that make up CASL. CASL's T-H efforts are encompassed in two sub-projects: (1) Computational Fluid Dynamics (CFD), (2) Interface Treatment Methods (ITM). The CFD subproject will develop non-proprietary, scalable, verified and validated macroscale CFD simulation tools. These tools typically require closures for their turbulence and boiling models, which will be provided by the ITM sub-project, via experiments and microscale (such as DNS) simulation results. The near-term milestones and longer term plans of these two sub-projects will be discussed.

Lowrie, Robert B [Los Alamos National Laboratory

2010-12-07T23:59:59.000Z

124

Hydraulic fracturing of jointed formations  

DOE Green Energy (OSTI)

Measured by volume, North America's largest hydraulic fracturing operations have been conducted at Fenton Hill, New Mexico to create geothermal energy reservoirs. In the largest operation 21,000 m/sup 3/ of water were injected into jointed granitic rock at a depth of 3.5 km. Microearthquakes induced by this injection were measured with geophones placed in five wells drilled into, or very close, to the reservoir, as well as 11 surface seismometers. The large volume of rock over which the microearthquakes were distributed indicates a mechanism of hydraulic stimulation which is at odds with conventional fracturing theory, which predicts failure along a plane which is perpendicular to the least compressive earth stress. A coupled rock mechanics/fluid flow model provides much of the explanation. Shear slippage along pre-existing joints in the rock is more easily induced than conventional tensile failure, particularly when the difference between minimum and maximum earth stresses is large and the joints are oriented at angles between 30 and 60 degrees to the principal earth stresses, and a low viscosity fluid like water is injected. Shear slippage results in local redistribution of stresses, which allows a branching, or dendritic, stimulation pattern to evolve, in agreement with the patterns of microearthquake locations. These results are qualitatively similar to the controversial process known as ''Kiel'' fracturing, in which sequential injections and shut-ins are repeated to create dendritic fractures for enhanced oil and gas recovery. However, we believe that the explanation is shear slippage of pre-existing joints and stress redistribution, not proppant bridging and fluid blocking as suggested by Kiel. 15 refs., 10 figs.

Murphy, H.D.; Fehler, M.C.

1986-01-01T23:59:59.000Z

125

Hydraulic Institute Mission and Vision | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Hydraulic Institute Mission and Vision Hydraulic Institute Mission and Vision Mission: To be a value-adding resource to member companies and pump users worldwide by: * Developing...

126

Variation in Hydraulic Conductivity Over Time at the Monticello...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Variation in Hydraulic Conductivity Over Time at the Monticello Permeable Reactive Barrier Variation in Hydraulic Conductivity Over Time at the Monticello Permeable Reactive...

127

Model development and calibration for the coupled thermal, hydraulic and mechanical phenomena of the bentonite  

E-Print Network (OSTI)

FOR THE COUPLED THERMAL, HYDRAULIC AND MECHANICAL PHENOMENAby the interdependence of thermal, hydraulic and mechanical

Hernelind, J.

2009-01-01T23:59:59.000Z

128

Progressive wetting of initially hydrophobic plant surfaces by salts a prerequisite for hydraulic activation of stomata?  

E-Print Network (OSTI)

along a transstomatal hydraulic connection. Referencesis called here hydraulic activation of stomata (HAS). The

Burkhardt, Juergen; Hunsche, Mauricio; Pariyar, Shyam

2009-01-01T23:59:59.000Z

129

HYDRAULIC CONDUCTIVITY OF ESSENTIALLY SATURATED PEAT  

SciTech Connect

The Savannah River National Laboratory measured the hydraulic conductivity of peat samples using method ASTM D4511-00. Four samples of peat were packed into 73mm diameter plastic tubes and saturated from the bottom up with water. The columns were packed with Premier ProMoss III TBK peat to a dry density of approximately 0.16 gm/cc (10 lb/ft3). One column was packed using oven dried peat and the other 3 were packed using as delivered peat. The oven dried sample was the most difficult to saturate. All of the peat samples expanded during saturation resulting in a sample length (L) that was longer than when the sample was initially packed. Table 1 contains information related to the column packing. After saturation the hydraulic conductivity test was conducted using the apparatus shown in Figure 1. Three of the samples were tested at 2 different flow conductions, 1 high and 1 low. Table 2 and Figure 2 contain the results of the hydraulic conductivity testing. Each test was run for a minimum of 40 minutes to allow the test conditions to stabilize. The hydraulic conductivity at the end of each test is reported as the hydraulic conductivity for that test. The hydraulic conductivity of the 4 peat samples is 0.0052 {+-} 0.0009 cm/sec. This result compares well with the hydraulic conductivity measured in the pilot scale peat bed after approximately 2 months of operation. The similarity in results between the dry pack sample and moist pack samples shows the moisture content at the time of packing had a minimal effect on the hydraulic conductivity. Additionally, similarity between the results shows the test is reproducible. The hydraulic conductivity results are similar to those reported by other tests of peat samples reported in the literature.

Nichols, R

2008-02-27T23:59:59.000Z

130

Bubble visualization in a simulated hydraulic jump  

E-Print Network (OSTI)

This is a fluid dynamics video of two- and three-dimensional computational fluid dynamics simulations carried out at St. Anthony Falls Laboratory. A transient hydraulic jump is simulated using OpenFOAM, an open source numerical solver. A Volume of Fluid numerical method is employed with a realizable k-epsilon turbulence model. The goal of this research is to model the void fraction and bubble size in a transient hydraulic jump. This fluid dynamics video depicts the air entrainment characteristics and bubble behavior within a hydraulic jump of Froude number 4.82.

Witt, Adam; Shen, Lian

2013-01-01T23:59:59.000Z

131

Comparative hydraulic and anatomic properties in palm trees (Washingtonia robusta) of varying heights: implications for hydraulic limitation to increased height growth  

E-Print Network (OSTI)

studies that suggest that hydraulic limitation may not onlyand Dawson 2007). The hydraulic limitation hypothesis isevidence that the hydraulic cost of increased frictional

Renninger, Heidi J.; Phillips, Nathan; Hodel, Donald R.

2009-01-01T23:59:59.000Z

132

Geomechanical review of hydraulic fracturing technology  

E-Print Network (OSTI)

Hydraulic fracturing as a method for recovering unconventional shale gas has been around for several decades. Significant research and improvement in field methods have been documented in literature on the subject. The ...

Arop, Julius Bankong

2013-01-01T23:59:59.000Z

133

Hydraulic Fracturing Technology | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Oil & Gas » Shale Gas » Hydraulic Oil & Gas » Shale Gas » Hydraulic Fracturing Technology Hydraulic Fracturing Technology Image taken from "Shale Gas: Applying Technology to Solve America's Energy Challenges," NETL, 2011. Image taken from "Shale Gas: Applying Technology to Solve America's Energy Challenges," NETL, 2011. Hydraulic fracturing is a technique in which large volumes of water and sand, and small volumes of chemical additives are injected into low-permeability subsurface formations to increase oil or natural gas flow. The injection pressure of the pumped fluid creates fractures that enhance gas and fluid flow, and the sand or other coarse material holds the fractures open. Most of the injected fluid flows back to the wellbore and is pumped to the surface.

134

HYDRAULIC CEMENT PREPARATION FROM LURGI SPENT SHALE  

E-Print Network (OSTI)

hydraulic cement from spent oil shale," Vol. 10, No. 4, p.J. W. , "Colorado's primary oil shale resource for verticalJ. B. , "Simulated effects of oil-shale development on the

Mehta, P.K.

2013-01-01T23:59:59.000Z

135

On the Use of Rotating Hydraulic Models  

Science Conference Proceedings (OSTI)

Two problems regarding the use of rotating hydraulic channel flow models are addressed. The first concerns the difficulties encountered when trying to identify the potential depth for a flow of uniform (but nonzero) potential vorticity in a ...

K. M. Borens; L. J. Pratt

1994-01-01T23:59:59.000Z

136

Definition: Hydraulic Fracturing | Open Energy Information  

Open Energy Info (EERE)

Jump to: navigation, search Dictionary.png Hydraulic Fracturing The process used in the Oil and Gas industry of drilling deep into the ground and injecting water, sand, and other...

137

Acoustic Character Of Hydraulic Fractures In Granite  

E-Print Network (OSTI)

Hydraulic fractures in homogeneous granitic rocks were logged with conventional acoustic-transit-time, acoustic-waveform, and acoustic-televiewer logging systems. Fractured intervals ranged in depth from 45 to 570m. and ...

Paillet, Frederick I.

1983-01-01T23:59:59.000Z

138

HYDRAULIC CEMENT PREPARATION FROM LURGI SPENT SHALE  

E-Print Network (OSTI)

hydraulic cement from spent oil shale," Vol. 10, No. 4, p.J. W. , "Colorado's primary oil shale resource for verticalSimulated effects of oil-shale development on the hydrology

Mehta, P.K.

2013-01-01T23:59:59.000Z

139

Flow Properties in Rotating, Stratified Hydraulics  

Science Conference Proceedings (OSTI)

This paper discusses three distinct features of rotating, stratified hydraulics, using a reduced-gravity configuration. First, a new upstream condition is derived corresponding to a wide, almost motionless basin, and this is applied to flow ...

Peter D. Killworth

1992-09-01T23:59:59.000Z

140

Hydraulic fracture optimization using hydraulic fracture and reservoir modeling in the Piceance Basin, Colorado.  

E-Print Network (OSTI)

??Hydraulic fracturing is an important stimulation method for producing unconventional gas reserves. Natural fractures are present in many low-permeability gas environments and often provide important (more)

Reynolds, Harris Allen

2012-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "bucknell hydraulic flume" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


141

Hydraulic frac sets Rockies depth record  

SciTech Connect

A depth record for massive hydraulic fracture in the Rocky Mt. region was set April 22 with the treatment of a central Wyoming gas well. The No. 1-29 Moneta Hills Well was treated through perforations at 19,838 to 19,874 ft and 20,064 to 20,100 ft. Soon after, another well in the Madden Deep Field was subject to hydraulic fracture through perforations a

Not Available

1980-06-01T23:59:59.000Z

142

Uncertainty in the maximum principal stress estimated from hydraulic fracturing Measurements due to the presence of the induced fracture  

E-Print Network (OSTI)

Laboratory study of hydraulic fracturing pressure data?Howevaluation of hydraulic fracturing stress measurementreopening during hydraulic fracturing stress determinations.

Rutqvist, Jonny; Tsang, Chin-fu; Stephansson, Ove

2000-01-01T23:59:59.000Z

143

Production of hydraulic oil from Baku crudes  

Science Conference Proceedings (OSTI)

The demand for low-pour oils for use in hydraulic systems is considerably greater than the possible production volume. The base stocks for hydraulic oils - AMG-10, MGE-10A, RM, and RMTs - are obtained by sulfuric acid treatment. In the interest of improving the ecological aspects of hydraulic oil production, sulfuric acid treatment is being replaced by hydroprocessing. The work described here was aimed at determining the feasibility of obtaining hydraulic oil of the RM type from lube distillate fractions of the mixed low-wax crudes processed in the Baku Azerneftyag Petroleum Refinery. This oil is intended for use in hydraulic systems of automatic control apparatus, mainly in flight vehicles operating in the North. Stringent requirements are imposed on its solid point and viscosity. solid point no higher than -60{degrees}C. viscosity w higher than 350 mm{sup 2}/sec at -40{degrees}C. The lube fractions used as starting materials had viscosities of 2.77 and 16.84 mm{sup 2}/sec at 50{degrees}C, with respective flash points of 85{degrees} and 168{degrees}C. As another starting material we used a gasoil cut with a viscosity of 4.4 mm{sup 2}/sec at 50{degrees}C and a flash point of 134{degrees}C.

Samedova, F.I.; Kasumova, A.M.; Alieva, V.M.

1994-07-01T23:59:59.000Z

144

Hydraulic Hybrid Systems | Open Energy Information  

Open Energy Info (EERE)

Hydraulic Hybrid Systems Hydraulic Hybrid Systems Jump to: navigation, search Logo: Hydraulic Hybrid Systems Name Hydraulic Hybrid Systems Address 320 N. Railroad Ave Place Loveland, Colorado Zip 80537 Sector Vehicles Product hydraulic hybrid system for light-duty vehicles Year founded 2008 Number of employees 11-50 Phone number 303-519-4144 Website http://www.hydraulichybridsyst Coordinates 40.394833°, -105.0758931° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":40.394833,"lon":-105.0758931,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

145

HYDRAULIC FRACTURING AND OVERCORING STRESS MEASUREMENTS IN A DEEP BOREHOLE AT THE STRIPA TEST MINE, SWEDEN  

E-Print Network (OSTI)

u l y 2 , 1 9 8 1 HYDRAULIC FRACTURING AND OVERCORING STRESSI nun LBL-12478 HYDRAULIC FRACTURING AND OVERCORING STRESSthe calculated stress. n HYDRAULIC FRACTURING EQUIPMENT AND

Doe, T.

2010-01-01T23:59:59.000Z

146

Acoustic Emission in a Fluid Saturated Hetergeneous Porous Layer with Application to Hydraulic Fracture  

E-Print Network (OSTI)

responses during hydraulic fracturing, and aid developmentFracture Monitoring Hydraulic fracturing is a method forfluids" used for hydraulic fracturing, the above frequencies

Nelson, J.T.

2009-01-01T23:59:59.000Z

147

A Self-Consistent Approach for Calculating the Effective Hydraulic Conductivity of a Bimodal, Heterogeneous Medium  

E-Print Network (OSTI)

Snow, D.T. , Anisotropic Hydraulic conductivity of FracturedComparison of the effective hydraulic conductivity near theestimation of effective hydraulic conductivity in sand-shale

Pozdniakov, Sergey; Tsang, Chin-Fu

2004-01-01T23:59:59.000Z

148

Hydraulic controls on river biota and the consequence for ecosystem processes.  

E-Print Network (OSTI)

periphyton biomass on hydraulic characteristics and nutrientheterogeneity. Journal of Hydraulic Engineering 110:1568-morphology. Journal Of Hydraulic Engineering 129:885- Power,

Limm, Michael Peter

2009-01-01T23:59:59.000Z

149

OBSERVATIONS OF A POTENTIAL SIZE-EFFECT IN EXPERIMENTAL DETERMINATION OF THE HYDRAULIC PROPERTIES OF FRACTURES  

E-Print Network (OSTI)

DETERMINATION OF THE HYDRAULIC PROPERTIES OF FRACTURES P. A.cell 5. Variation of hydraulic conductivity in a fracturecceleratior of gravity hydraulic head fracture intrinsic

Witherspoon, P.A.

2010-01-01T23:59:59.000Z

150

Alternative representations of in-stream habitat: classification using remote sensing, hydraulic modeling, and fuzzy logic  

E-Print Network (OSTI)

C. , 1996, Two-dimensional hydraulic simulation of physicalfish: Linking statistical hydraulic models with multivariateusing Remote Sensing, Hydraulic Modeling, and Fuzzy Logic

Legleiter, Carl J.; Goodchild, M F

2005-01-01T23:59:59.000Z

151

The Hydraulic Institute: Who We Are  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Hydraulic Institute: Hydraulic Institute: Who We Are The Global Authority on Pumps and Pumping Systems As the developer of the universally acclaimed ANSI/HI Pump Standards, a key reference for pump knowledge and end-user specifications, the Hydraulic Institute (HI) provides its members with timely and essential resources for the advancement of their pump industry businesses. HI is also an indispensable asset for business intelligence, professional development, and pump industry leadership and advocacy, serving as the unequivocal voice of the North American pump industry since its inception in 1917. The Institute has become the industry resource for cutting- edge educational programs, critical industry reports, business-enhancing services, and a myriad of opportunities

152

The hydraulic jump as a white hole  

E-Print Network (OSTI)

In the geometry of the circular hydraulic jump, the velocity of the liquid in the interior region exceeds the speed of capillary-gravity waves (ripplons), whose spectrum is `relativistic' in the shallow water limit. The velocity flow is radial and outward, and thus the relativistic ripplons cannot propagating into the interior region. In terms of the effective 2+1 dimensional Painleve-Gullstrand metric appropriate for the propagating ripplons, the interior region imitates the white hole. The hydraulic jump represents the physical singularity at the white-hole horizon. The instability of the vacuum in the ergoregion inside the circular hydraulic jump and its observation in recent experiments on superfluid 4He by E. Rolley, C. Guthmann, M.S. Pettersen and C. Chevallier in physics/0508200 are discussed.

G. E. Volovik

2005-08-30T23:59:59.000Z

153

Hydraulic characterization of hydrothermally altered Nopal tuff  

SciTech Connect

Understanding the mechanics of variably saturated flow in fractured-porous media is of fundamental importance to evaluating the isolation performance of the proposed high-level radioactive waste repository for the Yucca Mountain site. Developing that understanding must be founded on the analysis and interpretation of laboratory and field data. This report presents an analysis of the unsaturated hydraulic properties of tuff cores from the Pena Blanca natural analog site in Mexico. The basic intent of the analysis was to examine possible trends and relationships between the hydraulic properties and the degree of hydrothermal alteration exhibited by the tuff samples. These data were used in flow simulations to evaluate the significance of a particular conceptual (composite) model and of distinct hydraulic properties on the rate and nature of water flow.

Green, R.T.; Meyer-James, K.A. [Southwest Research Institute, San Antonio, TX (United States); Rice, G. [George Rice and Associates, San Antonio, TX (United States)

1995-07-01T23:59:59.000Z

154

Hydraulic Conductivity of the Monticello Permeable Reactive Barrier  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Hydraulic Conductivity of the Monticello Permeable Reactive Barrier Hydraulic Conductivity of the Monticello Permeable Reactive Barrier November 2005 Update Hydraulic Conductivity of the Monticello Permeable Reactive Barrier November 2005 Update Hydraulic Conductivity of the Monticello Permeable Reactive Barrier November 2005 Update Hydraulic Conductivity of the Monticello Permeable Reactive Barrier November 2005 Update More Documents & Publications Variation in Hydraulic Conductivity Over Time at the Monticello Permeable Reactive Barrier Performance Assessment and Recommendations for Rejuvenation of a Permeable Reactive Barrier: Cotter Corporation's Cañon City, Colorado, Uranium Mill Performance Assessment and Recommendations for Rejuvenation of a Permeable Reactive Barrier: Cotter Corporation's Cañon City, Colorado, Uranium

155

Hydraulic Conductivity of the Monticello Permeable Reactive Barrier  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Hydraulic Conductivity of the Monticello Permeable Reactive Barrier Hydraulic Conductivity of the Monticello Permeable Reactive Barrier November 2005 Update Hydraulic Conductivity of the Monticello Permeable Reactive Barrier November 2005 Update Hydraulic Conductivity of the Monticello Permeable Reactive Barrier November 2005 Update Hydraulic Conductivity of the Monticello Permeable Reactive Barrier November 2005 Update More Documents & Publications Variation in Hydraulic Conductivity Over Time at the Monticello Permeable Reactive Barrier Ground-Water Table and Chemical Changes in an Alluvial Aquifer During Sustained Pumping at the Monticello, Utah, Zero-Valent Iron Treatment Cells Performance Assessment and Recommendations for Rejuvenation of a Permeable Reactive Barrier: Cotter Corporation's Cañon City, Colorado, Uranium

156

Self-potential observations during hydraulic fracturing  

SciTech Connect

The self-potential (SP) response during hydraulic fracturing of intact Sierra granite was investigated in the laboratory. Excellent correlation of pressure drop and SP suggests that the SP response is created primarily by electrokinetic coupling. For low pressures, the variation of SP with pressure drop is linear, indicating a constant coupling coefficient (Cc) of -200 mV/MPa. However for pressure drops >2 MPa, the magnitude of the Cc increases by 80% in an exponential trend. This increasing Cc is related to increasing permeability at high pore pressures caused by dilatancy of micro-cracks, and is explained by a decrease in the hydraulic tortuosity. Resistivity measurements reveal a decrease of 2% prior to hydraulic fracturing and a decrease of {approx}35% after fracturing. An asymmetric spatial SP response created by injectate diffusion into dilatant zones is observed prior to hydraulic fracturing, and in most cases this SP variation revealed the impending crack geometry seconds before failure. At rupture, injectate rushes into the new fracture area where the zeta potential is different than in the rock porosity, and an anomalous SP spike is observed. After fracturing, the spatial SP distribution reveals the direction of fracture propagation. Finally, during tensile cracking in a point load device with no water flow, a SP spike is observed that is caused by contact electrification. However, the time constant of this event is much less than that for transients observed during hydraulic fracturing, suggesting that SP created solely from material fracture does not contribute to the SP response during hydraulic fracturing.

Moore, Jeffrey R.; Glaser, Steven D.

2007-09-13T23:59:59.000Z

157

Downhole mud properties complicate drilling hydraulics  

Science Conference Proceedings (OSTI)

This paper explains that wellsite parameters such as penetration rate, hole cleaning, hole erosion and overall wellbore stability are directly related to the hydraulic conditions occurring while drilling. Drilling hydraulics, in turn, are largely a function of the drilling mud's properties, primarily viscosity and density. Accurate pressure loss calculations are necessary to maximize bit horse-power and penetration rates. Also, annular pressure loss measurements are important to record equivalent circulating densities, particularly when drilling near balanced formation pressures or when approaching formation fracture pressures. Determination of the laminar, transitional or turbulent flow regimes will help ensure the mud will remove drill cuttings from the wellbore and minimize hole erosion.

Leyendecker, E.A.; Bruton, J.R.

1986-10-01T23:59:59.000Z

158

DOE's Shale Gas and Hydraulic Fracturing Research | Department...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

DOE's Shale Gas and Hydraulic Fracturing Research DOE's Shale Gas and Hydraulic Fracturing Research April 26, 2013 - 11:05am Addthis Statement of Guido DeHoratiis Acting Deputy...

159

Comparison of Soil Hydraulic Parameterizations for Mesoscale Meteorological Models  

Science Conference Proceedings (OSTI)

Soil water contents, calculated with seven soil hydraulic parameterizations, that is, soil hydraulic functions together with the corresponding parameter sets, are compared with observational data. The parameterizations include the Campbell/Clapp...

Frank J. Braun; Gerd Schdler

2005-07-01T23:59:59.000Z

160

HYDRAULIC FRACTURING AND INDUCED SEISMICITY IN KANSAS  

E-Print Network (OSTI)

For some time the public has asked questions about seismic activity related to hydraulic fracturing and other oil-field related activities. In particular, there is concern that the energy that goes into the subsurface during hydraulic fracturing is sufficient to cause felt earthquakes. The following is a response to those questions. 1) Seismic activity that is related to human activities is generally referred to as induced seismicity or triggered seismicity. Induced seismicity is defined as seismic events attributable to human activities (National Research Council, 2012). The term triggered seismicity is also used to describe situations in which human activities could potentially trigger large and potentially damaging earthquakes (Shemeta et al., 2012). The following discussion uses only the term induced seismicity to refer to seismic activity in which human activity plays a role. 2) Because it uses energy to fracture rocks to release oil or natural gas, hydraulic fracturing does create microseismic events (of a magnitude less than 2.0). Felt earthquake activity (generally greater than a magnitude 3.0) resulting from hydraulic fracturing has been confirmed from only one location in the world (National Research Council, 2012). In the

unknown authors

2013-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "bucknell hydraulic flume" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


161

Grundfos HVAC OEM Efficient water hydraulics  

E-Print Network (OSTI)

Grundfos HVAC OEM Efficient water hydraulics for Heat Pumps Anders Mønsted GRUNDFOS Holding A/S Group Technical Key Account Manager HVAC OEM Project Management http://net.grundfos.com/doc/webnet/hv acoem/index.htmlOEM online #12;Introduction Grundfos Company Grundfos HVAC OEM Current Circulator Range

Oak Ridge National Laboratory

162

Regulation of Hydraulic Fracturing (or lack thereof)  

E-Print Network (OSTI)

: "subsurface emplacement of fluids by well injection." 42 U.S.C. § 300h(d)(1). #12;UIC Program Requirements, EPA has concluded that the injection of hydraulic fracturing fluids into [coalbed methane] wells poses Water Act The federal Safe Drinking Water Act prohibits "underground injection" that is not authorized

Boufadel, Michel

163

MAAP Thermal-Hydraulic Qualification Studies  

Science Conference Proceedings (OSTI)

As a severe accident code, the Modular Accident Analysis Program (MAAP) predicts system response to accident-initiated events. Recent qualification studies demonstrate that MAAP thermal-hydraulic modeling adequately predicts accident sequences before fuel damage occurs. Specifically, MAAP predictions provide a good match with thermal performance trends in test data and independent predictions by other computer programs.

1992-06-01T23:59:59.000Z

164

Rotating Hydraulics and Upstream Basin Circulation  

Science Conference Proceedings (OSTI)

The flow in a source-fed f-plane basin drained through a strait is explored using a single-layer (reduced gravity) shallow-water numerical model that resolves the hydraulic flow within the strait. The steady upstream basin circulation is found to ...

Karl R. Helfrich; Lawrence J. Pratt

2003-08-01T23:59:59.000Z

165

John Day Tailrace MASS2 Hydraulic Modeling  

DOE Green Energy (OSTI)

Recent biological results for the Juvenile Bypass System at John Jay Lock and Dam have raised concerns about the hydraulic conditions that are created in the tailrace under different project operations. This Memorandum for Record discusses the development and application of a truncated MASS2 model in the John Day tailrace.

Rakowski, Cynthia L.; Richmond, Marshall C.

2003-06-03T23:59:59.000Z

166

Hydraulic conductivity of desiccated geosynthetic clay liners  

SciTech Connect

Large-scale tests were performed to determine the effect of a cycle of wetting and drying on the hydraulic conductivity of several geosynthetic clay liners (GCLs). The GCLs were covered with 0.6 m of pea gravel and permeated with water. After steady seepage had developed, the water was drained away, and the GCL was desiccated by circulating heated air through the overlying gravel. The drying caused severe cracking in the bentonite component of the GCLs. The GCLs were again permeated with water. As the cracked bentonite hydrated and swelled, the hydraulic conductivity slowly decreased from an initially high value. The long-term, steady value of hydraulic conductivity after the wetting and drying cycle was found to be essentially the same as the value for the undesiccated GCL. It is concluded that GCLs possess the ability to self-heal after a cycle of wetting and drying, which is important for applications in which there may be alternate wetting and drying of a hydraulic barrier (e.g. within a landfill final cover).

Boardman, B.T. [CH2M Hill, Oakland, CA (United States); Daniel, D.E. [Univ. of Texas, Austin, TX (United States)

1996-03-01T23:59:59.000Z

167

Constructing Hydraulic Barriers in Deep Geologic Formations  

Science Conference Proceedings (OSTI)

Many construction methods have been developed to create hydraulic barriers to depths of 30 to 50 meters, but few have been proposed for depths on the order of 500 meters. For these deep hydraulic barriers, most methods are potentially feasible for soil but not for hard rock. In the course of researching methods of isolating large subterranean blocks of oil shale, the authors have developed a wax thermal permeation method for constructing hydraulic barriers in rock to depths of over 500 meters in competent or even fractured rock as well as soil. The technology is similar to freeze wall methods, but produces a permanent barrier; and is potentially applicable in both dry and water saturated formations. Like freeze wall barriers, the wax thermal permeation method utilizes a large number of vertical or horizontal boreholes around the perimeter to be contained. However, instead of cooling the boreholes, they are heated. After heating these boreholes, a specially formulated molten wax based grout is pumped into the boreholes where it seals fractures and also permeates radially outward to form a series of columns of wax-impregnated rock. Rows of overlapping columns can then form a durable hydraulic barrier. These barriers can also be angled above a geologic repository to help prevent influx of water due to atypical rainfall events. Applications of the technique to constructing containment structures around existing shallow waste burial sites and water shutoff for mining are also described. (authors)

Carter, E.E.; Carter, P.E. [Technologies Co, Texas (United States); Cooper, D.C. [Ph.D. Idaho National Laboratory, Idaho Falls, ID (United States)

2008-07-01T23:59:59.000Z

168

Electrically and Hydraulically Rechargeable Zinc-air Battery  

A secondary zinc air battery, which can be either eletrically or hydraulically recharged, is provided with an inventive metal ...

169

Transient Properties of Refractory Castable with Hydraulic Binders  

Science Conference Proceedings (OSTI)

Abstract Scope, Refractory castable with hydraulic binders have widespread application in aluminium casthouses (furnaces, launders, etc.). Their selection is

170

Vehicle hydraulic system that provides heat for passenger compartment  

DOE Patents (OSTI)

A vehicle includes a vehicle housing which defines a passenger compartment. Attached to the vehicle housing is a hydraulic system, that includes a hydraulic fluid which flows through at least one passageway within the hydraulic system. Also attached to the vehicle housing is a passenger compartment heating system. The passenger compartment heating system includes a heat exchanger, wherein a portion of the heat exchanger is a segment of the at least one passageway of the hydraulic system.

Bartley, Bradley E. (Manito, IL); Blass, James R. (Bloomington, IL); Gibson, Dennis H. (Chillicothe, IL)

2001-01-01T23:59:59.000Z

171

Hydraulically actuated fuel injector including a pilot operated spool valve assembly and hydraulic system using same  

DOE Patents (OSTI)

The present invention relates to hydraulic systems including hydraulically actuated fuel injectors that have a pilot operated spool valve assembly. One class of hydraulically actuated fuel injectors includes a solenoid driven pilot valve that controls the initiation of the injection event. However, during cold start conditions, hydraulic fluid, typically engine lubricating oil, is particularly viscous and is often difficult to displace through the relatively small drain path that is defined past the pilot valve member. Because the spool valve typically responds slower than expected during cold start due to the difficulty in displacing the relatively viscous oil, accurate start of injection timing can be difficult to achieve. There also exists a greater difficulty in reaching the higher end of the cold operating speed range. Therefore, the present invention utilizes a fluid evacuation valve to aid in displacement of the relatively viscous oil during cold start conditions.

Shafer, Scott F. (Morton, IL)

2002-01-01T23:59:59.000Z

172

Gas condensate damage in hydraulically fractured wells  

E-Print Network (OSTI)

This project is a research into the effect of gas condensate damage in hydraulically fractured wells. It is the result of a problem encountered in producing a low permeability formation from a well in South Texas owned by the El Paso Production Company. The well was producing from a gas condensate reservoir. Questions were raised about whether flowing bottomhole pressure below dewpoint would be appropriate. Condensate damage in the hydraulic fracture was expected to be of significant effect. In the most recent work done by Adedeji Ayoola Adeyeye, this subject was studied when the effects of reservoir depletion were minimized by introduction of an injector well with fluid composition the same as the original reservoir fluid. He also used an infinite conductivity hydraulic fracture along with a linear model as an adequate analogy. He concluded that the skin due to liquid build-up is not enough to prevent lower flowing bottomhole pressures from producing more gas. This current study investigated the condensate damage at the face of the hydraulic fracture in transient and boundary dominated periods when the effects of reservoir depletion are taken into account. As a first step, simulation of liquid flow into the fracture was performed using a 2D 1-phase simulator in order to help us to better understand the results of gas condensate simulation. Then during the research, gas condensate models with various gas compositions were simulated using a commercial simulator (CMG). The results of this research are a step forward in helping to improve the management of gas condensate reservoirs by understanding the mechanics of liquid build-up. It also provides methodology for quantifying the condensate damage that impairs linear flow of gas into the hydraulic fracture.

Reza, Rostami Ravari

2004-08-01T23:59:59.000Z

173

Korean Development of Advanced Thermal-Hydraulic Codes for Water Reactors and HTGRs: Space and Gamma  

Science Conference Proceedings (OSTI)

Technical Paper / Special Issue on the 14th International Topical Meeting on Nuclear Reactor Thermal Hydraulics (NURETH-14) / Thermal Hydraulics

Hee Cheon No; Sang Jun Ha; Kyung Doo Kim; Hong Sik Lim; Eo Hwak Lee; Hyung Gon Jin

174

Interaction between Injection Points during Hydraulic Fracturing  

E-Print Network (OSTI)

We present a model of the hydraulic fracturing of heterogeneous poroelastic media. The formalism is an effective continuum model that captures the coupled dynamics of the fluid pressure and the fractured rock matrix and models both the tensile and shear failure of the rock. As an application of the formalism, we study the geomechanical stress interaction between two injection points during hydraulic fracturing (hydrofracking) and how this interaction influences the fracturing process. For injection points that are separated by less than a critical correlation length, we find that the fracturing process around each point is strongly correlated with the position of the neighboring point. The magnitude of the correlation length depends on the degree of heterogeneity of the rock and is on the order of 30-45 m for rocks with low permeabilities. In the strongly correlated regime, we predict a novel effective fracture-force that attracts the fractures toward the neighboring injection point.

Hals, Kjetil M D

2012-01-01T23:59:59.000Z

175

Hydraulic waste energy recovery, Phase 2  

SciTech Connect

The energy required for booster station operation is supplied by the electrical utility company and has an associated cost. Energy removed by pressure reducing valves in the system is lost or wasted. The objective of this project is to capture the wasted hydraulic energy with in-line turbines. In this application, the in-line turbines act as pressure reducing valves while removing energy from the water distribution system and converting it to electrical energy. The North Service Center pumping station was selected for the pilot program due to the availability of a wide range in pressure drop and flow, which are necessary for hydraulic energy recovery. The research performed during this project resulted in documentation of technical, economic, installation, and operational information necessary for local government officials to make an informed judgement as it relates to in-line turbine generation.

1992-02-01T23:59:59.000Z

176

Hydraulic/Shock-Jumps in Protoplanetary Disks  

E-Print Network (OSTI)

In this paper, we describe the nonlinear outcome of spiral shocks in protoplanetary disks. Spiral shocks, for most protoplanetary disk conditions, create a loss of vertical force balance in the post-shock region and result in rapid expansion of the gas perpendicular to the disk midplane. This expansion has characteristics similar to hydraulic jumps, which occur in incompressible fluids. We present a theory to describe the behavior of these hybrids between shocks and hydraulic jumps (shock bores) and then compare the theory to three-dimensional hydrodynamics simulations. We discuss the fully three-dimensional shock structures that shock bores produce and discuss possible consequences for disk mixing, turbulence, and evolution of solids.

A. C. Boley; R. H. Durisen

2005-10-11T23:59:59.000Z

177

Downstream hydraulic geometry relations: 1. Theoretical development  

E-Print Network (OSTI)

In this study, it is hypothesized that (1) the spatial variation of the stream power of a channel for a given discharge is accomplished by the spatial variation in channel form (flow depth and channel width) and hydraulic variables, including energy slope, flow velocity, and friction, and (2) that the change in stream power is distributed among the changes in flow depth, channel width, flow velocity, slope, and friction, depending on the constraints (boundary conditions) the channel has to satisfy. The second hypothesis is a result of the principles of maximum entropy and minimum energy dissipation or its simplified minimum stream power. These two hypotheses lead to four families of downstream hydraulic geometry relations. The conditions under which these families of relations can occur in field are discussed.

Singh, Vijay P.; Yang, Chih Ted; Deng, Z. Q.

2003-12-04T23:59:59.000Z

178

Location of hydraulic fractures using microseismic techniques  

DOE Green Energy (OSTI)

Microearthquakes with magnitudes ranging between -6 and -2 have been observed in three successive massive injections of water at the Hot Dry Rock Geothermal Energy demonstration site at Fenton Hill, New Mexico. The injection was part of a program to increase the heat transfer area of hydraulic fractures and to decrease the flow-through impedance between wells. The microearthquakes were used in mapping the location of the extended hydraulic fractures. A downhole triaxial system positioned approximately 200 m vertically above the injection point in a shut-in production well was used for detection. The microearthquakes occurred in a north-northwest striking zone 400 m in length passing through the injection point. During a third substantially larger injection, microearthquakes occurred in a dispersed volume at distances as great as 800 m from the zone active in the first two injections.

Albright, J.A.; Pearson, C.F.

1980-01-01T23:59:59.000Z

179

HYDRAULIC CEMENT PREPARATION FROM LURGI SPENT SHALE  

SciTech Connect

Low cost material is needed for grouting abandoned retorts. Experimental work has shown that a hydraulic cement can be produced from Lurgi spent shale by mixing it in a 1:1 weight ratio with limestone and heating one hour at 1000C. With 5% added gypsum, strengths up to 25.8 MPa are obtained. This cement could make an economical addition up to about 10% to spent shale grout mixes, or be used in ordinary cement applications.

Mehta, P.K.; Persoff, P.; Fox, J.P.

1980-06-01T23:59:59.000Z

180

Gas condensate damage in hydraulically fractured wells  

E-Print Network (OSTI)

This project is a research into the effect of gas condensate damage in hydraulically fractured wells. It is the result of a problem encountered in producing a low permeability formation from a well in South Texas owned by the El Paso Production Company. The well was producing a gas condensate reservoir and questions were raised about how much drop in flowing bottomhole pressure below dewpoint would be appropriate. Condensate damage in the hydraulic fracture was expected to be of significant effect. Previous attempts to answer these questions have been from the perspective of a radial model. Condensate builds up in the reservoir as the reservoir pressure drops below the dewpoint pressure. As a result, the gas moving to the wellbore becomes leaner. With respect to the study by El-Banbi and McCain, the gas production rate may stabilize, or possibly increase, after the period of initial decline. This is controlled primarily by the condensate saturation near the wellbore. This current work has a totally different approach. The effects of reservoir depletion are minimized by introduction of an injector well with fluid composition the same as the original reservoir fluid. It also assumes an infinite conductivity hydraulic fracture and uses a linear model. During the research, gas condensate simulations were performed using a commercial simulator (CMG). The results of this research are a step forward in helping to improve the management of gas condensate reservoirs by understanding the mechanics of liquid build-up. It also provides methodology for quantifying the condensate damage that impairs linear flow of gas into the hydraulic fracture.

Adeyeye, Adedeji Ayoola

2003-12-01T23:59:59.000Z

Note: This page contains sample records for the topic "bucknell hydraulic flume" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


181

Hydraulic system for a ratio change transmission  

DOE Patents (OSTI)

Disclosed is a drive assembly (10) for an electrically powered vehicle (12). The assembly includes a transaxle (16) having a two-speed transmission (40) and a drive axle differential (46) disposed in a unitary housing assembly (38), an oil-cooled prime mover or electric motor (14) for driving the transmission input shaft (42), an adapter assembly (24) for supporting the prime mover on the transaxle housing assembly, and a hydraulic system (172) providing pressurized oil flow for cooling and lubricating the electric motor and transaxle and for operating a clutch (84) and a brake (86) in the transmission to shift between the two-speed ratios of the transmission. The adapter assembly allows the prime mover to be supported in several positions on the transaxle housing. The brake is spring-applied and locks the transmission in its low-speed ratio should the hydraulic system fail. The hydraulic system pump is driven by an electric motor (212) independent of the prime mover and transaxle.

Kalns, Ilmars (Northville, MI)

1981-01-01T23:59:59.000Z

182

Hydraulic Cooling Tower Driver- The Innovation  

E-Print Network (OSTI)

One of the weaknesses of present day cooling tower drives are fan wrecks caused by shaft couplings breaking, gear box malfunctions due to inadequate lubrication, gear tooth wear, and inaccessibility for inspection and routine maintenance. The hydro-drive eliminates these items from the drive train and puts the same electric motor HP at ground level close coupled to a hydraulic pump, filters, and oil reservoir. Hydraulic lines bring oil pressure to the hydraulic motor, which is more than 75% less weight than comparable gear boxes and presents a smooth practically trouble free performance. In this three cell installation, the original 75 horsepower motors and 18 diameter fans were cooling a total of 14,000 GPM which were CTI tested and 74.7% of capability. The upgrading and retrofit consisted of installing at ground level 100 horse power motors, 22 diameter fans, 14 high velocity recovery fan cylinders, V PVC splash bars, and high efficiency cellular drift eliminators. Testing after completion indicated a 92% tower now circulating 21,000 GPM instead of the original 14,000.

Dickerson, J. A.

1987-09-01T23:59:59.000Z

183

Derivation of site-specific relationships between hydraulic parameters and p-wave velocities based on hydraulic and seismic tomography  

SciTech Connect

In this study, hydraulic and seismic tomographic measurements were used to derive a site-specific relationship between the geophysical parameter p-wave velocity and the hydraulic parameters, diffusivity and specific storage. Our field study includes diffusivity tomograms derived from hydraulic travel time tomography, specific storage tomograms, derived from hydraulic attenuation tomography, and p-wave velocity tomograms, derived from seismic tomography. The tomographic inversion was performed in all three cases with the SIRT (Simultaneous Iterative Reconstruction Technique) algorithm, using a ray tracing technique with curved trajectories. The experimental set-up was designed such that the p-wave velocity tomogram overlaps the hydraulic tomograms by half. The experiments were performed at a wellcharacterized sand and gravel aquifer, located in the Leine River valley near Gttingen, Germany. Access to the shallow subsurface was provided by direct-push technology. The high spatial resolution of hydraulic and seismic tomography was exploited to derive representative site-specific relationships between the hydraulic and geophysical parameters, based on the area where geophysical and hydraulic tests were performed. The transformation of the p-wave velocities into hydraulic properties was undertaken using a k-means cluster analysis. Results demonstrate that the combination of hydraulic and geophysical tomographic data is a promising approach to improve hydrogeophysical site characterization.

Brauchler, R.; Doetsch, J.; Dietrich, P.; Sauter, M.

2012-01-10T23:59:59.000Z

184

NREL: Fleet Test and Evaluation - Hydraulic Hybrid Drive Systems  

NLE Websites -- All DOE Office Websites (Extended Search)

Hydraulic Hybrid Drive Systems Hydraulic Hybrid Drive Systems NREL's Fleet Test and Evaluation Team conducts performance evaluations of hydraulic hybrid drive systems in delivery vehicles. Because hydraulic hybrids feature highly efficient regenerative braking systems and "engine off at idle" capabilities, they are ideal for parcel delivery applications where stop-and-go traffic is common. Hydraulic hybrid systems can capture up to 70% of the kinetic energy that would otherwise be lost during braking. This energy drives a pump, which transfers hydraulic fluid from a low-pressure reservoir to a high-pressure accumulator. When the vehicle accelerates, fluid in the high-pressure accumulator moves to the lower-pressure reservoir, which drives a motor and provides extra torque. This process can improve the vehicle's fuel economy

185

Debris Thermal Hydraulics Modeling of QUENCH Experiments  

SciTech Connect

Porous debris formation and behavior in QUENCH experiments (QUENCH-02, QUENCH-03) plays a considerable role and its adequate modeling is important for thermal analysis. This work is aimed to the development of a numerical module which is able to model thermal hydraulics and heat transfer phenomena occurring during the high-temperature stage of severe accident with the formation of debris region and molten pool. The original approach for debris evolution is developed from classical principles using a set of parameters including debris porosity; average particle diameter; temperatures and mass fractions of solid, liquid and gas phases; specific interface areas between different phases; effective thermal conductivity of each phase, including radiative heat conductivity; mass and energy fluxes through the interfaces. The debris model is based on the system of continuity, momentum and energy conservation equations, which consider the dynamics of volume-averaged velocities and temperatures of fluid, solid and gaseous phases of porous debris. The different mechanisms of debris formation are considered, including degradation of fuel rods according to temperature criteria, taking into consideration some correlations between rod layers thicknesses; degradation of rod layer structure due to thermal expansion of melted materials inside intact rod cladding; debris formation due to sharp temperature drop of previously melted material due to reflood; and transition to debris of material from elements lying above. The porous debris model was implemented to best estimate numerical code RATEG/SVECHA/HEFEST developed for modeling thermal hydraulics and severe accident phenomena in a reactor. The model is used for calculation of QUENCH experiments. The results obtained by the model are compared to experimental data concerning different aspects of thermal behavior: thermal hydraulics of porous debris, radiative heat transfer in a porous medium, the generalized melting and refreezing behavior of materials, hydrogen production. (authors)

Kisselev, Arcadi E.; Kobelev, Gennadii V.; Strizhov, Valerii F.; Vasiliev, Alexander D. [Nuclear Safety Institute - IBRAE, 52 Bolshaya Tulskaya Ulitsa, Moscow, 113191 (Russian Federation)

2006-07-01T23:59:59.000Z

186

Free-wheeling hydraulic power mills  

DOE Green Energy (OSTI)

Free-wheeling power plants using free replenishable hydraulic forces of winds and water currents would consist of most or all of the following: fore and after cones to increase throughput; duplex impellers; rotors with dc/ac excitation, ac/dc inverters and dc field coils; stators with ac output of varying frequency, voltage and power; solid-state ac/dc inverters, dc electrolytic cell banks for GH/sub 2/ and GO/sub 2/ production; and neon refrigerators for reducing these to LOX and chilled GH/sub 2/ for ease in shipment or storage.

Hall, F.F.

1978-10-01T23:59:59.000Z

187

Hydraulic Fracturing and Water Use in Dallas, Texas.  

E-Print Network (OSTI)

??Dallas, Texas is located in North Texas and sits above the eastern portion of the Barnett Shale natural gas formation. Hydraulic fracturing, or fracking, was (more)

Yates, Sarah

2013-01-01T23:59:59.000Z

188

Thermal Hydraulic Optimization of Nuclear Systems [Heat Transfer and Fluid  

NLE Websites -- All DOE Office Websites (Extended Search)

Thermal Hydraulic Thermal Hydraulic Optimization of Nuclear Systems Capabilities Engineering Computation and Design Engineering and Structural Mechanics Systems/Component Design, Engineering and Drafting Heat Transfer and Fluid Mechanics Overview Thermal Hydraulic Optimization of Nuclear Systems Underhood Thermal Management Combustion Simulations Advanced Model and Methodology Development Multi-physics Reactor Performance and Safety Simulations Other Capabilities Work with Argonne Contact us For Employees Site Map Help Join us on Facebook Follow us on Twitter NE on Flickr Heat Transfer and Fluid Mechanics Bookmark and Share Thermal Hydraulic Optimization of Nuclear Systems Accelerator Driven Test Facility Target Accelerator Driven Test Facility Target. Click on image to view larger

189

Modeling Of Hydraulic Fracture Network Propagation In Shale Gas Reservoirs.  

E-Print Network (OSTI)

??The most effective method for stimulating shale gas reservoirs is massive hydraulic fracture treatments. Recent fracture diagnostic technologies such as microseismic technology have shown that (more)

Ahn, Chong

2012-01-01T23:59:59.000Z

190

Haptic Control of Hydraulic Machinery Using Proportional Valves .  

E-Print Network (OSTI)

??Supplying haptic or force feedback to operators using hydraulic machinery such as excavators has the potential to increase operator capabilities. Haptic, robotic, human-machine interfaces enable (more)

Kontz, Matthew Edward

2007-01-01T23:59:59.000Z

191

Dynamic analysis and fault diagnosis of a water hydraulic motor.  

E-Print Network (OSTI)

??This research is concerned with condition monitoring and fault diagnosis of the piston of the water hydraulic motor by vibration signal analysis. Vibration signatures are (more)

Chen, Hanxin.

2008-01-01T23:59:59.000Z

192

Hydraulic properties of adsorbed water films in unsaturated porous media  

SciTech Connect

Adsorbed water films strongly influence residual water saturations and hydraulic conductivities in porous media at low saturations. Hydraulic properties of adsorbed water films in unsaturated porous media were investigated through combining Langmuir's film model with scaling analysis, without use of any adjustable parameters. Diffuse double layer influences are predicted to be important through the strong dependence of adsorbed water film thickness (f) on matric potential ({Psi}) and ion charge (z). Film thickness, film velocity, and unsaturated hydraulic conductivity are predicted to vary with z{sup -1}, z{sup -2}, and z{sup -3}, respectively. In monodisperse granular media, the characteristic grain size ({lambda}) controls film hydraulics through {lambda}{sup -1} scaling of (1) the perimeter length per unit cross sectional area over which films occur, (2) the critical matric potential ({Psi}{sub c}) below which films control flow, and (3) the magnitude of the unsaturated hydraulic conductivity when {Psi} < {Psi}{sub c}. While it is recognized that finer textured sediments have higher unsaturated hydraulic conductivities than coarser sands at intermediate {Psi}, the {lambda}{sup -1} scaling of hydraulic conductivity predicted here extends this understanding to very low saturations where all pores are drained. Extremely low unsaturated hydraulic conductivities are predicted under adsorbed film-controlled conditions (generally < 0.1 mm y{sup -1}). On flat surfaces, the film hydraulic diffusivity is shown to be constant (invariant with respect to {Psi}).

Tokunaga, Tetsu K.

2009-03-01T23:59:59.000Z

193

MICRO-SEISMICITY, FAULT STRUCTURE AND HYDRAULIC COMPARTMENTALIZATION...  

Open Energy Info (EERE)

MICRO-SEISMICITY, FAULT STRUCTURE AND HYDRAULIC COMPARTMENTALIZATION WITHIN THE COSO GETHERMAL FIELD, CALIFORNIA Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home...

194

Application of the directional hydraulic fracturing at Berezovskaya Mine  

SciTech Connect

The paper analyzes the experimental research of the directional hydraulic fracturing applied for weakening of rocks at Berezovskaya Mine (Kuznetsk Coal Basin) in 2005-2006.

Lekontsev, Y.M.; Sazhin, P.V. [Russian Academy of Sciences, Novosibirsk (Russian Federation). Institute for Mining

2008-05-15T23:59:59.000Z

195

Applying and analyzing robust modern control on uncertain hydraulic systems .  

E-Print Network (OSTI)

??In this work modern robust control systems are designed and compared to standard techniques for a hydraulic implement system. The system includes an independent metering (more)

Bax, Brian

2006-01-01T23:59:59.000Z

196

Optimization of the Cooling Process of a Heavy Hydraulic Turbine ...  

Science Conference Proceedings (OSTI)

Hydraulic turbine lower band castings, of the matensitic stainless steel (Cr13% ... Effect of Si Content on Fracture Behaviour Change by Strain Rate in Si Steels.

197

Hydraulic constraints on photosynthesis in subtropical evergreen broad leaf forest and pine woodland trees of the Florida Everglades  

E-Print Network (OSTI)

127:445 Zimmermann MH (1978) Hydraulic architecture of some South Florida Hydraulic conductivity PhotosyntheticArgentina Introduction Plant hydraulic characteristics have

Jones, Tim J.; Luton, Corene D.; Santiago, Louis S.; Goldstein, Guillermo

2010-01-01T23:59:59.000Z

198

Goal 4 Long Life Pavement Rehabilitation Strategies-Rigid: Flexural Fatigue Life of Hydraulic Cement Concrete Beams  

E-Print Network (OSTI)

Flexural Fatigue Life of Hydraulic Cement Concrete Beamsperformance of Fast-Setting Hydraulic Cement Concrete (and Thermal Expansion of Hydraulic Cement Concrete Mixes,

Kohler, Erwin R.; Ali, Abdikarim; Harvey, John T

2005-01-01T23:59:59.000Z

199

CLMT2 user's guide: A Coupled Model for Simulation of Hydraulic Processes from Canopy to Aquifer Version 1.0  

E-Print Network (OSTI)

equations for some soil hydraulicproperties. Waterarecapabletosimulatehydraulicprocessesfrom topofModelforSimulationofHydraulicProcessesfromCanopyto

Pan, Lehua

2006-01-01T23:59:59.000Z

200

Estimation of field-scale soil hydraulic and dielectric parameters through joint inversion of GPR and hydrological data  

E-Print Network (OSTI)

Catalog of Vadose Zone Hydraulic Properties for the Hanfordand Measurement of the Hydraulic Properties of UnsaturatedEstimation for Soil Hydraulic Properties Using Zero-Offset

2005-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "bucknell hydraulic flume" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


201

Estimation of deformation and stiffness of fractures close to tunnels using data from single-hole hydraulic testing and grouting  

E-Print Network (OSTI)

normal stiffness and hydraulic conductivity of a major sheareffect in single-hole hydraulic testing and grouting. Int JRutqvist J. Determination of hydraulic normal stiffness of

Fransson, A.

2010-01-01T23:59:59.000Z

202

Heat as a Tracer to Examine Hydraulic Conductance Near the Russian River Bank Filtration Facility, Sonoma County, CA  

E-Print Network (OSTI)

to examine streambed hydraulic conductance near the Russianas a tracer to determine the hydraulic conductance of themodel requires that key hydraulic parameters be identified,

Constantz, Jim; Su, Grace; Hatch, Christine

2004-01-01T23:59:59.000Z

203

FORMED CORE SAMPLER HYDRAULIC CONDUCTIVITY TESTING  

SciTech Connect

A full-scale formed core sampler was designed and functionally tested for use in the Saltstone Disposal Facility (SDF). Savannah River National Laboratory (SRNL) was requested to compare properties of the formed core samples and core drilled samples taken from adjacent areas in the full-scale sampler. While several physical properties were evaluated, the primary property of interest was hydraulic conductivity. Differences in hydraulic conductivity between the samples from the formed core sampler and those representing the bulk material were noted with respect to the initial handling and storage of the samples. Due to testing conditions, the site port samples were exposed to uncontrolled temperature and humidity conditions prior to testing whereas the formed core samples were kept in sealed containers with minimal exposure to an uncontrolled environment prior to testing. Based on the results of the testing, no significant differences in porosity or density were found between the formed core samples and those representing the bulk material in the test stand.

Miller, D.; Reigel, M.

2012-09-25T23:59:59.000Z

204

TEMPEST. Transient 3-D Thermal-Hydraulic  

SciTech Connect

TEMPEST is a transient, three-dimensional, hydrothermal program that is designed to analyze a range of coupled fluid dynamic and heat transfer systems of particular interest to the Fast Breeder Reactor (FBR) thermal-hydraulic design community. The full three-dimensional, time-dependent equations of motion, continuity, and heat transport are solved for either laminar or turbulent fluid flow, including heat diffusion and generation in both solid and liquid materials. The equations governing mass, momentum, and energy conservation for incompressible flows and small density variations (Boussinesq approximation) are solved using finite-difference techniques. Analyses may be conducted in either cylindrical or Cartesian coordinate systems. Turbulence is treated using a two-equation model. Two auxiliary plotting programs, SEQUEL and MANPLOT, for use with TEMPEST output are included. SEQUEL may be operated in batch or interactive mode; it generates data required for vector plots, contour plots of scalar quantities, line plots, grid and boundary plots, and time-history plots. MANPLOT reads the SEQUEL-generated data and creates the hardcopy plots. TEMPEST can be a valuable hydrothermal design analysis tool in areas outside the intended FBR thermal-hydraulic design community.

Eyler, L.L. [Pacific Northwest Lab., Richland, WA (United States)

1992-01-31T23:59:59.000Z

205

P and PI controllers for a nonlinear hydraulic network  

E-Print Network (OSTI)

constraints) arising in industrial applications. Current case study: Grundfos district heating system #12;P" district heating system #12;P and PI controllers for a nonlinear hydraulic network Sept. 20, 2007 Page 4 Results #12;P and PI controllers for a nonlinear hydraulic network Sept. 20, 2007 Page 5 District Heating

De Persis, Claudio

206

Simulation of Dynamic Characteristic for Passive Hydraulic Mount  

Science Conference Proceedings (OSTI)

Dynamic modeling of Passive Hydraulic Engine Mounts (PHEM) is developed with inertia track, decoupler and throttle. Mathematically, the state equations governing vibration isolation behaviors of the PHEMs are presented and solved by means of the lumped ... Keywords: passive hydraulic mount, simulation, test

Zhang Yunxia; Fang Zuhua

2009-08-01T23:59:59.000Z

207

Fold Catastrophe Model of Fracture Propagation of Hydraulic Fracturing  

Science Conference Proceedings (OSTI)

According to energy conservation from the destruction of rock catastrophe, a new calculation method of the length of fracture propagation in hydraulic fracturing is proposed, and assuming the crack extends to approximate ellipse, the width calculation ... Keywords: hydraulic fracture, fold catastrophe, fracture parameters

Zhaowan Chun; Wan Tingting; Ai Chi; Ju Guoshuai

2010-05-01T23:59:59.000Z

208

A New Parameter Identification Method for Hydraulic Fractured Gas Wells  

Science Conference Proceedings (OSTI)

The relaxation search algorithm to identify the parameters of hydraulic fractured gas wells is developed in this paper based on the inductive matrix. According to the optimization theory and parallel computation method, the parameters to be identified ... Keywords: Gas Wells, hydraulic fracturing, formation parameters, parameter identification, historic fitting

Li Tiejun; Guo Dali; Min Chao

2010-12-01T23:59:59.000Z

209

New Experimental Studies of Thermal Hydraulics of Rod Bundles (NESTOR)  

Science Conference Proceedings (OSTI)

The NESTOR project (that is, new experimental studies of thermal hydraulics of rod bundles) is a multiyear collaborative endeavor of the Electric Power Research Institute (EPRI), Electricit de France (EDF), and Commissariat a lEnergie Atomique (CEA). The project is aimed at elucidating thermal-hydraulics unknowns pertaining to axial offset anomaly (AOA) in pressurized water reactor (PWR) cores.

2011-10-26T23:59:59.000Z

210

Unsaturated hydraulic parameters determined from direct and indirect methods  

SciTech Connect

Hydraulic parameters are required for numerical simulations of unsaturated flow at Yucca Mountain, a vertically heterogeneous volcanic site for a potential high-level waste repository in the desert southwest. In this paper, direct measurements of the unsaturated hydraulic conductivity using a centrifuge with a specialized rotor are compared to those estimated using a predictive conductivity equation and two methods of measuring moisture retention.

Flint, Lorraine E.; Hudson, David B.; Flint, Alan L.

1997-10-22T23:59:59.000Z

211

Integrated Thermal and Hydraulic Analysis of Distillation Columns  

E-Print Network (OSTI)

This paper outlines the implementation of column thermal and hydraulic analysis in a simulation environment. The methodology is described using a separations example. Column Thermal Analysis has been discussed in the literature extensively. The paper outlines how bringing together the column thermal and hydraulics analysis provides significant additional insights to help screen the options for distillation column revamps.

Samant, K.; Sinclair, I.; Keady, G.

2002-04-01T23:59:59.000Z

212

Potential Contaminant Pathways from Hydraulically Fractured Shale to Aquifers  

E-Print Network (OSTI)

Potential Contaminant Pathways from Hydraulically Fractured Shale to Aquifers by Tom Myers Abstract Hydraulic fracturing of deep shale beds to develop natural gas has caused concern regarding the potential and preferential flow through fractures--could allow the transport of contaminants from the fractured shale

213

A finite element model for three dimensional hydraulic fracturing  

Science Conference Proceedings (OSTI)

This paper is devoted to the development of a model for the numerical simulation of hydraulic fracturing processes with 3d fracture propagation. It takes into account the effects of fluid flow inside the fracture, fluid leak-off through fracture walls ... Keywords: boundary elements, finite elements, hydraulic fracturing, petroleum recovery

Philippe R. B. Devloo; Paulo Dore Fernandes; Snia M. Gomes; Cedric Marcelo Augusto Ayala Bravo; Renato Gomes Damas

2006-11-01T23:59:59.000Z

214

A New Parameter to Assess Hydromechanical Effect in Single-hole Hydraulic Testing and Grouting  

E-Print Network (OSTI)

of rock joints from hydraulic field testing. Ph.D. thesis,R W, Bodvarsson G S. Hydraulic conductivity of rockFractures as Derived From Hydraulic and Tracer Tests. Water

Fransson, A.

2008-01-01T23:59:59.000Z

215

Acoustic Emission in a Fluid Saturated Hetergeneous Porous Layer with Application to Hydraulic Fracture  

E-Print Network (OSTI)

Motion for a New Model of Hydraulic Fracture With an Induced1987. Hydrodynamics of a Vertical Hydraulic Fracture, Earthand Fluid Flow in the Hydraulic Fracture Pmess, (PhD.

Nelson, J.T.

2009-01-01T23:59:59.000Z

216

LABORATORY INVESTIGATIONS ON THE HYDRAULIC AND THERMOMECHANICAL PROPERTIES OF FRACTURED CRYSTALLINE ROCKS  

E-Print Network (OSTI)

INVESTIGATIONS ON THE HYDRAULIC AND THERMOMECHANICALdetermination of the hydraulic p r o p e r t i e s of f r ainfluence of thermal and hydraulic stresses. The success of

Witherspoon, P.A.

2010-01-01T23:59:59.000Z

217

Using electrical impedance tomography to map subsurface hydraulic conductivity  

DOE Patents (OSTI)

The use of Electrical Impedance Tomography (EIT) to map subsurface hydraulic conductivity. EIT can be used to map hydraulic conductivity in the subsurface where measurements of both amplitude and phase are made. Hydraulic conductivity depends on at least two parameters: porosity and a length scale parameter. Electrical Resistance Tomography (ERT) measures and maps electrical conductivity (which can be related to porosity) in three dimensions. By introducing phase measurements along with amplitude, the desired additional measurement of a pertinent length scale can be achieved. Hydraulic conductivity controls the ability to flush unwanted fluid contaminants from the surface. Thus inexpensive maps of hydraulic conductivity would improve planning strategies for subsequent remediation efforts. Fluid permeability is also of importance for oil field exploitation and thus detailed knowledge of fluid permeability distribution in three-dimension (3-D) would be a great boon to petroleum reservoir analysts.

Berryman, James G. (Danville, CA); Daily, William D. (Livermore, CA); Ramirez, Abelardo L. (Pleasanton, CA); Roberts, Jeffery J. (Livermore, CA)

2000-01-01T23:59:59.000Z

218

Determining the Porosity and Saturated Hydraulic Conductivity of Binary Mixtures  

SciTech Connect

Gravels and coarse sands make up significant portions of some environmentally important sediments, while the hydraulic properties of the sediments are typically obtained in the laboratory using only the fine fraction (e.g., <2 mm or 4.75 mm). Researchers have found that the content of gravel has significant impacts on the hydraulic properties of the bulk soils. Laboratory experiments were conducted to measure the porosity and the saturated hydraulic conductivity of binary mixtures with different fractions of coarse and fine components. We proposed a mixing-coefficient model to estimate the porosity and a power-averaging method to determine the effective particle diameter and further to predict the saturated hydraulic conductivity of binary mixtures. The proposed methods could well estimate the porosity and saturated hydraulic conductivity of the binary mixtures for the full range of gravel contents and was successfully applied to two data sets in the literature.

Zhang, Z. F.; Ward, Anderson L.; Keller, Jason M.

2009-09-27T23:59:59.000Z

219

Determining the Porosity and Saturated Hydraulic Conductivity of Binary Mixtures  

SciTech Connect

Gravels and coarse sands make up significant portions of some environmentally important sediments, while the hydraulic properties of the sediments are typically obtained in the laboratory using only the fine fraction (e.g., <2 mm or 4.75 mm). Researchers have found that the content of gravel has significant impacts on the hydraulic properties of the bulk soils. Laboratory experiments were conducted to measure the porosity and the saturated hydraulic conductivity of binary mixtures with different fractions of coarse and fine components. We proposed a mixing-coefficient model to estimate the porosity and a power-averaging method to determine the effective particle diameter and further to predict the saturated hydraulic conductivity of binary mixtures. The proposed methods could well estimate the porosity and saturated hydraulic conductivity of the binary mixtures for the full range of gravel contents and was successfully applied to two data sets in the literature.

Zhang, Z. F.; Ward, Anderson L.; Keller, Jason M.

2011-02-14T23:59:59.000Z

220

THE THREE DIMENSIONAL THERMAL HYDRAULIC CODE BAGIRA.  

SciTech Connect

BAGIRA - a thermal-hydraulic program complex was primarily developed for using it in nuclear power plant simulator models, but is also used as a best-estimate analytical tool for modeling two-phase mixture flows. The code models allow consideration of phase transients and the treatment of the hydrodynamic behavior of boiling and pressurized water reactor circuits. It provides the capability to explicitly model three-dimensional flow regimes in various regions of the primary and secondary circuits such as, the mixing regions, circular downcomer, pressurizer, reactor core, main primary loops, the steam generators, the separator-reheaters. In addition, it is coupled to a severe-accident module allowing the analysis of core degradation and fuel damage behavior. Section II will present the theoretical basis for development and selected results are presented in Section III. The primary use for the code complex is to realistically model reactor core behavior in power plant simulators providing enhanced training tools for plant operators.

KALINICHENKO,S.D.; KOHUT,P.; KROSHILIN,A.E.; KROSHILIN,V.E.; SMIRNOV,A.V.

2003-05-04T23:59:59.000Z

Note: This page contains sample records for the topic "bucknell hydraulic flume" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


221

Neutron Imaging Reveals Internal Plant Hydraulic Dynamics  

SciTech Connect

Many terrestrial ecosystem processes are constrained by water availability and transport within the soil. Knowledge of plant water fluxes is thus critical for assessing mechanistic processes linked to biogeochemical cycles, yet resolution of root structure and xylem water transport dynamics has been a particularly daunting task for the ecologist. Through neutron imaging, we demonstrate the ability to non-invasively monitor individual root functionality and water fluxes within Zea mays L. (maize) and Panicum virgatum L. (switchgrass) seedlings growing in a sandy medium. Root structure and growth were readily imaged by neutron radiography and neutron computed tomography. Seedlings were irrigated with water or deuterium oxide and imaged through time as a growth lamp was cycled on to alter leaf demand for water. Sub-millimeter scale resolution reveals timing and magnitudes of root water uptake, redistribution within the roots, and root-shoot hydraulic linkages, relationships not well characterized by other techniques.

Warren, Jeffrey [ORNL; Bilheux, Hassina Z [ORNL; Kang, Misun [ORNL; Voisin, Sophie [ORNL; Cheng, Chu-Lin [ORNL; Horita, Jusuke [ORNL; Perfect, Edmund [ORNL

2013-01-01T23:59:59.000Z

222

Ductility of lightly reinforced concrete hydraulic structures  

E-Print Network (OSTI)

In the past, intake towers built by the Corp of Engineers were designed without consideration of seismic effects. This study investigates an economic approach to determining the ductility of an existing lightly reinforced concrete hydraulic structure. An intake tower, typical of older structure, with reinforcing steel ratios below code specified minimums was selected and modeled using DRAIN-2DX, a dynamic analysis program for personal computers which incorporates the effects of inelastic deformation. The analyses, performed with three separate earthquake acceleration time histories for various model conditions, produced a range of ductility values. The results indicate that ductility is facilitated by the presence of in-plane walls. However, the calculated ductility values may be exaggerated due to the elastic panel elements in the model which redistribute loads away from yielded sections. Also, larger ductility values were calculated for reservoirs with water than for empty reservoirs.

Raines, Amy Lynette

1994-01-01T23:59:59.000Z

223

LMR thermal hydraulics calculations in the US  

SciTech Connect

A wide range of thermal hydraulics computer codes have been developed by various organizations in the US. These codes cover an extensive range of purposes from within-assembly-wise pin temperature calculations to plant wide transient analysis. The codes are used for static analysis, for analysis of protected anticipated transients, and for analysis of a wide range of unprotected transients for the more recent inherently safe LMR designs. Some of these codes are plant-specific codes with properties of a specific plant built into them. Other codes are more general and can be applied to a number of plants or designs. These codes, and the purposes for which they have been used, are described.

Dunn, F.E.; Malloy, D.J.; Mohr, D.

1987-04-27T23:59:59.000Z

224

Gas Test Loop Booster Fuel Hydraulic Testing  

SciTech Connect

The Gas Test Loop (GTL) project is for the design of an adaptation to the Advanced Test Reactor (ATR) to create a fast-flux test space where fuels and materials for advanced reactor concepts can undergo irradiation testing. Incident to that design, it was found necessary to make use of special booster fuel to enhance the neutron flux in the reactor lobe in which the Gas Test Loop will be installed. Because the booster fuel is of a different composition and configuration from standard ATR fuel, it is necessary to qualify the booster fuel for use in the ATR. Part of that qualification is the determination that required thermal hydraulic criteria will be met under routine operation and under selected accident scenarios. The Hydraulic Testing task in the GTL project facilitates that determination by measuring flow coefficients (pressure drops) over various regions of the booster fuel over a range of primary coolant flow rates. A high-fidelity model of the NW lobe of the ATR with associated flow baffle, in-pile-tube, and below-core flow channels was designed, constructed and located in the Idaho State University Thermal Fluids Laboratory. A circulation loop was designed and constructed by the university to provide reactor-relevant water flow rates to the test system. Models of the four booster fuel elements required for GTL operation were fabricated from aluminum (no uranium or means of heating) and placed in the flow channel. One of these was instrumented with Pitot tubes to measure flow velocities in the channels between the three booster fuel plates and between the innermost and outermost plates and the side walls of the flow annulus. Flow coefficients in the range of 4 to 6.5 were determined from the measurements made for the upper and middle parts of the booster fuel elements. The flow coefficient for the lower end of the booster fuel and the sub-core flow channel was lower at 2.3.

Gas Test Loop Hydraulic Testing Staff

2006-09-01T23:59:59.000Z

225

Thermal Hydraulics of Sodium-Cooled Fast Reactors: Key Design and Safety Issues and Highlights  

Science Conference Proceedings (OSTI)

Technical Paper / Special Issue on the 14th International Topical Meeting on Nuclear Reactor Thermal Hydraulics (NURETH-14) / Fission Reactors; Thermal Hydraulics

Hisashi Ninokata; Hideki Kamide

226

Method for valve seating control for an electro-hydraulic engine valve  

DOE Patents (OSTI)

Valve lift in an internal combustion engine is controlled by an electro-hydraulic actuation mechanism including a selectively actuable hydraulic feedback circuit.

Sun, Zongxuan (Plymouth, MN)

2011-01-11T23:59:59.000Z

227

MICRO-SEISMICITY, FAULT STRUCTURE AND HYDRAULIC COMPARTMENTALIZATION WITHIN  

Open Energy Info (EERE)

MICRO-SEISMICITY, FAULT STRUCTURE AND HYDRAULIC COMPARTMENTALIZATION WITHIN MICRO-SEISMICITY, FAULT STRUCTURE AND HYDRAULIC COMPARTMENTALIZATION WITHIN THE COSO GETHERMAL FIELD, CALIFORNIA Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Proceedings: MICRO-SEISMICITY, FAULT STRUCTURE AND HYDRAULIC COMPARTMENTALIZATION WITHIN THE COSO GETHERMAL FIELD, CALIFORNIA Details Activities (1) Areas (1) Regions (0) Abstract: High precision earthquake locations and subsurface velocity structure provide potential insights into fracture system geometry, fluid conduits and fluid compartmentalization critical to geothermal reservoir management. We analyze 16 years of seismicity to improve hypocentral locations and simultaneously invert for the seismic velocity structure within the Coso Geothermal Field (CGF). The CGF has been continuously

228

Microsoft Word - S0212500_HydraulicConductivity-PRB.doc  

Office of Legacy Management (LM)

Hydraulic Conductivity of the Monticello Hydraulic Conductivity of the Monticello Permeable Reactive Barrier November 2005 Update January 2006 DOE-LM/GJ1086-2006 ESL-RPT-2006-01 DOE-LM/GJ1086-2006 ESL-RPT-2006-01 Hydraulic Conductivity of the Monticello Permeable Reactive Barrier-November 2005 Update January 2006 Work Performed by S.M. Stoller Corporation under DOE Contract No. DE-AC01-02GJ79491 for the U.S. Department of Energy Office of Legacy Management, Grand Junction, Colorado U.S. Department of Energy Hydraulic Conductivity of the Monticello PRB-November 2005 Update January 2006 Doc. No. S0212500 Page iii Contents 1.0 Introduction ...........................................................................................................................

229

Mercury-Contaminated Hydraulic Mining Debris in San Francisco Bay  

E-Print Network (OSTI)

S, and Flegal AR 2008. Mercury in the San Francisco Estuary.may 2010 Mercury-Contaminated Hydraulic Mining Debris in Sancontaminants such as ele- mental mercury and cyanide used in

Bouse, Robin M; Fuller, Christopher C; Luoma, Sam; Hornberger, Michelle I; Jaffe, Bruce E; Smith, Richard E

2010-01-01T23:59:59.000Z

230

Hydraulic Fracturing Data Collection Tools Improve Environmental Reporting,  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Hydraulic Fracturing Data Collection Tools Improve Environmental Hydraulic Fracturing Data Collection Tools Improve Environmental Reporting, Monitoring, Protection Hydraulic Fracturing Data Collection Tools Improve Environmental Reporting, Monitoring, Protection April 18, 2013 - 12:03pm Addthis Washington, DC -Two data collection tools specifically developed for hydraulic fracturing are available to help regulatory agencies monitor drilling and completion operations and enhance environmental protection. Developed with support from the U.S. Department of Energy's Office of Fossil Energy (FE), the Risk Based Data Management System (RBDMS) and FracFocus chemical disclosure registry provide a way for industry professionals, regulatory agencies and the general public to more easily access information on oil and natural gas activities. These reporting and

231

Microsoft Word - S0212500_HydraulicConductivity-PRB.doc  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Hydraulic Conductivity of the Monticello Hydraulic Conductivity of the Monticello Permeable Reactive Barrier November 2005 Update January 2006 DOE-LM/GJ1086-2006 ESL-RPT-2006-01 DOE-LM/GJ1086-2006 ESL-RPT-2006-01 Hydraulic Conductivity of the Monticello Permeable Reactive Barrier-November 2005 Update January 2006 Work Performed by S.M. Stoller Corporation under DOE Contract No. DE-AC01-02GJ79491 for the U.S. Department of Energy Office of Legacy Management, Grand Junction, Colorado U.S. Department of Energy Hydraulic Conductivity of the Monticello PRB-November 2005 Update January 2006 Doc. No. S0212500 Page iii Contents 1.0 Introduction ...........................................................................................................................

232

Hydraulically Drained Flows in Rotating Basins. Part II: Steady Flow  

Science Conference Proceedings (OSTI)

The slow, horizontal circulation in a deep, hydraulically drained basin is discussed within the context of reduced-gravity dynamics. The basin may have large topographic variations and is fed from above or from the sides by mass sources. ...

Lawrence J. Pratt

1997-12-01T23:59:59.000Z

233

Hydraulic Physical Modeling and Observations of a Severe Gap Wind  

Science Conference Proceedings (OSTI)

Strong gap winds in Howe Sound, British Columbia, are simulated using a small-scale physical model. Model results are presented and compared with observations recorded in Howe Sound during a severe gap wind event in December 1992. Hydraulic ...

Timothy D. Finnigan; Jason A. Vine; Peter L. Jackson; Susan E. Allen; Gregory A. Lawrence; Douw G. Steyn

1994-12-01T23:59:59.000Z

234

Adaptive control of hydraulic shift actuation in an automatic transmission  

E-Print Network (OSTI)

A low-order dynamic model of a clutch for hydraulic control in an automatic transmission is developed by separating dynamics of the shift into four regions based on clutch piston position. The first three regions of the ...

Thornton, Sarah Marie

2013-01-01T23:59:59.000Z

235

Hydraulic Control of Flows with Nonuniform Potential Vorticity  

Science Conference Proceedings (OSTI)

The hydraulics of flow contained in a channel and having nonuniform potential vorticity is considered from a general standpoint. The channel cross section is rectangular and the potential vorticity is assumed to be prescribed in terms of the ...

Lawrence J. Pratt; Laurence Armi

1987-11-01T23:59:59.000Z

236

On-line hydraulic state prediction for water distribution systems  

E-Print Network (OSTI)

This paper describes and demonstrates a method for on?line hydraulic state prediction in urban water networks. The proposed method uses a Predictor?Corrector (PC) approach in which a statistical data?driven algorithm is ...

Whittle, Andrew

237

Hydraulically actuated gas exchange valve assembly and engine using same  

DOE Patents (OSTI)

An engine comprises a housing that defines a hollow piston cavity that is separated from a gas passage by a valve seat. The housing further defines a biasing hydraulic cavity and a control hydraulic cavity. A gas valve member is also included in the engine and is movable relative to the valve seat between an open position at which the hollow piston cavity is open to the gas passage and a closed position in which the hollow piston cavity is blocked from the gas passage. The gas valve member includes a ring mounted on a valve piece and a retainer positioned between the ring and the valve piece. A closing hydraulic surface is included on the gas valve member and is exposed to liquid pressure in the biasing hydraulic cavity.

Carroll, Thomas S. (Peoria, IL); Taylor, Gregory O. (Hinsdale, IL)

2002-09-03T23:59:59.000Z

238

Generalized Conditions for Hydraulic Criticality of Oceanic Overflows  

Science Conference Proceedings (OSTI)

Two methods for assessing the hydraulic criticality of an observed or modeled overflow are discussed. The methods are valid for single-layer deep flows with arbitrary potential vorticity and cross section. The first method is based on a purely ...

Larry Pratt; Karl Helfrich

2005-10-01T23:59:59.000Z

239

INVESTIGATIONS ON HYDRAULIC CEMENTS FROM SPENT OIL SHALE  

E-Print Network (OSTI)

ON HYDRAULIC CEMENTS FROM SPENT OIL SHALE P.K. Mehta and P.Cement Manufacture from Oil Shale, U.S. Patent 2,904,445,203 (1974), E. D. York, Amoco Oil Co. , letter to J, P. Fox,

Mehta, P.K.

2012-01-01T23:59:59.000Z

240

Steady state thermal hydraulic analysis of hydride fueled BWRs  

E-Print Network (OSTI)

(cont.) Since the results obtained in the main body of the analysis account only for thermal-hydraulic constraints, an estimate of the power reduction due to the application of neutronic constraints is also performed. This ...

Ferroni, Paolo, Ph. D. Massachusetts Institute of Technology

2006-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "bucknell hydraulic flume" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


241

Multiphase Flow Dynamics 4: Nuclear Thermal Hydraulics, 1st edition  

Science Conference Proceedings (OSTI)

Volume 4 of the successful book package "Multiphase Flow" is devoted to nuclear thermal hydraulics which is a substantial part of nuclear reactor safety. It provides knowledge and mathematical tools for adequate description of the process of transferring ...

Nikolay I. Kolev

2009-06-01T23:59:59.000Z

242

Modeling of Hydraulically Controlled Exchange Flow in the Bosphorus Strait  

Science Conference Proceedings (OSTI)

Recent hydrographic observations obtained in the Bosphorus Strait illustrate several features of the flow that may be related with the internal hydraulics. A two-layer numerical model indicates that the two-way exchange flow may indeed be subject ...

Temel Oguz; Emin zsoy; Mohammed A. Latif; Halil I. Sur; mit nlata

1990-07-01T23:59:59.000Z

243

Hydraulic Fracturing Data Collection Tools Improve Environmental Reporting,  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Hydraulic Fracturing Data Collection Tools Improve Environmental Hydraulic Fracturing Data Collection Tools Improve Environmental Reporting, Monitoring, Protection Hydraulic Fracturing Data Collection Tools Improve Environmental Reporting, Monitoring, Protection April 18, 2013 - 12:03pm Addthis Washington, DC -Two data collection tools specifically developed for hydraulic fracturing are available to help regulatory agencies monitor drilling and completion operations and enhance environmental protection. Developed with support from the U.S. Department of Energy's Office of Fossil Energy (FE), the Risk Based Data Management System (RBDMS) and FracFocus chemical disclosure registry provide a way for industry professionals, regulatory agencies and the general public to more easily access information on oil and natural gas activities. These reporting and

244

Is the Faroe Bank Channel Overflow Hydraulically Controlled?  

Science Conference Proceedings (OSTI)

The overflow of dense water from the Nordic Seas through the Faroe Bank Channel (FBC) has attributes suggesting hydraulic controlprimarily an asymmetry across the sill reminiscent of flow over a dam. However, this aspect has never been confirmed ...

James B. Girton; Lawrence J. Pratt; David A. Sutherland; James F. Price

2006-12-01T23:59:59.000Z

245

Part-Load Flow and Hydraulic Stability of Centrifugal Pumps  

Science Conference Proceedings (OSTI)

Replacement energy costs for outages of large plants caused by feedpump problems amount to more than $400 million annually. Laboratory tests were performed to increase understanding of the physical mechanisms responsible for unstable performance curves and hydraulic excitation forces that can lead to failure. Tentative guidelines have been established for the selection of hydraulic design parameters.Background The size and number of fossil-fired generating ...

1992-03-01T23:59:59.000Z

246

Integrated hydraulic cooler and return rail in camless cylinder head  

SciTech Connect

An engine assembly may include a cylinder head defining an engine coolant reservoir, a pressurized fluid supply, a valve actuation assembly, and a hydraulic fluid reservoir. The valve actuation assembly may be in fluid communication with the pressurized fluid supply and may include a valve member displaceable by a force applied by the pressurized fluid supply. The hydraulic fluid reservoir may be in fluid communication with the valve actuation assembly and in a heat exchange relation to the engine coolant reservoir.

Marriott, Craig D. (Clawson, MI); Neal, Timothy L. (Ortonville, MI); Swain, Jeff L. (Flushing, MI); Raimao, Miguel A. (Colorado Springs, CO)

2011-12-13T23:59:59.000Z

247

Gravity-free hydraulic jumps and metal femtocups  

E-Print Network (OSTI)

Hydraulic jumps created by gravity are seen every day in the kitchen sink. We show that at small scales a circular hydraulic jump can be created in the absence of gravity, by surface tension. The theory is motivated by our experimental finding of a height discontinuity in spreading submicron molten metal droplets created by pulsed-laser ablation. By careful control of initial conditions, we show that this leads to solid femtolitre cups of gold, silver, copper, niobium and tin.

Rama Govindarajan; Manikandan Mathur; Ratul DasGupta; N. R. Selvi; Neena Susan John; G. U. Kulkarni

2006-10-03T23:59:59.000Z

248

Optimal power management for a hydraulic hybrid delivery truck  

E-Print Network (OSTI)

Hydraulic hybrid propulsion and energy storage components demonstrate characteristics that are very different from their electric counterparts, thus requiring unique control strategies. This paper presents a methodology for developing a power management strategy tailored specifically to a parallel Hydraulic Hybrid Vehicle (HHV) configured for a medium-size delivery truck. The Hydraulic Hybrid Vehicle is modelled in the MATLAB/SIMULINK environment to facilitate system integration and control studies. A Dynamic Programming (DP) algorithm is used to obtain optimal control actions for gear shifting and power splitting bet ween the engine and the hydraulic motor over a representative urban driving schedule. Features of optimal trajectories are then studied to derive i mplementable rules. System behaviour demonstrates that the new control strategy takes advantage of high power density and efficiency characteristics of hydraulic components, and minimizes disadvantages of low energy density, to achieve enhanced overall efficiency. Simulation results indicate that the potential for fuel economy improvement of medium trucks with hydraulic hybrid propulsion can be as high as 48 %. 1

Bin Wu; Chan-chiao Lin; Zoran Filipi; Huei Peng

2004-01-01T23:59:59.000Z

249

Process management using component thermal-hydraulic function classes  

DOE Patents (OSTI)

A process management expert system where following malfunctioning of a component, such as a pump, for determining system realignment procedures such as for by-passing the malfunctioning component with on-line speeds to maintain operation of the process at full or partial capacity or to provide safe shut down of the system while isolating the malfunctioning component. The expert system uses thermal-hydraulic function classes at the component level for analyzing unanticipated as well as anticipated component malfunctions to provide recommended sequences of operator actions. Each component is classified according to its thermal-hydraulic function, and the generic and component-specific characteristics for that function. Using the diagnosis of the malfunctioning component and its thermal hydraulic class, the expert system analysis is carried out using generic thermal-hydraulic first principles. One aspect of the invention employs a qualitative physics-based forward search directed primarily downstream from the malfunctioning component in combination with a subsequent backward search directed primarily upstream from the serviced component. Generic classes of components are defined in the knowledge base according to the three thermal-hydraulic functions of mass, momentum and energy transfer and are used to determine possible realignment of component configurations in response to thermal-hydraulic function imbalance caused by the malfunctioning component. Each realignment to a new configuration produces the accompanying sequence of recommended operator actions. All possible new configurations are examined and a prioritized list of acceptable solutions is produced.

Morman, James A. (Woodridge, IL); Wei, Thomas Y. C. (Downers Grove, IL); Reifman, Jaques (Western Springs, IL)

1999-01-01T23:59:59.000Z

250

Process management using component thermal-hydraulic function classes  

DOE Patents (OSTI)

A process management expert system where following malfunctioning of a component, such as a pump, for determining system realignment procedures such as for by-passing the malfunctioning component with on-line speeds to maintain operation of the process at full or partial capacity or to provide safe shut down of the system while isolating the malfunctioning component. The expert system uses thermal-hydraulic function classes at the component level for analyzing unanticipated as well as anticipated component malfunctions to provide recommended sequences of operator actions. Each component is classified according to its thermal-hydraulic function, and the generic and component-specific characteristics for that function. Using the diagnosis of the malfunctioning component and its thermal hydraulic class, the expert system analysis is carried out using generic thermal-hydraulic first principles. One aspect of the invention employs a qualitative physics-based forward search directed primarily downstream from the malfunctioning component in combination with a subsequent backward search directed primarily upstream from the serviced component. Generic classes of components are defined in the knowledge base according to the three thermal-hydraulic functions of mass, momentum and energy transfer and are used to determine possible realignment of component configurations in response to thermal-hydraulic function imbalance caused by the malfunctioning component. Each realignment to a new configuration produces the accompanying sequence of recommended operator actions. All possible new configurations are examined and a prioritized list of acceptable solutions is produced. 5 figs.

Morman, J.A.; Wei, T.Y.C.; Reifman, J.

1999-07-27T23:59:59.000Z

251

Derivation of site-specific relationships between hydraulic parameters and p-wave velocities based on hydraulic and seismic tomography  

E-Print Network (OSTI)

method, Water Resources Research 36 (8), 2095-2105 Yeh, T. -determine the water saturation. However, Yeh at al. , 2000Yeh (2005), Characterization of aquifer heterogeneity using transient hydraulic tomography, Water

Brauchler, R.

2012-01-01T23:59:59.000Z

252

Hydrodynamics of a vertical hydraulic fracture  

DOE Green Energy (OSTI)

We have developed a numerical algorithm, HUBBERT, to simulate the hydrodynamics of a propagating vertical, rectangular fracture in an elastic porous medium. Based on the IFD method, this algorithm assumes fracture geometry to be prescribed. The breakdown and the creation of the incipient fracture is carried out according to the Hubbert-Willis theory. The propagation of the fracture is based on the criterion provided by Griffith, based on energy considerations. The deformation properties of the open fracture are based on simple elasticity solutions. The fracture is assumed to have an elliptical shape to a distance equal to the fracture height, beyond which the shape is assumed to be parallel plate. A consequence of Griffith's criterion is that the fracture must propagate in discrete steps. The parametric studies carried out suggest that for a clear understanding of the hydrodynamics of the hydraulic fracture many hitherto unrecognized parameters must be better understood. Among these parameters one might mention, efficiency, aperture of the newly formed fracture, stiffness of the newly formed fracture, relation between fracture aperture and permeability, and well bore compliance. The results of the studies indicate that the patterns of pressure transients and the magnitudes of fracture length appear to conform to field observations. In particular, the discrete nature of fracture propagation as well as the relevant time scales of interest inferred from the present work seem to be corroborated by seismic monitoring in the field. The results suggest that the estimation of least principal stress can be reliably made either with shut in data or with reinjection data provided that injection rates are very small.

Narasimhan, T.N.

1987-03-24T23:59:59.000Z

253

Hydraulic Permeability of Resorcinol-Formaldehyde Resin  

SciTech Connect

An ion exchange process using spherical resorcinol-formaldehyde (RF) resin is the baseline process for removing cesium from the dissolved salt solution in the high-level waste tanks at the Hanford Site, using large scale columns as part of the Waste Treatment Plant (WTP). The RF resin is also being evaluated for use in the proposed small column ion exchange (SCIX) system, which is an alternative treatment option at Hanford and at the Savannah River Site (SRS). A recirculating test loop with a small ion exchange column was used to measure the effect of oxygen uptake and radiation exposure on the permeability of a packed bed of the RF resin. The lab-scale column was designed to be prototypic of the proposed Hanford columns at the WTP. Although the test equipment was designed to model the Hanford ion exchange columns, the data on changes in the hydraulic permeability of the resin will also be valuable for determining potential pressure drops through the proposed SCIX system. The superficial fluid velocity in the lab-scale test (3.4-5.7 cm/s) was much higher than is planned for the full-scale Hanford columns to generate the maximum pressure drop expected in those columns (9.7 psig). The frictional drag from this high velocity produced forces on the resin in the lab-scale tests that matched the design basis of the full-scale Hanford column. Any changes in the resin caused by the radiation exposure and oxygen uptake were monitored by measuring the pressure drop through the lab-scale column and the physical properties of the resin. Three hydraulic test runs were completed, the first using fresh RF resin at 25 C, the second using irradiated resin at 25 C, and the third using irradiated resin at 45 C. A Hanford AP-101 simulant solution was recirculated through a test column containing 500 mL of Na-form RF resin. Known amounts of oxygen were introduced into the primary recirculation loop by saturating measured volumes of the simulant solution with oxygen and reintroducing the oxygenated simulant into the feed tank. The dissolved oxygen (DO) concentration of the recirculating simulant was monitored, and the amount of oxygen that reacted with the resin was determined from the change in the DO concentration of the recirculating simulant solution. Prior to hydraulic testing the resin for runs 2 and 3 was covered with the simulant solution and irradiated in a spent fuel element at the Oak Ridge National Laboratory High Flux Isotope Reactor (HFIR). Both batches of resin were irradiated to a total gamma dose of 177 Mrad, but the resin for run 2 reached a maximum temperature during irradiation of 51 C, while the resin for run 3 reached a temperature of 38 C. The different temperatures were the result of the operating status of HFIR at the time of the irradiation and were not part of the test plan; however, the results clearly show the impact of the higher-temperature exposure during irradiation. The flow rate and pressure drop data from the test loop runs show that irradiating the RF resin reduces both the void fraction and the permeability of the resin bed. The mechanism for the reduction in permeability is not clear because irradiation increases the particle size of the resin beads and makes them deform less under pressure. Microscopic examination of the resin beads shows that they are all smooth regular spheres and that irradiation or oxygen uptake did not change the shape of the beads. The resin reacts rapidly with DO in the simulant solution, and the reaction with oxygen reduces the permeability of a bed of new resin by about 10% but has less impact on the permeability of irradiated resin. Irradiation increases the toughness of the resin beads, probably by initiating cross-linking reactions in them. Oxygen uptake reduces the crush strength of both new and irradiated resin; however, the pressures that caused the beads to crush are much higher than would be expected during the operation of an ion exchange column. There was no visible evidence of broken beads in any of the resin samples taken from the test loop. Reaction with oxygen red

Taylor, Paul Allen [ORNL

2010-01-01T23:59:59.000Z

254

Process management using component thermal-hydraulic function classes  

DOE Patents (OSTI)

A process management expert system for a nuclear, chemical or other process is effective following malfunctioning of a component, such as a pump, for determining system realignment procedures such as for by-passing the malfunctioning component with on-line speeds to maintain operation of the process at full or partial capacity or to provide safe shut down of the system while isolating the malfunctioning component. The expert system uses thermal-hydraulic function classes at the component level for analyzing unanticipated as well as anticipated component malfunctions to provide recommended sequences of operator actions. Each component is classified according to its thermal-hydraulic function, and the generic and component-specific characteristics for that function. Using the diagnosis of the malfunctioning component and its thermal hydraulic class, the expert system analysis is carried out using generic thermal-hydraulic first principles. One aspect of the invention employs a qualitative physics-based forward search directed primarily downstream from the malfunctioning component in combination with a subsequent backward search directed primarily upstream from the serviced component. Generic classes of components are defined in the knowledge base according to the three thermal-hydraulic functions of mass, momentum and energy transfer and are used to determine possible realignment of component configurations in response to thermal-hydraulic function imbalance caused by the malfunctioning component. The search process is based upon mass, momentum and energy conservation principles so that qualitative thermal-hydraulic fundamental principles are satisfied for new system configurations. Each realignment to a new configuration produces the accompanying sequence of recommended operator actions. All possible new configurations are examined and a prioritized list of acceptable solutions is produced.

Morman, James A.; Wei, Thomas Y.C.; Reifman, Jaques

1997-12-01T23:59:59.000Z

255

Transient Thermal, Hydraulic, and Mechanical Analysis of a Counter Flow Offset Strip Fin Intermediate Heat Exchanger using an Effective Porous Media Approach  

E-Print Network (OSTI)

Transient Thermal, Hydraulic, and Mechanical Analysis of a2009 Transient Thermal, Hydraulic, and Mechanical AnalysisAbstract Transient Thermal, Hydraulic, and Mechanical Stress

Urquiza, Eugenio

2009-01-01T23:59:59.000Z

256

Feed-Pump Hydraulic Performance and Design Improvement, Phase I:  

Office of Scientific and Technical Information (OSTI)

Feed-Pump Hydraulic Performance Feed-Pump Hydraulic Performance and Design Improvement, Phase I: J2esearch Program Design Volume 2 EPRI EPRI CS-2323 Volume 2 Project 1884-6 Final Report March 1982 Keywords: Feed Pumps Feed Pump Reliability Feed Pump Hydraulics Feed Pump Design Feed Pump Research Feed Pump Specifications Prepared by Borg-Warner Corporation (Byron Jackson Pump Division and Borg-Warner Research Center) Carson, California and Massa^ f Technology Cambri__ . s ,-T. a a *a_^"nt.- ji^, w « ' jm.m ^j.^M\MMMim^mjii'mmmjmiiiimm\i- " I E CT R I C P 0 W E R R E S E A R C H I N ST ITO T E DISCLAIMER This report was prepared as an account of work sponsored by an agency of the United States Government. Neither the United States Government nor any agency Thereof, nor any of their employees,

257

On equivalence of thinning fluids used for hydraulic fracturing  

E-Print Network (OSTI)

The paper aims to answer the question: if and how non-Newtonian fluids may be compared in their mechanical action when used for hydraulic fracturing? By employing the modified formulation of the PKN problem we obtain its simple analytical solutions in the cases of perfectly plastic and Newtonian fluids. Since the results for shear thinning fluids are intermediate between those for these cases, the obtained equation for the fracture length suggests a criterion of the equivalence of various shear thinning fluids for the problem of hydraulic fractures. We assume fluids equivalent in their hydrofracturing action, when at a reference time they produce fractures of the same length. The equation for the fracture length translates the equivalence in terms of the hydraulic fracture length and treatment time into the equivalence in terms of the properties of a fracturing fluid (behavior and consistency indices). Analysis shows that the influence of the consistency and behavior indices on the fracture length, particle v...

Linkov, Alexander

2012-01-01T23:59:59.000Z

258

DOE's Shale Gas and Hydraulic Fracturing Research | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Shale Gas and Hydraulic Fracturing Research Shale Gas and Hydraulic Fracturing Research DOE's Shale Gas and Hydraulic Fracturing Research April 26, 2013 - 11:05am Addthis Statement of Guido DeHoratiis Acting Deputy Assistant Secretary for Oil and Natural Gas before the House Committee on Science, Space, and Technology Subcommittees on Energy and Environment. I want to thank the Chairs, Ranking Members and Members of the Subcommittees for inviting me to appear before you today to discuss the critical role that the Department of Energy's Office of Fossil Energy, in collaboration with the Department of the Interior (DOI) and the Environmental Protection Agency (EPA), is playing to improve the safety and environmental performance of developing our Nation's unconventional oil and natural gas (UOG) resources.

259

MHK Technologies/Tidal Hydraulic Generators THG | Open Energy Information  

Open Energy Info (EERE)

Generators THG Generators THG < MHK Technologies Jump to: navigation, search << Return to the MHK database homepage Tidal Hydraulic Generators THG.jpg Technology Profile Primary Organization Tidal Hydraulic Generators Ltd Project(s) where this technology is utilized *MHK Projects/Ramsey Sound Technology Resource Click here Current/Tidal Technology Type Click here Axial Flow Turbine Technology Readiness Level Click here TRL 1-3: Discovery / Concept Definition / Early Stage Development & Design & Engineering Technology Description The concept of generating energy in this way is made unique by our novel design feature. The generator, devised in 1998, is a hydraulic accumulator system, involving relatively small revolving blades which gather power to a central collector, where electricity is generated. The generator, which is situated under water, is 80 metres square, stands at 15 metres high, and is designed to run for a minimum of ten years without service.

260

Performance Evaluation of Gene Expression Programming for Hydraulic Data Mining  

E-Print Network (OSTI)

Abstract: Predication is one of the fundamental tasks of data mining. In recent years, Artificial Intelligence techniques are widely being used in data mining applications where conventional statistical methods were used such as Regression and classification. The aim of this work is to show the applicability of Gene Expression Programming (GEP), a recently developed AI technique, for hydraulic data prediction and to evaluate its performance by comparing it with Multiple Linear Regression (MLR). Both GEP and MLR were used to model the hydraulic jump over a roughened bed using very large series of experimental data that contain all the important flow and roughness parameters such as the initial Froude number, the height of roughness ratio, the length of roughness ratio, the initial length ratio (from the gate) and the roughness density. The results show that GEP is a promising AI approach for hydraulic data prediction.

Khalid Eldr; Abdel-azim Negm

2006-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "bucknell hydraulic flume" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


261

Advanced hydraulic fracturing methods to create in situ reactive barriers  

Science Conference Proceedings (OSTI)

This article describes the use of hydraulic fracturing to increase permeability in geologic formations where in-situ remedial action of contaminant plumes will be performed. Several in-situ treatment strategies are discussed including the use of hydraulic fracturing to create in situ redox zones for treatment of organics and inorganics. Hydraulic fracturing methods offer a mechanism for the in-situ treatment of gently dipping layers of reactive compounds. Specialized methods using real-time monitoring and a high-energy jet during fracturing allow the form of the fracture to be influenced, such as creation of assymmetric fractures beneath potential sources (i.e. tanks, pits, buildings) that should not be penetrated by boring. Some examples of field applications of this technique such as creating fractures filled with zero-valent iron to reductively dechlorinate halogenated hydrocarbons, and the use of granular activated carbon to adsorb compounds are discussed.

Murdoch, L. [FRX Inc., Cincinnati, OH (United States)]|[Clemson Univ., SC (United States). Dept. of Geological Sciences; Siegrist, B.; Meiggs, T. [Oak Ridge National Lab., TN (United States)] [and others

1997-12-31T23:59:59.000Z

262

Microsoft Word - S0162200_VariationHydraulicConductivity-PRB.doc  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

GJ803-2005 GJ803-2005 ESL-RPT-2005-01 Variation in Hydraulic Conductivity Over Time at the Monticello Permeable Reactive Barrier February 2005 Work Performed by S.M. Stoller Corporation under DOE Contract No. DE-AC01-02GJ79491 for the U.S. Department of Energy Office of Legacy Management, Grand Junction, Colorado U.S. Department of Energy Variation in Hydraulic Conductivity Over Time at the Monticello Permeable Reactive Barrier February 2005 Doc. No. S0162200 Page v Contents Executive Summary...................................................................................................................... vii 1.0 Introduction ...........................................................................................................................

263

Microsoft Word - S0162200_VariationHydraulicConductivity-PRB.doc  

Office of Legacy Management (LM)

GJ803-2005 GJ803-2005 ESL-RPT-2005-01 Variation in Hydraulic Conductivity Over Time at the Monticello Permeable Reactive Barrier February 2005 Work Performed by S.M. Stoller Corporation under DOE Contract No. DE-AC01-02GJ79491 for the U.S. Department of Energy Office of Legacy Management, Grand Junction, Colorado U.S. Department of Energy Variation in Hydraulic Conductivity Over Time at the Monticello Permeable Reactive Barrier February 2005 Doc. No. S0162200 Page v Contents Executive Summary...................................................................................................................... vii 1.0 Introduction ...........................................................................................................................

264

Scaling Characteristics of Soil Hydraulic Parameters at Varying Spatial Resolutions  

E-Print Network (OSTI)

This dissertation focuses on the challenge of soil hydraulic parameter scaling in soil hydrology and related applications in general; and, in particular, the upscaling of these parameters to provide effective values at coarse scales. Soil hydraulic properties are required for many hydrological and ecological models at their representative scales. Prediction accuracy of these models is highly dependent on the quality of the model input parameters. However, measurement of parameter data at all such required scales is impractical as that would entail huge outlays of finance, time and effort. Hence, alternate methods of estimating the soil hydraulic parameters at the scales of interest are necessary. Two approaches to bridge this gap between the measurement and application scales for soil hydraulic parameters are presented in this dissertation. The first one is a stochastic approach, based on artificial neural networks (ANNs) applied within a Bayesian framework. ANNs have been used before to derive soil hydraulic parameters from other more easily measured soil properties at matching scales. Here, ANNs were applied with different training and simulation scales. This concept was further extended to work within a Bayesian framework in order to provide estimates of uncertainty in such parameter estimations. Use of ancillary information such as elevation and vegetation data, in addition to the soil physical properties, were also tested. These multiscale pedotransfer function methods were successfully tested with numerical and field studies at different locations and scales. Most upscaling efforts thus far ignore the effect of the topography on the upscaled soil hydraulic parameter values. While this flat-terrain assumption is acceptable at coarse scales of a few hundred meters, at kilometer scales and beyond, the influence of the physical features cannot be ignored. anew upscaling scheme which accounts for variations in topography within a domain was developed to upscale soil hydraulic parameters to hill-slope (kilometer) scales. The algorithm was tested on different synthetically generated topographic configurations with good results. Extending the methodology to field conditions with greater complexities also produced good results. A comparison of different recently developed scaling schemes showed that at hill-slope scales, inclusion of topographic information produced better estimates of effective soil hydraulic parameters at that scale.

Belur Jana, Raghavendra

2010-05-01T23:59:59.000Z

265

Downstream hydraulic geometry relations: 2. Calibration and testing  

E-Print Network (OSTI)

Using 456 data sets under bank-full conditions obtained from various sources, the geometric relations, derived in part 1 [ Singh et al., 2003 ], are calibrated and verified using the split sampling approach. The calibration of parameters shows that the change in stream power is not shared equally among hydraulic variables and that the unevenness depends on the boundary conditions to be satisfied by the channel under consideration. The agreement between the observed values of the hydraulic variables and those predicted by the derived relations is close for the verification data set and lends credence to the hypotheses employed in this study.

Singh, Vijay P.; Yang, Chih Ted; Deng, Zhi-Qiang

2003-12-04T23:59:59.000Z

266

INVESTIGATIONS ON HYDRAULIC CEMENTS FROM SPENT OIL SHALE  

SciTech Connect

A process for making hydraulic cements from spent oil shale is described in this paper. Inexpensive cement is needed to grout abandoned in-situ retorts of spent shale for subsidence control, mitigation of leaching, and strengthening the retorted mass in order to recover oil from adjacent pillars of raw shale. A hydraulic cement was produced by heating a 1:1 mixture of Lurgi spent shale and CaCO{sub 3} at 1000 C for one hour. This cement would be less expensive than ordinary portland cement and is expected to fulfill the above requirements.

Mehta, P.K.; Persoff, P.

1980-04-01T23:59:59.000Z

267

Hydraulic manipulator design, analysis, and control at Oak Ridge National Laboratory  

Science Conference Proceedings (OSTI)

To meet the increased payload capacities demanded by present-day tasks, manipulator designers have turned to hydraulics as a means of actuation. Hydraulics have always been the actuator of choice when designing heavy-life construction and mining equipment such as bulldozers, backhoes, and tunneling devices. In order to successfully design, build, and deploy a new hydraulic manipulator (or subsystem) sophisticated modeling, analysis, and control experiments are usually needed. To support the development and deployment of new hydraulic manipulators Oak Ridge National Laboratory (ORNL) has outfitted a significant experimental laboratory and has developed the software capability for research into hydraulic manipulators, hydraulic actuators, hydraulic systems, modeling of hydraulic systems, and hydraulic controls. The hydraulics laboratory at ORNL has three different manipulators. First is a 6-Degree-of-Freedom (6-DoF), multi-planer, teleoperated, flexible controls test bed used for the development of waste tank clean-up manipulator controls, thermal studies, system characterization, and manipulator tracking. Finally, is a human amplifier test bed used for the development of an entire new class of teleoperated systems. To compliment the hardware in the hydraulics laboratory, ORNL has developed a hydraulics simulation capability including a custom package to model the hydraulic systems and manipulators for performance studies and control development. This paper outlines the history of hydraulic manipulator developments at ORNL, describes the hydraulics laboratory, discusses the use of the equipment within the laboratory, and presents some of the initial results from experiments and modeling associated with these hydraulic manipulators. Included are some of the results from the development of the human amplifier/de-amplifier concepts, the characterization of the thermal sensitivity of hydraulic systems, and end-point tracking accuracy studies. Experimental and analytical results are included.

Kress, R.L.; Jansen, J.F. [Oak Ridge National Lab., TN (United States). Robotics and Process Systems Div.; Love, L.J. [Oak Ridge Inst. for Science and Education, TN (United States); Basher, A.M.H. [South Carolina State Univ., Orangeburg, SC (United States)

1996-09-01T23:59:59.000Z

268

Development of a China Dataset of Soil Hydraulic Parameters Using Pedotransfer Functions for Land Surface Modeling  

Science Conference Proceedings (OSTI)

The objective of this study is to develop a dataset of the soil hydraulic parameters associated with two empirical soil functions (i.e., a water retention curve and hydraulic conductivity) using multiple pedotransfer functions (PTFs). The dataset ...

Yongjiu Dai; Wei Shangguan; Qingyun Duan; Baoyuan Liu; Suhua Fu; Guoyue Niu

2013-06-01T23:59:59.000Z

269

Comparison of Laboratory and Field Methods for Determining the Quasi-Saturated Hydraulic Conductivity of Soils  

E-Print Network (OSTI)

to atmospheric air. The soil sealing process decreases thesealing process begins, the hydraulic pressure drops below the airair is discharged from the soils; during the third stage, the hydraulic conductivity decreases to minimum values due to sealing

Faybishenko, Boris

1997-01-01T23:59:59.000Z

270

Joint Hydraulic Institute/ASAP Letter of March 30th - Clarification...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Joint Hydraulic InstituteASAP Letter of March 30th - Clarification of Point 2 Joint Hydraulic InstituteASAP Letter of March 30th - Clarification of Point 2 We would like to...

271

The Design and Qualification of a Hydraulic Hardware-in-the-Loop Simulator .  

E-Print Network (OSTI)

??The goal of this work was to design and evaluate a hydraulic Hardware-in-the-Loop (HIL) simulation system based around electric and hydraulic motors. The idea behind (more)

Driscoll, Scott Crawford

2005-01-01T23:59:59.000Z

272

A Java-based program for numerical computation of hydraulic shock  

Science Conference Proceedings (OSTI)

Numerical solving, by method of characteristics, of the hydraulic shock problem required to develop a computer program that automatically respond to the following requirements: easy management of several projects, easy introduction, editing and change ... Keywords: flowchart, graphical interface, hydraulic shock

Ichinur Omer; Cristina Serban

2010-05-01T23:59:59.000Z

273

Automatic hydraulic fracturing design for low permeability reservoirs using artificial intelligence  

Science Conference Proceedings (OSTI)

The hydraulic fracturing technique is one of the major developments in petroleum engineering in the last two decades. Today, nearly all the wells completed in low permeability gas reservoirs require a hydraulic fracturing treatment in order to produce ...

Andrei Sergiu Popa / Shahab Mohaghegh

2004-01-01T23:59:59.000Z

274

Proportional and Proportional-Integral Controllers for a Nonlinear Hydraulic  

E-Print Network (OSTI)

in a nonlinear hydraulic network of a reduced-size yet meaningful district heating system with two end correspondingly the controllers. In this paper we focus on one of these case studies, a district heating system to the system. Presently district heating systems are designed to meet the needs of a given number of end users

De Persis, Claudio

275

Hydraulic Control of Sill Flow with Bottom Friction  

Science Conference Proceedings (OSTI)

The hydraulics of strait and sill flow with friction is examined using a reduced gravity model. It is shown that friction moves the critical (or control) point from the sill to a location downstream. If the strait has constant width, the control ...

L. J. Pratt

1986-11-01T23:59:59.000Z

276

Gap Winds in a Fjord. Part II: Hydraulic Analog  

Science Conference Proceedings (OSTI)

A simple shallow-water model of gap wind in a channel that is based upon hydraulic theory is presented and compared with observations and output from a 3D mesoscale numerical model. The model is found to be successful in simulating gap winds. The ...

Peter L. Jackson; D. G. Steyn

1994-12-01T23:59:59.000Z

277

The Modeling of Slurry Friction Loss of Hydraulic Fracturing  

Science Conference Proceedings (OSTI)

In recent years, the research on theoretical model of hydraulic fracturing has experienced development. But there is little progress in the research on slurry friction loss in the fracturing string, which is the key to guide the design and construction ... Keywords: slurry, friction loss, momentum transfer

Yongming Li; Hu Mao; Fengsheng Yao; Song Wang; Jinzhou Zhao

2011-10-01T23:59:59.000Z

278

Multilayer Hydraulic Control with Application to the Alboran Sea Circulation  

Science Conference Proceedings (OSTI)

The flow of a single layer of fluid along a channel of variable dimensions is hydraulically controlled when long gravity waves can no longer propagate upstream at the cross-section of minimum area. For a multilayer fluid, it is shown that a ...

Nelson G. Hogg

1985-04-01T23:59:59.000Z

279

A Time-Dependent Aspect of Hydraulic Control in Straits  

Science Conference Proceedings (OSTI)

The concept of hydraulic control by a sill is discussed in terms of its consequences for the upstream flow. Based on observations of the upstream flow alone. control is shown to be distinguishable from noncontrol only if the flow is unsteady. ...

L. J. Pratt

1984-08-01T23:59:59.000Z

280

Time-Dependent Two-Layer Hydraulic Exchange Flows  

Science Conference Proceedings (OSTI)

A theory is presented for time-dependent two-layer hydraulic flows through straits. The theory is used to study exchange flows forced by a periodic barotropic (tidal) flow. For a given strait geometry the resulting flow is a function of two ...

Karl R. Helfrich

1995-03-01T23:59:59.000Z

Note: This page contains sample records for the topic "bucknell hydraulic flume" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


281

Control of a Hydraulically-Powered, Differential Lift Project Proposal  

E-Print Network (OSTI)

to raise and lower the load. A pump draws hydraulic oil from a reservoir through a four-port, three. As oil enters one side of the cylinder, oil exits the other side, passes through the valve, and drains leading from the pump through the valve and into the cylinder, such that (1) where p is the effort, p

282

On-site investigations and diagnosis of hydraulic structures  

SciTech Connect

Hydraulic structures (HSs) should be classified as complex engineering systems. It is difficult to imagine an absolutely reliable and safe engineering system. It is completely obvious that if such a system were possible, then economically it would not experience any competition with less reliable systems whose operation is organized in a certain way.

Vasilevskii, A.G.

1994-06-01T23:59:59.000Z

283

Validation of high performance pneumo-hydraulic shock absorbers  

Science Conference Proceedings (OSTI)

The paper discusses a theoretical and experimental approach to the validation of high performance shock absorbers, based on a flexible and innovative procedure. This type of components needs specific and unconventional tests, in order to detect the actual ... Keywords: oil-hydraulics, shock absorbers, validation, virtual instrumentation

Enrico Ravina

2006-02-01T23:59:59.000Z

284

Hydraulic Performance of a Multistage Array of Advanced Centrifugal Contactors  

Science Conference Proceedings (OSTI)

The hydraulic characteristics of an advanced design centrifugal contactor array have been determined at the Savannah River Laboratory (SRL). The advanced design utilizes couette mixing (Taylor vortices) in the annulus between the rotating and stationary bowls. Excellent phase separation over a wide range of flow conditions was obtained. Interfaces within an entire eight-stage array were controlled with a single weir air pressure.

Hodges, M.E.

2001-05-29T23:59:59.000Z

285

IOWA INSTITUTE OF HYDRAULIC RESEARCH THE UNIVERSITY OF IOWA  

E-Print Network (OSTI)

at Power Plants EPRIa Odgaard, Nakato Icing-Induced Vibration of Cables EPRIa Ettema, Nixon ** Hydraulic Patel ** Diffraction of Acoustic Waves by a Circular Disk of Arbitrary Impedance DTRC Chwang #12;Summary Structure, Spurlock Power Station EKP Nakato ** Consulting Services to Establish Value of Exploratory

Stanier, Charlie

286

Comments on Is the Faroe Bank Channel Overflow Hydraulically Controlled?  

Science Conference Proceedings (OSTI)

In a recent paper Girton et al., due to what appears to be a misunderstanding, stated that a critical-flow analysis of the deep-water transport through the Faroe Bank Channel had been undertaken by Lake et al. on the basis of rotating hydraulic ...

Linda Enmar; Karin Borens; Irne Lake; Peter Lundberg

2009-06-01T23:59:59.000Z

287

Marcellus Shale Drilling and Hydraulic Fracturing; Technicalities and  

E-Print Network (OSTI)

Marcellus Shale Drilling and Hydraulic Fracturing; Technicalities and Controversies Kyle J Ferrar;UNITED STATES SHALE BASINS Modern Shale Gas Development in the U.S.: A Primer, (2009) U.S. Dept of Energy Development http://www.secinfo.com/DB/SEC/2007 #12;Where to Drill? Harper, John A. (2008). The Marcellus Shale

Sibille, Etienne

288

Study on an Electric Drilling Rig with Hydraulic Energy Storage  

Science Conference Proceedings (OSTI)

An electric drilling rig with hydraulic energy storage is researched. This rig can recover the potential energy of the drill stem lowered and owns remarkable energy-saving effect. The mathematical model of the new rig lifting the drill stem was deduced ... Keywords: electric drilling rig, energy-recovering, energy-saving

Zhang Lujun

2010-06-01T23:59:59.000Z

289

Numerical Simulation Research on Proppant Transport in Hydraulic Fracture  

Science Conference Proceedings (OSTI)

Among the mathematical models of describing the prop pant settling or transport process, the particle settling velocity primarily takes the gravity, buoyancy and other conventional forces into consideration under the equilibrium condition of forces, ... Keywords: hydraulic fracturing, solid-liquid two phaes flow, proppant transport, numerical simulation, predictor-corrector method

Yongming Li; Song Wang; Jinzhou Zhao; Zhang Jiyao; Xiangzeng Wang; Ruimin Gao

2011-10-01T23:59:59.000Z

290

Engine having hydraulic and fan drive systems using a single high pressure pump  

DOE Patents (OSTI)

An engine comprises a hydraulic system attached to an engine housing that includes a high pressure pump and a hydraulic fluid flowing through at least one passageway. A fan drive system is also attached to the engine housing and includes a hydraulic motor and a fan which can move air over the engine. The hydraulic motor includes an inlet fluidly connected to the at least one passageway.

Bartley, Bradley E. (Manito, IL); Blass, James R. (Bloomington, IL); Gibson, Dennis H. (Chillicothe, IL)

2000-01-01T23:59:59.000Z

291

Hydraulic constraints on photosynthesis in subtropical evergreen broad leaf forest and pine woodland trees of the Florida Everglades  

E-Print Network (OSTI)

PAPER Hydraulic constraints on photosynthesis in subtropicalwater transport and photosynthesis represents the trade-offwater transport and photosynthesis to evaluate hydraulic

Jones, Tim J.; Luton, Corene D.; Santiago, Louis S.; Goldstein, Guillermo

2010-01-01T23:59:59.000Z

292

Investigation of Created Fracture Geometry through Hydraulic Fracture Treatment Analysis  

E-Print Network (OSTI)

Successful development of shale gas reservoirs is highly dependent on hydraulic fracture treatments. Many questions remain in regards to the geometry of the created fractures. Production data analysis from some shale gas wells quantifies a much smaller stimulated pore volume than what would be expected from microseismic evidence and reports of fracturing fluids reaching distant wells. In addition, claims that hydraulic fracturing may open or reopen a network of natural fractures is of particular interest. This study examines hydraulic fracturing of shale gas formations with specific interest in fracture geometry. Several field cases are analyzed using microseismic analysis as well as net pressure analysis of the fracture treatment. Fracture half lengths implied by microseismic events for some of the stages are several thousand feet in length. The resulting dimensions from microseismic analysis are used for calibration of the treatment model. The fracture profile showing created and propped fracture geometry illustrates that it is not possible to reach the full fracture geometry implied by microseismic given the finite amount of fluid and proppant that was pumped. The model does show however that the created geometry appears to be much larger than half the well spacing. From a productivity standpoint, the fracture will not drain a volume more than that contained in half of the well spacing. This suggests that for the case of closely spaced wells, the treatment size should be reduced to a maximum of half the well spacing. This study will provide a framework for understanding hydraulic fracture treatments in shale formations. In addition, the results from this study can be used to optimize hydraulic fracture treatment design. Excessively large treatments may represent a less than optimal approach for developing these resources.

Ahmed, Ibraheem 1987-

2012-12-01T23:59:59.000Z

293

On H8Robust Control for Hydraulic Servo System of Steam Turbine  

Science Conference Proceedings (OSTI)

Digital Electrical Hydraulic Servo System (DEH )of steam turbine has perfect performance, but it is difficult to format mathematical model accurately. Due to complexity of steam turbine and hydraulic servo system and the complex factors of applying field, ... Keywords: component, Steam turbine, hydraulic Servo System, H8 Robust control, hybrid Sensitiveness, disturbance

Lian-yu Chen

2010-06-01T23:59:59.000Z

294

HYDRAULIC FRACTURING AND OVERCORING STRESS MEASUREMENTS IN A DEEP BOREHOLE AT THE STRIPA TEST MINE, SWEDEN  

E-Print Network (OSTI)

9 - J u l y 2 , 1 9 8 1 HYDRAULIC FRACTURING AND OVERCORINGPfft IKS I nun LBL-12478 HYDRAULIC FRACTURING AND OVERCORINGs u r e s t r a i n s . Hydraulic f r a c t u r i n g , t h

Doe, T.

2010-01-01T23:59:59.000Z

295

Engine with hydraulic fuel injection and ABS circuit using a single high pressure pump  

DOE Patents (OSTI)

An engine system comprises a hydraulically actuated fuel injection system and an ABS circuit connected via a fluid flow passage that provides hydraulic fluid to both the fuel injection system and to the ABS circuit. The hydraulically actuated system includes a high pressure pump. The fluid control passage is in fluid communication with an outlet from the high pressure pump.

Bartley, Bradley E. (Manito, IL); Blass, James R. (Bloomington, IL); Gibson, Dennis H. (Chillicothe, IL)

2001-01-01T23:59:59.000Z

296

a review of 2 Shale gas extraction in the UK: a review of hydraulic fracturing  

E-Print Network (OSTI)

Shale gas extraction in the UK: a review of hydraulic fracturing June 2012 #12;2 Shale gas extraction in the UK: a review of hydraulic fracturing This document can be viewed online at: royalsociety.org/policy/projects/shale-gas-extraction and raeng.org.uk/shale Shale gas extraction in the UK: a review of hydraulic fracturing Issued: June 2012

Rambaut, Andrew

297

Prediction of effects of hydraulic fracturing using reservoir and well flow simulation  

Science Conference Proceedings (OSTI)

This paper presents a method to predict and evaluate effects of hydraulic fracturing jobs by using reservoir and well flow numerical simulation. The concept of the method i5 that steam production rate at the operating well head pressure is predicted with different fracture conditions which would be attained by the hydraulic fracturing jobs. Then, the effects of the hydraulic fracturing is evaluated by comparing the predicted steam production rate and that before the hydraulic fracturing. This course of analysis will suggest how large fracture should be created by the fracturing job to attain large enough increase in steam production at the operating condition and the best scheme of the hydraulic fracturing job.

Mineyuki Hanano; Tayuki Kondo

1992-01-01T23:59:59.000Z

298

Acceptance test report for the Westinghouse 100 ton hydraulic trailer  

DOE Green Energy (OSTI)

The SY-101 Equipment Removal System 100 Ton Hydraulic Trailer was designed and built by KAMP Systems, Inc. Performance of the Acceptance Test Procedure at KAMP`s facility in Ontario, California (termed Phase 1 in this report) was interrupted by discrepancies noted with the main hydraulic cylinder. The main cylinder was removed and sent to REMCO for repair while the trailer was sent to Lampson`s facility in Pasco, Washington. The Acceptance Test Procedure was modified and performance resumed at Lampson (termed Phase 2 in this report) after receipt of the repaired cylinder. At the successful conclusion of Phase 2 testing the trailer was accepted as meeting all the performance criteria specified.

Barrett, R.A.

1995-03-06T23:59:59.000Z

299

Massive hydraulic fracture of Fenton Hill HDR Well EE-3  

DOE Green Energy (OSTI)

Subsequent to a 5.6 million gallon massive hydraulic fracturing (MHF) experiment in Fenton Hill Hot Dry Rock (HDR) Well EE-2, a 2 million gallon MHF was planned for Well EE-3. Although hydraulic communication between wells EE-2 and EE-3 was not established during the initial MHF, a large reservoir was created around EE-2 which seemed to be in proximity with EE-3. The objective of this 2nd MHF was two-fold, to test the reservoir and seismic characteristics of the EE-3 openhole region from 11,390 to 11,770 ft and to drive fractures into the fractured region created earlier by the EE-2 MHF experiment. This paper discusses well repairs to prepare EE-3 for the MHF, the pumping operations, and injection parameters and briefly summarizes seismic results. 2 refs., 6 figs.

Dash, Z.V.; Dreesen, D.S.; Walter, F.; House, L.

1985-01-01T23:59:59.000Z

300

A Study of Hydraulic Fracturing Initiation in Transversely Isotropic Rocks  

E-Print Network (OSTI)

Hydraulic fracturing of transverse isotropic reservoirs is of major interest for reservoir stimulation and in-situ stress estimation. Rock fabric anisotropy not only causes in-situ stress anisotropy, but also affects fracture initiation from the wellbore. In this study a semi-analytical method is used to investigate these effects with particular reference to shale stimulation. Using simplifying assumptions, equations are derived for stress distribution around the wellbore's walls. The model is then used to study the fracture initiation pressure variations with anisotropy. A sensitivity analysis is carried out on the impact of Young's modulus and Poisson's ration, on the fracture initiation pressure. The results are useful in designing hydraulic fractures and also can be used to develop information about in-situ rock properties using failure pressure values observed in the field. Finally, mechanical and permeability anisotropy are measured using Pulse Permeameter and triaxial tests on Pierre shale.

Serajian, Vahid

2011-08-01T23:59:59.000Z

Note: This page contains sample records for the topic "bucknell hydraulic flume" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


301

Hydraulic Fracturing Data Collection Tools Improve Environmental Reporting,  

NLE Websites -- All DOE Office Websites (Extended Search)

8, 2013 8, 2013 Hydraulic Fracturing Data Collection Tools Improve Environmental Reporting, Monitoring, Protection Washington, D.C. -Two data collection tools specifically developed for hydraulic fracturing are available to help regulatory agencies monitor drilling and completion operations and enhance environmental protection. Developed with support from the U.S. Department of Energy's Office of Fossil Energy (FE), the Risk Based Data Management System (RBDMS) and FracFocus chemical disclosure registry (http://fracfocus.org/) provide a way for industry professionals, regulatory agencies and the general public to more easily access information on oil and natural gas activities. These reporting and data collection tools have been developed by the Groundwater Protection Council (GWPC) and various states.

302

DEVELOPMENT OF THE HELICAL REACTION HYDRAULIC TURBINE Final Technical Report  

Office of Scientific and Technical Information (OSTI)

DEVELOPMENT OF THE HELICAL REACTION HYDRAULIC TURBINE DEVELOPMENT OF THE HELICAL REACTION HYDRAULIC TURBINE Final Technical Report (DE-FGO1-96EE 15669) Project Period: 7/1/96 - 6/30/98 For submission to: The US Department of Energy, EE-20 1000 Independence Avenue, SW Washington, DC 20585 Attn: Mr. David Crouch Prepared by: Dr. Alexander Gorlov, PI MIME Department Northeastern University Boston, MA 02115 August, 1998 DISCLAIMER T h i s nport,was prepared as an account of work sponsored by an agency of the United States Government Neither the United States Government nor any agency thereof, nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or use- fulness of any information, apparatus, product, or process disclosed, or

303

ROC/RMOTC Hydraulic Pump Test Final Report  

NLE Websites -- All DOE Office Websites (Extended Search)

EXTREME EXTREME PETROLEUM TECHNOLOGY, INC. Petroleum Engineers Property Evaluation and Economics Reserves Estimates and Reports Well and Completion Design Reservoir and EOR Studies Expert Witness Testimony Regulatory Permitting Wellsite Management Coalbed Methane Final Report Roc Oil/RMOTC Hydraulic Pump Test For Mr. Bob Cook Roc Oil, Inc. Level 16 100 William Street, Sydney 2011 NSW Australia Office +61 2 8356 2059 Fax +61 2 9380 2066 BCook@rocoil.com.au 29 Oct 2004 159 N. Wolcott, Suite 100 PO Box 490 Casper, WY 82601 USA Phone (307)266-4498 Fax (307)266-4495 Web ExtremePetroTech.com ROC OIL/RMOTC HYDRAULIC PUMP TEST FINAL REPORT Executive Summary Roc Oil (ROC) has a majority interest and acts as Operator in a JV project (Cliff Head) in the Offshore

304

Hydraulic waste energy recovery, Phase 2. A technical report  

SciTech Connect

The energy required for booster station operation is supplied by the electrical utility company and has an associated cost. Energy removed by pressure reducing valves in the system is lost or wasted. The objective of this project is to capture the wasted hydraulic energy with in-line turbines. In this application, the in-line turbines act as pressure reducing valves while removing energy from the water distribution system and converting it to electrical energy. The North Service Center pumping station was selected for the pilot program due to the availability of a wide range in pressure drop and flow, which are necessary for hydraulic energy recovery. The research performed during this project resulted in documentation of technical, economic, installation, and operational information necessary for local government officials to make an informed judgement as it relates to in-line turbine generation.

1992-02-01T23:59:59.000Z

305

Hydraulic engine valve actuation system including independent feedback control  

DOE Patents (OSTI)

A hydraulic valve actuation assembly may include a housing, a piston, a supply control valve, a closing control valve, and an opening control valve. The housing may define a first fluid chamber, a second fluid chamber, and a third fluid chamber. The piston may be axially secured to an engine valve and located within the first, second and third fluid chambers. The supply control valve may control a hydraulic fluid supply to the piston. The closing control valve may be located between the supply control valve and the second fluid chamber and may control fluid flow from the second fluid chamber to the supply control valve. The opening control valve may be located between the supply control valve and the second fluid chamber and may control fluid flow from the supply control valve to the second fluid chamber.

Marriott, Craig D

2013-06-04T23:59:59.000Z

306

Monitoring the Width of Hydraulic Fractures With Ultrasonic Measurements  

E-Print Network (OSTI)

Introduction During hydraulic fracturing experiments in the laboratory the opening of hydraulic fractures is monitored with ultrasonic transducers. The experiment closely resembles seismic monitoring surveys in the field [MEADOWS AND WIN- TERSTEIN 1994, WILLS ET AL. 1992]. The extraction of information out of these experiments is critically dependent on the understanding of the elastodynamic behaviour of the thin fluid filled fractures. The laboratory experiments provide useful information on what determines the seismic visibility of these fractures, both for compressional and shear waves. The role of the fracture thickness or width on the elastodynamic response and a new method for monitoring fracture opening is investigated. Most theoretical approaches postulate the use of the classical boundary conditions. The void boundary condition assumes a stress free surface. The "fluid-filled" fracture boundary condition

J. Groenenboom; A.J.W. Duijndam; J.T. Fokkema

1995-01-01T23:59:59.000Z

307

Thermal Hydraulic Analysis of HTGR Coupled with Hydrogen Plant  

DOE Green Energy (OSTI)

The US Department of Energy is investigating the use of high-temperature gas-cooled reactors (HTGR) to produce electricity and hydrogen. Although the hydrogen production processes using the nuclear energy are in an early stage of development, coupling hydrogen plant to HTGR requires both efficient heat transfer and adequate separation of the facilities to assure that off-normal events in the production facility do not impact the nuclear plant. In anticipation of the design, development and procurement of an advanced power conversion system for HTGR, this study was initiated to identify the major design and technology options and their tradeoffs in the evaluation of power conversion system (PCS) coupled to hydrogen plant. In this study, we investigated a number of design configurations and performed thermal hydraulic analyses using various working fluids and various conditions. This paper includes a portion of thermal hydraulic results based on a direct cycle and a parallel intermediate heat exchanger (IHX) configuration option.

Chang Oh; Cliff Davis; Robert Barner; Paul Pickard

2006-06-01T23:59:59.000Z

308

Cooling Tower Energy Conservation Through Hydraulic Fan Drives  

E-Print Network (OSTI)

Many companies offer gearboxes, shafts, and couplings for cooling tower fan drives, with little or no innovation. These companies have traditionally been purchased with an emphasis on cost and not "Return on Investment!" In the past, when energy conservation or "Return on Investment" was emphasized, the only alternative was to add an expensive frequency inverter for variable speed control. This meant expensive rewiring, placing additional controls in an already crowded control room, or constructing a special building for them. However, with H.E.M.'s patented Hydraulic Fan Drive, one receives variable speed control and more efficiency for approximately the price of a mechanical drive. The new, more efficient Hydraulic Drive allows for a variable speed control and the ability to sense water temperature to control fan speed.

Dickerson, J.

1991-06-01T23:59:59.000Z

309

Method for enhancement of sequential hydraulic fracturing using control pulse fracturing  

Science Conference Proceedings (OSTI)

A method is described for creating multiple sequential hydraulic fractures via hydraulic fracturing combined with controlled pulse fracturing where two wells are utilized comprising: (a) drilling and completing a first and second well so that the wells will be in fluid communication with each other after subsequent fracturing in each well; (b) creating more than two simultaneous multiple vertical fractures via a controlled pulse fracturing method in the second well; (c) thereafter hydraulically fracturing the reservoir via the first well thereby creating fractures in the reservoir and afterwards shutting-in the first well without any induced pressure; (d) applying thereafter hydraulic pressure to the reservoir via the second well in an amount sufficient to fracture the reservoir thereby forming a first hydraulic fracture perpendicular to the least principal in-situ stress; (e) maintaining the hydraulic pressure on the reservoir while pumping via the second well alternate slugs of a thin-fluid spacer and a temporary blocking agent having a proppant therein whereupon a second hydraulic fracture is initiated; (f) maintaining the hydraulic pressure on the second well while pumping alternate slugs of spacer and blocking agent into the second hydraulic fracture thereby causing the second hydraulic fracture to propagate away from the first hydraulic fracture in step (e) in a curved trajectory which intersects a fracture created in the first well; (g) maintaining the hydraulic pressure while pumping as in step (f) whereupon another hydraulic fracture initiates causing another curved fracture trajectory to form and intersect the fracture created in the first well; and (h) repeated steps (f) and (g) until a desired number of hydraulic fractures are created which allows a substantial improvement in removing a natural resource from the reservoir.

Jennings, A.R. Jr.; Strubhar, M.K.

1993-07-20T23:59:59.000Z

310

Unsaturated hydraulic conductivity of compacted sand-kaolin mixtures  

SciTech Connect

The unsaturated hydraulic conductivity of compacted sand-kaolin mixtures containing 0, 5, 10, and 30% kaolin (by dry weight) is measured for matric suctions, {psi}{sub m} < {approximately} 6.0 m. The measured unsaturated hydraulic conductivity (k{sub m}) values are compared with predicted unsaturated hydraulic conductivity (k{sub p}) values using the Brooks-Corey-Burdine and van Genuchten-Mualem relative hydraulic conductivity functions. In general, the accuracy of k{sub p} decreases with an increase in kaolin content or an increase in {psi}{sub m}. In addition, k{sub m} tends to be underpredicted for kaolin contents of 10 and 30% at relatively high suctions (1.0 m {le} {psi}{sub m} {le} 6.0 m) and overpredicted for kaolin contents of 0 and 5% at relatively low suctions (0.1 m {le} {psi}{sub m} < 1.0 m). For a given kaolin content and {psi}{sub m}, k{sub p} based on the Brooks-Corey-Burdine function tends to be more accurate than k{sub m} based on the van Genuchten-Mualem function. Finally, for 1.0 m {le} {psi}{sub m} {le} 6.0 m, k{sub p} based on analysis using the maximum volumetric water content ({theta}{sub m}) attained under steady-state flow conditions typically is more accurate than k{sub p} based on analysis using the saturated volumetric water content, {theta}{sub s}, where {theta}{sub m} {approximately} 84--90% of {theta}{sub s} in this study.

Chiu, T.F. [Genesis Group, Taipei (Taiwan, Province of China); Shackelford, C.D. [Colorado State Univ., Fort Collins, CO (United States). Dept. of Civil Engineering

1998-02-01T23:59:59.000Z

311

Hydraulic fracturing and propping tests at Yakedake field in Japan  

DOE Green Energy (OSTI)

Hydraulic fracturing experiments have been conducted at Yakedake field in Gifu prefecture, Japan. From the data obtained during the fracturing operation, the open-hole section permeability was estimated of the wellbore, the minimum pressure required to propagate the fracture, the impedances before and after the propping, and the earth stress normal to the fracture plane. The final fracture plane was also mapped with the microseismic events.

Yamaguchi, Tsutomu; Seo, Kunio; Suga, Shoto; Itoh, Toshinobu; Kuriyagawa, Michio

1984-01-01T23:59:59.000Z

312

THERMAL HYDRAULIC ANALYSIS OF A GAS TEST LOOP SYSTEM  

Science Conference Proceedings (OSTI)

This paper discusses thermal hydraulic calculations for a Gas Test Loop (GTL) system designed to provide a high intensity fast-flux irradiation environment for testing fuels and materials for advanced concept nuclear reactors. To assess the performance of candidate reactor fuels, these fuels must be irradiated under actual fast reactor flux conditions and operating environments, preferably in an existing irradiation facility [1]. Potential users of the GTL include the Generation IV Reactor Program, the Advanced Fuel Cycle Initiative and Space Nuclear Programs.

Donna Post Guillen; James E. Fisher

2005-11-01T23:59:59.000Z

313

Circular hydraulic jump in generalized-Newtonian fluids  

E-Print Network (OSTI)

We carry out an analytical study of laminar circular hydraulic jumps, in generalized-Newtonian fluids obeying the two-parametric power-law model of Ostwald-de Waele. Under the boundary-layer approximation we obtained exact expressions determining the flow, an implicit relation for the jump radius is derived. Corresponding results for Newtonian fluids can be retrieved as a limiting case for the flow behavior index n=1, predictions are made for fluids deviating from Newtonian behavior.

Rai, Ashutosh; Poria, Swarup

2008-01-01T23:59:59.000Z

314

The feasibility of hydraulic energy recovery from geopressured- geothermal resources  

DOE Green Energy (OSTI)

This report presents the results of a study conducted by the Idaho National Engineering Laboratory (INEL) for DOE on the application of hydraulic energy recovery from geopressured-geothermal resources. The report examines both the technical and economic feasibility. Previous reports and demonstrations of geopressured-geothermal energy have been directed to the recovery of heat and methane. This report is specifically directed to extracting the pressure component of a typical reservoir. The pressure energy available in a 220 psia geopressured fluid could yield 1.49 W{center dot}h per pound and an average well could produce 500kW. The best available device for recovering this energy is a Pelton turbine. Commercial Pelton turbines are not available for this application but are technically feasible. Suitable turbines could be developed with first of a kind engineering and tooling costs of approximately $227,000. The breakeven cost to add conversion of hydraulic energy to an existing methane/heat recovery system would be $0.030 per kWh based on a 10 year lifetime. Development testing is necessary to understand the effect of the dissolved gases, verify cavitation suppression, and materials selection. Cavitation suppression would be provided by utilizing the gas backpressure of the dissolved methane and carbon dioxide that exists in the geofluid. It is estimated that adding conversion of hydraulic energy to an operating system recovering heat and methane could reduce the overall cost of electrical production by about 1.5 cents per kWh. This is not a viable stand-alone system is the well costs are to be born by the conversion of hydraulic energy alone. 5 refs., 4 figs., 2 tabs.

Thurston, G.C.; Plum, M.M.

1991-09-01T23:59:59.000Z

315

Mathematical modeling of hydraulic fracturing in coal seams  

Science Conference Proceedings (OSTI)

Hydraulic fracturing of coal seam is considered as a process of development of discontinuities in rock mass elements due to change in hydrogeomechanical situation on filtration of fluid under pressure. Failure is associated with excess of the effective stresses over the rock tension strength. The problem on filtration and failure of massif is solved by the finite-element method using the procedure of fictitious nodal forces.

Olovyanny, A.G. [All Russian Science Research Institute for Mine Surveying, St. Petersburg (Russian Federation)

2005-02-01T23:59:59.000Z

316

Heat or cold storage composition containing a hydrated hydraulic cement  

SciTech Connect

A polyphase composition for the storage of heat or cold is disclosed that utlizes the latent heat of fusion of a salt hydrate continuous phase intimately intermixed with a hydrated hydraulic cement continuous phase and wherein said continuous phases are optionally in contact with a discontinuous crystalline phase comprising a nucleating component and wherein the composition is enveloped, contained, or packaged within a vapor impermeable material.

Boardman, B.J.

1981-07-07T23:59:59.000Z

317

Advanced geothermal hydraulics model -- Phase 1 final report, Part 2  

DOE Green Energy (OSTI)

An advanced geothermal well hydraulics model (GEODRIL) is being developed to accurately calculate bottom-hole conditions in these hot wells. In Phase 1, real-time monitoring and other improvements were added to GEODRIL. In Phase 2, GEODRIL will be integrated into Marconi's Intelligent Drilling Monitor (IDM) that will use artificial intelligence to detect lost circulation, fluid influxes and other circulation problems in geothermal wells. This software platform has potential for significantly reducing geothermal drilling costs.

W. Zheng; J. Fu; W. C. Maurer

1999-07-01T23:59:59.000Z

318

Nanocoatings for High-Efficiency Industrial Hydraulic and Tooling Systems  

Science Conference Proceedings (OSTI)

Industrial manufacturing in the U.S. accounts for roughly one third of the 98 quadrillion Btu total energy consumption. Motor system losses amount to 1.3 quadrillion Btu, which represents the largest proportional loss of any end-use category, while pumps alone represent over 574 trillion BTU (TBTU) of energy loss each year. The efficiency of machines with moving components is a function of the amount of energy lost to heat because of friction between contacting surfaces. The friction between these interfaces also contributes to downtime and the loss of productivity through component wear and subsequent repair. The production of new replacement parts requires additional energy. Among efforts to reduce energy losses, wear-resistant, low-friction coatings on rotating and sliding components offer a promising approach that is fully compatible with existing equipment and processes. In addition to lubrication, one of the most desirable solutions is to apply a protective coating or surface treatment to rotating or sliding components to reduce their friction coefficients, thereby leading to reduced wear. Historically, a number of materials such as diamond-like carbon (DLC), titanium nitride (TiN), titanium aluminum nitride (TiAlN), and tungsten carbide (WC) have been examined as tribological coatings. The primary objective of this project was the development of a variety of thin film nanocoatings, derived from the AlMgB14 system, with a focus on reducing wear and friction in both industrial hydraulics and cutting tool applications. Proof-of-concept studies leading up to this project had shown that the constituent phases, AlMgB14 and TiB2, were capable of producing low-friction coatings by pulsed laser deposition. These coatings combine high hardness with a low friction coefficient, and were shown to substantially reduce wear in laboratory tribology tests. Selection of the two applications was based largely on the concept of improved mechanical interface efficiencies for energy conservation. In mobile hydraulic systems, efficiency gains through low friction would translate into improved fuel economy and fewer greenhouse gas emissions. Stationary hydraulic systems, accordingly, would consume less electrical power. Reduced tooling wear in machining operations would translate to greater operating yields, while lowering the energy consumed during processing. The AlMgB14 nanocoatings technology progressed beyond baseline laboratory tests into measurable energy savings and enhancements to product durability. Three key hydraulic markets were identified over the course of the project that will benefit from implementation: industrial vane pumps, orbiting valve-in-star hydraulic motors, and variable displacement piston pumps. In the vane pump application, the overall product efficiency was improved by as much as 11%. Similar results were observed with the hydraulic motors tested, where efficiency gains of over 10% were noted. For variable displacement piston pumps, overall efficiency was improved by 5%. For cutting tools, the most significant gains in productivity (and, accordingly, the efficiency of the machining process as a whole) were associated with the roughing and finishing of titanium components for aerospace systems. Use of the AlMgB14 nanocoating in customer field tests has shown that the coated tools were able to withstand machining rates as high as 500sfm (limited only by the substrate material), with relatively low flank wear when compared to other industrial offerings. AlMgB14 coated tools exhibited a 60% improvement over similarly applied TiAlN thin films. Furthermore, AlMgB14-based coatings in these particular tests lasted twice as long than their TiAlN counterparts at the 500sfm feed rates. Full implementation of the technology into the industrial hydraulic and cutting tool markets equates to a worldwide energy savings of 46 trillion BTU/year by 2030. U.S.-based GHG emissions associated with the markets identified would fall accordingly, dropping by as much as 50,000 tonnes annually.

Clifton B. Higdon III

2011-01-07T23:59:59.000Z

319

Method and tool for contracting tubular members by electro-hydraulic forming before hydroforming  

SciTech Connect

A tubular preform is contracted in an electro-hydraulic forming operation. The tubular preform is wrapped with one or more coils of wire and placed in a chamber of an electro-hydraulic forming tool. The electro-hydraulic forming tool is discharged to form a compressed area on a portion of the tube. The tube is then placed in a hydroforming tool that expands the tubular preform to form a part.

Golovashchenko, Sergey Fedorovich (Beverly Hills, MI)

2011-03-15T23:59:59.000Z

320

Estimating uncertainty in thermal-hydraulic codes using the linear variate method  

Science Conference Proceedings (OSTI)

Thermal-hydraulic codes are subject o uncertainties that must be considered in determining whether safety criteria are satisfied in nuclear reactors. Uncertainties correspond to parameters in a thermal-hydraulic model. A thermal-hydraulic model is typically a nonlinear, discontinuous function of the uncertainties. Evaluating the effect of the uncertainties is difficult. This paper describes an efficient Monte Carlo method for determining the effect of the uncertainties.

Kubic, W.L. Jr. (Los Alamos National Laboratory, NM (USA)); White, A.M. (Westinghouse Savannah River Company, Aiken, SC (USA))

1989-11-01T23:59:59.000Z

Note: This page contains sample records for the topic "bucknell hydraulic flume" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


321

Specification of Surface Roughness for Hydraulic Flow Test Plates  

Science Conference Proceedings (OSTI)

A study was performed to determine the surface roughness of the corrosion layer on aluminum clad booster fuel plates for the proposed Gas Test Loop (GTL) system to be incorporated into the Advanced Test Reactor (ATR) at the Idaho National Laboratory. A layer of boehmite (a crystalline, non-porous gamma-alumina hydrate) is typically pre-formed on the surface of the fuel cladding prior to exposure to reactor operation to prevent the uncontrolled buildup of corrosion product on the surface. A representative sample coupon autoclaved with the ATR driver fuel to produce the boehmite layer was analyzed using optical profilometry to determine the mean surface roughness, a parameter that can have significant impact on the coolant flow past the fuel plates. This information was used to specify the surface finish of mockup fuel plates for a hydraulic flow test model. The purpose of the flow test is to obtain loss coefficients describing the resistance of the coolant flow paths, which are necessary for accurate thermal hydraulic analyses of the water-cooled booster fuel assembly. It is recommended that the surface roughness of the boehmite layer on the fuel cladding be replicated for the flow test. While it is very important to know the order of magnitude of the surface roughness, this value does not need to be matched exactly. Maintaining a reasonable dimensional tolerance for the surface finish on each side of the 12 mockup fuel plates would ensure relative uniformity in the flow among the four coolant channels. Results obtained from thermal hydraulic analyses indicate that 15% deviation from a surface finish (i.e., Ra) of 0.53 m would have a minimal effect on coolant temperature, coolant flow rate, and fuel temperature.

Donna Post Guillen; Timothy S. Yoder

2006-05-01T23:59:59.000Z

322

Thermal Hydraulic Effect of Fuel Plate Surface Roughness  

Science Conference Proceedings (OSTI)

This study presents surface roughness measurements characteristic of the pre-film layer applied to a typical Advanced Test Reactor (ATR) fuel plate. This data is used to estimate the friction factor for thermal hydraulic flow calculations of a Gas Test Loop (GTL) system proposed for incorporation into ATR to provide a fast neutron flux environment for the testing of nuclear fuels and materials. To attain the required neutron flux, the design includes booster fuel plates clad with the same aluminum alloy as the ATR driver fuel and cooled with water supplied by the ATR primary coolant pumps. The objectives of this study are to: (1) determine the surface roughness of the protective boehmite layer applied to the ATR driver fuel prior to reactor operations in order to specify the machining tolerances for the surface finish on simulated booster fuel plates in a GTL hydraulic flow test model, and (2) assess the consequent thermal hydraulic impact due to surface roughness on the coolability of the booster fuel with a similar pre-film layer applied. While the maximum roughness of this coating is specified to be 1.6 m (63 microinches), no precise data on the actual roughness were available. A representative sample coupon autoclaved with the ATR driver fuel to produce the pre-film coating was analyzed using optical profilometry. Measurements yielded a mean surface roughness of 0.53 m (21 microinches). Results from a sensitivity study show that a 15% deviation from the mean measured surface finish would have a minimal effect on coolant temperature, coolant flow rate, and fuel temperature. However, frictional losses from roughnesses greater than 1.5 m (~60 microinches) produce a marked decrease in flow rate, causing fuel and coolant temperatures to rise sharply.

Donna Post Guillen; Timothy S. Yoder

2008-09-01T23:59:59.000Z

323

Functional Analysis and Thermal-Hydraulics Program Plan  

SciTech Connect

The purpose of this document is to set forth the Program Plan for the Functional Analysis and Thermal-Hydraulics (FA TH) Program (herein after referred to as the [open quotes]Program[close quotes]) for the 5 year period covering fiscal years 1992 thru 1996. Specifically, the actions planned by the Safety Analysis Group (SAG) of the Reactor Safety Research Section within SRTC will be identified, defined, and a schedule and resource projection presented. This document will be used by the Reactor Safety Research Section management as the baseline definition for the Program's scope, schedule and cost. Annual budget and staffing requests will be submitted based on this approved baseline. Status reporting and progress monitoring will be performed against this approved baseline. This Program plan will be revised as needed to reflect the changes that come about due to Program redirection. The Program's primary mission is to provide further assurance that the Savannah River Site K-Reactor is designed, modified, operated and maintained in a safe, cost-effective manner through application of functional analysis methodology and continued development of thermal hydraulic support capabilities. It is envisioned that the Program will continue throughout the operating life of K-Reactor and have a permanent staff of eight: one lead and seven engineers. The Program has two primary elements; (1) functional analysis, and (2) thermal-hydraulics. Functional analysis is the first element of the formal Systems Engineering Process. Systems Engineering methodology is commonly applied in both commercial and military programs, particularly where the needs of the program involve complex interrelationships between hardware, software, personnel, and support facilities. It has been extensively used in development of military systems, and in the commercial sector in the development of designs for nuclear power reactors.

Paik, I.K.; Lord, R.; Parks, B.

1992-03-27T23:59:59.000Z

324

Functional Analysis and Thermal-Hydraulics Program Plan  

SciTech Connect

The purpose of this document is to set forth the Program Plan for the Functional Analysis and Thermal-Hydraulics (FA&TH) Program (herein after referred to as the {open_quotes}Program{close_quotes}) for the 5 year period covering fiscal years 1992 thru 1996. Specifically, the actions planned by the Safety Analysis Group (SAG) of the Reactor Safety Research Section within SRTC will be identified, defined, and a schedule and resource projection presented. This document will be used by the Reactor Safety Research Section management as the baseline definition for the Program`s scope, schedule and cost. Annual budget and staffing requests will be submitted based on this approved baseline. Status reporting and progress monitoring will be performed against this approved baseline. This Program plan will be revised as needed to reflect the changes that come about due to Program redirection. The Program`s primary mission is to provide further assurance that the Savannah River Site K-Reactor is designed, modified, operated and maintained in a safe, cost-effective manner through application of functional analysis methodology and continued development of thermal hydraulic support capabilities. It is envisioned that the Program will continue throughout the operating life of K-Reactor and have a permanent staff of eight: one lead and seven engineers. The Program has two primary elements; (1) functional analysis, and (2) thermal-hydraulics. Functional analysis is the first element of the formal Systems Engineering Process. Systems Engineering methodology is commonly applied in both commercial and military programs, particularly where the needs of the program involve complex interrelationships between hardware, software, personnel, and support facilities. It has been extensively used in development of military systems, and in the commercial sector in the development of designs for nuclear power reactors.

Paik, I.K.; Lord, R.; Parks, B.

1992-03-27T23:59:59.000Z

325

INL Experimental Program Roadmap for Thermal Hydraulic Code Validation  

DOE Green Energy (OSTI)

Advanced computer modeling and simulation tools and protocols will be heavily relied on for a wide variety of system studies, engineering design activities, and other aspects of the Next Generation Nuclear Power (NGNP) Very High Temperature Reactor (VHTR), the DOE Global Nuclear Energy Partnership (GNEP), and light-water reactors. The goal is for all modeling and simulation tools to be demonstrated accurate and reliable through a formal Verification and Validation (V&V) process, especially where such tools are to be used to establish safety margins and support regulatory compliance, or to design a system in a manner that reduces the role of expensive mockups and prototypes. Recent literature identifies specific experimental principles that must be followed in order to insure that experimental data meet the standards required for a benchmark database. Even for well conducted experiments, missing experimental details, such as geometrical definition, data reduction procedures, and manufacturing tolerances have led to poor Benchmark calculations. The INL has a long and deep history of research in thermal hydraulics, especially in the 1960s through 1980s when many programs such as LOFT and Semiscle were devoted to light-water reactor safety research, the EBRII fast reactor was in operation, and a strong geothermal energy program was established. The past can serve as a partial guide for reinvigorating thermal hydraulic research at the laboratory. However, new research programs need to fully incorporate modern experimental methods such as measurement techniques using the latest instrumentation, computerized data reduction, and scaling methodology. The path forward for establishing experimental research for code model validation will require benchmark experiments conducted in suitable facilities located at the INL. This document describes thermal hydraulic facility requirements and candidate buildings and presents examples of suitable validation experiments related to VHTRs, sodium-cooled fast reactors, and light-water reactors. These experiments range from relatively low-cost benchtop experiments for investigating individual phenomena to large electrically-heated integral facilities for investigating reactor accidents and transients.

Glenn McCreery; Hugh McIlroy

2007-09-01T23:59:59.000Z

326

Application of hydraulically assembled shaft coupling hubs to large agitators  

SciTech Connect

This paper describes the basis for and implementation of hydraulically assembled shaft coupling hubs for large tank-mounted agitators. This modification to the original design was intended to minimize maintenance personnel exposure to ionizing radiation and also provide for disassembly capability without damage to shafts or hubs. In addition to realizing these objectives, test confirmed that the modified couplings reduced agitator shaft end runouts approximately 65%, thereby reducing bearing loads and increasing service life, a significant enhancement for a nuclear facility. 5 refs.

Murray, W.E.; Anderson, T.D. [Bechtel National, Inc., Aiken, SC (United States); Bethmann, H.K. [Westinghouse Savannah River Co., Aiken, SC (United States)

1991-12-31T23:59:59.000Z

327

Application of hydraulically assembled shaft coupling hubs to large agitators  

SciTech Connect

This paper describes the basis for and implementation of hydraulically assembled shaft coupling hubs for large tank-mounted agitators. This modification to the original design was intended to minimize maintenance personnel exposure to ionizing radiation and also provide for disassembly capability without damage to shafts or hubs. In addition to realizing these objectives, test confirmed that the modified couplings reduced agitator shaft end runouts approximately 65%, thereby reducing bearing loads and increasing service life, a significant enhancement for a nuclear facility. 5 refs.

Murray, W.E.; Anderson, T.D. (Bechtel National, Inc., Aiken, SC (United States)); Bethmann, H.K. (Westinghouse Savannah River Co., Aiken, SC (United States))

1991-01-01T23:59:59.000Z

328

Advanced Hydraulic Fracturing Technology for Unconventional Tight Gas Reservoirs  

Science Conference Proceedings (OSTI)

The objectives of this project are to develop and test new techniques for creating extensive, conductive hydraulic fractures in unconventional tight gas reservoirs by statistically assessing the productivity achieved in hundreds of field treatments with a variety of current fracturing practices ranging from 'water fracs' to conventional gel fracture treatments; by laboratory measurements of the conductivity created with high rate proppant fracturing using an entirely new conductivity test - the 'dynamic fracture conductivity test'; and by developing design models to implement the optimal fracture treatments determined from the field assessment and the laboratory measurements. One of the tasks of this project is to create an 'advisor' or expert system for completion, production and stimulation of tight gas reservoirs. A central part of this study is an extensive survey of the productivity of hundreds of tight gas wells that have been hydraulically fractured. We have been doing an extensive literature search of the SPE eLibrary, DOE, Gas Technology Institute (GTI), Bureau of Economic Geology and IHS Energy, for publicly available technical reports about procedures of drilling, completion and production of the tight gas wells. We have downloaded numerous papers and read and summarized the information to build a database that will contain field treatment data, organized by geographic location, and hydraulic fracture treatment design data, organized by the treatment type. We have conducted experimental study on 'dynamic fracture conductivity' created when proppant slurries are pumped into hydraulic fractures in tight gas sands. Unlike conventional fracture conductivity tests in which proppant is loaded into the fracture artificially; we pump proppant/frac fluid slurries into a fracture cell, dynamically placing the proppant just as it occurs in the field. From such tests, we expect to gain new insights into some of the critical issues in tight gas fracturing, in particular the roles of gel damage, polymer loading (water-frac versus gel frac), and proppant concentration on the created fracture conductivity. To achieve this objective, we have designed the experimental apparatus to conduct the dynamic fracture conductivity tests. The experimental apparatus has been built and some preliminary tests have been conducted to test the apparatus.

Stephen Holditch; A. Daniel Hill; D. Zhu

2007-06-19T23:59:59.000Z

329

Linear hydraulic drive system for a Stirling engine  

SciTech Connect

A hydraulic drive system operating from the periodic pressure wave produced by a Stirling engine along a first axis thereof and effecting transfer of power from the Stirling engine to a load apparatus therefor and wherein the movable, or working member of the load apparatus is reciprocatingly driven along an axis substantially at right angles to the first axis to achieve an arrangement of a Stirling engine and load apparatus assembly which is much shorter and the components of the load apparatus more readily accessible. 2 figs.

Walsh, M.M.

1984-02-21T23:59:59.000Z

330

Advance plant severe accident/thermal hydraulic issues for ACRS  

DOE Green Energy (OSTI)

The ACRS has been reviewing various advance plant designs for certification. The most active reviews have been for the ABWR, AP600, and System 80+. We have completed the reviews for ABWR and System 80+ and are presently concentrating on AP600. The ACRS gave essentially unqualified certification approval for the two completed reviews, yet,,during the process of review a number of issues arose and the plant designs changed somewhat to accommodate some of the ACRS concerns. In this talk, I will describe some of the severe accident and thermal hydraulic related issues we discussed in our reviews.

Kress, T.S.

1994-09-01T23:59:59.000Z

331

A PKN Hydraulic Fracture Model Study and Formation Permeability Determination  

E-Print Network (OSTI)

Hydraulic fracturing is an important method used to enhance the recovery of oil and gas from reservoirs, especially for low permeability formations. The distribution of pressure in fractures and fracture geometry are needed to design conventional and unconventional hydraulic fracturing operations, fracturing during water-flooding of petroleum reservoirs, shale gas, and injection/extraction operation in a geothermal reservoir. Designing a hydraulic fracturing job requires an understanding of fracture growth as a function of treatment parameters. There are various models used to approximately define the development of fracture geometry, which can be broadly classified into 2D and 3D categories. 2D models include, the Perkins-Kern-Nordgren (PKN) fracture model, and the Khristianovic-Geertsma-de. Klerk (KGD) fracture model, and the radial model. 3D models include fully 3D models and pseudo-three-dimensional (P-3D) models. The P-3D model is used in the oil industry due to its simplification of height growth at the wellbore and along the fracture length in multi-layered formations. In this research, the Perkins-Kern-Nordgren (PKN) fracture model is adopted to simulate hydraulic fracture propagation and recession, and the pressure changing history. Two different approaches to fluid leak-off are considered, which are the classical Carter's leak-off theory with a constant leak-off coefficient, and Pressure-dependent leak-off theory. Existence of poroelastic effect in the reservoir is also considered. By examining the impact of leak-off models and poroelastic effects on fracture geometry, the influence of fracturing fluid and rock properties, and the leak-off rate on the fracture geometry and fracturing pressure are described. A short and wide fracture will be created when we use the high viscosity fracturing fluid or the formation has low shear modulus. While, the fracture length, width, fracturing pressure, and the fracture closure time increase as the fluid leak-off coefficient is decreased. In addition, an algorithm is developed for the post-fracture pressure-transient analysis to calculate formation permeability. The impulse fracture pressure transient model is applied to calculate the formation permeability both for the radial flow and linear fracture flow assumption. Results show a good agreement between this study and published work.

Xiang, Jing

2011-12-01T23:59:59.000Z

332

Scientific aspects of hydraulic engineering in the Extreme North  

SciTech Connect

Information relative to participation of the B. E. Vedeneev All-Russian Scientific-Research Institute of Hydraulic Engineering (VNIIG im. B. E. Vedeneeva) in the solution of problems of scientific verification of the design, construction, and operation of water-development works in regions of the Extreme North are presented. Basic characteristics of changes in the technical condition of high rock-and-earthfill dams, and the conditions under which their safety is ensured for long-term service in these regions are examined.

Panov, S. I.; Krivonogova, N. F.

2012-03-15T23:59:59.000Z

333

Numerical Investigation of Interaction Between Hydraulic Fractures and Natural Fractures  

E-Print Network (OSTI)

Hydraulic fracturing of a naturally-fractured reservoir is a challenge for industry, as fractures can have complex growth patterns when propagating in systems of natural fractures in the reservoir. Fracture propagation near a natural fracture (NF) considering interaction between a hydraulic fracture (HF) and a pre-existing NF, has been investigated comprehensively using a two dimensional Displacement Discontinuity Method (DDM) Model in this thesis. The rock is first considered as an elastic impermeable medium (with no leakoff), and then the effects of pore pressure change as a result of leakoff of fracturing fluid are considered. A uniform pressure fluid model and a Newtonian fluid flow model are used to calculate the fluid flow, fluid pressure and width distribution along the fracture. Joint elements are implemented to describe different NF contact modes (stick, slip, and open mode). The structural criterion is used for predicting the direction and mode of fracture propagation. The numerical model was used to first examine the mechanical response of the NF to predict potential reactivation of the NF and the resultant probable location for fracture re-initiation. Results demonstrate that: 1) Before the HF reaches a NF, the possibility of fracture re-initiation across the NF and with an offset is enhanced when the NF has weaker interfaces; 2) During the stage of fluid infiltration along the NF, a maximum tensile stress peak can be generated at the end of the opening zone along the NF ahead of the fluid front; 3) Poroelastic effects, arising from fluid diffusion into the rock deformation can induce closure and compressive stress at the center of the NF ahead of the HF tip before HF arrival. Upon coalescence when fluid flows along the NF, the poroelastic effects tend to reduce the value of the HF aperture and this decreases the tension peak and the possibility of fracture re-initiation with time. Next, HF trajectories near a NF were examined prior to coalesce with the NF using different joint, rock and fluid properties. Our analysis shows that: 1) Hydraulic fracture trajectories near a NF may bend and deviate from the direction of the maximum horizontal stress when using a joint model that includes initial joint deformation; 2) Hydraulic fractures propagating with higher injection rate or fracturing fluid of higher viscosity propagate longer distance when turning to the direction of maximum horizontal stress; 3) Fracture trajectories are less dependent on injection rate or fluid viscosity when using a joint model that includes initial joint deformation; whereas, they are more dominated by injection rate and fluid viscosity when using a joint model that excludes initial joint deformation.

Xue, Wenxu

2010-12-01T23:59:59.000Z

334

Capsule injection system for a hydraulic capsule pipelining system  

DOE Patents (OSTI)

An injection system for injecting capsules into a hydraulic capsule pipelining system, the pipelining system comprising a pipeline adapted for flow of a carrier liquid therethrough, and capsules adapted to be transported through the pipeline by the carrier liquid flowing through the pipeline. The injection system comprises a reservoir of carrier liquid, the pipeline extending within the reservoir and extending downstream out of the reservoir, and a magazine in the reservoir for holding capsules in a series, one above another, for injection into the pipeline in the reservoir. The magazine has a lower end in communication with the pipeline in the reservoir for delivery of capsules from the magazine into the pipeline.

Liu, Henry (Columbia, MO)

1982-01-01T23:59:59.000Z

335

Interwell tracer analyses of a hydraulically fractured granitic geothermal reservoir  

DOE Green Energy (OSTI)

Field experiments using fluorescent dye and radioactive tracers (Br{sup 82} and I{sup 131}) have been employed to characterize a hot, low-matrix permeability, hydraulically-fractured granitic reservoir at depths of 2440 to 2960 m (8000 to 9700 ft). Tracer profiles and residence time distributions have been used to delineate changes in the fracture system, particularly in diagnosing pathological flow patterns and in identifying new injection and production zones. The effectiveness of one- and two-dimensional theoretical dispersion models utilizing single and multiple porous, fractured zones with velocity and formation dependent effects are discussed with respect to actual field data.

Tester, J.W.; Potter, R.M.; Bivins, R.L.

1979-01-01T23:59:59.000Z

336

Linear hydraulic drive system for a Stirling engine  

DOE Patents (OSTI)

A hydraulic drive system operating from the periodic pressure wave produced by a Stirling engine along a first axis thereof and effecting transfer of power from the Stirling engine to a load apparatus therefor and wherein the movable, or working member of the load apparatus is reciprocatingly driven along an axis substantially at right angles to the first axis to achieve an arrangement of a Stirling engine and load apparatus assembly which is much shorter and the components of the load apparatus more readily accessible.

Walsh, Michael M. (Schenectady, NY)

1984-02-21T23:59:59.000Z

337

Upgrading the HFIR Thermal-Hydraulic Legacy Code Using COMSOL  

Science Conference Proceedings (OSTI)

Modernization of the High Flux Isotope Reactor (HFIR) thermal-hydraulic (TH) design and safety analysis capability is an important step in preparation for the conversion of the HFIR core from a high enriched uranium (HEU) fuel to a low enriched uranium (LEU) fuel. Currently, an important part of the HFIR TH analysis is based on the legacy Steady State Heat Transfer Code (SSHTC), which adds much conservatism to the safety analysis. The multi-dimensional multi-physics capabilities of the COMSOL environment allow the analyst to relax the number and magnitude of conservatisms, imposed by the SSHTC, to present a more physical model of the TH aspect of the HFIR.

Bodey, Isaac T [ORNL; Arimilli, Rao V [ORNL; Freels, James D [ORNL

2010-01-01T23:59:59.000Z

338

Coupled 3D hydrodynamic models for submarine outfalls. Denvironmental hydraulic design and control of multiport diffusers.  

E-Print Network (OSTI)

??The book describes the hydraulic design and environmental impact prediction technologies for such installations. Focus are the hydrodynamics approached by computer models. First, a multiport (more)

Bleninger, Tobias

2007-01-01T23:59:59.000Z

339

In Situ Characterization of Unsaturated Soil Hydraulic Properties at the Maricopa Environmental Monitoring Site.  

E-Print Network (OSTI)

??Characterization of the unsaturated hydraulic properties is fundamental in modeling soil water flow and contaminant transport in the vadose zone. The objective of this study (more)

Graham, Aaron Robert.

2004-01-01T23:59:59.000Z

340

Condition monitoring of internal leakage in modern water hydraulic cylinders using acoustic emission.  

E-Print Network (OSTI)

??This research aims to develop a sensitive method for condition monitoring of internal leakage in a modem water hydraulic cylinder by means of acoustic emission (more)

Chen, Ping.

2009-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "bucknell hydraulic flume" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


341

Influence of boundary conditions on the hydraulic-mechanical behaviour of an unsaturated swelling soil.  

E-Print Network (OSTI)

??The hydraulic-mechanical behaviour of swelling clay is examined in this thesis. The study includes laboratory testing and numerical modeling which considers the influence of boundary (more)

Siemens, Gregory Allen

2006-01-01T23:59:59.000Z

342

Hydraulic Conductivity, Infiltration, and Runoff from No-till and Tilled Cropland.  

E-Print Network (OSTI)

??Infiltration and runoff are important processes that affect the efficiency of center pivot irrigation systems. No-till planting systems potentially influence the hydraulic properties of soils (more)

Deck, Jessica H

2010-01-01T23:59:59.000Z

343

Automatic hydraulic fracturing design for low permeability reservoirs using artificial intelligence.  

E-Print Network (OSTI)

??The hydraulic fracturing technique is one of the major developments in petroleum engineering in the last two decades. Today, nearly all the wells completed in (more)

Popa, Sergui Andrei, 1970-

2004-01-01T23:59:59.000Z

344

INTERPRETATION OF HYDRAULIC FRACTURING PRESSURE IN LOW-PERMEABILITY GAS RESERVOIRS.  

E-Print Network (OSTI)

??Hydraulic fracturing has been used in most oil and gas wells to increase production by creating fractures that extend from the wellbore into the formation. (more)

Kim, Gun Ho

2010-01-01T23:59:59.000Z

345

Experimental Analysis of the Flow, Pressure, Speed, and Torque Characteristics of Two Eaton Geroler Hydraulic Motors.  

E-Print Network (OSTI)

??This paper presents data collected examining the flow, pressure, speed, and torque characteristics of two Eaton Geroler hydraulic motors. A test installation was designed and (more)

Cazaban, Philip M.

2011-01-01T23:59:59.000Z

346

Evaluation of the vertical and horizontal hydraulic conductivities of household wastes.  

E-Print Network (OSTI)

??Hydraulic conductivity is a measurement of the ease of movement of a fluid through a medium and is therefore a key parameter in the design (more)

Hudson, Andrew Philip

2007-01-01T23:59:59.000Z

347

Hydraulic fracture productivity performance in tight gas sands, a numerical simulation approach.  

E-Print Network (OSTI)

??Hydraulically fractured tight gas reservoirs are one of the most common unconventional sources being produced today, and look to be a regular source of gas (more)

Ostojic, Jakov

2013-01-01T23:59:59.000Z

348

Hydraulic characterization of Midnite Mine, Wellpinit, WA: Summary of 1994 field season. Report of investigations/1996  

Science Conference Proceedings (OSTI)

The Midnite Mine is an inactive uranium mine on the Spokane Indian Reservation in Wasington State. Preliminary results of hydraulic stress tests performed in the bedrock at the site are described. Slug tests and pumping tests were conducted using preexisting USBM monitoring wells. Slug test results were used to generate hydraulic conductivity estimates for fractured and unfractured intrusives. The pumping tests demonstrated varying degrees of spatial continuity. Hydraulically continuous fractured zones along north-south planes were demonstrated in two cases for distances of 90 and 116 m (300 and 380 ft). The short-term pumping tests provided no evidence of east-west hydraulic continuity in fractured zones.

Williams, B.C.; Riley, J.A.

1996-06-01T23:59:59.000Z

349

Seismic studies of a massive hydraulic fracturing experiment  

DOE Green Energy (OSTI)

During a massive hydraulic fracturing experiment carried out at Fenton Hill, New Mexico, 850 microearthquakes, ranging in magnitudes from -3 to 0, were located reliably using arrival times recorded at a set of 5 downhole geophone stations. A subset of these events were located using an upgraded hodogram technique. The seismicity defines a tabular zone with horizontal extent of 900 m, vertical extent of 800 m, and thickness of 150 m. This zone strikes N340/sup 0/E, and dips 75/sup 0/ to the east; its position indicates that no hydraulic connection between the two predrilled wells could be achieved by the fracturing. The distribution of locations obtained from arrival times shows good agreement with those derived from hodograms. Well constrained fault plane solutions were determined for 26 of the larger microearthquakes observed at a surface seismic net. Most solutions display one nearly vertical nodal plane that strikes close to N - S, and a T axis that trends roughly E - W, in agreement with regional indicators of the least principal stress direction. 9 refs., 6 figs.

House, L.; Keppler, H.; Kaieda, H.

1985-01-01T23:59:59.000Z

350

Hydraulic fracture experiments in GT-1 and GT-2  

DOE Green Energy (OSTI)

Hydraulic fracturing experiments were conducted in granite rock, at temperatures near 100 and 150/sup 0/C, in two wells 0.785 km (2575 ft) and 1.98 km (6500 ft) deep near Los Alamos, New Mexico. No unusual difficulty was observed in fracturing crystalline rock hydraulically. The apparent surface energy (energy required to create new fracture surface by breaking the rock) was measured as 100 J/m/sup 2/. Orientation of the deeper fracture was measured as N35/sup 0/E (+-5/sup 0/). The fraction of fluid injected into the rock that could be recovered at hydrostatic surface pressure was measured. The efficiency of recovery was as high as 92 percent after the fracture impedance was lowered by ''propping'' the fracture with sand. Permeability of the rock over the face of the fracture was compatible with laboratory measurements (10/sup -7/ to 10/sup -8/ darcys). Downhole pressures required to extend the fractures were about 150 and 340 bars (2175 and 4900 psi), respectively.

Aamodt, R.L.

1977-02-01T23:59:59.000Z

351

Hydraulic fracturing method employing a fines control technique  

SciTech Connect

A method is described for controlling fines or sand in an unconsolidated or loosely consolidated formation or reservoir penetrated by at least one wellbore where hydraulic fracturing is used in combination with control of the critical salinity rate and the critical fluid flow velocity. The method comprises: (a) placing at least one wellbore in the reservoir; (b) hydraulically fracturing the formation via the wellbore with a fracturing fluid which creates at least one fracture; (c) placing a proppant comprising a gravel pack into the fracture; (d) determining the critical salinity rate and the critical fluid flow velocity of the formation or reservoir surrounding the wellbore; (e) injecting a saline solution into the formation or reservoir at a velocity exceeding the critical fluid flow velocity and at a saline concentration sufficient to cause the fines or particles to be transferred and fixed deep wihtin the formation or reservoir without plugging the formation, fracture, or wellbore; and (f) producing a hydrocarbonaceous fluid from the formation or reservoir at a velocity such that the critical flow velocity is not exceeded deep within the formation, fracture, or wellbore.

Stowe, L.R.

1986-11-18T23:59:59.000Z

352

Hydraulic fracturing of a moderate permeability reservoir, Kuparuk River Unit  

SciTech Connect

Sixty-five percent of the proven reserves in one of the United States' largest oil fields, the Kuparuk River Unit, are contained in the lower of two producing horizons. This zone, commonly referred to as the ''A'' sand, has a permeability of between 30 and 100 md. Unfortunately this interval is easily damaged during drilling and completion operations. Low initial flow efficiencies have been confirmed by numerous pressure transient tests. A program of hydraulic fracturing was initiated in March 1984 to overcome near wellbore damage and provide stimulation to more efficiently tap ''A'' sand reserves. More than 300 fracture stimulations have been completed to date in the arctic setting of the Kuparuk River Unit. These jobs have used a variety of fluids, proppants, and pumping schedules. The current hydraulic fracture design was evolved by continual interpretation of field results and related data from these previous stimulations. Success of the overall program has been impressive. Average post-fracture flow efficiency has been in excess of 100%. Post-fracture rate increase has averaged approximately 300%, accounting for a total rate increase of over 125,000 BOPD (19,900 m/sup 3//d). Based on these results, fracturing will continue to play an important part in future field development. This paper is the first review of the Kuparuk River Unit fracture program. It provides a case history of the development of a standard fracture design. In addition, the findings of this study would be applicable to reservoirs elsewhere with similar characteristics.

Niemeyer, B.L.; Reinart, M.R.

1986-01-01T23:59:59.000Z

353

Hydraulically-actuated operating system for an electric circuit breaker  

DOE Patents (OSTI)

This hydraulically-actuated operating system comprises a cylinder, a piston movable therein in an opening direction to open a circuit breaker, and an accumulator for supplying pressurized liquid to a piston-actuating space within the cylinder. A normally-closed valve between the accumulator and the actuating space is openable to allow pressurized liquid from the accumulator to flow through the valve into the actuating space to drive the piston in an opening direction. A vent is located hydraulically between the actuating space and the valve for affording communication between said actuating space and a low pressure region. Flow control means is provided for restricting leakage through said vent to a rate that prevents said leakage from substantially detracting from the development of pressure within said actuatng space during the period from initial opening of the valve to the time when said piston has moved through most of its opening stroke. Following such period and while the valve is still open, said flow control means allows effective leakage through said vent. The accumulator has a limited capacity that results in the pressure within said actuating space decaying promptly to a low value as a result of effective leakage through said vent after the piston has moved through a circuit-breaker opening stroke and while the valve is in its open state. Means is provided for resetting the valve to its closed state in response to said pressure decay in the actuating space.

Barkan, Philip (Media, PA); Imam, Imdad (Secane, PA)

1978-01-01T23:59:59.000Z

354

In-Plant Testing of High-Efficiency Hydraulic Separators  

SciTech Connect

Hydraulic separators are commonly used for particle size classification and gravity concentration of minerals and coal. Unfortunately, the efficiency of these processes can be quite low due to poor equipment design and variations in feed consistency. To help alleviate these problems, an industry-driven R&D program has been undertaken to develop a new generation of hydraulic separators that are more efficient and less costly to operate and maintain. These units, which are commercially called the CrossFlow separator and HydroFloat separator, have the potential to improve performance (separation efficiency and throughput) and reduce operating costs (power consumption, water and reagent usage). In Phase I of this project, laboratory and pilot-scale test units were evaluated at various industrial sites in both the coal and mineral industries. Based on promising results obtained from Phase I, full-scale prototypes were purchased and installed by a major U.S. phosphate producer and a large eastern U.S. coal company. The test data obtained from these sites demonstrate that significant performance improvements can be realized through the application of these high-efficiency separators.

G. H. Luttrell; R. Q. Honaker; R. C. Bratton; T. C. Westerfield; J. N. Kohmuench

2006-06-30T23:59:59.000Z

355

IN-PLANT TESTING OF HIGH-EFFICIENCY HYDRAULIC SEPARATORS  

SciTech Connect

Hydraulic separators are commonly used for particle size classification and gravity concentration of minerals and coal. Unfortunately, the efficiency of these processes can be quite low due to poor equipment design and variations in feed consistency. To help alleviate these problems, an industry-driven R&D program has been undertaken to develop a new generation of hydraulic separators that are more efficient and less costly to operate and maintain. These units, which are commercially called the CrossFlow separator and HydroFloat separator, have the potential to improve performance (separation efficiency and throughput) and reduce operating costs (power consumption, water and reagent usage). In Phase I of this project, laboratory and pilot-scale test units were evaluated at various industrial sites in both the coal and mineral industries. Based on promising results obtained from Phase I, full-scale prototypes were purchased and installed by a major U.S. phosphate producer and a large eastern U.S. coal company. The test data obtained from these sites demonstrate that significant performance improvements can be realized through the application of these high-efficiency separators.

G.H. Luttrell; R.Q. Honaker; R.C. Bratton; T.C. Westerfield; J.N. Kohmuench

2006-05-22T23:59:59.000Z

356

Hydraulic head interpolation using anfis-model selection and sensitivity analysis  

Science Conference Proceedings (OSTI)

The aim of this study is to investigate the efficiency of anfis (adaptive neuro fuzzy inference system) for interpolating hydraulic head in a 40-km^2 agricultural watershed of the Seine basin (France). Inputs of anfis are Cartesian coordinates and the ... Keywords: Hydraulic head, Hydrogeology, Sensitivity analysis, Spatial interpolation, anfis

Bedri Kurtulus; Nicolas Flipo

2012-01-01T23:59:59.000Z

357

New Experimental Studies of Thermal-Hydraulics of Rod Bundles (NESTOR)  

Science Conference Proceedings (OSTI)

The NESTOR (New Experimental Studies of Thermal-hydraulics of Rod Bundles) project is a multi-year collaborative endeavor of EPRI, Electricit de France (EDF), and Commissariat lEnergie Atomique (CEA). The project is aimed at elucidating thermal-hydraulics unknowns pertaining to axial offset anomaly (AOA) in pressurized water reactor (PWR) cores.

2008-12-22T23:59:59.000Z

358

An efficient design pattern algorithm for the environmental and hydrologic/hydraulic ubiquitous model developments  

Science Conference Proceedings (OSTI)

In this paper, we propose an efficient design pattern algorithm for the environmental and hydrologic/hydraulic ubiquitous model developments which specifies pattern names for retrieving, exploring the adapted patterns on the stage of design without pattern ... Keywords: composite design pattern, environmental, hydrologic/hydraulic, pattern, pattern names

Hyung Moo Kim; Jae Soo Yoo

2009-08-01T23:59:59.000Z

359

New Idea for Hydraulic Testing Machine with Stress and Strain Rates Controlled and its Realization  

Science Conference Proceedings (OSTI)

Based on the relationship between pressure and flux of thin-walled hole, a new idea is proposed for hydraulic testing machine. Using transducer and computer technique, hydraulic system is formed by SCM(single chip micyoco), needle valve, frequency converter ... Keywords: testing machine, stress rate, strain rate, needle valves

Du Jingqing; Gao Shiqiao; Niu Shaohua

2010-05-01T23:59:59.000Z

360

Research on Maintenance Optimization for Steam Turbine Digital Electro-Hydraulic Control System  

Science Conference Proceedings (OSTI)

As the substitute of mechanical hydraulic governing system, steam turbine digital electro-hydraulic control system presents different maintenance characteristics. If the traditional maintenance strategy is still adopted, that is the replacement or inspection ... Keywords: DEH control system, maintenance optimization, risk evaluation, fault tree

Zhenhe Wang; Shaocong Guo

2009-11-01T23:59:59.000Z

Note: This page contains sample records for the topic "bucknell hydraulic flume" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


361

The Direct Neural Control Applied to the Position Control in Hydraulic Servo System  

Science Conference Proceedings (OSTI)

This study utilizes the direct neural control (DNC) based on back propagation neural networks (BPN) with specialized learning architecture applied to control the position of a cylinder rod in an electro-hydraulic servo system (EHSS). The proposed neural ... Keywords: Back propagation, Electro-hydraulic servo system, Neural networks, Position control

Yuan Kang; Yi-Wei Chen; Yeon-Pun Chang; Ming-Huei Chu

2008-09-01T23:59:59.000Z

362

Modeling and Parameter Optimization for an Articulating Electro Hydraulic Forest Machinery  

Science Conference Proceedings (OSTI)

This paper focuses on modeling and parameter estimation for the electro hydraulic actuation system of an articulated forestry machine. The linear graph method is implemented in deriving mathematical models of the swing, boom and stick subsystems. Actuation ... Keywords: Forest Machinery, Articulating Electro Hydraulic, Parameter Optimization

Wei-Zhan Guo; Liu-Jin Hao; Yu Ying; Wu-Jia Di

2010-01-01T23:59:59.000Z

363

Engine having a high pressure hydraulic system and low pressure lubricating system  

DOE Patents (OSTI)

An engine includes a high pressure hydraulic system having a high pressure pump and at least one hydraulically-actuated device attached to an engine housing. A low pressure engine lubricating system is attached to the engine housing and includes a circulation conduit fluidly connected to an outlet from the high pressure pump.

Bartley, Bradley E. (Manito, IL); Blass, James R. (Bloomington, IL); Gibson, Dennis H. (Chillicothe, IL)

2000-01-01T23:59:59.000Z

364

Analysis of dynamic characteristics of single piston hydraulic free piton engine  

Science Conference Proceedings (OSTI)

The operation theory of the single piston hydraulic free piston engine (SPHFPE) was introduced and was simplified as a gas spring-mass system. The mathematics model of the gas spring rate vs. displacement was set up. The equivalent spring rate and frequency ... Keywords: AMESim, dynamic characteristic, equivalent spring rate, hydraulic free piston engine (HFPE), spring-mass system

Haoling Ren; Haibo Xie; Huayong Yang

2010-11-01T23:59:59.000Z

365

New Experimental Studies of Thermal-Hydraulics in Rod Bundles (NESTOR)  

Science Conference Proceedings (OSTI)

The NESTOR (New Experimental Studies of Thermal-Hydraulics of Rod Bundles) project is a multiyear collaborative endeavor of EPRI, Electricitde France (EDF), and Commissariat l'Energie Atomique (CEA). The project is aimed at elucidating thermal-hydraulics unknowns pertaining to axial offset anomaly (AOA) in pressurized water reactor (PWR) cores.

2006-12-19T23:59:59.000Z

366

Dynamic Response Analysis of Underground Powerhouse Structures Considering Coupling Effects of Hydraulic Impulse and Dynamic Loads  

Science Conference Proceedings (OSTI)

When accident takes place in hydropower generator units, they transit from normal working condition to accident working condition. During this period, the generator pier structures bear coupling effect of dynamic load from the units and hydraulic impulse ... Keywords: underground powerhouse structure, unit dynamic load, hydraulic impulse, coupling effect, dynamic analysis

Li Xiaoli; Yuan Chaoqing; Li Ke; Li Yujie

2012-05-01T23:59:59.000Z

367

Numerical simulation of hydraulic shock in a water pumping system protected by air  

Science Conference Proceedings (OSTI)

Air may be efficiently used in water pumping system protection from hydraulic shock, due to its elasticity. The paper presents the results regarding the extreme pressures in the discharge duct of a pumping installation, obtained by numerical simulation ... Keywords: air chamber, biphasic flow, dissolution, hydraulic shock, pumping installation

Anca Constantin; Claudiu Stefan Nitescu

2010-10-01T23:59:59.000Z

368

New Experimental Studies of Thermal-Hydraulics of Rod Bundles (NESTOR)  

Science Conference Proceedings (OSTI)

NESTOR (New Experimental Studies of Thermal-hydraulics of Rod Bundles) project is a multiyear collaborative endeavor of EPRI, Electricite de France (EDF), and Commissariat a l'Energie Atomique (CEA). The project is aimed at elucidating thermal-hydraulics unknowns pertaining to the problem of axial offset anomaly (AOA) in PWR cores.

2005-12-05T23:59:59.000Z

369

Vorticity Generation in the Shallow-Water Equations as Applied to Hydraulic Jumps  

Science Conference Proceedings (OSTI)

The authors attempt to find a bridge between the vorticity dynamics of a finite cross-stream length hydraulic jump implied by the Navier-Stokes equations and that given by the shallow-water approximation (SWA) with the turbulence of the hydraulic ...

Richard Rotunno; Piotr K. Smolarkiewicz

1995-02-01T23:59:59.000Z

370

Surrogate-based optimization of hydraulic fracturing in pre-existing fracture networks  

Science Conference Proceedings (OSTI)

Hydraulic fracturing has been used widely to stimulate production of oil, natural gas, and geothermal energy in formations with low natural permeability. Numerical optimization of fracture stimulation often requires a large number of evaluations of objective ... Keywords: Fractal dimension, Global sensitivity, Hydraulic fracturing, Optimization, Surrogate model

Mingjie Chen, Yunwei Sun, Pengcheng Fu, Charles R. Carrigan, Zhiming Lu, Charles H. Tong, Thomas A. Buscheck

2013-08-01T23:59:59.000Z

371

A Thermoelastic Hydraulic Fracture Design Tool for Geothermal Reservoir Development  

DOE Green Energy (OSTI)

Geothermal energy is recovered by circulating water through heat exchange areas within a hot rock mass. Geothermal reservoir rock masses generally consist of igneous and metamorphic rocks that have low matrix permeability. Therefore, cracks and fractures play a significant role in extraction of geothermal energy by providing the major pathways for fluid flow and heat exchange. Thus, knowledge of conditions leading to formation of fractures and fracture networks is of paramount importance. Furthermore, in the absence of natural fractures or adequate connectivity, artificial fracture are created in the reservoir using hydraulic fracturing. At times, the practice aims to create a number of parallel fractures connecting a pair of wells. Multiple fractures are preferred because of the large size necessary when using only a single fracture. Although the basic idea is rather simple, hydraulic fracturing is a complex process involving interactions of high pressure fluid injections with a stressed hot rock mass, mechanical interaction of induced fractures with existing natural fractures, and the spatial and temporal variations of in-situ stress. As a result it is necessary to develop tools that can be used to study these interactions as an integral part of a comprehensive approach to geothermal reservoir development, particularly enhanced geothermal systems. In response to this need we have set out to develop advanced thermo-mechanical models for design of artificial fractures and rock fracture research in geothermal reservoirs. These models consider the significant hydraulic and thermo-mechanical processes and their interaction with the in-situ stress state. Wellbore failure and fracture initiation is studied using a model that fully couples poro-mechanical and thermo-mechanical effects. The fracture propagation model is based on a complex variable and regular displacement discontinuity formulations. In the complex variable approach the displacement discontinuities are defined from the numerical solution of a complex hypersingular integral equation written for a given fracture configuration and loading. The fracture propagation studies include modeling interaction of induced fractures with existing discontinuities such as faults and joints. In addition to the fracture propagation studies, two- and three-dimensional heat extraction solution algorithms have been developed and used to estimate heat extraction and the variations of the reservoir stress with cooling. The numerical models have been developed in a user-friendly environment to create a tool for improving fracture design and investigating single or multiple fracture propagation in rock.

Ahmad Ghassemi

2003-06-30T23:59:59.000Z

372

Effective Hydraulic Parameters in Horizontally and Vertically Heterogeneous Soils for Steady-State LandAtmosphere Interaction  

Science Conference Proceedings (OSTI)

In this study, the authors investigate effective soil hydraulic parameter averaging schemes for steady-state flow in heterogeneous shallow subsurfaces useful to landatmosphere interaction modeling. Effective soil hydraulic parameters of the ...

Binayak P. Mohanty; Jianting Zhu

2007-08-01T23:59:59.000Z

373

TITAN : an advanced three dimensional coupled neutronicthermal-hydraulics code for light water nuclear reactor core analysis  

E-Print Network (OSTI)

The accurate analysis of nuclear reactor transients frequently requires that neutronics, thermal-hydraulics and feedback be included. A number of coupled neutronics/thermal-hydraulics codes have been developed for this ...

Griggs, D. P.

1984-01-01T23:59:59.000Z

374

Estimating fracture apertures from hydraulic data and comparison with theory  

DOE Green Energy (OSTI)

Estimates of fracture openings, or apertures, were made for massive hydraulic fracture experiments at the Hot Dry Rock geothermal reservoir at Fenton Hill, New Mexico. The basis of these estimates is that if the injection rate is suddenly increased during fracturing, and the subsequent pressure increase to sustain this additional flow is measured, then the pressure increase must be related to the fracture aperture. More detailed considerations indicate that the fracture aperture estimated in this manner is affected by the nature of the fracture geometry, its propagation distance, and its viscous characteristics, but these effects are surprisingly unimportant. The result is a reasonably accurate aperture estimate, which considering the elusive nature of this measurement by other means, is quite satisfactory. These estimates are in good agreement with the fracturing theory of Geertsma and de Klerk. 10 refs., 6 figs.

Dash, Z.V.; Murphy, H.D.

1985-01-01T23:59:59.000Z

375

Hydraulic accumulator-compressor for geopressured enhanced oil recovery  

DOE Patents (OSTI)

A hydraulic accumulator-compressor vessel using geothermal brine under pressure as a piston to compress waste (CO.sub.2 rich) gas is used in a system having a plurality of gas separators in tandem to recover pipeline quality gas from geothermal brine. A first high pressure separator feeds gas to a membrance separator which separates low pressure waste gas from high pressure quality gas. A second separator produces low pressure waste gas. Waste gas from both separators is combined and fed into the vessel through a port at the top as the vessel is drained for another compression cycle. High pressure brine is then admitted into the vessel through a port at the bottom of the vessel. Check valves control the flow of low pressure waste gas into the vessel and high pressure waste gas out of the vessel.

Goldsberry, Fred L. (Spring, TX)

1988-01-01T23:59:59.000Z

376

Hydraulic External Pre-Isolator System for LIGO  

E-Print Network (OSTI)

The Hydraulic External Pre-Isolator (HEPI) is the first 6 degrees of freedom active seismic isolation system implemented at the Laser Interferometer Gravitational Wave Observatory (LIGO). Implementation was first completed at the LIGO Livingston Observatory (LLO) prior to LIGO's 5th science run, successfully cutting down the disturbance seen by LLO's suspended optics in the two most prominent seismic disturbance bands, the microseism (0.1-0.3Hz) and the anthropogenic (1-3Hz) bands, by a factor of a few to tens. The improvement in seismic isolation contributed directly to LLO's much improved duty cycle of 66.7% and LIGO's triple coincident duty cycle of 53%. We report the design, control scheme, and isolation performance of HEPI at LLO in this paper. Aided with this success, funding for incorporating HEPI into the LIGO Hanford Observatory was approved and installation is currently underway.

S. Wen; R. Mittleman; K. Mason; J. Giaime; R. Abbott; J. Kern; B. O'Reilly; R. Bork; M. Hammond; C. Hardham; B. Lantz; W. Hua; D. Coyne; G. Traylor; H. Overmier; T. Evans; J. Hanson; O. Spjeld; M. Macinnis; K. Mailand; D. Sellers; K. Carter; P. Sarin

2013-09-23T23:59:59.000Z

377

Progress toward using hydraulic data to diagnose lost circulation zones  

DOE Green Energy (OSTI)

Several wellbore hydraulic models have been examined to determine their applicability in measuring the characteristics of lost circulation zones encountered in geothermal drilling. Characteristics such as vertical location in the wellbore, fracture size, effective permeability, and formation pressure must be known in order to optimize treatment of such zones. The models that have been examined to date are a steady-state model, a standpipe-pressure model, a raising-the-drill-bit model, a mud-weight model, a hydrofracture model, and several time-dependent models. None of these models yet have been found to adequately match the field data obtained from six loss zones in three geothermal wells. The development of these models is presented in this paper, and a discussion of their limitations is provided.

Mansure, A.J.; Glowka, D.A.

1995-07-01T23:59:59.000Z

378

Hydraulic External Pre-Isolator System for LIGO  

E-Print Network (OSTI)

The Hydraulic External Pre-Isolator (HEPI) is the first 6 degrees of freedom active seismic isolation system implemented at the Laser Interferometer Gravitational Wave Observatory (LIGO). Implementation was first completed at the LIGO Livingston Observatory (LLO) prior to LIGO's 5th science run, successfully cutting down the disturbance seen by LLO's suspended optics in the two most prominent seismic disturbance bands, the microseism (0.1-0.3Hz) and the anthropogenic (1-3Hz) bands, by a factor of a few to tens. The improvement in seismic isolation contributed directly to LLO's much improved duty cycle of 66.7% and LIGO's triple coincident duty cycle of 53%. We report the design, control scheme, and isolation performance of HEPI at LLO in this paper. Aided with this success, funding for incorporating HEPI into the LIGO Hanford Observatory was approved and installation is currently underway.

Wen, S; Mason, K; Giaime, J; Abbott, R; Kern, J; O'Reilly, B; Bork, R; Hammond, M; Hardham, C; Lantz, B; Hua, W; Coyne, D; Traylor, G; Overmier, H; Evans, T; Hanson, J; Spjeld, O; Macinnis, M; Mailand, K; Sellers, D; Carter, K; Sarin, P

2013-01-01T23:59:59.000Z

379

Sensitivity study on hydraulic well testing inversion using simulated annealing  

DOE Green Energy (OSTI)

For environmental remediation, management of nuclear waste disposal, or geothermal reservoir engineering, it is very important to evaluate the permeabilities, spacing, and sizes of the subsurface fractures which control ground water flow. Cluster variable aperture (CVA) simulated annealing has been used as an inversion technique to construct fluid flow models of fractured formations based on transient pressure data from hydraulic tests. A two-dimensional fracture network system is represented as a filled regular lattice of fracture elements. The algorithm iteratively changes an aperture of cluster of fracture elements, which are chosen randomly from a list of discrete apertures, to improve the match to observed pressure transients. The size of the clusters is held constant throughout the iterations. Sensitivity studies using simple fracture models with eight wells show that, in general, it is necessary to conduct interference tests using at least three different wells as pumping well in order to reconstruct the fracture network with a transmissivity contrast of one order of magnitude, particularly when the cluster size is not known a priori. Because hydraulic inversion is inherently non-unique, it is important to utilize additional information. The authors investigated the relationship between the scale of heterogeneity and the optimum cluster size (and its shape) to enhance the reliability and convergence of the inversion. It appears that the cluster size corresponding to about 20--40 % of the practical range of the spatial correlation is optimal. Inversion results of the Raymond test site data are also presented and the practical range of spatial correlation is evaluated to be about 5--10 m from the optimal cluster size in the inversion.

Nakao, Shinsuke; Najita, J.; Karasaki, Kenzi

1997-11-01T23:59:59.000Z

380

Transient Thermal, Hydraulic, and Mechanical Analysis of a Counter Flow Offset Strip Fin Intermediate Heat Exchanger using an Effective Porous Media Approach.  

E-Print Network (OSTI)

??This work presents a comprehensive thermal hydraulic analysis of a compact heat exchanger using offset strip fins. The thermal hydraulics analysis in this work is (more)

Urquiza, Eugenio

2009-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "bucknell hydraulic flume" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


381

Hydraulic turbine governing system identification using T-S fuzzy model optimized by chaotic gravitational search algorithm  

Science Conference Proceedings (OSTI)

Hydraulic turbine governing system (HTGS) is a complicated nonlinear system that controls the frequency and power output of hydroelectric generating unit (HGU). The modeling of HTGS is an important and difficult task, because some components, like hydraulic ... Keywords: Chaotic gravitational search algorithm, Fuzzy c-regression model, Heuristic algorithms, Hydraulic turbine governing system, System identification, Takagi-Sugeno model

Chaoshun Li, Jianzhong Zhou, Jian Xiao, Han Xiao

2013-10-01T23:59:59.000Z

382

Design of control system for hydraulic lifting platform with jack-up wind-power installation vessel  

Science Conference Proceedings (OSTI)

Jack-up wind-power installation vessel is the most important tool in construction of wind farm. And the control system for hydraulic lifting platform is the key point of jack-up wind-power installation vessel. Therefore the design of the control system ... Keywords: hydraulic control, hydraulic lifting platform, programmable logic controller, wind-power

Xuejin Yang; Dingfang Chen; Mingwang Dong; Taotao Li

2012-11-01T23:59:59.000Z

383

Coordinated studies in support of hydraulic fracturing of coalbed methane. Final report, July 1990-May 1995  

Science Conference Proceedings (OSTI)

The primary objective of this project is to provide laboratory data that is pertinent to designing hydraulic fracturing treatments for coalbed methane. Coal fluid interactions studies, fracture conductivity, fluid leak-off through cleats, rheology, and proppant transport are designed to respresent Black Warrior and San Juan treatments. A second objective is to apply the information learned in laboratory testing to actual hydraulic fracturing treatments in order to improve results. A final objective is to review methods currently used to catalog well performance following hydraulic fracturing for the purpose of placing the data in a useable database that can be accessed by users to determine the success of various treatment scenarios.

Penny, G.S.; Conway, M.W.

1996-02-01T23:59:59.000Z

384

Systematic Variability of Soil Hydraulic Conductivity Across Three Vertisol Catenas  

E-Print Network (OSTI)

Soil hydraulic properties, such as saturated hydraulic conductivity (Ks), have high spatial variation, but little is known about how to vary a few measurements of Ks over an area to model hydrology in a watershed with complex topography and multiple land uses. Variations in soil structure, macropores (especially in soil that shrink and swell), land use, and soil development can cause large variations in Ks within one soil type. Characterizing the impacts of soil properties that might vary systematically with land use and terrain attributes on Ks rates would provide insight on how management and human activity affect local and regional hydrology. The overall objective of this research was to develop a strategy for using published infiltration and Ks measurements by the Natural Resources Conservation Service for watershed hydrology applications in a Vertisol, and to extend this knowledge toward developing recommendations for future infiltration measurements. To achieve this goal, soil infiltration measurements were collected across three catenas of Houston Black and Heiden clays (fine, smectitic, thermic Udic Haplusterts) under three land uses (improved pasture, native prairie, and conventional tillage row crop). Measurement locations were selected to account for variation in terrain attributes. Overall, Ks values were not significantly different across different landscape positions; however, in fields under similar land uses, Ks values were found to be lower in the footslope positions and higher in the backslope positions. The pedotransfer function, ROSETTA, provided estimates of 64 percent of the overall variability in Ks while also providing accurate estimates of the mean of Ks when particle size distribution and bulk density are used as inputs in the model. Through the use of multiple regression analysis, soil antecedent water content, bulk density, clay content, and soil organic carbon along with two indicator variables for the catenas were highly correlated (r2 = 0.59) with Ks. The indicator variables explained 17 percent of the variation in Ks that could not be explained by measured soil properties. It is recommended that when NRCS measures Ks on benchmark soils, especially high clay soils, that they collect particle size distribution, bulk density, organic carbon, and antecedent water content data.

Rivera, Leonardo Daniel

2010-08-01T23:59:59.000Z

385

PRATHAM: Parallel Thermal Hydraulics Simulations using Advanced Mesoscopic Methods  

SciTech Connect

At the Oak Ridge National Laboratory, efforts are under way to develop a 3D, parallel LBM code called PRATHAM (PaRAllel Thermal Hydraulic simulations using Advanced Mesoscopic Methods) to demonstrate the accuracy and scalability of LBM for turbulent flow simulations in nuclear applications. The code has been developed using FORTRAN-90, and parallelized using the message passing interface MPI library. Silo library is used to compact and write the data files, and VisIt visualization software is used to post-process the simulation data in parallel. Both the single relaxation time (SRT) and multi relaxation time (MRT) LBM schemes have been implemented in PRATHAM. To capture turbulence without prohibitively increasing the grid resolution requirements, an LES approach [5] is adopted allowing large scale eddies to be numerically resolved while modeling the smaller (subgrid) eddies. In this work, a Smagorinsky model has been used, which modifies the fluid viscosity by an additional eddy viscosity depending on the magnitude of the rate-of-strain tensor. In LBM, this is achieved by locally varying the relaxation time of the fluid.

Joshi, Abhijit S [ORNL; Jain, Prashant K [ORNL; Mudrich, Jaime A [ORNL; Popov, Emilian L [ORNL

2012-01-01T23:59:59.000Z

386

Hydraulic fracturing with a refractory proppant for sand control  

SciTech Connect

A sand control and heat transfer method is described for use in a borehole having an unconsolidated or loosely consolidated oil or gas reservoir which is otherwise likely to introduce substantial amounts of sand into the borehole, comprising: (a) providing a borehole casing through the reservoir; (b) perforating the casing at preselected intervals therealong to form at least one of longitudinal, in-line perforations; (c) hydraulically fracturing the reservoir by injecting a fracturing fluid containing a fine grain fused refractory material which comprises substantially silicon carbide or silicon nitride, and a clay stabilizing agent; (d) injecting a proppant comprising a gravel packing fused refractory material comprised substantially of silicon carbide or silicon nitride into the fracture, whereby a first layer of fine grain fused refractory material is held in place along the entire face of the fracture by a second layer of gravel packing fused refractory material also extending along the entire length of the fracture thereby excluding fines; and (e) producing oil or gas from the reservoir through the fracture into the borehole casing via a thermal oil recovery method which proppant and layers provide for increased heat transfer into the formation.

Jennings, A.R. Jr.; Stowe, L.R.

1989-04-04T23:59:59.000Z

387

Hydraulic fracturing with a refractory proppant combined with salinity control  

SciTech Connect

This patent describes a method for controlling fines or sand in an unconsolidated or loosely consolidated formation, or reservoir which method additionally improves heat transfer. It comprises: placing at least one wellbore in the formation; hydraulically fracturing the formation via the wellbore via a fracturing fluid which creates at least one fracture; placing a fused refractory proppant consisting essentially of silicon carbide or silicon nitride into the fracture which proppant gravel packs the fracture while providing for increased heat transfer into the formation; determining the critical salinity rate and the critical fluid flow velocity of the formation or reservoir surrounding the wellbore; injecting a saline solution into the formation or reservoir at a velocity exceeding the critical fluid flow velocity and at a saline concentration sufficient to cause the fines or clay particles to be transferred and fixed deep within the formation or reservoir without plugging the formation, fracture or wellbore; and producing via a thermal oil recovery method a hydrocarbonaceous fluid from the formation or reservoir at a velocity such that the critical flow velocity is not exceeded deep within the formation, fracture or wellbore.

Jennings, A.R. Jr.; Stowe, L.R.

1989-08-01T23:59:59.000Z

388

Hydraulic pump with in-ground filtration and monitoring capability  

DOE Patents (OSTI)

A hydraulically operated pump is described for in-ground filtering and monitoring of wells or other fluid sources, including a hollow cylindrical pump housing with an inlet and an outlet, filtering devices positioned in the inlet and the outlet, a piston that fits slidably within the pump housing, and an optical cell in fluid communication with the pump housing. A conduit within the piston allows fluid communication between the exterior and one end of the piston. A pair of O-rings form a seal between the inside of the pump housing and the exterior of the piston. A flow valve positioned within the piston inside the conduit allows fluid to flow in a single direction. In operation, fluid enters the pump housing through the inlet, flows through the conduit and towards an end of the pump housing. The piston then makes a downward stroke closing the valve, thus forcing the fluid out from the pump housing into the optical cell, which then takes spectrophotometric measurements of the fluid. A spring helps return the piston back to its starting position, so that a new supply of fluid may enter the pump housing and the downward stroke can begin again. The pump may be used independently of the optical cell, as a sample pump to transport a sample fluid from a source to a container for later analysis.

Hopkins, C.D.; Livingston, R.R.; Toole, W.R. Jr.

1995-01-01T23:59:59.000Z

389

Development of an Advanced Hydraulic Fracture Mapping System  

Science Conference Proceedings (OSTI)

The project to develop an advanced hydraulic fracture mapping system consisted of both hardware and analysis components in an effort to build, field, and analyze combined data from tiltmeter and microseismic arrays. The hardware sections of the project included: (1) the building of new tiltmeter housings with feedthroughs for use in conjunction with a microseismic array, (2) the development of a means to use separate telemetry systems for the tilt and microseismic arrays, and (3) the selection and fabrication of an accelerometer sensor system to improve signal-to-noise ratios. The analysis sections of the project included a joint inversion for analysis and interpretation of combined tiltmeter and microseismic data and improved methods for extracting slippage planes and other reservoir information from the microseisms. In addition, testing was performed at various steps in the process to assess the data quality and problems/issues that arose during various parts of the project. A prototype array was successfully tested and a full array is now being fabricated for industrial use.

Norm Warpinski; Steve Wolhart; Larry Griffin; Eric Davis

2007-01-31T23:59:59.000Z

390

Engineered Barrier Systems Thermal-Hydraulic-Chemical Column Test Report  

SciTech Connect

The Engineered Barrier System (EBS) Thermal-Hydraulic-Chemical (THC) Column Tests provide data needed for model validation. The EBS Degradation, Flow, and Transport Process Modeling Report (PMR) will be based on supporting models for in-drift THC coupled processes, and the in-drift physical and chemical environment. These models describe the complex chemical interaction of EBS materials, including granular materials, with the thermal and hydrologic conditions that will be present in the repository emplacement drifts. Of particular interest are the coupled processes that result in mineral and salt dissolution/precipitation in the EBS environment. Test data are needed for thermal, hydrologic, and geochemical model validation and to support selection of introduced materials (CRWMS M&O 1999c). These column tests evaluated granular crushed tuff as potential invert ballast or backfill material, under accelerated thermal and hydrologic environments. The objectives of the THC column testing are to: (1) Characterize THC coupled processes that could affect performance of EBS components, particularly the magnitude of permeability reduction (increases or decreases), the nature of minerals produced, and chemical fractionation (i.e., concentrative separation of salts and minerals due to boiling-point elevation). (2) Generate data for validating THC predictive models that will support the EBS Degradation, Flow, and Transport PMR, Rev. 01.

W.E. Lowry

2001-12-13T23:59:59.000Z

391

>Carbon Dioxide Emission Estimates from Fossil-Fuel Burning, Hydraulic  

NLE Websites -- All DOE Office Websites (Extended Search)

Carbon Dioxide Emission Estimates from Fossil-Fuel Burning, Hydraulic Carbon Dioxide Emission Estimates from Fossil-Fuel Burning, Hydraulic Cement Production, and Gas Flaring for 1995 on a One Degree Grid Cell Basis (NDP-058a) Prepared by Antoinette L. Brenkert Carbon Dioxide Information Analysis Center Oak Ridge National Laboratory Oak Ridge, Tennessee 37831-6290 Date Published: February 1998 (Revised for the Web: 2003) CONTENTS Abstract Documentation file for Data Base NDP-058a (2-1998) Data Base NDP-058a (2-1998) Abstract Carbon Dioxide Emission Estimates from Fossil-Fuel Burning, Hydraulic Cement Production, and Gas Flaring for 1995 on a One Degree Grid Cell Basis. (March 1998) Antoinette L. Brenkert DOI: 10.3334/CDIAC/ffe.ndp058.2003 This data package presents the gridded (one degree latitude by one degree longitude) summed emissions from fossil-fuel burning, hydraulic cement

392

Thermal-hydraulic analysis of cross-shaped spiral fuel in high power density BWRs  

E-Print Network (OSTI)

Preliminary analysis of the cross-shaped spiral (CSS) fuel assembly suggests great thermal-hydraulic upside. According to computational models, the increase in rod surface area, combined with an increase in coolant turbulence ...

Conboy, Thomas M

2007-01-01T23:59:59.000Z

393

Engine including hydraulically actuated valvetrain and method of valve overlap control  

DOE Patents (OSTI)

An exhaust valve control method may include displacing an exhaust valve in communication with the combustion chamber of an engine to an open position using a hydraulic exhaust valve actuation system and returning the exhaust valve to a closed position using the hydraulic exhaust valve actuation assembly. During closing, the exhaust valve may be displaced for a first duration from the open position to an intermediate closing position at a first velocity by operating the hydraulic exhaust valve actuation assembly in a first mode. The exhaust valve may be displaced for a second duration greater than the first duration from the intermediate closing position to a fully closed position at a second velocity at least eighty percent less than the first velocity by operating the hydraulic exhaust valve actuation assembly in a second mode.

Cowgill, Joel (White Lake, MI)

2012-05-08T23:59:59.000Z

394

Downstream hydraulic transients in combined free-surface, pressurized flow pipelines.  

E-Print Network (OSTI)

?? The purpose of this research was to evaluate hydraulic transients in a combined free-surface, pressurized flow system with free-surface supercritical flow. This research focused (more)

Faber, Nathan

2009-01-01T23:59:59.000Z

395

NEUTRONIC AND THERMAL HYDRAULIC DESIGNS OF ANNULAR FUEL FOR HIGH POWER DENSITY BWRS  

E-Print Network (OSTI)

As a promising new fuel for high power density light water reactors, the feasibility of using annular fuel for BWR services is explored from both thermal hydraulic and neutronic points of view. Keeping the bundle size ...

Morra, P.

396

Control method and system for hydraulic machines employing a dynamic joint motion model  

DOE Patents (OSTI)

A control method and system for controlling a hydraulically actuated mechanical arm to perform a task, the mechanical arm optionally being a hydraulically actuated excavator arm. The method can include determining a dynamic model of the motion of the hydraulic arm for each hydraulic arm link by relating the input signal vector for each respective link to the output signal vector for the same link. Also the method can include determining an error signal for each link as the weighted sum of the differences between a measured position and a reference position and between the time derivatives of the measured position and the time derivatives of the reference position for each respective link. The weights used in the determination of the error signal can be determined from the constant coefficients of the dynamic model. The error signal can be applied in a closed negative feedback control loop to diminish or eliminate the error signal for each respective link.

Danko, George (Reno, NV)

2011-11-22T23:59:59.000Z

397

Electro-Hydraulic Servo-Valve and Motion and Control Loading of Full Flight Simulator.  

E-Print Network (OSTI)

??The present thesis is on the subject of electro-hydraulic servo-valve (EHV), and motion and control loading of a flight simulator with EHV. The fundamentals of (more)

Shi, Wei

2010-01-01T23:59:59.000Z

398

Efficient Hydraulic State Estimation Technique Using Reduced Models of Urban Water Networks  

E-Print Network (OSTI)

This paper describes and demonstrates an efficient method for online hydraulic state estimation in urban water networks. The proposed method employs an online predictor-corrector (PC) procedure for forecasting future water ...

Preis, Ami

399

The Time-Dependent Hydraulic Flow and Dissipation over the Still of Observatory Inlet  

Science Conference Proceedings (OSTI)

The time-dependent hydraulic flow over the sill of a tidally energetic fjord, Observatory Inlet, British Columbia, is studied. Acoustic observations of streamlines and velocity were made near the sill crest during the summer of 1982, a time when ...

Michael W. Stacey; Len J. Zedel

1986-06-01T23:59:59.000Z

400

Nonlinear Control Synthesis for a Self-energizing Electro-Hydraulic Brake  

E-Print Network (OSTI)

Nonlinear control algorithm for a self-energizing electro-hydraulic brake is analytically designed. The desired closed-loop system behavior is reached via a synthesized nonlinear controller.

Starykh, Alexey

2010-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "bucknell hydraulic flume" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


401

The Descending Stratified Flow and Internal Hydraulic Jump in the Lee of the Sierras  

Science Conference Proceedings (OSTI)

Cross-barrier density differences and westerly flow established a descending stratified flow across the Sierra Nevada (United States) on 910 April 2006. Downslope flow and an internal hydraulic jump occurred only when the potential temperature of ...

Laurence Armi; Georg J. Mayr

2011-10-01T23:59:59.000Z

402

Risk assessment of groundwater contamination from hydraulic fracturing fluid spills in Pennsylvania  

E-Print Network (OSTI)

Fast-paced growth in natural gas production in the Marcellus Shale has fueled intense debate over the risk of groundwater contamination from hydraulic fracturing and the shale gas extraction process at large. While several ...

Fletcher, Sarah Marie

2012-01-01T23:59:59.000Z

403

1. 1. In this class, the two of us will teach you about hydraulics.  

E-Print Network (OSTI)

; and design dams, weirs, hydraulic power plants, and so on. 10. 10. In coastal engineering, we can calculate pressure, wave force, wave height, and wave velocity. 11. 11. From such calculations, we can determine

Takahashi, Ryo

404

Imaging Hydraulic Fractures: Source Location Uncertainty Analysis At The UPRC Carthage Test Site  

E-Print Network (OSTI)

Hydraulic fracturing is a useful tool for enhancing gas and oil production. High-resolution seismic imaging of the fracture geometry and fracture growth process is the key in determining optimal spacing and location of ...

Li, Yingping

1996-01-01T23:59:59.000Z

405

Design and analysis of hydraulically driven actuation system For a parabolic solar trough.  

E-Print Network (OSTI)

??Cataloged from PDF version of thesis.Includes bibliographical references (page 34).This thesis documents Katarina Popovic's contribution to the design of hydraulic cylinder actuation system for day (more)

Popovi?, Katarina, S.B. Massachusetts Institute of Technology

2013-01-01T23:59:59.000Z

406

Design and analysis of hydraulically driven actuation system For a parabolic solar trough  

E-Print Network (OSTI)

This thesis documents Katarina Popovic's contribution to the design of hydraulic cylinder actuation system for day to day solar trough sun tracking, a semester long project within 2.752 Development of Mechanical Products ...

Popovi?, Katarina, S.B. Massachusetts Institute of Technology

2013-01-01T23:59:59.000Z

407

Hydraulic Interpretation of Direct Velocity Measurements in the Bab al Mandab  

Science Conference Proceedings (OSTI)

Acoustic Doppler Current Profiler velocity measurements in the Bab al Mandab during the period June 1995March 1996 are used to assess the hydraulic character of the exchange flow. The strait is 150 km long and contains two distinct geometrical ...

L. J. Pratt; William Johns; Stephen P. Murray; Katsurou Katsumata

1999-11-01T23:59:59.000Z

408

Simulating the effects of structural parameters on the hydraulic performances of venturi tube  

Science Conference Proceedings (OSTI)

The effects of Venturi structural parameters on its hydraulic performance were studied, which provided theoretical basis for the design of Venturi injector. With an inlet diameter of 50 mm, based on the method of computational fluid dynamics (CFD), the ...

Yanqi Sun; Wenquan Niu

2012-01-01T23:59:59.000Z

409

Hydraulic Criticality of the Exchange Flow through the Strait of Gibraltar  

Science Conference Proceedings (OSTI)

The hydraulic state of the exchange circulation through the Strait of Gibraltar is defined using a recently developed critical condition that accounts for cross-channel variations in layer thickness and velocity, applied to the output of a high-...

Gianmaria Sannino; Lawrence Pratt; Adriana Carillo

2009-11-01T23:59:59.000Z

410

New Experimental Studies of Thermal-Hydraulics of Rod Bundles (NESTOR): Final Synthesis  

Science Conference Proceedings (OSTI)

The New Experimental Studies of Thermal-Hydraulics of Rod Bundles (NESTOR) project was a multi-year collaborative endeavor of the Electric Power Research Institute (EPRI), Electricit de France (EDF), and Commissariat lEnergie Atomique et aux Energies Alternatives (CEA). The project aimed at elucidating Thermal-Hydraulics (T/H) unknowns pertaining to Crud Induced Power Shift (CIPS) - formerly called axial offset anomaly (AOA) - in Pressurized Water Reactor (PWR) ...

2013-06-28T23:59:59.000Z

411

Analytical modeling of core hydraulics and flow management in breeder reactors  

SciTech Connect

An analytical model representing the hydraulic behavior of the primary system of fast breeder nuclear reactors is discussed. A computer code capable of detailing the core flow distribution and characterizing the flow and pressure drop in each reactor component is presented. Application of this method to the reactor core thermal-hydraulic design has allowed optimization of the flow management with consequent upgrading in performance, reduction of unnecessary conservatism and very substantial cost savings. Typical quantitative examples are presented.

Carelli, M.D.; Willis, J.M.

1979-01-01T23:59:59.000Z

412

Computer simulation of effective viscosity of fluid-proppant mixture used in hydraulic fracturing  

E-Print Network (OSTI)

The paper presents results of numerical experiments performed to evaluate the effective viscosity of a fluid-proppant mixture, used in hydraulic fracturing. The results, obtained by two complimenting methods (the particle dynamics and the smoothed particle hydrodynamics), coincide to the accuracy of standard deviation. They provide an analytical equation for the dependence of effective viscosity on the proppant concentration, needed for numerical simulation of the hydraulic fracture propagation.

Kuzkin, Vitaly A; Linkov, Aleksandr M

2013-01-01T23:59:59.000Z

413

Characterisation of hydraulic fractures in limestones using X-ray microtomography  

E-Print Network (OSTI)

Hydraulic tension fractures were produced in porous limestones using a specially designed hydraulic cell. The 3D geometry of the samples was imaged using X-ray computed microtomography before and after fracturation. Using these data, it was possible to estimate the permeability tensor of the core samples, extract the path of the rupture and compare it to the heterogeneities initially present in the rock.

Renard, Francois; Desrues, Jacques; Plougonven, Erwan; Ougier-Simonin, Audrey

2006-01-01T23:59:59.000Z

414

The Effect of Pressure Difference Control on Hydraulic Stability in a Variable Flow Air Conditioning System  

E-Print Network (OSTI)

This paper analyzes the effects of different pressure difference control methods on hydraulic stability in a variable flow air conditioning system when it is applied to different air conditioning water systems. According to control method and water system, it can be divided into direct return system pass-by control, direct return system terminal control, reversed return system pass-by control and reversed return system terminal control. The results indicate that reversed return system terminal control has the best hydraulic stability.

Zhang, Z.; Fu, Y.; Chen, Y.

2006-01-01T23:59:59.000Z

415

Economic Recovery of Oil Trapped at Fan Margins Using High Angle Wells and Multiple Hydraulic Fractures  

Science Conference Proceedings (OSTI)

This project attempts to demonstrate the effectiveness of exploiting thin-layered, low-energy deposits at the distal margin of a propagating turbidite complex through the use of hydraulically-fractured horizontal or high-angle wells. The combination of a horizontal or high-angled well and hydraulic fracturing will allow greater pay exposure than can be achieved with conventional vertical wells while maintaining vertical communication between thininterbedded layers and the well bore.

Mike L. Laue

1997-05-08T23:59:59.000Z

416

Economic Recovery of Oil Trapped at Fan Margins Using High Angle Wells and Multiple Hydraulic Fractures  

Science Conference Proceedings (OSTI)

This project attempts to demonstrate the effectivensss of exploiting thin-layered, low energy deposits at the distal margin of a propagating turbinite complex through u se of hydraulically fractgured horizontal of high-angle wells. TGhe combinaton of a horizontal or high-angle weoo and hydraulic fracturing will allow greater pay exposure than can be achieved with conventional vertical wells while maintaining vertical communication between thin interbedded layers and the wellbore.

Mike L. Laue

1998-02-05T23:59:59.000Z

417

Economic Recovery of Oil Trapped at Fan Margins Using High Angle Wells and Multiple Hydraulic Fractures  

Science Conference Proceedings (OSTI)

This project attempts to demonstrate the effectiveness of exploiting thin-layered, low energy deposits at the distal end of a protruding turbidite complex through use of hydraulically fractured horizontal of high-angle wells. The combination of a horizontal or high-angle well and hydraulic fracturing will allow greater pay exposure than conventional vertical wells while maintaining vertical communication between thin interbedded layers and the well bore.

Mike L. Laue

1998-05-29T23:59:59.000Z

418

Economic Recovery of Oil Trapped at Fan Margins Using High Angle Wells and Multiple Hydraulic Fractures  

Science Conference Proceedings (OSTI)

This project attempts to demonstrate the effectiveness of exploiting thin-layered, low-energy deposits at the distal margin of a prograding turbidite complex through the use of hydraulically fractured horizontal or high-angle wells. The combination of a horizontal or high-angle well and hydraulic fracturing will allow greater pay exposure than can be achieved with conventional vertical wells while maintaining vertical communication between thin interbedded layers and the wellbore.

Laue, M.L.

1999-11-01T23:59:59.000Z

419

FILTRATION OF A BACTERIAL FERMENTATION BROTH: HARVEST CONDITIONS EFFECTS ON CAKE HYDRAULIC RESISTANCE  

E-Print Network (OSTI)

The hydraulic resistance of cakes formed during the ultrafiltration of Streptomyces pristinaespiralis broths has been investigated for different harvesting conditions. Streptomyces pristinaespiralis broth was harvested after the point of microorganism activity declines (0-h aged broth) and held for different durations after that, up to 16 hours (16 aged broths). Aging behavior occurring between the end of microorganism activity and harvest was compared for different acidification procedures (pH) and the mechanisms by which cake hydraulic resistance is affected. For broths harvested under conditions where the acidification is fixed at pH 2 or 3, hydraulic resistance associated with cake build up is directly determined by the cells interactions. Holding broths beyond 5 hours contributes to a release of a soluble component from the cell surface. Enhanced cell surface interactions then turn the cake structure into a more open one and reduce the specific hydraulic resistance. For broths harvested under conditions where the acidification is fixed at pH 4, hydraulic resistance associated with cake build up is both determined by cell interactions and cell morphology. The cause of the increase in specific hydraulic resistance with aging is due to the binding of a soluble component released by the micro-organisms which decreases the cell surface interactions.

M. Meireles; E. Lavoute; P. Bacchin

2008-01-01T23:59:59.000Z

420

An automated tool for three types of saturated hydraulic conductivity laboratory measurements  

SciTech Connect

Acquisition of porous medium hydraulic conductivity in the laboratory is usually time-consuming and costly because of the manual labor associated with the currently available techniques. Lately, there has been increased interest in automating hydraulic conductivity laboratory techniques to reduce analysis time and improve data consistency. A new apparatus is presented that is able to determine hydraulic conductivity values with the falling head, constant head, and constant flux methods in an automated fashion. In addition, the columns are designed forcing water to flow in a nominally one-dimensional manner throughout the porous medium. In this paper, hydraulic conductivity data for standard laboratory sands are presented and compared to results obtained using a standard Tempe cell configuration. Hydraulic conductivity values obtained with the new tool for the laboratory sands are consistent with literature data. For highly permeable sands, the newly obtained hydraulic conductivity values are considerable larger then values acquired using a Tempe cell configuration. The lower conductivity values for the Tempe Cell configuration are primarily the result of insufficient spreading of water in the inlet and outlet reservoirs.

Wietsma, Thomas W.; Oostrom, Martinus; Covert, Matthew A.; Queen, Theresa E.; Fayer, Michael J.

2009-03-01T23:59:59.000Z

Note: This page contains sample records for the topic "bucknell hydraulic flume" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


421

25 kWe solar thermal stirling hydraulic engine system: Final conceptual design report  

DOE Green Energy (OSTI)

This report documents the conceptual design and analysis of a solar thermal free-piston Stirling hydraulic engine system designed to deliver 25 kWe when coupled to the 11-meter Test Bed Concentrator at Sandia National Laboratories. A manufacturing cost assessment for 10,000 units per year was made by Pioneer Engineering and Manufacturing. The design meets all program objectives including a 60,000-hr design life, dynamic balancing, fully automated control, >33.3% overall system efficiency, properly conditioned power, maximum utilization of annualized insolation, and projected production costs of $300/kW. The system incorporates a simple, rugged, reliable pool boiler reflux heat pipe to transfer heat from the solar receiver to the Stirling engine. The free-piston engine produces high-pressure hydraulic flow which powers a commercial hydraulic motor that, in turn, drives a commercial rotary induction generator. The Stirling hydraulic engine uses hermetic bellows seals to separate helium working gas from hydraulic fluid which provides hydrodynamic lubrication to all moving parts. Maximum utilization of highly refined, field proven commercial components for electric power generation minimizes development cost and risk. The engine design is based on a highly refined Stirling hydraulic engine developed over 20 years as a fully implantable artificial heart power source. 4 refs., 19 figs., 3 tabs.

Not Available

1988-01-01T23:59:59.000Z

422

Thermal Hydraulics of the Very High Temperature Gas Cooled Reactor  

DOE Green Energy (OSTI)

The U.S Department of Energy (DOE) is conducting research on the Very High Temperature Reactor (VHTR) design concept for the Next Generation Nuclear Plant (NGNP) Project. The reactor design will be a graphite moderated, thermal neutron spectrum reactor that will produce electricity and hydrogen in a highly efficient manner. The NGNP reactor core will be either a prismatic graphite block type core or a pebble bed core. The NGNP will use very high-burnup, low-enriched uranium, TRISO-coated fuel, and have a projected plant design service life of 60 years. The VHTR concept is considered to be the nearest-term reactor design that has the capability to efficiently produce hydrogen. The plant size, reactor thermal power, and core configuration will ensure passive decay heat removal without fuel damage or radioactive material releases during reactor core-accidents. The objectives of the NGNP Project are to: Demonstrate a full-scale prototype VHTR that is commercially licensed by the U.S. Nuclear Regulatory Commission, and Demonstrate safe and economical nuclear-assisted production of hydrogen and electricity. The DOE laboratories, led by the INL, perform research and development (R&D) that will be critical to the success of the NGNP, primarily in the areas of: High temperature gas reactor fuels behavior High temperature materials qualification Design methods development and validation Hydrogen production technologies Energy conversion. This paper presents current R&D work that addresses fundamental thermal hydraulics issues that are relevant to a variety of possible NGNP designs.

Chang Oh; Eung Kim; Richard Schultz; Mike Patterson; Davie Petti

2009-10-01T23:59:59.000Z

423

Research on Eco-Hydraulic Principles for Fish Passage and Protection: Fish Guidance at Buchanan Hydropower Plant, 2002  

Science Conference Proceedings (OSTI)

This study investigated the responses of downstream-migrating steelhead smolts to hydraulic patterns in a hydropower plant intake canal in April and May 2002. We used existing structures and hydraulic features, as well as an experimental baffle panel (in several configurations), to test the hypothesis that migrating smolts use hydraulic features, especially turbulent flow, to guide their downstream trajectories. Knowledge of the factors that orient smolts should allow design of passage routes that avoid ...

2003-04-10T23:59:59.000Z

424

INVESTIGATION OF USAGE OF VELOCITY AND PRESSURE DATA WITHIN A WATER DISTRIBUTION LAB MODEL FOR CALIBRATING HYDRAULIC MODELS.  

E-Print Network (OSTI)

??Water distribution modeling for hydraulics and water quality is an important tool for managing system performance of water utilities. An important component of a water (more)

Ashby, Robert Craig

2013-01-01T23:59:59.000Z

425

Tree species distribution in relation to stem hydraulic traits and soil moisture in a mixed hardwood forest in central Pennsylvania.  

E-Print Network (OSTI)

??The hydraulic architecture of a tree could contribute to its ability to tolerate drier soils by increasing resistance to xylem cavitation and improving the efficiency (more)

Wubbels, Jane

2010-01-01T23:59:59.000Z

426

Estimation of field-scale soil hydraulic and dielectric parameters through joint inversion of GPR and hydrological data  

E-Print Network (OSTI)

Zone Hydraulic Properties for the Hanford Site, Report PNNL-Percolation Theory: Tests of Hanford Site Soils, Vadose Zone200 East Vadose Test Site Hanford, Washington, Electrical

2005-01-01T23:59:59.000Z

427

Two-Phase Hydraulics State Identification using linear and non-linear time series analysis: Distillation Column Flooding Sensor.  

E-Print Network (OSTI)

??A novel sensor to detect and predict hydraulic flooding in the distillation column was developed in this research. High speed (1000 Hz) differential pressure data (more)

Patel, Alok Maheshbhai

2007-01-01T23:59:59.000Z

428

Coordinated studies in support of hydraulic fracturing of coalbed methane. Annual report, January 1993-April 1994  

SciTech Connect

The production of natural gas from coal typically requires stimulation in the form of hydraulic fracturing and, more recently, cavity completions. The results of hydraulic fracturing treatments have ranged from extremely successful to less than satisfactory. The purpose of this work is to characterize common and potential fracturing fluids in terms of coal-fluid interactions to identify reasons for less than satisfactory performance and to ultimately devise alternative fluids and treatment procedures to optimize production following hydraulic fracturing. The laboratory data reported herein has proven helpful in designing improved hydraulic fracturing treatments and remedial treatments in the Black Warrior Basin. Acid inhibitors, scale inhibitors, additives to improve coal relative permeability to gas, and non-damaging polymer systems for hydraulic fracturing have been screened in coal damage tests. The optimum conditions for creating field-like foams in the laboratory have been explored. Tests have been run to identify minimum polymer and surfactant concentrations for applications of foam in coal. The roll of 100 mesh sand in controlling leakoff and impairing conductivity in coal has been investigated. The leakoff and proppant transport of fluids with breaker has been investigated and recommendations have been made for breaker application to minimize damage potential in coal. A data base called COAL`S has been created in Paradox (trademark) for Windows to catalogue coalbed methane activities in the Black Warrior and San Juan Basins.

Penny, G.S.; Conway, M.W.

1994-08-01T23:59:59.000Z

429

Hydraulic modeling of large district cooling systems for master planning purposes  

E-Print Network (OSTI)

District Cooling Systems (DCS) have been widely applied in large institutions such as universities, government facilities, commercial districts, airports, etc. The hydraulic system of a large DCS can be complicated. They often stem from an original design that has had extensive additions and deletions over time. Expanding or retrofitting such a system involves large capital investment. Consideration of future expansion is often required. Therefore, a thorough study of the whole system at the planning phase is crucial. An effective hydraulic model for the existing DCS will become a powerful analysis tool for this purpose. Engineers can use the model to explore alternative system configurations to find an optimal way of accommodating the DCS hydraulic system to the planned future unit. This thesis presents the first complete procedure for the use of commercial simulation software to construct the hydraulic model for a large District Cooling System (DCS). A model for one of the largest DCS hydraulic systems in the United States has been developed based on this procedure and has been successfully utilized to assist its master planning study.

Xu, Chen

2003-05-01T23:59:59.000Z

430

Coordinated studies in support of hydraulic fracturing of coalbed methane. Annual report, November 1991-December 1992  

Science Conference Proceedings (OSTI)

The purpose of the work is to characterize common and potential fracturing fluids in terms of coal-fluid interactions to identify reasons for less than satisfactory performance and to ultimately devise alternative fluids and treatment procedures to optimize production following hydraulic fracturing. The laboratory data reported herein has proven helpful in designing improved hydraulic fracturing treatments and remedial treatments in the Black Warrior Basin. Acid inhibitors, scale inhibitors, additives to improve coal relative permeability to gas, and non-damaging polymer systems for hydraulic fracturing have been screened in coal damage tests. The optimum conditions for creating field-like foams in the laboratory have been explored. Tests have been run to identify minimum polymer and surfactant concentrations for applications of foam in coal. The roll of 100 mesh sand in controlling leakoff and impairing conductivity in coal has been investigated.

Not Available

1993-04-01T23:59:59.000Z

431

Thermal hydraulic considerations in liquid-metal-cooled components of tokamak fusion reactors  

Science Conference Proceedings (OSTI)

The basic considerations of MHD thermal hydraulics for liquid-metal-cooled blankets and first walls of tokamak fusion reactors are discussed. The liquid-metal MHD program of Argonne National Laboratory (ANL) dedicated to analytical and experimental investigations of reactor relevant MHD flows and development of relevant thermal hydraulic design tools is presented. The status of the experimental program and examples of local velocity measurements are given. An account of the MHD codes developed to date at ANL is also presented as is an example of a 3-D thermal hydraulic analysis carried out with such codes. Finally, near term plans for experimental investigations and code development are outlined. 20 refs., 8 figs., 1 tab.

Picologlou, B.F.; Reed, C.B.; Hua, T.Q. (Argonne National Lab., IL (USA))

1989-01-01T23:59:59.000Z

432

Sizing of a hot dry rock reservoir from a hydraulic fracturing experiment  

DOE Green Energy (OSTI)

Hot dry rock (HDR) reservoirs do not lend themselves to the standard methods of reservoir sizing developed in the petroleum industry such as the buildup/drawdown test. In a HDR reservoir the reservoir is created by the injection of fluid. This process of hydraulic fracturing of the reservoir rock usually involves injection of a large volume (5 million gallons) at high rates (40BPM). A methodology is presented for sizing the HDR reservoir created during the hydraulic fracturing process. The reservoir created during a recent fracturing experiment is sized using the techniques presented. This reservoir is then investigated for commercial potential by simulation of long term power production. 5 refs., 7 figs.

Zyvoloski, G.

1985-01-01T23:59:59.000Z

433

High speed hydraulically-actuated operating system for an electric circuit breaker  

DOE Patents (OSTI)

This hydraulically-actuated operating system comprises a cylinder, a piston movable therein in an opening direction to open a circuit breaker, and an accumulator for supplying pressurized liquid to a breaker-opening piston-actuating space within the cylinder. A normally-closed valve between the accumulator and the actuating space is openable to allow pressurized liquid from the accumulator to flow through the valve into the actuating space to drive the piston in an opening direction. A dashpotting mechanism operating separately from the hydraulic actuating system is provided, thereby reducing flow restriction interference with breaker opening. 3 figs.

Iman, I.

1983-06-07T23:59:59.000Z

434

High speed hydraulically-actuated operating system for an electric circuit breaker  

Science Conference Proceedings (OSTI)

This hydraulically-actuated operating system comprises a cylinder, a piston movable therein in an opening direction to open a circuit breaker, and an accumulator for supplying pressurized liquid to a breaker-opening piston-actuating space within the cylinder. A normally-closed valve between the accumulator and the actuating space is openable to allow pressurized liquid from the accumulator to flow through the valve into the actuating space to drive the piston in an opening direction. A dashpotting mechanism operating separately from the hydraulic actuating system is provided, thereby reducing flow restriction interference with breaker opening.

Iman, Imdad (Colonie, NY)

1983-06-07T23:59:59.000Z

435

Hydraulic up-down well jar and method of operating same  

SciTech Connect

This patent describes a hydraulic jar connected in a string of components for use in a wellbore. It comprises an inner mandrel assembly; an outer housing assembly; means respectively connecting a fluid chamber; means for forming a restricted flow passage; one of the assemblies being movable; means responsive to the one assembly moving relative to the other assembly; means for providing a high impact load. This patent also describes a method for operating a hydraulic jar connected in a string of components in a wellbore.

Pleasants, C.W.; Scott, K.W.

1991-04-16T23:59:59.000Z

436

Evaluation of rock/fracture interactions during steam injection through vertical hydraulic fractures  

SciTech Connect

The design, results, and analysis of a steamdrive pilot in the South Belridge diatomite, Kern County, California, are reviewed. Pilot results demonstrate that steam can be injected across a 1,000-ft-tall diatomite column using hydraulically fractured wells and that significant oil is produced in response to steaming. A computationally simple numerical model is proposed and used to analyze reservoir heating and volumetric sweep by steam. Results from the analysis show that hydraulic fractures undergoing steam injection can be dynamic and asymmetrical.

Kovscek, A.R. [Stanford Univ., CA (United States); Johnston, R.M. [CalResources LLC, Bakersfield, CA (United States); Patzek, T.W. [Univ. of California, Berkeley, CA (United States)

1997-05-01T23:59:59.000Z

437

SUPERENERGY-2: a multiassembly, steady-state computer code for LMFBR core thermal-hydraulic analysis  

SciTech Connect

Core thermal-hydraulic design and performance analyses for Liquid Metal Fast Breeder Reactors (LMFBRs) require repeated detailed multiassembly calculations to determine radial temperature profiles and subchannel outlet temperatures for various core configurations and subassembly structural analyses. At steady-state, detailed core-wide temperature profiles are required for core restraint calculations and subassembly structural analysis. In addition, sodium outlet temperatures are routinely needed for each reactor operating cycle. The SUPERENERGY-2 thermal-hydraulic code was designed specifically to meet these designer needs. It is applicable only to steady-state, forced-convection flow in LMFBR core geometries.

Basehore, K.L.; Todreas, N.E.

1980-08-01T23:59:59.000Z

438

Light-water-reactor coupled neutronic and thermal-hydraulic codes  

Science Conference Proceedings (OSTI)

An overview is presented of computer codes that model light water reactor cores with coupled neutronics and thermal-hydraulics. This includes codes for transient analysis and codes for steady state analysis which include fuel depletion and fission product buildup. Applications in nuclear design, reactor operations and safety analysis are given and the major codes in use in the USA are identified. The neutronic and thermal-hydraulic methodologies and other code features are outlined for three steady state codes (PDQ7, NODE-P/B and SIMULATE) and four dynamic codes (BNL-TWIGL, MEKIN, RAMONA-3B, RETRAN-02). Speculation as to future trends with such codes is also presented.

Diamond, D.J.

1982-01-01T23:59:59.000Z

439

The importance of in-situ-stress profiles in hydraulic-fracturing applications  

Science Conference Proceedings (OSTI)

In-situ stresses define the local forces acting on lithologic layers in the subsurface. Knowledge of these stresses is important in drilling, wellbore-stability, and, especially, hydraulic-fracturing applications. The measurement of in-situ stress is not straightforward and, therefore, often goes unmeasured. As such, one often assumes values of in-situ stress or estimate in-situ stresses from logging parameters. This article illustrates the importance of in-situ-stress estimates as they relate to hydraulic fracturing and outlines several techniques for estimating in-situ-stress magnitudes.

Hopkins, C.W. [S.A. Holditch and Associates, Inc., Houston, TX (United States). Houston Div.

1997-09-01T23:59:59.000Z

440

Discussion of comparison study of hydraulic fracturing models -- Test case: GRI Staged Field Experiment No. 3  

Science Conference Proceedings (OSTI)

This paper provides comments to a companion journal paper on predictive modeling of hydraulic fracturing patterns (N.R. Warpinski et. al., 1994). The former paper was designed to compare various modeling methods to demonstrate the most accurate methods under various geologic constraints. The comments of this paper are centered around potential deficiencies in the former authors paper which include: limited actual comparisons offered between models, the issues of matching predictive data with that from related field operations was lacking or undocumented, and the relevance/impact of accurate modeling on the overall hydraulic fracturing cost and production.

Cleary, M.P.

1994-02-01T23:59:59.000Z

Note: This page contains sample records for the topic "bucknell hydraulic flume" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


441

Real-time and post-frac' 3-D analysis of hydraulic fracture treatments in geothermal reservoirs  

SciTech Connect

Economic power production from Hot Dry Rock (HDR) requires the establishment of an efficient circulation system between wellbores in reservoir rock with extremely low matrix permeability. Hydraulic fracturing is employed to establish the necessary circulation system. Hydraulic fracturing has also been performed to increase production from hydrothermal reservoirs by enhancing the communication with the reservoir's natural fracture system. Optimal implementation of these hydraulic fracturing applications, as with any engineering application, requires the use of credible physical models and the reconciliation of the physical models with treatment data gathered in the field. Analysis of the collected data has shown that 2-D models and 'conventional' 3-D models of the hydraulic fracturing process apply very poorly to hydraulic fracturing in geothermal reservoirs. Engineering decisions based on these more 'conventional' fracture modeling techniques lead to serious errors in predicting the performance of hydraulic fracture treatments. These errors can lead to inappropriate fracture treatment design as well as grave errors in well placement for hydrothermal reservoirs or HDR reservoirs. This paper outlines the reasons why conventional modeling approaches fall short, and what types of physical models are needed to credibly estimate created hydraulic fracture geometry. The methodology of analyzing actual measured fracture treatment data and matching the observed net fracturing pressure (in realtime as well as after the treatment) is demonstrated at two separate field sites. Results from an extensive Acoustic Emission (AE) fracture diagnostic survey are also presented for the first case study aS an independent measure of the actual created hydraulic fracture geometry.

Wright, C.A.; Tanigawa, J.J.; Hyodo, Masami; Takasugi, Shinji

1994-01-20T23:59:59.000Z

442

Optimal two-degree-of-freedom fuzzy control for locomotion control of a hydraulically actuated hexapod robot  

Science Conference Proceedings (OSTI)

Locomotion control of legged robots is a very challenging task because very accurate foot trajectory tracking control is necessary for stable walking. An electro-hydraulically actuated walking robot has sufficient power to walk on rough terrain and carry ... Keywords: Hydraulic actuator, One-step-ahead fuzzy control, Robot locomotion, Six-legged walking robot, Two-degree-of-freedom fuzzy control

Ranjit Kumar Barai; Kenzo Nonami

2007-04-01T23:59:59.000Z

443

CAT II--AN IBM 7090 CODE FOR PREDICTING THERMAL AND HYDRAULIC TRANSIENTS IN AN OPEN-LATTICE CORE  

SciTech Connect

CAT II is a digital computer code designed specifically to predict the thermal and hydraulic performance of rod type, open-channel reactor cores. The code is primarily intended for calculating thermal and hydraulic transients associated with a loss of coolant flow accident, although it has also been used extensively for steady state calculations. (auth)

Sandberg, R.O.

1962-08-01T23:59:59.000Z

444

BGNN Neural Network Based on Improved E.Coli Foraging Optimization Algorithm Used in the Nonlinear Modeling of Hydraulic Turbine  

Science Conference Proceedings (OSTI)

A novel Bayesian-Gaussian neural network (BGNN) is proposed in this paper for the nonlinear modeling of hydraulic turbine which is difficult to obtain its mathematical model because of its complex and nonlinear characteristics. The topology and connection ... Keywords: BGNN, Hydraulic turbine, Improved E.Coli foraging optimization algorithm, Nonlinear modeling

Yijian Liu; Yanjun Fang

2009-05-01T23:59:59.000Z

445

An extended finite element method for hydraulic fracture propagation in deformable porous media with the cohesive crack model  

Science Conference Proceedings (OSTI)

In this paper, a fully coupled numerical model is developed for the modeling of the hydraulic fracture propagation in porous media using the extended finite element method in conjunction with the cohesive crack model. The governing equations, which account ... Keywords: Cohesive crack propagation, Fluid flow, Fracturing porous media, Fully coupled model, Hydraulic fracturing, XFEM

T. Mohammadnejad, A. R. Khoei

2013-10-01T23:59:59.000Z

446

Laboratory evaluation of the constant rate of strain and constant head techniques for measurement of the hydraulic conductivity of fine grained soils  

E-Print Network (OSTI)

This thesis evaluates the constant rate of strain and constant head techniques for measurement of the hydraulic conductivity of fine grained soils. A laboratory program compares hydraulic conductivity measurements made ...

Adams, Amy Lynn

2011-01-01T23:59:59.000Z

447

The Effect of Proppant Size and Concentration on Hydraulic Fracture Conductivity in Shale Reservoirs  

E-Print Network (OSTI)

Hydraulic fracture conductivity in ultra-low permeability shale reservoirs is directly related to well productivity. The main goal of hydraulic fracturing in shale formations is to create a network of conductive pathways in the rock which increase the surface area of the formation that is connected to the wellbore. These highly conductive fractures significantly increase the production rates of petroleum fluids. During the process of hydraulic fracturing proppant is pumped and distributed in the fractures to keep them open after closure. Economic considerations have driven the industry to find ways to determine the optimal type, size and concentration of proppant that would enhance fracture conductivity and improve well performance. Therefore, direct laboratory conductivity measurements using real shale samples under realistic experimental conditions are needed for reliable hydraulic fracturing design optimization. A series of laboratory experiments was conducted to measure the conductivity of propped and unpropped fractures of Barnett shale using a modified API conductivity cell at room temperature for both natural fractures and induced fractures. The induced fractures were artificially created along the bedding plane to account for the effect of fracture face roughness on conductivity. The cementing material present on the surface of the natural fractures was preserved only for the initial unpropped conductivity tests. Natural proppants of difference sizes were manually placed and evenly distributed along the fracture face. The effect of proppant monolayer was also studied.

Kamenov, Anton

2013-05-01T23:59:59.000Z

448

A new method for determining fluid flow paths during hydraulic fracturing  

DOE Green Energy (OSTI)

Although hydraulic fracturing is a popular method for increasing the productivity of oil and gas wells, there is no direct way other than drilling additional boreholes to determine where the injected fluid has gone and thus what direction a fracture has propagated. Information about fluid flow paths is important for designing subsequent fracturing operations for nearby wells. Determining the locations and orientations of permeable fractures is also important in studies of potential toxic waste repositories where it is critical to understand fluid flow paths. We have developed a method for determining the orientations and locations of fractures along which fluid flows during hydraulic fracturing. The method is based on accurate determination of the locations of microseismic events, or microearthquakes, that accompany the hydraulic injection. By applying a pattern recognition technique to the locations of events from one hydraulic fracturing operation we find planes in the data along which we presume that the fluid has traveled. The planes determined using our method intersect the injection borehole and a second, nearby borehole, in regions where other data indicate that fractures are present.

Fehler, M.

1987-01-01T23:59:59.000Z

449

Pressure regulation in nonlinear hydraulic networks by positive controls Claudio De Persis and Carsten Skovmose Kallese  

E-Print Network (OSTI)

- scale hydraulic network which underlies a district heating system with an arbitrary number of end demands of the users themselves. The problem is addressed for a new generation of district heating systems, for instance, to the addition of new end-users in the district heating system) can be easily handled

De Persis, Claudio

450

Paper Number Development of a Hydro-Mechanical Hydraulic Hybrid Drive  

E-Print Network (OSTI)

of a passenger car. The developed hydro-mechanical drive train enables independent control of the torque at eachPaper Number Development of a Hydro-Mechanical Hydraulic Hybrid Drive Train with Independent Wheel for the Center for Compact and Efficient Fluid Power at the University of Minnesota. The hydro-mechanical hybrid

Li, Perry Y.

451

A new method for determining dominant fluid flow paths during hydraulic fracturing  

DOE Green Energy (OSTI)

Although hydraulic fracturing is a method that has been applied for many years to increase fracture permeability of reservoirs, there is no direct way other than drilling additional boreholes to determine where the injected fluid has gone and thus what direction fractures have propagated. Information about fluid flow paths is important for designing subsequent fracturing operations for nearby wells or for choosing a trajectory for a second well to drill through the fracture system, and thus create a hot dry rock geothermal energy reservoir. A method has been developed for determining the orientations and locations of fractures along which fluid flows during hydraulic fracturing. The method is based on accurate determination of the locations of microseismic events, or microearthquakes, that accompany the hydraulic injection. The method has been applied to data collected during a massive hydraulic fracturing experiment carried out as part of the hot dry rock project. Planes with five different orientations were found in the data. The planes determined using the method intersect the injection borehole and a second, nearby borehole, in regions where other data indicate that fractures are present.

Fehler, M.

1987-01-01T23:59:59.000Z

452

Steam Turbine Mechanical Hydraulic Control System - Operation, Inspection, Setup, Troubleshooting, and Maintenance Guide, Revision 1  

Science Conference Proceedings (OSTI)

This report describes the components of General Electric and Westinghouse steam turbine mechanical hydraulic control systems and provides typical drawings. It focuses on systems located on the front standards and valve enclosures of utility-sized fossil and nuclear steam turbines manufactured by General Electric and Westinghouse. The report is intended to assist in maintaining, calibrating, and troubleshooting these systems.

2009-06-25T23:59:59.000Z

453

The Hydraulics of Local Separation in a Coastal Current with Application to the Kuroshio Meander  

Science Conference Proceedings (OSTI)

A hydraulic theory is advanced to explain the large sustained meandering of the Kuroshio Current to the south of Japan. It is shown that in general a promontory induces separation of a coastal current. Once separated the current will meander on ...

Roger L. Hughes

1989-12-01T23:59:59.000Z

454

Hydraulic Control of Three-Layer Exchange Flows: Application to the Bab al Mandab  

Science Conference Proceedings (OSTI)

Two-layer hydraulic models have proven to be extremely useful in understanding a number of exchange flows through straits, for example, the Strait of Gibraltar. There are, though, some strait flows that cannot be represented by a two-layer model. ...

David A. Smeed

2000-10-01T23:59:59.000Z

455

A MathCAD procedure for commercial pipeline hydraulic design considering local energy losses  

Science Conference Proceedings (OSTI)

Using a power type equation for friction factor, this paper presents a design procedure which provides accurate solutions for three types of pipe design problems (Types A-C) taking into consideration the effect of local losses. The parameters introduced ... Keywords: Commercial pipes, MathCAD, Pipe hydraulics, Pipeline design, Pressurized flows, Software, Steady-state analysis, Water distribution networks

Grol Y?ld?r?m; Vijay P. Singh

2010-03-01T23:59:59.000Z

456

Copyright 2008 SAE International The attractiveness of the hydraulic hybrid concept stems  

E-Print Network (OSTI)

to a more traditional wet case design. A wet case pump contains low-pressure oil on the backside of the pistons while a dry case pump contains gas. The oil in the wet case provides ample cooling of the pistons pump [5]. The difficulty in using a dry case pump in a hydraulic hybrid vehicle stems from oil leaks

Shih, Albert J.

457

Hydraulic lock alleviation device, well cementing stage tool, and related methods  

SciTech Connect

This patent describes a hydraulic lock alleviation apparatus for disposition adjacent a first space in a wellbore in which an hydraulic lock can be created and a second space into which fluid trapped in the first space may be communicated by the hydraulic locki alleviation apparatus. The apparatus consists of: a body member, the body member having a central bore therethrough permitting fluid communication between the first and second spaces, a channel through the body member in fluid communication with both the first space and the second space so that fluid communication is allowed between the two spaces through the channel, a pressure responsive member sealingly disposed in the channel to prevent the flow of fluid through the channel from the first space into the second space, wherein upon closure of the central bore to the flow of fluid therethrough thereby trapping fluid in the first space, the trapped fluid acts on the pressure responsive member to permit flow of the trapped fluid through the channel from the first space into the second space, thereby alleviating the formation of an hydraulic lock by the trapped fluid in the first space.

Schneider, D.E.; Timmerman, T.D.

1989-06-27T23:59:59.000Z

458

Capillary bundle model of hydraulic conductivity for frozen soil Kunio Watanabe1  

E-Print Network (OSTI)

Capillary bundle model of hydraulic conductivity for frozen soil Kunio Watanabe1 and Markus Flury2] We developed a capillary bundle model to describe water flow in frozen soil. We assume that the soil for both saturated and unsaturated soils, using a sand and two silt loam soils as examples. As temperature

Flury, Markus

459

Economic Recovery of Oil Trapped at Fan Margins Using High Angle Wells Multiple Hydraulic Fractures  

SciTech Connect

This project attempts to demonstrate the effectiveness of exploiting thin-layered, low-energy deposits at the distal margin of a prograding turbidite complex through the use of hydraulically fractured horizontal or high-angle wells. The combination of a horizontal or high-angle well and hydraulic fracturing will allow greater pay exposure than can be achieved with conventional vertical wells while maintaining vertical communication between thin interbedded layers and the wellbore. A high-angle well will be drilled in the fan-margin portion of a slope-basin clastic reservoir and will be completed with multiple hydraulic-fracture treatments. Geologic modeling, reservoir characterization, and fine-grid reservoir simulation will be used to select the well location and orientation. Design parameters for the hydraulic-fracture treatments will be determined, in part, by fracturing an existing test well. Fracture azimuth will be predicted by passive seismic monitoring of a fracture-stimulation treatment in the test well using logging tools in an offset well.

Mike L. Laue

1997-10-30T23:59:59.000Z

460

Independent one-way acting hydraulic jar sections for a rotary drill string  

SciTech Connect

First and second separate one-way acting hydraulic jar sections each include inner and outer telescopically arranged tubular members with means for connecting one end of each the inner and outer tubular members of each jar section in the drill string. Spaced seal means between the inner and outer tubular members form a chamber in each jar section for confining hydraulic operating fluid. Hydraulic jar means are formed by cooperating means on the inner and outer tubular members within each operating fluid chamber. The cooperating means is spaced axially and disengaged in each fluid chamber when the drill string is in tension and compression during rotary drilling operation to inhibit damage and wear thereto. The hydraulic jar means in the first jar section is constructed to deliver an up jar and the jar means in the separate second jar section is constructed to deliver a down jar to the drill string. Drive means in a sealed chamber in each jar section connect the inner and outer tubular members of each jar section to allow relative longitudinal movement while preventing relative rotation therebetween. Means to equalize pressure adjacent one end of each of the chambers with the pressure in the well bore is provided in each jar section, which accommodates relative longitudinal movement of the inner and outer tubular members of each jar section for selectively creating an up or down jarring force independently of the well bore pressure.

Anderson, E.A.; Webb, D.D.

1980-10-07T23:59:59.000Z

Note: This page contains sample records for the topic "bucknell hydraulic flume" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


461

Laboratory-Measured and Property-Transfer Modeled Saturated Hydraulic Conductivity of Snake River Plain  

E-Print Network (OSTI)

Plain Aquifer Sediments at the Idaho National Laboratory, Idaho Scientific Investigations Report 2008 Conductivity of Snake River Plain Aquifer Sediments at the Idaho National Laboratory, Idaho By Kim S. Perkins saturated hydraulic conductivity of Snake River Plain aquifer sediments at the Idaho National Laboratory

462

Analysis of hydraulic tomography using temporal moments of drawdown recovery data  

E-Print Network (OSTI)

and Tian-Chyi J. Yeh Department of Hydrology and Water Resources, University of Arizona, Tucson, Arizona are discussed subsequently. Citation: Zhu, J., and T.-C. J. Yeh (2006), Analysis of hydraulic tomography using temporal moments of drawdown recovery data, Water Resour. Res., 42, W02403, doi:10.1029/2005WR004309. 1

Daniels, Jeffrey J.

463

Effective hydraulic parameters for steady state vertical flow in heterogeneous soils  

E-Print Network (OSTI)

to be consistent with the previous findings of mean- gradient unsaturated hydraulic conductivity [Yeh et al., 1985a correlation, boundary condition (surface pressure head), and elevation above the water table on the effective vertical flow in heterogeneous soils, Water Resour. Res., 39(8), 1227, doi:10.1029/2002WR001831, 2003. 1

Mohanty, Binayak P.

464

Life Cycle Management Sourcebooks Volume 9: Main Turbine Electro-Hydraulic Controls  

Science Conference Proceedings (OSTI)

EPRI is producing a series of Life Cycle Management Planning Sourcebooks, each compiling industry experience and data on aging degradation and historical performance for a specific type of system, structure, or component (SSC). This sourcebook provides information and guidance for implementing cost-effective life cycle management (LCM) planning for main turbine electro-hydraulic control (EHC) and overspeed protection systems.

2003-12-04T23:59:59.000Z

465

Systematic hydraulic study on pumping stations equipped with surge tank mounted next to the pump  

Science Conference Proceedings (OSTI)

An important number of pumping stations, part of the Romanian irrigation systems, were conceived with surge tank mounted on the discharge duct, next to the pump, in order to protect the installation from hydraulic shock. In practice, the dimensioning ... Keywords: air chamber, geodetic head, head loss, pumping station, surge tank

Claudiu Stefan Nitescu; Anca Constantin

2010-07-01T23:59:59.000Z

466

Active and passive seismic imaging of a hydraulic fracture in diatomite  

SciTech Connect

This paper reports on a comprehensive set of experiments including remote- and treatment-well microseismic monitoring, interwell shear-wave shadowing, and surface tiltmeter arrays, that was used to monitor the growth of a hydraulic fracture in the Belridge diatomite. To obtain accurate measurements, and extensive subsurface network of geophones was cemented spanning the diatomite formation in three closely spaced observation wells around the well to be fracture treated. Data analysis indicates that the minifracture and main hydraulic fracture stimulations resulted in a nearly vertical fracture zone (striking N26{degrees}E) vertically segregated into two separate elements, the uppermost of which grew 60 ft above the perforated interval. The interwell seismic effects are consistent with a side process zone of reduced shear velocity, which remote-well microseismic data independently suggest may be as wide as 40 ft. The experiments indicate complicated processes occurring during hydraulic fracturing that have significant implications for stimulation, waterflooding, in fill drilling, and EOR. These processes are neither well understood nor included in current hydraulic fracture models.

Vinegar, H.J.; Wills, P.B.; De Martini, D.C. (Shell Development Co. (US))

1992-01-01T23:59:59.000Z

467

Improving the Efficiency of Die Casting Machine Hydraulic Systems with the Retrofit of Adjustable Frequency Drives  

E-Print Network (OSTI)

Die casting is a common method of light metal processing which is used to produce accurately dimensioned, sharply defined metal parts. Most die casting machines in use today utilize a complex hydraulic system to perform the necessary work required for the process. The pressure and flow rate demands on the hydraulic system vary significantly throughout the cycle. Many older systems are greatly oversized so that they are able to meet the peak hydraulic demand at any point. These systems operate inefficiently because there is typically no way to limit the hydraulic capacity during periods of low demand. As a result, fluid is throttled to lower pressures and excess fluid flow is routed directly back to the system reservoir, wasting motor energy and increasing the thermal load on the cooling system. One option for improving the efficiency of older die casting machines currently in use is the retrofit of an adjustable frequency drive, or AFD. An AFD allows the speed of the pump motor to be varied, changing the pump output to suit the cycle demands. This minimizes the amount of wasted energy without affecting other process parameters. This paper will discuss the die casting process and examine the energy savings potential of retrofitting die casting machines with adjustable frequency drives.

Ambs, L.; Kosanovic, D.; Edberg, C.

1999-05-01T23:59:59.000Z

468

Proceedings of the OECD/CSNI workshop on transient thermal-hydraulic and neutronic codes requirements  

SciTech Connect

This is a report on the CSNI Workshop on Transient Thermal-Hydraulic and Neutronic Codes Requirements held at Annapolis, Maryland, USA November 5-8, 1996. This experts` meeting consisted of 140 participants from 21 countries; 65 invited papers were presented. The meeting was divided into five areas: (1) current and prospective plans of thermal hydraulic codes development; (2) current and anticipated uses of thermal-hydraulic codes; (3) advances in modeling of thermal-hydraulic phenomena and associated additional experimental needs; (4) numerical methods in multi-phase flows; and (5) programming language, code architectures and user interfaces. The workshop consensus identified the following important action items to be addressed by the international community in order to maintain and improve the calculational capability: (a) preserve current code expertise and institutional memory, (b) preserve the ability to use the existing investment in plant transient analysis codes, (c) maintain essential experimental capabilities, (d) develop advanced measurement capabilities to support future code validation work, (e) integrate existing analytical capabilities so as to improve performance and reduce operating costs, (f) exploit the proven advances in code architecture, numerics, graphical user interfaces, and modularization in order to improve code performance and scrutibility, and (g) more effectively utilize user experience in modifying and improving the codes.

Ebert, D.

1997-07-01T23:59:59.000Z

469

Investigation of Potential Concrete Tie Rail Seat Deterioration Mechanisms: Cavitation Erosion and Hydraulic Pressure Cracking  

E-Print Network (OSTI)

Investigation of Potential Concrete Tie Rail Seat Deterioration Mechanisms: Cavitation Erosion and Hydraulic Pressure Cracking 10-2411 Transportation Research Board 89th Annual Meeting Submitted: November 15-2411 1 ABSTRACT Rail seat deterioration (RSD) is the most critical problem with concrete tie performance

Barkan, Christopher P.L.

470

ECONOMIC RECOVERY OF OIL TRAPPED AT FAN MARGINS USING HIGH ANGLE WELLS AND MULTIPLE HYDRAULIC FRACTURES  

Science Conference Proceedings (OSTI)

This project attempts to demonstrate the effectiveness of exploiting thin-layered, low-energy deposits at the distal margin of a prograding turbidite complex through the use of hydraulically fractured horizontal or high-angle wells. The combination of a horizontal or high-angle well and hydraulic fracturing will allow greater pay exposure than can be achieved with conventional vertical wells while maintaining vertical communication between thin interbedded layers and the wellbore. A high-angle well will be drilled in the fan-margin portion of a slope-basin clastic reservoir and will be completed with multiple hydraulic-fracture treatments. Geologic modeling, reservoir characterization, and fine-grid reservoir simulation will be used to select the well location and orientation. Design parameters for the hydraulic-fracture treatments will be determined, in part, by fracturing an existing test well. Fracture azimuth will be predicted by passive seismic monitoring of a fracture-stimulation treatment in the test well using logging tools in an offset well.

Mike L. Laue

1998-11-06T23:59:59.000Z

471

Measurement Research of Borehole-to-Surface Electric Potential Gradient Method in Monitoring Hydraulic Fracture  

Science Conference Proceedings (OSTI)

As the main measures to improve oil and gas production, hydraulic fracturing has been widely applied in modern oil industry. By means of lower resistance properties of fracturing fluid, borehole-to-surface electric potential gradient method analyses ... Keywords: borehole-to-surface electric method, Ab normal depth, launch current, polar distance, electric potential gradient

Tingting Li; Kaiguang Zhu; Jia Wang; Chunling Qiu; Jun Lin

2012-04-01T23:59:59.000Z

472

Hydraulic testing of Salado Formation evaporites at the Waste Isolation Pilot Plant site: Second interpretive report  

Science Conference Proceedings (OSTI)

Pressure-pulse, constant-pressure flow, and pressure-buildup tests have been performed in bedded evaporites of the Salado Formation at the Waste Isolation Pilot Plant (WIPP) site to evaluate the hydraulic properties controlling brine flow through the Salado. Transmissivities have been interpreted from six sequences of tests conducted on five stratigraphic intervals within 15 m of the WIPP underground excavations.

Beauheim, R.L. [Sandia National Labs., Albuquerque, NM (United States); Roberts, R.M.; Dale, T.F.; Fort, M.D.; Stensrud, W.A. [INTERA, Inc., Austin, TX (United States)

1993-12-01T23:59:59.000Z

473

Final Report - Hydraulic Conductivity with Depth for Underground Test Area (UGTA) Wells  

SciTech Connect

Hydraulic conductivity with depth has been calculated for Underground Test Area (UGTA) wells in volcanic tuff and carbonate rock. The following wells in volcanic tuff are evaluated: ER-EC-1, ER-EC-2a, ER-EC-4, ER-EC-5, ER-5-4#2, ER-EC-6, ER-EC-7, and ER-EC-8. The following wells in carbonate rock are evaluated: ER-7-1, ER-6-1, ER-6-1#2, and ER-12-3. There are a sufficient number of wells in volcanic tuff and carbonate rock to associate the conductivity values with the specific hydrogeologic characteristics such as the stratigraphic unit, hydrostratigraphic unit, hydrogeologic unit, lithologic modifier, and alteration modifier used to describe the hydrogeologic setting. Associating hydraulic conductivity with hydrogeologic characteristics allows an evaluation of the data range and the statistical distribution of values. These results are relevant to how these units are considered in conceptual models and represented in groundwater models. The wells in volcanic tuff illustrate a wide range of data values and data distributions when associated with specific hydrogeologic characteristics. Hydraulic conductivity data within a hydrogeologic characteristic can display normal distributions, lognormal distributions, semi-uniform distribution, or no identifiable distribution. There can be multiple types of distributions within a hydrogeologic characteristic such as a single stratigraphic unit. This finding has implications for assigning summary hydrogeologic characteristics to hydrostratigraphic and hydrogeologic units. The results presented herein are specific to the hydrogeologic characteristic and to the wells used to describe hydraulic conductivity. The wells in carbonate rock are associated with a fewer number of hydrogeologic characteristics. That is, UGTA wells constructed in carbonate rock have tended to be in similar hydrogeologic materials, and show a wide range in hydraulic conductivity values and data distributions. Associations of hydraulic conductivity and hydrogeologic characteristics are graphically presented even when there are only a few data. This approach benchmarks what is currently known about the association of depth-specific hydraulic conductivity and hydrogeologic characteristics.

P. Oberlander; D. McGraw; C. Russell

2007-10-31T23:59:59.000Z

474

Laboratory modeling of hydraulic dredges and design of dredge carriage for laboratory facility  

E-Print Network (OSTI)

The deepening and maintenance of the world's ports and navigable waterways has been an integral part of the world economy for centuries. In recent years, cutterhead and draghead hydraulic suction dredges have performed a majority of the dredging work. The ongoing design and testing of hydraulic dredges is important for maintaining efficient dredging operations within the limits set by increasing environmental regulations. The high cost of building and operating a hydraulic dredge makes field testing of full-scale prototypes very expensive and time consuming. Moreover, the testing conditions are generally difficult to control, and the natural unpredictability of the sea can render experimental results inconclusive. These factors substantiate the need for laboratory model testing of hydraulic dredging operations. The usefulness of any hydraulic model depends on the degree of geometric, kinematic, and dynamic similarity between the model and its prototype. The primary challenge in establishing useful similitude criteria for model dredge studies is proper kinematic scaling of the suction inlet velocity, average particle settling velocity, dredge swing velocity, and cutter rotational speed. Despite the inherent challenges, model studies of hydraulic dredge equipment have proven useful for obtaining qualitative results. The new Coastal Engineering Laboratory at Texas A&M University is equipped with model dredge testing facilities ideal for performing such experiments. The tow/dredge carriage has a fully adjustable dredge ladder, a 14.9 kW (20 hp) cutter drive, and a 2.54 cm (3 in) dredge pump. A Programmable Logic Controller (PLC) provides computer numerical control and real-time data collection and analysis during model dredging operations. The purpose of this thesis is to investigate scaling relationships for hydraulic dredge model studies and to design a model dredge carriage for the new laboratory facilities recently constructed at the Texas A&M University College Station campus. Pursuant to the design of the new dredge modeling facilities, a rationale for scaling the model dredge operating parameters based on previous model studies is put forward. Examples of model studies that could be performed with the proposed facilities are discussed as well as how the scaling methodology is applied to each experiment to allow the quantitative interpretation of experimental data.

Glover, Gordon Jason

2002-01-01T23:59:59.000Z

475

A Liquid Metal Flume for Free Surface Magnetohydrodynamic Experiments  

SciTech Connect

We present an experiment designed to study magnetohydrodynamic effects in free-surface channel flow. The wide aspect ratio channel (the width to height ratio is about 15) is completely enclosed in an inert atmosphere to prevent oxidization of the liquid metal. A custom-designed pump reduces entrainment of oxygen, which was found to be a problem with standard centrifugal and gear pumps. Laser Doppler Velocimetry experiments characterize velocity profiles of the flow. Various flow constraints mitigate secondary circulation and end effects on the flow. Measurements of the wave propagation characteristics in the liquid metal demonstrate the surfactant effect of surface oxides and the damping of fluctuations by a cross-channel magnetic field.

Nornberg, M.D.; Ji, H.; Peterson, J.L.; Rhoads, J.R.

2008-08-27T23:59:59.000Z

476

ECONOMIC RECOVERY OF OIL TRAPPED AT FAN MARGINS USING HIGH ANGLE WELLS AND MULTIPLE HYDRAULIC FRACTURES  

Science Conference Proceedings (OSTI)

This project attempts to demonstrate the effectiveness of exploiting thin-layered, low-energy deposits at the distal margin of a prograding turbidite complex through the use of hydraulically fractured horizontal or high-angle wells. The combination of a horizontal or high-angle well and hydraulic fracturing will allow greater pay exposure than can be achieved with conventional vertical wells while maintaining vertical communication between thin interbedded layers and the wellbore. A high-angle well will be drilled in the fan-margin portion of a slope-basin clastic reservoir and will be completed with multiple hydraulic-fracture treatments. Geologic modeling, reservoir characterization, and fine-grid reservoir simulation will be used to select the well location and orientation. Design parameters for the hydraulic-fracture treatments will be determined, in part, by fracturing an existing test well. Fracture azimuth will be predicted by passive seismic monitoring of a fracture-stimulation treatment in the test well using logging tools in an offset well. The long radius, near horizontal well was drilled during the first quarter of 1996. Well conditions resulted in the 7 in. production liner sticking approximately 900 ft off bottom. Therefore, a 5 in. production liner was necessary to case this portion of the target formation. Swept-out sand intervals and a poor cement bond behind the 5 in. liner precluded two of the three originally planned hydraulic fracture treatments. As a result, all pay intervals behind the 5 in. liner were perforated and stimulated with a non-acid reactive fluid. Following a short production period, the remaining pay intervals in the well (behind the 7 in. liner) were perforated. The well was returned to production to observe production trends and pressure behavior and assess the need to stimulate the new perforations.

Mike L. Laue

2001-09-28T23:59:59.000Z

477

Thermal-Hydraulic Analysis of Advanced Mixed-Oxide Fuel Assemblies with VIPRE-01  

E-Print Network (OSTI)

Two new fuel assembly designs for light water reactors using advanced mixed-oxide fuels have been proposed to reduce the radiotoxicity of used nuclear fuel discharged from nuclear power plants. The research efforts of this thesis are the first to consider the effects of burnup on advanced mixed-oxide fuel assembly performance and thermal safety margin over an assembly?s expected operational burnup lifetime. In order to accomplish this, a new burnup-dependent thermal-hydraulic analysis methodology has been developed. The new methodology models many of the effects of burnup on an assembly design by including burnup-dependent variations in fuel pin relative power from neutronic calculations, assembly power reductions due to fissile content depletion and core reshuffling, and fuel material thermal-physical properties. Additionally, a text-based coupling method is developed to facilitate the exchange of information between the neutronic code DRAGON and thermal-hydraulic code VIPRE-01. The new methodology effectively covers the entire assembly burnup lifetime and evaluates the thermal-hydraulic performance against ANS Condition I, II, and III events with respect to the minimum departure from nucleate boiling ratio, peak cladding temperatures, and fuel centerline temperatures. A comprehensive literature survey on the thermal conductivity of posed fuel materials with burnup-dependence has been carried out to model the advanced materials in the thermal-hydraulic code VIPRE-01. Where documented conductivity values are not available, a simplified method for estimating the thermal conductivity has been developed. The new thermal conductivity models are based on established FRAPCON-3 fuel property models used in the nuclear industry, with small adjustments having been made to account for actinide additions. Steady-state and transient thermal-hydraulic analyses are performed with VIPRE- 01 for a reference UO2 assembly design, and two advanced mixed-oxide fuel assembly designs using the new burnup-dependent thermal-hydraulic analysis methodology. All three designs maintain a sufficiently large thermal margin with respect to the minimum departure from nucleate boiling ratio, and maximum cladding and fuel temperatures during partial and complete loss-of-flow accident scenarios. The presence of a thin (Am,Zr)O2 outer layer on the fuel pellet in the two advanced mixed-oxide fuel assembly designs increases maximum fuel temperatures during transient conditions, but does not otherwise greatly compromise the thermal margin of the new designs.

Bingham, Adam R.

2009-05-01T23:59:59.000Z

478

Prototype Data Models and Data Dictionaries for Hanford Sediment Physical and Hydraulic Properties  

Science Conference Proceedings (OSTI)

The Remediation Decision Support (RDS) project, managed by the Pacific Northwest National Laboratory (PNNL) for the U.S. Department of Energy (DOE) and the CH2M HILL Plateau Remediation Company (CHPRC), has been compiling physical and hydraulic property data and parameters to support risk analyses and waste management decisions at Hanford. In FY09 the RDS project developed a strategic plan for a physical and hydraulic property database. This report documents prototype data models and dictionaries for these properties and associated parameters. Physical properties and hydraulic parameters and their distributions are required for any type of quantitative assessment of risk and uncertainty associated with predictions of contaminant transport and fate in the subsurface. The central plateau of the Hanford Site in southeastern Washington State contains most of the contamination at the Site and has up to {approx}100 m of unsaturated and unconsolidated or semi-consolidated sediments overlying the unconfined aquifer. These sediments contain a wide variety of contaminants ranging from organic compounds, such as carbon tetrachloride, to numerous radionuclides including technetium, plutonium, and uranium. Knowledge of the physical and hydraulic properties of the sediments and their distributions is critical for quantitative assessment of the transport of these contaminants in the subsurface, for evaluation of long-term risks and uncertainty associated with model predictions of contaminant transport and fate, and for evaluating, designing, and operating remediation alternatives. One of the goals of PNNL's RDS project is to work with the Hanford Environmental Data Manager (currently with CHPRC) to develop a protocol and schedule for incorporation of physical property and hydraulic parameter datasets currently maintained by PNNL into HEIS. This requires that the data first be reviewed to ensure quality and consistency. New data models must then be developed for HEIS that are approved by the HTAG that oversees HEIS development. After approval, these new data models then need to be implemented in HEIS by the EDM before there is an actual repository for the data. This document summarizes modifications to previously developed data models, and new data models and data dictionaries for physical and hydraulic property data and parameters to be transferred to HEIS. A prototype dataset that conforms to the specifications of these recommended data models has been identified and processed, and is ready for transfer to CHPRC for inclusion in HEIS. Additional datasets are planned for transfer from PNNL to CHPRC in FY11.

Rockhold, Mark L.; Last, George V.; Middleton, Lisa A.

2010-09-30T23:59:59.000Z

479

Dynamic fluid loss in hydraulic fracturing under realistic shear conditions in high-permeability rocks  

SciTech Connect

A study of the dynamic fluid loss of hydraulic fracturing fluids under realistic shear conditions is presented. During a hydraulic fracturing treatment, a polymeric solution is pumped under pressure down the well to create and propagate a fracture. Part of the fluid leaks into the rock formation, leaving a skin layer of polymer or polymer filter cake, at the rock surface or in the pore space. This study focuses on the effects of shear rate and permeability on dynamic fluid-loss behavior of crosslinked and linear fracturing gels. Previous studies of dynamic fluid loss have mainly been with low-permeability cores and constant shear rates. Here, the effect of shear history and fluid-loss additive on the dynamic leakoff of high-permeability cores is examined.

Navarrete, R.C.; Cawiezel, K.E.; Constien, V.G. [Dowell Schlumberger, Tulsa, OK (United States)

1996-08-01T23:59:59.000Z

480

Determination of permeability of granitic rocks in GT-2 from hydraulic fracturing data  

DOE Green Energy (OSTI)

The Los Alamos Scientific Laboratory is currently conducting a study to determine the feasibility to extract geothermal energy from dry hot rock. The investigated concept calls for the creation of a hydraulic fracture in hot, impermeable rock. Heat will be exchanged subsequently at the fracture surface between the rock and a circulating fluid. The successful creation of hydraulic fractures in the granitic section of exploratory holes GT-1 and GT-2 yielded sufficient data to calculate the average permeability of the rock next to a fracture by means of the mathematical model. The calculated permeabilities were found to be in the microdarcy range and proved the granitic rock penetrated by GT-1 and GT-2 to be sufficiently impermeable to test the above concept. (auth)

Delisle, G.

1975-11-01T23:59:59.000Z

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481

A nonlocal model for fluid-structure interaction with applications in hydraulic fracturing  

E-Print Network (OSTI)

Modeling important engineering problems related to flow-induced damage (in the context of hydraulic fracturing among others) depends critically on characterizing the interaction of porous media and interstitial fluid flow. This work presents a new formulation for incorporating the effects of pore pressure in a nonlocal representation of solid mechanics. The result is a framework for modeling fluid-structure interaction problems with the discontinuity capturing advantages of an integral based formulation. A number of numerical examples are used to show that the proposed formulation can be applied to measure the effect of leak-off during hydraulic fracturing as well as modeling consolidation of fluid saturated rock and surface subsidence caused by fluid extraction from a geologic reservoir. The formulation incorporates the effect of pore pressure in the constitutive description of the porous material in a way that is appropriate for nonlinear materials, easily implemented in existing codes, straightforward in i...

Turner, Daniel Z

2012-01-01T23:59:59.000Z

482

Mechanisms and impact of damage resulting from hydraulic fracturing. Topical report, May 1995-July 1996  

Science Conference Proceedings (OSTI)

This topical report documents the mechanisms of formation damage following hydraulic fracturing and their impact upon gas well productivity. The categories of damage reviewed include absolute or matrix permeability damage, relative permeability alterations, the damage of natural fracture permeability mechanisms and proppant conductivity impairment. Case studies are reviewed in which attempts are made to mitigate each of the damage types. Industry surveys have been conducted to determine the perceptions of the industry on the topic of formation damage following hydraulic fracturing and to identify key formations in which formation damage is a problem. From this information, technical hurdles and new technology needs are identified and estimates are made of the benefits of developing and applying minimum formation damage technology.

Penny, G.S.; Conway, M.W.; Almond, S.W.; Himes, R.; Nick, K.E.

1996-08-01T23:59:59.000Z

483

Rock failure during massive hydraulic stimulation of the Baca location geothermal reservoir  

DOE Green Energy (OSTI)

The analyses of microearthquake signals occurring during hydraulic stimulation provide an estimate of the size and location of the fractures thus produced. Studies of microearthquakes occurring during two large (> 10/sup 3/m/sup 3/) hydraulic stimulations of the hydrothermal reservoir at the Baca Location in the Jemez Mountains of northeastern New Mexico are reported. Both stimulations consisted of water, viscosity enhancer, and proppant. The microearthquake event rate was low but variable throughout most of the treatment. Rock failure as indicated by the distribution of the microearthquakes' foci appeared restricted to a nearly vertical NE striking zone. This orientation is in good agreement with the local earth stresses inferred from geological considerations. The second stimulation which occurred in a neighboring well was similar to the first except for a larger injected volume. The lateral extent of the detected fracture system was 600 m in both stimulations.

Pearson, C.; Keppler, H.; Albright, J.; Potter, R.

1982-01-01T23:59:59.000Z