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    Displaying 231 - 240 of 240

    create topographies and measure roughness.

    Frost Effects Research Facility
    Agency
    Dept. of Defense
    Region
    Northeast
    State: 
    New Hampshire
    Phone: 
    (603) 646-4458
    Email: 
    FERF@usace.army.mil
    Lab Representatives
    Jared Oren
    E: 
    FERF@usace.army.mil
    P: 
    (603) 646-4458
    F: 
    Parent Lab: 
    USACE - ERDC - Cold Regions Research and Engineering Laboratory

    The Large Scale Climate Simulator provides controlled conditions of temperature and humidity above and below test sections as big as 12.5 ft by 12.5 ft. A test section is assembled in a platform outside the LSCS and moved by a crane. The assembly can weigh as much as 10 Tons and can be 6 ft high. A low-slope roof test section is shown being placed in the LSCS in the above photograph, and the residential attic test section is shown below. Once a test section is in place with all instrumentation installed and checked out, an automated data acquisition and control system maintains desired conditions above and below it and records the responses of thermocouples and resistance temperature devices, heat-flux transducers, relative humidity sensors, mass flowrate meters, load cells, current shunts or any transducer that produces a voltage output.

    A sketch of the entire LSCS is shown below. The climate chamber simulates any outdoor condition of interest: steady-state temperatures from 150ºF to -40ºF and a wide range of relative humidities (dewpoint temperature is controllable from 37ºF to 122ºF). Infrared lamps can heat surface temperatures to 200ºF. There is sufficient heating and refrigerating capacity to vary the simulated outdoor conditions in diurnal cycles, which allows tests of the dynamic response of test sections.

    Sketch of Large Scale Climate Simulator
    Building Technologies Research and Integration Center (BTRIC)
    Agency
    Dept. of Energy
    Region
    Southeast
    State: 
    Tennessee
    Lab Representatives
    Andre Desjarlais
    E: 
    desjarlaisa@ornl.gov
    F: 
    Parent Lab: 
    Oak Ridge National Laboratory (ORNL)

    The Roof Thermal Research Apparatus (RTRA) was constructed for documenting the effects of long-term exposure of small, low-slope roof test sections to the East Tennessee climate. The RTRA has four 4 ft by 8 ft openings in its roof to receive different instrumented low-slope roof test sections. Each test section comprises one to eight configurations. Its original use showed the in-service aging effects with CFC and alternative blowing agents for polyisocyanurate foam boards in roofs covered by black and white membranes. These test sections are shown in the photographs below. More recent use of the RTRA has been to document the thermal performance of low-slope roofs coated with reflective coatings. In June 2000, we completed a three-year study with the support of the Roof Coatings Manufacturers Association. The thermal performance of 24 different roof coating systems was monitored simultaneously.

    The Envelope Systems Research Apparatus (ESRA) was constructed to expose large areas of low-slope roof to the East Tennessee climate. The ESRA is used to study energy and moisture flow through walls and foundations. The interior of the ESRA is heated and cooled to constant conditions year round. The ESRA contains a system that does automatic, continuous data acquisition and houses communications equipment that connects the data system to the Oak Ridge National Laboratory's intranet. Since January 2000, the interior of the ESRA is the site of the ORNL Hygrothermal Properties Laboratory.

    Building Technologies Research and Integration Center (BTRIC)
    Agency
    Dept. of Energy
    Region
    Southeast
    State: 
    Tennessee
    Lab Representatives
    Andre Desjarlais
    E: 
    desjarlaisa@ornl.gov
    F: 
    Parent Lab: 
    Oak Ridge National Laboratory (ORNL)

    Researchers use the Rotatable Guarded Hot Box to test full-size wall, fenestration, roof, and floor systems. The ORNL Rotatable Guarded Hot Box is a unique envelope testing apparatus available at the Buildings Technology Center. This advanced thermal testing facility is designed in accordance with ASTM C236, Standard Test Method for "Steady-State Thermal Performance of Building Assemblies by Means of a Guarded Hot Box." The RGHB accepts test specimens that are up to 13 ft by 10 ft in cross-section with a metering chamber that is approximately 8 ft by 8 ft. The RGHB is particularly unique because it can accommodate assemblies up to 24 inches thick, which may be useful in testing projecting or extremely thick envelope assemblies, a second unique feature is that the test walls can be rotated and thermal performance measured at any angle from 0 to 180 degrees. Another unique capability is the ability to conduct dynamic guarded hot box tests on massive wall systems.

    In the above photo, the hot box is show in the open position with a test wall in place between the hot and cold chambers. To the right of the hot box is a frame in which another envelope component can be mounted for testing. The RGHB climate chamber temperature can be controlled from - 10ºF to 140ºF and the air velocity from 0 mph to 15 mph. The RGHB metering chamber temperature can be controlled from 70ºF to 140ºF and air velocity from 0 to 1 mph. The instrumentation inventory available consists of 200 Type-T thermocouple-temperature sensors, 10 thermopile type heat-flux transducers, two air velocity meters, two pressure transducers and 8 other voltage output type sensors. The test apparatus is fully automated: the chamber temperatures and air velocities are computer controlled at steady conditions or in 200 step cycles. Data collection and processing are performed in real time. The system was designed for a precision of better than 3 percent and a bias of less than 5 percent. Estimates of the error bands will be generated with all test results.

    Building Technologies Research and Integration Center (BTRIC)
    Agency
    Dept. of Energy
    Region
    Southeast
    State: 
    Tennessee
    Lab Representatives
    Andre Desjarlais
    E: 
    desjarlaisa@ornl.gov
    F: 
    Parent Lab: 
    Oak Ridge National Laboratory (ORNL)

    Operating at 85 MW, HFIR is the highest flux reactor-based source of neutrons for research in the United States, and it provides one of the highest steady-state neutron fluxes of any research reactor in the world. The thermal and cold neutrons produced by HFIR are used to study physics, chemistry, materials science, engineering, and biology. The intense neutron flux, constant power density, and constant-length fuel cycles are used by more than 500 researchers each year for neutron scattering research into the fundamental properties of condensed matter.

    The neutron scattering research facilities at HFIR contain a world-class collection of instruments used for fundamental and applied research on the structure and dynamics of matter. HFIR is also used for medical, industrial, and research isotope production; research on severe neutron damage to materials; and neutron activation analysis to examine trace elements in the environment.Additionally, the building houses a gamma irradiation facility that uses spent fuel assemblies and is capable of providing high gamma doses for studies of the effects of radiation on materials.

    CSMB | Center For Structural Molecular Biology
    Agency
    Dept. of Energy
    Parent Lab: 
    Oak Ridge National Laboratory (ORNL)
    • FEI Teneo field emission scanning electron microscope with Oxford EDS/EBSD for combined elemental and phase mapping and texture determination
    Sensitive Instrument Facility
    Agency
    Dept. of Energy
    Email: 
    linzhou@ameslab.gov
    Parent Lab: 
    Ames Laboratory (AL)
    • FEI Helios Focus Ion Beam (dual beam) system with easy lift out capabilities for TEM and 3D atom probe sample preparation, auto-slice capability for 3D reconstruction and a multi-chemical deposition system for circuit editing
    Sensitive Instrument Facility
    Agency
    Dept. of Energy
    Email: 
    linzhou@ameslab.gov
    Parent Lab: 
    Ames Laboratory (AL)
    • FEI Tecnai G2-F20 scanning transmission electron microscope (STEM) with both EDX and EELS capability
    Sensitive Instrument Facility
    Agency
    Dept. of Energy
    Email: 
    linzhou@ameslab.gov
    Parent Lab: 
    Ames Laboratory (AL)
    • FEI Titan Themis 300 Cubed probe aberration corrected STEM with Super-X EDX detector, GIF quantum ER system and a Lorentz lens with biprism, which enables rapid, precise navigation from mesoscopic to atomic scale, as well as study of intrinsic magnetic and electric fields
    Sensitive Instrument Facility
    Agency
    Dept. of Energy
    Email: 
    linzhou@ameslab.gov
    Parent Lab: 
    Ames Laboratory (AL)
    Petrographic, microthermometric, chemical, and isotopic analyses of melt and fluid inclusions. Specifications/Capabilities: To document petrographic relations among inclusions and their host minerals, DIAL is equipped with supporting sample preparation equipment, petrographic microscopes with ultraviolet (UV), infrared (IR), or cathodoluminescence (CL) capability, scanning electron microscope-cathodoluminescence (SEM-CL), and digital imaging systems. Single inclusion instruments include heating/freezing stage microscopes (T, P, salinity, density), electron microprobe (major-minor elements), laser Raman spectroscope (major gases), thermal decrepitation-quadrupole mass spectrometer and laser ablation-ion trap-time of flight-mass spectrometer (major-minor gases), as well as laser ablation-inductively coupled plasma-mass spectrometer (multielements). Bulk analysis methods include dual ion chromatograph (cations and anions), quadrupole mass spectrometer (major to trace gases), static high-resolution sector mass spectrometer (He, Ne, Ar isotopes), and isotope ratio mass spectrometers (H-O-C-S-N). The combination of, and normalization between, single and bulk inclusion data enables comprehensive characterization of magmas and hydrothermal fluids and identification of the sources, conditions, processes, and mass transfer that were critical to resource genesis. Scientific Opportunities/Applications: The chemical and isotopic compositions of melt and fluid inclusions are used to understand how magmas and hydrothermal fluids evolve and generate significant ore deposits. Such data are critical to the development of reliable assessment models for mineral resources.
    USGS National Labs
    Agency
    Dept. of Interior
    Region
    Mid-Continent
    State: 
    Colorado
    U.S. Geological Survey
    Tech Transfer Website
    Lab Representatives
    James Mitchell
    E: 
    jmmitchell@usgs.gov
    P: 
    (703) 648-4344

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