National Library of Energy BETA

Sample records for temperature control unit

  1. Advanced Rooftop Unit Control

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Advanced-Rooftop-Unit-Control Sign In About | Careers | Contact | Investors | bpa.gov Search Policy & Reporting Expand Policy & Reporting EE Sectors Expand EE Sectors...

  2. Cooled, temperature controlled electrometer

    DOE Patents [OSTI]

    Morgan, John P.

    1992-01-01

    A cooled, temperature controlled electrometer for the measurement of small currents. The device employs a thermal transfer system to remove heat from the electrometer circuit and its environment and dissipate it to the external environment by means of a heat sink. The operation of the thermal transfer system is governed by a temperature regulation circuit which activates the thermal transfer system when the temperature of the electrometer circuit and its environment exceeds a level previously inputted to the external variable temperature control circuit. The variable temperature control circuit functions as subpart of the temperature control circuit. To provide temperature stability and uniformity, the electrometer circuit is enclosed by an insulated housing.

  3. Cooled, temperature controlled electrometer

    DOE Patents [OSTI]

    Morgan, John P.

    1992-08-04

    A cooled, temperature controlled electrometer for the measurement of small currents. The device employs a thermal transfer system to remove heat from the electrometer circuit and its environment and dissipate it to the external environment by means of a heat sink. The operation of the thermal transfer system is governed by a temperature regulation circuit which activates the thermal transfer system when the temperature of the electrometer circuit and its environment exceeds a level previously inputted to the external variable temperature control circuit. The variable temperature control circuit functions as subpart of the temperature control circuit. To provide temperature stability and uniformity, the electrometer circuit is enclosed by an insulated housing.

  4. Engine Cylinder Temperature Control

    DOE Patents [OSTI]

    Kilkenny, Jonathan Patrick (Peoria, IL); Duffy, Kevin Patrick (Metamora, IL)

    2005-09-27

    A method and apparatus for controlling a temperature in a combustion cylinder in an internal combustion engine. The cylinder is fluidly connected to an intake manifold and an exhaust manifold. The method and apparatus includes increasing a back pressure associated with the exhaust manifold to a level sufficient to maintain a desired quantity of residual exhaust gas in the cylinder, and varying operation of an intake valve located between the intake manifold and the cylinder to an open duration sufficient to maintain a desired quantity of fresh air from the intake manifold to the cylinder, wherein controlling the quantities of residual exhaust gas and fresh air are performed to maintain the temperature in the cylinder at a desired level.

  5. Thermionic converter temperature controller

    DOE Patents [OSTI]

    Shaner, Benjamin J. (McMurray, PA); Wolf, Joseph H. (Pittsburgh, PA); Johnson, Robert G. R. (Trafford, PA)

    2001-04-24

    A method and apparatus for controlling the temperature of a thermionic reactor over a wide range of operating power, including a thermionic reactor having a plurality of integral cesium reservoirs, a honeycomb material disposed about the reactor which has a plurality of separated cavities, a solid sheath disposed about the honeycomb material and having an opening therein communicating with the honeycomb material and cavities thereof, and a shell disposed about the sheath for creating a coolant annulus therewith so that the coolant in the annulus may fill the cavities and permit nucleate boiling during the operation of the reactor.

  6. Filter unit for use at high temperatures

    DOE Patents [OSTI]

    Ciliberti, David F. (Murrysville Boro, PA); Lippert, Thomas E. (Murrysville, PA)

    1988-01-01

    A filtering unit for filtering particulates from high temperature gases uses a spiral ceramic spring to bias a ceramic, tubular filter element into sealing contact with a flange about an aperture of a metallic tube sheet. The ceramic spiral spring may contact the upper edge of the filter element and be restrained by a stop member spaced from one end of the tube sheet, or the spring may contact the bottom of the filter element and be restrained by a support member spaced from the opposite end of the tube sheet. The stop member and support member are adjustably secured to the tube sheet. A filtering system uses the ceramic spiral spring to bias a plurality of ceramic, tubular filter elements in a respective plurality of apertures in a tube sheet which divides a vessel into upper and lower enclosed sections.

  7. Temperature controlled high voltage regulator

    DOE Patents [OSTI]

    Chiaro, Jr., Peter J. (Clinton, TN); Schulze, Gerald K. (Knoxville, TN)

    2004-04-20

    A temperature controlled high voltage regulator for automatically adjusting the high voltage applied to a radiation detector is described. The regulator is a solid state device that is independent of the attached radiation detector, enabling the regulator to be used by various models of radiation detectors, such as gas flow proportional radiation detectors.

  8. High temperature control rod assembly

    DOE Patents [OSTI]

    Vollman, Russell E. (Solana Beach, CA)

    1991-01-01

    A high temperature nuclear control rod assembly comprises a plurality of substantially cylindrical segments flexibly joined together in succession by ball joints. The segments are made of a high temperature graphite or carbon-carbon composite. The segment includes a hollow cylindrical sleeve which has an opening for receiving neutron-absorbing material in the form of pellets or compacted rings. The sleeve has a threaded sleeve bore and outer threaded surface. A cylindrical support post has a threaded shaft at one end which is threadably engaged with the sleeve bore to rigidly couple the support post to the sleeve. The other end of the post is formed with a ball portion. A hollow cylindrical collar has an inner threaded surface engageable with the outer threaded surface of the sleeve to rigidly couple the collar to the sleeve. the collar also has a socket portion which cooperates with the ball portion to flexibly connect segments together to form a ball and socket-type joint. In another embodiment, the segment comprises a support member which has a threaded shaft portion and a ball surface portion. The threaded shaft portion is engageable with an inner threaded surface of a ring for rigidly coupling the support member to the ring. The ring in turn has an outer surface at one end which is threadably engageably with a hollow cylindrical sleeve. The other end of the sleeve is formed with a socket portion for engagement with a ball portion of the support member. In yet another embodiment, a secondary rod is slidably inserted in a hollow channel through the center of the segment to provide additional strength. A method for controlling a nuclear reactor utilizing the control rod assembly is also included.

  9. Control and Diagnostics for Rooftop Units - 2014 BTO Peer Review...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Control and Diagnostics for Rooftop Units - 2014 BTO Peer Review Control and Diagnostics for Rooftop Units - 2014 BTO Peer Review Presenter: Jim Braun, Purdue University (The ...

  10. Demonstrations of Integrated Advanced Rooftop Unit Controls and...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Demonstrations of Integrated Advanced Rooftop Unit Controls and Automated Fault Detection and Diagnostics - 2014 BTO Peer Review Demonstrations of Integrated Advanced Rooftop Unit...

  11. Demonstrations of Integrated Advanced Rooftop Unit Controls and...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Unit Suite: RTU Challenge, RTU Advanced Controls and RTU Smart Monitoring and Diagnostic System - 2013 BTO Peer Review Rooftop Unit Network Project - 2013 BTO Peer Review...

  12. Variable temperature seat climate control system

    DOE Patents [OSTI]

    Karunasiri, Tissa R.; Gallup, David F.; Noles, David R.; Gregory, Christian T.

    1997-05-06

    A temperature climate control system comprises a variable temperature seat, at least one heat pump, at least one heat pump temperature sensor, and a controller. Each heat pump comprises a number of Peltier thermoelectric modules for temperature conditioning the air in a main heat exchanger and a main exchanger fan for passing the conditioned air from the main exchanger to the variable temperature seat. The Peltier modules and each main fan may be manually adjusted via a control switch or a control signal. Additionally, the temperature climate control system may comprise a number of additional temperature sensors to monitor the temperature of the ambient air surrounding the occupant as well as the temperature of the conditioned air directed to the occupant. The controller is configured to automatically regulate the operation of the Peltier modules and/or each main fan according to a temperature climate control logic designed both to maximize occupant comfort during normal operation, and minimize possible equipment damage, occupant discomfort, or occupant injury in the event of a heat pump malfunction.

  13. Temperature-controlled molecular depolarization gates in nuclear magnetic resonance

    SciTech Connect (OSTI)

    Schroder, Leif; Schroder, Leif; Chavez, Lana; Meldrum, Tyler; Smith, Monica; Lowery, Thomas J.; E. Wemmer, David; Pines, Alexander

    2008-02-27

    Down the drain: Cryptophane cages in combination with selective radiofrequency spin labeling can be used as molecular 'transpletor' units for transferring depletion of spin polarization from a hyperpolarized 'source' spin ensemble to a 'drain' ensemble. The flow of nuclei through the gate is adjustable by the ambient temperature, thereby enabling controlled consumption of hyperpolarization.

  14. Rooftop Unit Suite: RTU Challenge, RTU Advanced Controls and...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Suite: RTU Challenge, RTU Advanced Controls and RTU Smart Monitoring and Diagnostic System - 2013 BTO Peer Review Rooftop Unit Suite: RTU Challenge, RTU Advanced Controls and RTU...

  15. Control and Room Temperature Optimization of Energy Efficient Buildings

    SciTech Connect (OSTI)

    Djouadi, Seddik M; Kuruganti, Phani Teja

    2012-01-01

    The building sector consumes a large part of the energy used in the United States and is responsible for nearly 40% of greenhouse gas emissions. It is therefore economically and environmentally important to reduce the building energy consumption to realize massive energy savings. In this paper, a method to control room temperature in buildings is proposed. The approach is based on a distributed parameter model represented by a three dimensional (3D) heat equation in a room with heater/cooler located at ceiling. The latter is resolved using finite element methods, and results in a model for room temperature with thousands of states. The latter is not amenable to control design. A reduced order model of only few states is then derived using Proper Orthogonal Decomposition (POD). A Linear Quadratic Regulator (LQR) is computed based on the reduced model, and applied to the full order model to control room temperature.

  16. Feedwater temperature control methods and systems

    DOE Patents [OSTI]

    Moen, Stephan Craig; Noonan, Jack Patrick; Saha, Pradip

    2014-04-22

    A system for controlling the power level of a natural circulation boiling water nuclear reactor (NCBWR) is disclosed. The system, in accordance with an example embodiment of the present invention, may include a controller configured to control a power output level of the NCBWR by controlling a heating subsystem to adjust a temperature of feedwater flowing into an annulus of the NCBWR. The heating subsystem may include a steam diversion line configured to receive steam generated by a core of the NCBWR and a steam bypass valve configured to receive commands from the controller to control a flow of the steam in the steam diversion line, wherein the steam received by the steam diversion line has not passed through a turbine. Additional embodiments of the invention may include a feedwater bypass valve for controlling an amount of flow of the feedwater through a heater bypass line to the annulus.

  17. Remote temperature-set-point controller

    DOE Patents [OSTI]

    Burke, William F. (Crest Hill, IL); Winiecki, Alan L. (Downers Grove, IL)

    1986-01-01

    An instrument for carrying out mechanical strain tests on metallic samples with the addition of an electrical system for varying the temperature with strain, the instrument including opposing arms and associated equipment for holding a sample and varying the mechanical strain on the sample through a plurality of cycles of increasing and decreasing strain within predetermined limits, circuitry for producing an output signal representative of the strain during the tests, apparatus including a set point and a coil about the sample for providing a controlled temperature in the sample, and circuitry interconnected between the strain output signal and set point for varying the temperature of the sample linearly with strain during the tests.

  18. Control of temperature for health and productivity inoffices...

    Office of Scientific and Technical Information (OSTI)

    ... SciTech Connect Journal Article: Control of temperature for ... Title: Control of temperature for health and productivity ... Information (OSTI) and is provided as a public service. ...

  19. Remote temperature-set-point controller

    DOE Patents [OSTI]

    Burke, W.F.; Winiecki, A.L.

    1984-10-17

    An instrument is described for carrying out mechanical strain tests on metallic samples with the addition of means for varying the temperature with strain. The instrument includes opposing arms and associated equipment for holding a sample and varying the mechanical strain on the sample through a plurality of cycles of increasing and decreasing strain within predetermined limits, circuitry for producing an output signal representative of the strain during the tests, apparatus including a a set point and a coil about the sample for providing a controlled temperature in the sample, and circuitry interconnected between the strain output signal and set point for varying the temperature of the sample linearly with strain during the tests.

  20. Parasitic load control system for exhaust temperature control

    DOE Patents [OSTI]

    Strauser, Aaron D. (Washington, IL); Coleman, Gerald N. (Peterborough, GB); Coldren, Dana R. (Fairbury, IL)

    2009-04-28

    A parasitic load control system is provided. The system may include an exhaust producing engine and a fuel pumping mechanism configured to pressurize fuel in a pressure chamber. The system may also include an injection valve configured to cause fuel pressure to build within the pressure chamber when in a first position and allow injection of fuel from the pressure chamber into one or more combustion chambers of the engine when in a second position. The system may further include a controller configured to independently regulate the pressure in the pressure chamber and the injection of fuel into the one or more combustion chambers, to increase a load on the fuel pumping mechanism, increasing parasitic load on the engine, thereby increasing a temperature of the exhaust produced by the engine.

  1. Development of an Outdoor Temperature-Based Control Algorithm...

    Office of Scientific and Technical Information (OSTI)

    Development of an Outdoor Temperature-Based Control Algorithm for Residential Mechanical Ventilation Control Citation Details In-Document Search Title: Development of an Outdoor...

  2. Active Diesel Emission Control Technology for Transport Refrigeration Units

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    | Department of Energy Transport Refrigeration Units Active Diesel Emission Control Technology for Transport Refrigeration Units This project discusses a CARB Level 2+ verified active regeneration technology for smal diesel engines PDF icon deer09_guzman.pdf More Documents & Publications Diesel Particulate Filters and NO2 Emission Limits RYPOS - An Actively Regenerated DPF that Demonstrates Significant NO2 Reduction 2005_deer_dePetrillo.pdf

  3. High temperature solid oxide fuel cell: Customer test units

    SciTech Connect (OSTI)

    Ray, E.R.; Veyo, S.E.

    1993-11-01

    There are three 25-kW class SOFC customer test unit programs; two are in Japan (utility joint ventures), one for Southern California Edison Co. The two in Japan are described: Startup, testing, modifications, and operational performance are discussed.

  4. Fuel processor temperature monitoring and control

    DOE Patents [OSTI]

    Keskula, Donald H.; Doan, Tien M.; Clingerman, Bruce J.

    2002-01-01

    In one embodiment, the method of the invention monitors one or more of the following conditions: a relatively low temperature value of the gas stream; a relatively high temperature value of the gas stream; and a rate-of-change of monitored temperature. In a preferred embodiment, the rate of temperature change is monitored to prevent the occurrence of an unacceptably high or low temperature condition. Here, at least two temperatures of the recirculating gas stream are monitored over a period of time. The rate-of-change of temperature versus time is determined. Then the monitored rate-of-change of temperature is compared to a preselected rate-of-change of value. The monitoring of rate-of-change of temperature provides proactive means for preventing occurrence of an unacceptably high temperature in the catalytic reactor.

  5. Device for self-verifying temperature measurement and control

    DOE Patents [OSTI]

    Watkins, Arthur D.; Cannon, Collins P.; Tolle, Charles R.

    2004-08-03

    A measuring instrument includes a first temperature sensor, a second temperature sensor and circuitry. The first and second temperature sensors each generate a signal indicative of the temperature of a medium being detected. The circuitry is configured to activate verification of temperature being sensed with the first sensor. According to one construction, the first temperature sensor comprises at least one thermocouple temperature sensor and the second temperature sensor comprises an optical temperature sensor, each sensor measuring temperature over the same range of temperature, but using a different physical phenomena. Also according to one construction, the circuitry comprises a computer configured to detect failure of one of the thermocouples by comparing temperature of the optical temperature sensor with each of the thermocouple temperature sensors. Even further, an output control signal is generated via a fuzzy inference machine and control apparatus.

  6. Adaptive Control to Improve Low Temperature Diesel Engine Combustion...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Adaptive Control to Improve Low Temperature Diesel Engine Combustion Presentation given at ... More Documents & Publications An Enabling Study of Diesel Low-Temperautre Combustion via ...

  7. High performance internal reforming unit for high temperature fuel cells

    DOE Patents [OSTI]

    Ma, Zhiwen (Sandy Hook, CT); Venkataraman, Ramakrishnan (New Milford, CT); Novacco, Lawrence J. (Brookfield, CT)

    2008-10-07

    A fuel reformer having an enclosure with first and second opposing surfaces, a sidewall connecting the first and second opposing surfaces and an inlet port and an outlet port in the sidewall. A plate assembly supporting a catalyst and baffles are also disposed in the enclosure. A main baffle extends into the enclosure from a point of the sidewall between the inlet and outlet ports. The main baffle cooperates with the enclosure and the plate assembly to establish a path for the flow of fuel gas through the reformer from the inlet port to the outlet port. At least a first directing baffle extends in the enclosure from one of the sidewall and the main baffle and cooperates with the plate assembly and the enclosure to alter the gas flow path. Desired graded catalyst loading pattern has been defined for optimized thermal management for the internal reforming high temperature fuel cells so as to achieve high cell performance.

  8. Adaptive Control to Improve Low Temperature Diesel Engine Combustion |

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Department of Energy Control to Improve Low Temperature Diesel Engine Combustion Adaptive Control to Improve Low Temperature Diesel Engine Combustion Presentation given at DEER 2006, August 20-24, 2006, Detroit, Michigan. Sponsored by the U.S. DOE's EERE FreedomCar and Fuel Partnership and 21st Century Truck Programs. PDF icon 2006_deer_zheng.pdf More Documents & Publications An Enabling Study of Diesel Low-Temperautre Combustion via Adaptive Control Fuel Modification t Facilitate Future

  9. System for controlling the operating temperature of a fuel cell

    DOE Patents [OSTI]

    Fabis, Thomas R.; Makiel, Joseph M.; Veyo, Stephen E.

    2006-06-06

    A method and system are provided for improved control of the operating temperature of a fuel cell (32) utilizing an improved temperature control system (30) that varies the flow rate of inlet air entering the fuel cell (32) in response to changes in the operating temperature of the fuel cell (32). Consistent with the invention an improved temperature control system (30) is provided that includes a controller (37) that receives an indication of the temperature of the inlet air from a temperature sensor (39) and varies the heat output by at least one heat source (34, 36) to maintain the temperature of the inlet air at a set-point T.sub.inset. The controller (37) also receives an indication of the operating temperature of the fuel cell (32) and varies the flow output by an adjustable air mover (33), within a predetermined range around a set-point F.sub.set, in order to maintain the operating temperature of the fuel cell (32) at a set-point T.sub.opset.

  10. Synchronous temperature rate control for refrigeration with reduced energy consumption

    DOE Patents [OSTI]

    Gomes, Alberto Regio; Keres, Stephen L.; Kuehl, Steven J.; Litch, Andrew D.; Richmond, Peter J.; Wu, Guolian

    2015-09-22

    Methods of operation for refrigerator appliance configurations with a controller, a condenser, at least one evaporator, a compressor, and two refrigeration compartments. The configuration may be equipped with a variable-speed or variable-capacity compressor, variable speed evaporator or compartment fans, a damper, and/or a dual-temperature evaporator with a valve system to control flow of refrigerant through one or more pressure reduction devices. The methods may include synchronizing alternating cycles of cooling each compartment to a temperature approximately equal to the compartment set point temperature by operation of the compressor, fans, damper and/or valve system. The methods may also include controlling the cooling rate in one or both compartments. Refrigeration compartment cooling may begin at an interval before or after when the freezer compartment reaches its lower threshold temperature. Freezer compartment cooling may begin at an interval before or after when the freezer compartment reaches its upper threshold temperature.

  11. Temperature control system for a J-module heat exchanger

    DOE Patents [OSTI]

    Basdekas, Demetrios L. (Rockville, PA); Macrae, George (Murrysville, PA); Walsh, Joseph M. (Pittsburgh, PA)

    1978-01-01

    The level of primary fluid is controlled to change the effective heat transfer area of a heat exchanger utilized in a liquid metal nuclear power plant to eliminate the need for liquid metal control valves to regulate the flow of primary fluid and the temperature of the effluent secondary fluid.

  12. PARTICLE ACCELERATOR AND METHOD OF CONTROLLING THE TEMPERATURE THEREOF

    DOE Patents [OSTI]

    Neal, R.B.; Gallagher, W.J.

    1960-10-11

    A method and means for controlling the temperature of a particle accelerator and more particularly to the maintenance of a constant and uniform temperature throughout a particle accelerator is offered. The novel feature of the invention resides in the provision of two individual heating applications to the accelerator structure. The first heating application provided is substantially a duplication of the accelerator heat created from energization, this first application being employed only when the accelerator is de-energized thereby maintaining the accelerator temperature constant with regard to time whether the accelerator is energized or not. The second heating application provided is designed to add to either the first application or energization heat in a manner to create the same uniform temperature throughout all portions of the accelerator.

  13. Temperature-dependent liquid metal flowrate control device

    DOE Patents [OSTI]

    Carlson, Roger D.

    1978-01-01

    A temperature-dependent liquid metal flowrate control device includes a magnet and a ferromagnetic member defining therebetween a flow path for liquid metal, the ferromagnetic member being formed of a material having a curie temperature at which a change in the flow rate of the liquid metal is desired. According to the preferred embodiment the magnet is a cylindrical rod magnet axially disposed within a cylindrical member formed of a curie material and having iron pole pieces at the ends. A cylindrical iron shunt and a thin wall stainless steel barrier are disposed in the annulus between magnet and curie material. Below the curie temperature flow between steel barrier and curie material is impeded and above the curie temperature flow impedance is reduced.

  14. Field Test of Boiler Primary Loop Temperature Controller

    SciTech Connect (OSTI)

    Glanville, P.; Rowley, P.; Schroeder, D.; Brand, L.

    2014-09-01

    Beyond these initial system efficiency upgrades are an emerging class of Advanced Load Monitoring (ALM) aftermarket controllers that dynamically respond to the boiler load, with claims of 10% to 30% of fuel savings over a heating season. For hydronic boilers specifically, these devices perform load monitoring, with continuous measurement of supply and, in some cases, return water temperatures. Energy savings from these ALM controllers are derived from dynamic management of the boiler differential, where a microprocessor with memory of past boiler cycles prevents the boiler from firing for a period of time, to limit cycling losses and inefficient operation during perceived low load conditions. These differ from OTR controllers, which vary boiler setpoint temperatures with ambient conditions while maintaining a fixed differential.

  15. Non-Sooting, Low Flame Temperature Mixing-Controlled DI Diesel...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Sooting, Low Flame Temperature Mixing-Controlled DI Diesel Combustion Non-Sooting, Low Flame Temperature Mixing-Controlled DI Diesel Combustion 2003 DEER Conference Presentation: ...

  16. Control and Diagnostics for Rooftop Units- 2014 BTO Peer Review

    Broader source: Energy.gov [DOE]

    Presenter: Jim Braun, Purdue University (The Pennsylvania State University Consortium for Building Energy Innovation) This project aims to develop and validate cost-effective methods for rooftop air conditioning unit (RTU) coordination and diagnostics in small commercial buildings.

  17. Field Test of Boiler Primary Loop Temperature Controller

    SciTech Connect (OSTI)

    Glanville, P.; Rowley, P.; Schroeder, D.; Brand, L.

    2014-09-01

    Beyond these initial system efficiency upgrades are an emerging class of Advanced Load Monitoring (ALM) aftermarket controllers that dynamically respond to the boiler load, with claims of 10% to 30% of fuel savings over a heating season. For hydronic boilers specifically, these devices perform load monitoring, with continuous measurement of supply and in some cases return water temperatures. Energy savings from these ALM controllers are derived from dynamic management of the boiler differential, where a microprocessor with memory of past boiler cycles prevents the boiler from firing for a period of time, to limit cycling losses and inefficient operation during perceived low load conditions. These differ from OTR controllers, which vary boiler setpoint temperatures with ambient conditions while maintaining a fixed differential. PARR installed and monitored the performance of one type of ALM controller, the M2G from Greffen Systems, at multifamily sites in the city of Chicago and its suburb Cary, IL, both with existing OTR control. Results show that energy savings depend on the degree to which boilers are over-sized for their load, represented by cycling rates. Also savings vary over the heating season with cycling rates, with greater savings observed in shoulder months. Over the monitoring period, over-sized boilers at one site showed reductions in cycling and energy consumption in line with prior laboratory studies, while less over-sized boilers at another site showed muted savings.

  18. Controlled Chemistry Helium High Temperature Materials Test Loop

    SciTech Connect (OSTI)

    Richard N. WRight

    2005-08-01

    A system to test aging and environmental effects in flowing helium with impurity content representative of the Next Generation Nuclear Plant (NGNP) has been designed and assembled. The system will be used to expose microstructure analysis coupons and mechanical test specimens for up to 5,000 hours in helium containing potentially oxidizing or carburizing impurities controlled to parts per million levels. Impurity levels in the flowing helium are controlled through a feedback mechanism based on gas chromatography measurements of the gas chemistry at the inlet and exit from a high temperature retort containing the test materials. Initial testing will focus on determining the nature and extent of combined aging and environmental effects on microstructure and elevated temperature mechanical properties of alloys proposed for structural applications in the NGNP, including Inconel 617 and Haynes 230.

  19. Cycle simulation of the low-temperature triple-effect absorption chiller with vapor compression unit

    SciTech Connect (OSTI)

    Kim, J.S.; Lee, H.

    1999-07-01

    The construction of a triple-effect absorption chiller machine using the lithium bromide-water solution as a working fluid is strongly limited by corrosion problems caused by the high generator temperature. In this work, three new cycles having the additional vapor compression units were suggested in order to lower the generator temperature of a triple-effect absorption chiller. Each new cycle has one compressor located at the different position which was used to elevate the pressure of the refrigerant vapor. Computer simulations were carried out in order to examine both the basic triple-effect cycle and three new cycles. All types of triple-effect absorption chiller cycles were found to be able to lower the temperature of high-temperature generator to the more favorable operation range. The COPs of three cycles calculated by considering the additional compressor works showed a small level of decrease or increase compared with that of the basic triple-effect cycle. Consequently, a low-temperature triple-effect absorption chiller can be possibly constructed by adapting one of three new cycles. A great advantage of these new cycles over the basic one is that the conventionally used lithium bromide-water solution can be successfully used as a working fluid without the danger of corrosion.

  20. Temperature feedback control for long-term carrier-envelope phase locking

    DOE Patents [OSTI]

    Chang, Zenghu (Manhattan, KS); Yun, Chenxia (Manhattan, KS); Chen, Shouyuan (Manhattan, KS); Wang, He (Manhattan, KS); Chini, Michael (Manhattan, KS)

    2012-07-24

    A feedback control module for stabilizing a carrier-envelope phase of an output of a laser oscillator system comprises a first photodetector, a second photodetector, a phase stabilizer, an optical modulator, and a thermal control element. The first photodetector may generate a first feedback signal corresponding to a first portion of a laser beam from an oscillator. The second photodetector may generate a second feedback signal corresponding to a second portion of the laser beam filtered by a low-pass filter. The phase stabilizer may divide the frequency of the first feedback signal by a factor and generate an error signal corresponding to the difference between the frequency-divided first feedback signal and the second feedback signal. The optical modulator may modulate the laser beam within the oscillator corresponding to the error signal. The thermal control unit may change the temperature of the oscillator corresponding to a signal operable to control the optical modulator.

  1. Rooftop Unit Suite: RTU Challenge, RTU Advanced Controls and...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Suite of Projects RTU Suite: RTU Challenge, RTU Advanced Controls and RTU Smart Monitoring ... of 46% * The retrofitable smart monitoring and diagnostic system (SMDS) should ...

  2. Optimal control of the heave motion of marine cable/subsea-unit systems

    SciTech Connect (OSTI)

    Huang, S.; Vassalos, D.

    1995-12-31

    One of the key problems associated with subsea operations involving tethered subsea units is the motions of support vessels on the ocean surface which can be transmitted to the subsea unit through the cable and increase the tension. In this paper, a theoretical approach for heave compensation is developed. After proper modeling of each element of the system, which includes the cable/subsea-unit, the onboard winch, control theory is applied to design an optimal control law. Numerical simulations are carried out, and it is found that the proposed active control scheme appears to be a promising solution to the problem of heave compensation.

  3. Robust isothermal electric control of exchange bias at room temperature

    SciTech Connect (OSTI)

    He, X.; Vescovo, E.; Wang, Y.; Caruso, A.N.; Belashchenko, K.D.; Dowben, P.A.; Binek, C.

    2010-06-20

    Voltage-controlled spin electronics is crucial for continued progress in information technology. It aims at reduced power consumption, increased integration density and enhanced functionality where non-volatile memory is combined with high-speed logical processing. Promising spintronic device concepts use the electric control of interface and surface magnetization. From the combination of magnetometry, spin-polarized photoemission spectroscopy, symmetry arguments and first-principles calculations, we show that the (0001) surface of magnetoelectric Cr{sub 2}O{sub 3} has a roughness-insensitive, electrically switchable magnetization. Using a ferromagnetic Pd/Co multilayer deposited on the (0001) surface of a Cr{sub 2}O{sub 3} single crystal, we achieve reversible, room-temperature isothermal switching of the exchange-bias field between positive and negative values by reversing the electric field while maintaining a permanent magnetic field. This effect reflects the switching of the bulk antiferromagnetic domain state and the interface magnetization coupled to it. The switchable exchange bias sets in exactly at the bulk Neel temperature.

  4. Multifunctional potentiometric gas sensor array with an integrated temperature control and temperature sensors

    DOE Patents [OSTI]

    Blackburn, Bryan M; Wachsman, Eric D

    2015-05-12

    Embodiments of the subject invention relate to a gas sensor and method for sensing one or more gases. An embodiment incorporates an array of sensing electrodes maintained at similar or different temperatures, such that the sensitivity and species selectivity of the device can be fine tuned between different pairs of sensing electrodes. A specific embodiment pertains to a gas sensor array for monitoring combustion exhausts and/or chemical reaction byproducts. An embodiment of the subject device related to this invention operates at high temperatures and can withstand harsh chemical environments. Embodiments of the device are made on a single substrate. The devices can also be made on individual substrates and monitored individually as if they were part of an array on a single substrate. The device can incorporate sensing electrodes in the same environment, which allows the electrodes to be coplanar and, thus, keep manufacturing costs low. Embodiments of the device can provide improvements to sensitivity, selectivity, and signal interference via surface temperature control.

  5. Respirable dust control on longwall mining operations in the United States

    SciTech Connect (OSTI)

    Mundell, R.L.; Jankowski, R.A.; Ondrey, R.S.; Tomb, T.F.

    1984-01-01

    Between 1967 and 1978 use of longwall methods to mine coal in the United States continually increased. Although these methods offer several advantages, health hazards often exist because of unique and difficult problems in the control of respirable dust. This paper discusses the results of respirable dust studies conducted on United States longwall mining operations in 1972 and 1978. Prevalent engineering control methods (ventilation, water application and use of machine cutting parameters) and administrative controls for minimizing employees' respirable dust exposure are discussed. Current research efforts for the control of respirable dust on longwall mining operations are reviewed. 21 figs.

  6. Device and method for self-verifying temperature measurement and control

    DOE Patents [OSTI]

    Watkins, Arthur D.; Cannon, Collins P.; Tolle, Charles R.

    2002-10-29

    A measuring instrument includes a first temperature sensor, a second temperature sensor and circuitry. The first and second temperature sensors each generate a signal indicative of the temperature of a medium being detected. The circuitry is configured to activate verification of temperature being sensed with the first sensor. According to one construction, the first temperature sensor comprises at least one thermocouple temperature sensor and the second temperature sensor comprises an optical temperature sensor, each sensor measuring temperature over the same range of temperature, but using a different physical phenomena. Also according to one construction, the circuitry comprises a computer configured to detect failure of one of the thermocouples by comparing temperature of the optical temperature sensor with each of the thermocouple temperature sensors. Even further, an output control signal is generated via a fuzzy inference machine and control apparatus.

  7. Development of an Outdoor Temperature-Based Control Algorithm...

    Office of Scientific and Technical Information (OSTI)

    of Science (SC) Country of Publication: United States Language: English Subject: 32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; 99 GENERAL AND MISCELLANEOUS Word Cloud...

  8. Rooftop Unit Suite: RTU Challenge, RTU Advanced Controls and RTU Smart

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Monitoring and Diagnostic System - 2013 BTO Peer Review | Department of Energy Suite: RTU Challenge, RTU Advanced Controls and RTU Smart Monitoring and Diagnostic System - 2013 BTO Peer Review Rooftop Unit Suite: RTU Challenge, RTU Advanced Controls and RTU Smart Monitoring and Diagnostic System - 2013 BTO Peer Review Commercial Buildings Integration Project for the 2013 Building Technologies Office's Program Peer Review PDF icon commlbldgs16_brambley_040413.pdf More Documents &

  9. Method and apparatus for controlling hybrid powertrain system in response to engine temperature

    DOE Patents [OSTI]

    Martini, Ryan D; Spohn, Brian L; Lehmen, Allen J; Cerbolles, Teresa L

    2014-10-07

    A method for controlling a hybrid powertrain system including an internal combustion engine includes controlling operation of the hybrid powertrain system in response to a preferred minimum coolant temperature trajectory for the internal combustion engine.

  10. Coolant and ambient temperature control for chillerless liquid cooled data centers

    DOE Patents [OSTI]

    Chainer, Timothy J.; David, Milnes P.; Iyengar, Madhusudan K.; Parida, Pritish R.; Simons, Robert E.

    2016-02-02

    Cooling control methods include measuring a temperature of air provided to a plurality of nodes by an air-to-liquid heat exchanger, measuring a temperature of at least one component of the plurality of nodes and finding a maximum component temperature across all such nodes, comparing the maximum component temperature to a first and second component threshold and comparing the air temperature to a first and second air threshold, and controlling a proportion of coolant flow and a coolant flow rate to the air-to-liquid heat exchanger and the plurality of nodes based on the comparisons.

  11. Non-Sooting, Low Flame Temperature Mixing-Controlled DI Diesel Combustion |

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Department of Energy Sooting, Low Flame Temperature Mixing-Controlled DI Diesel Combustion Non-Sooting, Low Flame Temperature Mixing-Controlled DI Diesel Combustion 2003 DEER Conference Presentation: Sandia National Laboratories PDF icon 2003_deer_pickett.pdf More Documents & Publications Effects of Ambient Density and Temperature on Soot Formation under High-EGR Conditions Fuels and Combustion Strategies for High-Efficiency Clean-Combustion Engines Optical-Engine and Surrogate-Fuels

  12. Method of controlling temperature of a thermoelectric generator in an exhaust system

    DOE Patents [OSTI]

    Prior, Gregory P; Reynolds, Michael G; Cowgill, Joshua D

    2013-05-21

    A method of controlling the temperature of a thermoelectric generator (TEG) in an exhaust system of an engine is provided. The method includes determining the temperature of the heated side of the TEG, determining exhaust gas flow rate through the TEG, and determining the exhaust gas temperature through the TEG. A rate of change in temperature of the heated side of the TEG is predicted based on the determined temperature, the determined exhaust gas flow rate, and the determined exhaust gas temperature through the TEG. Using the predicted rate of change of temperature of the heated side, exhaust gas flow rate through the TEG is calculated that will result in a maximum temperature of the heated side of the TEG less than a predetermined critical temperature given the predicted rate of change in temperature of the heated side of the TEG. A corresponding apparatus is provided.

  13. Control for monitoring thickness of high temperature refractory

    DOE Patents [OSTI]

    Caines, M.J.

    1982-11-23

    This invention teaches an improved monitoring device for detecting the changes in thickness of high-temperature refractory, the device consists of a probe having at least two electrically conductive generally parallel elements separated by a dielectric material. The probe is implanted or embedded directly in the refractory and is elongated to extend in line with the refractory thickness to be measured. Electrical inputs to the conductive elements provide that either or both the electrical conductance or capacitance can be found, so that charges over lapsed time periods can be compared in order to detect changes in the thickness of the refractory.

  14. Understanding and controlling low-temperature aging of nanocrystalline materials.

    SciTech Connect (OSTI)

    Battaile, Corbett Chandler; Boyce, Brad Lee; Brons, Justin G.; Foiles, Stephen Martin; Hattar, Khalid Mikhiel; Holm, Elizabeth Ann; Padilla, Henry A.,; Sharon, John Anthony; Thompson, Gregory B.

    2013-10-01

    Nanocrystalline copper lms were created by both repetitive high-energy pulsed power, to produce material without internal nanotwins; and pulsed laser deposition, to produce nan- otwins. Samples of these lms were indented at ambient (298K) and cryogenic temperatures by immersion in liquid nitrogen (77K) and helium (4K). The indented samples were sectioned through the indented regions and imaged in a scanning electron microscope. Extensive grain growth was observed in the lms that contained nanotwins and were indented cryogenically. The lms that either lacked twins, or were indented under ambient conditions, were found to exhibit no substantial grain growth by visual inspection. Precession transmission elec- tron microscopy was used to con rm these ndings quantitatively, and show that 3 and 7 boundaries proliferate during grain growth, implying that these interface types play a key role in governing the extensive grain growth observed here. Molecular dynamics sim- ulations of the motion of individual grain boundaries demonstrate that speci c classes of boundaries - notably 3 and 7 - exhibit anti- or a-thermal migration, meaning that their mobilities either increase or do not change signi cantly with decreasing temperature. An in-situ cryogenic indentation capability was developed and implemented in a transmission electron microscope. Preliminary results do not show extensive cryogenic grain growth in indented copper lms. This discrepancy could arise from the signi cant di erences in con g- uration and loading of the specimen between the two approaches, and further research and development of this capability is needed.

  15. Energy Savings and Economics of Advanced Control Strategies for Packaged Air-Conditioning Units with Gas Heat

    SciTech Connect (OSTI)

    Wang, Weimin; Katipamula, Srinivas; Huang, Yunzhi; Brambley, Michael R.

    2011-12-31

    Pacific Northwest National Laboratory (PNNL) with funding from the U.S. Department of Energy's Building Technologies Program (BTP) evaluated a number of control strategies that can be implemented in a controller, to improve the operational efficiency of the packaged air conditioning units. The two primary objectives of this research project are: (1) determine the magnitude of energy savings achievable by retrofitting existing packaged air conditioning units with advanced control strategies not ordinarily used for packaged units and (2) estimating what the installed cost of a replacement control with the desired features should be in various regions of the U.S. This document reports results of the study.

  16. A novel technique to control high temperature materials degradation in fossil plants

    SciTech Connect (OSTI)

    Gonzalez-Rodriguez, J.G.; Porcayo-Calderon, J.; Martinez-Villafane, A.

    1995-11-01

    High temperature corrosion of superheater (SH) and, specially, reheater (RH) is strongly dependent on metal temperature. In this work, a way to continuously monitor the metal temperature of SH or RH, elements developed by the Instituto de Investigaciones Electricas (IIE) is described and the effects of operating parameters on metal temperature are evaluated. Also, the effects the steam-generator design and metal temperature on the corrosion rates have been investigated. In some steam generators, corrosion rates were reduced from 0.7 to 0.2 mm/y by changing the tube material and reducing the metal temperature. Also, the effect of metal temperature on the residual life of a 347H tube in a 158MW steam generator is evaluated. It is concluded that metal temperature is the most important parameter in controlling the high-temperature materials behavior in boiler environments.

  17. Use of Low-Temperature Geothermal Energy for Desalination in the Western United States

    SciTech Connect (OSTI)

    Turchi, Craig S.; Akar, Sertac; Cath, Tzahi; Vanneste, Johan; Geza, Mengistu

    2015-11-01

    This joint project between the National Renewable Energy Laboratory and the Colorado School of Mines has examined the potential of using low-temperature geothermal resources for desalination. The temperature range in question is not well suited for electricity generation, but can be used for direct heating. Accordingly, the best integration approaches use thermal desalination technologies such as multi-effect distillation (MED) or membrane distillation (MD), rather than electric-driven technologies such as reverse osmosis (RO). The examination of different desalination technologies led to the selection of MD for pairing with geothermal energy. MD operates at near-ambient pressure and temperatures less than 100°C with hydrophobic membranes. The technology is modular like RO, but the equipment costs are lower. The thermal energy demands of MD are higher than MED, but this is offset by an ability to run at lower temperatures and a low capital cost. Consequently, a geothermal-MD system could offer a low capital cost and, if paired with low-cost geothermal energy, a low operating cost. The target product water cost is $1.0 to $1.5 per cubic meter depending on system capacity and the cost of thermal energy.

  18. Impacts of Rising Air Temperatures and Emissions Mitigation on Electricity Demand and Supply in the United States. A Multi-Model Comparison

    SciTech Connect (OSTI)

    McFarland, James; Zhou, Yuyu; Clarke, Leon; Sullivan, Patrick; Colman, Jesse; Jaglom, Wendy S.; Colley, Michelle; Patel, Pralit; Eom, Jiyon; Kim, Son H.; Kyle, G. Page; Schultz, Peter; Venkatesh, Boddu; Haydel, Juanita; Mack, Charlotte; Creason, Jared

    2015-06-10

    The electric power sector both affects and is affected by climate change. Numerous studies highlight the potential of the power sector to reduce greenhouse gas emissions. Fewer studies have explored the physical impacts of climate change on the power sector. Our present analysis examines how projected rising temperatures affect the demand for and supply of electricity. We apply a common set of temperature projections to three well-known electric sector models in the United States: the US version of the Global Change Assessment Model (GCAM-USA), the Regional Electricity Deployment System model (ReEDS), and the Integrated Planning Model (IPM®). Incorporating the effects of rising temperatures from a control scenario without emission mitigation into the models raises electricity demand by 1.6 to 6.5 % in 2050 with similar changes in emissions. Moreover, the increase in system costs in the reference scenario to meet this additional demand is comparable to the change in system costs associated with decreasing power sector emissions by approximately 50 % in 2050. This result underscores the importance of adequately incorporating the effects of long-run temperature change in climate policy analysis.

  19. Impacts of Rising Air Temperatures and Emissions Mitigation on Electricity Demand and Supply in the United States. A Multi-Model Comparison

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    McFarland, James; Zhou, Yuyu; Clarke, Leon; Sullivan, Patrick; Colman, Jesse; Jaglom, Wendy S.; Colley, Michelle; Patel, Pralit; Eom, Jiyon; Kim, Son H.; et al

    2015-06-10

    The electric power sector both affects and is affected by climate change. Numerous studies highlight the potential of the power sector to reduce greenhouse gas emissions. Fewer studies have explored the physical impacts of climate change on the power sector. Our present analysis examines how projected rising temperatures affect the demand for and supply of electricity. We apply a common set of temperature projections to three well-known electric sector models in the United States: the US version of the Global Change Assessment Model (GCAM-USA), the Regional Electricity Deployment System model (ReEDS), and the Integrated Planning Model (IPM®). Incorporating the effectsmore » of rising temperatures from a control scenario without emission mitigation into the models raises electricity demand by 1.6 to 6.5 % in 2050 with similar changes in emissions. Moreover, the increase in system costs in the reference scenario to meet this additional demand is comparable to the change in system costs associated with decreasing power sector emissions by approximately 50 % in 2050. This result underscores the importance of adequately incorporating the effects of long-run temperature change in climate policy analysis.« less

  20. Integration of Photovoltaics into Building Energy Usage through Advanced Control of Rooftop Unit

    SciTech Connect (OSTI)

    Starke, Michael R; Nutaro, James J; Irminger, Philip; Ollis, Benjamin; Kuruganti, Phani Teja; Fugate, David L

    2014-01-01

    This paper presents a computational approach to forecast photovoltaic (PV) power in kW based on a neural network linkage of publicly available cloud cover data and on-site solar irradiance sensor data. We also describe a control approach to utilize rooftop air conditioning units (RTUs) to support renewable integration. The PV forecasting method is validated using data from a rooftop PV panel installed on the Distributed Energy, Communications, and Controls (DECC) laboratory at Oak Ridge National Laboratory. The validation occurs in multiple phases to ensure that each component of the approach is the best representation of the actual expected output. The control of the RTU is based on model predictive methods.

  1. Corrosion of packaged cadmium plated electrical control units from paint vapors

    SciTech Connect (OSTI)

    Brough, L.A.

    1987-08-01

    One of the most widely used methods of controlling the degradation of steel is the application of paint. It is relatively easy to accomplish and very economical. Painted steel is used successfully for many applications, including industrial equipment with electrical enclosures. Unless the proper paint and application procedures are selected, corrosion problems may develop directly from the paint, as the following incident will illustrate. A few years ago, a large electrical control enclosure (30 x 72 x 18 in. (76 x 183 x 46 cm)) was supplied to a customer with the control wiring and hardware mounted inside, which included a number of cadmium plated components. The enclosure had been painted inside with a fast drying, vinyl alkyd white enamel shortly before assembly. Since it was known that the completed unit would probably be stored at the customer's plant site for some time before installation, elaborate procedures were followed to retard or prevent degradation of any part of the system.

  2. Synchronous temperature rate control and apparatus for refrigeration with reduced energy consumption

    DOE Patents [OSTI]

    Gomes, Alberto Regio; Keres, Stephen L.; Kuehl, Steven J.; Litch, Andrew D.; Richmond, Peter J.; Wu, Guolian

    2015-09-22

    A refrigerator appliance configuration, and associated methods of operation, for an appliance with a controller, a condenser, at least one evaporator, a compressor, and two refrigeration compartments. The configuration may be equipped with a variable-speed or variable-capacity compressor, variable speed evaporator or compartment fans, a damper, and/or a dual-temperature evaporator with a valve system to control flow of refrigerant through one or more pressure reduction devices. The controller, by operation of the compressor, fans, damper and/or valve system, depending on the appliance configuration, synchronizes alternating cycles of cooling each compartment to a temperature approximately equal to the compartment set point temperature.

  3. Heat recovery steam generator outlet temperature control system for a combined cycle power plant

    SciTech Connect (OSTI)

    Martens, A.; Myers, G.A.; McCarty, W.L.; Wescott, K.R.

    1986-04-01

    This patent describes a command cycle electrical power plant including: a steam turbine and at least one set comprising a gas turbine, an afterburner and a heat recovery steam generator having an attemperator for supplying from an outlet thereof to the steam turbine superheated steam under steam turbine operating conditions requiring predetermined superheated steam temperature, flow and pressure; with the gas turbine and steam turbine each generating megawatts in accordance with a plant load demand; master control means being provided for controlling the steam turbine and the heat recovery steam generator so as to establish the steam operating conditions; the combination of: first control means responsive to the gas inlet temperature of the heat recovery steam generator and to the plant load demand for controlling the firing of the afterburner; second control means responsive to the superheated steam predetermined temperature and to superheated steam temperature from the outlet for controlling the attemperator between a closed and an open position; the first and second control means being operated concurrently to maintain the superheated steam outlet temperature while controlling the load of the gas turbine independently of the steam turbine operating conditions.

  4. Cost-effectiveness of emission control at fossil-fuel units for different cumulative load patterns

    SciTech Connect (OSTI)

    Roy, S.

    1997-02-01

    This paper describes a method to recommend allocation of generating units, with a view to achieve cost-effective control of particulate and gaseous emissions over an energy scenario. Definition of relative cost and relative emission, with respect to corresponding base-case values, allows one to develop a model that describes cost and emission aspects of the chosen scenario. Optimization of this model, by any appropriate linear-programming software, yields the allocation levels to be recommended. The emphasis of this paper is on the way in which results of the said optimization model reflect the effect of demand patterns on the allocation levels. Depending on the demands, required generation levels from each individual unit may differ. This affects the overall generation cost, and simultaneously the emissions from the thermal units, both relative to respective base values. Since the optimization algorithm attempts to reduce both the relative quantities, its results always reflect the changing generation vs. emission tradeoff for utilities vis-a-vis different demand patterns.

  5. Demonstrations of Integrated Advanced Rooftop Unit Controls and Automated Fault Detection and Diagnostics- 2014 BTO Peer Review

    Broader source: Energy.gov [DOE]

    Presenter: Srinivas Katipamula, Pacific Northwest National Laboratory This multiyear research and development project aims to determine the magnitude of energy savings achievable by retrofitting existing packaged rooftop air conditioner units (RTUs) with advanced control strategies not ordinarily used for packaged units.

  6. Method and apparatus for controlling combustor temperature during transient load changes

    DOE Patents [OSTI]

    Clingerman, Bruce J. (Palmyra, NY); Chalfant, Robert W. (West Henrietta, NY)

    2002-01-01

    A method and apparatus for controlling the temperature of a combustor in a fuel cell apparatus includes a fast acting air bypass valve connected in parallel with an air inlet to the combustor. A predetermined excess quantity of air is supplied from an air source to a series connected fuel cell and combustor. The predetermined excess quantity of air is provided in a sufficient amount to control the temperature of the combustor during start-up of the fuel processor when the load on the fuel cell is zero and to accommodate any temperature transients during operation of the fuel cell.

  7. Arms control is everyone`s business: The United States and the United Nations at the mid-point of the 1990`s

    SciTech Connect (OSTI)

    Lehman, R.F. II

    1993-03-01

    This presentation encourages current efforts in arms control, non- proliferation, and peacekeeping. Verification is heralded as a confidence building method to bring about more openness in international relations. It is purported that openness has already enhanced democratic forces around the world. The insistence on strict compliance with the decisions of the United Nations Security Council is a show of support for international law. It is recommended that international norms on human rights, non-proliferation, and non-aggression be strengthened.

  8. Article comprising a garment or other textile structure for use in controlling body temperature

    DOE Patents [OSTI]

    Butzer, Melissa J. (Houston, TX)

    2000-01-01

    There is disclosed an article for use in cooling body temperature which comprises a garment having a coat and pant, with each having a body section adapted to receive a portion of the torso of the wearer and extensions from the body section to receive the wearer's limbs. The garment includes a system for circulating temperature controlling fluid from a suitable source through patches removably received in pockets in each of body section and extensions.

  9. Steam Generator Component Model in a Combined Cycle of Power Conversion Unit for Very High Temperature Gas-Cooled Reactor

    SciTech Connect (OSTI)

    Oh, Chang H; Han, James; Barner, Robert; Sherman, Steven R

    2007-06-01

    The Department of Energy and the Idaho National Laboratory are developing a Next Generation Nuclear Plant (NGNP), Very High Temperature Gas-Cooled Reactor (VHTR) to serve as a demonstration of state-of-the-art nuclear technology. The purpose of the demonstration is two fold 1) efficient low cost energy generation and 2) hydrogen production. Although a next generation plant could be developed as a single-purpose facility, early designs are expected to be dual-purpose. While hydrogen production and advanced energy cycles are still in its early stages of development, research towards coupling a high temperature reactor, electrical generation and hydrogen production is under way. A combined cycle is considered as one of the power conversion units to be coupled to the very high-temperature gas-cooled reactor (VHTR). The combined cycle configuration consists of a Brayton top cycle coupled to a Rankine bottoming cycle by means of a steam generator. A detailed sizing and pressure drop model of a steam generator is not available in the HYSYS processes code. Therefore a four region model was developed for implementation into HYSYS. The focus of this study was the validation of a HYSYS steam generator model of two phase flow correlations. The correlations calculated the size and heat exchange of the steam generator. To assess the model, those calculations were input into a RELAP5 model and its results were compared with HYSYS results. The comparison showed many differences in parameters such as the heat transfer coefficients and revealed the different methods used by the codes. Despite differences in approach, the overall results of heat transfer were in good agreement.

  10. Nonlocal control of electron temperature in short direct current glow discharge plasma

    SciTech Connect (OSTI)

    Demidov, V. I.; Kudryavtsev, A. A.; Stepanova, O. M.; Kurlyandskaya, I. P.

    2014-09-15

    To demonstrate controlling the electron temperature in nonlocal plasma, experiments have been performed on a short (without positive column) dc glow discharge with a cold cathode by applying different voltages to the conducting discharge wall. The experiments have been performed for low-pressure noble gas discharges. The applied voltage can modify trapping the energetic electrons emitted from the cathode sheath and arising from the atomic and molecular processes in the plasma within the device volume. This phenomenon results in the energetic electrons heating the slow plasma electrons, which consequently modifies the electron temperature. Furthermore, a numerical model of the discharge has demonstrated the electron temperature modification for the above case.

  11. Synchronous compartment temperature control and apparatus for refrigeration with reduced energy consumption

    DOE Patents [OSTI]

    Gomes, Alberto Regio; Keres, Stephen L.; Kuehl, Stephen J.; Litch, Andrew D.; Richmond, Peter J.; Wu, Guolian

    2015-09-22

    A refrigerator appliance configuration, and associated methods of operation, for an appliance with a controller, a condenser, at least one evaporator, a compressor, and two refrigeration compartments. The configuration may be equipped with a variable-speed or variable-capacity compressor, variable speed evaporator or compartment fans, a damper and/or a dual-temperature evaporator with a valve system to control flow of refrigerant through one or more pressure reduction devices. The controller, by operation of the compressor, fans, damper and/or valve system, depending on the appliance configuration, controls the cooling rate in one or both compartments to synchronize, alternating cycles of cooling the compartments to their set point temperatures.

  12. RHIC 12x150A current lead temperature controller: design and implementation

    SciTech Connect (OSTI)

    Mi, C.; Seberg, S.; Ganetis, Hamdi, K.; Louie, W.; Heppner, G.; Jamilkowski, J.; Bruno, D.; DiLieto, A.; Sirio, C.; Tuozzolo, J.; Sandberg, J.; Unger, K.

    2011-03-28

    There are 60 12 x 150A current leads distributed in six RHIC service buildings; each lead delivers power supply current from room temperature to cryogenic temperature in RHIC. Due to the humid environment, condensation occurs frequently and ice forms quickly during operation, especially during an extensive storage period. These conditions generate warnings and alarms to which personnel must respond and establish temporary solutions to keep the machine operating. In here, we designed a temperature control system to avoid such situations. This paper discusses its design, implementation, and some results. There are six service buildings in the RHIC complex; each building has two valve boxes that transfer room-temperature current cables from the power supplies into superconducting leads, and then transport them into the RHIC tunnel. In there, the transition between the room-temperature lead into superconducting lead is critical and essential; smooth running during the physics store is crucial for the machine's continuing operation. One of the problems that often occurred previously was the icing of these current leads that could result in a potential leakage current onto ground, thereby preventing a continuous supply of physics store. Fig. 1 illustrates a typical example on a power lead. Among the modifications of the design of the valve box, we list below the new requirements for designing the temperature controller to prevent icing occurring: (1) Remotely control, monitor, and record each current lead's temperature in real time. Prevent icing or overheating of a power lead. (2) Include a temperature alarm for the high/low level threshold. In this paper we discuss the design, implementation, upgrades to, and operation of this new system.

  13. Controlling particulates, temperature, and tritium in an inert glovebox for a weapons program

    SciTech Connect (OSTI)

    Purson, J.D.; Powers, D.; Walthers, C.; Navarro, C.; Newman, E.; Romero, J.; Jenkins, R.

    1996-07-01

    A glovebox is described in which several environmental parameters are controlled and monitored. Included in these are particulate, tritium, water vapor, oxygen and temperature. The paper details the design rationale and process and describes the glovebox, presently in use for neutron generator production.

  14. Apparatus and method for controlling the temperature of the core of a super-conducting transformer

    DOE Patents [OSTI]

    Golner, Thomas; Pleva, Edward; Mehta, Shirish

    2006-10-10

    An apparatus for controlling the temperature of a core of a transformer is provided that includes a core, a shield surrounding the core, a cast formed between the core and the shield, and tubing positioned on the shield. The cast directs heat from the core to the shield and cooling fluid is directed through the tubing to cool the shield.

  15. Thermostatically controlled portable electric space heater with automatic temperature setback for energy saving

    SciTech Connect (OSTI)

    Shao, S.

    1994-01-11

    An electrically-powered portable space heater of the type having one or more vertically extending fin-tube heating elements disposed within an elongated housing has a selectively adjustable temperature controller responsive to a signal from an upwardly extending thermistor externally pivotally mounted on the rear of the heater housing for movement from a storage position behind the housing to an upraised operative position, thermistor also being used to supply a room temperature signal to an ambient temperature display device on the heater housing. Furthermore, the heater includes a selectively actuatable energy saving feature which, when actuated, automatically reduces by 5 degrees F. after a period of one hour the temperature to which the heater has been pre-set by the operator. 17 figs.

  16. Adaptive Process Controls and Ultrasonics for High Temperature PEM MEA Manufacture

    SciTech Connect (OSTI)

    Walczyk, Daniel F.

    2015-08-26

    The purpose of this 5-year DOE-sponsored project was to address major process bottlenecks associated with fuel cell manufacturing. New technologies were developed to significantly reduce pressing cycle time for high temperature PEM membrane electrode assembly (MEA) through the use of novel, robust ultrasonic (U/S) bonding processes along with low temperature (<100C) PEM MEAs. In addition, greater manufacturing uniformity and performance was achieved through (a) an investigation into the causes of excessive variation in ultrasonically and thermally bonded MEAs using more diagnostics applied during the entire fabrication and cell build process, and (b) development of rapid, yet simple quality control measurement techniques for use by industry.

  17. Biophysical controls on carbon and water vapor fluxes across a grassland climatic gradient in the United States

    SciTech Connect (OSTI)

    Wagle, Pradeep; Xiao, Xiangming; Scott, Russell L.; Kolb, Thomas E.; Cook, David R.; Brunsell, Nathaniel; Baldocchi, Dennis D.; Basara, Jeffrey; Matamala, Roser; Zhou, Yuting; Bajgain, Rajen

    2015-12-01

    Understanding of the underlying causes of spatial variation in exchange of carbon and water vapor fluxes between grasslands and the atmosphere is crucial for accurate estimates of regional and global carbon and water budgets, and for predicting the impact of climate change on biosphereatmosphere feedbacks of grasslands. We used ground-based eddy flux and meteorological data, and the Moderate Resolution Imaging Spectroradiometer (MODIS) enhanced vegetation index (EVI) from 12 grasslands across the United States to examine the spatial variability in carbon and water vapor fluxes and to evaluate the biophysical controls on the spatial patterns of fluxes. Precipitation was strongly associated with spatial and temporal variability in carbon and water vapor fluxes and vegetation productivity. Grasslands with annual average precipitation <600 mm generally had neutral annual carbon balance or emitted small amount of carbon to the atmosphere. Despite strong coupling between gross primary production (GPP)and evapotranspiration (ET) across study sites, GPP showed larger spatial variation than ET, and EVI had a greater effect on GPP than on ET. Consequently, large spatial variation in ecosystem water use efficiency (EWUE = annual GPP/ET; varying from 0.67 0.55 to 2.52 0.52 g C mm?ET) was observed. Greater reduction in GPP than ET at high air temperature and vapor pressure deficit caused a reduction in EWUE in dry years, indicating a response which is opposite than what has been reported for forests. Our results show that spatial and temporal variations in ecosystem carbon uptake, ET, and water use efficiency of grasslands were strongly associated with canopy greenness and coverage, as indicated by EVI.

  18. Selected data for low-temperature (less than 90{sup 0}C) geothermal systems in the United States: reference data for US Geological Survey Circular 892

    SciTech Connect (OSTI)

    Reed, M.J.; Mariner, R.H.; Brook, C.A.; Sorey, M.L.

    1983-12-15

    Supporting data are presented for the 1982 low-temperature geothermal resource assessment of the United States. Data are presented for 2072 geothermal sites which are representative of 1168 low-temperature geothermal systems identified in 26 States. The low-temperature geothermal systems consist of 978 isolated hydrothermal-convection systems, 148 delineated-area hydrothermal-convection systems, and 42 delineated-area conduction-dominated systems. The basic data and estimates of reservoir conditions are presented for each geothermal system, and energy estimates are given for the accessible resource base, resource, and beneficial heat for each isolated system.

  19. RM12-2703 Advanced Rooftop Unit Control Retrofit Kit Field Demonstrati...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    ... Other advanced control features include demand controlled ventilation (DCV), enhanced economizing, and demand response. Some of the more sophisticated ARC retrofit systems can also ...

  20. Control system for high power laser drilling workover and completion unit

    DOE Patents [OSTI]

    Zediker, Mark S; Makki, Siamak; Faircloth, Brian O; DeWitt, Ronald A; Allen, Erik C; Underwood, Lance D

    2015-05-12

    A control and monitoring system controls and monitors a high power laser system for performing high power laser operations. The control and monitoring system is configured to perform high power laser operation on, and in, remote and difficult to access locations.

  1. Regulatory Networks Controlling Plant Cold Acclimation or Low Temperature Regulatory Networks Controlling Cold Acclimation in Arabidopsis (2011 JGI User Meeting)

    SciTech Connect (OSTI)

    Thomashow, Mike

    2011-03-23

    The U.S. Department of Energy Joint Genome Institute (JGI) invited scientists interested in the application of genomics to bioenergy and environmental issues, as well as all current and prospective users and collaborators, to attend the annual DOE JGI Genomics of Energy & Environment Meeting held March 22-24, 2011 in Walnut Creek, Calif. The emphasis of this meeting was on the genomics of renewable energy strategies, carbon cycling, environmental gene discovery, and engineering of fuel-producing organisms. The meeting features presentations by leading scientists advancing these topics. Mike Thomashow of Michigan State University gives a presentation on on "Low Temperature Regulatory Networks Controlling Cold Acclimation in Arabidopsis" at the 6th annual Genomics of Energy & Environment Meeting on March 23, 2011.

  2. Regulatory Networks Controlling Plant Cold Acclimation or Low Temperature Regulatory Networks Controlling Cold Acclimation in Arabidopsis (2011 JGI User Meeting)

    ScienceCinema (OSTI)

    Thomashow, Mike

    2011-06-03

    The U.S. Department of Energy Joint Genome Institute (JGI) invited scientists interested in the application of genomics to bioenergy and environmental issues, as well as all current and prospective users and collaborators, to attend the annual DOE JGI Genomics of Energy & Environment Meeting held March 22-24, 2011 in Walnut Creek, Calif. The emphasis of this meeting was on the genomics of renewable energy strategies, carbon cycling, environmental gene discovery, and engineering of fuel-producing organisms. The meeting features presentations by leading scientists advancing these topics. Mike Thomashow of Michigan State University gives a presentation on on "Low Temperature Regulatory Networks Controlling Cold Acclimation in Arabidopsis" at the 6th annual Genomics of Energy & Environment Meeting on March 23, 2011. «

  3. Numerical prediction of energy consumption in buildings with controlled interior temperature

    SciTech Connect (OSTI)

    Jarošová, P.; Št’astník, S.

    2015-03-10

    New European directives bring strong requirement to the energy consumption of building objects, supporting the renewable energy sources. Whereas in the case of family and similar houses this can lead up to absurd consequences, for building objects with controlled interior temperature the optimization of energy demand is really needed. The paper demonstrates the system approach to the modelling of thermal insulation and accumulation abilities of such objetcs, incorporating the significant influence of additional physical processes, as surface heat radiation and moisture-driven deterioration of insulation layers. An illustrative example shows the numerical prediction of energy consumption of a freezing plant in one Central European climatic year.

  4. Controlling a rabbet load and air/oil seal temperatures in a turbine

    DOE Patents [OSTI]

    Schmidt, Mark Christopher (Niskayuna, NY)

    2002-01-01

    During a standard fired shutdown of a turbine, a loaded rabbet joint between the fourth stage wheel and the aft shaft of the machine can become unloaded causing a gap to occur due to a thermal mismatch at the rabbet joint with the bearing blower turned on. An open or unloaded rabbet could cause the parts to move relative to each other and therefore cause the rotor to lose balance. If the bearing blower is turned off during a shutdown, the forward air/oil seal temperature may exceed maximum design practice criterion due to "soak-back." An air/oil seal temperature above the established maximum design limits could cause a bearing fire to occur, with catastrophic consequences to the machine. By controlling the bearing blower according to an optimized blower profile, the rabbet load can be maintained, and the air/oil seal temperature can be maintained below the established limits. A blower profile is determined according to a thermodynamic model of the system.

  5. System and method for monitoring and controlling stator winding temperature in a de-energized AC motor

    DOE Patents [OSTI]

    Lu, Bin (Kenosha, WI); Luebke, Charles John (Sussex, WI); Habetler, Thomas G. (Snellville, GA); Zhang, Pinjia (Atlanta, GA); Becker, Scott K. (Oak Creek, WI)

    2011-12-27

    A system and method for measuring and controlling stator winding temperature in an AC motor while idling is disclosed. The system includes a circuit having an input connectable to an AC source and an output connectable to an input terminal of a multi-phase AC motor. The circuit further includes a plurality of switching devices to control current flow and terminal voltages in the multi-phase AC motor and a controller connected to the circuit. The controller is configured to activate the plurality of switching devices to create a DC signal in an output of the motor control device corresponding to an input to the multi-phase AC motor, determine or estimate a stator winding resistance of the multi-phase AC motor based on the DC signal, and estimate a stator temperature from the stator winding resistance. Temperature can then be controlled and regulated by DC injection into the stator windings.

  6. Multiple sample characterization of coals and other substances by controlled-atmosphere programmed temperature oxidation

    DOE Patents [OSTI]

    LaCount, Robert B.

    1993-01-01

    A furnace with two hot zones holds multiple analysis tubes. Each tube has a separable sample-packing section positioned in the first hot zone and a catalyst-packing section positioned in the second hot zone. A mass flow controller is connected to an inlet of each sample tube, and gas is supplied to the mass flow controller. Oxygen is supplied through a mass flow controller to each tube to either or both of an inlet of the first tube and an intermediate portion between the tube sections to intermingle with and oxidize the entrained gases evolved from the sample. Oxidation of those gases is completed in the catalyst in each second tube section. A thermocouple within a sample reduces furnace temperature when an exothermic condition is sensed within the sample. Oxidized gases flow from outlets of the tubes to individual gas cells. The cells are sequentially aligned with an infrared detector, which senses the composition and quantities of the gas components. Each elongated cell is tapered inward toward the center from cell windows at the ends. Volume is reduced from a conventional cell, while permitting maximum interaction of gas with the light beam. Reduced volume and angulation of the cell inlets provide rapid purgings of the cell, providing shorter cycles between detections. For coal and other high molecular weight samples, from 50% to 100% oxygen is introduced to the tubes.

  7. Cyclone Boiler Field Testing of Advanced Layered NOx Control Technology in Sioux Unit 1

    SciTech Connect (OSTI)

    Marc A. Cremer; Bradley R. Adams

    2006-06-30

    A four week testing program was completed during this project to assess the ability of the combination of deep staging, Rich Reagent Injection (RRI), and Selective Non-Catalytic Reduction (SNCR) to reduce NOx emissions below 0.15 lb/MBtu in a cyclone fired boiler. The host site for the tests was AmerenUE's Sioux Unit 1, a 500 MW cyclone fired boiler located near St. Louis, MO. Reaction Engineering International (REI) led the project team including AmerenUE, FuelTech Inc., and the Electric Power Research Institute (EPRI). This layered approach to NOx reduction is termed the Advanced Layered Technology Approach (ALTA). Installed RRI and SNCR port locations were guided by computational fluid dynamics (CFD) based modeling conducted by REI. During the parametric testing, NOx emissions of 0.12 lb/MBtu were achieved consistently from overfire air (OFA)-only baseline NOx emissions of 0.25 lb/MBtu or less, when firing the typical 80/20 fuel blend of Powder River Basin (PRB) and Illinois No.6 coals. From OFA-only baseline levels of 0.20 lb/MBtu, NOx emissions of 0.12 lb/MBtu were also achieved, but at significantly reduced urea flow rates. Under the deeply staged conditions that were tested, RRI performance was observed to degrade as higher blends of Illinois No.6 were used. NOx emissions achieved with ALTA while firing a 60/40 blend were approximately 0.15 lb/MBtu. NOx emissions while firing 100% Illinois No.6 were approximately 0.165 lb/MBtu. Based on the performance results of these tests, economics analyses of the application of ALTA to a nominal 500 MW cyclone unit show that the levelized cost to achieve 0.15 lb/MBtu is well below 75% of the cost of a state of the art SCR.

  8. Instrument for stable high temperature Seebeck coefficient and resistivity measurements under controlled oxygen partial pressure

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Ihlefeld, Jon F.; Brown-Shaklee, Harlan James; Sharma, Peter Anand

    2015-04-28

    The transport properties of ceramic materials strongly depend on oxygen activity, which is tuned by changing the partial oxygen pressure (pO2) prior to and during measurement. Within, we describe an instrument for highly stable measurements of Seebeck coefficient and electrical resistivity at temperatures up to 1300 K with controlled oxygen partial pressure. An all platinum construction is used to avoid potential materials instabilities that can cause measurement drift. Two independent heaters are employed to establish a small temperature gradient for Seebeck measurements, while keeping the average temperature constant and avoiding errors associated with pO2-induced drifts in thermocouple readings. Oxygen equilibriummore » is monitored using both an O2 sensor and the transient behavior of the resistance as a proxy. A pO2 range of 10-25–100 atm can be established with appropriate gas mixtures. Seebeck measurements were calibrated against a high purity platinum wire, Pt/Pt–Rh thermocouple wire, and a Bi2Te3 Seebeck coefficient Standard Reference Material. To demonstrate the utility of this instrument for oxide materials we present measurements as a function of pO2 on a 1 % Nb-doped SrTiO3 single crystal, and show systematic changes in properties consistent with oxygen vacancy defect chemistry. Thus, an approximately 11% increase in power factor over a pO2 range of 10-19–10-8 atm at 973 K for the donor-doped single crystals is observed.« less

  9. Material Control and Accounting Design Considerations for High-Temperature Gas Reactors

    SciTech Connect (OSTI)

    Trond Bjornard; John Hockert

    2011-08-01

    The subject of this report is domestic safeguards and security by design (2SBD) for high-temperature gas reactors, focusing on material control and accountability (MC&A). The motivation for the report is to provide 2SBD support to the Next Generation Nuclear Plant (NGNP) project, which was launched by Congress in 2005. This introductory section will provide some background on the NGNP project and an overview of the 2SBD concept. The remaining chapters focus specifically on design aspects of the candidate high-temperature gas reactors (HTGRs) relevant to MC&A, Nuclear Regulatory Commission (NRC) requirements, and proposed MC&A approaches for the two major HTGR reactor types: pebble bed and prismatic. Of the prismatic type, two candidates are under consideration: (1) GA's GT-MHR (Gas Turbine-Modular Helium Reactor), and (2) the Modular High-Temperature Reactor (M-HTR), a derivative of Areva's Antares reactor. The future of the pebble-bed modular reactor (PBMR) for NGNP is uncertain, as the PBMR consortium partners (Westinghouse, PBMR [Pty] and The Shaw Group) were unable to agree on the path forward for NGNP during 2010. However, during the technology assessment of the conceptual design phase (Phase 1) of the NGNP project, AREVA provided design information and technology assessment of their pebble bed fueled plant design called the HTR-Module concept. AREVA does not intend to pursue this design for NGNP, preferring instead a modular reactor based on the prismatic Antares concept. Since MC&A relevant design information is available for both pebble concepts, the pebble-bed HTGRs considered in this report are: (1) Westinghouse PBMR; and (2) AREVA HTR-Module. The DOE Office of Nuclear Energy (DOE-NE) sponsors the Fuel Cycle Research and Development program (FCR&D), which contains an element specifically focused on the domestic (or state) aspects of SBD. This Material Protection, Control and Accountancy Technology (MPACT) program supports the present work summarized in this report, namely the development of guidance to support the consideration of MC&A in the design of both pebble-bed and prismatic-fueled HTGRs. The objective is to identify and incorporate design features into the facility design that will cost effectively aid in making MC&A more effective and efficient, with minimum impact on operations. The theft of nuclear material is addressed through both MC&A and physical protection, while the threat of sabotage is addressed principally through physical protection.

  10. Room temperature alcohol sensing by oxygen vacancy controlled TiO{sub 2} nanotube array

    SciTech Connect (OSTI)

    Hazra, A.; Dutta, K.; Bhowmik, B.; Bhattacharyya, P.; Chattopadhyay, P. P.

    2014-08-25

    Oxygen vacancy (OV) controlled TiO{sub 2} nanotubes, having diameters of 5070?nm and lengths of 200250?nm, were synthesized by electrochemical anodization in the mixed electrolyte comprising NH{sub 4}F and ethylene glycol with selective H{sub 2}O content. The structural evolution of TiO{sub 2} nanoforms has been studied by field emission scanning electron microscopy. Variation in the formation of OVs with the variation of the structure of TiO{sub 2} nanoforms has been evaluated by photoluminescence and X-ray photoelectron spectroscopy. The sensor characteristics were correlated to the variation of the amount of induced OVs in the nanotubes. The efficient room temperature sensing achieved by the control of OVs of TiO{sub 2} nanotube array has paved the way for developing fast responding alcohol sensor with corresponding response magnitude of 60.2%, 45.3%, and 36.5% towards methanol, ethanol, and 2-propanol, respectively.

  11. Gas hydrates on the Atlantic Continental Margin of the United States - controls on concentration

    SciTech Connect (OSTI)

    Dillon, W.P.; Fehlhaber, K.; Coleman, D.F. ); Lee, M.W. )

    1993-01-01

    Large volumes of gas hydrates exist within ocean-floor deposits at water depths exceeding about 300 to 500 m. They cement a surface layer of sediments as much as about 1,000 m thick, limited at its base by increasing temperature. Gas hydrates are identified by drilled samples and by their characteristic responses in seismic reflection profiles. These seismic responses include, at the base of the hydrate-cemented surface layer, a marked velocity decrease and a sea-floor-paralleling reflection (known as the bottom-simulating reflection, or BSR), and, within the hydrate-cemented layer, a reduction in amplitude of seismic reflections (known as blanking), which is apparently caused by cementation of strata. By using seismic-reflection data we have mapped the volume of hydrate and thickness of the hydrate-cemented layer off the US East Coast. The sources of gas at these concentrations are probably bacterial generation of methane at the locations of rapid deposition, and possibly the migration of deep, thermogenic gap up faults near diapirs. The thickness of the gas-hydrate layer decreases markedly at landslide scars, possibly due to break-down of hydrate resulting from pressure reduction caused by removal of sediment by the slide. Gas traps appear to exist where a seal is formed by the gas-hydrate-cemented layer. Such traps are observed (1) where the sea floor forms a dome, and therefore the bottom-paralleling, hydrate-cemented layer also forms a dome; (2) above diapirs, where the greater thermal conductivity of salt creates a warm spot and salt ions act as antifreeze, both effects resulting in a local shallowing of the base of the hydrate; and (3) at locations where strata dip relative to the sea floor, and the updip regions of porous strata are sealed by the gas-hydrate-cemented layer to form a trap. In such situations the gas in the hydrate-sealed trap, as well as the gas that forms the hydrate, may become a resource. 32 refs., 19 figs.

  12. RM12-2703 Advanced Rooftop Unit Control Retrofit Kit Field Demonstration: Hawaii and Guam Energy Improvement Technology Demonstration Project

    SciTech Connect (OSTI)

    Doebber, I.; Dean, J.; Dominick, J.; Holland, G.

    2014-03-01

    As part of its overall strategy to meet its energy goals, the Naval Facilities Engineering Command (NAVFAC) partnered with U.S. Department of Energy's (DOE) National Renewable Energy Laboratory (NREL) to rapidly demonstrate and deploy cost-effective renewable energy and energy efficiency technologies. This was one of several demonstrations of new and underutilized commercial energy efficiency technologies. The consistent year-round demand for air conditioning and dehumidification in Hawaii provides an advantageous demonstration location for advanced rooftop control (ARC) retrofit kits to packaged rooftop units (RTUs). This report summarizes the field demonstration of ARCs installed on nine RTUs serving a 70,000-ft2 exchange store (large retail) and two RTUs, each serving small office buildings located on Joint Base Pearl Harbor-Hickam (JBPHH).

  13. Emissions of Transport Refrigeration Units with CARB Diesel, Gas-to-Liquid Diesel, and Emissions Control Devices

    SciTech Connect (OSTI)

    Barnitt, R. A.; Chernich, D.; Burnitzki, M.; Oshinuga, A.; Miyasato, M.; Lucht, E.; van der Merwe, D.; Schaberg, P.

    2010-05-01

    A novel in situ method was used to measure emissions and fuel consumption of transport refrigeration units (TRUs). The test matrix included two fuels, two exhaust configurations, and two TRU engine operating speeds. Test fuels were California ultra low sulfur diesel and gas-to-liquid (GTL) diesel. Exhaust configurations were a stock muffler and a Thermo King pDPF diesel particulate filter. The TRU engine operating speeds were high and low, controlled by the TRU user interface. Results indicate that GTL diesel fuel reduces all regulated emissions at high and low engine speeds. Application of a Thermo King pDPF reduced regulated emissions, sometimes almost entirely. The application of both GTL diesel and a Thermo King pDPF reduced regulated emissions at high engine speed, but showed an increase in oxides of nitrogen at low engine speed.

  14. Bypass valve and coolant flow controls for optimum temperatures in waste heat recovery systems

    DOE Patents [OSTI]

    Meisner, Gregory P

    2013-10-08

    Implementing an optimized waste heat recovery system includes calculating a temperature and a rate of change in temperature of a heat exchanger of a waste heat recovery system, and predicting a temperature and a rate of change in temperature of a material flowing through a channel of the waste heat recovery system. Upon determining the rate of change in the temperature of the material is predicted to be higher than the rate of change in the temperature of the heat exchanger, the optimized waste heat recovery system calculates a valve position and timing for the channel that is configurable for achieving a rate of material flow that is determined to produce and maintain a defined threshold temperature of the heat exchanger, and actuates the valve according to the calculated valve position and calculated timing.

  15. Pebble Fuel Handling and Reactivity Control for Salt-Cooled High Temperature Reactors

    SciTech Connect (OSTI)

    Peterson, Per; Greenspan, Ehud

    2015-02-09

    This report documents the work completed on the X-PREX facility under NEUP Project 11- 3172. This project seeks to demonstrate the viability of pebble fuel handling and reactivity control for fluoride salt-cooled high-temperature reactors (FHRs). The research results also improve the understanding of pebble motion in helium-cooled reactors, as well as the general, fundamental understanding of low-velocity granular flows. Successful use of pebble fuels in with salt coolants would bring major benefits for high-temperature reactor technology. Pebble fuels enable on-line refueling and operation with low excess reactivity, and thus simpler reactivity control and improved fuel utilization. If fixed fuel designs are used, the power density of salt- cooled reactors is limited to 10 MW/m3 to obtain adequate duration between refueling, but pebble fuels allow power densities in the range of 20 to 30 MW/m3. This can be compared to the typical modular helium reactor power density of 5 MW/m3. Pebble fuels also permit radial zoning in annular cores and use of thorium or graphite pebble blankets to reduce neutron fluences to outer radial reflectors and increase total power production. Combined with high power conversion efficiency, compact low-pressure primary and containment systems, and unique safety characteristics including very large thermal margins (>500C) to fuel damage during transients and accidents, salt-cooled pebble fuel cores offer the potential to meet the major goals of the Advanced Reactor Concepts Development program to provide electricity at lower cost than light water reactors with improved safety and system performance.This report presents the facility description, experimental results, and supporting simulation methods of the new X-Ray Pebble Recirculation Experiment (X-PREX), which is now operational and being used to collect data on the behavior of slow dense granular flows relevant to pebble bed reactor core designs. The X-PREX facility uses novel digital x-ray tomography methods to track both the translational and rotational motion of spherical pebbles, which provides unique experimental results that can be used to validate discrete element method (DEM) simulations of pebble motion. The validation effort supported by the X-PREX facility provides a means to build confidence in analysis of pebble bed configuration and residence time distributions that impact the neutronics, thermal hydraulics, and safety analysis of pebble bed reactor cores. Experimental and DEM simulation results are reported for silo drainage, a classical problem in the granular flow literature, at several hopper angles. These studies include conventional converging and novel diverging geometries that provide additional flexibility in the design of pebble bed reactor cores. Excellent agreement is found between the X-PREX experimental and DEM simulation results. This report also includes results for additional studies relevant to the design and analysis of pebble bed reactor cores including the study of forces on shut down blades inserted directly into a packed bed and pebble flow in a cylindrical hopper that is representative of a small test reactor.

  16. Driving Down HB-LED Costs: Implementation of Process Simulation Tools and Temperature Control Methods of High Yield MOCVD Growth

    SciTech Connect (OSTI)

    William Quinn

    2012-04-30

    The overall objective of this multi-faceted program is to develop epitaxial growth systems that meet a goal of 75% (4X) cost reduction in the epitaxy phase of HB-LED manufacture. A 75% reduction in yielded epitaxy cost is necessary in order to achieve the cost goals for widespread penetration of HB-LED’s into back-lighting units (BLU) for LCD panels and ultimately for solid-state lighting (SSL). To do this, the program will address significant improvements in overall equipment Cost of Ownership, or CoO. CoO is a model that includes all costs associated with the epitaxy portion of production. These aspects include cost of yield, capital cost, operational costs, and maintenance costs. We divide the program into three phases where later phases will incorporate the gains of prior phases. Phase one activities are enabling technologies. In collaboration with Sandia National Laboratories we develop a Fluent-compatible chemistry predictive model and a set of mid-infrared and near-ultraviolet pyrometer monitoring tools. Where previously the modeling of the reactor dynamics were studied within FLUENT alone, here, FLUENT and Chemkin are integrated into a comprehensive model of fluid dynamics and the most advanced transport equations developed for Chemkin. Specifically, the Chemkin model offered the key reaction terms for gas-phase nucleation, a key consideration in the optimization of the MOCVD process. This new predictive model is used to design new MOCVD reactors with optimized growth conditions and the newly developed pyrometers are used monitor and control the MOCVD process temperature to within 0.5°C run-to-run and within each wafer. This portion of the grant is in collaboration with partners at Sandia National Laboratories. Phase two activities are continuous improvement projects which extend the current reactor platform along the lines of improved operational efficiency, improved systems control for throughput, and carrier modifications for increased yield. Programmatically, improvements made in Phase I are applied to developments of Phase II when applicable. Phase three is the culmination of the individual tasks from both phases one and two applied to proposed production platforms. We selectively combine previously demonstrated tasks and other options to develop a high-volume production-worthy MOCVD system demonstrating >3x throughput, 1.3x capital efficiency, and 0.7x cost of ownership. In a parallel demonstration we validate the concept of an improved, larger deposition system which utilizes the predictive modeling of chemistry-based flow analysis and extensions of the improvements demonstrated on the current platforms. This validation includes the build and testing of a prototype version of the hardware and demonstration of 69% reduction in the cost of ownership. Also, in this phase we present a stand-alone project to develop a high-temperature system which improves source efficiency by 30% while concurrently increasing growth rate by 1.3x. The material quality is held to the same material quality specifications of our existing baseline processes. The merits of other line item tasks in phase three are discussed for inclusion on next-generation platforms.

  17. Controlled temperature expansion in oxygen production by molten alkali metal salts

    DOE Patents [OSTI]

    Erickson, Donald C.

    1985-06-04

    A continuous process is set forth for the production of oxygen from an oxygen containing gas stream, such as air, by contacting a feed gas stream with a molten solution of an oxygen acceptor to oxidize the acceptor and cyclically regenerating the oxidized acceptor by releasing oxygen from the acceptor wherein the oxygen-depleted gas stream from the contact zone is treated sequentially to temperature reduction by heat exchange against the feed stream so as to condense out entrained oxygen acceptor for recycle to the process, combustion of the gas stream with fuel to elevate its temperature and expansion of the combusted high temperature gas stream in a turbine to recover power.

  18. Evaluating temperature and fuel stratification for heat-release rate control in a reactivity-controlled compression-ignition engine using optical diagnostics and chemical kinetics modeling

    SciTech Connect (OSTI)

    Musculus, Mark P. B.; Kokjohn, Sage L.; Reitz, Rolf D.

    2015-04-23

    We investigated the combustion process in a dual-fuel, reactivity-controlled compression-ignition (RCCI) engine using a combination of optical diagnostics and chemical kinetics modeling to explain the role of equivalence ratio, temperature, and fuel reactivity stratification for heat-release rate control. An optically accessible engine is operated in the RCCI combustion mode using gasoline primary reference fuels (PRF). A well-mixed charge of iso-octane (PRF = 100) is created by injecting fuel into the engine cylinder during the intake stroke using a gasoline-type direct injector. Later in the cycle, n-heptane (PRF = 0) is delivered through a centrally mounted diesel-type common-rail injector. This injection strategy generates stratification in equivalence ratio, fuel blend, and temperature. The first part of this study uses a high-speed camera to image the injection events and record high-temperature combustion chemiluminescence. Moreover, the chemiluminescence imaging showed that, at the operating condition studied in the present work, mixtures in the squish region ignite first, and the reaction zone proceeds inward toward the center of the combustion chamber. The second part of this study investigates the charge preparation of the RCCI strategy using planar laser-induced fluorescence (PLIF) of a fuel tracer under non-reacting conditions to quantify fuel concentration distributions prior to ignition. The fuel-tracer PLIF data show that the combustion event proceeds down gradients in the n-heptane distribution. The third part of the study uses chemical kinetics modeling over a range of mixtures spanning the distributions observed from the fuel-tracer fluorescence imaging to isolate the roles of temperature, equivalence ratio, and PRF number stratification. The simulations predict that PRF number stratification is the dominant factor controlling the ignition location and growth rate of the reaction zone. Equivalence ratio has a smaller, but still significant, influence. Lastly, temperature stratification had a negligible influence due to the NTC behavior of the PRF mixtures.

  19. Control system for fluid heated steam generator

    DOE Patents [OSTI]

    Boland, James F. (Bonneville County, ID); Koenig, John F. (Idaho Falls, ID)

    1985-01-01

    A control system for controlling the location of the nucleate-boiling region in a fluid heated steam generator comprises means for measuring the temperature gradient (change in temperature per unit length) of the heating fluid along the steam generator; means for determining a control variable in accordance with a predetermined function of temperature gradients and for generating a control signal in response thereto; and means for adjusting the feedwater flow rate in accordance with the control signal.

  20. Control system for fluid heated steam generator

    DOE Patents [OSTI]

    Boland, J.F.; Koenig, J.F.

    1984-05-29

    A control system for controlling the location of the nucleate-boiling region in a fluid heated steam generator comprises means for measuring the temperature gradient (change in temperature per unit length) of the heating fluid along the steam generator; means for determining a control variable in accordance with a predetermined function of temperature gradients and for generating a control signal in response thereto; and means for adjusting the feedwater flow rate in accordance with the control signal.

  1. Controlled temperature expansion in oxygen production by molten alkali metal salts

    DOE Patents [OSTI]

    Erickson, D.C.

    1985-06-04

    A continuous process is set forth for the production of oxygen from an oxygen containing gas stream, such as air, by contacting a feed gas stream with a molten solution of an oxygen acceptor to oxidize the acceptor and cyclically regenerating the oxidized acceptor by releasing oxygen from the acceptor wherein the oxygen-depleted gas stream from the contact zone is treated sequentially to temperature reduction by heat exchange against the feed stream so as to condense out entrained oxygen acceptor for recycle to the process, combustion of the gas stream with fuel to elevate its temperature and expansion of the combusted high temperature gas stream in a turbine to recover power. 1 fig.

  2. Hydrodynamic Effects on Modeling and Control of a High Temperature Active Magnetic Bearing Pump with a Canned Rotor

    SciTech Connect (OSTI)

    Melin, Alexander M; Kisner, Roger A; Fugate, David L; Holcomb, David Eugene

    2015-01-01

    Embedding instrumentation and control Embedding instrumentation and control (I\\&C) at the component level in nuclear power plants can improve component performance, lifetime, and resilience by optimizing operation, reducing the constraints on physical design, and providing on-board prognostics and diagnostics. However, the extreme environments that many nuclear power plant components operate in makes embedding instrumentation and control at the component level difficult. Successfully utilizing embedded I\\&C requires developing a deep understanding of the system's dynamics and using that knowledge to overcome material and physical limitations imposed by the environment. In this paper, we will develop a coupled dynamic model of a high temperature (700 $^\\circ$C) canned rotor pump that incorporates rotordynamics, hydrodynamics, and active magnetic bearing dynamics. Then we will compare two control design methods, one that uses a simplified decoupled model of the system and another that utilizes the full coupled system model. It will be seen that utilizing all the available knowledge of the system dynamics in the controller design yield an order of magnitude improvement in the magnitude of the magnetic bearing response to disturbances at the same level of control effort, a large reduction in the settling time of the system, and a smoother control action.

  3. MODELING COMPETITIVE ADSORPTION IN UREA-SCR CATALYSTS FOR EFFECTIVE LOW TEMPERATURE NOX CONTROL

    SciTech Connect (OSTI)

    Devarakonda, Maruthi N.; Tonkyn, Russell G.; Tran, Diana N.; Lee, Jong H.; Herling, Darrell R.

    2010-09-17

    Although the SCR technology exhibits higher NOx reduction efficiency over a wider range of temperatures among the lean NOx reduction technologies, further improvement in low-temperature performance is required to meet the future emission standards and to lower the system cost. In order to improve the catalyst technologies and optimize the system performance, it is critical to understand the reaction mechanisms and catalyst behaviors with respect to operating conditions. For example, it is well known that the ammonia coverage on catalyst surface is critical for NOx reduction efficiency. However, the level of ammonia storage is influenced by competitive adsorption by other species, such as H2O and NO2. Moreover, hydrocarbon species that slip through the upstream DOC during the cold-start period can also inhibit the SCR performance, especially at low temperatures. Therefore, a one-dimensional detailed kinetic model that can account for the effects of such competitive adsorption has been developed based on steady state surface isotherm tests on a commercial Fe-zeolite catalyst. The model is developed as a C language S-function and implemented in Matlab/Simulink environment. Rate kinetics of adsorption and desorption of each of the adsorbents are determined from individual adsorption tests and validated for a set of test conditions that had all the adsorbents in the feed gas.

  4. Evaluating temperature and fuel stratification for heat-release rate control in a reactivity-controlled compression-ignition engine using optical diagnostics and chemical kinetics modeling

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Musculus, Mark P. B.; Kokjohn, Sage L.; Reitz, Rolf D.

    2015-04-23

    We investigated the combustion process in a dual-fuel, reactivity-controlled compression-ignition (RCCI) engine using a combination of optical diagnostics and chemical kinetics modeling to explain the role of equivalence ratio, temperature, and fuel reactivity stratification for heat-release rate control. An optically accessible engine is operated in the RCCI combustion mode using gasoline primary reference fuels (PRF). A well-mixed charge of iso-octane (PRF = 100) is created by injecting fuel into the engine cylinder during the intake stroke using a gasoline-type direct injector. Later in the cycle, n-heptane (PRF = 0) is delivered through a centrally mounted diesel-type common-rail injector. This injectionmore » strategy generates stratification in equivalence ratio, fuel blend, and temperature. The first part of this study uses a high-speed camera to image the injection events and record high-temperature combustion chemiluminescence. Moreover, the chemiluminescence imaging showed that, at the operating condition studied in the present work, mixtures in the squish region ignite first, and the reaction zone proceeds inward toward the center of the combustion chamber. The second part of this study investigates the charge preparation of the RCCI strategy using planar laser-induced fluorescence (PLIF) of a fuel tracer under non-reacting conditions to quantify fuel concentration distributions prior to ignition. The fuel-tracer PLIF data show that the combustion event proceeds down gradients in the n-heptane distribution. The third part of the study uses chemical kinetics modeling over a range of mixtures spanning the distributions observed from the fuel-tracer fluorescence imaging to isolate the roles of temperature, equivalence ratio, and PRF number stratification. The simulations predict that PRF number stratification is the dominant factor controlling the ignition location and growth rate of the reaction zone. Equivalence ratio has a smaller, but still significant, influence. Lastly, temperature stratification had a negligible influence due to the NTC behavior of the PRF mixtures.« less

  5. Thermal input control and enhancement for laser based residual stress measurements using liquid temperature indicating coatings

    DOE Patents [OSTI]

    Pechersky, M.J.

    1999-07-06

    An improved method for measuring residual stress in a material is disclosed comprising the steps of applying a spot of temperature indicating coating to the surface to be studied, establishing a speckle pattern surrounds the spot of coating with a first laser then heating the spot of coating with a far infrared laser until the surface plastically deforms. Comparing the speckle patterns before and after deformation by subtracting one pattern from the other will produce a fringe pattern that serves as a visual and quantitative indication of the degree to which the plasticized surface responded to the stress during heating and enables calculation of the stress. 3 figs.

  6. Thermal input control and enhancement for laser based residual stress measurements using liquid temperature indicating coatings

    DOE Patents [OSTI]

    Pechersky, Martin J. (Aiken, SC)

    1999-01-01

    An improved method for measuring residual stress in a material comprising the steps of applying a spot of temperature indicating coating to the surface to be studied, establishing a speckle pattern surrounds the spot of coating with a first laser then heating the spot of coating with a far infrared laser until the surface plastically deforms. Comparing the speckle patterns before and after deformation by subtracting one pattern from the other will produce a fringe pattern that serves as a visual and quantitative indication of the degree to which the plasticized surface responded to the stress during heating and enables calculation of the stress.

  7. Precision control of high temperature furnaces using an auxiliary power supply and charged particle current flow

    DOE Patents [OSTI]

    Pollock, G.G.

    1997-01-28

    Two power supplies are combined to control a furnace. A main power supply heats the furnace in the traditional manner, while the power from the auxiliary supply is introduced as a current flow through charged particles existing due to ionized gas or thermionic emission. The main power supply provides the bulk heating power and the auxiliary supply provides a precise and fast power source such that the precision of the total power delivered to the furnace is improved. 5 figs.

  8. Precision control of high temperature furnaces using an auxiliary power supply and charged practice current flow

    DOE Patents [OSTI]

    Pollock, George G. (San Ramon, CA)

    1997-01-01

    Two power supplies are combined to control a furnace. A main power supply heats the furnace in the traditional manner, while the power from the auxiliary supply is introduced as a current flow through charged particles existing due to ionized gas or thermionic emission. The main power supply provides the bulk heating power and the auxiliary supply provides a precise and fast power source such that the precision of the total power delivered to the furnace is improved.

  9. High-pressure cell for neutron diffraction with in situ pressure control at cryogenic temperatures

    SciTech Connect (OSTI)

    Jacobsen, Matthew K.; Ridley, Christopher J.; Bocian, Artur; Kamenev, Konstantin V.; Kirichek, Oleg; Manuel, Pascal; Khalyavin, Dmitry; Azuma, Masaki; Attfield, J. Paul

    2014-04-15

    Pressure generation at cryogenic temperatures presents a problem for a wide array of experimental techniques, particularly neutron studies due to the volume of sample required. We present a novel, compact pressure cell with a large sample volume in which load is generated by a bellow. Using a supply of helium gas up to a pressure of 350 bar, a load of up to 78 kN is generated with leak-free operation. In addition, special fiber ports added to the cryogenic center stick allow for in situ pressure determination using the ruby pressure standard. Mechanical stability was assessed using finite element analysis and the dimensions of the cell have been optimized for use with standard cryogenic equipment. Load testing and on-line experiments using NaCl and BiNiO{sub 3} have been done at the WISH instrument of the ISIS pulsed neutron source to verify performance.

  10. Transportation Refrigeration Unit (TRU) Retrofit with HUSS Active Diesel

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Particulate Filters | Department of Energy Transportation Refrigeration Unit (TRU) Retrofit with HUSS Active Diesel Particulate Filters Transportation Refrigeration Unit (TRU) Retrofit with HUSS Active Diesel Particulate Filters This presentation discusses the TRU temperature profile. PDF icon deer08_bruenke.pdf More Documents & Publications Verifying TRU Passive DPF Cold Ambient Performance Active Diesel Emission Control Technology for Transport Refrigeration Units Engine-External

  11. Clarification of Institutional Controls at the Rocky Flats Site Central Operable Unit and Implementation of the Soil Disturbance Review Plan - 13053

    SciTech Connect (OSTI)

    DiSalvo, Rick; Surovchak, Scott; Spreng, Carl; Moritz, Vera

    2013-07-01

    Cleanup and closure of DOE's Rocky Flats Site in Colorado, which was placed on the CERCLA National Priority List in 1989, was accomplished under CERCLA, RCRA, and the Colorado Hazardous Waste Act (CHWA). The physical cleanup work was completed in late 2005 and all buildings and other structures that composed the Rocky Flats industrial complex were removed from the surface, but remnants remain in the subsurface. Other remaining features include two landfills closed in place with covers, four groundwater treatment systems, and surface water and groundwater monitoring systems. Under the 2006 Corrective Action Decision/Record of Decision for Rocky Flats Plant (US DOE) Peripheral Operable Unit and the Central Operable Unit (CAD/ROD), the response actions selected for the Central Operable Unit (OU) are institutional controls (ICs), physical controls, and continued monitoring and maintenance. The objectives of these ICs were to prevent unacceptable exposure to remaining subsurface contamination and to prevent contaminants from mobilizing to surface water and to prevent interfering with the proper functioning of the engineered components of the remedy. An amendment in 2011 of the 2006 CAD/ROD clarified the ICs to prevent misinterpretation that would prohibit work to manage and maintain the Central OU property. The 2011 amendment incorporated a protocol for a Soil Disturbance Review Plan for work subject to ICs that requires approval from the State and public notification by DOE prior to conducting approved soil-disturbing work. (authors)

  12. Impact of Solar Control PVB Glass on Vehicle Interior Temperatures, Air-Conditioning Capacity, Fuel Consumption, and Vehicle Range

    SciTech Connect (OSTI)

    Rugh, J.; Chaney, L.; Venson, T.; Ramroth, L.; Rose, M.

    2013-04-01

    The objective of the study was to assess the impact of Saflex1 S-series Solar Control PVB (polyvinyl butyral) configurations on conventional vehicle fuel economy and electric vehicle (EV) range. The approach included outdoor vehicle thermal soak testing, RadTherm cool-down analysis, and vehicle simulations. Thermal soak tests were conducted at the National Renewable Energy Laboratory's Vehicle Testing and Integration Facility in Golden, Colorado. The test results quantified interior temperature reductions and were used to generate initial conditions for the RadTherm cool-down analysis. The RadTherm model determined the potential reduction in air-conditioning (A/C) capacity, which was used to calculate the A/C load for the vehicle simulations. The vehicle simulation tool identified the potential reduction in fuel consumption or improvement in EV range between a baseline and modified configurations for the city and highway drive cycles. The thermal analysis determined a potential 4.0% reduction in A/C power for the Saflex Solar PVB solar control configuration. The reduction in A/C power improved the vehicle range of EVs and fuel economy of conventional vehicles and plug-in hybrid electric vehicles.

  13. Temperature control transport system

    DOE Patents [OSTI]

    Schabron, John F; Sorini-Wong, Susan S

    2014-12-09

    Embodiments of the inventive technology may involve the use of layered, insulated PCM assemblage that itself comprises: modular insulating foam material 8 that, upon establishment as part of the assemblage, defines inner foam material sides 9 and outer foam material sides 10; thin reflective material 11 established against (whether directly in contact with or not) at least either the inner foam material sides or the outer foam materials sides, and modular, enclosed PCM sections 12 established between the modular insulating foam material and the interior center.

  14. Low Temperature Emission Control

    Broader source: Energy.gov [DOE]

    2013 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting

  15. Temperature control apparatus

    DOE Patents [OSTI]

    Northrup, M. Allen

    2003-08-05

    A silicon-based sleeve type chemical reaction chamber that combines heaters, such as doped polysilicon for heating, and bulk silicon for convection cooling. The reaction chamber combines a critical ratio of silicon and non-silicon based materials to provide the thermal properties desired. For example, the chamber may combine a critical ratio of silicon and silicon nitride to the volume of material to be heated (e.g., a liquid) in order to provide uniform heating, yet low power requirements. The reaction chamber will also allow the introduction of a secondary tube (e.g., plastic) into the reaction sleeve that contains the reaction mixture thereby alleviating any potential materials incompatibility issues. The reaction chamber may be utilized in any chemical reaction system for synthesis or processing of organic, inorganic, or biochemical reactions, such as the polymerase chain reaction (PCR) and/or other DNA reactions, such as the ligase chain reaction, which are examples of a synthetic, thermal-cycling-based reaction. The reaction chamber may also be used in synthesis instruments, particularly those for DNA amplification and synthesis.

  16. United States-Russian laboratory-to-laboratory cooperation on protection, control, and accounting for naval nuclear materials

    SciTech Connect (OSTI)

    Sukhoruchkin, V.; Yurasov, N.; Goncharenko, Y.; Mullen, M.; McConnell, D.

    1996-12-31

    In March 1995, the Russian Navy contacted safeguards experts at the Kurchatov Institute (KI) and proposed the initiation of work to enhance nuclear materials protection, control, and accounting (MPC and A) at Russian Navy facilities. Because of KI`s successful experience in laboratory-to-laboratory MPC and A cooperation with US Department of Energy Laboratories, the possibility of US participation in the work with the Russian Navy was explored. Several months later, approval was received from the US Government and the Russian Navy to proceed with this work on a laboratory-to-laboratory basis through Kurchatov Institute. As a first step in the cooperation, a planning meeting occurred at KI in September, 1995. Representatives from the US Department of Energy (DOE), the US Department of Defense (DOD), the Russian Navy, and KI discussed several areas for near-term cooperative work, including a vulnerability assessment workshop and a planning study to identify and prioritize near-term MPC and A enhancements that might be implemented at Russian facilities which store or handle unirradiated highly enriched uranium fuel for naval propulsion applications. In subsequent meetings, these early proposals have been further refined and extended. This MPC and A cooperation will now include enhanced protection and control features for storage facilities and refueling service ships, computerized accounting systems for naval fuel, methods and equipment for rapid inventories, improved security of fresh fuel during truck transportation, and training. This paper describes the current status and future plans for MPC and A cooperation for naval nuclear materials.

  17. p-Hydroxyphenyl (H) Units Lower the Degree of Polymerization in Lignin: Chemical Control in Lignin Biosynthesis

    SciTech Connect (OSTI)

    Sangha, A. K.; Parks, J. M.; Davis, M. F.; Smith, J. C.

    2013-01-01

    Lignin, composed predominantly of p-hydroxyphenyl (H), guaiacyl (G) and syringyl (S) subunits, is a major component of plant cell walls that imparts resistance toward chemical and microbial deconstruction of plant biomass, rendering its conversion inefficient and costly. Previous studies have shown that alterating lignin composition, i.e., the relative abundance of H, G and S subunits, promises more efficient extraction of sugars from plant biomass. Smaller and less branched lignin chains are more easily extracted during pretreatment, making cellulose more readily degradable. Here, using density functional theory calculations, we show that the incorporation of H subunits into lignin via b-b and b-5 interunit linkages reduces the degree of polymerization in lignin. Frontier molecular orbital analyses of lignin dimers and trimers show that H as a terminal subunit on a growing lignin polymer linked via b-b and b-5 linkage cannot undergo radical formation, preventing further chain growth by endwise polymerization resulting in lignin polymers with lower degree of polymerization. These results indicate that, for endwise polymerization in lignin synthesis, there exists a chemical control that may lay a significant role in determining the structure of lignin.

  18. Vehicle Technologies Office Merit Review 2015: Low Temperature Emission Control to Enable Fuel-Efficient Engine Commercialization

    Broader source: Energy.gov [DOE]

    Presentation given by Oak Ridge National Laboratory at 2015 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Office Annual Merit Review and Peer Evaluation Meeting about low temperature...

  19. Vehicle Technologies Office Merit Review 2014: Low Temperature Emission Control to Enable Fuel-Efficient Engine Commercialization

    Broader source: Energy.gov [DOE]

    Presentation given by Oak Ridge National Laboratory at 2014 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Office Annual Merit Review and Peer Evaluation Meeting about low temperature...

  20. Low-temperature growth and orientational control in RuO{sub 2} thin films by metal-organic chemical vapor deposition

    SciTech Connect (OSTI)

    Bai, G.R.; Wang, A.; Foster, C.M.; Vetrone, J.; Patel, J.; Wu, X.

    1996-08-01

    For growth temperatures in the range of 275 C to 425 C, highly conductive RuO{sub 2} thin films with either (110)- or (101)-textured orientations have been grown by metal-organic chemical vapor deposition (MOCVD) on both SiO{sub 2}/Si(001) and Pt/Ti/SiO{sub 2}/Si(001) substrates. Both the growth temperature and growth rate were used to control the type and degree of orientational texture of the RuO{sub 2} films. In the upper part of this growth temperature range ({approximately} 350 C) and at a low growth rate (< 30 {angstrom}/min.), the RuO{sub 2} films favored a (110)-textured. In contrast, at the lower part of this growth temperature range ({approximately} 300 C) and at a high growth rate (> 30 {angstrom}/min.), the RuO{sub 2} films favored a (101)-textured. In contrast, a higher growth temperatures (> 425 C) always produced randomly-oriented polycrystalline films. For either of these low-temperature growth processes, the films produced were crack-free, well-adhered to the substrates, and had smooth, specular surfaces. Atomic force microscopy showed that the films had a dense microstructure with an average grain size of 50--80 nm and a rms. surface roughness of {approximately} 3--10 nm. Four-probe electrical transport measurements showed that the films were highly conductive with resistivities of 34--40 {micro}{Omega}-cm ({at} 25 C).

  1. Ultrasonic Phased Array Assessment of the Interference Fit and Leak Path of the North Anna Unit 2 Control Rod Drive Mechanism Nozzle 63 with Destructive Validation

    SciTech Connect (OSTI)

    Crawford, Susan L.; Cinson, Anthony D.; MacFarlan, Paul J.; Hanson, Brady D.; Mathews, Royce

    2012-08-01

    The objective of this investigation was to evaluate the efficacy of ultrasonic testing (UT) for primary water leak path assessments of reactor pressure vessel (RPV) upper head penetrations. Operating reactors have experienced leakage when stress corrosion cracking of nickel-based alloy penetrations allowed primary water into the annulus of the interference fit between the penetration and the low-alloy steel RPV head. In this investigation, UT leak path data were acquired for an Alloy 600 control rod drive mechanism nozzle penetration, referred to as Nozzle 63, which was removed from the North Anna Unit 2 reactor when the RPV head was replaced in 2002. In-service inspection prior to the head replacement indicated that Nozzle 63 had a probable leakage path through the interference fit region. Nozzle 63 was examined using a phased-array UT probe with a 5.0-MHz, eight-element annular array. Immersion data were acquired from the nozzle inner diameter surface. The UT data were interpreted by comparing to responses measured on a mockup penetration with known features. Following acquisition of the UT data, Nozzle 63 was destructively examined to determine if the features identified in the UT examination, including leakage paths and crystalline boric acid deposits, could be visually confirmed. Additional measurements of boric acid deposit thickness and low-alloy steel wastage were made to assess how these factors affect the UT response. The implications of these findings for interpreting UT leak path data are described.

  2. Catalytic destruction of perchlorate in ferric chloride and hydrochloric acid solution with control of temperature, pressure and chemical reagents

    DOE Patents [OSTI]

    Gu, Baohua; Cole, David R.; Brown, Gilbert M.

    2004-10-05

    A method is described to decompose perchlorate in a FeCl.sub.3 /HCl aqueous solution such as would be used to regenerate an anion exchange resin used to remove perchlorate. The solution is mixed with a reducing agent, preferably an organic alcohol and/or ferrous chloride, and can be heated to accelerate the decomposition of perchlorate. Lower temperatures may be employed if a catalyst is added.

  3. Tunable trimers: Using temperature and pressure to control luminescent emission in gold(I) pyrazolate-based trimers

    SciTech Connect (OSTI)

    Woodall, Christopher H.; Fuertes, Sara; Beavers, Christine M.; Hatcher, Lauren E.; Parlett, Andrew; Shepherd, Helena J.; Christensen, Jeppe; Teat, Simon J.; Intissar, Mourad; Rodrigue-Witchel, Alexandre; Suffren, Yan; Reber, Christian; Hendon, Christopher H.; Tiana, Davide; Walsh, Aron; Raithby, Paul R.

    2014-10-21

    A systematic investigation into the relationship between the solid-state luminescence and the intermolecular Au???Au interactions in a series of pyrazolate-based gold(I) trimers; tris(?2-pyrazolato-N,N')-tri-gold(I) (1), tris(?2-3,4,5-trimethylpyrazolato-N,N')-tri-gold(I) (2), tris(?2-3-methyl-5-phenylpyrazolato-N,N')-tri-gold(I) (3) and tris(?2-3,5-diphenylpyrazolato-N,N')-tri-gold(I) (4) has been carried out using variable temperature and high pressure X-ray crystallography, solid-state emission spectroscopy, Raman spectroscopy and computational techniques. Single-crystal X-ray studies show that there is a significant reduction in the intertrimer Au???Au distances both with decreasing temperature and increasing pressure. In the four complexes, the reduction in temperature from 293 to 100 K is accompanied by a reduction in the shortest intermolecular Au???Au contacts of between 0.04 and 0.08 . The solid-state luminescent emission spectra of 1 and 2 display a red shift with decreasing temperature or increasing pressure. Compound 3 does not emit under ambient conditions but displays increasingly red-shifted luminescence upon cooling or compression. Compound 4 remains emissionless, consistent with the absence of intermolecular Au???Au interactions. The largest pressure induced shift in emission is observed in 2 with a red shift of approximately 630 cm-1 per GPa between ambient and 3.80 GPa. The shifts in all the complexes can be correlated with changes in Au???Au distance observed by diffraction.

  4. Tunable trimers: Using temperature and pressure to control luminescent emission in gold(I) pyrazolate-based trimers

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Woodall, Christopher H.; Fuertes, Sara; Beavers, Christine M.; Hatcher, Lauren E.; Parlett, Andrew; Shepherd, Helena J.; Christensen, Jeppe; Teat, Simon J.; Intissar, Mourad; Rodrigue-Witchel, Alexandre; et al

    2014-10-21

    A systematic investigation into the relationship between the solid-state luminescence and the intermolecular Au∙∙∙Au interactions in a series of pyrazolate-based gold(I) trimers; tris(μ2-pyrazolato-N,N')-tri-gold(I) (1), tris(μ2-3,4,5-trimethylpyrazolato-N,N')-tri-gold(I) (2), tris(μ2-3-methyl-5-phenylpyrazolato-N,N')-tri-gold(I) (3) and tris(μ2-3,5-diphenylpyrazolato-N,N')-tri-gold(I) (4) has been carried out using variable temperature and high pressure X-ray crystallography, solid-state emission spectroscopy, Raman spectroscopy and computational techniques. Single-crystal X-ray studies show that there is a significant reduction in the intertrimer Au∙∙∙Au distances both with decreasing temperature and increasing pressure. In the four complexes, the reduction in temperature from 293 to 100 K is accompanied by a reduction in the shortest intermolecular Au∙∙∙Au contacts of between 0.04more » and 0.08 Å. The solid-state luminescent emission spectra of 1 and 2 display a red shift with decreasing temperature or increasing pressure. Compound 3 does not emit under ambient conditions but displays increasingly red-shifted luminescence upon cooling or compression. Compound 4 remains emissionless, consistent with the absence of intermolecular Au∙∙∙Au interactions. The largest pressure induced shift in emission is observed in 2 with a red shift of approximately 630 cm-1 per GPa between ambient and 3.80 GPa. The shifts in all the complexes can be correlated with changes in Au∙∙∙Au distance observed by diffraction.« less

  5. United States

    Office of Legacy Management (LM)

    Office of Research and EPA 600/R-941209 Environmental Protection Development January 1993 Agency Washington, DC 20460 Offsite Environmental 57,,7 Monitoring Report Radiation Monitoring Around United States Nuclear Test Areas, Calendar Year 1992 UNITED STATES ENVIRONMENTAL PROTECTION AGENCY OFFICE OF RESEARCH AND DEVELOPMENT ENVIRONMENTAL MONITORING SYSTEMS LABORATORY-LAS VEGAS P.O. BOX 93478 LAS VEGAS. NEVADA 891 93-3478 702/798-2100 Dear Reader: Since 1954, the U.S. Environmental Protection

  6. Observations and models of emissions of volatile terpenoid compounds from needles of ponderosa pine trees growing in situ: Controls by light, temperature and stomatal conductance

    SciTech Connect (OSTI)

    Harley, P.; Eller, Allyson; Guenther, Alex B.; Monson, Russell K.

    2014-07-14

    Terpenoid emissions from ponderosa pine (Pinus ponderosa subsp. scopulorum) were measured in Colorado, USA over two growing seasons to evaluate the role of incident light, needle temperature and stomatal conductance in controlling emissions of 2-methyl-3-buten-2-ol (MBO) and several monoterpenes. MBO was the dominant daylight terpenoid emission, comprising on average 87% of the total flux, and diurnal variations were largely determined by light and temperature. During daytime, oxygenated monoterpenes (especially linalool) comprised up to 75% of the total monoterpenoid flux from needles. A significant fraction of monoterpenoid emissions was light dependent and 13CO2 labeling studies confirmed de novo production. Thus, modeling of monoterpenoid emissions required a hybrid model in which a significant fraction of emissions was dependent on both light and temperature, while the remainder was dependent on temperature alone. Experiments in which stomata were forced to close using abscisic acid demonstrated that MBO and a large fraction of the monoterpene flux, presumably linalool, could be limited at the scale of seconds to minutes by stomatal conductance. Using a previously published model of terpenoid emissions which explicitly accounts for the physico-chemical properties of emitted compounds, we are able to simulate these observed stomatal effects, whether induced through experimentation or arising under naturally fluctuation conditions of temperature and light. This study shows unequivocally that, under naturally occurring field conditions, de novo light dependent monoterpenes can comprise a large fraction of emissions. Differences between the monoterpene composition of ambient air and needle emissions imply a significant non-needle emission source enriched in ?-3-carene.

  7. Controlling

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Controlling chaos in low- and high-dimensional systems with periodic parametric perturbations K. A. Mirus and J. C. Sprott Department of Physics, University of Wisconsin, Madison, Wisconsin 53706 ͑Received 29 June 1998͒ The effect of applying a periodic perturbation to an accessible parameter of various chaotic systems is examined. Numerical results indicate that perturbation frequencies near the natural frequencies of the unstable periodic orbits of the chaotic systems can result in limit

  8. High Temperature Interfacial Superconductivity - Energy Innovation...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Technology Marketing Summary Cuprate superconductors exhibit relatively high transition temperatures, but their unit cells are complex and large. Localizing a...

  9. United States

    Office of Legacy Management (LM)

    ongrees;ional Record United States of America __._ -.. I. :- PROCEEDINGS AND DEBATES OF THE 9tth CONGRESS, FIRST SESSION United States Government Printing Office SUPERINTENDENT OF DOCUMENTS Washmcqton. Cl C 20402 OFFICIAL BUSINESS Penalty Ior pwate use. $300 Congressmal Record (USPS 087-390) Postage and Fees Pad U S Governme3n:jPnntmg OfIce SECOND CLASS NEWSPAPER H.4578 ' June 28, 1983 -: I H.J. Res. 273: Mr. BOLAND, Mr. WA-. Mr. OBERSTAFC, M' r. BEDELL, Mr. BONER of Tennessee, Mr. OWENS. Mr.

  10. United States

    Office of Legacy Management (LM)

    onp5fGonal Ruord United States of America . I. .' - PROCEEDINGS AND DEBATES OF THE 9t?lh CONGRESS, FIRST SESSION United States Government Printing Office SUPERINTENDENT OF DOCUMENTS Wash!ogtm. 0.C 20402 OFFICIAL BUSINESS Penalty for pwate use. sco Congressmal Record (USPS 087-390) Postage and Fees Pad I.) s ~lJ"er"ment Prlntlng OffIce 375 SECOND CLASS NEWSPAPER -...~-- -~- -- --- H 45' 78 ' cCJ~GRESSIONAL RECORD - HOUSE June 28, 1983 H.J. Res. 213: Mr. BOLAND, Mr. WAXM.UG Mr. OBERSTAR.

  11. United States

    Office of Legacy Management (LM)

    onSres;eional atecord United States of America :- PROCEEDINGS AND DEBATES OF THE 981h CONGRESS, FIRST SESSION United States Government Printing Office SUPERINTENDENT OF DOCUMENTS Washwtn. D C 20402 OFFICIAL BUSINESS Penalty for plvate use. $300 Congressmnal Record (USPS 087-390) Postage and Fees Pad U S Government Prtnttng Offlce 375 SECOND CLASS NEWSPAPER H 45' 78 * C.QvGRESSIONAL RECORD - HOUSE .-. June 28, 1983 H.J. Res. 273: Mr. BOLAND. Mr. Whxrdhr?. Mr. OBERsThx. Mi. BEDELL, Mr. BONER of

  12. United States

    Office of Legacy Management (LM)

    WASHINGTON, TUESDAY, JUNE 28, 1983 @nngmeional Ruord United States of America .__ -- . . ,- PROCEEDINGS AND DEBATES OF THE 9@ CONGRESS, FIRST SESSION United States Government Printing Office SUPERINTENDENT OF DOCUMENTS Washmgton, D C 20402 OFFICIAL BUSINESS Penalty Ior pwate use. $xX Congresstonal Record (USPS 087-390) Postage and Fees Pad U S Government Prlnhng 0ffv.X 375 SECOND CLASS NEWSPAPER H.4578 ' C.QNGRESSIONAL RECORD - HOUSE June 28, 1983 H.J. Res. 273: Mr. BOUND. Mr. W~.XMAN. Mr.

  13. Gate-control efficiency and interface state density evaluated from capacitance-frequency-temperature mapping for GaN-based metal-insulator-semiconductor devices

    SciTech Connect (OSTI)

    Shih, Hong-An; Kudo, Masahiro; Suzuki, Toshi-kazu

    2014-11-14

    We present an analysis method for GaN-based metal-insulator-semiconductor (MIS) devices by using capacitance-frequency-temperature (C-f-T) mapping to evaluate the gate-control efficiency and the interface state density, both exhibiting correlations with the linear-region intrinsic transconductance. The effectiveness of the method was exemplified by application to AlN/AlGaN/GaN MIS devices to elucidate the properties of AlN-AlGaN interfaces depending on their formation processes. Using the C-f-T mapping, we extract the gate-bias-dependent activation energy with its derivative giving the gate-control efficiency, from which we evaluate the AlN-AlGaN interface state density through the Lehovec equivalent circuit in the DC limit. It is shown that the gate-control efficiency and the interface state density have correlations with the linear-region intrinsic transconductance, all depending on the interface formation processes. In addition, we give characterization of the AlN-AlGaN interfaces by using X-ray photoelectron spectroscopy, in relation with the results of the analysis.

  14. United States

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    1 United States Department of Energy Southeastern Power Administration Wholesale Power Rate Schedule CBR-1-H Availability: This rate schedule shall be available to Big Rivers Electric Corporation and includes the City of Henderson, Kentucky (hereinafter called the Customer). Applicability: This rate schedule shall be applicable to electric capacity and energy available from the Dale Hollow, Center Hill, Wolf Creek, Cheatham, Old Hickory, Barkley, J. Percy Priest, and Cordell Hull Projects (all

  15. United States

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    7 United States Department of Energy Southeastern Power Administration Wholesale Power Rate Schedule CTV-1-H Availability: This rate schedule shall be available to the Tennessee Valley Authority (hereinafter called TVA). Applicability: This rate schedule shall be applicable to electric capacity and energy generated at the Dale Hollow, Center Hill, Wolf Creek, Old Hickory, Cheatham, Barkley, J. Percy Priest, and Cordell Hull Projects (all of such projects being hereafter called collectively the

  16. United States

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    8 United States Department of Energy Southeastern Power Administration Wholesale Power Rate Schedule CTVI-1-A Availability: This rate schedule shall be available to customers (hereinafter called the Customer) who are or were formerly in the Tennessee Valley Authority (hereinafter called TVA) service area. Applicability: This rate schedule shall be applicable to electric capacity and energy generated at the Dale Hollow, Center Hill, Wolf Creek, Old Hickory, Cheatham, Barkley, J. Percy Priest, and

  17. Passive environmental temperature control system

    DOE Patents [OSTI]

    Corliss, John M. (Columbus, OH); Stickford, George H. (Columbus, OH)

    1981-01-01

    Passive environmental heating and cooling systems are described, which utilize heat pipes to transmit heat to or from a thermal reservoir. In a solar heating system, a heat pipe is utilized to carry heat from a solar heat absorber plate that receives sunlight, through a thermal insulation barrier, to a heat storage wall, with the outer end of the pipe which is in contact with the solar absorber being lower than the inner end. The inclining of the heat pipe assures that the portion of working fluid, such as Freon, which is in a liquid phase will fall by gravity to the outer end of the pipe, thereby assuring diode action that prevents the reverse transfer of heat from the reservoir to the outside on cool nights. In a cooling system, the outer end of the pipe which connects to a heat dissipator, is higher than the inner end that is coupled to a cold reservoir, to allow heat transfer only out of the reservoir to the heat dissipator, and not in the reverse direction.

  18. United States

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    E-T Global Energy, LLC OE Docket No. EA-381 Order Authorizing Electricity Exports to Mexico Order No. EA-381 June 10, 2011 I. BACKGROUND E-T Global Energy, LLC Order No. EA-381 Exports of electricity from the United States to a foreign country are regulated by the Department of Energy (DOE) pursuant to sections 301(b) and 402(f) of the Department ofEnergy Organization Act (42 U.S.C. 7151(b), 7172(f)) and require authorization under section 202(e) ofthe Federal Power Act (FPA) (16 U.S.C.824a(e))

  19. United States

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Tenaslta Power Services Co. OE Docket No. EA-243-A Order Authorizing Electricity Exports to Canada Order No. EA-243-A March 1,2007 Tenaska Power Services Co. Order No. EA-243-A I. BACKGROUND Exports of elcctricity from the United States to a foreign country are regulated by the Department of Energy (DOE) pursuant to sections 30 I(b) and 402(f) of the Departrncnt of' Energy Organizatio~l Act (42 U, S.C. 7 15 1 (b), 7 1 72Cf)) and rcquirc authorization under section 202(e) of the Federal Power Act

  20. United States

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    TexMex Energy, LLC OE Docket No. EA-294-A Order Authorizing Electricity Exports to Mexico Order No. EA-294-A February 22, 2007 TexMex Energy, LLC Order No. EA-294-A I. BACKGROUND Exports of electricity from the United States to a foreign count~y are regulated by the Department of Energy (DOE) pursuant to sections 301(b) and 402(f) of the Department of Energy Organization Act (42 U.S.C. 7 15 1 (b), 71 72(f)) and require authorization under section 202(e) of the Federal Power Act (FPA) (16

  1. United States

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    BP Energy Company OE Docket No. EA- 3 14 Order Authorizing Electricity Exports to Mexico Order No. EA-3 14 February 22,2007 BP Energy Company Order No. EA-314 I. BACKGROUND Exports of electricity from the United States to a foreign country are regulated by the Department of Energy (DOE) pursuant to sections 301(b) and 402(Q of the Department of Energy Organization Act (42 U.S.C. 7 15 l(b), 7172(f)) and require authorization under section 202(e) of the Federal Power Act (FPA) (16 U.S.C.S24a(e)) .

  2. United States

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    CSW Power Marketing OE Docket No. EA-3 1 8 Order Authorizing Electricity Exports to Mexico Order No. EA-3 18 February 22,2007 CSW Power Marketing Order No. EA-318 I. BACKGROUND Exports of electricity from the United States to a foreign country are regulated by the Department of Energy (DOE) pursuant to sections 30l(b) and 402(f) of the Department of Energy Organization Act (42 U.S.C. 7 1 5 1 (b), 7 1 72(f)) and require authorization under section 202(e) of the Federal Power Act (FPA) (16

  3. Efficiency United (Gas) - Commercial Efficiency Program | Department...

    Broader source: Energy.gov (indexed) [DOE]

    Furnace Tune-up: 15-100unit Infrared Heaters: 4MBH Hotel Guest Room Occupancy Sensor: 13unit Demand Control Ventilation: 0.05sq. ft. HVAC Occupancy Sensor: 0.02...

  4. Low axial drift stage and temperature controlled liquid cell for z-scan fluorescence correlation spectroscopy in an inverted confocal geometry

    SciTech Connect (OSTI)

    Allgeyer, Edward S.; Sterling, Sarah M.; Neivandt, David J.; Mason, Michael D.

    2011-05-15

    A recent iteration of fluorescence correlation spectroscopy (FCS), z-scan FCS, has drawn attention for its elegant solution to the problem of quantitative sample positioning when investigating two-dimensional systems while simultaneously providing an excellent method for extracting calibration-free diffusion coefficients. Unfortunately, the measurement of planar systems using (FCS and) z-scan FCS still requires extremely mechanically stable sample positioning, relative to a microscope objective. As axial sample position serves as the inherent length calibration, instabilities in sample position will affect measured diffusion coefficients. Here, we detail the design and function of a highly stable and mechanically simple inverted microscope stage that includes a temperature controlled liquid cell. The stage and sample cell are ideally suited to planar membrane investigations, but generally amenable to any quantitative microscopy that requires low drift and excellent axial and lateral stability. In the present work we evaluate the performance of our custom stage system and compare it with the stock microscope stage and typical sample sealing and holding methods.

  5. Termination unit

    DOE Patents [OSTI]

    Traeholt, Chresten [Frederiksberg, DK; Willen, Dag [Klagshamn, SE; Roden, Mark [Newnan, GA; Tolbert, Jerry C [Carrollton, GA; Lindsay, David [Carrollton, GA; Fisher, Paul W [Heiskell, TN; Nielsen, Carsten Thidemann [Jaegerspris, DK

    2014-01-07

    This invention relates to a termination unit comprising an end-section of a cable. The end section of the cable defines a central longitudinal axis and comprising end-parts of N electrical phases, an end-part of a neutral conductor and a surrounding thermally insulation envelope adapted to comprising a cooling fluid. The end-parts of the N electrical phases and the end-part of the neutral conductor each comprising at least one electrical conductor and being arranged in the cable concentrically around a core former with a phase 1 located relatively innermost, and phase N relatively outermost in the cable, phase N being surrounded by the neutral conductor, electrical insulation being arrange between neighboring electrical phases and between phase N and the neutral conductor, and wherein the end-parts of the neutral conductor and the electrical phases each comprise a contacting surface electrically connected to at least one branch current lead to provide an electrical connection: The contacting surfaces each having a longitudinal extension, and being located sequentially along the longitudinal extension of the end-section of the cable. The branch current leads being individually insulated from said thermally insulation envelope by individual electrical insulators.

  6. S. 3168: A Bill to amend the Surface Mining Control and Reclamation Act of 1977 to improve control of acid mine drainage, and for other purposes. Introduced in the Senate of the United States, August 11, 1992

    SciTech Connect (OSTI)

    Not Available

    1992-01-01

    This Act may be cited as the [open quotes]Acid Mine Drainage Abatement Act of 192[close quotes]. The purpose of this bill is to amend the Surface Mining Control and Reclamation Act of 1977 to improve control of acid mine drainage, and for other purposes. The proposed amendments are listed.

  7. EA-2011: Proposed Release of Three Parasitoids for the Biological Control of the Emerald Ash Borer (Agrilus Planipennis) in the Continental United States

    Broader source: Energy.gov [DOE]

    USDA Animal and Plant Health Inspection Service issued an EA (July 2007) that analyzed the potential environmental impacts of the release of three parasitoids into the continental U.S. for the biological control of the emerald ash borer, a nonnative invasive beetle. The DOE Oak Ridge Office reviewed the EA, adopted it, and issued a FONSI for the proposed release of the same parasitoids into the environment on the Oak Ridge Reservation.

  8. Floating Point Control Library

    Energy Science and Technology Software Center (OSTI)

    2007-08-02

    Floating Point Control is a Library that allows for the manipulation of floating point unit exception masking funtions control exceptions in both the Streaming "Single Instruction, Multiple Data" Extension 2 (SSE2) unit and the floating point unit simultaneously. FPC also provides macros to set floating point rounding and precision control.

  9. Dynamic Modeling in Solid-Oxide Fuel Cells Controller Design

    SciTech Connect (OSTI)

    Lu, Ning; Li, Qinghe; Sun, Xin; Khaleel, Mohammad A.

    2007-06-28

    In this paper, a dynamic model of the solid-oxide fuel cell (SOFC) power unit is developed for the purpose of designing a controller to regulate fuel flow rate, fuel temperature, air flow rate, and air temperature to maintain the SOFC stack temperature, fuel utilization rate, and voltage within operation limits. A lumped model is used to consider the thermal dynamics and the electro-chemial dynamics inside an SOFC power unit. The fluid dynamics at the fuel and air inlets are considered by using the in-flow ramp-rates.

  10. Open-field host specificity test of Gratiana boliviana (Coleoptera: Chrysomelidae), a biological control agent of tropical soda apple (Solanaceae) in the United States

    SciTech Connect (OSTI)

    Gandolfo, D.; McKay, F.; Medal, J.C.; Cuda, J.P.

    2007-03-15

    An open-field experiment was conducted to assess the suitability of the South American leaf feeding beetle Gratiana boliviana Spaeth for biological control of Solanum viarum Dunal in the USA. An open-field test with eggplant, Solanum melongena L., was conducted on the campus of the University of Buenos Aires, Argentina, and a S. viarum control plot was established 40 km from the campus. One hundred adult beetles were released in each plot at the beginning of the experiment during the vegetative stage of the plants, and forty additional beetles were released in the S. melongena plot at the flowering stage. All the plants in each plot were checked twice a week and the number of adults, immatures, and eggs recorded. Results showed almost a complete rejection of eggplant by G. boliviana. No noticeable feeding damage was ever recorded on eggplant. The experiment was ended when the eggplants started to senesce or were severely damaged by whiteflies and spider mites. The results of this open-field experiment corroborate previous quarantine/laboratory host-specificity tests indicating that a host range expansion of G. boliviana to include eggplant is highly unlikely. Gratiana boliviana was approved for field release in May 2003 in the USA. To date, no non-target effects have been observed either on eggplant or native species of Solanum. (author) [Spanish] Una prueba de campo fue conducida para evaluar la especificidad del escarabajo suramericano defoliador Gratiana boliviana Spaeth para control biologico de Solanum viarum Dunal en los Estados Unidos. La prueba con berenjena se realizo en el campo experimental de la Universidad de Buenos Aires, Argentina, y una parcela control con S. viarum fue establecida a 40 km. Cien escarabajos adultos fueron liberados en cada parcela al inicio del experimento durante la fase vegetativa, y cuarenta escarabajos adicionales fueron liberados en la parcela de berenjena durante la floracion. Todas las plantas en cada parcela fueron inspeccionadas dos veces a la semana y el numero de adultos, larvas, y posturas fueron registrados. Resultados indicaron un casi completo rechazo de la berenjena por G. boliviana. Ningun dano visible de defoliacion en la berenjena fue detectado. Las pruebas concluyeron cuando las plantas de berenjena alcazaron su madurez o fueron severamente danadas por mosca blanca y acaros. Resultados corroboran previas pruebas de especificidad en laboratorio/cuarentena que indican que la berenjena no es un hospedero de G. boliviana y que la posibilidad de llegar a ser una plaga de este cultivo es muy remota. Gratiana boliviana fue aprobado para ser liberado en el campo en mayo del 2003. Ningun dano ha sido observado hasta la fecha a plantas no blanco. (author)

  11. Contamination analysis unit

    DOE Patents [OSTI]

    Gregg, Hugh R. (Livermore, CA); Meltzer, Michael P. (Livermore, CA)

    1996-01-01

    The portable Contamination Analysis Unit (CAU) measures trace quantifies of surface contamination in real time. The detector head of the portable contamination analysis unit has an opening with an O-ring seal, one or more vacuum valves and a small mass spectrometer. With the valve closed, the mass spectrometer is evacuated with one or more pumps. The O-ring seal is placed against a surface to be tested and the vacuum valve is opened. Data is collected from the mass spectrometer and a portable computer provides contamination analysis. The CAU can be used to decontaminate and decommission hazardous and radioactive surface by measuring residual hazardous surface contamination, such as tritium and trace organics It provides surface contamination data for research and development applications as well as real-time process control feedback for industrial cleaning operations and can be used to determine the readiness of a surface to accept bonding or coatings.

  12. Contamination analysis unit

    DOE Patents [OSTI]

    Gregg, H.R.; Meltzer, M.P.

    1996-05-28

    The portable Contamination Analysis Unit (CAU) measures trace quantities of surface contamination in real time. The detector head of the portable contamination analysis unit has an opening with an O-ring seal, one or more vacuum valves and a small mass spectrometer. With the valve closed, the mass spectrometer is evacuated with one or more pumps. The O-ring seal is placed against a surface to be tested and the vacuum valve is opened. Data is collected from the mass spectrometer and a portable computer provides contamination analysis. The CAU can be used to decontaminate and decommission hazardous and radioactive surfaces by measuring residual hazardous surface contamination, such as tritium and trace organics. It provides surface contamination data for research and development applications as well as real-time process control feedback for industrial cleaning operations and can be used to determine the readiness of a surface to accept bonding or coatings. 1 fig.

  13. Rooftop Unit Campaign | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Campaign Rooftop Unit Campaign Commercial Buildings Integration Project for the 2013 Building Technologies Office's Program Peer Review PDF icon commlbldgs17_deru_040413.pdf More Documents & Publications Better Buildings Alliance - 2013 BTO Peer Review Rooftop Unit Suite: RTU Challenge, RTU Advanced Controls and RTU Smart Monitoring and Diagnostic System - 2013 BTO Peer Review Rooftop Unit Network Project - 2013 BTO Peer Review

  14. " Million Housing Units, Final...

    U.S. Energy Information Administration (EIA) Indexed Site

    Water Heating in U.S. Homes, by Housing Unit Type, 2009" " Million Housing Units, Final" ... Units","5 or More Units","Mobile Homes" "Water Heating" "Total Homes",113.6,71.8,6.7,9,19...

  15. United States Government Memorandum

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Department of Energy United States Government Memorandum DATE: January 26, 2007 Audit Report Number: OAS-L-07-05 REPLY TO ATTN OF: IG-34 (A06GT035) SUBJECT: Report on "The Department of Energy's Implementation of Revised OMB Circular No. A-123" TO: Acting Chief Financial Officer, CF-1 INTRODUCTION AND OBJECTIVE The Office of Management arid Budget's (OMB) revised Circular No. A-123 (Circular) requires Federal agencies to assess the adequacy of their internal controls. Beginning in

  16. Universal power transistor base drive control unit

    DOE Patents [OSTI]

    Gale, A.R.; Gritter, D.J.

    1988-06-07

    A saturation condition regulator system for a power transistor is disclosed which achieves the regulation objectives of a Baker clamp but without dumping excess base drive current into the transistor output circuit. The base drive current of the transistor is sensed and used through an active feedback circuit to produce an error signal which modulates the base drive current through a linearly operating FET. The collector base voltage of the power transistor is independently monitored to develop a second error signal which is also used to regulate base drive current. The current-sensitive circuit operates as a limiter. In addition, a fail-safe timing circuit is disclosed which automatically resets to a turn OFF condition in the event the transistor does not turn ON within a predetermined time after the input signal transition. 2 figs.

  17. Universal power transistor base drive control unit

    DOE Patents [OSTI]

    Gale, Allan R. (Allen Park, MI); Gritter, David J. (Racine, WI)

    1988-01-01

    A saturation condition regulator system for a power transistor which achieves the regulation objectives of a Baker clamp but without dumping excess base drive current into the transistor output circuit. The base drive current of the transistor is sensed and used through an active feedback circuit to produce an error signal which modulates the base drive current through a linearly operating FET. The collector base voltage of the power transistor is independently monitored to develop a second error signal which is also used to regulate base drive current. The current-sensitive circuit operates as a limiter. In addition, a fail-safe timing circuit is disclosed which automatically resets to a turn OFF condition in the event the transistor does not turn ON within a predetermined time after the input signal transition.

  18. Next Generation Rooftop Unit - 2013 Peer Review | Department of Energy

    Energy Savers [EERE]

    Unit - 2013 Peer Review Next Generation Rooftop Unit - 2013 Peer Review Emerging Technologies Project for the 2013 Building Technologies Office's Program Peer Review PDF icon emrgtech11_shen_040313.pdf More Documents & Publications A typical commercial rooftop air-conditioning unit (RTU) Credit: Oak Ridge National Lab Next Generation Rooftop Unit Rooftop Unit Suite: RTU Challenge, RTU Advanced Controls and RTU Smart Monitoring and Diagnostic System - 2013 BTO Peer Review Rooftop Unit Network

  19. Decommissioning Unit Cost Data

    SciTech Connect (OSTI)

    Sanford, P. C.; Stevens, J. L.; Brandt, R.

    2002-02-26

    The Rocky Flats Closure Site (Site) is in the process of stabilizing residual nuclear materials, decommissioning nuclear facilities, and remediating environmental media. A number of contaminated facilities have been decommissioned, including one building, Building 779, that contained gloveboxes used for plutonium process development but did little actual plutonium processing. The actual costs incurred to decommission this facility formed much of the basis or standards used to estimate the decommissioning of the remaining plutonium-processing buildings. Recent decommissioning activities in the first actual production facility, Building 771, implemented a number of process and procedural improvements. These include methods for handling plutonium contaminated equipment, including size reduction, decontamination, and waste packaging, as well as management improvements to streamline planning and work control. These improvements resulted in a safer working environment and reduced project cost, as demonstrated in the overall project efficiency. The topic of this paper is the analysis of how this improved efficiency is reflected in recent unit costs for activities specific to the decommissioning of plutonium facilities. This analysis will allow the Site to quantify the impacts on future Rocky Flats decommissioning activities, and to develop data for planning and cost estimating the decommissioning of future facilities. The paper discusses the methods used to collect and arrange the project data from the individual work areas within Building 771. Regression and data correlation techniques were used to quantify values for different types of decommissioning activities. The discussion includes the approach to identify and allocate overall project support, waste management, and Site support costs based on the overall Site and project costs to provide a ''burdened'' unit cost. The paper ultimately provides a unit cost basis that can be used to support cost estimates for decommissioning at other facilities with similar equipment and labor costs. It also provides techniques for extracting information from limited data using extrapolation and interpolation techniques.

  20. Model-free adaptive control of advanced power plants

    DOE Patents [OSTI]

    Cheng, George Shu-Xing; Mulkey, Steven L.; Wang, Qiang

    2015-08-18

    A novel 3-Input-3-Output (3.times.3) Model-Free Adaptive (MFA) controller with a set of artificial neural networks as part of the controller is introduced. A 3.times.3 MFA control system using the inventive 3.times.3 MFA controller is described to control key process variables including Power, Steam Throttle Pressure, and Steam Temperature of boiler-turbine-generator (BTG) units in conventional and advanced power plants. Those advanced power plants may comprise Once-Through Supercritical (OTSC) Boilers, Circulating Fluidized-Bed (CFB) Boilers, and Once-Through Supercritical Circulating Fluidized-Bed (OTSC CFB) Boilers.

  1. Initial Experimental Results of a Machine Learning-Based Temperature...

    Office of Scientific and Technical Information (OSTI)

    Temperature Control System for an RF Gun Citation Details In-Document Search Title: Initial Experimental Results of a Machine Learning-Based Temperature Control ...

  2. Acoustic Imaging Evaluation of Juvenile Salmonid Behavior in the Immediate Forebay of the Water Temperature Control Tower at Cougar Dam, 2010

    SciTech Connect (OSTI)

    Khan, Fenton; Johnson, Gary E.; Royer, Ida M.; Phillips, Nathan RJ; Hughes, James S.; Fischer, Eric S.; Ploskey, Gene R.

    2011-10-01

    This report presents the results of an evaluation of juvenile Chinook salmonid (Oncorhynchus tshawytscha) behavior in the immediate forebay of the Water Temperature Control (WTC) tower at Cougar Dam in 2010. The study was conducted by the Pacific Northwest National Laboratory for the U.S. Army Corps of Engineers. The overall goal of the study was to characterize juvenile salmonid behavior and movement patterns in the immediate forebay of the WTC tower for fisheries resource managers to use to make decisions on bioengineering designs for long-term structures and/or operations to facilitate safe downstream passage for juvenile salmonids. We collected acoustic imaging (Dual-Frequency Identification Sonar; DIDSON) data from February 1, 2010 through January 31, 2011 to evaluate juvenile salmonid behavior year-round in the immediate forebay surface layer of the WTC tower (within 20 m, depth 0-5 m). From October 28, 2010 through January 31, 2011 a BlueView acoustic camera was also deployed in an attempt to determine its usefulness for future studies as well as augment the DIDSON data. For the DIDSON data, we processed a total of 35 separate 24-h periods systematically covering every other week in the 12-month study. Two different 24-hour periods were processed for the BlueView data for the feasibility study. Juvenile salmonids were present in the immediate forebay of the WTC tower throughout 2010. The juvenile salmonid abundance index was low in the spring (<200 fish per sample-day), began increasing in late April and peaked in mid-May. Fish abundance index began decreasing in early June and remained low in the summer months. Fish abundance increased again in the fall, starting in October, and peaked on November 8-9. A second peak occurred on December 22. Afterwards, abundance was low for the rest of the study (through January 2011). Average fish length for juvenile salmonids during early spring 2010 was 214 {+-} 86 mm (standard deviation). From May through early November, average fish length remained relatively consistent (132 {+-} 39 mm), after which average lengths increased to 294 {+-} 145 mm for mid-November though early December. Fish behavior analysis indicates milling in front of the intake tower was the most common behavior observed throughout the study period (>50% of total fish events). The next most common movement patterns were fish traversing along the front of the tower, east-to-west and west-to-east. The proportion of fish events seen moving into (forebay to tower) or out of (tower to forebay) the tower was generally low throughout the spring, summer, and early fall for both directions combined. From mid-December 2010 through the end of the study, the combined proportions of fish moving into and out of the tower were higher than previous months of this study. Schooling behavior was most distinct in the spring from late April through mid-June. Schooling events were present in 30 - 96% of the fish events during that period, with a peak in mid-May. Schooling events were also present in the summer, but at lower numbers. Diel distributions for schooling fish during spring, fall, and winter months indicate schooling was concentrated during daylight hours. No schooling was observed at night. Predator activity was observed during late spring, when fish abundance and schooling were highest for the year, and again in the fall months when fish events increased from a summer low. No predator activity was observed in the summer, and little activity occurred during the winter months. For the two days of BlueView data analyzed for vertical distribution in the forebay, a majority of fish (>50%) were present in the middle of the water column (10 - 20 m deep). Between 20 and 41 % of total fish abundance were found in the bottom of the water column (20 - 30 m deep). Few fish were observed in the top 10 m of the water column.

  3. Acoustic Imaging Evaluation of Juvenile Salmonid Behavior in the Immediate Forebay of the Water Temperature Control Tower at Cougar Dam, 2010

    SciTech Connect (OSTI)

    Khan, Fenton; Johnson, Gary E.; Royer, Ida M.; Phillips, Nathan RJ; Hughes, James S.; Fischer, Eric S.; Ham, Kenneth D.; Ploskey, Gene R.

    2012-04-01

    This report presents the results of an evaluation of juvenile Chinook salmon (Oncorhynchus tshawytscha) behavior at Cougar Dam on the south fork of the McKenzie River in Oregon in 2010. The study was conducted by the Pacific Northwest National Laboratory for the U.S. Army Corps of Engineers (USACE). The overall goal of the study was to characterize juvenile salmonid behavior and movement patterns in the immediate forebay of the Water Temperature Control (WTC) tower of the dam for USACE and fisheries resource managers use in making decisions about bioengineering designs for long-term structures and/or operations to facilitate safe downstream passage for juvenile salmonids. We collected acoustic imaging (Dual-Frequency Identification Sonar; DIDSON) data from March 1, 2010, through January 31, 2011. Juvenile salmonids (hereafter, called 'fish') were present in the immediate forebay of the WTC tower throughout the study. Fish abundance index was low in early spring (<200 fish per sample-day), increased in late April, and peaked on May 19 (6,039 fish). A second peak was observed on June 6 (2904 fish). Fish abundance index decreased in early June and remained low in the summer months (<100 fish per sample-day). During the fall and winter, fish numbers varied with a peak on November 10 (1881 fish) and a minimum on December 7 (12 fish). A second, smaller, peak occurred on December 22 (607 fish). A univariate statistical analysis indicated fish abundance index (log10-transformed) was significantly (P<0.05) positively correlated with forebay elevation, velocity over the WTC tower intake gate weirs, and river flows into the reservoir. A subsequent multiple regression analysis resulted in a model (R2=0.70) predicting fish abundance (log-transformed index values) using two independent variables of mean forebay elevation and the log10 of the forebay elevation range. From the approximate fish length measurements made using the DIDSON imaging software, the average fish length during early spring 2010 was 214 {+-} 86 mm (standard deviation). From May through early November, the average fish length remained relatively consistent (132 {+-} 54 mm), after which average lengths increased to 295 {+-} 148 mm for mid-November though early December. From mid-December through January the average fish length decreased to 151 {+-} 76 mm. Milling in front of the WTC tower was the most common fish behavior observed throughout the study period. Traversing along the front of the tower, east-to-west and west-to-east, was the next common behavior. The percentage of fish events showing movement from the forebay to the tower or from the tower to the forebay was generally low throughout the spring, summer, and early fall (0 to 30% for both directions combined, March through early November). From mid-November 2010 through the end of the study (January 31, 2011), the combined percentages of fish moving into and out of the tower were higher (25 to 70%) than during previous months of the study. Schooling behavior was most distinct in the spring. Schooling events were present in 30 to 96% of the fish events during that period, with a peak on May 19. Schooling events were also present in the summer, but at lower numbers. With the exception of some schooling in mid-December, few to no schooling events were observed in the fall and winter months. Diel distributions for schooling fish during spring and fall months indicate schooling was concentrated during daylight hours and no schooling was observed at night. However, in December, schooling occurred at night, after midnight, and during daylight hours. Predator activity, most likely bull trout or rainbow trout according to a USACE biologist, was observed during late spring, when fish abundance index and schooling were highest for the year, and again in the fall months when fish events increased from a summer low. No predator activity was observed in the summer, and little activity occurred during the winter months.

  4. Temperature System

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    1 Soil Water and Temperature System  SWATS In the realm of global climate modeling, numerous variables affect the state of the atmosphere and climate. One important area is soil moisture and temperature. The ARM Program uses several types of instruments to gather soil moisture information. An example is the soil water and temperature system (SWATS) (Figure 1). A SWATS is located at each of 21 extended facility sites within the CART site boundary. Each system is configured to measure soil

  5. Beamline Temperatures

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Temperatures Energy: 3.0000 GeV Current: 495.5347 mA Date: 09-Jan-2016 04:18:38 Beamline Temperatures Energy 3.0000 GeV Current 495.5 mA 09-Jan-2016 04:18:38 LN:MainTankLevel 112.0...

  6. Summary Max Total Units

    Energy Savers [EERE]

    Summary Max Total Units *If All Splits, No Rack Units **If Only FW, AC Splits 1000 52 28 28 2000 87 59 35 3000 61 33 15 4000 61 33 15 Totals 261 153 93 ***Costs $1,957,500.00 $1,147,500.00 $697,500.00 Notes: added several refrigerants removed bins from analysis removed R-22 from list 1000lb, no Glycol, CO2 or ammonia Seawater R-404A only * includes seawater units ** no seawater units included *** Costs = (total units) X (estimate of $7500 per unit) 1000lb, air cooled split systems, fresh water

  7. On the effect of deep-rolling and laser-peening on the stress-controlled low- and high-cycle fatigue behavior of Ti-6Al-4V at elevated temperatures up to 550?C

    SciTech Connect (OSTI)

    Ritchie, IAltenberger, RKNalla, YSano LWagner, RO

    2012-04-01

    The effect of surface treatment on the stress/life fatigue behavior of a titanium Ti-6Al-4V turbine fan blade alloy is investigated in the regime of 102 to 106 cycles to failure under fully reversed stress-controlled isothermal push-pull loading between 25? and 550?C at a frequency of 5 Hz. Specifically, the fatigue behavior was examined in specimens in the deep-rolled and laser-shock peened surface conditions, and compared to results on samples in the untreated (machined and stress annealed) condition. Although the fatigue resistance of the Ti-6Al-4V alloy declined with increasing test temperature regardless of surface condition, deep-rolling and laser-shock peening surface treatments were found to extend the fatigue lives by factors of more than 30 and 5-10, respectively, in the high-cycle and low-cycle fatigue regimes at temperatures as high as 550?C. At these temperatures, compressive residual stresses are essentially relaxed; however, it is the presence of near-surface work hardened layers, with a nanocystalline structure in the case of deep-rolling and dense dislocation tangles in the case of laser-shock peening, which remain fairly stable even after cycling at 450?-550?C, that provide the basis for the beneficial role of mechanical surface treatments on the fatigue strength of Ti-6Al-4V at elevated temperatures.

  8. Containment at the Source during Waste Volume Reduction of Large Radioactive Components Using Oxylance High-Temperature Cutting Equipment - 13595

    SciTech Connect (OSTI)

    Keeney, G. Neil

    2013-07-01

    As a waste-volume reduction and management technique, highly contaminated Control Element Drive Mechanism (CEDM) housings were severed from the Reactor Pressure Vessel Head (RPVH) inside the San Onofre Unit 2 primary containment utilizing Oxylance high-temperature cutting equipment and techniques. Presented are relevant data concerning: - Radiological profiles of the RPVH and individual CEDMs; - Design overviews of the engineering controls and the specialized confinement housings; - Utilization of specialized shielding; - Observations of apparent metallurgical-contamination coalescence phenomena at high temperatures resulting in positive control over loose-surface contamination conditions; - General results of radiological and industrial hygiene air sampling and monitoring; - Collective dose and personnel contamination event statistics; - Lessons learned. (author)

  9. First Annual Progress Report on Radiation Tolerance of Controlled Fusion Welds in High Temperature Oxidation Resistant FeCrAl Alloys

    SciTech Connect (OSTI)

    Field, Kevin G.; Gussev, Maxim N.; Hu, Xunxiang; Yamamoto, Yukinori; Howard, Richard H.

    2015-12-01

    The present report summarizes and discusses the first year efforts towards developing a modern, nuclear grade FeCrAl alloy designed to have enhanced radiation tolerance and weldability under the Department of Energy (DOE) Nuclear Energy Enabling Technologies (NEET) program. Significant efforts have been made within the first year of this project including the fabrication of seven candidate FeCrAl alloys with well controlled chemistry and microstructure, the microstructural characterization of these alloys using standardized and advanced techniques, mechanical properties testing and evaluation of base alloys, the completion of welding trials and production of weldments for subsequent testing, the design of novel tensile specimen geometry to increase the number of samples that can be irradiated in a single capsule and also shorten the time of their assessment after irradiation, the development of testing procedures for controlled hydrogen ingress studies, and a detailed mechanical and microstructural assessment of weldments prior to irradiation or hydrogen charging. These efforts and research results have shown promise for the FeCrAl alloy class as a new nuclear grade alloy class.

  10. Compact monolithic capacitive discharge unit

    DOE Patents [OSTI]

    Roesler, Alexander W. (Tijeras, NM); Vernon, George E. (Rio Rancho, NM); Hoke, Darren A. (Albuquerque, NM); De Marquis, Virginia K. (Tijeras, NM); Harris, Steven M. (Albuquerque, NM)

    2007-06-26

    A compact monolithic capacitive discharge unit (CDU) is disclosed in which a thyristor switch and a flyback charging circuit are both sandwiched about a ceramic energy storage capacitor. The result is a compact rugged assembly which provides a low-inductance current discharge path. The flyback charging circuit preferably includes a low-temperature co-fired ceramic transformer. The CDU can further include one or more ceramic substrates for enclosing the thyristor switch and for holding various passive components used in the flyback charging circuit. A load such as a detonator can also be attached directly to the CDU.

  11. Transportation Refrigeration Unit (TRU) Retrofit with HUSS Active...

    Broader source: Energy.gov (indexed) [DOE]

    Verifying TRU Passive DPF Cold Ambient Performance Active Diesel Emission Control Technology for Transport Refrigeration Units Engine-External HC-Dosing for Regeneration of Diesel ...

  12. Repowering with pressurized fluidized-bed combustion units

    SciTech Connect (OSTI)

    Goidich, S.J. ); Rubow, L.N. ); Kumar, S. . Environmental Services and Technologies Div.); Mukherjee, D. ); Childress, N.B. )

    1991-05-01

    Turbocharged pressurized fluidized bed combustion (PFBC) power plants operating with a gas turbine inlet temperature lower than 800{degrees}F can produce electricity more efficiently (34.2 vs. 33.5% net plant efficiency) and at a lower cost of electricity (87.8 vs. 96. 6 mill/kWh over 30 years) than conventional pulverized-coal-fired plants with scrubbers. Since the PFBC process produces lower NO{sub x} emissions than conventional pulverized-coal combustion systems and captures sulfur as part of the combustion process, and since major equipment components can be shop-assembled and shipped by barge, retrofit of an existing unit with a turbocharged PFBC boiler can be a cost-effective means for extending the life of the unit and meeting NSPS without retrofitting flue gas desulfurization systems. Using the Wisconsin Electric Power Company's Port Washington Unit 5 as an example, preliminary engineering and economic evaluations were made to investigate the merits of turbocharged PFBC retrofits. This report describes the conceptual designs of the new, major plant components; discusses how the new components are integrated with the existing balance-of-plant equipment; describes the proposed plant control system; and presents an overall economic evaluation. Because design and economic evaluations were prepared on the basis of a commercial design, first-of-a-kind costs and test programs are not included. 5 refs., 58 figs., 55 tabs.

  13. Occurrence of Low-Temperature Geothermal Waters in the United...

    Open Energy Info (EERE)

    790:86-131. Related Geothermal Exploration Activities Activities (1) Geothermal Literature Review At Lightning Dock Geothermal Area (Sammel, 1978) Areas (1) Lightning Dock...

  14. " Million Housing Units, Final...

    U.S. Energy Information Administration (EIA) Indexed Site

    ... Thermostat" "Adjusts Temperature During Day" "When No One is Home" "Yes",19.1,2.5,4.5,7.9,4.3 "No",13.3,1.8,3.6,5.3,2.7 "Adjusts Temperature During " "Sleeping Hours" ...

  15. " Million Housing Units, Final...

    U.S. Energy Information Administration (EIA) Indexed Site

    ... of Programmable Thermostat" "Reduces Temperature During Day" "Yes",22.1,8,5.8,3.3,3.4,1.5 "No",19.6,7,5.4,2.9,3,1.2 "Reduces Temperature During " "Sleeping Hours" ...

  16. " Million Housing Units, Final...

    U.S. Energy Information Administration (EIA) Indexed Site

    ... of Programmable Thermostat" "Reduces Temperature During Day" "Yes",22.1,3.7,5.3,7.2,5.9 "No",19.6,3.3,4.9,6.4,4.9 "Reduces Temperature During " "Sleeping Hours" ...

  17. " Million Housing Units, Final...

    U.S. Energy Information Administration (EIA) Indexed Site

    ... of Programmable Thermostat" "Reduces Temperature During Day" "Yes",22.1,17.5,1.3,1,1.5,0.7 "No",19.6,15.3,1.2,0.8,1.7,0.6 "Reduces Temperature During " "Sleeping Hours" ...

  18. " Million Housing Units, Final...

    U.S. Energy Information Administration (EIA) Indexed Site

    ... of Programmable Thermostat" "Reduces Temperature During Day" "Yes",22.1,3.9,7.1,3.9,4.2,3 "No",19.6,4.2,6.8,3.2,2.9,2.4 "Reduces Temperature During " "Sleeping Hours" ...

  19. " Million Housing Units, Final...

    U.S. Energy Information Administration (EIA) Indexed Site

    ... of Programmable Thermostat" "Adjusts Temperature During Day" "When No One is Home" ...4,0.6,0.8,0.3,0.5,1.5,1.1,0.4 "Adjusts Temperature During " "Sleeping Hours" ...

  20. " Million Housing Units, Final...

    U.S. Energy Information Administration (EIA) Indexed Site

    ... of Programmable Thermostat" "Adjusts Temperature During Day" "When No One is Home" ...0.5,0.2,"Q",0.3,0.3,1,0.3,"Q" "Adjusts Temperature During " "Sleeping Hours" ...

  1. Associative list processing unit

    DOE Patents [OSTI]

    Hemmert, Karl Scott; Underwood, Keith D.

    2013-01-29

    An associative list processing unit and method comprising employing a plurality of prioritized cell blocks and permitting inserts to occur in a single clock cycle if all of the cell blocks are not full. Also, an associative list processing unit and method comprising employing a plurality of prioritized cell blocks and using a tree of prioritized multiplexers descending from the plurality of cell blocks.

  2. High temperature turbine engine structure

    DOE Patents [OSTI]

    Boyd, Gary L. (Tempe, AZ)

    1990-01-01

    A high temperature turbine engine includes a hybrid ceramic/metallic rotor member having ceramic/metal joint structure. The disclosed joint is able to endure higher temperatures than previously possible, and aids in controlling heat transfer in the rotor member.

  3. Antenna unit and radio base station therewith

    DOE Patents [OSTI]

    Kuwahara, Mikio; Doi, Nobukazu; Suzuki, Toshiro; Ishida, Yuji; Inoue, Takashi; Niida, Sumaru

    2007-04-10

    Phase and amplitude deviations, which are generated, for example, by cables connecting an array antenna of a CDMA base station and the base station, are calibrated in the baseband. The base station comprises: an antenna apparatus 1; couplers 2; an RF unit 3 that converts a receive signal to a baseband signal, converts a transmit signal to a radio frequency, and performs power control; an A/D converter 4 for converting a receive signal to a digital signal; a receive beam form unit 6 that multiplies the receive signal by semi-fixed weight; a despreader 7 for this signal input; a time-space demodulator 8 for demodulating user data; a despreader 9 for probe signal; a space modulator 14 for user data; a spreader 13 for user signal; a channel combiner 12; a Tx calibrater 11 for controlling calibration of a signal; a D/A converter 10; a unit 16 for calculation of correlation matrix for generating a probe signal used for controlling an Rx calibration system and a TX calibration system; a spreader 17 for probe signal; a power control unit 18; a D/A converter 19; an RF unit 20 for probe signal; an A/D converter 21 for signal from the couplers 2; and a despreader 22.

  4. Novel Energy Conversion Equipment for Low Temperature Geothermal...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Novel Energy Conversion Equipment for Low Temperature Geothermal Resources Jay Kohler Eric Minor Johnson Controls, Inc. Geothermal Energy Production from Low Temperature Resources ...

  5. Low-Temperature Hydrocarbon/CO Oxidation Catalysis in Support...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    More Documents & Publications Low-Temperature HydrocarbonCO Oxidation Catalysis in Support of HCCI Emission Control Low-Temperature HydrocarbonCO Oxidation Catalysis in Support ...

  6. Light Duty Diesels in the United States - Some Perspectives | Department of

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Energy Emission Control Technology Review Update on Diesel Exhaust Emission Control Technology and Regulations Light Duty Diesels in the United States - Some Perspectives

  7. Rooftop unit embedded diagnostics: Automated fault detection and diagnostics (AFDD) development, field testing and validation

    SciTech Connect (OSTI)

    Katipamula, Srinivas; Kim, Woohyun; Lutes, Robert G.; Underhill, Ronald M.

    2015-09-30

    This report documents the development, testing and field validation of the integrated AFDD and advanced rooftop unit (RTU) controls using a single controller in buildings.

  8. Voltage verification unit

    DOE Patents [OSTI]

    Martin, Edward J. (Virginia Beach, VA)

    2008-01-15

    A voltage verification unit and method for determining the absence of potentially dangerous potentials within a power supply enclosure without Mode 2 work is disclosed. With this device and method, a qualified worker, following a relatively simple protocol that involves a function test (hot, cold, hot) of the voltage verification unit before Lock Out/Tag Out and, and once the Lock Out/Tag Out is completed, testing or "trying" by simply reading a display on the voltage verification unit can be accomplished without exposure of the operator to the interior of the voltage supply enclosure. According to a preferred embodiment, the voltage verification unit includes test leads to allow diagnostics with other meters, without the necessity of accessing potentially dangerous bus bars or the like.

  9. Associative list processing unit

    DOE Patents [OSTI]

    Hemmert, Karl Scott; Underwood, Keith D

    2014-04-01

    An associative list processing unit and method comprising employing a plurality of prioritized cell blocks and permitting inserts to occur in a single clock cycle if all of the cell blocks are not full.

  10. " Million Housing Units, Final...

    U.S. Energy Information Administration (EIA) Indexed Site

    2 Water Heating in U.S. Homes, by OwnerRenter Status, 2009" " Million Housing Units, ...","Own","Rent","Own","Rent","Own","Rent" "Water Heating" "Total Homes",113.6,76.5,37.1,63....

  11. " Million Housing Units, Final...

    U.S. Energy Information Administration (EIA) Indexed Site

    Water Heating in U.S. Homes, by Census Region, 2009" " Million Housing Units, Final" ,,"Census Region" ,"Total U.S.1 (millions)" ,,"Northeast","Midwest","South","West" "Water ...

  12. " Million Housing Units, Final...

    U.S. Energy Information Administration (EIA) Indexed Site

    6 Water Heating in U.S. Homes, by Climate Region, 2009" " Million Housing Units, Final" ... Cold","Mixed- Humid","Mixed-Dry" "Water Heating",,"Cold",,"Hot-Dry","Hot-Humid","M...

  13. " Million Housing Units, Final...

    U.S. Energy Information Administration (EIA) Indexed Site

    5 Water Heating in U.S. Homes, by Household Income, 2009" " Million Housing Units, Final" ... to 119,999","120,000 or More" "Water Heating" "Total Homes",113.6,23.7,27.5,21....

  14. " Million Housing Units, Final...

    U.S. Energy Information Administration (EIA) Indexed Site

    3 Water Heating in U.S. Homes, by Year of Construction, 2009" " Million Housing Units, ... to 1989","1990 to 1999","2000 to 2009" "Water Heating" "Total Homes",113.6,14.4,5.2,13.5...

  15. United States Government

    Office of Environmental Management (EM)

    cr--ceut w.:3 i-Kun: TO:202 586 1660 P.002006 DOE F 1325. EFG (07.PO) United States Government Department of Energy memorandum DATE: September 24, 2004 Audit Report Number:...

  16. United States Nuclear Tests

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    ... Two nuclear weapons that the United States exploded over Japan ending World War II are not listed. These detonations were not "tests" in the sense that they were conducted to prove ...

  17. Second United Nations

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Nations . DISCLAIMER This report was prepared a s an account of work sponsored by an agency of the United States Government. Neither t h e United States Government nor any agency thereof, nor any of their employees, make any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Reference herein

  18. Preliminary Field Evaluation of Mercury Control Using Combustion Modifications

    SciTech Connect (OSTI)

    V. Lissianski; P. Maly; T. Marquez

    2005-01-22

    In this project EER conducted a preliminary field evaluation of the integrated approach for mercury (Hg) and NO{sub x} control. The approach enhanced the 'naturally occurring' Hg capture by fly ash through combustion optimization, increasing carbon in ash content, and lowering ESP temperature. The evaluation took place in Green Station Units 1 and 2 located near Henderson, Kentucky and operated by Western Kentucky Energy. Units 1 and 2 are equipped with cold-side ESPs and wet scrubbers. Green Station Units 1 and 2 typically fire two types of fuel: a bituminous coal and a blend of bituminous coals based on availability. Testing of Hg emissions in Unit 2 without reburning system in operation and at minimum OFA demonstrated that efficiencies of Hg reduction downstream of the ESP were 30-40%. Testing also demonstrated that OFA system operation at 22% air resulted in 10% incremental increase in Hg removal efficiency at the ESP outlet. About 80% of Hg in flue gas at ESP outlet was present in the oxidized form. Testing of Hg emissions under reburning conditions showed that Hg emissions decreased with LOI increase and ESP temperature decrease. Testing demonstrated that maximum Hg reduction downstream of ESP was 40-45% at ESP temperatures higher than 300 F and 60-80% at ESP temperatures lower than 300 F. The program objective to demonstrate 80% Hg removal at the ESP outlet has been met.

  19. Water heater control module

    DOE Patents [OSTI]

    Hammerstrom, Donald J

    2013-11-26

    An advanced electric water heater control system that interfaces with a high temperature cut-off thermostat and an upper regulating thermostat. The system includes a control module that is electrically connected to the high-temperature cut-off thermostat and the upper regulating thermostat. The control module includes a switch to open or close the high-temperature cut-off thermostat and the upper regulating thermostat. The control module further includes circuitry configured to control said switch in response to a signal selected from the group of an autonomous signal, a communicated signal, and combinations thereof.

  20. " Million Housing Units, Final"

    U.S. Energy Information Administration (EIA) Indexed Site

    ... Temperature During Day" "When No One is Home" "Yes",19.1,4.5,2.8,1.1,0.5,0.4,0.8,1.7,0.5,0.9,0.3 "No",13.3,3.6,2.3,0.9,0.4,0.3,0.6,1.3,0.4,0.5,0.3 "Adjusts Temperature During ...

  1. " Million Housing Units, Final"

    U.S. Energy Information Administration (EIA) Indexed Site

    ... "Adjusts Temperature During Day" "When No One is Home" "Yes",19.1,1.9,3.1,3.5,2.9,2.2,1.7,3.9,1.4 "No",13.3,1.8,2.3,2.7,1.7,1.6,1,2.3,1.3 "Adjusts Temperature During " ...

  2. " Million Housing Units, Final...

    U.S. Energy Information Administration (EIA) Indexed Site

    ... "Adjusts Temperature During Day" "When No One is Home" "Yes",19.1,2.5,0.4,0.2,0.2,2.1,0.7,0.6,0.8 "No",13.3,1.8,0.2,0.1,0.1,1.6,0.3,0.7,0.5 "Adjusts Temperature During " ...

  3. " Million Housing Units, Final...

    U.S. Energy Information Administration (EIA) Indexed Site

    ... Thermostat" "Reduces Temperature During Day" "Yes",22.1,2.3,0.7,2.3,2,3.2,3.6,4.1,4.1 "No",19.6,2.1,0.7,2.2,2.2,2.7,2.9,3.1,3.7 "Reduces Temperature During " "Sleeping Hours" ...

  4. " Million Housing Units, Final...

    U.S. Energy Information Administration (EIA) Indexed Site

    ... "Reduces Temperature During Day" "Yes",22.1,5.3,3.6,1.3,0.7,0.5,1.1,1.6,0.4,0.9,0.3 "No",19.6,4.9,3.3,1.2,0.8,0.4,0.9,1.6,0.5,0.8,0.3 "Reduces Temperature During " ...

  5. " Million Housing Units, Final...

    U.S. Energy Information Administration (EIA) Indexed Site

    ... Thermostat" "Reduces Temperature During Day" "Yes",22.1,2.2,3.4,3.9,3.4,2.6,1.9,4.6,1.9 "No",19.6,2.7,3.9,3.8,2.7,2.2,1.3,3,2 "Reduces Temperature During " "Sleeping Hours" ...

  6. " Million Housing Units, Final...

    U.S. Energy Information Administration (EIA) Indexed Site

    ... Thermostat" "Reduces Temperature During Day" "Yes",22.1,3.7,1,0.5,0.5,2.7,1.3,0.6,0.8 "No",19.6,3.3,0.6,0.3,0.3,2.7,1,1,0.8 "Reduces Temperature During " "Sleeping Hours" ...

  7. " Million Housing Units, Final...

    U.S. Energy Information Administration (EIA) Indexed Site

    ... "Reduces Temperature During Day" "Yes",22.1,18.5,3.6,16.2,1.3,1,0.3,0.4,0.7,0.4,1.2,0.6,"Q" "No",19.6,15.8,3.8,14,1.3,0.8,0.4,0.2,0.6,0.3,1.3,0.5,"Q" "Reduces Temperature During " ...

  8. " Million Housing Units, Final...

    U.S. Energy Information Administration (EIA) Indexed Site

    ... Temperature During Day" "When No One is Home" "Yes",19.1,4.3,1.7,0.6,0.2,0.4,1.1,0.8,0.3,2.6,2.2,0.5 "No",13.3,2.7,1,0.4,0.2,0.3,0.6,0.3,0.3,1.7,1.5,0.2 "Adjusts Temperature ...

  9. " Million Housing Units, Final...

    U.S. Energy Information Administration (EIA) Indexed Site

    ... Thermostat" "Adjusts Temperature During Day" "When No One is Home" "Yes",19.1,3.3,6.4,3.3,3.5,2.6 "No",13.3,2.7,4.4,2.4,2.3,1.6 "Adjusts Temperature During " "Sleeping Hours" ...

  10. " Million Housing Units, Final...

    U.S. Energy Information Administration (EIA) Indexed Site

    ... "Reduces Temperature During Day" "Yes",22.1,5.9,2.2,1.1,0.5,0.6,1.1,0.7,0.4,3.7,2.6,1.1 "No",19.6,4.9,1.6,0.8,0.4,0.4,0.8,0.4,0.4,3.3,2.7,0.7 "Reduces Temperature During " ...

  11. " Million Housing Units, Final...

    U.S. Energy Information Administration (EIA) Indexed Site

    ... "Adjusts Temperature During Day" "When No One is Home" "Yes",19.1,1.3,0.4,1.7,1.6,2.7,3.4,4,4.1 "No",13.3,0.8,0.4,1.2,1.4,2,2.1,2.5,3 "Adjusts Temperature During " ...

  12. " Million Housing Units, Final...

    U.S. Energy Information Administration (EIA) Indexed Site

    ... Thermostat" "Adjusts Temperature During Day" "When No One is Home" "Yes",19.1,15.5,1,0.5,1.5,0.6 "No",13.3,10.6,0.7,0.4,1.3,0.4 "Adjusts Temperature During " "Sleeping Hours" ...

  13. United States Environmental Monitoring

    Office of Legacy Management (LM)

    EPA 60014-91/030 Environmental Protection Systems Laboratory DOE/DP00539-063 Agency P.O. Box 93478 Las Vegas NV 891 93-3478 Research and Development Offsite Environmental Monitoring Report: 1 - 3 5 Radiation Monitorina Around * / (- P 7 1 United States ~ u c l g a r Test Areas Calendar Year 1990 This page intentionally left blank EPN60014-90 DOWDP Offsite Environmental Monitoring Report: Radiation Monitoring Around United States Nuclear Test Areas, Calendar Year 1990 Contributors: D.J. Chaloud,

  14. Promising Technology: High-Efficiency Rooftop Units

    Broader source: Energy.gov [DOE]

    High-efficiency rooftop air conditioning units (RTUs) can significantly reduce heating, cooling, and ventilation energy consumption. High efficiency RTUs incorporate variable speed controls to minimize fan and compressor energy while capturing and reusing heat, cold, and humidity from a building’s exhaust air.

  15. Electric vehicle climate control

    SciTech Connect (OSTI)

    Dauvergne, J.

    1994-04-01

    EVs have insufficient energy sources for a climatic comfort system. The heat rejection of the drivetrain is dispersed in the vehicle (electric motor, batteries, electronic unit for power control). Its level is generally low (no more than 2-kW peaks) and variable according to the trip profile, with no heat rejection at rest and a maximum during regenerative braking. Nevertheless, it must be used for heating. It is not realistic to have the A/C compressor driven by the electric traction motor: the motor does not operate when the vehicle is at rest, precisely when maximum cooling power is required. The same is true for hybrid vehicles during electric operation. It is necessary to develop solutions that use stored onboard energy either from the traction batteries or specific storage source. In either case, it is necessary to design the climate control system to use the energy efficiently to maximize range and save weight. Heat loss through passenger compartment seals and the walls of the passenger compartment must be limited. Plastic body panes help to reduce heat transfer, and heat gain is minimized with insulating glazing. This article describes technical solutions to solve the problem of passenger thermal comfort. However, the heating and A/C systems of electrically operated vehicles may have marginal performance at extreme outside temperatures.

  16. United Nations | Open Energy Information

    Open Energy Info (EERE)

    United Nations Interregional Crime and Justice Research Institute (UNICRI) United Nations International Research and Training Institute for the Advancement of Women (UN-INSTRAW)...

  17. S. 276: A Bill to amend the Surface Mining Control and Reclamation Act of 1977 to improve control of acid mine drainage, and for other purposes. Introduced in the Senate of the United States, One Hundred Third Congress, First Session, February 2, 1993

    SciTech Connect (OSTI)

    Not Available

    1993-01-01

    This bill amends the Surface Mining Control and Reclamation Act of 1977 to improve control of acid mine drainage. State use of funds is addressed.

  18. " Million Housing Units, Final...

    U.S. Energy Information Administration (EIA) Indexed Site

    ... Temperature During Day" "Yes",22.1,7.2,4,0.5,0.8,1.3,0.5,0.8,0.8,0.4,0.4,2.4,1.9,0.6 "No",19.6,6.4,3.6,0.5,0.9,1.2,0.5,0.6,0.9,0.3,0.5,1.9,1.3,0.6 "Reduces Temperature During ...

  19. Export Control - ITER (September 2012

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Export Control - ITER (September 2012) a) The Seller and Company agree to adhere to and be responsible for their own compliance of all United States export control laws and...

  20. Model-free adaptive control of supercritical circulating fluidized-bed boilers

    DOE Patents [OSTI]

    Cheng, George Shu-Xing; Mulkey, Steven L

    2014-12-16

    A novel 3-Input-3-Output (3.times.3) Fuel-Air Ratio Model-Free Adaptive (MFA) controller is introduced, which can effectively control key process variables including Bed Temperature, Excess O2, and Furnace Negative Pressure of combustion processes of advanced boilers. A novel 7-input-7-output (7.times.7) MFA control system is also described for controlling a combined 3-Input-3-Output (3.times.3) process of Boiler-Turbine-Generator (BTG) units and a 5.times.5 CFB combustion process of advanced boilers. Those boilers include Circulating Fluidized-Bed (CFB) Boilers and Once-Through Supercritical Circulating Fluidized-Bed (OTSC CFB) Boilers.

  1. Active Diesel Emission Control Technology for Transport Refrigeration...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Transport Refrigeration Units Active Diesel Emission Control Technology for Transport Refrigeration Units This project discusses a CARB Level 2+ verified active regeneration ...

  2. Thermal insulated glazing unit

    DOE Patents [OSTI]

    Selkowitz, S.E.; Arasteh, D.K.; Hartmann, J.L.

    1988-04-05

    An improved insulated glazing unit is provided which can attain about R5 to about R10 thermal performance at the center of the glass while having dimensions about the same as those of a conventional double glazed insulated glazing unit. An outer glazing and inner glazing are sealed to a spacer to form a gas impermeable space. One or more rigid, non-structural glazings are attached to the inside of the spacer to divide the space between the inner and outer glazings to provide insulating gaps between glazings of from about 0.20 inches to about 0.40 inches. One or more glazing surfaces facing each thermal gap are coated with a low emissivity coating. Finally, the thermal gaps are filled with a low conductance gas such as krypton gas. 2 figs.

  3. Thermal insulated glazing unit

    DOE Patents [OSTI]

    Selkowitz, Stephen E. (Piedmont, CA); Arasteh, Dariush K. (Oakland, CA); Hartmann, John L. (Seattle, WA)

    1991-01-01

    An improved insulated glazing unit is provided which can attain about R5 to about R10 thermal performance at the center of the glass while having dimensions about the same as those of a conventional double glazed insulated glazing unit. An outer glazing and inner glazing are sealed to a spacer to form a gas impermeable space. One or more rigid, non-structural glazings are attached to the inside of the spacer to divide the space between the inner and outer glazings to provide insulating gaps between glazings of from about 0.20 inches to about 0.40 inches. One or more glazing surfaces facing each thermal gap are coated with a low emissivity coating. Finally, the thermal gaps are filled with a low conductance gas such as krypton gas.

  4. Phasor Measurement Units

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Phasor Measurement Units - Sandia Energy Energy Search Icon Sandia Home Locations Contact Us Employee Locator Energy & Climate Secure & Sustainable Energy Future Stationary Power Energy Conversion Efficiency Solar Energy Wind Energy Water Power Supercritical CO2 Geothermal Natural Gas Safety, Security & Resilience of the Energy Infrastructure Energy Storage Nuclear Power & Engineering Grid Modernization Battery Testing Nuclear Fuel Cycle Defense Waste Management Programs Advanced

  5. stochastic unit commitment engine

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    unit commitment engine - Sandia Energy Energy Search Icon Sandia Home Locations Contact Us Employee Locator Energy & Climate Secure & Sustainable Energy Future Stationary Power Energy Conversion Efficiency Solar Energy Wind Energy Water Power Supercritical CO2 Geothermal Natural Gas Safety, Security & Resilience of the Energy Infrastructure Energy Storage Nuclear Power & Engineering Grid Modernization Battery Testing Nuclear Fuel Cycle Defense Waste Management Programs Advanced

  6. United States Government

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    * (08-93) United States Government Department of Energy Memorandum OFFICE OF INSPECTOR GENERAL DATE: November 9, 2005 REPLY TO ATTN OF: IG-34 (A05TG036) Audit Report No.: OAS-L-06-01 SUBJECT: Report on Audit of "The Department of Energy's Radio Communications Systems" TO: Chief Information Officer, IM-1 INTRODUCTION AND OBJECTIVE The Department of Energy's (Department) complex-wide radio systems infrastructure supports and facilitates activities such as site emergency response,

  7. UNITED STATES GOVERNMENT

    Office of Legacy Management (LM)

    '.... '|le , * f C. Office Memorandum * UNITED STATES GOVERNMENT .-- J TO ' Leo Graup, Chief, DATE: September 29, 1958 Property Management Branch rFi0 : M. S. Weinstein Industrial Hygiene Branch, HASL SUBJBT: SURVEY AT HAIST PROPETIY SYMBOL: HSH:MSW. Thisl property was purchased during MED operation and used as a dumping ground for refinery residues generated by Linde Air Products during their period of participation in the refinery operations program. \It 2 consists of 10 acres in addition to a

  8. United States Government

    Office of Legacy Management (LM)

    D;F&g,8 C-r-I 3-3 .*. United States Government . memorandum DATE: JUNZO 1994 -... REPLY TO A?TN OF: EM-421 (W. A. Williams, 903-8149) Authority Determination -- Combustion Engineering Site, Windsor, SUBJECT: Connecticut To' The File The attached review, documents the basis for determining whether the Department of Energy (DOE) has authority for taking remedial action at the Combustion Engineering (CE) Site in Windsor, Connecticut, under the Formerly Utilized Sites Remedial Action Program. CE

  9. Performance of Gas-Engine Driven Heat Pump Unit

    SciTech Connect (OSTI)

    Abdi Zaltash; Randy Linkous; Randall Wetherington; Patrick Geoghegan; Ed Vineyard; Isaac Mahderekal; Robert Gaylord

    2008-09-30

    Air-conditioning (cooling) for buildings is the single largest use of electricity in the United States (U.S.). This drives summer peak electric demand in much of the U.S. Improved air-conditioning technology thus has the greatest potential impact on the electric grid compared to other technologies that use electricity. Thermally-activated technologies (TAT), such as natural gas engine-driven heat pumps (GHP), can provide overall peak load reduction and electric grid relief for summer peak demand. GHP offers an attractive opportunity for commercial building owners to reduce electric demand charges and operating expenses. Engine-driven systems have several potential advantages over conventional single-speed or single-capacity electric motor-driven units. Among them are variable speed operation, high part load efficiency, high temperature waste heat recovery from the engine, and reduced annual operating costs (SCGC 1998). Although gas engine-driven systems have been in use since the 1960s, current research is resulting in better performance, lower maintenance requirements, and longer operating lifetimes. Gas engine-driven systems are typically more expensive to purchase than comparable electric motor-driven systems, but they typically cost less to operate, especially for commercial building applications. Operating cost savings for commercial applications are primarily driven by electric demand charges. GHP operating costs are dominated by fuel costs, but also include maintenance costs. The reliability of gas cooling equipment has improved in the last few years and maintenance requirements have decreased (SCGC 1998, Yahagi et al. 2006). Another advantage of the GHP over electric motor-driven is the ability to use the heat rejected from the engine during heating operation. The recovered heat can be used to supplement the vapor compression cycle during heating or to supply other process loads, such as water heating. The use of the engine waste heat results in greater operating efficiency compared to conventional electric motor-driven units (SCGC 1998). In Japan, many hundreds of thousands of natural gas-driven heat pumps have been sold (typically 40,000 systems annually) (Yahagi et al. 2006). The goal of this program is to develop dependable and energy efficient GHPs suitable for U.S. commercial rooftop applications (the single largest commercial product segment). This study describes the laboratory performance evaluation of an integrated 10-ton GHP rooftop unit (a 900cc Daihatsu-Aisin natural gas engine) which uses R410A as the refrigerant (GEDAC No.23). ORNL Thermally-Activated Heat Pump (TAHP) Environmental Chambers were used to evaluate this unit in a controlled laboratory environment.

  10. Temperature-independent sensors based on perovskite-type oxides

    SciTech Connect (OSTI)

    Zaza, F.; Frangini, S.; Masci, A.; Leoncini, J.; Pasquali, M.; Luisetto, I.; Tuti, S.

    2014-06-19

    The need of energy security and environment sustainability drives toward the development of energy technology in order to enhance the performance of internal combustion engines. Gas sensors play a key role for controlling the fuel oxygen ratio and monitoring the pollution emissions. The perovskite-type oxides can be synthesized for an extremely wide variety of combinations of chemical elements, allowing to design materials with suitable properties for sensing application. Lanthanum strontium ferrites, such as La{sub 0.7}Sr{sub 0.3}FeO{sub 3}, are suitable oxygen sensing materials with temperature-independence conductivity, but they have low chemical stability under reducing conditions. The addition of aluminum into the perovskite structure improves the material properties in order to develop suitable oxygen sensing probes for lean burn engine control systems. Perovskite-type oxides with formula (La{sub 0.7}Sr{sub 0.3})(Al{sub x}Fe{sub 1?x})O{sub 3} was synthesized by the citrate-nitrate combustion synthesis method. XRD analyses, show that it was synthesized a phase-pure powder belonging to the perovskite structure. Aluminum affects both the unit cell parameters, by shrinking the unit cell, and the powder morphology, by promoting the synthesis of particles with small crystallite size and large specific surface area. The partial substitution of iron with aluminum improves the chemical stability under reducing gas conditions and modulates the oxygen sensitivity by affecting the relative amount of Fe{sup 4+} and Fe{sup 3+}, as confirmed from TPR profiles. In the same time, the addition of aluminum does not affects the temperature-independent properties of lanthanum strontium ferrites. Indeed, the electrical measurements show that (La{sub 0.7}Sr{sub 0.3})(Al{sub x}Fe{sub 1?x})O{sub 3} perovskites have temperature-independence conductivity from 900 K.

  11. Good Energies (United Kingdom) | Open Energy Information

    Open Energy Info (EERE)

    Energies (United Kingdom) Jump to: navigation, search Logo: Good Energies (United Kingdom) Name: Good Energies (United Kingdom) Address: 2-5 Old Bond Street Place: London, United...

  12. UNITED STATES DEPARTMENT OF ENERGY (DOE) Scientific and Technical...

    Office of Scientific and Technical Information (OSTI)

    ... Utility Authority Organization DOE F 241.3 UNITED ... Recipients and Non-M&OM&I Contractors OMB Control ... 241.1-1A, Guide to the Management of Scientific and ...

  13. Fuel Cell Control Ltd | Open Energy Information

    Open Energy Info (EERE)

    Control Ltd Jump to: navigation, search Name: Fuel Cell Control Ltd Place: Slinfold, United Kingdom Zip: RH13 0SZ Product: Initially founded to develop fuel cell control systems,...

  14. United States Patent: 7896053

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Patent: 7896053 http://patft.uspto.gov/...p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.htm&r=1&f=G&l=50&s1=7,896,053.PN.&OS=PN/7,896,053&RS=PN[6/20/2011 12:30:03 PM] ( 1 of 1 ) United States Patent 7,896,053 Simandl , et al. March 1, 2011 Non-destructive component separation using infrared radiant energy Abstract A method for separating a first component and a second component from one another at an adhesive bond interface between the first component and second component.

  15. United States Government

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    (12-84) , United States Government E e - ' i 3 - Department of Energy memorandum DATE: JUL 0 1 1988 ER-30 REPLY TO ATTN OF: S U B J E C T : Accomplishmepts o f Long-Terin Research and Development J>P's jQ . Executive D irector, O ffice o f Energy Research, ER-1 I Per your request, attached is a summary o f the accomplishments in long-term -4-^ research and development during the current Administration. Materials were provided by a ll o f the Associate Directors o f E R and the Offices o f

  16. United States Government

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    30/02 WED 09:58 FAX 423 241 3897 OIG -.- +-+ HQ ]002 rFG (07-;1) United States Government Department of Energy Memorandum DATE: October 29, 2002 REPLY TO 1G-36 (A02DN028) Audit Report No.: OAS-L-03-01 ATTN OF; SUBJECT: Audit of Procurement at the Rocky Flats Environmental Technology Site TO: Eugene Schmitt, Manager, Rocky Flats Field Office ' INTRODUCTION AND OBJECTIVE The Department of Energy (Department) and its site contractor, Kaiser-Hill Company, LLC (Kaiser-Hill), contracted in January

  17. United States Government

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    12.'6/0.2 ...... 13:27 FAX 301 903 4656 CAPITAL REGION 1]003 OE F f325.8 EFG (07.-0) United States Government Deparment of Energy memorandum DATE: 05 2002 REPLY TO: IG-34 (A02AT015) Audit Report Numbser: OAS-L-03-04 SUBJECT: Follow-Up Audit on Internet Privacy TO: Chief Information Officer, IM-1 The purpose of this report is to inform you of the results of our follow-up review of the Department of Energy's Internet Privacy initiatives. This review was performed from June 2002 to October 2002 at

  18. United States Government

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    03/02 TUE 08:59 FAX 423 241 3897 OIG *-* HQ 00o2 DOE F 132,.8 W.I: ((07.9u) United States Government Department of Energy Memorandum DATE: December 2, 2002 REPLY TO REPLY TO -36 (A02SR013) Audit Report No.: OAS-L-03-07 ATTN OF: SUBJECT: Audit of Subcontracting Practices at the Savannah River Site TO: Jeffrey M. Allison, Acting Manager, Savannah River Operations Office INTRODUCTION AND OBJECTIVE The Department of Energy (Department) has contracted with Westinghouse Savannah River Company, LLC

  19. United States Government

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    7/03 FRI 08:50 FAX 865 576 3213 OAK RIDGE AUDIT -+44 AIGA o001 10/16/03. THU 15:52 FAX 423 241 3897 OIG -- * ELMORE I001 United States Government Department of Eney memorandum DATE: October 1.6, 2003 b REPLY TO ATTNTO: IG-36 (A030R013) Audit Report No.: OAS-L-04-02 SUBJECT: Waste Pits and Silos Remediation at the Femald Closure Project To: Robert Wazther, Manager, Ohio Field Office INTRODUCTION AND OBJECTIVF In November 2000, the Ohio Field Office awarded a contract to Fluor Fernald Inc.,

  20. United States Government

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    .. a . r-z . "*& ., . .. uoi UA o. --.- flI gj UUX DOE F 1325.8 (08.93) United States Government Department of Ene memorandum DATE: August 19, 2004 Audit Report Number: OAS-L-04-18 REPLY TO ATTN OF: IG-36 (A03IF009) SUBJECT: Audit of the "Revised Pit 9 Cleanup Project at the Idaho National Engineering and Environmental Laboratory" TO: Paul Golan, Acting Assistant Secretary, Office of Environmental Management INTRODUCTION AND OBJECTIVE The Idaho National Engineering and

  1. United States Government

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    7325.8 (08-93) United States Government Department of Energy Memorandum DATE: October 30,2008 Audit Report Nuniber: OAS-L-09-01 REPLY TO AITN OF: IG-30 (A08GT053) SUBJECT: Audit Report on "Review of the Department of Energy's Contract with AHTNA Government Services Corporation Contract No: DE-AC52-04NA25282" TO: Director, Office of Field Financial Management, NNSA INTRODUCTION AND OBJECTIVE The National Nuclear Security Administration (NNSA) awarded a general construction contract to

  2. United States Government Departmen

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    7/05 TUE 07:58 FAX 423 241 3897 OIG -** HQ @]002 DOE F 1325.8 (08-93) United States Government Departmen of Energy memorandum DATE: December 20, 2005 Audit Report Number: OAS-L-06-03 REPLY TO A1TN OF; IG-36 (A05SR025) SUBJECT: Audit of "Defense Waste Processing Facility Operations at the Savannah River Site" TO: Jeffrey M. Allison, Manager, Savannah River Operations Office INTRODUCTION AND OBJECTIVE The Department of Energy's (Department) Savannah River Site stores approximately 36

  3. United States Government Department

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    B.89) EFO (07-90) United States Government Department of Energ Memorandum SEP 24 20t DATE: REPLY TO: IG-34 (A04TG032) Audit Report No.: OAS-L-04-21 SUBJECT: Evaluation of "The Federal Energy Regulatory Commission's Cyber Security Program - 2004" TO: Chairman, Federal Energy Regulatory Commission The purpose of this report is to inform you of the results of our annual evaluation of the Federal Energy Regulatory Commission's unclassified cyber security program. This evaluation was

  4. United States Government

    Office of Legacy Management (LM)

    81278 United States Government Department of Energy memorandum - ?71 S.EP 23 F; i: 54 DATE: SEP 1 8 1991 REPLY TO ATTNOF: EM-421 (P. Blom, 3-8148) SUBJECT: Approved Categorical Exclusion for Removal Actions at Elza Gate, Tennessee TO: Lester K. Price, OR Attached is a copy of the approved Categorical Exclusion (CX) for removal of contaminated material at the Elza Gate site in Tennessee. The removal action involves the removal of radioactive contaminated soil and concrete as well as the removal

  5. United States Government

    Office of Legacy Management (LM)

    "- ~ .-A*" (MQ) EfG (07-W) United States Government rrla.g-a Department of Energy memorandum DATE: tlEC 1 F: l!??? REPLYTo EM-421 (W. A. W illiams , 903-8149) AJTN OF: SUBJECT: .Authorization for Remedial Action at the Former Chapman Valve Manufacturing Company fac ility , Indian Orchard, Massachusetts To' L. Price, O R The former Chapman Valve Manufacturing Comapany fac ility at 203 Hampshire Street, Indian Orchard, Massachusetts, is designated for remedial action under the Formerly

  6. United States Government

    Office of Legacy Management (LM)

    . v-w. ' ;H; (07.901 United States Government 0' ; Td 2, <.<~ Department of Energy ' m e m o randum DATE: REPLY TO Al-TN OF: EM-421 (W. A. W illiams, 903-8149) SUBJECT: Authorization for Remedial Action at Alba Craft Laboratory in Oxford, Ohio L. Price, OR TO: The former Alba Craft Laboratory site at lo-14 West Rose Avenue, Oxford, Ohio, is designated for remedial action under the Formerly Utilized Sites Remedial Action Program (FUSRAP). Dr. and M rs. Gilbert Pacey, of Oxford, Ohio, own

  7. United States Government

    Office of Legacy Management (LM)

    .8 - EFgzk3) United States Government tiemorandum 0 wt;? -J Department of Energy DATE: SEP 2 5 1992 REPLY TO Al-TN OF: EM-421 (W. A. W illiams, 903-8149) SUBJECT: Authorization for Remedial Action at Diamond Magnesium Site in Painesville, Ohio TO: L. Price, OR The former Diamond Magnesium Company site located at 720 Fairport-Nursery Road in Painesville, Ohio, is designated for remedial action under the Formerly Utilized Sites Remedial Action Program (FUSRAP). The site is owned by Uniroyal

  8. United States Government

    Office of Legacy Management (LM)

    UOEF 1325.8 (5831 , - a.. L . . L. . c ,, . . . t ,' <, .* -,. .--1^ a "-2 (J 7 , pe-;L, United States Government memorandum Departmen: of Energy DATEAUG 1 0 1984 REPLY TO Al-fN OF: NE-20 SUBJECT: Action Description Memorandum (ADM) Review: Wayne, New Jersey Proposed 1984 Remedial Actions at TO: File After reviewing all of the pertinent facts including the attached Action Description Memorandum (ADM), I have determined that the remedial action described in the subject ADM is an action

  9. United States Government DATE:

    Office of Legacy Management (LM)

    5oE(E;,8 ' 0 H .2+ L-1 United States Government DATE: MAR 0 8 1994 REPLY TO AlTN OF: EM-421 (W. A. Williams, 903-8149) SUBJECT: Authority Determination -- Former Herring-Hall-Marvin Safe Co., Hamilton, Ohio TO: The File The attached review documents the basis for determining whether the Department of Energy (DOE) has authority for taking remedial action at the former Herring-Hall-Marvin Safe Co. facility in Hamilton, Ohio, under the Formerly Utilized Sites Remedial Action Program (FUSRAP). The

  10. Uniter+ States Government

    Office of Legacy Management (LM)

    EFG (07-90) Uniter+ States Government ~L.aQ-i; Department of Energy inemorandum DATE: SEP 2 5 1992 REPLY TO Al-fN OF: EM-421 (W. A. W illiams, 903-8149) SUBJECT: Authorization for Remedial Action at the Former Dow Chemical Company Facility in M a d ison, Illinois TO: L. Price, OR The site of the Former Dow Chemical Company in M a d ison, Illinois, which is currently owned and operated by the Spectrulite Consortium, is designated for inclusion in the Formerly Utilized Sites Remedial Action

  11. United States Goveinment *

    Office of Legacy Management (LM)

    wx l ,320.o -. yt!$L, . : I __ United States Goveinment * -memorandum @95861 Department of Energy **J-E: OCT 0 8 19% REPLY TO ATfFd OF: EM-421 (W. A. Williams, 903-8149) [YfZ f;T ! i Fi.1 y: 29 - susJlEcr: Authorization for Remedial Action at Granite City Steel Site, Granite City, Illinois lo: Manager, DOE Oak Ridge Field Office This is to notify you that the Granite City Steel site in Granite City, Illinois, is designated for remedial action under the Formerly Utilized Sites Remedial Action

  12. * United States Government

    Office of Legacy Management (LM)

    -- DE;$r,e /q f-j * I3 - I * United States Government memorandum MAY 21 I991 DATE: REPLY TO Al-fN OF: 4ih55YhL Department of Energy JT:,i 5, f&A 0 ' - j4.~, ' -/ jl.a' \ A t -3 __..-_-. EM-421 SUBJECT: Elimination of the American Potash and Chemical Site The File TO: I have reviewed the attached site summary and elimination recommendation for the American Potash and Chemical Company Site in West Hanover, Massachusetts. I have determined that there is little likelihood of radioactive

  13. - United States Government

    Office of Legacy Management (LM)

    8 my EFG (07.90) . - United States Government . * Department of. Energy * inemorandum DATE: DEC :! ;j 1993 REPLY TO ATTN OF: EM-421 (W.'A. W illiams, 903-8149) : NY 41 I .' 41 G I? SUBJECT: Elimination of the T itanium Alloy Manufacturing Co., Niagara Falls, New York TO: The F ile I have reviewed the attached site. summary and elimination recommendation for the T itanium Alloy Manufacturing Company. I have determined that the potential for radiological contamination is low because of the lim

  14. . United States Government

    Office of Legacy Management (LM)

    ,:n5.5.8 ,849, EfG pw, . United States Government DATE: AUG 2 i994 y#J;; EM-421 (W. A. Williams, 427-1719) sUBJECT: -Elimination of the Robbins & Myers Site, Springfield, Ohio 11179 I The File TO: I have reviewed the attached elimination recommendation and the original historical records for the Myers & Robbins facility in Springfield, Ohio. I have determined that there is little likelihood of radioactive contamination at these sites. The only record of activity at this site by

  15. ; United States Government

    Office of Legacy Management (LM)

    Don F 1328.8 . . .449J ' Em wm ; United States Government , % - memorandum L c*m Al.)G 2 9 a34 yz;; EM-421 (If. A. Willlams, 427-1719) lq,iMAL Department of Energy m5 MA, \i& SUBJECT: Elimination of the Sites from the Formerly Utllized Sites Remedial A&Ion Prograa ' a The File In 1990, with the assistance of Hr. Doug Tonkay and Ms. Htchelle L&is, I reviewed a number of sites that had fomerly provided goods and/or services to the Fernald faclllty as subcontractors. For 24 of.these

  16. UNITED STATES GOVERKMENT

    Office of Legacy Management (LM)

    Ojice Memornndz~nz 0 UNITED STATES GOVERKMENT By application dated ;!ay 11, 1959, as a~zen:ii:d Hay 25, 1959, the a--T+- I-r-- cant requests that its license SW-33 be amend,ed to authorizt? proced- ures for t>e CCLl-ect conversion of LT6 to '3$ and by applicaticn datzci June 29, 1959, a.3 n:odifizd July 15, 1059, the shipment of uranium rdioxide pellets. Based on our rexiew of the information finished by the applicant, it is hereby determined that the applicant is qualified, by training and

  17. UNITED STATES GOVERNMENT

    Office of Legacy Management (LM)

    Menxmmhmz 9 1 / UNITED STATES GOVERNMENT i TO : ThcFFles . mx.f I A. B. Piccct, +3lation section : DATE: .@.eti 16, 1949 SUBJECT: VISIT To HAVY OFfDHAlfCE DEPOT, EARIZ, B.J. FmmlTo ,sYmOL: DH:ARP . . : OnJuly 8,&g the uriterattendedameeting at the Navy Oxdnce Depot at Farle, Ii. J. for the purpose of advising the navy on i-adlatlon hazards involved In the dmping of contadnated AEC wastes at /?ea. " Presint were: J. Cook - Traffic & Transportation, AEC ~J.Moren- Utilifation, AEC ..J.

  18. Unite2 States Government

    Office of Legacy Management (LM)

    +39J t% (3740~ - Unite2 States Government m e m o randuin L3 DATE: AU6 3, 9 %g4 REPLY TO All-N OF: m -421 (U. A. W illiams, 427-1719) -. - >' SUBJECT: Elimination of the Sites from the Formerly Utilized Sites Remedial Action Program To' The File In 1990, with the assistance of Hr. Doug Toukay and Ms. M ichelle Landis, I reviewed a number of sites that had formerly provided goods and/or services to the Fernald facility as subcontractors. For 24 of.these sites, recouwndations were made to

  19. United States Goveinment

    Office of Legacy Management (LM)

    ,325.B jO8.93) United States Goveinment ~~~rntir-andu~rvi Depr?rtnient of Energy \L, IO' " 1' !ATE:' MAY i o 1995 ,' Kzb9. ":cz$ EM-421 (W.,A. Williams, 301-903-8149) SUBJECT: Records for the West Chicago Site .The File TO: After review.of the available r&rds concerning the former 'Lindsay Light and Chemical.Corhpany site in West Chicago, Illinois. I have determined that it is not necessary to transmit Department of Energy (DOE) records to the municipa,llty to inform public

  20. United States Government

    Office of Legacy Management (LM)

    DOE F t325.8 (s8s) Dl? l 36-z EFG (07-90) United States Government m e m o randum Department of Energy DATE: LUG 2 ' 3 1394 ",cl,'," EM-421 (W. A. W illiams, 427-1719) SUBJECT: Elimination of the Sites from the Formerly Utilized Sites Remedial Action Program To' The File In 1990, with the assistance of M r. Doug Tonkay and Ms. M ichelle Landis, I reviewed a number of sites that had formerly provided goods and/or services to the Fernald facility as subcontractors. For 24 of these sites,

  1. United States Government

    Office of Legacy Management (LM)

    ocy F 1325.8 rcro1 . 6Fo0?-001 w 2 3-q United States Government Department of Energ) ~mc DATE: AUG 3,9 1994 y$Jf EH-421 (W. A. Yllliams, 427-1719) MA. \tQ SUBJECT: _ Elirinrtion of the Sites froa the Formerly Utilized Sites Remedial Action Program TQ The File In 1990, with the assistance of Hr. Doug Tonkay and Hr. Nlchelle Landis, I reviewed a number of sites that had fomerly provided goods and/or services to the Fernald facility as subcontractors. For 24 of.these sites, recomendations were made

  2. United States Government

    Office of Legacy Management (LM)

    ooc F r325.8 imo, EFO ,ww United States Government memorandum Department of Energy -fw?w 81ua DATE: FEB 1 5 1991 l+Ks6 sUsJECT: Elimination of the Buflovak Company Site from FUSRAP ho: The File I have reiiewed the attached preliminary site summary and recommendation for the Buflovak Company site in Buffalo, New York. I have determined that there is little likelihood of contamination at this site. Based on the above, the Buflovak Company site is hereby eliminated from further consideration under

  3. United States Government

    Office of Legacy Management (LM)

    DOE F 1325.8 E&M&& +\A .wz United States Government Department of Energy DATE: RUG 3, 9 %g4 y;;;; EM-421 (W. A. W illiaas, 427-1719) "; :+ 1 SUBJECT: Elimination of the Sites from the Formerly Utilized Sites Remedial Action Program To' The File In 1990, with the assistance of M r. Doug Tohkay and Ms. M ichelle Landis, I reviewed a number of sites that had formerly provided goods and/or services to the Fernald facility as subcontractors. For 24 of.these sites, recomendations were

  4. United States Government

    Office of Legacy Management (LM)

    # Xx i' !325 8 I c&egJw, i&l d, 4 -1 United States Government Department of Energy DATE; AUG 3, 9 !gg4 I REPLYTo m-421 (W. A. Williams, 427-1719) sy I AlTN OF: SUBJECT: Elimination of the Sites from the Formerly Utilized Sites Remedial Action Program To' The File In 1990, with the assistance of Mr. Doug Tonkay and Ms. Nichelle Landis, I reviewed a number of sites that had formerly provided goods a&/or services to the Fernald facility as subcontractors. For 24 of these sites,

  5. United States Government

    Office of Legacy Management (LM)

    EFS (07-W United States Government memorandukn Department of Energy j ; I.-- ' -i;: /J DATE: j.gjG 2 9 1994 REPLY TO En-421 (W. A. Williams, 427-1719) AlTN OF: h p)\;--/ ;,;' J ( SUBJECT: Elimination of the Sites from the Formerly Utilized Sites Remedial Action Program To' The File In 1990, with the assistance of Ur. Doug Tonkay and Us. Michelle Landis, I reviewed a number of sites that had formerly provided goods and/or services to the Fernald facility as subcontractors. For 24 of.these sites,

  6. United States Government

    Office of Legacy Management (LM)

    I8 891 EFG (07.90) United States Government m e m o randum bepartrne% of Energy -P ' ; N. A *I Pi id : DATE: AUG 3, 9 1994 REPLY TO Al-iN OF: EM-421 (W. A. W illiams, 427-1719) r, )' \, ! c ' d, ' t ' 3 ' 2 -L SUBJECT: Elimination of the Sites from the Formerly Utilized Sites Remedial Action Program To' The File In 1990, with the assistance of M r. Doug Tonlsay and Ms. M ichelle Landis, I reviewed a nmber of sites that had formerly provided goods and/or services to the Fernald facility as

  7. United States Government

    Office of Legacy Management (LM)

    Z&Et,? y-p . c' )7q/ I cuq,~ United States Government Department of Energy memoranduin I " . : I ;/ ,I DATE: hufi 2 9 1594 \ ' - y:oTFq M-421 (W. A. Ylllius, 427-1719) ' ii Y - SIJWECT: Elimination of the Sites from the Formerly Utilfzed Sites Remedial Actjon Progru TO The File In 1990, with the assistance of Mr. reviewed a number of sites that had services to the Fernald facility as sites, recommendations were made to ___ _- _ consideration under Formerly Utiltzed Sites Remedial Action

  8. United States Government

    Office of Legacy Management (LM)

    D;il$;,8 p! A . I I& - ' z United States Government &mtrne&' of Energy DATE: &uG 3, 9 394 REPLY TO AITN OF: EH-421 (W. A. Williams, 427-1719) SUBJECT: Elimination of the Sites from the Formerly Utilized Sites Remedial Action Program To' The File In 1990, with the assistance of Mr. Doug Toukay and Ms. Michelle Landis, I reviewed a number of sites that had formerly provided goods and/or services to the Fernald facility as subcontractors. For 24 of.these sites, recommdations were

  9. United States Government

    Office of Legacy Management (LM)

    73258 18.89, /J" c. j _- /;I_ EFG (07.90) United States Government Department of Energy I memorandum W Y fir ,"1 ti2,ej ? r-l DATE: CE' .' 2 :12; REPLY TO AlTN OF: EM-421 (W. A. W illiams, 903-8149) b/fad; 0' \/A a5 SUBJECT: Elimination of the Sites from the Formerly Utilized Sites ReGbbial Action Program TO: The F ile I have reviewed the attached site summar recommendations for the following sites: ies and elimination '4B : M itts & Merrel Co., Saginaw, M ichigan North Carolina

  10. United States Government

    Office of Legacy Management (LM)

    COE F r31ffs (S-89) EFG (37-90) United States Government memorandum f;' "* 5 P ,A ~4&t&y Department o F7 q;' 3 j-1 - ("J 1 [--A Q ' f ' -\' ( --_-_ -- DATE: MAY 29 l%H R' ;J$ EM-421 SUBJECT: Elimination of the Radiation Applications Incorporated Site Tc: The File I have reviewed the attached site summary and elimination recommendation for the Radiation Applications Incorporated Site in New York City. I have determined that there is little likelihood of radioactive contamination

  11. United States Government

    Office of Legacy Management (LM)

    DOEF1325.8 P4 0 * 1 - 1 - Iq \ b- United States Government memorandum pJ .T\ \b Department of Energy DATE: OCT 9 1984 REPLY TO NE-20 All-N OF: .- Authorizations for Actions Under the Formerly Utilized Sites Remedial Action SUBJECT: Program (FUSRAP) at the St. Louis Airport Storage Site, St. Louis, MO. and the W. R. Grace Site at Curtis Bay, Md. To: J. LaGrone, Manager Oak Ridge Operations Office St. Louis Airport Storage Site, MO The House and Senate Reports for the Energy and Water Development

  12. United States Government

    Office of Legacy Management (LM)

    f&E F 1325.8 J ;rgy!w, United States Government m e m o randum 7-L 0 cI - 2, Department of Energy I~27 DATE: !-jEC -2 3 1293 REPLY TO ATTN OF: EM-421 (W. A. W illiams, 903-8149) SUBJECT: Elimination of the Sites from the Formerly Utilized Sites Remedial Action Program TO: The F ile I have reviewed the attached site summaries and elimination recommendations for the following sites: f' l M itts & Merrel Co., Saginaw, M ichigan l North Carolina State University, Raleigh, North Carolina l

  13. United States Government

    Office of Legacy Management (LM)

    69-39) EFG IO74oJ . United States Government $, ; , 2 ,*, ., y;;;; EM-421 (U. A. W illiams, 427-1719) Elimination of the Sites from the Formerly Utilized Sites Remedial At! tion SUBJECT: Program To The File In 1990, with the assistance of Ur. Doug Tonkay and Ms. M ichelle Ladis, I reviewed a number of sites that had formerly provided goods and/or services to the Fernald facility as subcontractors. For 24 of.these sites, recomendations were made to eliminate them from further consideration under

  14. United States Government

    Office of Legacy Management (LM)

    ,. .1 ! 8-L EFi 107 39, 3 United States Government Department of Energy m e m o randum q es. F;,;4 p JAN 3 1 I991 DATE 16% 1 c N W /- e [ q$ ';;','," EM-421 2 & t, SUBJECT Elimination of the Wash-Rite Company Site from FUSRAP T O The F ile I have reviewed the attached preliminary site summary and recommendation for the Wash-Rite Company site in Indianapolis, Indiana. I have determined that there is little likelihood of contamination at this site. Based on the above, the Wash-Rite

  15. l UNITED STATES GOVERNMENT

    Office of Legacy Management (LM)

    -_ ._ i,;PA.il--l-( ---.~ .-.---.-- .-.-_ L.. ,' 3:. /,y. ; .' ( * ' . bABDFUWW.64 iii4 ! .' - , _ ., - \ *Q@e Menwmzdzkm /-5*-i .-, ? r' / .j CJ ' 7, l UNITED STATES GOVERNMENT TO : FROM : SUBJECT: Reautor Materiala Brash, Bew York DATE : Au-t 2 % 1950 B.S. Pearson, Chief, Admbidratios Serviwr/ w ' Branch, Pittsburgh W fJ3lUAL~FBR~lFICATES MATDl!ALS,-3 @ * l . - -- E&red ia Copy lo. laf &8tewial Tramfor Cerfiiioatu Nor, 303-Z 353-2, 71bds 958-2 and %pZ eoverhg 6hipnsnt6 of sirc~ni\rp~

  16. l UNITED STATES GOVERNMENT

    Office of Legacy Management (LM)

    UNITED STATES GOVERNMENT lb 15 SUBJECT: THORFJM PROCURENENT PMF'N:TBU Jesse C. Johnson, Gtnager of IRaw Materials Operations3s.Office 3 R. W. Cook, Director of Production ~',LL:::+ I--- DATE: MAR ! 9 1951 The following list of suppliers of thorium and the amounts of materials procured from them by the Mew York Operations Office during calendar year 1950 is being supplied in accordance with Mr. Spelmanls telephone request of March 19. Thorium Lannett Bleachery iinde Air Products Co. Lindsey Light

  17. Energy Exchange Continuing Education Units

    Broader source: Energy.gov [DOE]

    International Association for Continuing Education and Training (IACET) continuing education units (CEUs) will be available for designated training sessions.

  18. High temperature interfacial superconductivity

    DOE Patents [OSTI]

    Bozovic, Ivan (Mount Sinai, NY); Logvenov, Gennady (Port Jefferson Station, NY); Gozar, Adrian Mihai (Port Jefferson, NY)

    2012-06-19

    High-temperature superconductivity confined to nanometer-scale interfaces has been a long standing goal because of potential applications in electronic devices. The spontaneous formation of a superconducting interface in bilayers consisting of an insulator (La.sub.2CuO.sub.4) and a metal (La.sub.1-xSr.sub.xCuO.sub.4), neither of which is superconducting per se, is described. Depending upon the layering sequence of the bilayers, T.sub.c may be either .about.15 K or .about.30 K. This highly robust phenomenon is confined to within 2-3 nm around the interface. After exposing the bilayer to ozone, T.sub.c exceeds 50 K and this enhanced superconductivity is also shown to originate from a 1 to 2 unit cell thick interfacial layer. The results demonstrate that engineering artificial heterostructures provides a novel, unconventional way to fabricate stable, quasi two-dimensional high T.sub.c phases and to significantly enhance superconducting properties in other superconductors. The superconducting interface may be implemented, for example, in SIS tunnel junctions or a SuFET.

  19. Second United Nations

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    i' Second United Nations t Jnternational Conference 1 , of Atomic Energy on the Peaceful Uses 4 i \ Confidential until official release during Conference ORIGINAL: ENGLISH METHODS O F PARTICLE DETECTION FOR HIGH-ENERGY PHYSICS EXPERIMENTS t * H. B r a d n e r and D. A. Glaser - INTRODUCTION J 1 % c Recent advances in our knowledge of t h e phenomena of high-energy physics and o'f the e l e m e n t a r y p a r t i c l e s h a s r e s u l t e d f r o m rapid advances in the technology of p a r t i

  20. United States Government

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    11/07/03 13:UU FAA 301 903 4t00 UAI'I'AL REGION -+ tUK rlvrEA I(JUUZ DOE F 1325.8 (08-93) United States Government Department of Energy Memorandum OFFICE OF INSPECTOR GENERAL DATE: November 7, 2003 REPLY TO ATTN OF: IG-34 (A03SC050) Audit Report Number: OAS-L-04-04 SUBJECT: Audit of the U.S. Large Hadron Collider Program TO: Director, Office of Science, SC-1 The purpose of this report is to inform you of the results of our audit of the U.S. Large Hadron Collider (LHC) Program. The audit was

  1. Federspiel Controls Data Center Energy Efficient Cooling Control System

    SciTech Connect (OSTI)

    2011-05-31

    Fact sheet about combining artificial intelligence with variable flow control, direct temperature measurement, and best practices that can reduce cooling energy use by up to 50%.

  2. Utility experience of Phase I compliance on Chalk Point Unit 2

    SciTech Connect (OSTI)

    Eberhardt, W.H.; Henry, R.J.

    1995-03-01

    Potomac Electric Power Company`s Chalk Point Generating Station Unit 2 has recently undergone a retrofit to comply with Phase I of the 1990 Clean Air Act Amendments (CAAA) Title IV requirements. The approach taken was to install low NOx burners and overfire air to reduce NOx emissions and switch to lower sulfur coal to comply with Phase I sulfur dioxide (SO{sub 2}) emission limits. This approach was chosen based on a unique combination of sophisticated tools, boiler modeling, experience, testing, and cooperation between the Owners, Engineers, and the equipment Manufacturers. The result was a project performed at a reasonable cost and minimum risk to plant reliability and performance while meeting the specified requirements of the regulations. The Unit 2 retrofit will be followed by the retrofit of its identical sister unit, Unit 1, in the late fall of 1994. In addition to the Low NOx system retrofit and coal switching, a new distributed control system (DCS), burner management system (BMS), new ignitors, and the capability to fire natural gas on both main burners and ignitors was added. A four month outage was followed by a series of optimization tests which were designed to reduce the emissions to the compliance limit while minimizing impacts on the boiler operation. After boiler startup, burner and pulverizer performance adjustments were required resulting in dramatic improvement in both boiler and burner performance. This paper describes the approach towards achieving CAAA compliance and the net results: impacts of the Low NOx system and the Phase I coal on the boiler and auxiliary plant equipment and the adjustments which had to be made to eliminate initial operating problems. Results of months of optimization testing are presented as related to emissions, furnace slagging, flame shape, unburned carbon, steam temperatures, and tube metal temperatures.

  3. High Temperature Irradiation Resistant Thermocouple (HTIR-TC)

    ScienceCinema (OSTI)

    None

    2013-05-28

    INL researchers have created a new thermocouple that can resist high temperature and radiation. This device will improve safety and reduce costs associated with unit failures. Learn more about INL research at http://www.facebook.com/idahonationallaboratory

  4. Interface Ferroelectric Transition near the Gap-Opening Temperature...

    Office of Scientific and Technical Information (OSTI)

    Interface Ferroelectric Transition near the Gap-Opening Temperature in a Single-Unit-Cell FeSe Film Grown on Nb-DopedSrTiO3Substrate Citation Details In-Document Search This...

  5. Assessment of Moderate- and High-Temperature Geothermal Resources...

    Open Energy Info (EERE)

    States Jump to: navigation, search OpenEI Reference LibraryAdd to library Report: Assessment of Moderate- and High-Temperature Geothermal Resources of the United States Abstract...

  6. Interface Ferroelectric Transition near the Gap-Opening Temperature...

    Office of Scientific and Technical Information (OSTI)

    Title: Interface Ferroelectric Transition near the Gap-Opening Temperature in a Single-Unit-Cell FeSe Film Grown on Nb-Doped SrTiO 3 Substrate Authors: Cui, Y.-T. ; Moore, R. G. ; ...

  7. Thermoelectric refrigerator having improved temperature stabilization means

    DOE Patents [OSTI]

    Falco, Charles M.

    1982-01-01

    A control system for thermoelectric refrigerators is disclosed. The thermoelectric refrigerator includes at least one thermoelectric element that undergoes a first order change at a predetermined critical temperature. The element functions as a thermoelectric refrigerator element above the critical temperature, but discontinuously ceases to function as a thermoelectric refrigerator element below the critical temperature. One example of such an arrangement includes thermoelectric refrigerator elements which are superconductors. The transition temperature of one of the superconductor elements is selected as the temperature control point of the refrigerator. When the refrigerator attempts to cool below the point, the metals become superconductors losing their ability to perform as a thermoelectric refrigerator. An extremely accurate, first-order control is realized.

  8. VPhase plc formerly Energetix Voltage Control | Open Energy Informatio...

    Open Energy Info (EERE)

    VPhase plc formerly Energetix Voltage Control Jump to: navigation, search Name: VPhase plc formerly Energetix Voltage Control Place: Capenhurst, United Kingdom Zip: CH1 6EH...

  9. Building America Case Study: Boiler Control Replacement for Hydronically Heated Multifamily Buildings, Cambridge, Massachusetts (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2014-11-01

    The ARIES Collaborative, a U.S. Department of Energy Building America research team, partnered with NeighborWorks America affiliate Homeowners' Rehab Inc. (HRI) of Cambridge, Massachusetts, to study improvements to the central hydronic heating system in one of the nonprofit's housing developments. The heating controls in the three-building, 42-unit Columbia Cambridge Alliance for Spanish Tenants housing development were upgraded. Fuel use in the development was excessive compared to similar properties. A poorly insulated thermal envelope contributed to high energy bills, but adding wall insulation was not cost-effective or practical. The more cost-effective option was improving heating system efficiency. Efficient operation of the heating system faced several obstacles, including inflexible boiler controls and failed thermostatic radiator valves. Boiler controls were replaced with systems that offer temperature setbacks and one that controls heat based on apartment temperature in addition to outdoor temperature. Utility bill analysis shows that post-retrofit weather-normalized heating energy use was reduced by 10%-31% (average of 19%). Indoor temperature cutoff reduced boiler runtime (and therefore heating fuel consumption) by 28% in the one building in which it was implemented. Nearly all savings were obtained during night which had a lower indoor temperature cut off (68 degrees F) than day (73 degrees F). This implies that the outdoor reset curve was appropriately adjusted for this building for daytime operation. Nighttime setback of heating system supply water temperature had no discernable impact on boiler runtime or gas bills.

  10. Technology Solutions Case Study: Boiler Control Replacement for Hydronically Heated Multifamily Buildings, Cambridge, Massachusetts

    SciTech Connect (OSTI)

    2014-11-01

    The ARIES Collaborative, a U.S. Department of Energy Building America research team, partnered with NeighborWorks America affiliate Homeowners' Rehab Inc. (HRI) of Cambridge, Massachusetts, to study improvements to the central hydronic heating system in one of the nonprofit's housing developments. The heating controls in the three-building, 42-unit Columbia Cambridge Alliance for Spanish Tenants housing development were upgraded. Fuel use in the development was excessive compared to similar properties. A poorly insulated thermal envelope contributed to high energy bills, but adding wall insulation was not cost-effective or practical. The more cost-effective option was improving heating system efficiency, which faced several obstacles, including inflexible boiler controls and failed thermostatic radiator valves. Boiler controls were replaced with systems that offer temperature setbacks and one that controls heat based on apartment temperature in addition to outdoor temperature. Utility bill analysis shows that post-retrofit weather-normalized heating energy use was reduced by 10%-31% (average of 19%). Indoor temperature cutoff reduced boiler runtime (and therefore heating fuel consumption) by 28% in the one building in which it was implemented. Nearly all savings were obtained during night which had a lower indoor temperature cut off (68F) than day (73 F). This implies that the outdoor reset curve was appropriately adjusted for this building for daytime operation. Nighttime setback of heating system supply water temperature had no discernable impact on boiler runtime or gas bills.

  11. Hydronic Heating Retrofits for Low-Rise Multifamily Buildings: Boiler Control Replacement and Monitoring

    SciTech Connect (OSTI)

    Dentz, J.; Henderson, H.; Varshney, K.

    2014-09-01

    The ARIES Collaborative, a U.S. Department of Energy Building America research team, partnered with NeighborWorks America affiliate Homeowners' Rehab Inc. (HRI) of Cambridge, Massachusetts, to study improvements to the central hydronic heating system in one of the nonprofit's housing developments. The heating controls in the three-building, 42-unit Columbia Cambridge Alliance for Spanish Tenants housing development were upgraded. Fuel use in the development was excessive compared to similar properties. A poorly insulated thermal envelope contributed to high energy bills, but adding wall insulation was not cost-effective or practical. The more cost-effective option was improving heating system efficiency. Efficient operation of the heating system faced several obstacles, including inflexible boiler controls and failed thermostatic radiator valves. Boiler controls were replaced with systems that offer temperature setbacks and one that controls heat based on apartment temperature in addition to outdoor temperature. Utility bill analysis shows that post-retrofit weather-normalized heating energy use was reduced by 10%-31% (average of 19%). Indoor temperature cutoff reduced boiler runtime (and therefore heating fuel consumption) by 28% in the one building in which it was implemented. Nearly all savings were obtained during night which had a lower indoor temperature cut off (68 degrees F) than day (73 degrees F). This implies that the outdoor reset curve was appropriately adjusted for this building for daytime operation. Nighttime setback of heating system supply water temperature had no discernable impact on boiler runtime or gas bills.

  12. High temperature ceramic/metal joint structure

    DOE Patents [OSTI]

    Boyd, Gary L. (Tempe, AZ)

    1991-01-01

    A high temperature turbine engine includes a hybrid ceramic/metallic rotor member having ceramic/metal joint structure. The disclosed joint is able to endure higher temperatures than previously possible, and aids in controlling heat transfer in the rotor member.

  13. High Temperature ESP Monitoring

    Broader source: Energy.gov [DOE]

    The purpose of the High Temperature ESP Monitoring project is to develop a down-hole monitoring system to be used in wells with bottom hole temperature up to 300 °C for measuring motor temperature; pump discharge pressure; and formation temperature and pressure.

  14. Digital Mapping Of Structurally Controlled Geothermal Features...

    Open Energy Info (EERE)

    GPS Units And Pocket Computers Jump to: navigation, search OpenEI Reference LibraryAdd to library Conference Paper: Digital Mapping Of Structurally Controlled Geothermal Features...

  15. Customizing a VOC control technology

    SciTech Connect (OSTI)

    Enneking, J.C.

    1998-12-31

    An extremely important but very difficult element in applying an emission control device to an exhaust stream is to chose the proper technology. Once it has been determined that recovery, rather than destruction, is appropriate, there are still several process choices available. The type of process is generally dictated by the VOC concentration and total air flow rate. Adsorption is usually chosen for low concentrations and high flow rates while refrigeration is usually best for high concentrations and low flow rates. This paper describes six applications. Adsorption was applied to two of them and condensation to the other four. Solvent vapors from a tape coating operation are recovered in an activated carbon adsorption process and reused. VOC`s from soil vapor extraction operations are captured by activated carbon which is regenerated by a mobile unit. VOC`s displaced from filling tank cars at a refinery are condensed at low temperatures in a high pressure system which uses a pressure swing dryer to remove water. Two different processes were installed to prevent VOC emissions from pharmaceutical processing plants. They both use a thermal swing dryer to remove moisture and low temperature condensation to recover the solvent. With very high concentrations of solvent in an inert gas stream, indirect condensation is used to purify the nitrogen and recover the solvent for reuse. Process flow diagrams and operating results are presented.

  16. Accelerating CHP Deployment, United States Energy Association...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Accelerating CHP Deployment, United States Energy Association (USEA), August 2011 Accelerating CHP Deployment, United States Energy Association (USEA), August 2011 The United ...

  17. Daylight control system device and method

    DOE Patents [OSTI]

    Paton, John Douglas

    2009-12-01

    A system and device for and a method of programming and controlling light fixtures is disclosed. A system in accordance with the present invention includes a stationary controller unit that is electrically coupled to the light fixtures. The stationary controller unit is configured to be remotely programmed with a portable commissioning device to automatically control the lights fixtures. The stationary controller unit and the portable commissioning device include light sensors, micro-computers and transceivers for measuring light levels, running programs, storing data and transmitting data between the stationary controller unit and the portable commissioning device. In operation, target light levels selected with the portable commissioning device and the controller unit is remotely programmed to automatically maintain the target level.

  18. Daylight control system, device and method

    DOE Patents [OSTI]

    Paton, John Douglas

    2012-08-28

    A system and device for and a method of programming and controlling light fixtures is disclosed. A system in accordance with the present invention includes a stationary controller unit that is electrically coupled to the light fixtures. The stationary controller unit is configured to be remotely programmed with a portable commissioning device to automatically control the lights fixtures. The stationary controller unit and the portable commissioning device include light sensors, micro-computers and transceivers for measuring light levels, running programs, storing data and transmitting data between the stationary controller unit and the portable commissioning device. In operation, target light levels selected with the portable commissioning device and the controller unit is remotely programmed to automatically maintain the target level.

  19. Daylight control system device and method

    DOE Patents [OSTI]

    Paton, John Douglas

    2007-03-13

    A system and device for and a method of programming and controlling light fixtures is disclosed. A system in accordance with the present invention includes a stationary controller unit that is electrically coupled to the light fixtures. The stationary controller unit is configured to be remotely programmed with a portable commissioning device to automatically control the lights fixtures. The stationary controller unit and the portable commissioning device include light sensors, micro-computers and transceivers for measuring light levels, running programs, storing data and transmitting data between the stationary controller unit and the portable commissioning device. In operation, target light levels selected with the portable commissioning device and the controller unit is remotely programmed to automatically maintain the target level.

  20. High temperature furnace

    DOE Patents [OSTI]

    Borkowski, Casimer J.

    1976-08-03

    A high temperature furnace for use above 2000.degree.C is provided that features fast initial heating and low power consumption at the operating temperature. The cathode is initially heated by joule heating followed by electron emission heating at the operating temperature. The cathode is designed for routine large temperature excursions without being subjected to high thermal stresses. A further characteristic of the device is the elimination of any ceramic components from the high temperature zone of the furnace.

  1. United Biofuels | Open Energy Information

    Open Energy Info (EERE)

    Biofuels Jump to: navigation, search Name: United Biofuels Place: York, Pennsylvania Product: Waste and animal fats to biofuel producer, switched to animal fats from soy in fall of...

  2. The Envelope Thermal Test Unit (ETTU): Full Measurement of WallPerform ance

    SciTech Connect (OSTI)

    Sonderegger, R.C.; Sherman, M.H.; Adams, J.W.

    1981-10-01

    There are many ways of calculating the dynamic thermal performance of walls and many ways of measuring the performance of walls in the laboratory, relatively few field measurements have been made of the dynamic performance of wall in situ. Measuring the thermal performance of walls in situ poses two separate problems: measuring the heat fluxes and surface temperatures of the wall, and reducing this data set into usable parameters. We have solved the first problem by developing the Envelope Thermal Test Unit (ETTU). ETTU consists of two specially constructed polystyrene blankets, 1.2m square, placed on either side of the test wall that both control and measure the surface fluxes and surface temperatures of the wall. To solve the second problem we have developed a simplified dynamic model that describes the thermal performance of a wall in terms of its steady-state conductance, a time constant, and some storage terms. We have used ETTU in the field to measure the thermal performance of walls, and have applied our simplified analysis to calculate simplified thermal parameters from this data set. In this report, we present the in-situ measurements made to date using ETTU, and the resulting model predictions. The agreement between measured and predicted surface fluxes demonstrates the ability of our test unit and analytic model to describe the dynamic performance of walls in situ.

  3. Low-Temperature Hydrocarbon/CO Oxidation Catalysis in Support...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Low-Temperature HydrocarbonCO Oxidation Catalysis in Support of HCCI Emission Control Selectlive Catalytic Reducution of NOx wilth Diesel-Based Fuels as Reductants Low-Temperature ...

  4. Beowawe Bottoming Binary Unit - Final Technical Report for EE0002856

    SciTech Connect (OSTI)

    McDonald, Dale Edward

    2013-02-12

    This binary plant is the first high-output refrigeration based waste heat recovery cycle in the industry. Its working fluid is environmentally friendly and as such, the permits that would be required with a butane based cycle are not necessary. The unit is modularized, meaning that the unit’s individual skids were assembled in another location and were shipped via truck to the plant site. This project proves the technical feasibility of using low temperature brine The development of the unit led to the realization of low temperature, high output, and environmentally friendly heat recovery systems through domestic research and engineering. The project generates additional renewable energy for Nevada, resulting in cleaner air and reduced carbon dioxide emissions. Royalty and tax payments to governmental agencies will increase, resulting in reduced financial pressure on local entities. The major components of the unit were sourced from American companies, resulting in increased economic activity throughout the country.

  5. Enzymatic temperature change indicator

    DOE Patents [OSTI]

    Klibanov, Alexander M.; Dordick, Jonathan S.

    1989-01-21

    A temperature change indicator is described which is composed of an enzyme and a substrate for that enzyme suspended in a solid organic solvent or mixture of solvents as a support medium. The organic solvent or solvents are chosen so as to melt at a specific temperature or in a specific temperature range. When the temperature of the indicator is elevated above the chosen, or critical temperature, the solid organic solvent support will melt, and the enzymatic reaction will occur, producing a visually detectable product which is stable to further temperature variation.

  6. Self-correcting Controls for Air Handling Units

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Utility Resources News & Events Expand News & Events Skip navigation links Smart Grid Demand Response Energy Efficiency Emerging Technologies Current Research Portfolio...

  7. Million U.S. Housing Units Total............................................................................

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Attached 2 to 4 Units Table HC2.12 Home Electronics Usage Indicators by Type of Housing Unit, 2005 5 or More Units Mobile Homes Type of Housing Unit Housing Units (millions) Single-Family Units Apartments in Buildings With-- Home Electronics Usage Indicators Detached Energy Information Administration: 2005 Residential Energy Consumption Survey: Preliminary Housing Characteristics Tables Million U.S. Housing Units Attached 2 to 4 Units Table HC2.12 Home Electronics Usage Indicators by Type of

  8. High temperature measuring device

    DOE Patents [OSTI]

    Tokarz, Richard D.

    1983-01-01

    A temperature measuring device for very high design temperatures (to 2,000.degree. C.). The device comprises a homogenous base structure preferably in the form of a sphere or cylinder. The base structure contains a large number of individual walled cells. The base structure has a decreasing coefficient of elasticity within the temperature range being monitored. A predetermined quantity of inert gas is confined within each cell. The cells are dimensionally stable at the normal working temperature of the device. Increases in gaseous pressure within the cells will permanently deform the cell walls at temperatures within the high temperature range to be measured. Such deformation can be correlated to temperature by calibrating similarly constructed devices under known time and temperature conditions.

  9. Initial Experimental Results of a Machine Learning-Based Temperature...

    Office of Scientific and Technical Information (OSTI)

    Initial Experimental Results of a Machine Learning-Based Temperature Control System for an RF Gun Citation Details In-Document Search Title: Initial Experimental Results of a...

  10. Temperature-profile detector

    DOE Patents [OSTI]

    Not Available

    1981-01-29

    Temperature profiles at elevated temperature conditions are monitored by use of an elongated device having two conductors spaced by the minimum distance required to normally maintain an open circuit between them. The melting point of one conductor is selected at the elevated temperature being detected, while the melting point of the other is higher. As the preselected temperature is reached, liquid metal will flow between the conductors creating short circuits which are detectable as to location.

  11. Temperature profile detector

    DOE Patents [OSTI]

    Tokarz, Richard D.

    1983-01-01

    Temperature profiles at elevated temperature conditions are monitored by use of an elongated device having two conductors spaced by the minimum distance required to normally maintain an open circuit between them. The melting point of one conductor is selected at the elevated temperature being detected, while the melting point of the other is higher. As the preselected temperature is reached, liquid metal will flow between the conductors, creating short circuits which are detectable as to location.

  12. High temperature sensor

    DOE Patents [OSTI]

    Tokarz, Richard D.

    1982-01-01

    A high temperature sensor includes a pair of electrical conductors separated by a mass of electrical insulating material. The insulating material has a measurable resistivity within the sensor that changes in relation to the temperature of the insulating material within a high temperature range (1,000 to 2,000 K.). When required, the sensor can be encased within a ceramic protective coating.

  13. Advanced Unit Commitment Strategies in the United States Eastern Interconnection

    SciTech Connect (OSTI)

    Meibom, P.; Larsen, H. V.; Barth, R.; Brand, H.; Tuohy, A.; Ela, E.

    2011-08-01

    This project sought to evaluate the impacts of high wind penetrations on the U.S. Eastern Interconnection and analyze how different unit commitment strategies may affect these impacts.

  14. Michaela G. Farr and Joshua S. Stein Sandia National Laboratory, Albuquerque, NM, 87185, United States

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Spatial Variations in Temperature across a Photovoltaic Array Michaela G. Farr and Joshua S. Stein Sandia National Laboratory, Albuquerque, NM, 87185, United States ABSTRACT - The efficiency of any photovoltaic device is significantly affected by its operating temperature. It is therefore of great interest to the PV industry to have accurate models of module and array temperatures. Existing PV performance models generally assume that module temperature is a function of plane-of-array irradiance,

  15. Rising global temperatures accelerate drought-induced forest mortality

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Drought-induced forest mortality Rising global temperatures accelerate drought-induced forest mortality Many southwestern forests in the United States will disappear or be heavily altered by 2050, according to a series of joint LANL-UNM studies. April 23, 2015 Piñon trees show increased susceptibility to drought when also subjected to rising temperatures. Piñon trees show increased susceptibility to drought when also subjected to rising temperatures. Contact Nancy Ambrosiano Communications

  16. United States Environmental Protection Agency

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    t United States Environmental Protection Agency knwronmenrar iwonrrormg Systems Laboratory P.O. 80x 93478 Las Vegas NV 89193-3478 kt'h/ D\)ci/ 4-t i / b I, DOE/DP/DD539/058 May 1987 Research and Development Off-Site Environmental Monitoring Report: 191 qbO Radiation Monitoring Around United States Nuclear Test Areas, Calendar Year 1986 prepared for the United States Department of Energy under Interagency Agreement Number DE-AI08-76DP00539 EPA-600/4-87-017 DOE/DP/00539-058 May 1987 OFF-SITE

  17. Temperature compensated photovoltaic array

    DOE Patents [OSTI]

    Mosher, Dan Michael

    1997-11-18

    A temperature compensated photovoltaic module (20) comprised of a series of solar cells (22) having a thermally activated switch (24) connected in parallel with several of the cells (22). The photovoltaic module (20) is adapted to charge conventional batteries having a temperature coefficient (TC) differing from the temperature coefficient (TC) of the module (20). The calibration temperatures of the switches (24) are chosen whereby the colder the ambient temperature for the module (20), the more switches that are on and form a closed circuit to short the associated solar cells (22). By shorting some of the solar cells (22) as the ambient temperature decreases, the battery being charged by the module (20) is not excessively overcharged at lower temperatures. PV module (20) is an integrated solution that is reliable and inexpensive.

  18. Temperature compensated photovoltaic array

    DOE Patents [OSTI]

    Mosher, D.M.

    1997-11-18

    A temperature compensated photovoltaic module comprises a series of solar cells having a thermally activated switch connected in parallel with several of the cells. The photovoltaic module is adapted to charge conventional batteries having a temperature coefficient differing from the temperature coefficient of the module. The calibration temperatures of the switches are chosen whereby the colder the ambient temperature for the module, the more switches that are on and form a closed circuit to short the associated solar cells. By shorting some of the solar cells as the ambient temperature decreases, the battery being charged by the module is not excessively overcharged at lower temperatures. PV module is an integrated solution that is reliable and inexpensive. 2 figs.

  19. UNITED STATES ENVIRONMENTAL PROTECTION AGENCY

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    UNITED STATES ENVIRONMENTAL PROTECTION AGENCY REGION 6 14,15 ROSS AVENUE, SUITE 1200 DALLAS, TX 752A2-n33 JAt 5 20ll cERTrrmD rytAlr- RETIIRN RECETPT REOITESIEn COPY Edward ...

  20. United States Electricity Industry Primer

    Broader source: Energy.gov [DOE]

    The United States Electricity Industry Primer provides a high-level overview of the U.S. electricity supply chain, including generation, transmission, and distribution; markets and ownership structures, including utilities and regulatory agencies; and system reliability and vulnerabilities.

  1. United Cooperative | Open Energy Information

    Open Energy Info (EERE)

    which agreed to purchase a former VeraSun Energy ethanol plant in Iowa from AgStar Financial Services in August 2009. References: United Cooperative1 This article is a...

  2. New Mexico grape growers unite

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    New Mexico grape growers unite, increase production Grape Growers Association enlivens agriculture Growers association unites small parcels of land, enlivens production, protects water rights for Northern New Mexico agriculturists. August 6, 2012 Northern New Mexico Micro Grape Growers Association The NMSBA Entrepreneurial Networking program is helping Lucia Sanchez (C) Tim Martinez (R) and Robert Naranjo, the Northern New Mexico Micro Grape Growers Association, put small parcels of land back

  3. United States Environmental Monitoring EPA

    Office of Legacy Management (LM)

    United States Environmental Monitoring EPA 600/R-93/141 Environmental Protection Systems Laboratory January 1992 Agency P.O. Box 93478 Las Vegas NV 89193-3478 Research and Development _EPA Offsite Environmental Monitoring Report: Radiation Monitoring Around United States Nuclear Test Areas, Calendar Year 1991 Available to DOE and DOE contractors from the Office of Scientificand Technical Information, P.O. Box 62, Oak ridge,TN 39831; pricesavailablefrom (615) 576-8401 Availableto the publicfrom

  4. Elevated exhaust temperature, zoned, electrically-heated particulate matter filter

    DOE Patents [OSTI]

    Gonze, Eugene V [Pinckney, MI; Bhatia, Garima [Bangalore, IN

    2012-04-17

    A system includes an electrical heater and a particulate matter (PM) filter that is arranged one of adjacent to and in contact with the electrical heater. A control module selectively increases an exhaust gas temperature of an engine to a first temperature and that initiates regeneration of the PM filter using the electrical heater while the exhaust gas temperature is above the first temperature. The first temperature is greater than a maximum exhaust gas temperature at the PM filter during non-regeneration operation and is less than an oxidation temperature of the PM.

  5. Energy, Carbon-emission and Financial Savings from Thermostat Control

    SciTech Connect (OSTI)

    Blasing, T J; Schroeder, Dana

    2013-08-01

    Among the easiest approaches to energy, and cost, savings for most people is the adjustment of thermostats to save energy. Here we estimate savings of energy, carbon, and money in the United States of America (USA) that would result from adjusting thermostats in residential and commercial buildings by about half a degree Celsius downward during the heating season and upward during the cooling season. To obtain as small a unit as possible, and therefore the least likely to be noticeable by most people, we selected an adjustment of one degree Fahrenheit (0.56 degree Celsius) which is the gradation used almost exclusively on thermostats in the USA and is the smallest unit of temperature that has been used historically. Heating and/or cooling of interior building space for personal comfort is sometimes referred to as space conditioning, a term we will use for convenience throughout this work without consideration of humidity. Thermostat adjustment, as we use the term here, applies to thermostats that control the indoor temperature, and not to other thermostats such as those on water heaters. We track emissions of carbon only, rather than of carbon dioxide, because carbon atoms change atomic partners as they move through the carbon cycle, from atmosphere to biosphere or ocean and, on longer time scales, through the rock cycle. To convert a mass of carbon to an equivalent mass of carbon dioxide (thereby including the mass of the 2 oxygen atoms in each molecule) simply multiply by 3.67.

  6. Effects of Warming on Tree Species’ Recruitment in Deciduous Forests of the Eastern United States

    SciTech Connect (OSTI)

    Melillo, Jerry M.; Clark, James S.; Mohan, Jacqueline

    2015-03-25

    Climate change is restructuring forests of the United States, although the details of this restructuring are currently uncertain. Rising temperatures of 2 to 8oC and associated changes in soil moisture will shift the competitive balance between species that compete for light and water, and so change their abilities to produce seed, germinate, grow, and survive. We have used large-scale experiments to determine the effects of warming on the most sensitive stage of species distributions, i.e., recruitment, in mixed deciduous forests in southern New England and in the Piedmont region of North Carolina. Two questions organized our research: (1) Might temperate tree species near the “warm” end of their range in the eastern United States decline in abundance during the coming century due to projected warming? and (2) Might trees near the “cool” end of their range in the eastern United States increase in abundance, or extend their range, during the coming 100 years because of projected warming? To explore these questions, we exposed seedlings to air and soil warming experiments in two eastern deciduous forest sites; one at the Harvard Forest (HF) in central Massachusetts, and the other at the Duke Forest (DF) in the Piedmont region of North Carolina. We focused on tree species common to both Harvard and Duke Forests (such as red, black, and white oaks), those near northern range limits (black oak, flowing dogwood, tulip poplar), and those near southern range limits (yellow birch, sugar maple, Virginia pine). At each site, we planted seeds and seedlings in common gardens established in temperature-controlled, open-top chambers. The experimental design was replicated and fully factorial and involved three temperature regimes (ambient, +3oC and +5oC) and two light regimes (closed forest canopy (low light) and gap conditions (high light)). Measured variables included Winter/Spring responses to temperature and mid-Summer responses to low soil moisture. This research will advance our understanding of how the abundances and geographic distributions of several important eastern tree species near the cool and warm ends of their ranges will change during the century because of projected warming. Warming-induced changes in eastern tree abundances and distributions have the potential to affect both the quality and quantity of goods and services provided by eastern forests, and will therefore be of importance to society.

  7. Dynamic control of remelting processes

    DOE Patents [OSTI]

    Bertram, Lee A. (Dublin, CA); Williamson, Rodney L. (Albuquerque, NM); Melgaard, David K. (Albuquerque, NM); Beaman, Joseph J. (Austin, TX); Evans, David G. (Clinton, NY)

    2000-01-01

    An apparatus and method of controlling a remelting process by providing measured process variable values to a process controller; estimating process variable values using a process model of a remelting process; and outputting estimated process variable values from the process controller. Feedback and feedforward control devices receive the estimated process variable values and adjust inputs to the remelting process. Electrode weight, electrode mass, electrode gap, process current, process voltage, electrode position, electrode temperature, electrode thermal boundary layer thickness, electrode velocity, electrode acceleration, slag temperature, melting efficiency, cooling water temperature, cooling water flow rate, crucible temperature profile, slag skin temperature, and/or drip short events are employed, as are parameters representing physical constraints of electroslag remelting or vacuum arc remelting, as applicable.

  8. Magnetic nanoparticle temperature estimation

    SciTech Connect (OSTI)

    Weaver, John B.; Rauwerdink, Adam M.; Hansen, Eric W.

    2009-05-15

    The authors present a method of measuring the temperature of magnetic nanoparticles that can be adapted to provide in vivo temperature maps. Many of the minimally invasive therapies that promise to reduce health care costs and improve patient outcomes heat tissue to very specific temperatures to be effective. Measurements are required because physiological cooling, primarily blood flow, makes the temperature difficult to predict a priori. The ratio of the fifth and third harmonics of the magnetization generated by magnetic nanoparticles in a sinusoidal field is used to generate a calibration curve and to subsequently estimate the temperature. The calibration curve is obtained by varying the amplitude of the sinusoidal field. The temperature can then be estimated from any subsequent measurement of the ratio. The accuracy was 0.3 deg. K between 20 and 50 deg. C using the current apparatus and half-second measurements. The method is independent of nanoparticle concentration and nanoparticle size distribution.

  9. Supported Au-CuO Catalysts for Low Temperature CO Oxidation | Department of

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Energy Supported Au-CuO Catalysts for Low Temperature CO Oxidation Supported Au-CuO Catalysts for Low Temperature CO Oxidation Catalytic properties of Au-CuOx/SiO2 are investigated in removing pollutants from simulated automotive exhaust to meet an increasing demand for high emissions control at low temperatures. PDF icon p-02_bauer.pdf More Documents & Publications Low Temperature Emission Control Vehicle Technologies Office Merit Review 2014: Low Temperature Emission Control to Enable

  10. High temperature refrigerator

    DOE Patents [OSTI]

    Steyert, Jr., William A.

    1978-01-01

    A high temperature magnetic refrigerator which uses a Stirling-like cycle in which rotating magnetic working material is heated in zero field and adiabatically magnetized, cooled in high field, then adiabatically demagnetized. During this cycle said working material is in heat exchange with a pumped fluid which absorbs heat from a low temperature heat source and deposits heat in a high temperature reservoir. The magnetic refrigeration cycle operates at an efficiency 70% of Carnot.

  11. Automatic temperature adjustment apparatus

    DOE Patents [OSTI]

    Chaplin, James E.

    1985-01-01

    An apparatus for increasing the efficiency of a conventional central space heating system is disclosed. The temperature of a fluid heating medium is adjusted based on a measurement of the external temperature, and a system parameter. The system parameter is periodically modified based on a closed loop process that monitors the operation of the heating system. This closed loop process provides a heating medium temperature value that is very near the optimum for energy efficiency.

  12. ARM - Measurement - Atmospheric temperature

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    temperature ARM Data Discovery Browse Data Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Measurement : Atmospheric temperature The temperature indicated by a thermometer exposed to the air in a place sheltered from direct solar radiation. Categories Atmospheric State Instruments The above measurement is considered scientifically relevant for the following instruments. Refer to the datastream (netcdf) file headers of each instrument for a list

  13. High-temperature sensor

    DOE Patents [OSTI]

    Not Available

    1981-01-29

    A high temperature sensor is described which includes a pair of electrical conductors separated by a mass of electrical insulating material. The insulating material has a measurable resistivity within the sensor that changes in relation to the temperature of the insulating material within a high temperature range (1000 to 2000/sup 0/K). When required, the sensor can be encased within a ceramic protective coating.

  14. Refrigeration system with a compressor-pump unit and a liquid-injection desuperheating line

    DOE Patents [OSTI]

    Gaul, Christopher J. (Thornton, CO)

    2001-01-01

    The refrigeration system includes a compressor-pump unit and/or a liquid-injection assembly. The refrigeration system is a vapor-compression refrigeration system that includes an expansion device, an evaporator, a compressor, a condenser, and a liquid pump between the condenser and the expansion device. The liquid pump improves efficiency of the refrigeration system by increasing the pressure of, thus subcooling, the liquid refrigerant delivered from the condenser to the expansion device. The liquid pump and the compressor are driven by a single driving device and, in this regard, are coupled to a single shaft of a driving device, such as a belt-drive, an engine, or an electric motor. While the driving device may be separately contained, in a preferred embodiment, the liquid pump, the compressor, and the driving device (i.e., an electric motor) are contained within a single sealable housing having pump and driving device cooling paths to subcool liquid refrigerant discharged from the liquid pump and to control the operating temperature of the driving device. In another aspect of the present invention, a liquid injection assembly is included in a refrigeration system to divert liquid refrigerant from the discharge of a liquid pressure amplification pump to a compressor discharge pathway within a compressor housing to desuperheat refrigerant vapor to the saturation point within the compressor housing. The liquid injection assembly includes a liquid injection pipe with a control valve to meter the volume of diverted liquid refrigerant. The liquid injection assembly may also include a feedback controller with a microprocessor responsive to a pressure sensor and a temperature sensor both positioned between the compressor to operate the control valve to maintain the refrigerant at or near saturation.

  15. Low temperature cryoprobe

    DOE Patents [OSTI]

    Sungaila, Zenon F. (Orland Park, IL)

    1989-01-01

    A portable, hand held probe usable within a small confine to produce a point source of nitrogen or helium at a relatively constant temperature of 77 degrees Kelvin.

  16. Temperature and RH Targets

    Broader source: Energy.gov [DOE]

    Presented by Vishal O Mittal of the Florida Solar Energy Center at the High Temperature Membrane Working Group Meeting, San Francisco, September 14, 2006.

  17. United Power, Inc | Open Energy Information

    Open Energy Info (EERE)

    United Power, Inc Place: Colorado Website: unitedpower.com Twitter: @UnitedPowerCoop Facebook: https:www.facebook.comUnitedPower Outage Hotline: 1-303-637-1350 Outage Map:...

  18. Fiber optic temperature sensor

    SciTech Connect (OSTI)

    Rabold, D.

    1995-12-01

    Our fiber optic temperature measurement sensor and system is a major improvement over methods currently in use in most industrial processes, and it delivers all of the attributes required simplicity, accuracy, and cost efficiency-to help improve all of these processes. Because temperature is a basic physical attribute of nearly every industrial and commercial process, our system can eventually result in significant improvements in nearly every industrial and commercial process. Many finished goods, and the materials that go into them, are critically dependent on the temperature. The better the temperature measurement, the better quality the goods will be and the more economically they can be produced. The production and transmission of energy requires the monitoring of temperature in motors, circuit breakers, power generating plants, and transmission line equipment. The more reliable and robust the methods for measuring these temperature, the more available, stable, and affordable the supply of energy will become. The world is increasingly realizing the threats to health and safety of toxic or otherwise undesirable by products of the industrial economy in the environment. Cleanup of such contamination often depends on techniques that require the constant monitoring of temperature in extremely hazardous environments, which can damage most conventional temperature sensors and which are dangerous for operating personnel. Our system makes such monitoring safer and more economical.

  19. ARM - Word Seek: Temperature

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Temperature Outreach Home Room News Publications Traditional Knowledge Kiosks Barrow, Alaska Tropical Western Pacific Site Tours Contacts Students Study Hall About ARM Global Warming FAQ Just for Fun Meet our Friends Cool Sites Teachers Teachers' Toolbox Lesson Plans Word Seek: Temperature

  20. Dream controller

    DOE Patents [OSTI]

    Cheng, George Shu-Xing; Mulkey, Steven L; Wang, Qiang; Chow, Andrew J

    2013-11-26

    A method and apparatus for intelligently controlling continuous process variables. A Dream Controller comprises an Intelligent Engine mechanism and a number of Model-Free Adaptive (MFA) controllers, each of which is suitable to control a process with specific behaviors. The Intelligent Engine can automatically select the appropriate MFA controller and its parameters so that the Dream Controller can be easily used by people with limited control experience and those who do not have the time to commission, tune, and maintain automatic controllers.

  1. High Temperature ESP Monitoring

    SciTech Connect (OSTI)

    Jack Booker; Brindesh Dhruva

    2011-06-20

    The objective of the High Temperature ESP Monitoring project was to develop a downhole monitoring system to be used in wells with bottom hole well temperatures up to 300C for measuring motor temperature, formation pressure, and formation temperature. These measurements are used to monitor the health of the ESP motor, to track the downhole operating conditions, and to optimize the pump operation. A 220 C based High Temperature ESP Monitoring system was commercially released for sale with Schlumberger ESP motors April of 2011 and a 250 C system with will be commercially released at the end of Q2 2011. The measurement system is now fully qualified, except for the sensor, at 300 C.

  2. High temperature probe

    DOE Patents [OSTI]

    Swan, Raymond A.

    1994-01-01

    A high temperature probe for sampling, for example, smokestack fumes, and is able to withstand temperatures of 3000.degree. F. The probe is constructed so as to prevent leakage via the seal by placing the seal inside the water jacket whereby the seal is not exposed to high temperature, which destroys the seal. The sample inlet of the probe is also provided with cooling fins about the area of the seal to provide additional cooling to prevent the seal from being destroyed. Also, a heated jacket is provided for maintaining the temperature of the gas being tested as it passes through the probe. The probe includes pressure sensing means for determining the flow velocity of an efficient being sampled. In addition, thermocouples are located in various places on the probe to monitor the temperature of the gas passing there through.

  3. Controlling Graphene's Electronic Structure

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Controlling Graphene's Electronic Structure Controlling Graphene's Electronic Structure Print Wednesday, 25 April 2007 00:00 Graphene, because of its unusual electron properties, reduced dimensionality, and scale, has enormous potential for use in ultrafast electronic transistors. It exhibits high conductivity and an anomalous quantum Hall effect (a phenomenon exhibited by certain semiconductor devices at low temperatures and high magnetic fields). Among its novel properties, graphene's

  4. Unit Energy Europe AG | Open Energy Information

    Open Energy Info (EERE)

    Wind energy Product: Unit Energy develops and operates wind parks and hydroelectric power plants all across Europe. References: Unit Energy Europe AG1 This article is a stub....

  5. Sunton United Energy LLC | Open Energy Information

    Open Energy Info (EERE)

    United Energy LLC Jump to: navigation, search Name: Sunton United Energy LLC Place: Salt Lake City, Utah Sector: Renewable Energy Product: Utah-based investment company seeking...

  6. Low Carbon Transition Unit | Open Energy Information

    Open Energy Info (EERE)

    Transition Unit Jump to: navigation, search Name Low Carbon Transition Unit AgencyCompany Organization Danish Government Partner Danish Ministry of Climate, Energy and Buildings;...

  7. United Energy Group PLC | Open Energy Information

    Open Energy Info (EERE)

    Group PLC Jump to: navigation, search Name: United Energy Group PLC Place: Haslemere, United Kingdom Sector: Hydro, Wind energy Product: The company develops small hydro, gas...

  8. United Biofuels Private Limited | Open Energy Information

    Open Energy Info (EERE)

    United Biofuels Private Limited Jump to: navigation, search Name: United Biofuels Private Limited Place: Tamil Nadu, India Sector: Biomass Product: India-based owner and operator...

  9. Photovoltaics Economic Calculator (United States) | Open Energy...

    Open Energy Info (EERE)

    (United States) Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Photovoltaics Economic Calculator (United States) Focus Area: Solar Topics: System & Application...

  10. GEO UNIT AGREEMENT | Open Energy Information

    Open Energy Info (EERE)

    GEO UNIT AGREEMENT Jump to: navigation, search GEO UNIT AGREEMENT Mineral interest joined together to explore, develop and produce geothermal resources Retrieved from "http:...

  11. Storage Resource Unit (SRU) Formula Coefficients

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Formula Coefficients Storage Resource Unit (SRU) Formula Coefficients The coefficients in the Storage Resource Unit (SRU) formula were arrived at from the following considerations:...

  12. " Million U.S. Housing Units"

    U.S. Energy Information Administration (EIA) Indexed Site

    3 Lighting Usage Indicators by Type of Housing Unit, 2005" " Million U.S. Housing Units" ... in Buildings With--" "Lighting Usage Indicators",,"Detached","Attached"...

  13. " Million U.S. Housing Units"

    U.S. Energy Information Administration (EIA) Indexed Site

    Lighting Usage Indicators by UrbanRural Location, 2005" " Million U.S. Housing Units" ,,"UrbanRural Location (as Self-Reported)" ,"Housing Units (millions)" "Lighting Usage ...

  14. United Group Limited | Open Energy Information

    Open Energy Info (EERE)

    Limited Jump to: navigation, search Name: United Group Limited Place: Perth, Western Australia, Australia Zip: 6001 Product: The United Group Resources (UGL) division is an EPC and...

  15. Biofuels Atlas (United States) | Open Energy Information

    Open Energy Info (EERE)

    Atlas (United States) Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Biofuels Atlas (United States) Focus Area: Clean Transportation Topics: Potentials & Scenarios...

  16. " Million U.S. Housing Units"

    U.S. Energy Information Administration (EIA) Indexed Site

    Water Heating Characteristics by UrbanRural Location, 2005" " Million U.S. Housing Units" ,,"UrbanRural Location (as Self-Reported)" ,"Housing Units (millions)" "Water Heating ...

  17. " Million U.S. Housing Units"

    U.S. Energy Information Administration (EIA) Indexed Site

    8 Water Heating Characteristics by Type of Housing Unit, 2005" " Million U.S. Housing ... Units",,"Apartments in Buildings With--" "Water Heating Characteristics",,"Detached","Atta...

  18. United Nations Industrial Development Organization Feed | Open...

    Open Energy Info (EERE)

    US Savannah River National Laboratory (SRNL) UNEP-Risoe Centre on Energy, Climate and Sustainable Development United Nations Environment Programme (UNEP) United Nations...

  19. United Nations Foundation Feed | Open Energy Information

    Open Energy Info (EERE)

    US Savannah River National Laboratory (SRNL) UNEP-Risoe Centre on Energy, Climate and Sustainable Development United Nations Environment Programme (UNEP) United Nations...

  20. Photovoltaic Powering And Control System For Electrochromic Windows

    DOE Patents [OSTI]

    Schulz, Stephen C. (Tewksbury, MA); Michalski, Lech A. (Pennington, NJ); Volltrauer, Hermann N. (Englishtown, NJ); Van Dine, John E. (Faribault, MN)

    2000-04-25

    A sealed insulated glass unit is provided with an electrochromic device for modulating light passing through the unit. The electrochromic device is controlled from outside the unit by a remote control electrically unconnected to the device. Circuitry within the unit may be magnetically controlled from outside. The electrochromic device is powered by a photovoltaic cells. The photovoltaic cells may be positioned so that at least a part of the light incident on the cell passes through the electrochromic device, providing a form of feedback control. A variable resistance placed in parallel with the electrochromic element is used to control the response of the electrochromic element to changes in output of the photovoltaic cell.

  1. Low exhaust temperature electrically heated particulate matter filter system

    DOE Patents [OSTI]

    Gonze, Eugene V. (Pinckney, MI); Paratore, Jr., Michael J. (Howell, MI); Bhatia, Garima (Bangalore, IN)

    2012-02-14

    A system includes a particulate matter (PM) filter, a sensor, a heating element, and a control module. The PM filter includes with an upstream end that receives exhaust gas, a downstream end and multiple zones. The sensor detects a temperature of the exhaust gas. The control module controls current to the heating element to convection heat one of the zones and initiate a regeneration process. The control module selectively increases current to the heating element relative to a reference regeneration current level when the temperature is less than a predetermined temperature.

  2. Strong Orbital-selective Correlation Effects Unite Iron Chalcogenide

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Superconductors | Stanford Synchrotron Radiation Lightsource Strong Orbital-selective Correlation Effects Unite Iron Chalcogenide Superconductors Wednesday, September 30, 2015 Seven years ago when superconductivity was first discovered in the iron-based compounds (FeSCs), one of the very first questions in the field was to find out whether the physics governing superconductivity in these materials were the same or different from the only other known high temperature superconductors (HTSC) -

  3. Temperature-sensitive optrode

    DOE Patents [OSTI]

    Hirschfeld, T.B.

    1985-09-24

    Method and apparatus are provided for measuring temperature and for generating optical signals related to temperature. Light from a fiber optic is directed to a material whose fluorescent response varies with ambient temperature. The same fiber optic delivering the excitation beam also collects a portion of the fluorescent emission for analysis. Signal collection efficiency of the fiber optic is enhanced by requiring that the fluorescent probe material be in the shape of an oblong parabolically tapered solid. Reproducibility is enhanced by using Raman backscatter to monitor excitation beam fluctuations, and by using measurements of fluorescence lifetime. 10 figs.

  4. ARM - Measurement - Virtual temperature

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    govMeasurementsVirtual temperature ARM Data Discovery Browse Data Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Measurement : Virtual temperature The virtual temperature Tv = T(1 + rv/{epsilon}), where rv is the mixing ratio, and {epsilon} is the ratio of the gas constants of air and water vapor ( 0.622). Categories Atmospheric State Instruments The above measurement is considered scientifically relevant for the following instruments. Refer to

  5. Building America Case Study: Boiler Control Replacement for Hydronical...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    ... of the control parameters and provides real-time access to apartment temperature data. ... Boiler Control Replacement and Monitoring Study, at: buildingamerica.gov Image credit: All ...

  6. Temperature | Open Energy Information

    Open Energy Info (EERE)

    C Property:Combustion Intake Air Temperature F Property:FirstWellTemp G Property:GeochemReservoirTemp Property:GeofluidTemp M Property:MeanReservoirTemp R...

  7. High-Temperature Superconductivity

    ScienceCinema (OSTI)

    Peter Johnson

    2010-01-08

    Like astronomers tweaking images to gain a more detailed glimpse of distant stars, physicists at Brookhaven National Laboratory have found ways to sharpen images of the energy spectra in high-temperature superconductors ? materials that carry electrical c

  8. Low temperature cryoprobe

    DOE Patents [OSTI]

    Sungaila, Z.F.

    1988-04-12

    A portable, hand held probe usable within a small confine to produce a point source of nitrogen or helium at a relatively constant temperatures of 77 degrees Kelvin, is discussed. 3 figs.

  9. Penrose Well Temperatures

    SciTech Connect (OSTI)

    Christopherson, Karen

    2013-03-15

    Penrose Well Temperatures Geothermal waters have been encountered in several wells near Penrose in Fremont County, Colorado. Most of the wells were drilled for oil and gas exploration and, in a few cases, production. This ESRI point shapefile utilizes data from 95 wells in and around the Penrose area provided by the Colorado Oil and Gas Conservation Commission (COGCC) database at http://cogcc.state.co.us/ . Temperature data from the database were used to calculate a temperature gradient for each well. This information was then used to estimate temperatures at various depths. Projection: UTM Zone 13 NAD27 Extent: West -105.224871 East -105.027633 North 38.486269 South 38.259507 Originators: Colorado Oil and Gas Conservation Commission (COGCC) Karen Christopherson

  10. Low temperature reactive bonding

    DOE Patents [OSTI]

    Makowiecki, Daniel M. (Livermore, CA); Bionta, Richard M. (Livermore, CA)

    1995-01-01

    The joining technique requires no external heat source and generates very little heat during joining. It involves the reaction of thin multilayered films deposited on faying surfaces to create a stable compound that functions as an intermediate or braze material in order to create a high strength bond. While high temperatures are reached in the reaction of the multilayer film, very little heat is generated because the films are very thin. It is essentially a room temperature joining process.

  11. Temperature measuring device

    DOE Patents [OSTI]

    Lauf, Robert J. (Oak Ridge, TN); Bible, Don W. (Clinton, TN); Sohns, Carl W. (Oak Ridge, TN)

    1999-01-01

    Systems and methods are described for a wireless instrumented silicon wafer that can measure temperatures at various points and transmit those temperature readings to an external receiver. The device has particular utility in the processing of semiconductor wafers, where it can be used to map thermal uniformity on hot plates, cold plates, spin bowl chucks, etc. without the inconvenience of wires or the inevitable thermal perturbations attendant with them.

  12. High temperature pressure gauge

    DOE Patents [OSTI]

    Echtler, J. Paul (Pittsburgh, PA); Scandrol, Roy O. (Library, PA)

    1981-01-01

    A high temperature pressure gauge comprising a pressure gauge positioned in fluid communication with one end of a conduit which has a diaphragm mounted in its other end. The conduit is filled with a low melting metal alloy above the diaphragm for a portion of its length with a high temperature fluid being positioned in the remaining length of the conduit and in the pressure gauge.

  13. High Temperature Aqueous Chemistry

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Accurate knowledge of aqueous chemistry at high temperatures and pressures is important in many applications including nuclear waste disposal and energy extraction. Sandia's Defense Waste Management Programs is equipped with a state-of-the-art hydrothermal experimental system that allows us to obtain high quality kinetic and equilibrium data at temperatures and pressures of interest up to 600 o C and 1,000 bars (100 MPa). This state-of-the-art hydrothermal experimental system includes the

  14. ARM - Temperature Converter

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    CalculatorsTemperature Converter Outreach Home Room News Publications Traditional Knowledge Kiosks Barrow, Alaska Tropical Western Pacific Site Tours Contacts Students Study Hall About ARM Global Warming FAQ Just for Fun Meet our Friends Cool Sites Teachers Teachers' Toolbox Lesson Plans Temperature Converter The Fahrenheit scale, invented by German physicist Daniel Gabriel Fahrenheit (1686-1736), is based on 32 °F for the freezing point of water and 212 °F for the boiling point of water. The

  15. ABPDU - Advanced Biofuels Process Demonstration Unit

    SciTech Connect (OSTI)

    2011-01-01

    Lawrence Berkeley National Lab opened its Advanced Biofuels Process Demonstration Unit on Aug. 18, 2011.

  16. 1997 Housing Characteristics Tables Housing Unit Tables

    Gasoline and Diesel Fuel Update (EIA)

    Million U.S. Households; 45 pages, 128 kb) Contents Pages HC1-1a. Housing Unit Characteristics by Climate Zone, Million U.S. Households, 1997 4 HC1-2a. Housing Unit Characteristics by Year of Construction, Million U.S. Households, 1997 4 HC1-3a. Housing Unit Characteristics by Household Income, Million U.S. Households, 1997 4 HC1-4a. Housing Unit Characteristics by Type of Housing Unit, Million U.S. Households, 1997 3 HC1-5a. Housing Unit Characteristics by Type of Owner-Occupied Housing Unit,

  17. " Million Housing Units, Final"

    U.S. Energy Information Administration (EIA) Indexed Site

    Appliances in U.S. Homes, by Housing Unit Type, 2009" " Million Housing Units, Final" ,,"Housing Unit Type" ,,"Single-Family Units",,"Apartments in Buildings With" ,"Total U.S.1 (millions)" ,,,,,"5 or More Units","Mobile Homes" "Appliances",,"Detached","Attached","2 to 4 Units" "Total Homes",113.6,71.8,6.7,9,19.1,6.9 "Cooking Appliances" "Stoves (Units With

  18. Zeroing and testing units developed for Gerdien atmospheric ion detectors

    SciTech Connect (OSTI)

    Kolarz, P.; Marinkovic, B.P.; Filipovic, D.M.

    2005-04-01

    Low current measurements in atmospheric ion detection using a Gerdien condenser are subjected to numerous sources of error. Zeroing and testing units described in this article, connected as modules to this type of detector, enable some of these errors to be found and eliminated. The zeroing unit provides digital compensation of the zero drift with a digital sample and hold circuit of 12-bit resolution. It overcomes difficulties related to zero drift and techniques used in the zero conductivity determination when the accelerating potential or airflow rate are zero. The testing unit is a current reference of nominally 10{sup -12} A intended for testing and correcting the system on current leakage and other measuring deviations due to changes in atmospheric parameters. This unit is an independent battery-powered module, which provides a charge of 10{sup -12} C per cycle (frequency of order 1 Hz) to the collecting electrode. The control of Gerdien devices is substantially simplified using the zeroing and testing units realized here. Both units are used during 'zero conductivity' regime only.

  19. Temperature sensitive surfaces and methods of making same

    DOE Patents [OSTI]

    Liang, Liang [Richland, WA; Rieke, Peter C [Pasco, WA; Alford, Kentin L [Pasco, WA

    2002-09-10

    Poly-n-isopropylacrylamide surface coatings demonstrate the useful property of being able to switch charateristics depending upon temperature. More specifically, these coatings switch from being hydrophilic at low temperature to hydrophobic at high temperature. Research has been conducted for many years to better characterize and control the properties of temperature sensitive coatings. The present invention provides novel temperature sensitive coatings on articles and novel methods of making temperature sensitive coatings that are disposed on the surfaces of various articles. These novel coatings contain the reaction products of n-isopropylacrylamide and are characterized by their properties such as advancing contact angles. Numerous other characteristics such as coating thickness, surface roughness, and hydrophilic-to-hydrophobic transition temperatures are also described. The present invention includes articles having temperature-sensitve coatings with improved properties as well as improved methods for forming temperature sensitive coatings.

  20. United States Department of Energy

    Energy Savers [EERE]

    Washington, DC 20585 United States Department of Energy Office of Hearings and Appeals In the Matter of Tektronix , Inc. ) ) Case No. : EXS-16-0007 Filing Date: February 5, 2016 ) Issued: February 17, 2016 Decision and Order on Application for Stay On February 5, 201 6, Tektronix, Inc. (Tektronix) filed an Application for Stay from enforcemen t of the energy conservation standards for external power supp l ies set forth in DOE's February 2014 Energy Conservation Standard s for External Power

  1. United States Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    United States Department of Energy Office of Hearings and Appeals In the Matter of: Washington State ) Fleet Operations ) ) Filing Date: November 13, 2013 ) Case No.: EXA-13-0001 ____________________________________) Issued: February 27, 2014 _______________ Decision and Order _______________ This Decision and Order considers an Appeal filed by Washington State Fleet Operations (Washington) from a determination issued on September 25, 2013, by the Department of Energy's (DOE) Alternative Fuel

  2. United States Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    United States Department of Energy Office of Hearings and Appeals In the Matter of: Washington State ) Fleet Operations ) ) Filing Date: December 2, 2014 ) Case No.: AFV-14-0001 ____________________________________) Issued: December 18, 2014 _______________ Decision and Order _______________ This Decision and Order considers an Appeal filed by Washington State Fleet Operations (Washington) from a determination issued on November 10, 2014, by the Department of Energy's (DOE) Alternative Fuel

  3. UNITED STATES ATOMIC ENERGY COMMISSION

    Office of Legacy Management (LM)

    A.' +4 @4.dY MDDC - 1613 UNITED STATES ATOMIC ENERGY COMMISSION 34.27 : . Production of Rarer Metals by George Meister Westinghouse Electric Corporation This document consists ofllpages. Date of ianuscrtpt: unknown Date Declassified: February 11, 1948 This document is issued for official use. Its issuance does not constitute authority to declassify coptes or versions of the same or similar content and title and by the same author(s). Technical Information Division. Oak Ridge DIrected Operations

  4. UNITED STATES GOVERNIMI~NT

    Office of Legacy Management (LM)

    .;. ,! r ?- 1; ,: ( ,T UNITED STATES GOVERNIMI~NT 7.;; ,:;$ _ a, -;::I-;. t, ,. :., .~, . ,.,,, : Thomas J. McCarvill, Chief, Physical Exploration Branch, Division of Baw : Reginald W. Bdmonds, Mining Engineer Division of Raw Naterials SUBJECT: MONAZITB DREDGING OPERATIONS AhD PLACER DEPOSITS CONTAINING TBOL~IIJM MINER&S SYXBOL: B&PM3 While at the Bureau of Mines office on June 2, 1955, Mr. Prank Lamb gave me the following information: The contract covering monazite production between

  5. Next Generation Rooftop Unit | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Emerging Technologies » Next Generation Rooftop Unit Next Generation Rooftop Unit The U.S. Department of Energy is currently conducting research in a next generation rooftop unit (RTU). More than half of U.S. commercial building space is cooled by packaged heating, ventilation, and air conditioning (HVAC) equipment. Existing rooftop HVAC units consume more than 1.3% of the United States' annual energy usage annually. Project Description This project seeks to evaluate optimal design strategies

  6. " Million Housing Units, Final"

    U.S. Energy Information Administration (EIA) Indexed Site

    2 Appliances in U.S. Homes, by Owner/Renter Status, 2009" " Million Housing Units, Final" ,,,,"Housing Unit Type" ,,,,"Single-Family Units",,,,"Apartments in Buildings With" ,"Total U.S.1 (millions)",,,"Detached",,"Attached",,"2 to 4 Units",,"5 or More Units",,"Mobile Homes"

  7. Waste management units - Savannah River Site

    SciTech Connect (OSTI)

    Not Available

    1989-10-01

    This report is a compilation of worksheets from the waste management units of Savannah River Plant. Information is presented on the following: Solid Waste Management Units having received hazardous waste or hazardous constituents with a known release to the environment; Solid Waste Management Units having received hazardous waste or hazardous constituents with no known release to the environment; Solid Waste Management Units having received no hazardous waste or hazardous constituents; Waste Management Units having received source; and special nuclear, or byproduct material only.

  8. Next Generation Rooftop Unit | Department of Energy

    Energy Savers [EERE]

    Unit Next Generation Rooftop Unit A typical commercial rooftop air-conditioning unit (RTU) Credit: Oak Ridge National Lab A typical commercial rooftop air-conditioning unit (RTU) Credit: Oak Ridge National Lab Interior of lab prototype RTU under construction, taken during 2nd quarter of FY 14. Credit: Oak Ridge National Lab Interior of lab prototype RTU under construction, taken during 2nd quarter of FY 14. Credit: Oak Ridge National Lab A typical commercial rooftop air-conditioning unit (RTU)

  9. DPF for a Tractor Auxiliary Power Unit | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    for a Tractor Auxiliary Power Unit DPF for a Tractor Auxiliary Power Unit Poster presentation at the 2007 Diesel Engine-Efficiency & Emissions Research Conference (DEER 2007). 13-16 August, 2007, Detroit, Michigan. Sponsored by the U.S. Department of Energy's (DOE) Office of FreedomCAR and Vehicle Technologies (OFCVT). PDF icon deer07_servati.pdf More Documents & Publications Active DPF for Off-Road Particulate Matter (PM) Control A Low-Cost Continuous Emissions Monitoring System for

  10. DEVICE CONTROLLER, CAMERA CONTROL

    Energy Science and Technology Software Center (OSTI)

    1998-07-20

    This is a C++ application that is the server for the cameral control system. Devserv drives serial devices, such as cameras and videoswitchers used in a videoconference, upon request from a client such as the camxfgbfbx ccint program. cc Deverv listens on UPD ports for clients to make network contractions. After a client connects and sends a request to control a device (such as to pan,tilt, or zooma camera or do picture-in-picture with a videoswitcher),more » devserv formats the request into an RS232 message appropriate for the device and sends this message over the serial port to which the device is connected. Devserv then reads the reply from the device from the serial port to which the device is connected. Devserv then reads the reply from the device from the serial port and then formats and sends via multicast a status message. In addition, devserv periodically multicasts status or description messages so that all clients connected to the multicast channel know what devices are supported and their ranges of motion and the current position. The software design employs a class hierarchy such that an abstract base class for devices can be subclassed into classes for various device categories(e.g. sonyevid30, cononvco4, panasonicwjmx50, etc.). which are further subclassed into classes for various device categories. The devices currently supported are the Sony evi-D30, Canon, VCC1, Canon VCC3, and Canon VCC4 cameras and the Panasonic WJ-MX50 videoswitcher. However, developers can extend the class hierarchy to support other devices.« less

  11. United States National Seismographic Network

    SciTech Connect (OSTI)

    Buland, R.

    1993-09-01

    The concept of a United States National Seismograph Network (USNSN) dates back nearly 30 years. The idea was revived several times over the decades. but never funded. For, example, a national network was proposed and discussed at great length in the so called Bolt Report (U. S. Earthquake Observatories: Recommendations for a New National Network, National Academy Press, Washington, D.C., 1980, 122 pp). From the beginning, a national network was viewed as augmenting and complementing the relatively dense, predominantly short-period vertical coverage of selected areas provided by the Regional Seismograph Networks (RSN`s) with a sparse, well-distributed network of three-component, observatory quality, permanent stations. The opportunity finally to begin developing a national network arose in 1986 with discussions between the US Geological Survey (USGS) and the Nuclear Regulatory Commission (NRC). Under the agreement signed in 1987, the NRC has provided $5 M in new funding for capital equipment (over the period 1987-1992) and the USGS has provided personnel and facilities to develop. deploy, and operate the network. Because the NRC funding was earmarked for the eastern United States, new USNSN station deployments are mostly east of 105{degree}W longitude while the network in the western United States is mostly made up of cooperating stations (stations meeting USNSN design goals, but deployed and operated by other institutions which provide a logical extension to the USNSN).

  12. Stormwater Controls

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Stormwater Controls Stormwater Controls Originally built to provide drinking water, the Los Alamos Canyon Reservoir now serves to keep flow at safe levels and slow down flood...

  13. High temperature thermometric phosphors

    DOE Patents [OSTI]

    Allison, S.W.; Cates, M.R.; Boatner, L.A.; Gillies, G.T.

    1999-03-23

    A high temperature phosphor consists essentially of a material having the general formula LuPO{sub 4}:Dy{sub x},Eu{sub y} wherein: 0.1 wt % {<=} x {<=} 20 wt % and 0.1 wt % {<=} y {<=} 20 wt %. The high temperature phosphor is in contact with an article whose temperature is to be determined. The article having the phosphor in contact with it is placed in the environment for which the temperature of the article is to be determined. The phosphor is excited by a laser causing the phosphor to fluoresce. The emission from the phosphor is optically focused into a beam-splitting mirror which separates the emission into two separate emissions, the emission caused by the dysprosium dopant and the emission caused by the europium dopant. The separated emissions are optically filtered and the intensities of the emission are detected and measured. The ratio of the intensity of each emission is determined and the temperature of the article is calculated from the ratio of the intensities of the separate emissions. 2 figs.

  14. High temperature thermometric phosphors

    DOE Patents [OSTI]

    Allison, Stephen W.; Cates, Michael R.; Boatner, Lynn A.; Gillies, George T.

    1999-03-23

    A high temperature phosphor consists essentially of a material having the general formula LuPO.sub.4 :Dy.sub.(x),Eu.sub.y) wherein: 0.1 wt %.ltoreq.x.ltoreq.20 wt % and 0.1 wt %.ltoreq.y.ltoreq.20 wt %. The high temperature phosphor is in contact with an article whose temperature is to be determined. The article having the phosphor in contact with it is placed in the environment for which the temperature of the article is to be determined. The phosphor is excited by a laser causing the phosphor to fluoresce. The emission from the phosphor is optically focused into a beam-splitting mirror which separates the emission into two separate emissions, the emission caused by the dysprosium dopant and the emission caused by the europium dopent. The separated emissions are optically filtered and the intensities of the emission are detected and measured. The ratio of the intensity of each emission is determined and the temperature of the article is calculated from the ratio of the intensities of the separate emissions.

  15. Optimization of an Advanced Passive/Active Diesel Emission Control...

    Broader source: Energy.gov (indexed) [DOE]

    More Documents & Publications Diesel Particulate Filters and NO2 Emission Limits Active Diesel Emission Control Technology for Transport Refrigeration Units Active Diesel Emission ...

  16. A Hierarchical Framework for Demand-Side Frequency Control (Conference...

    Office of Scientific and Technical Information (OSTI)

    Resource Relation: Conference: American Control Conference (ACC 2014), June 4-6, 2014, Portland, Oregon, 52-57 Publisher: IEEE, Piscataway, NJ, United States(US). Research Org: ...

  17. Method And Apparatus For Evaluatin Of High Temperature Superconductors

    DOE Patents [OSTI]

    Fishman, Ilya M.; Kino, Gordon S.

    1996-11-12

    A technique for evaluation of high-T.sub.c superconducting films and single crystals is based on measurement of temperature dependence of differential optical reflectivity of high-T.sub.c materials. In the claimed method, specific parameters of the superconducting transition such as the critical temperature, anisotropy of the differential optical reflectivity response, and the part of the optical losses related to sample quality are measured. The apparatus for performing this technique includes pump and probe sources, cooling means for sweeping sample temperature across the critical temperature and polarization controller for controlling a state of polarization of a probe light beam.

  18. High temperature lubricating process

    DOE Patents [OSTI]

    Taylor, Robert W. (Livermore, CA); Shell, Thomas E. (Livermore, CA)

    1982-01-01

    It has been difficult to provide adaquate lubrication for load bearing, engine components when such engines are operating in excess of about 475.degree. C. The present invention is a process for providing a solid lubricant on a load bearing, solid surface (14), such as in an engine (10) being operated at temperatures in excess of about 475.degree. C. The process comprises contacting and maintaining steps. A gas phase (42) is provided which includes at least one component reactable in a temperature dependent reaction to form a solid lubricant. The gas phase is contacted with the load bearing surface. The load bearing surface is maintained at a temperature which causes reaction of the gas phase component and the formation of the solid lubricant. The solid lubricant is formed directly on the load bearing surface. The method is particularly suitable for use with ceramic engines.

  19. Temperature profile detector

    DOE Patents [OSTI]

    Tokarz, R.D.

    1983-10-11

    Disclosed is a temperature profile detector shown as a tubular enclosure surrounding an elongated electrical conductor having a plurality of meltable conductive segments surrounding it. Duplicative meltable segments are spaced apart from one another along the length of the enclosure. Electrical insulators surround these elements to confine molten material from the segments in bridging contact between the conductor and a second electrical conductor, which might be the confining tube. The location and rate of growth of the resulting short circuits between the two conductors can be monitored by measuring changes in electrical resistance between terminals at both ends of the two conductors. Additional conductors and separate sets of meltable segments operational at differing temperatures can be monitored simultaneously for measuring different temperature profiles. 8 figs.

  20. Temperature initiated passive cooling system

    DOE Patents [OSTI]

    Forsberg, C.W.

    1994-11-01

    A passive cooling system for cooling an enclosure only when the enclosure temperature exceeds a maximum standby temperature comprises a passive heat transfer loop containing heat transfer fluid having a particular thermodynamic critical point temperature just above the maximum standby temperature. An upper portion of the heat transfer loop is insulated to prevent two phase operation below the maximum standby temperature. 1 fig.

  1. Temperature initiated passive cooling system

    DOE Patents [OSTI]

    Forsberg, Charles W.

    1994-01-01

    A passive cooling system for cooling an enclosure only when the enclosure temperature exceeds a maximum standby temperature comprises a passive heat transfer loop containing heat transfer fluid having a particular thermodynamic critical point temperature just above the maximum standby temperature. An upper portion of the heat transfer loop is insulated to prevent two phase operation below the maximum standby temperature.

  2. Reservoir Temperature Estimator

    Energy Science and Technology Software Center (OSTI)

    2014-12-08

    The Reservoir Temperature Estimator (RTEst) is a program that can be used to estimate deep geothermal reservoir temperature and chemical parameters such as CO2 fugacity based on the water chemistry of shallower, cooler reservoir fluids. This code uses the plugin features provided in The Geochemist’s Workbench (Bethke and Yeakel, 2011) and interfaces with the model-independent parameter estimation code Pest (Doherty, 2005) to provide for optimization of the estimated parameters based on the minimization of themore » weighted sum of squares of a set of saturation indexes from a user-provided mineral assemblage.« less

  3. Fluorescent temperature sensor

    DOE Patents [OSTI]

    Baker, Gary A [Los Alamos, NM; Baker, Sheila N [Los Alamos, NM; McCleskey, T Mark [Los Alamos, NM

    2009-03-03

    The present invention is a fluorescent temperature sensor or optical thermometer. The sensor includes a solution of 1,3-bis(1-pyrenyl)propane within a 1-butyl-1-1-methylpyrrolidinium bis(trifluoromethylsulfonyl)imide ionic liquid solvent. The 1,3-bis(1-pyrenyl)propane remains unassociated when in the ground state while in solution. When subjected to UV light, an excited state is produced that exists in equilibrium with an excimer. The position of the equilibrium between the two excited states is temperature dependent.

  4. Low temperature reactive bonding

    DOE Patents [OSTI]

    Makowiecki, D.M.; Bionta, R.M.

    1995-01-17

    The joining technique is disclosed that requires no external heat source and generates very little heat during joining. It involves the reaction of thin multilayered films deposited on faying surfaces to create a stable compound that functions as an intermediate or braze material in order to create a high strength bond. While high temperatures are reached in the reaction of the multilayer film, very little heat is generated because the films are very thin. It is essentially a room temperature joining process. 5 figures.

  5. Temperature determination using pyrometry

    DOE Patents [OSTI]

    Breiland, William G.; Gurary, Alexander I.; Boguslavskiy, Vadim

    2002-01-01

    A method for determining the temperature of a surface upon which a coating is grown using optical pyrometry by correcting Kirchhoff's law for errors in the emissivity or reflectance measurements associated with the growth of the coating and subsequent changes in the surface thermal emission and heat transfer characteristics. By a calibration process that can be carried out in situ in the chamber where the coating process occurs, an error calibration parameter can be determined that allows more precise determination of the temperature of the surface using optical pyrometry systems. The calibration process needs only to be carried out when the physical characteristics of the coating chamber change.

  6. Progress Toward Operable Unit 1 Groundwater Cleanup at the Mound, Ohio, Site

    Broader source: Energy.gov [DOE]

    Groundwater in Operable Unit 1 (OU-1) has been impacted by volatile organic compound (VOC)-contaminated materials in the former solid waste landfill. The remedy for controlling contamination from...

  7. Ch. VII, Temperature, heat flow maps and temperature gradient...

    Open Energy Info (EERE)

    Report: Ch. VII, Temperature, heat flow maps and temperature gradient holes Author T. G. Zacharakis Editor T. G. Zacharakis Published Colorado Geological Survey in Cooperation...

  8. Temperature, heat flow maps and temperature gradient holes |...

    Open Energy Info (EERE)

    to library Report: Temperature, heat flow maps and temperature gradient holes Author T. G. Zacharakis Organization Colorado Geological Survey in Cooperation with the U.S....

  9. Investigating Temperature Effects on PV Arrays

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Schmidt Unit Title: Circuits and Electricity Subject: Physics Lesson Title: Investigating Temperature Effects on PV Arrays Grade Level(s): 11/12 Date(s): July 18, 2014 Lesson Length: 1 Class Period (65 minutes) * Learning Goal(s) [What should students know, understand, or be able to do as a result of this lab or activity.] Students will be able to measure current and voltage using a Multimeter. Students will be able to calculate the power of a PV array using voltage and current. Students will

  10. High temperature solid oxide fuel development activities

    SciTech Connect (OSTI)

    Ray, E.R.

    1993-11-01

    This paper presents an overview of the Westinghouse tubular SOFC development activities and current program status. Goal is to develop a cell that can operate for 50,000 to 100,000 h. Test results are presented for multiple single cell tests which have now successfully exceeded 40,000 hours of continuous power operation at temperature. Two 25-kW SOFC customer tests units were delivered in 1992; a 20-kW SOFC system is bein manufactured and will be operated by Southern California Edison in 1995. Megawatt class generators are being developed.

  11. 1997 Housing Characteristics Tables Housing Unit Tables

    Gasoline and Diesel Fuel Update (EIA)

    Percent of U.S. Households; 45 pages, 121 kb) Contents Pages HC1-1b. Housing Unit Characteristics by Climate Zone, Percent of U.S. Households, 1997 4 HC1-2b. Housing Unit Characteristics by Year of Construction, Percent of U.S. Households, 1997 4 HC1-3b. Housing Unit Characteristics by Household Income, Percent of U.S. Households, 1997 4 HC1-4b. Housing Unit Characteristics by Type of Housing Unit, Percent of U.S. Households, 1997 3 HC1-5b. Housing Unit Characteristics by Type of Owner-Occupied

  12. " Million Housing Units, Final"

    U.S. Energy Information Administration (EIA) Indexed Site

    Air Conditioning in U.S. Homes, by Housing Unit Type, 2009" " Million Housing Units, Final" ,,"Housing Unit Type" ,,"Single-Family Units",,"Apartments in Buildings With" ,"Total U.S.1 (millions)" ,," Detached"," Attached"," 2 to 4 Units","5 or More Units","Mobile Homes" "Air Conditioning" "Total Homes",113.6,71.8,6.7,9,19.1,6.9 "Air Conditioning Equipment"

  13. Second United Nations International Conference

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    A/C0NF.15/P/2H57 U.S.A. June 1958 ORIGINAL: ENGLISH Confidential until official release during Conference THE EOLE OF ATOMIC EMERGY IN THE PRCMOTIOH OF INTERNATIONAL COLLABORATION By I. I. R a M This Second United Nations Conference on Peaceful Uses of Atomic Energy with its thousemds of participsmts and its vast and elaborate exhibits is in itself the strongest indication of the importance of the role of atomic energy in stimulating international collaboration for all peaceful purposes. I say

  14. United States Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Don Joiner ) ) Case No.: FIA-14-0016 Filing Date: March 4, 2014 ) ) Issued: March 13, 2014 _______________ Decision and Order _______________ On March 4, 2014, Don Joiner ("Appellant") filed an Appeal from a determination issued to him by the Idaho Operations Office ("IOO") of the United States Department of Energy ("DOE") (FOIA Request Number FOIA-14-00530-F/OM-PA-14-006). In its determination, IOO responded to the Appellant's request for information filed under

  15. E-831 United States Government

    Office of Legacy Management (LM)

    bOE 51325.8 - E-831 United States Government memorandum pa? 1.- -g..bJ %i7Dm--~, I' )! f&,:& Department of Energy DATE: OCT 9 1984 REPLY T O NE-20 ATTN OF: Authorizations for Actions Under the Formerly Utilized Sites Remedial Action SUBJECT: Program (FUSRAP) at the St. Louis Airport Storage Site, St. Louis, M O . and the W . R. Grace Site at Curtis Bay, Md. To: J. LaGrone, Manager Oak Ridge Operations O ffice St. Louis Airport Storage Site, M O The House and Senate Reports for the Energy

  16. Temperature differential detection device

    DOE Patents [OSTI]

    Girling, P.M.

    1986-04-22

    A temperature differential detection device for detecting the temperature differential between predetermined portions of a container wall is disclosed as comprising a Wheatstone bridge circuit for detecting resistance imbalance with a first circuit branch having a first elongated wire element mounted in thermal contact with a predetermined portion of the container wall, a second circuit branch having a second elongated wire element mounted in thermal contact with a second predetermined portion of a container wall with the wire elements having a predetermined temperature-resistant coefficient, an indicator interconnected between the first and second branches remote from the container wall for detecting and indicating resistance imbalance between the first and second wire elements, and connector leads for electrically connecting the wire elements to the remote indicator in order to maintain the respective resistance value relationship between the first and second wire elements. The indicator is calibrated to indicate the detected resistance imbalance in terms of a temperature differential between the first and second wall portions. 2 figs.

  17. Temperature differential detection device

    DOE Patents [OSTI]

    Girling, Peter M.

    1986-01-01

    A temperature differential detection device for detecting the temperature differential between predetermined portions of a container wall is disclosed as comprising a Wheatstone bridge circuit for detecting resistance imbalance with a first circuit branch having a first elongated wire element mounted in thermal contact with a predetermined portion of the container wall, a second circuit branch having a second elongated wire element mounted in thermal contact with a second predetermined portion of a container wall with the wire elements having a predetermined temperature-resistant coefficient, an indicator interconnected between the first and second branches remote from the container wall for detecting and indicating resistance imbalance between the first and second wire elements, and connector leads for electrically connecting the wire elements to the remote indicator in order to maintain the respective resistance value relationship between the first and second wire elements. The indicator is calibrated to indicate the detected resistance imbalance in terms of a temperature differential between the first and second wall portions.

  18. Gemini Scout Control Software

    Energy Science and Technology Software Center (OSTI)

    2010-11-23

    The Gemini Scout Control Software consists of two Windows applications that allow the Gemini Scout vehicle to be controlled by an operator. The Embedded application runs on the vehicle's Gemini Scout Control Software onboard computer and controls the vehicle's various motors and sensors. This application reports the vehicle's status and receives vehicle commands overthe local-area-network. The Embedded applicationalso allows the user to control the vehicle using a USB game-pad connected directly to the vehicle. Themore »Operator Control Unit (OCU) application runs on an external PC and communicates with the vehicle via an Ethernet connection. The OCU application sends commands to and receives data from the Embedded application running on the vehicle. The OCU application also communicates directly with the digital video encoders and radios in order to display video from the vehicle's cameras and the status of the radio link. The OCU application has a graphical user interface (GUI) that displays the vehicle's status and allows the user to change various vehicle settings. Finally, the OCU application receives input from a USB game-pad connected to the PC in order to control the vehicle's functions.« less

  19. An optical gas temperature probe for high temperature fossil fuel process streams

    SciTech Connect (OSTI)

    Bauman, L.E.; Cook, R.L.; Lineberry, J.T.; Litchford, R.J.

    1995-12-31

    Reported here are the results of a feasibility study of a modular optical gas temperature probe for direct measurement of gas temperature in fossil-fueled combustion streams. A probe based upon the spectroscopic technique of line reversal would be superior to currently available gas temperature technology. The study concluded that a modular form of the line reversal optical temperature probe is feasible and, as such. the probe should be a commercially viable product with potential economic benefits from improved monitoring and control of utility furnaces. Such a probe will have the capability of making direct measurements of gas temperature in hot (>1500 K) process streams of coal combustion systems and large-scale power plant facilities.

  20. Enviro Control Ltd ECL | Open Energy Information

    Open Energy Info (EERE)

    Ltd ECL Jump to: navigation, search Name: Enviro-Control Ltd (ECL) Place: Cardiff, United Kingdom Zip: CF2 7HP Product: A developer of proprietary thermophilic anaerobic digestion...

  1. NREL Job Task Analysis: Quality Control Inspector

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    DE-AC36-08GO28308 NREL Job Task Analysis: Quality Control Inspector Chuck Kurnik National ... constitute or imply its endorsement, recommendation, or favoring by the United States ...

  2. Status of the fluidized bed unit

    SciTech Connect (OSTI)

    Williams, P.M.; Wade, J.F.

    1994-06-01

    Rocky Flats has a serious mixed waste problem. No technology or company has a license and available facilities to remedy this dilemma. One solution under study is to use a catalytic fluidized bed unit to destroy the combustible portion of the mixed waste. The fluidized bed thermal treatment program at Rocky Flats is building on knowledge gained over twenty years of successful development activity. The FBU has numerous technical advantages over other thermal technologies to treat Rocky Flats` mixed waste, the largest being the lower temperature (700{degrees}C versus 1000{degrees}C) which reduces acid corrosion and mechanical failures and obviates the need for ceramic lining. Successful demonstrations have taken place on bench, pilot, and full-scale tests using radioactive mixed wastes. The program is approaching implementation and licensing of a production-scale fluidized bed system for the safe treatment of mixed waste. The measure for success on this project is the ability to work closely with the community to jointly solve problems and respond to concerns of mixed waste treatment at Rocky Flats.

  3. A mathematical model for the estimation of flue temperature in a coke oven

    SciTech Connect (OSTI)

    Choi, K.I.; Kim, S.Y.; Suo, J.S.; Hur, N.S.; Kang, I.S.; Lee, W.J.

    1997-12-31

    The coke plants at the Kwangyang works has adopted an Automatic Battery Control (ABC) system which consists of four main parts, battery heating control, underfiring heat and waste gas oxygen control, pushing and charging schedule and Autotherm-S that measures heating wall temperature during pushing. The measured heating wall temperature is used for calculating Mean Battery Temperature (MBT) which is average temperature of flues for a battery, but the Autotherm-S system can not provide the flue temperatures of an oven. This work attempted to develop mathematical models for the estimation of the flue temperature using the measured heating wall temperature and to examine fitness of the mathematical model for the coke plant operation by analysis of raw gas temperature at the stand pipe. Through this work it is possible to reflect heating wall temperature in calculating MBT for battery heating control without the interruption caused by a maintenance break.

  4. High Temperature Membrane Working Group

    Broader source: Energy.gov [DOE]

    The High Temperature Membrane Working Group consists of government, industry, and university researchers interested in developing high temperature membranes for fuel cells.

  5. ARM - Measurement - Sea surface temperature

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Sea surface temperature The temperature of sea water near the surface. Categories Surface Properties Instruments The above measurement is considered scientifically relevant for the...

  6. NUCLEAR REACTOR CONTROL SYSTEM

    DOE Patents [OSTI]

    Howard, D.F.; Motta, E.E.

    1961-06-27

    A method for controlling the excess reactivity in a nuclear reactor throughout the core life while maintaining the neutron flux distribution at the desired level is described. The control unit embodies a container having two electrodes of different surface area immersed in an electrolytic solution of a good neutron sbsorbing metal ion such as boron, gadolinium, or cadmium. Initially, the neutron absorber is plated on the larger electrode to control the greater neutron flux of a freshly refueled core. As the fuel burns up, the excess reactivity decreases and the neutron absorber is then plated onto the smaller electrode so that the number of neutrons absorbed also decreases. The excess reactivity in the core may thus be maintained without the introduction of serious perturbations in the neutron flux distributibn.

  7. A microcomputer-controlled linear heater

    SciTech Connect (OSTI)

    Schuck, V.; Rahimi, S. )

    1991-10-01

    In this note the circuits and principles of operation of a relatively simple and inexpensive linear temperature ramp generator are described. The upper-temperature limit and the heating rate are controlled by an Apple II microcomputer. The temperature versus time is displayed on the screen and may be plotted by an {ital x}-{ital y} plotter.

  8. Active Fault Controls At High-Temperature Geothermal Sites- Prospectin...

    Open Energy Info (EERE)

    model in which recently active (Holocene) faults are preferred conduits for migration of thermal water from deep crustal depths, and we infer that the detection of sites...

  9. United Ethanol LLC | Open Energy Information

    Open Energy Info (EERE)

    United Ethanol LLC Place: Wisconsin Product: Developed a 43m gallon ethanol plant in Milton, Wisconsin. References: United Ethanol LLC1 This article is a stub. You can help...

  10. First United Ethanol LLC | Open Energy Information

    Open Energy Info (EERE)

    Ethanol LLC Jump to: navigation, search Name: First United Ethanol LLC Place: Camilla, Georgia Zip: 31730 Product: First United Ethanol LLC (FUEL) was formed to construct a 100 MGY...

  11. Hills Creek Powerhouse Turbine and Unit Rehabilitation

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Hills Creek Powerhouse Turbine and Unit Rehabilitation This project will replace the runners and windings for the two 17.5 MW units at the Hills Creek powerhouse. Hills Creek is a...

  12. Alternator control for battery charging

    DOE Patents [OSTI]

    Brunstetter, Craig A.; Jaye, John R.; Tallarek, Glen E.; Adams, Joseph B.

    2015-07-14

    In accordance with an aspect of the present disclosure, an electrical system for an automotive vehicle has an electrical generating machine and a battery. A set point voltage, which sets an output voltage of the electrical generating machine, is set by an electronic control unit (ECU). The ECU selects one of a plurality of control modes for controlling the alternator based on an operating state of the vehicle as determined from vehicle operating parameters. The ECU selects a range for the set point voltage based on the selected control mode and then sets the set point voltage within the range based on feedback parameters for that control mode. In an aspect, the control modes include a trickle charge mode and battery charge current is the feedback parameter and the ECU controls the set point voltage within the range to maintain a predetermined battery charge current.

  13. Zero Temperature Hope Calculations

    SciTech Connect (OSTI)

    Rozsnyai, B F

    2002-07-26

    The primary purpose of the HOPE code is to calculate opacities over a wide temperature and density range. It can also produce equation of state (EOS) data. Since the experimental data at the high temperature region are scarce, comparisons of predictions with the ample zero temperature data provide a valuable physics check of the code. In this report we show a selected few examples across the periodic table. Below we give a brief general information about the physics of the HOPE code. The HOPE code is an ''average atom'' (AA) Dirac-Slater self-consistent code. The AA label in the case of finite temperature means that the one-electron levels are populated according to the Fermi statistics, at zero temperature it means that the ''aufbau'' principle works, i.e. no a priory electronic configuration is set, although it can be done. As such, it is a one-particle model (any Hartree-Fock model is a one particle model). The code is an ''ion-sphere'' model, meaning that the atom under investigation is neutral within the ion-sphere radius. Furthermore, the boundary conditions for the bound states are also set at the ion-sphere radius, which distinguishes the code from the INFERNO, OPAL and STA codes. Once the self-consistent AA state is obtained, the code proceeds to generate many-electron configurations and proceeds to calculate photoabsorption in the ''detailed configuration accounting'' (DCA) scheme. However, this last feature is meaningless at zero temperature. There is one important feature in the HOPE code which should be noted; any self-consistent model is self-consistent in the space of the occupied orbitals. The unoccupied orbitals, where electrons are lifted via photoexcitation, are unphysical. The rigorous way to deal with that problem is to carry out complete self-consistent calculations both in the initial and final states connecting photoexcitations, an enormous computational task. The Amaldi correction is an attempt to address this problem by distorting the outer part of the self-consistent potential in such a way that in the final state after photoexcitation or photoionization the newly occupied orbital sees the hole left in the initial state. This is very important to account for the large number of Rydberg states in the case of low densities. In the next Section we show calculated photoabsorptions compared with experimental data in figures with some rudimentary explanations.

  14. Low temperature ion source for calutrons

    DOE Patents [OSTI]

    Veach, Allen M. (Oak Ridge, TN); Bell, Jr., William A. (Oak Ridge, TN); Howell, Jr., George D. (Clinton, TN)

    1981-01-01

    A new ion source assembly for calutrons has been provided for the efficient separation of elements having high vapor pressures. The strategic location of cooling pads and improved insulation permits operation of the source at lower temperatures. A vapor valve constructed of graphite and located in a constantly increasing temperature gradient provides reliable control of the vapor flow from the charge bottle to the arc chamber. A pronounced saving in calutron operating time and equipment maintenance has been achieved with the use of the present ion source.

  15. Investigations of Low Temperature Time Dependent Cracking

    SciTech Connect (OSTI)

    Van der Sluys, W A; Robitz, E S; Young, B A; Bloom, J

    2002-09-30

    The objective of this project was to investigate metallurgical and mechanical phenomena associated with time dependent cracking of cold bent carbon steel piping at temperatures between 327 C and 360 C. Boiler piping failures have demonstrated that understanding the fundamental metallurgical and mechanical parameters controlling these failures is insufficient to eliminate it from the field. The results of the project consisted of the development of a testing methodology to reproduce low temperature time dependent cracking in laboratory specimens. This methodology was used to evaluate the cracking resistance of candidate heats in order to identify the factors that enhance cracking sensitivity. The resultant data was integrated into current available life prediction tools.

  16. Localized temperature stability of low temperature cofired ceramics

    DOE Patents [OSTI]

    Dai, Steven Xunhu

    2013-11-26

    The present invention is directed to low temperature cofired ceramic modules having localized temperature stability by incorporating temperature coefficient of resonant frequency compensating materials locally into a multilayer LTCC module. Chemical interactions can be minimized and physical compatibility between the compensating materials and the host LTCC dielectrics can be achieved. The invention enables embedded resonators with nearly temperature-independent resonance frequency.

  17. ITEM NO. SUPPLIES/SERVICES QUANTITY UNIT UNIT PRICE AMOUNT NAME...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    ITEM NO. SUPPLIESSERVICES QUANTITY UNIT UNIT PRICE AMOUNT NAME OF OFFEROR OR CONTRACTOR 2 4 CONTINUATION SHEET REFERENCE NO. OF DOCUMENT BEING CONTINUED PAGE OF COMPUTER SCIENCES...

  18. Waste management units: Savannah River Site

    SciTech Connect (OSTI)

    Molen, G.

    1991-09-01

    This report indexes every waste management unit of the Savannah River Site. They are indexed by building number and name. The waste units are also tabulated by solid waste units receiving hazardous materials with a known release or no known release to the environment. It also contains information on the sites which has received no hazardous waste, and units which have received source, nuclear, or byproduct material only. (MB)

  19. Full Scale Field Trial of the Low Temperature Mercury Capture Process

    SciTech Connect (OSTI)

    James Locke; Richard Winschel

    2011-09-30

    CONSOL Energy Inc., with partial funding from the Department of Energy (DOE) National Energy Technology Laboratory, designed a full-scale installation for a field trial of the Low-Temperature Mercury Control (LTMC) process, which has the ability to reduce mercury emissions from coal-fired power plants by over 90 percent, by cooling flue gas temperatures to approximately 230 °F and absorbing the mercury on the native carbon in the fly ash, as was recently demonstrated by CONSOL R&D on a slip-stream pilot plant at the Allegheny Energy Mitchell Station with partial support by DOE. LTMC has the potential to remove over 90 percent of the flue gas mercury at a cost at least an order of magnitude lower (on a $/lb mercury removed basis) than activated carbon injection. The technology is suitable for retrofitting to existing and new plants, and, although it is best suited to bituminous coal-fired plants, it may have some applicability to the full range of coal types. Installation plans were altered and moved from the original project host site, PPL Martins Creek plant, to a second host site at Allegheny Energy??s R. Paul Smith plant, before installation actually occurred at the Jamestown (New York) Board of Public Utilities (BPU) Samuel A. Carlson (Carlson) Municipal Generating Station Unit 12, where the LTMC system was operated on a limited basis. At Carlson, over 60% mercury removal was demonstrated by cooling the flue gas to 220-230 °F at the ESP inlet via humidification. The host unit ESP operation was unaffected by the humidification and performed satisfactorily at low temperature conditions.

  20. System and method for glass processing and temperature sensing

    DOE Patents [OSTI]

    Shepard, Chester L.; Cannon, Bret D.; Khaleel, Mohammad A.

    2004-09-28

    Techniques for measuring the temperature at various locations through the thickness of glass products and to control the glass processing operation with the sensed temperature information are disclosed. Fluorescence emission of iron or cerium in glass is excited and imaged onto segmented detectors. Spatially resolved temperature data are obtained through correlation of the detected photoluminescence signal with location within the glass. In one form the detected photoluminescence is compared to detected scattered excitation light to determine temperature. Stress information is obtained from the time history of the temperature profile data and used to evaluate the quality of processed glass. A heating or cooling rate of the glass is also controlled to maintain a predetermined desired temperature profile in the glass.

  1. I UNITED STATES NUCLEAR REGU.LATORYCOMMISS& REGION I

    Office of Legacy Management (LM)

    ' \*-'- I UNITED STATES NUCLEAR REGU.LATORYCOMMISS& REGION I 63, PARK AVENUE KING OF PRUSSIA. PENNSY LVANIA 19406 I..*. :+ 2 6 JUN 1979 2.lr.b The Commonwealth of Massachusetts Department of Public Health Division of Health Care Standards 8 Regulation ATTN: Mr. Gerald S. Parker, Director Radiation Control Programs 80 Boylston Street, Room 835 Boston, Massachusetts 02116 Dear Mr. Parker: Enclosed for your information and retention is a copy of the NRC, Region I Investigation Report No.

  2. High exhaust temperature, zoned, electrically-heated particulate matter filter

    DOE Patents [OSTI]

    Gonze, Eugene V.; Paratore, Jr., Michael J.; Bhatia, Garima

    2015-09-22

    A system includes a particulate matter (PM) filter, an electric heater, and a control circuit. The electric heater includes multiple zones, which each correspond to longitudinal zones along a length of the PM filter. A first zone includes multiple discontinuous sub-zones. The control circuit determines whether regeneration is needed based on an estimated level of loading of the PM filter and an exhaust flow rate. In response to a determination that regeneration is needed, the control circuit: controls an operating parameter of an engine to increase an exhaust temperature to a first temperature during a first period; after the first period, activates the first zone; deactivates the first zone in response to a minimum filter face temperature being reached; subsequent to deactivating the first zone, activates a second zone; and deactivates the second zone in response to the minimum filter face temperature being reached.

  3. High-Temperature Materials

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Temperature Materials - Sandia Energy Energy Search Icon Sandia Home Locations Contact Us Employee Locator Energy & Climate Secure & Sustainable Energy Future Stationary Power Energy Conversion Efficiency Solar Energy Wind Energy Water Power Supercritical CO2 Geothermal Natural Gas Safety, Security & Resilience of the Energy Infrastructure Energy Storage Nuclear Power & Engineering Grid Modernization Battery Testing Nuclear Fuel Cycle Defense Waste Management Programs Advanced

  4. Stormwater Controls

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Stormwater Controls Stormwater Controls Originally built to provide drinking water, the Los Alamos Canyon Reservoir now serves to keep flow at safe levels and slow down flood impacts. August 1, 2013 Los Alamos Canyon Reservoir Los Alamos Canyon Reservoir

  5. Quench monitoring and control system and method of operating same

    DOE Patents [OSTI]

    Ryan, David Thomas; Laskaris, Evangelos Trifon; Huang, Xianrui

    2006-05-30

    A rotating machine comprising a superconductive coil and a temperature sensor operable to provide a signal representative of superconductive coil temperature. The rotating machine may comprise a control system communicatively coupled to the temperature sensor. The control system may be operable to reduce electric current in the superconductive coil when a signal representative of a defined superconducting coil temperature is received from the temperature sensor.

  6. Project Controls

    Broader source: Directives, Delegations, and Requirements [Office of Management (MA)]

    1997-03-28

    Project controls are systems used to plan, schedule, budget, and measure the performance of a project/program. The cost estimation package is one of the documents that is used to establish the baseline for project controls. This chapter gives a brief description of project controls and the role the cost estimation package plays.

  7. EFM units monitor gas flow

    SciTech Connect (OSTI)

    Not Available

    1994-02-01

    This paper describes the radio-controlled pipeline monitoring system established by Transcontinental Gas Pipe Line Corp. which was designed to equip all its natural gas purchasing metering facilities with electronic flow measurement computers. The paper describes the actual radio equipment used and the features and reliability of the equipment.

  8. High Temperature Membrane Working Group

    Broader source: Energy.gov [DOE]

    This presentation provides an overview of the High Temperature Membrane Working Group Meeting in May 2007.

  9. Controlling Graphene's Electronic Structure

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Controlling Graphene's Electronic Structure Print Graphene, because of its unusual electron properties, reduced dimensionality, and scale, has enormous potential for use in ultrafast electronic transistors. It exhibits high conductivity and an anomalous quantum Hall effect (a phenomenon exhibited by certain semiconductor devices at low temperatures and high magnetic fields). Among its novel properties, graphene's electrical charge carriers (electrons and holes) move through a solid with

  10. Controlling Graphene's Electronic Structure

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Controlling Graphene's Electronic Structure Print Graphene, because of its unusual electron properties, reduced dimensionality, and scale, has enormous potential for use in ultrafast electronic transistors. It exhibits high conductivity and an anomalous quantum Hall effect (a phenomenon exhibited by certain semiconductor devices at low temperatures and high magnetic fields). Among its novel properties, graphene's electrical charge carriers (electrons and holes) move through a solid with

  11. Controlling Graphene's Electronic Structure

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Controlling Graphene's Electronic Structure Print Graphene, because of its unusual electron properties, reduced dimensionality, and scale, has enormous potential for use in ultrafast electronic transistors. It exhibits high conductivity and an anomalous quantum Hall effect (a phenomenon exhibited by certain semiconductor devices at low temperatures and high magnetic fields). Among its novel properties, graphene's electrical charge carriers (electrons and holes) move through a solid with

  12. Controlling Graphene's Electronic Structure

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Controlling Graphene's Electronic Structure Print Graphene, because of its unusual electron properties, reduced dimensionality, and scale, has enormous potential for use in ultrafast electronic transistors. It exhibits high conductivity and an anomalous quantum Hall effect (a phenomenon exhibited by certain semiconductor devices at low temperatures and high magnetic fields). Among its novel properties, graphene's electrical charge carriers (electrons and holes) move through a solid with

  13. Controlling Graphene's Electronic Structure

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Controlling Graphene's Electronic Structure Print Graphene, because of its unusual electron properties, reduced dimensionality, and scale, has enormous potential for use in ultrafast electronic transistors. It exhibits high conductivity and an anomalous quantum Hall effect (a phenomenon exhibited by certain semiconductor devices at low temperatures and high magnetic fields). Among its novel properties, graphene's electrical charge carriers (electrons and holes) move through a solid with

  14. " Million Housing Units, Final"

    U.S. Energy Information Administration (EIA) Indexed Site

    2 Structural and Geographic Characteristics of U.S. Homes, by Owner/Renter Status, 2009" " Million Housing Units, Final" ,,,,"Housing Unit Type" ,,,,"Single-Family Units",,,,"Apartments in Buildings With" ,,,,"Detached",,"Attached",,"2 to 4 Units",,"5 or More Units",,"Mobile Homes" ,"Total U.S.1 (millions)" "Structural and Geographic

  15. AAPG Low-Temperature Webinar

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Program Name or Ancillary Text eere.energy.gov Low Temperature Geothermal Resources Tim Reinhardt Low Temperature and Coproduced Resources Team Lead Geothermal Technologies Program U.S. Department of Energy AAPG's Low Temperature Webinar November 18, 2010 Energy Efficiency & Renewable Energy eere.energy.gov Presentation Overview * What are Low Temperature Geothermal Resources? * Where do low temperature geothermal resources fit within petroleum exploration and production? * What is

  16. High temperature detonator

    DOE Patents [OSTI]

    Johnson, James O. (Los Alamos, NM); Dinegar, Robert H. (Los Alamos, NM)

    1988-01-01

    A detonator assembly is provided which is usable at high temperatures about 300.degree. C. A detonator body is provided with an internal volume defining an anvil surface. A first acceptor explosive is disposed on the anvil surface. A donor assembly having an ignition element, an explosive material, and a flying plate, are placed in the body effective to accelerate the flying plate to impact the first acceptor explosive on the anvil for detonating the first acceptor explosive. A second acceptor explosive is eccentrically located in detonation relationship with the first acceptor explosive to thereafter effect detonation of a main charge.

  17. Drexel University Temperature Sensors

    SciTech Connect (OSTI)

    K. L. Davis; D. L. Knudson; J. L. Rempe; B. M. Chase

    2014-09-01

    This document summarizes background information and presents results related to temperature measurements in the Advanced Test Reactor (ATR) National Scientific User Facility (NSUF) Drexel University Project 31091 irradiation. The objective of this test was to assess the radiation performance of new ceramic materials for advanced reactor applications. Accordingly, irradiations of transition metal carbides and nitrides were performed using the Hydraulic Shuttle Irradiation System (HSIS) in the B-7 position and in static capsules inserted into the A-3 and East Flux Trap Position 5 locations of the ATR.

  18. Practical control strategy eliminates FCCU compressor surge problems

    SciTech Connect (OSTI)

    Campos, M.C.M.M.; Rodriques, P.S.B. )

    1993-01-11

    This paper reports that the control system originally designed for the fluid catalytic cracking unit (FCCU) compressor at Petroleo Brasileiro SA's (Petrobras) Presidente Bernardes refinery, in Sao Paulo, Brazil, was inadequate. The system required almost permanent flow recirculation to prevent surge. An improved antisurge control strategy was implemented in mid-1990. Since then, the unit has operated without the former surge problems.

  19. Sensors, Controls, and Transactional Network | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Sensors, Controls, and Transactional Network Sensors, Controls, and Transactional Network The Transactional Network enables energy, operational, and financial transactions between networked building systems (like rooftop units) and the electric power grid using software applications on the platform or in the Cloud. The Transactional Network enables energy, operational, and financial transactions between networked building systems (like rooftop units) and the electric power grid using software

  20. Securing the United States' power infrastructure

    SciTech Connect (OSTI)

    Happenny, Sean F.

    2015-08-01

    The United States’ power infrastructure is aging, underfunded, and vulnerable to cyber attack. Emerging smart grid technologies may take some of the burden off of existing systems and make the grid as a whole more efficient, reliable, and secure. The Pacific Northwest National Laboratory (PNNL) is funding research into several aspects of smart grid technology and grid security, creating a software simulation tool that will allow researchers to test power distribution networks utilizing different smart grid technologies to determine how the grid and these technologies react under different circumstances. Demonstrating security in embedded systems is another research area PNNL is tackling. Many of the systems controlling the U.S. critical infrastructure, such as the power grid, lack integrated security and the networks protecting them are becoming easier to breach. Providing a virtual power substation network to each student team at the National Collegiate Cyber Defense Competition, thereby supporting the education of future cyber security professionals, is another way PNNL is helping to strengthen the security of the nation’s power infrastructure.

  1. Exhaust bypass flow control for exhaust heat recovery

    DOE Patents [OSTI]

    Reynolds, Michael G.

    2015-09-22

    An exhaust system for an engine comprises an exhaust heat recovery apparatus configured to receive exhaust gas from the engine and comprises a first flow passage in fluid communication with the exhaust gas and a second flow passage in fluid communication with the exhaust gas. A heat exchanger/energy recovery unit is disposed in the second flow passage and has a working fluid circulating therethrough for exchange of heat from the exhaust gas to the working fluid. A control valve is disposed downstream of the first and the second flow passages in a low temperature region of the exhaust heat recovery apparatus to direct exhaust gas through the first flow passage or the second flow passage.

  2. Control methods and systems for indirect evaporative coolers

    DOE Patents [OSTI]

    Woods, Jason; Kozubal, Erik

    2015-09-22

    A control method for operating an indirect evaporative cooler to control temperature and humidity. The method includes operating an airflow control device to provide supply air at a flow rate to a liquid desiccant dehumidifier. The supply air flows through the dehumidifier and an indirect evaporative cooler prior to exiting an outlet into a space. The method includes operating a pump to provide liquid desiccant to the liquid desiccant dehumidifier and sensing a temperature of an airstream at the outlet of the indirect evaporative cooler. The method includes comparing the temperature of the airstream at the outlet to a setpoint temperature at the outlet and controlling the pump to set the flow rate of the liquid desiccant. The method includes sensing space temperature, comparing the space temperature with a setpoint temperature, and controlling the airflow control device to set the flow rate of the supply air based on the comparison.

  3. temperatures | OpenEI Community

    Open Energy Info (EERE)

    with NOAA, released an extensive National Climate Assessment report, projecting future climate changes in the United States under different scenarios. The 1,200 page report...

  4. Waste management units - Savannah River Site. Volume 1, Waste management unit worksheets

    SciTech Connect (OSTI)

    Not Available

    1989-10-01

    This report is a compilation of worksheets from the waste management units of Savannah River Plant. Information is presented on the following: Solid Waste Management Units having received hazardous waste or hazardous constituents with a known release to the environment; Solid Waste Management Units having received hazardous waste or hazardous constituents with no known release to the environment; Solid Waste Management Units having received no hazardous waste or hazardous constituents; Waste Management Units having received source; and special nuclear, or byproduct material only.

  5. Bio-Fuel Production Assisted with High Temperature Steam Electrolysis

    SciTech Connect (OSTI)

    Grant Hawkes; James O'Brien; Michael McKellar

    2012-06-01

    Two hybrid energy processes that enable production of synthetic liquid fuels that are compatible with the existing conventional liquid transportation fuels infrastructure are presented. Using biomass as a renewable carbon source, and supplemental hydrogen from high-temperature steam electrolysis (HTSE), these two hybrid energy processes have the potential to provide a significant alternative petroleum source that could reduce dependence on imported oil. The first process discusses a hydropyrolysis unit with hydrogen addition from HTSE. Non-food biomass is pyrolyzed and converted to pyrolysis oil. The pyrolysis oil is upgraded with hydrogen addition from HTSE. This addition of hydrogen deoxygenates the pyrolysis oil and increases the pH to a tolerable level for transportation. The final product is synthetic crude that could then be transported to a refinery and input into the already used transportation fuel infrastructure. The second process discusses a process named Bio-Syntrolysis. The Bio-Syntrolysis process combines hydrogen from HTSE with CO from an oxygen-blown biomass gasifier that yields syngas to be used as a feedstock for synthesis of liquid synthetic crude. Conversion of syngas to liquid synthetic crude, using a biomass-based carbon source, expands the application of renewable energy beyond the grid to include transportation fuels. It can also contribute to grid stability associated with non-dispatchable power generation. The use of supplemental hydrogen from HTSE enables greater than 90% utilization of the biomass carbon content which is about 2.5 times higher than carbon utilization associated with traditional cellulosic ethanol production. If the electrical power source needed for HTSE is based on nuclear or renewable energy, the process is carbon neutral. INL has demonstrated improved biomass processing prior to gasification. Recyclable biomass in the form of crop residue or energy crops would serve as the feedstock for this process. A process model of syngas production using high temperature electrolysis and biomass gasification is presented. Process heat from the biomass gasifier is used to heat steam for the hydrogen production via the high temperature steam electrolysis process. Oxygen produced form the electrolysis process is used to control the oxidation rate in the oxygen-blown biomass gasifier.

  6. Interface Ferroelectric Transition near the Gap-Opening Temperature in a

    Office of Scientific and Technical Information (OSTI)

    Single-Unit-Cell FeSe Film Grown on Nb-Doped SrTiO 3 Substrate (Journal Article) | SciTech Connect Interface Ferroelectric Transition near the Gap-Opening Temperature in a Single-Unit-Cell FeSe Film Grown on Nb-Doped SrTiO 3 Substrate Citation Details In-Document Search Title: Interface Ferroelectric Transition near the Gap-Opening Temperature in a Single-Unit-Cell FeSe Film Grown on Nb-Doped SrTiO 3 Substrate Authors: Cui, Y.-T. ; Moore, R. G. ; Zhang, A.-M. ; Tian, Y. ; Lee, J. J. ;

  7. Radiological Control

    Broader source: Directives, Delegations, and Requirements [Office of Management (MA)]

    2009-06-16

    The Department of Energy (DOE) has developed this Standard to assist line managers in meeting their responsibilities for implementing occupational radiological control programs.

  8. Low-Temperature Hydrocarbon/CO Oxidation Catalysis in Support of HCCI

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Emission Control | Department of Energy Development of catalyst materials to facilitate the low-temperature oxidation of hydrocarbons and CO in homogeneous charge compression ignition (HCCI) emissions. PDF icon deer08_rappe.pdf More Documents & Publications Low-Temperature Hydrocarbon/CO Oxidation Catalysis in Support of HCCI Emission Control Low-Temperature Hydrocarbon/CO Oxidation Catalysis in Support of HCCI Emission Control Lean NOx Catalysis Research and Development

  9. Malaria control in Tanzania

    SciTech Connect (OSTI)

    Yhdego, M.; Majura, P. )

    1988-01-01

    A review of the malaria control programs and the problem encountered in the United Republic of Tanzania since 1945 to the year 1986 is discussed. Buguruni, one of the squatter areas in the city of Dar es Salaam, is chosen as a case study in order to evaluate the economic advantage of engineering methods for the control of malaria infection. Although the initial capital cost of engineering methods may be high, the cost effectiveness requires a much lower financial burden of only about Tshs. 3 million compared with the conventional methods of larviciding and insecticiding which requires more than Tshs. 10 million. Finally, recommendations for the adoption of engineering methods are made concerning the upgrading of existing roads and footpaths in general with particular emphasis on drainage of large pools of water which serve as breeding sites for mosquitoes.

  10. UNITED STATES NUCLEAR REGULATORY COMMISSION

    Office of Legacy Management (LM)

    WASHINGTON, 0. C. 20555 AUG i 3 1979 ,,~---Y--*. FCAF:Wi3 )I 70-364 : i: SNM-414,jAmendment No. 3 --A Babcock and Wilcox Company Nuclear Materials Division ATTN: Mr. Michael A. Austin Manager, Technical Control 609 North Warren Avenue Apollo, Pennsylvania 15613 Gentiemen: (1 i' \ (. \ In accordance with your application dated June 18, 1979, and pursuant to Title 10, Code of Federal Regulations, Part 70, Materials License SNM-414 is hereby amended to: 1. Delete the function of the Regulatory

  11. Strata control in mineral engineering

    SciTech Connect (OSTI)

    Bieniawski, Z.T.

    1986-01-01

    This book covers the state-of-the-art of strata control practice both in the United States and abroad with respect to strata reinforcement by rock bolting, long wall mining technology and innovations in energy development, such as mining for oil and tunneling for storage of high-level nuclear waste in deep underground repositories. It features coverage of design concepts in rock engineering and rockbolt systems, stability of rock pillars, rockbursts, shaft design and construction and a detailed consideration of mineral and energy needs in the United States.

  12. Changes in Concurrent Precipitation and Temperature Extremes

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Hao, Zengchao; AghaKouchak, Amir; Phillips, Thomas J.

    2013-08-01

    While numerous studies have addressed changes in climate extremes, analyses of concurrence of climate extremes are scarce, and climate change effects on joint extremes are rarely considered. This study assesses the occurrence of joint (concurrent) monthly continental precipitation and temperature extremes in Climate Research Unit (CRU) and University of Delaware (UD) observations, and in 13 Coupled Model Intercomparison Project Phase 5 (CMIP5) global climate simulations. Moreover, the joint occurrences of precipitation and temperature extremes simulated by CMIP5 climate models are compared with those derived from the CRU and UD observations for warm/wet, warm/dry, cold/wet, and cold/dry combinations of joint extremes.more » The number of occurrences of these four combinations during the second half of the 20th century (1951–2004) is assessed on a common global grid. CRU and UD observations show substantial increases in the occurrence of joint warm/dry and warm/wet combinations for the period 1978–2004 relative to 1951–1977. The results show that with respect to the sign of change in the concurrent extremes, the CMIP5 climate model simulations are in reasonable overall agreement with observations. The results reveal notable discrepancies between regional patterns and the magnitude of change in individual climate model simulations relative to the observations of precipitation and temperature.« less

  13. Changes in Concurrent Precipitation and Temperature Extremes

    SciTech Connect (OSTI)

    Hao, Zengchao; AghaKouchak, Amir; Phillips, Thomas J.

    2013-08-01

    While numerous studies have addressed changes in climate extremes, analyses of concurrence of climate extremes are scarce, and climate change effects on joint extremes are rarely considered. This study assesses the occurrence of joint (concurrent) monthly continental precipitation and temperature extremes in Climate Research Unit (CRU) and University of Delaware (UD) observations, and in 13 Coupled Model Intercomparison Project Phase 5 (CMIP5) global climate simulations. Moreover, the joint occurrences of precipitation and temperature extremes simulated by CMIP5 climate models are compared with those derived from the CRU and UD observations for warm/wet, warm/dry, cold/wet, and cold/dry combinations of joint extremes. The number of occurrences of these four combinations during the second half of the 20th century (19512004) is assessed on a common global grid. CRU and UD observations show substantial increases in the occurrence of joint warm/dry and warm/wet combinations for the period 19782004 relative to 19511977. The results show that with respect to the sign of change in the concurrent extremes, the CMIP5 climate model simulations are in reasonable overall agreement with observations. The results reveal notable discrepancies between regional patterns and the magnitude of change in individual climate model simulations relative to the observations of precipitation and temperature.

  14. Integrated Gasification Combined Cycle (IGCC) demonstration project, Polk Power Station -- Unit No. 1. Annual report, October 1993--September 1994

    SciTech Connect (OSTI)

    1995-05-01

    This describes the Tampa Electric Company`s Polk Power Station Unit 1 (PPS-1) Integrated Gasification Combined Cycle (IGCC) demonstration project which will use a Texaco pressurized, oxygen-blown, entrained-flow coal gasifier to convert approximately 2,300 tons per day of coal (dry basis) coupled with a combined cycle power block to produce a net 250 MW electrical power output. Coal is slurried in water, combined with 95% pure oxygen from an air separation unit, and sent to the gasifier to produce a high temperature, high pressure, medium-Btu syngas with a heat content of about 250 Btu/scf (LHV). The syngas then flows through a high temperature heat recovery unit which cools the syngas prior to its entering the cleanup systems. Molten coal ash flows from the bottom of the high temperature heat recovery unit into a water-filled quench chamber where it solidifies into a marketable slag by-product.

  15. The United States Plutonium Balance, 1944-2009 | National Nuclear...

    National Nuclear Security Administration (NNSA)

    Pits The United States Plutonium Balance, 1944-2009 The United States Plutonium Balance, 1944-2009 The United States has released an inventory of its plutonium balances...

  16. United Utilities Green Energy Ltd | Open Energy Information

    Open Energy Info (EERE)

    Green Energy Ltd Jump to: navigation, search Name: United Utilities Green Energy Ltd Place: England, United Kingdom Sector: Hydro, Renewable Energy Product: United Utilities Green...

  17. Nuclear Decommissioning Authority of the United Kingdom NDA ...

    Open Energy Info (EERE)

    Decommissioning Authority of the United Kingdom NDA Jump to: navigation, search Name: Nuclear Decommissioning Authority of the United Kingdom (NDA) Place: Cumbria, England, United...

  18. Dursley, United Kingdom: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    United Kingdom. Registered Energy Companies in Dursley, United Kingdom Hermes Energy Services Retrieved from "http:en.openei.orgwindex.php?titleDursley,United...

  19. United Arab Emirates-NREL Cooperation | Open Energy Information

    Open Energy Info (EERE)

    United Arab Emirates-NREL Cooperation Jump to: navigation, search Logo: United Arab Emirates-NREL Cooperation Name United Arab Emirates-NREL Cooperation AgencyCompany...

  20. Category:Territories of the United States | Open Energy Information

    Open Energy Info (EERE)

    Territories of the United States Jump to: navigation, search This category contains territories of the United States of America. Pages in category "Territories of the United...

  1. United Cool Air | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Air United Cool Air While our process may start with a "basic model" it is seldom that we fabricate more than a few units that are identical. Therefore, the definition of "basic model" has a large impact on the implications associated with testing. PDF icon United_Cool_Air.pdf More Documents & Publications AeroSys: Noncompliance Determination (2010-SE-0302) Haier: Compromise Agreement (2011-SE-1428) GE Appliances: Order (2012-SE-1403)

  2. Single Packaged Vertical Units | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Single Packaged Vertical Units Single Packaged Vertical Units The Department of Energy (DOE) develops standardized data templates for reporting the results of tests conducted in accordance with current DOE test procedures. Templates may be used by third-party laboratories under contract with DOE that conduct testing in support of ENERGY STAR® verification, DOE rulemakings, and enforcement of the federal energy conservation standards. File Single Packaged Vertical Units -- v2.0 More Documents

  3. Review of Diesel Emission Control Technology | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Diesel Emission Control Technology Review of Diesel Emission Control Technology 2002 DEER Conference Presentation: Corning Inc. PDF icon 2002_deer_johnson.pdf More Documents & Publications Diesel Emission Control Technology Review Update on Diesel Exhaust Emission Control Light Duty Diesels in the United States - Some Perspectives

  4. Update on Diesel Exhaust Emission Control Technology and Regulations |

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Department of Energy Control Technology and Regulations Update on Diesel Exhaust Emission Control Technology and Regulations 2004 Diesel Engine Emissions Reduction (DEER) Conference Presentation: Corning PDF icon 2004_deer_johnson2.pdf More Documents & Publications Light Duty Diesels in the United States - Some Perspectives Review of Diesel Emission Control Technology Update on Diesel Exhaust Emission Control

  5. Update on Diesel Exhaust Emission Control | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Control Update on Diesel Exhaust Emission Control 2003 DEER Conference Presentation: Corning, Inc. PDF icon deer_2003_johnson.pdf More Documents & Publications Review of Diesel Emission Control Technology Update on Diesel Exhaust Emission Control Technology and Regulations Light Duty Diesels in the United States - Some Perspectives

  6. Heat Controller: Order (2014-SE-15004)

    Broader source: Energy.gov [DOE]

    DOE ordered Heat Controller, Inc. to abide by the terms of a February 11, 2014 Notice of Noncompliance Determination, after finding Heat Controller had privately labeled and distributed in commerce in the U.S. at least 7,314 noncompliant units of Comfort-Aire branded room air conditioner models CGREG-81H and REG-81J.

  7. High-temperature-measuring device

    DOE Patents [OSTI]

    Not Available

    1981-01-27

    A temperature measuring device for very high design temperatures (to 2000/sup 0/C) is described. The device comprises a homogenous base structure preferably in the form of a sphere or cylinder. The base structure contains a large number of individual walled cells. The base structure has a decreasing coefficient of elasticity within the temperature range being monitored. A predetermined quantity of inert gas is confined within each cell. The cells are dimensonally stable at the normal working temperature of the device. Increases in gaseous pressure within the cells will permanently deform the cell walls at temperatures within the high temperature range to be measured. Such deformation can be correlated to temperature by calibrating similarly constructed devices under known time and temperature conditions.

  8. United Power- Business Energy Efficiency Rebate Program

    Broader source: Energy.gov [DOE]

    United Power, in conjunction with wholesale power supplier Tri-State Generation & Transmission (TSGT), offers rebates for the installation of a variety of commercial energy efficient equipment...

  9. United States of America U S

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Printed in the Available from United States of America U . S . Department of Commerce 5285 Port Royal Road Springfield, VA 22161 National Technical Information Service Price:...

  10. United Oil Company | Open Energy Information

    Open Energy Info (EERE)

    Oil Company Jump to: navigation, search Name: United Oil Company Place: Pittsburgh, Pennsylvania Product: Vegetable-Oil producer Biodiesel producer based in Pittsburgh, PA...

  11. Problems of intraplate extensional tectonics, Western United...

    Open Energy Info (EERE)

    tectonics, Western United States, with special emphasis on the Great Basin Author G.A. Davis Conference Basin and Range Symposium and Great Basin Field Conference; Denver,...

  12. United States National Energy Technology Laboratory's (NETL)...

    Open Energy Info (EERE)

    National Energy Technology Laboratory's (NETL) Smart Grid Implementation Strategy Reference Library Website Jump to: navigation, search Tool Summary LAUNCH TOOL Name: United States...

  13. United Biofuels Inc | Open Energy Information

    Open Energy Info (EERE)

    Biofuels Inc Jump to: navigation, search Name: United Biofuels Inc Place: Plover, Wisconsin Zip: 54467 Sector: Biomass Product: Wisconsin-based manufacturer and distributor of...

  14. United Technologies Corp | Open Energy Information

    Open Energy Info (EERE)

    United Technologies Corp Place: Hartford, Connecticut Zip: CT 06101 Sector: Hydro, Hydrogen Product: UTC is a global technology corporation with activities in aerospace,...

  15. Portable brine evaporator unit, process, and system

    DOE Patents [OSTI]

    Hart, Paul John (Indiana, PA); Miller, Bruce G. (State College, PA); Wincek, Ronald T. (State College, PA); Decker, Glenn E. (Bellefonte, PA); Johnson, David K. (Port Matilda, PA)

    2009-04-07

    The present invention discloses a comprehensive, efficient, and cost effective portable evaporator unit, method, and system for the treatment of brine. The evaporator unit, method, and system require a pretreatment process that removes heavy metals, crude oil, and other contaminates in preparation for the evaporator unit. The pretreatment and the evaporator unit, method, and system process metals and brine at the site where they are generated (the well site). Thus, saving significant money to producers who can avoid present and future increases in transportation costs.

  16. Single Packaged Vertical Units | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    standards. File Single Packaged Vertical Units -- v2.0 More Documents & Publications Room Air Conditioners Commercial Refrigeration Equipment Commercial Refrigeration Equipment

  17. United States | OpenEI Community

    Open Energy Info (EERE)

    load TMY3 United States Load data Image source: NREL Files: applicationzip icon System Advisor Model Tool for Downloading Load Data Graham7781's picture Submitted by...

  18. United Electric Coop, Inc | Open Energy Information

    Open Energy Info (EERE)

    Number: (208)-679-2222 Website: www.unitedelectric.coop Twitter: @unitedelectricc Facebook: https:www.facebook.compagesUnited-Electric-Co-op298510305296 Outage Hotline:...

  19. Ulubelu Unit 1 | Open Energy Information

    Open Energy Info (EERE)

    Information Name Ulubelu Unit 1 Facility Geothermal Power Plant Sector Geothermal energy Location Information Coordinates -5.2341767, 104.4606845 Loading map......

  20. Lahendong Unit 4 | Open Energy Information

    Open Energy Info (EERE)

    Information Name Lahendong Unit 4 Facility Geothermal Power Plant Sector Geothermal energy Location Information Coordinates 1.2764287, 124.8237803 Loading map......